platform/kernel/linux-starfive.git
18 months agodrm/drm_lease: Remove usage of deprecated DRM_DEBUG_LEASE
Siddh Raman Pant [Mon, 9 Jan 2023 13:00:35 +0000 (18:30 +0530)]
drm/drm_lease: Remove usage of deprecated DRM_DEBUG_LEASE

drm_print.h says DRM_DEBUG_LEASE is deprecated in favor of
drm_dbg_lease().

Signed-off-by: Siddh Raman Pant <code@siddh.me>
Reviewed-by: Simon Ser <contact@emersion.fr>
Signed-off-by: Simon Ser <contact@emersion.fr>
Link: https://patchwork.freedesktop.org/patch/msgid/71a443d705c62a217a3352b221b7a96c53bb1031.1673269059.git.code@siddh.me
18 months agodrm/drm_blend: Remove usage of deprecated DRM_DEBUG_ATOMIC
Siddh Raman Pant [Mon, 9 Jan 2023 13:00:34 +0000 (18:30 +0530)]
drm/drm_blend: Remove usage of deprecated DRM_DEBUG_ATOMIC

drm_print.h says DRM_DEBUG_ATOMIC is deprecated in favor of
drm_dbg_atomic().

Signed-off-by: Siddh Raman Pant <code@siddh.me>
Reviewed-by: Simon Ser <contact@emersion.fr>
Signed-off-by: Simon Ser <contact@emersion.fr>
Link: https://patchwork.freedesktop.org/patch/msgid/1a5b5aa012689572baf561eea0dd0b5934645af5.1673269059.git.code@siddh.me
18 months agodrm: Remove usage of deprecated DRM_DEBUG_PRIME
Siddh Raman Pant [Mon, 9 Jan 2023 13:00:33 +0000 (18:30 +0530)]
drm: Remove usage of deprecated DRM_DEBUG_PRIME

drm_print.h says DRM_DEBUG_PRIME is deprecated in favor of
drm_dbg_prime().

Signed-off-by: Siddh Raman Pant <code@siddh.me>
Reviewed-by: Simon Ser <contact@emersion.fr>
Signed-off-by: Simon Ser <contact@emersion.fr>
Link: https://patchwork.freedesktop.org/patch/msgid/cd663b1bc42189e55898cddecdb3b73c591b341a.1673269059.git.code@siddh.me
18 months agodrm/imx/dcss: Don't call dev_set_drvdata(..., NULL);
Uwe Kleine-König [Fri, 30 Dec 2022 13:00:25 +0000 (14:00 +0100)]
drm/imx/dcss: Don't call dev_set_drvdata(..., NULL);

The driver core takes care about removing driver data, so this can be
dropped from the driver.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Laurentiu Palcu <laurentiu.palcu@oss.nxp.com>
Signed-off-by: Laurentiu Palcu <laurentiu.palcu@oss.nxp.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221230130025.240776-2-u.kleine-koenig@pengutronix.de
18 months agodrm/imx/dcss: Drop if blocks with always false condition
Uwe Kleine-König [Fri, 30 Dec 2022 13:00:24 +0000 (14:00 +0100)]
drm/imx/dcss: Drop if blocks with always false condition

dcss_drv_platform_remove() is only called for a device after
dcss_drv_platform_probe() returned 0. In that case dev_set_drvdata() was
called with a non-NULL value and so dev_get_drvdata() won't return NULL.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Laurentiu Palcu <laurentiu.palcu@oss.nxp.com>
Signed-off-by: Laurentiu Palcu <laurentiu.palcu@oss.nxp.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221230130025.240776-1-u.kleine-koenig@pengutronix.de
18 months agodrm/debugfs: add descriptions to struct parameters
Maíra Canal [Thu, 5 Jan 2023 19:30:39 +0000 (16:30 -0300)]
drm/debugfs: add descriptions to struct parameters

The structs drm_debugfs_info and drm_debugfs_entry don't have
descriptions for their parameters, which is causing the following warnings:

include/drm/drm_debugfs.h:93: warning: Function parameter or member
'name' not described in 'drm_debugfs_info'
include/drm/drm_debugfs.h:93: warning: Function parameter or member
'show' not described in 'drm_debugfs_info'
include/drm/drm_debugfs.h:93: warning: Function parameter or member
'driver_features' not described in 'drm_debugfs_info'
include/drm/drm_debugfs.h:93: warning: Function parameter or member
'data' not described in 'drm_debugfs_info'
include/drm/drm_debugfs.h:105: warning: Function parameter or member
'dev' not described in 'drm_debugfs_entry'
include/drm/drm_debugfs.h:105: warning: Function parameter or member
'file' not described in 'drm_debugfs_entry'
include/drm/drm_debugfs.h:105: warning: Function parameter or member
'list' not described in 'drm_debugfs_entry'

Therefore, fix the warnings by adding descriptions to all struct
parameters.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20230105193039.287677-2-mcanal@igalia.com
18 months agodrm/debugfs: use octal permissions instead of symbolic permissions
Maíra Canal [Thu, 5 Jan 2023 19:30:38 +0000 (16:30 -0300)]
drm/debugfs: use octal permissions instead of symbolic permissions

Currently, debugfs functions are using symbolic macros as permission
bits, but checkpatch reinforces permission bits in the octal form, as
they are more readable and easier to understand [1]. Moreover, using
the symbolic macro S_IFREG is redundant.

Therefore, use octal permission bits in all debugfs functions.

[1] https://docs.kernel.org/dev-tools/checkpatch.html#permissions

Suggested-by: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20230105193039.287677-1-mcanal@igalia.com
18 months agoMAINTAINERS: Add entry for Himax HX8394 panel controller driver
Javier Martinez Canillas [Mon, 2 Jan 2023 23:07:33 +0000 (00:07 +0100)]
MAINTAINERS: Add entry for Himax HX8394 panel controller driver

Add myself as maintainer for the driver and devicetree bindings schema.

Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230102230733.3506624-4-javierm@redhat.com
18 months agodrm: panel: Add Himax HX8394 panel controller driver
Kamil Trzciński [Mon, 2 Jan 2023 23:07:32 +0000 (00:07 +0100)]
drm: panel: Add Himax HX8394 panel controller driver

The driver is for panels based on the Himax HX8394 controller, such as the
HannStar HSD060BHW4 720x1440 TFT LCD panel that uses a MIPI-DSI interface.

Signed-off-by: Kamil Trzciński <ayufan@ayufan.eu>
Co-developed-by: Ondrej Jirman <megi@xff.cz>
Signed-off-by: Ondrej Jirman <megi@xff.cz>
Co-developed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Tested-by: Tom Fitzhenry <tom@tom-fitzhenry.me.uk>
Tested-by: Peter Robinson <pbrobinson@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230102230733.3506624-3-javierm@redhat.com
18 months agodt-bindings: display: Add Himax HX8394 panel controller
Javier Martinez Canillas [Mon, 2 Jan 2023 23:07:31 +0000 (00:07 +0100)]
dt-bindings: display: Add Himax HX8394 panel controller

Add device tree bindings for panels based on the Himax HX8394 controller,
such as the HannStar HSD060BHW4 720x1440 TFT LCD panel that is connected
through a MIPI-DSI video interface.

Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230102230733.3506624-2-javierm@redhat.com
18 months agodoc: add dma-buf IOCTL code to table
Simon Ser [Mon, 28 Nov 2022 13:39:05 +0000 (13:39 +0000)]
doc: add dma-buf IOCTL code to table

The code 'b' is used for dma-buf IOCTLs.

