Phil Elwell [Sat, 5 Nov 2022 11:46:08 +