Signed-off-by: Simon Ser <contact@emersion.fr>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Christian König <christian.koenig@amd.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221128133853.355645-1-contact@emersion.fr
18 months agodrm/vc4: dsi: Drop unused i2c include
Uwe Kleine-König [Mon, 19 Dec 2022 08:40:23 +0000 (09:40 +0100)]
drm/vc4: dsi: Drop unused i2c include

The driver doesn't make use of any symbol provided by <linux/i2c.h>. So
drop the include.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221219084023.1402282-1-u.kleine-koenig@pengutronix.de
18 months agoMAINTAINERS: drm/hisilicon: Drop Chen Feng
Uwe Kleine-König [Mon, 19 Dec 2022 08:53:07 +0000 (09:53 +0100)]
MAINTAINERS: drm/hisilicon: Drop Chen Feng

The listed address doesn't work any more:

  puck.chen@hisilicon.com
    host mx5.hisilicon.com [124.71.93.234]
    SMTP error from remote mail server after RCPT TO:<puck.chen@hisilicon.com>:
    551 5.1.1 <puck.chen@hisilicon.com>: Recipient address rejected:
    Failed recipient validation check.: host 127.0.0.1[127.0.0.1] said:
    554 5.7.1 recipient verify from ldap failed (in reply to RCPT TO command)

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221219085307.1403247-1-u.kleine-koenig@pengutronix.de
18 months agodrm: Only select I2C_ALGOBIT for drivers that actually need it
Uwe Kleine-König [Mon, 19 Dec 2022 08:36:27 +0000 (09:36 +0100)]
drm: Only select I2C_ALGOBIT for drivers that actually need it

While working on a drm driver that doesn't need the i2c algobit stuff I
noticed that DRM selects this code even though only 8 drivers actually use
it. While also only some drivers use i2c, keep the select for I2C for the
next cleanup patch. Still prepare this already by also selecting I2C for
the individual drivers.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221219083627.1401627-1-u.kleine-koenig@pengutronix.de
18 months agodrm/panel: raspberrypi-touchscreen: Convert to i2c's .probe_new()
Uwe Kleine-König [Fri, 18 Nov 2022 22:36:17 +0000 (23:36 +0100)]
drm/panel: raspberrypi-touchscreen: Convert to i2c's .probe_new()

The probe function doesn't make use of the i2c_device_id * parameter so it
can be trivially converted.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221118224540.619276-44-uwe@kleine-koenig.org
18 months agodrm/panel: olimex-lcd-olinuxino: Convert to i2c's .probe_new()
Uwe Kleine-König [Fri, 18 Nov 2022 22:36:16 +0000 (23:36 +0100)]
drm/panel: olimex-lcd-olinuxino: Convert to i2c's .probe_new()

The probe function doesn't make use of the i2c_device_id * parameter so it
can be trivially converted.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221118224540.619276-43-uwe@kleine-koenig.org
18 months agodrm/i2c/tda998x: Convert to i2c's .probe_new()
Uwe Kleine-König [Fri, 18 Nov 2022 22:36:15 +0000 (23:36 +0100)]
drm/i2c/tda998x: Convert to i2c's .probe_new()

The probe function doesn't make use of the i2c_device_id * parameter so it
can be trivially converted.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221118224540.619276-42-uwe@kleine-koenig.org
18 months agodrm/i2c/tda9950: Convert to i2c's .probe_new()
Uwe Kleine-König [Fri, 18 Nov 2022 22:36:14 +0000 (23:36 +0100)]
drm/i2c/tda9950: Convert to i2c's .probe_new()

The probe function doesn't make use of the i2c_device_id * parameter so it
can be trivially converted.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221118224540.619276-41-uwe@kleine-koenig.org
18 months agodrm/i2c/sil164: Convert to i2c's .probe_new()
Uwe Kleine-König [Fri, 18 Nov 2022 22:36:13 +0000 (23:36 +0100)]
drm/i2c/sil164: Convert to i2c's .probe_new()

The probe function doesn't make use of the i2c_device_id * parameter so it
can be trivially converted.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221118224540.619276-40-uwe@kleine-koenig.org
18 months agodrm/i2c/ch7006: Convert to i2c's .probe_new()
Uwe Kleine-König [Fri, 18 Nov 2022 22:36:12 +0000 (23:36 +0100)]
drm/i2c/ch7006: Convert to i2c's .probe_new()

The probe function doesn't make use of the i2c_device_id * parameter so it
can be trivially converted.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221118224540.619276-39-uwe@kleine-koenig.org
18 months agodrm/mxsfb: improve clk handling for axi clk
Uwe Kleine-König [Tue, 10 Jan 2023 09:38:20 +0000 (10:38 +0100)]
drm/mxsfb: improve clk handling for axi clk

Ignoring errors from devm_clk_get() is wrong. To handle not all platforms
having an axi clk use devm_clk_get_optional() instead and do proper error
handling.

Also the clk API handles NULL as a dummy clk (which is also returned by
devm_clk_get_optional() if there is no clk) so there is no need to check
for NULL before calling clk_prepare_enable() or its counter part.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200720153254.18071-1-u.kleine-koenig@pengutronix.de
18 months agodrm/meson: dw-hdmi: Fix devm_regulator_*get_enable*() conversion
Marek Szyprowski [Mon, 9 Jan 2023 22:00:33 +0000 (23:00 +0100)]
drm/meson: dw-hdmi: Fix devm_regulator_*get_enable*() conversion

devm_regulator_get_enable_optional() function returns 0 on success, so
use it for the check if function succeeded instead of the -ENODEV value.

Fixes: 429e87063661 ("drm/meson: dw-hdmi: Use devm_regulator_*get_enable*()")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
[narmstrong: s/succeeded/succeeded/ in commit message]
Link: https://patchwork.freedesktop.org/patch/msgid/20230109220033.31202-1-m.szyprowski@samsung.com
18 months agodrm/panel: add visionox vtdr6130 DSI panel driver
Neil Armstrong [Mon, 9 Jan 2023 08:49:30 +0000 (09:49 +0100)]
drm/panel: add visionox vtdr6130 DSI panel driver

Add support for the 1080x2400 Visionox VTDR6130 AMOLED DSI panel
found on the Qualcomm SM8550 MTP board.

By default the the panel is configured to work with DSI compressed
streams, but can work in uncompressed video mode since 1080x2400 in
RGB888 fits in the 4 DSI lanes bandwidth.

While display compression is preferred for performance and power
reasons, let's start with the uncompressed video mode support and
add the DSC support later on.

Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
[narmstrong: moved drm/display/ include file before drm/drm_]
Link: https://patchwork.freedesktop.org/patch/msgid/20230103-topic-sm8550-upstream-vtdr6130-panel-v2-2-dd6200f47a76@linaro.org
18 months agodt-bindings: display: panel: document the Visionox VTDR6130 AMOLED DSI Panel
Neil Armstrong [Mon, 9 Jan 2023 08:49:29 +0000 (09:49 +0100)]
dt-bindings: display: panel: document the Visionox VTDR6130 AMOLED DSI Panel

Document the 1080x2400 Visionox VTDR6130 AMOLED DSI Panel bindings.

Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
[narmstrong: drop last, redundant "bindings" in subject]
Link: https://patchwork.freedesktop.org/patch/msgid/20230103-topic-sm8550-upstream-vtdr6130-panel-v2-1-dd6200f47a76@linaro.org
18 months agodrm/vc4: vec: Support progressive modes
Mateusz Kwiatkowski [Wed, 7 Dec 2022 11:53:26 +0000 (12:53 +0100)]
drm/vc4: vec: Support progressive modes

The VEC is able to output progressive analog modes, but the driver has
never set the proper bit to do so.

Signed-off-by: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
Link: https://lore.kernel.org/r/20221207-rpi-hvs-crtc-misc-v1-15-1f8e0770798b@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
18 months agodrm/vc4: hdmi: Correct interlaced timings again
Dave Stevenson [Wed, 7 Dec 2022 11:53:25 +0000 (12:53 +0100)]
drm/vc4: hdmi: Correct interlaced timings again

The back porch timings were correct, only the sync offset was wrong.
Correct timing is now reported for 1080i and 576i, but the h offset is
incorrect for 480i for non-obvious reasons.

Fixes: fb10dc451c0f ("drm/vc4: hdmi: Correct HDMI timing registers for interlaced modes")
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://lore.kernel.org/r/20221207-rpi-hvs-crtc-misc-v1-14-1f8e0770798b@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
18 months agodrm/vc4: crtc: Fix timings for VEC modes
Mateusz Kwiatkowski [Wed, 7 Dec 2022 11:53:24 +0000 (12:53 +0100)]
drm/vc4: crtc: Fix timings for VEC modes

This commit fixes vertical timings of the VEC (composite output) modes
to accurately represent the 525-line ("NTSC") and 625-line ("PAL") ITU-R
standards.

Previous timings were actually defined as 502 and 601 lines, resulting
in non-standard 62.69 Hz and 52 Hz signals being generated,
respectively.

Changes to vc4_crtc.c have also been made, to make the PixelValve
vertical timings accurately correspond to the DRM modeline in interlaced
modes. The resulting VERTA/VERTB register values have been verified
against the reference values set by the Raspberry Pi firmware.

Signed-off-by: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
Link: https://lore.kernel.org/r/20221207-rpi-hvs-crtc-misc-v1-13-1f8e0770798b@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
18 months agodrm/vc4: Add comments for which HVS_PIXEL_ORDER_xxx defines apply
Dave Stevenson [Wed, 7 Dec 2022 11:53:23 +0000 (12:53 +0100)]
drm/vc4: Add comments for which HVS_PIXEL_ORDER_xxx defines apply

The HVS_PIXEL_ORDER_xxx defines apply to specific HVS_PIXEL_FORMAT_xxx
modes, so add comments to make this obvious.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://lore.kernel.org/r/20221207-rpi-hvs-crtc-misc-v1-12-1f8e0770798b@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
18 months agodrm/vc4: plane: Add 3:3:2 and 4:4:4:4 RGB/RGBX/RGBA formats
Dave Stevenson [Wed, 7 Dec 2022 11:53:22 +0000 (12:53 +0100)]
drm/vc4: plane: Add 3:3:2 and 4:4:4:4 RGB/RGBX/RGBA formats

The hardware supports the 332 8bpp and 4:4:4:4 16bpp formats,
but the table of supported formats didn't include them.
Add them in.

In theory they are supported for T-format as well as linear,
but without a way to test them just add them as linear for now.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://lore.kernel.org/r/20221207-rpi-hvs-crtc-misc-v1-11-1f8e0770798b@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
18 months agodrm/vc4: plane: Omit pixel_order from the hvs_format for hvs5 only formats
Dave Stevenson [Wed, 7 Dec 2022 11:53:21 +0000 (12:53 +0100)]
drm/vc4: plane: Omit pixel_order from the hvs_format for hvs5 only formats

pixel_order is used for the earlier versions of the HVS, so is
redundant on the 10:10:10:2 and 10bit YUV formats that are only
supported on HVS5.
Remove the assignment from the table to avoid confusion.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://lore.kernel.org/r/20221207-rpi-hvs-crtc-misc-v1-10-1f8e0770798b@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
18 months agodrm/vc4: plane: Allow using 0 as a pixel order value
Dave Stevenson [Wed, 7 Dec 2022 11:53:20 +0000 (12:53 +0100)]
drm/vc4: plane: Allow using 0 as a pixel order value

vc4_plane_mode_set for HVS5 was using pixel_order unless pixel_order_hvs5
was non-zero, except 0 is a valid value for the pixel_order.

Specify pixel_order_hvs5 for all formats and remove the conditional.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://lore.kernel.org/r/20221207-rpi-hvs-crtc-misc-v1-9-1f8e0770798b@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
18 months agodrm/vc4: hvs: Ignore atomic_flush if we're disabled
Maxime Ripard [Wed, 7 Dec 2022 11:53:19 +0000 (12:53 +0100)]
drm/vc4: hvs: Ignore atomic_flush if we're disabled

atomic_flush will be called for each CRTC even if they aren't enabled.

The whole code we have there will thus run without a properly affected
channel, which can then result in all sorts of weird behaviour.

Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://lore.kernel.org/r/20221207-rpi-hvs-crtc-misc-v1-8-1f8e0770798b@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
18 months agodrm/vc4: hvs: Add DRM 210101010 RGB formats
Dave Stevenson [Wed, 7 Dec 2022 11:53:18 +0000 (12:53 +0100)]
drm/vc4: hvs: Add DRM 210101010 RGB formats

HVS5 supports the 210101010 RGB[A|X] formats, but they were
missing from the DRM to HVS mapping list, so weren't available.
Add them in.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://lore.kernel.org/r/20221207-rpi-hvs-crtc-misc-v1-7-1f8e0770798b@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
18 months agodrm/vc4: hvs: Fix colour order for xRGB1555 on HVS5
Dave Stevenson [Wed, 7 Dec 2022 11:53:17 +0000 (12:53 +0100)]
drm/vc4: hvs: Fix colour order for xRGB1555 on HVS5

Same as the xRGB8888 formats, HVS5 has managed to swap the colour
channels for the xRGB1555 formats as well. Add the relevant
config for pixel_order_hvs5.

Fixes: c54619b0bfb3 ("drm/vc4: Add support for the BCM2711 HVS5")
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://lore.kernel.org/r/20221207-rpi-hvs-crtc-misc-v1-6-1f8e0770798b@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
18 months agodrm/vc4: hvs: Support zpos on all planes
Dave Stevenson [Wed, 7 Dec 2022 11:53:16 +0000 (12:53 +0100)]
drm/vc4: hvs: Support zpos on all planes

Adds the zpos property to all planes, and creates the dlist
by placing the fragments in the correct order based on zpos.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://lore.kernel.org/r/20221207-rpi-hvs-crtc-misc-v1-5-1f8e0770798b@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
18 months agodrm/vc4: hvs: Correct interrupt masking bit assignment for HVS5
Dave Stevenson [Wed, 7 Dec 2022 11:53:15 +0000 (12:53 +0100)]
drm/vc4: hvs: Correct interrupt masking bit assignment for HVS5

HVS5 has moved the interrupt enable bits around within the
DISPCTRL register, therefore the configuration has to be updated
to account for this.

Fixes: c54619b0bfb3 ("drm/vc4: Add support for the BCM2711 HVS5")
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://lore.kernel.org/r/20221207-rpi-hvs-crtc-misc-v1-4-1f8e0770798b@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
18 months agodrm/vc4: hvs: SCALER_DISPBKGND_AUTOHS is only valid on HVS4
Dave Stevenson [Wed, 7 Dec 2022 11:53:14 +0000 (12:53 +0100)]
drm/vc4: hvs: SCALER_DISPBKGND_AUTOHS is only valid on HVS4

The bit used for SCALER_DISPBKGND_AUTOHS in SCALER_DISPBKGNDX
has been repurposed on HVS5 to configure whether a display can
win back-to-back arbitration wins for the COB.

This is not desirable, therefore only select this bit on HVS4,
and explicitly clear it on HVS5.

Fixes: c54619b0bfb3 ("drm/vc4: Add support for the BCM2711 HVS5")
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://lore.kernel.org/r/20221207-rpi-hvs-crtc-misc-v1-3-1f8e0770798b@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
18 months agodrm/vc4: hvs: Set AXI panic modes
Dave Stevenson [Wed, 7 Dec 2022 11:53:13 +0000 (12:53 +0100)]
drm/vc4: hvs: Set AXI panic modes

The HVS can change AXI request mode based on how full the COB
FIFOs are.
Until now the vc4 driver has been relying on the firmware to
have set these to sensible values.

With HVS channel 2 now being used for live video, change the
panic mode for all channels to be explicitly set by the driver,
and the same for all channels.

Fixes: c54619b0bfb3 ("drm/vc4: Add support for the BCM2711 HVS5")
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://lore.kernel.org/r/20221207-rpi-hvs-crtc-misc-v1-2-1f8e0770798b@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
18 months agodrm/vc4: hvs: Configure the HVS COB allocations
Dave Stevenson [Wed, 7 Dec 2022 11:53:12 +0000 (12:53 +0100)]
drm/vc4: hvs: Configure the HVS COB allocations

The HVS Composite Output Buffer (COB) is the memory used to
generate the output pixel data.
Until now the vc4 driver has been relying on the firmware to
have set these to sensible values.

In testing triple screen support it has been noted that only
1 line was being assigned to HVS channel 2. Whilst that is fine
for the transposer (TXP), and indeed needed as only some pixels
have an alpha channel, it is insufficient to run a live display.

Split the COB more evenly between the 3 HVS channels.

Fixes: c54619b0bfb3 ("drm/vc4: Add support for the BCM2711 HVS5")
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://lore.kernel.org/r/20221207-rpi-hvs-crtc-misc-v1-1-1f8e0770798b@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
18 months agodrm/mipi-dsi: Add a mipi_dsi_dcs_write_seq() macro
Javier Martinez Canillas [Mon, 2 Jan 2023 20:25:42 +0000 (21:25 +0100)]
drm/mipi-dsi: Add a mipi_dsi_dcs_write_seq() macro

Many panel drivers define dsi_dcs_write_seq() and dsi_generic_write_seq()
macros to send DCS commands and generic write packets respectively, with
the payload specified as a list of parameters instead of using arrays.

There's already a macro for the former, introduced by commit 2a9e9daf75231
("drm/mipi-dsi: Introduce mipi_dsi_dcs_write_seq macro") so drivers can be
changed to use that. But there isn't one yet for the latter, let's add it.

Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230102202542.3494677-2-javierm@redhat.com
18 months agodrm/mipi-dsi: Fix mipi_dsi_dcs_write_seq() macro definition format
Javier Martinez Canillas [Mon, 2 Jan 2023 20:25:41 +0000 (21:25 +0100)]
drm/mipi-dsi: Fix mipi_dsi_dcs_write_seq() macro definition format

Change made using a `clang-format -i include/drm/drm_mipi_dsi.h` command.

Suggested-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230102202542.3494677-1-javierm@redhat.com
18 months agodrm/arm/hdlcd: use new debugfs device-centered functions
Maíra Canal [Mon, 26 Dec 2022 15:50:23 +0000 (12:50 -0300)]
drm/arm/hdlcd: use new debugfs device-centered functions

Replace the use of drm_debugfs_create_files() with the new
drm_debugfs_add_files() function, which center the debugfs files
management on the drm_device instead of drm_minor. Moreover, remove the
debugfs_init hook and add the debugfs files directly on hdlcd_drm_bind(),
before drm_dev_register().

Signed-off-by: Maíra Canal <mcanal@igalia.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20221226155029.244355-4-mcanal@igalia.com
18 months agodrm/gud: use new debugfs device-centered functions
Maíra Canal [Mon, 26 Dec 2022 15:50:22 +0000 (12:50 -0300)]
drm/gud: use new debugfs device-centered functions

Replace the use of drm_debugfs_create_files() with the new
drm_debugfs_add_file() function, which center the debugfs files
management on the drm_device instead of drm_minor. Moreover, remove the
debugfs_init hook and add the debugfs files directly on gud_probe(),
before drm_dev_register().

Signed-off-by: Maíra Canal <mcanal@igalia.com>
Acked-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20221226155029.244355-3-mcanal@igalia.com
18 months agodrm/fb-helper: Replace bpp/depth parameter by color mode
Thomas Zimmermann [Fri, 6 Jan 2023 11:23:24 +0000 (12:23 +0100)]
drm/fb-helper: Replace bpp/depth parameter by color mode

Replace the combination of bpp and depth with a single color-mode
argument. Handle special cases in simpledrm and ofdrm. Hard-code
XRGB8888 as fallback format for cases where no given format works.

The color-mode argument accepts the same values as the kernel's video
parameter. These are mostly bpp values between 1 and 32. The exceptions
are 15, which has a color depth of 15 and a bpp value of 16; and 32,
which has a color depth of 24 and a bpp value of 32.

v4:
* add back lost test for bpp_specified (Maira)
* add Fixes tag (Daniel)
v3:
* fix ofdrm build (Maxime)
v2:
* minimize changes (Daniel)
* use drm_driver_legacy_fb_format() (Daniel)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Tested-by: Maíra Canal <mcanal@igalia.com> # vc4 and vkms
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Fixes: 37c90d589dc0 ("drm/fb-helper: Fix single-probe color-format selection")
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Javier Martinez Canillas <javierm@redhat.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230106112324.22055-1-tzimmermann@suse.de
18 months agodrm/bridge_connector: drop drm_bridge_connector_en/disable_hpd()
Dmitry Baryshkov [Wed, 2 Nov 2022 18:07:05 +0000 (21:07 +0300)]
drm/bridge_connector: drop drm_bridge_connector_en/disable_hpd()

Now as all drivers stopped calling drm_bridge_connector_enable_hpd() and
drm_bridge_connector_disable_hpd() it is safe to remove them complelely.
Rename our internal helpers to remove the underscore prefix.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20221102180705.459294-8-dmitry.baryshkov@linaro.org
18 months agodrm/omap: stop using drm_bridge_connector_en/disable_hpd()
Dmitry Baryshkov [Wed, 2 Nov 2022 18:07:04 +0000 (21:07 +0300)]
drm/omap: stop using drm_bridge_connector_en/disable_hpd()

The functionality of drm_bridge_connector_enable_hpd() and
drm_bridge_connector_disable_hpd() is provided automatically by the
drm_kms_poll helpers. Stop calling these functions manually.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20221102180705.459294-7-dmitry.baryshkov@linaro.org
18 months agodrm/msm/hdmi: stop using drm_bridge_connector_en/disable_hpd()
Dmitry Baryshkov [Wed, 2 Nov 2022 18:07:03 +0000 (21:07 +0300)]
drm/msm/hdmi: stop using drm_bridge_connector_en/disable_hpd()

The functionality of drm_bridge_connector_enable_hpd() and
drm_bridge_connector_disable_hpd() is provided automatically by the
drm_kms_poll helpers. Stop calling these functions manually.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20221102180705.459294-6-dmitry.baryshkov@linaro.org
18 months agodrm/imx/dcss: stop using drm_bridge_connector_en/disable_hpd()
Dmitry Baryshkov [Wed, 2 Nov 2022 18:07:02 +0000 (21:07 +0300)]
drm/imx/dcss: stop using drm_bridge_connector_en/disable_hpd()

The functionality of drm_bridge_connector_enable_hpd() and
drm_bridge_connector_disable_hpd() is provided automatically by the
drm_kms_poll helpers. Stop calling these functions manually.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
[narmstrong: removed now unused kms var in dcss_dev_suspend|resume()]
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20221102180705.459294-5-dmitry.baryshkov@linaro.org
18 months agodrm/bridge_connector: rely on drm_kms_helper_poll_* for HPD enablement
Dmitry Baryshkov [Wed, 2 Nov 2022 18:07:01 +0000 (21:07 +0300)]
drm/bridge_connector: rely on drm_kms_helper_poll_* for HPD enablement

Use drm_connector's helpers enable_hpd and disable_hpd to enable and
disable HPD automatically by the means of drm_kms_helper_poll_*
functions. As the drm_bridge_connector_enable_hpd() and
drm_bridge_connector_disable_hpd() functions are now unused, replace
them with stubs to ease driver migration.

Enabling the HPD from drm_bridge_connector_init() can happen too early,
before the driver is prepared to handle HPD events. As the
drm_bridge_connector_enable_hpd() is empty anyway, drop this call
anyway.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20221102180705.459294-4-dmitry.baryshkov@linaro.org
18 months agodrm/probe-helper: enable and disable HPD on connectors
Dmitry Baryshkov [Wed, 2 Nov 2022 18:07:00 +0000 (21:07 +0300)]
drm/probe-helper: enable and disable HPD on connectors

Introduce two drm_connector_helper_funcs: enable_hpd() and disable_hpd().
They are called by drm_kms_helper_poll_enable() and
drm_kms_helper_poll_disable() (and thus drm_kms_helper_poll_init() and
drm_kms_helper_poll_fini()) respectively.

This allows DRM drivers to rely on drm_kms_helper_poll for enabling and
disabling HPD detection rather than doing that manually.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20221102180705.459294-3-dmitry.baryshkov@linaro.org
18 months agodrm/poll-helper: merge drm_kms_helper_poll_disable() and _fini()
Dmitry Baryshkov [Wed, 2 Nov 2022 18:06:59 +0000 (21:06 +0300)]
drm/poll-helper: merge drm_kms_helper_poll_disable() and _fini()

Merge drm_kms_helper_poll_disable() and drm_kms_helper_poll_fini() code
into a common helper function.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20221102180705.459294-2-dmitry.baryshkov@linaro.org
18 months agodrm/fourcc: Document open source user waiver
Daniel Vetter [Wed, 23 Nov 2022 19:24:37 +0000 (20:24 +0100)]
drm/fourcc: Document open source user waiver

It's a bit a FAQ, and we really can't claim to be the authoritative
source for allocating these numbers used in many standard extensions
if we tell closed source or vendor stacks in general to go away.

Iirc this was already clarified in some vulkan discussions, but I
can't find that anywhere anymore. At least not in a public link.

Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@gmail.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Alex Deucher <alexdeucher@gmail.com>
Cc: Daniel Stone <daniel@fooishbar.org>
Cc: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Cc: Jason Ekstrand <jason@jlekstrand.net>
Cc: Neil Trevett <ntrevett@nvidia.com>
Acked-by: Daniel Stone <daniels@collabora.com>
Acked-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: David Airlie <airlied@gmail.com>
Acked-by: Marek Olšák <maraeo@gmail.com>
Acked-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Acked-by: Jason Ekstrand <jason.ekstrand@collabora.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221123192437.1065826-1-daniel.vetter@ffwll.ch
18 months agodrm/bridge: panel: Prevent ERR_PTR Dereference
Maxime Ripard [Mon, 2 Jan 2023 12:01:23 +0000 (13:01 +0100)]
drm/bridge: panel: Prevent ERR_PTR Dereference

Commit 5ea6b1702781 ("drm/panel: Add prepare_prev_first flag to
drm_panel") introduced an access to the bridge pointer in the
devm_drm_panel_bridge_add_typed() function.

However, due to the unusual ERR_PTR check when getting that pointer, the
pointer access is done even though the pointer might be an error
pointer.

Rework the function for a more traditional design that will return
immediately if it gets an ERR_PTR so that we never access the pointer in
that case.

Fixes: 5ea6b1702781 ("drm/panel: Add prepare_prev_first flag to drm_panel")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20230102120123.19062-1-maxime@cerno.tech
Link: https://patchwork.freedesktop.org/patch/msgid/20230102120123.19062-1-maxime@cerno.tech
18 months agodrm/docs: Explicitly document default CRTC background behavior
Sean Paul [Tue, 3 Jan 2023 15:27:38 +0000 (15:27 +0000)]
drm/docs: Explicitly document default CRTC background behavior

Add a paragraph explaining that the default behavior for areas which
are not covered by planes or where planes are blending with the CRTC
background, is black.

This is alluded to in the "pixel blend mode" property docs, but not
called out explicitly.

Reviewed-by: Simon Ser <contact@emersion.fr>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230103152738.1213785-1-sean@poorly.run
18 months agodrm/v3d: replace open-coded implementation of drm_gem_object_lookup
Maíra Canal [Tue, 27 Dec 2022 20:00:11 +0000 (17:00 -0300)]
drm/v3d: replace open-coded implementation of drm_gem_object_lookup

As v3d_submit_tfu_ioctl() performs the same steps as
drm_gem_object_lookup(), replace the open-code implementation in v3d
with its DRM core equivalent.

Signed-off-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: Melissa Wen <mwen@igalia.com>
Signed-off-by: Melissa Wen <melissa.srw@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221227200010.191351-1-mcanal@igalia.com
18 months agodrm: Replace DRM_DEBUG with drm_dbg_core in file and ioctl handling
Tvrtko Ursulin [Fri, 23 Dec 2022 11:23:02 +0000 (11:23 +0000)]
drm: Replace DRM_DEBUG with drm_dbg_core in file and ioctl handling

Replace the deprecated macro with the per-device one.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Simon Ser <contact@emersion.fr>
Signed-off-by: Simon Ser <contact@emersion.fr>
Link: https://patchwork.freedesktop.org/patch/msgid/20221223112302.320097-1-tvrtko.ursulin@linux.intel.com
18 months agodrm/format-helper: Remove unnecessary conversion helpers
Thomas Zimmermann [Mon, 2 Jan 2023 11:29:27 +0000 (12:29 +0100)]
drm/format-helper: Remove unnecessary conversion helpers

Drivers only emulate XRGB8888 framebuffers. Remove all conversion
helpers that do not use XRGB8888 as their source format. Also remove
some special cases for alpha formats in the blit helper.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230102112927.26565-14-tzimmermann@suse.de
18 months agodrm/format-helper: Simplify drm_fb_build_fourcc_list()
Thomas Zimmermann [Mon, 2 Jan 2023 11:29:26 +0000 (12:29 +0100)]
drm/format-helper: Simplify drm_fb_build_fourcc_list()

The DRM helper drm_fb_build_fourcc_list() creates a list of color
formats for primary planes of the generic drivers. Simplify the helper:

 - It used to mix and filter native and emulated formats as provided
   by the driver. Now the only emulated format is XRGB8888, which is
   required as fallback by legacy software. Drop support for emulating
   any other formats.
 - Also convert alpha formats to their non-alpha counterparts. Generic
   drivers don't support primary planes with alpha formats and some
   DTs incorrectly advertise alpha channels for non-alpha hardware. So
   only export non-alpha formats for primary planes.

With the simplified helper, scrap format lists of the affected generic
drivers. All they need is the firmware buffer's native format, from which
the helper creates the list of color formats.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230102112927.26565-13-tzimmermann@suse.de
18 months agodrm/fb-helper: Fix single-probe color-format selection
Thomas Zimmermann [Mon, 2 Jan 2023 11:29:25 +0000 (12:29 +0100)]
drm/fb-helper: Fix single-probe color-format selection

Fix the color-format selection of the single-probe helper. Go
through all user-specified values and test each for compatibility
with the driver. If none is supported, use the driver-provided
default. This guarantees that the console is always available in
any color format at least.

Until now, the format selection of the single-probe helper tried
to either use a user-specified format or a 32-bit default format.
If the user-specified format was not supported by the driver, the
selection failed and the display remained blank.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230102112927.26565-12-tzimmermann@suse.de
18 months agodrm/fh-helper: Split fbdev single-probe helper
Thomas Zimmermann [Mon, 2 Jan 2023 11:29:24 +0000 (12:29 +0100)]
drm/fh-helper: Split fbdev single-probe helper

Split the single-probe helper's implementation into multiple
functions and get locking and overallocation out of the way of
the surface setup. Simplifies later changes to the setup code.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230102112927.26565-11-tzimmermann@suse.de
18 months agodrm/format-helper: Add conversion from XRGB8888 to 15-bit RGB555 formats
Thomas Zimmermann [Mon, 2 Jan 2023 11:29:23 +0000 (12:29 +0100)]
drm/format-helper: Add conversion from XRGB8888 to 15-bit RGB555 formats

Add conversion from XRGB8888 to XRGB1555, ARGB1555 and RGBA5551, which
are the formats currently supported by the simplefb infrastructure. The
new helpers allow the output of XRGB8888 framebuffers to firmware
scanout buffers in one of the 15-bit formats.

v3:
* use __le* for destination buffers (Jose, kernel test robot)
v2:
* test 15-bit results with local endianness (Jose)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: José Expósito <jose.exposito89@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230102112927.26565-10-tzimmermann@suse.de
18 months agodrm/format-helper: Add conversion from XRGB8888 to ARGB2101010
Thomas Zimmermann [Mon, 2 Jan 2023 11:29:22 +0000 (12:29 +0100)]
drm/format-helper: Add conversion from XRGB8888 to ARGB2101010

Add dedicated helper to convert from XRGB8888 to ARGB2101010. Sets
all alpha bits to make pixels fully opaque.

v2:
* set correct format in struct drm_framebuffer (Javier)
* use cpubuf_to_le32()
* type fixes

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: José Expósito <jose.exposito89@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230102112927.26565-9-tzimmermann@suse.de
18 months agodrm/format-helper: Add conversion from XRGB8888 to ARGB8888
Thomas Zimmermann [Mon, 2 Jan 2023 11:29:21 +0000 (12:29 +0100)]
drm/format-helper: Add conversion from XRGB8888 to ARGB8888

Add dedicated helper to convert from XRGB8888 to ARGB8888. Sets
all alpha bits to make pixels fully opaque.

v3:
* use __le32 for destination buffer (Jose, kernel test robot)
v2:
* use cpubuf_to_le32()
* type fixes

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: José Expósito <jose.exposito89@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230102112927.26565-8-tzimmermann@suse.de
18 months agodrm/format-helper: Flip src/dst-format branches in blit helper
Thomas Zimmermann [Mon, 2 Jan 2023 11:29:20 +0000 (12:29 +0100)]
drm/format-helper: Flip src/dst-format branches in blit helper

Upcoming changes to the format conversion will mostly blit from
XRGB8888 to some other format. So put the source format in blit's
outer branches to make the code more readable. For cases where
a format only changes its endianness, such as XRGB565, introduce
dedicated branches that handle this for all formats.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230102112927.26565-7-tzimmermann@suse.de
18 months agodrm/format-helper: Type fixes in format-helper tests
Thomas Zimmermann [Mon, 2 Jan 2023 11:29:19 +0000 (12:29 +0100)]
drm/format-helper: Type fixes in format-helper tests

Change the source-buffer type of le32buf_to_cpu() to __le32* to
reflect endianness. Result buffers are converted to local endianness,
so instantiate them from regular u8 or u32 types.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: José Expósito <jose.exposito89@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230102112927.26565-6-tzimmermann@suse.de
18 months agodrm/format-helper: Store RGB565 in little-endian order
Thomas Zimmermann [Mon, 2 Jan 2023 11:29:18 +0000 (12:29 +0100)]
drm/format-helper: Store RGB565 in little-endian order

Fix to-RGB565 conversion helpers to store the result in little-
endian byte order. Update test cases as well.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: José Expósito <jose.exposito89@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230102112927.26565-5-tzimmermann@suse.de
18 months agodrm/format-helper: Fix test-input format conversion
Thomas Zimmermann [Mon, 2 Jan 2023 11:29:17 +0000 (12:29 +0100)]
drm/format-helper: Fix test-input format conversion

Convert test input for format helpers from host byte order to
little-endian order. The current code does it the other way around,
but there's no effective difference to the result.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: José Expósito <jose.exposito89@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230102112927.26565-4-tzimmermann@suse.de
18 months agodrm/format-helper: Comment on RGB888 byte order
Thomas Zimmermann [Mon, 2 Jan 2023 11:29:16 +0000 (12:29 +0100)]
drm/format-helper: Comment on RGB888 byte order

RGB888 is different than the other formats as most of its pixels are
unaligned and therefore helper functions do not use endianness conversion
helpers. Comment on this in the source code.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: José Expósito <jose.exposito89@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230102112927.26565-3-tzimmermann@suse.de
18 months agofirmware/sysfb: Fix EFI/VESA format selection
Thomas Zimmermann [Mon, 2 Jan 2023 11:29:15 +0000 (12:29 +0100)]
firmware/sysfb: Fix EFI/VESA format selection

Select color format for EFI/VESA firmware scanout buffer from the
number of bits per pixel and the position of the individual color
components. Fixes the selected format for the buffer in several odd
cases. For example, XRGB1555 has been reported as ARGB1555 because
of the different use of depth and transparency in VESA and Linux.

Bits-per-pixel is always the pixel's raw number of bits; including
alpha and filler bits. It is preferred over color depth, which has a
different meaning among various components and standards.

Also do not compare reserved bits and transparency bits to each other.
These values have different meanings, as reserved bits include filler
bits while transparency does not.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230102112927.26565-2-tzimmermann@suse.de
18 months agodrm/virtio: Spiff out cmd queue/response traces
Rob Clark [Wed, 30 Nov 2022 00:08:41 +0000 (16:08 -0800)]
drm/virtio: Spiff out cmd queue/response traces

Add a sequence # for more easily matching up cmd/resp, and the # of free
slots in the virtqueue to more easily see starvation issues.

v2: Fix handling of string fields as well

Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221130000841.318037-1-robdclark@gmail.com
18 months agodrm/bridge: panel: Set pre_enable_prev_first from drmm_panel_bridge_add
Dave Stevenson [Thu, 22 Dec 2022 18:52:13 +0000 (18:52 +0000)]
drm/bridge: panel: Set pre_enable_prev_first from drmm_panel_bridge_add

Commit 5ea6b1702781 ("drm/panel: Add prepare_prev_first flag to drm_panel")
added code to copy prepare_prev_first from drm_panel to pre_enable_prev_first
in drm_bridge when called through devm_panel_bridge_add, but
missed drmm_panel_bridge_add.

Add the same code to drmm_panel_bridge_add.

Fixes: 5ea6b1702781 ("drm/panel: Add prepare_prev_first flag to drm_panel")
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20221222185213.3773336-1-dave.stevenson@raspberrypi.com
18 months agodrm/vc4: drop all currently held locks if deadlock happens
Maíra Canal [Thu, 29 Dec 2022 19:46:38 +0000 (16:46 -0300)]
drm/vc4: drop all currently held locks if deadlock happens

If vc4_hdmi_reset_link() returns -EDEADLK, it means that a deadlock
happened in the locking context. This situation should be addressed by
dropping all currently held locks and block until the contended lock
becomes available. Currently, vc4 is not dealing with the deadlock
properly, producing the following output when PROVE_LOCKING is enabled:

[  825.612809] ------------[ cut here ]------------
[  825.612852] WARNING: CPU: 1 PID: 116 at drivers/gpu/drm/drm_modeset_lock.c:276 drm_modeset_drop_locks+0x60/0x68 [drm]
[  825.613458] Modules linked in: 8021q mrp garp stp llc
raspberrypi_cpufreq brcmfmac brcmutil crct10dif_ce hci_uart cfg80211
btqca btbcm bluetooth vc4 raspberrypi_hwmon snd_soc_hdmi_codec cec
clk_raspberrypi ecdh_generic drm_display_helper ecc rfkill
drm_dma_helper drm_kms_helper pwm_bcm2835 bcm2835_thermal bcm2835_rng
rng_core i2c_bcm2835 drm fuse ip_tables x_tables ipv6
[  825.613735] CPU: 1 PID: 116 Comm: kworker/1:2 Tainted: G        W 6.1.0-rc6-01399-g941aae326315 #3
[  825.613759] Hardware name: Raspberry Pi 3 Model B Rev 1.2 (DT)
[  825.613777] Workqueue: events output_poll_execute [drm_kms_helper]
[  825.614038] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[  825.614063] pc : drm_modeset_drop_locks+0x60/0x68 [drm]
[  825.614603] lr : drm_helper_probe_detect+0x120/0x1b4 [drm_kms_helper]
[  825.614829] sp : ffff800008313bf0
[  825.614844] x29: ffff800008313bf0 x28: ffffcd7778b8b000 x27: 0000000000000000
[  825.614883] x26: 0000000000000001 x25: 0000000000000001 x24: ffff677cc35c2758
[  825.614920] x23: ffffcd7707d01430 x22: ffffcd7707c3edc7 x21: 0000000000000001
[  825.614958] x20: 0000000000000000 x19: ffff800008313c10 x18: 000000000000b6d3
[  825.614995] x17: ffffcd777835e214 x16: ffffcd7777cef870 x15: fffff81000000000
[  825.615033] x14: 0000000000000000 x13: 0000000000000099 x12: 0000000000000002
[  825.615070] x11: 72917988020af800 x10: 72917988020af800 x9 : 72917988020af800
[  825.615108] x8 : ffff677cc665e0a8 x7 : d00a8c180000110c x6 : ffffcd77774c0054
[  825.615145] x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
[  825.615181] x2 : ffff677cc55e1880 x1 : ffffcd7777cef8ec x0 : ffff800008313c10
[  825.615219] Call trace:
[  825.615232]  drm_modeset_drop_locks+0x60/0x68 [drm]
[  825.615773]  drm_helper_probe_detect+0x120/0x1b4 [drm_kms_helper]
[  825.616003]  output_poll_execute+0xe4/0x224 [drm_kms_helper]
[  825.616233]  process_one_work+0x2b4/0x618
[  825.616264]  worker_thread+0x24c/0x464
[  825.616288]  kthread+0xec/0x110
[  825.616310]  ret_from_fork+0x10/0x20
[  825.616335] irq event stamp: 7634
[  825.616349] hardirqs last  enabled at (7633): [<ffffcd777831ee90>] _raw_spin_unlock_irq+0x3c/0x78
[  825.616384] hardirqs last disabled at (7634): [<ffffcd7778315a78>] __schedule+0x134/0x9f0
[  825.616411] softirqs last  enabled at (7630): [<ffffcd7707aacea0>] local_bh_enable+0x4/0x30 [ipv6]
[  825.617019] softirqs last disabled at (7618): [<ffffcd7707aace70>] local_bh_disable+0x4/0x30 [ipv6]
[  825.617586] ---[ end trace 0000000000000000 ]---

Therefore, deal with the deadlock as suggested by [1], using the
function drm_modeset_backoff().

[1] https://docs.kernel.org/gpu/drm-kms.html?highlight=kms#kms-locking

Fixes: 6bed2ea3cb38 ("drm/vc4: hdmi: Reset link on hotplug")
Reported-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Maíra Canal <mcanal@igalia.com>
Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20221229194638.178712-1-mcanal@igalia.com
18 months agodrm/tiny: ili9486: Do not assume 8-bit only SPI controllers
Carlo Caione [Mon, 19 Dec 2022 09:02:38 +0000 (10:02 +0100)]
drm/tiny: ili9486: Do not assume 8-bit only SPI controllers

The pixel data for the ILI9486 is always 16-bits wide and it must be
sent over the SPI bus. When the controller is only able to deal with
8-bit transfers, this 16-bits data needs to be swapped before the
sending to account for the big endian bus, this is on the contrary not
needed when the SPI controller already supports 16-bits transfers.

The decision about swapping the pixel data or not is taken in the MIPI
DBI code by probing the controller capabilities: if the controller only
suppors 8-bit transfers the data is swapped, otherwise it is not.

This swapping/non-swapping is relying on the assumption that when the
controller does support 16-bit transactions then the data is sent
unswapped in 16-bits-per-word over SPI.

The problem with the ILI9486 driver is that it is forcing 8-bit
transactions also for controllers supporting 16-bits, violating the
assumption and corrupting the pixel data.

Align the driver to what is done in the MIPI DBI code by adjusting the
transfer size to the maximum allowed by the SPI controller.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Reviewed-by: Kamlesh Gurudasani <kamlesh.gurudasani@gmail.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20221116-s905x_spi_ili9486-v4-2-f86b4463b9e4@baylibre.com
18 months agodrm/tiny: ili9486: Enable driver module autoloading
Carlo Caione [Mon, 19 Dec 2022 09:02:37 +0000 (10:02 +0100)]
drm/tiny: ili9486: Enable driver module autoloading

SPI devices use the spi_device_id for module autoloading even on
systems using device tree.

Add the spi_device_id entry to enable autoloading for the 3.5inch RPi
Display (rpi-lcd-35 and piscreen).

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Reviewed-by: Kamlesh Gurudasani <kamlesh.gurudasani@gmail.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20221116-s905x_spi_ili9486-v4-1-f86b4463b9e4@baylibre.com
18 months agodt-bindings: display/panel: Add the Focaltech gpt3
Christophe Branchereau [Mon, 19 Dec 2022 19:52:33 +0000 (20:52 +0100)]
dt-bindings: display/panel: Add the Focaltech gpt3

Add bindings for the Forcaltech gpt3, which is a 640x480 3.0" 4:3
IPS LCD Panel found in the YLM/Anbernic RG300X handheld.

Signed-off-by: Christophe Branchereau <cbranchereau@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20221219195233.375637-3-cbranchereau@gmail.com
18 months agodrm/panel: add the orisetech ota5601a
Christophe Branchereau [Mon, 19 Dec 2022 19:52:32 +0000 (20:52 +0100)]
drm/panel: add the orisetech ota5601a

Add the orisetech ota5601a ic driver

For now it only supports the focaltech gpt3 3" 640x480 ips panel
found in the ylm rg300x handheld.

Signed-off-by: Christophe Branchereau <cbranchereau@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20221219195233.375637-2-cbranchereau@gmail.com
18 months agodrm/todo: update the debugfs clean up task
Maíra Canal [Mon, 19 Dec 2022 12:06:21 +0000 (09:06 -0300)]
drm/todo: update the debugfs clean up task

The structs drm_debugfs_info and drm_debugfs_entry introduced a new
debugfs structure to DRM, centered on drm_device instead of drm_minor.
Therefore, remove the tasks related to create a new device-centered
debugfs structure and add a new task to replace the use of
drm_debugfs_create_files() for the use of drm_debugfs_add_file() and
drm_debugfs_add_files().

Signed-off-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: Melissa Wen <mwen@igalia.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20221219120621.15086-8-mcanal@igalia.com
18 months agodrm/vkms: use new debugfs device-centered functions
Maíra Canal [Mon, 19 Dec 2022 12:06:20 +0000 (09:06 -0300)]
drm/vkms: use new debugfs device-centered functions

Replace the use of drm_debugfs_create_files() with the new
drm_debugfs_add_files() function, which centers the debugfs files
management on the drm_device instead of drm_minor. Moreover, remove the
debugfs_init hook and add the debugfs files directly on vkms_create(),
before drm_dev_register().

Signed-off-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: Melissa Wen <mwen@igalia.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20221219120621.15086-7-mcanal@igalia.com
18 months agodrm/v3d: use new debugfs device-centered functions
Maíra Canal [Mon, 19 Dec 2022 12:06:19 +0000 (09:06 -0300)]
drm/v3d: use new debugfs device-centered functions

Replace the use of drm_debugfs_create_files() with the new
drm_debugfs_add_files() function, which centers the debugfs files
management on the drm_device instead of drm_minor.

Signed-off-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: Melissa Wen <mwen@igalia.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20221219120621.15086-6-mcanal@igalia.com
18 months agodrm/vc4: use new debugfs device-centered functions
Maíra Canal [Mon, 19 Dec 2022 12:06:18 +0000 (09:06 -0300)]
drm/vc4: use new debugfs device-centered functions

Currently, vc4 has its own debugfs infrastructure that adds the debugfs
files on drm_dev_register(). With the introduction of the new debugfs,
functions, replace the vc4 debugfs structure with the DRM debugfs
device-centered function, drm_debugfs_add_file().

Moreover, remove the explicit error handling of debugfs related functions,
considering that the only failure mode is -ENOMEM and also that error
handling is not recommended for debugfs functions, as pointed out in [1].

[1] https://lore.kernel.org/all/YWAmZdRwnAt6wh9B@kroah.com/

Signed-off-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Melissa Wen <mwen@igalia.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20221219120621.15086-5-mcanal@igalia.com
18 months agodrm/debugfs: create debugfs late register functions
Maíra Canal [Mon, 19 Dec 2022 12:06:17 +0000 (09:06 -0300)]
drm/debugfs: create debugfs late register functions

Although the device-centered debugfs functions can track requests for
the addition of DRM debugfs files at any time and have them added all
at once during drm_dev_register(), they are not able to create debugfs
files for modeset components, as they are registered after the primary
and the render drm_minor are registered.

So, create a drm_debugfs_late_register() function, which is responsible
for dealing with the creation of all the debugfs files for modeset
components at once. Therefore, the functions drm_debugfs_add_file()
and drm_debugfs_add_files() can be used in late_register hooks.

Signed-off-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: Melissa Wen <mwen@igalia.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20221219120621.15086-4-mcanal@igalia.com
18 months agodrm: use new debugfs device-centered functions on DRM core files
Maíra Canal [Mon, 19 Dec 2022 12:06:16 +0000 (09:06 -0300)]
drm: use new debugfs device-centered functions on DRM core files

Replace the use of drm_debugfs_create_files() with the new
drm_debugfs_add_files() function in all DRM core files, centering the
debugfs files management on the drm_device instead of drm_minor.

Signed-off-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Melissa Wen <mwen@igalia.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20221219120621.15086-3-mcanal@igalia.com
18 months agodrm/debugfs: create device-centered debugfs functions
Maíra Canal [Mon, 19 Dec 2022 12:06:15 +0000 (09:06 -0300)]
drm/debugfs: create device-centered debugfs functions

Introduce the ability to track requests for the addition of DRM debugfs
files at any time and have them added all at once during
drm_dev_register().

Drivers can add DRM debugfs files to a device-managed list and, during
drm_dev_register(), all added files will be created at once.

Now, the drivers can use the functions drm_debugfs_add_file() and
drm_debugfs_add_files() to create DRM debugfs files instead of using the
drm_debugfs_create_files() function.

Co-developed-by: Wambui Karuga <wambui.karugax@gmail.com>
Signed-off-by: Wambui Karuga <wambui.karugax@gmail.com>
Signed-off-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Melissa Wen <mwen@igalia.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20221219120621.15086-2-mcanal@igalia.com
18 months agodrm/ast: Init iosys_map pointer as I/O memory for damage handling
Thomas Zimmermann [Fri, 16 Dec 2022 19:30:05 +0000 (20:30 +0100)]
drm/ast: Init iosys_map pointer as I/O memory for damage handling

Ast hardware scans out the primary plane from video memory, which
is in I/O-memory space. Hence init the damage handler's iosys_map
pointer as I/O memory.

Not all platforms support accessing I/O memory as system memory,
although it's usually not a problem in ast's x86-based systems.

The error report is at [1].

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Fixes: f2fa5a99ca81 ("drm/ast: Convert ast to SHMEM")
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Jocelyn Falempe <jfalempe@redhat.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: dri-devel@lists.freedesktop.org
Link: https://lore.kernel.org/lkml/202212170111.eInM0unS-lkp@intel.com/T/#u
Link: https://patchwork.freedesktop.org/patch/msgid/20221216193005.30280-1-tzimmermann@suse.de
18 months agodrm/sprd: remove redundant error logging
Deepak R Varma [Sun, 11 Dec 2022 13:55:08 +0000 (19:25 +0530)]
drm/sprd: remove redundant error logging

A call to platform_get_irq() already prints an error on failure within
its own implementation. So printing another error based on its return
value in the caller is redundant and should be removed. The clean up
also makes if condition block braces unnecessary. Remove that as well.

Issue identified using platform_get_irq.cocci coccicheck script.

Signed-off-by: Deepak R Varma <drv@mailo.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/Y5XhPJ39ipMCcctq@qemulion
18 months agodrm/drv: Make use of local variable driver in drm_dev_register()
Uwe Kleine-König [Mon, 19 Dec 2022 18:31:47 +0000 (19:31 +0100)]
drm/drv: Make use of local variable driver in drm_dev_register()

There is a local variable that contains dev->driver. Make use of it
instead of "open coding" it.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20221219183147.1639399-1-u.kleine-koenig@pengutronix.de
18 months agodrm/qxl: stop using ttm_bo_wait
Christian König [Mon, 9 May 2022 08:49:44 +0000 (10:49 +0200)]
drm/qxl: stop using ttm_bo_wait

TTM is just wrapping core DMA functionality here, remove the mid-layer.
No functional change.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221125102137.1801-6-christian.koenig@amd.com
18 months agodrm/v3d: replace obj lookup steps with drm_gem_objects_lookup
Melissa Wen [Mon, 5 Dec 2022 13:55:38 +0000 (12:55 -0100)]
drm/v3d: replace obj lookup steps with drm_gem_objects_lookup

As v3d_lookup_bos() performs the same steps as drm_gem_objects_lookup(),
replace the explicit code in v3d to simply use the DRM function.

Signed-off-by: Melissa Wen <mwen@igalia.com>
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Signed-off-by: Melissa Wen <melissa.srw@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221205135538.3545051-3-mwen@igalia.com
18 months agodrm/v3d: cleanup BOs properly when lookup_bos fails
Melissa Wen [Mon, 5 Dec 2022 13:55:37 +0000 (12:55 -0100)]
drm/v3d: cleanup BOs properly when lookup_bos fails

When v3d_lookup_bos fails to `allocate validated BO pointers`,
job->bo_count was already set to args->bo_count, but job->bo points to
NULL. In this scenario, we must verify that job->bo is not NULL before
iterating on it to proper clean up a job. Also, drm_gem_object_put
already checks that the object passed is not NULL, doing the job->bo[i]
checker redundant.

Signed-off-by: Melissa Wen <mwen@igalia.com>
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Signed-off-by: Melissa Wen <melissa.srw@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221205135538.3545051-2-mwen@igalia.com
19 months agodrm/imx: move IPUv3 driver into separate subdirectory
Lucas Stach [Fri, 25 Nov 2022 11:25:19 +0000 (12:25 +0100)]
drm/imx: move IPUv3 driver into separate subdirectory

The IPUv3 and DCSS driver are two totally separate DRM drivers. Having
one of them live in the drivers/gpu/drm/imx toplevel directory and the
other one in the dcss/ subdirectory is confusing. Move the IPUv3 driver
into its own subdirectory to make the separation more clear.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://lore.kernel.org/r/20221125112519.3849636-1-l.stach@pengutronix.de
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20221125112519.3849636-1-l.stach@pengutronix.de
19 months agodrm/imx: ipuv3-plane: Fix overlay plane width
Philipp Zabel [Tue, 8 Nov 2022 14:14:20 +0000 (15:14 +0100)]
drm/imx: ipuv3-plane: Fix overlay plane width

ipu_src_rect_width() was introduced to support odd screen resolutions
such as 1366x768 by internally rounding up primary plane width to a
multiple of 8 and compensating with reduced horizontal blanking.
This also caused overlay plane width to be rounded up, which was not
intended. Fix overlay plane width by limiting the rounding up to the
primary plane.

drm_rect_width(&new_state->src) >> 16 is the same value as
drm_rect_width(dst) because there is no plane scaling support.

Fixes: 94dfec48fca7 ("drm/imx: Add 8 pixel alignment fix")
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Link: https://lore.kernel.org/r/20221108141420.176696-1-p.zabel@pengutronix.de
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20221108141420.176696-1-p.zabel@pengutronix.de
19 months agogpu: ipu-v3: common: Add of_node_put() for reference returned by of_graph_get_port_by...
Liang He [Wed, 20 Jul 2022 15:22:27 +0000 (23:22 +0800)]
gpu: ipu-v3: common: Add of_node_put() for reference returned by of_graph_get_port_by_id()

In ipu_add_client_devices(), we need to call of_node_put() for
reference returned by of_graph_get_port_by_id() in fail path.

Fixes: 17e052175039 ("gpu: ipu-v3: Do not bail out on missing optional port nodes")
Signed-off-by: Liang He <windhl@126.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://lore.kernel.org/r/20220720152227.1288413-1-windhl@126.com
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220720152227.1288413-1-windhl@126.com
19 months agodrm/omap: dsi: Fix excessive stack usage
Tomi Valkeinen [Fri, 16 Sep 2022 08:22:05 +0000 (11:22 +0300)]
drm/omap: dsi: Fix excessive stack usage

dsi_dump_dsi_irqs(), a function used for debugfs prints, has a large
struct in its frame, which can result in:

drivers/gpu/drm/omapdrm/dss/dsi.c:1126:1: warning: the frame size of 1060 bytes is larger than 1024 bytes [-Wframe-larger-than=]

As the performance of the function is of no concern, let's allocate the
struct with kmalloc instead.

Compile-tested only.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220916082206.167427-1-tomi.valkeinen@ideasonboard.com
19 months agodrm/omapdrm: Remove unused struct csc_coef_rgb2yuv
Yuan Can [Fri, 14 Oct 2022 02:48:10 +0000 (02:48 +0000)]
drm/omapdrm: Remove unused struct csc_coef_rgb2yuv

After commit 64ff18911878, struct csc_coef_rgb2yuv is not used any more
and can be removed as well.

Fixes: 64ff18911878 ("drm/omap: Enable COLOR_ENCODING and COLOR_RANGE properties for planes")
Signed-off-by: Yuan Can <yuancan@huawei.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221014024810.21675-1-yuancan@huawei.com
19 months agodrm: tidss: Fix pixel format definition
Randolph Sapp [Fri, 2 Dec 2022 00:18:03 +0000 (18:18 -0600)]
drm: tidss: Fix pixel format definition

There was a long-standing bug from a typo that created 2 ARGB1555 and
ABGR1555 pixel format entries. Weston 10 has a sanity check that alerted
me to this issue.

According to the Supported Pixel Data formats table we have the later
entries should have been for Alpha-X instead.

Signed-off-by: Randolph Sapp <rs@ti.com>
Fixes: 32a1795f57eecc ("drm/tidss: New driver for TI Keystone platform Display SubSystem")
Reviewed-by: Aradhya Bhatia <a-bhatia1@ti.com>
Acked-by: Andrew Davis <afd@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221202001803.1765805-1-rs@ti.com
19 months agodrm/tidss: Set max DMA segment size
Andrew Davis [Tue, 23 Aug 2022 00:16:34 +0000 (19:16 -0500)]
drm/tidss: Set max DMA segment size

We have no segment size limitations. Set to unlimited.

Signed-off-by: Andrew Davis <afd@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220823001634.11461-1-afd@ti.com
19 months agodrm/display/dp_mst: Fix payload addition on a disconnected sink
Imre Deak [Wed, 14 Dec 2022 18:42:58 +0000 (20:42 +0200)]
drm/display/dp_mst: Fix payload addition on a disconnected sink

If an MST stream is enabled on a disconnected sink, the payload for the
stream is not created and the MST manager's payload count/next start VC
slot is not updated. Since the payload's start VC slot may still contain
a valid value (!= -1) the subsequent disabling of such a stream could
cause an incorrect decrease of the payload count/next start VC slot in
drm_dp_remove_payload() and hence later payload additions will fail.

Fix the above by marking the payload as invalid in the above case, so
that it's skipped during payload removal. While at it add a debug print
for this case.

Cc: Lyude Paul <lyude@redhat.com>
Cc: <stable@vger.kernel.org> # v6.1+
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221214184258.2869417-3-imre.deak@intel.com
19 months agodrm/display/dp_mst: Fix down message handling after a packet reception error
Imre Deak [Wed, 14 Dec 2022 18:42:57 +0000 (20:42 +0200)]
drm/display/dp_mst: Fix down message handling after a packet reception error

After an error during receiving a packet for a multi-packet DP MST
sideband message, the state tracking which packets have been received
already is not reset. This prevents the reception of subsequent down
messages (due to the pending message not yet completed with an
end-of-message-transfer packet).

Fix the above by resetting the reception state after a packet error.

Cc: Lyude Paul <lyude@redhat.com>
Cc: <stable@vger.kernel.org> # v3.17+
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221214184258.2869417-2-imre.deak@intel.com
19 months agodrm/display/dp_mst: Fix down/up message handling after sink disconnect
Imre Deak [Wed, 14 Dec 2022 18:42:56 +0000 (20:42 +0200)]
drm/display/dp_mst: Fix down/up message handling after sink disconnect

If the sink gets disconnected during receiving a multi-packet DP MST AUX
down-reply/up-request sideband message, the state keeping track of which
packets have been received already is not reset. This results in a failed
sanity check for the subsequent message packet received after a sink is
reconnected (due to the pending message not yet completed with an
end-of-message-transfer packet), indicated by the

"sideband msg set header failed"

error.

Fix the above by resetting the up/down message reception state after a
disconnect event.

Cc: Lyude Paul <lyude@redhat.com>
Cc: <stable@vger.kernel.org> # v3.17+
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221214184258.2869417-1-imre.deak@intel.com
19 months agodrm: bridge: it66121: Add support for the IT6610
Paul Cercueil [Wed, 14 Dec 2022 13:01:31 +0000 (14:01 +0100)]
drm: bridge: it66121: Add support for the IT6610

Add support for the IT6610 HDMI encoder.

The hardware is very similar, and therefore the driver did not require
too many changes. Some bits are only available on the IT66121, and
vice-versa. Also, the IT6610 requires specific polarities on the DE and
pixel lines.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20221214130131.12962-1-paul@crapouillou.net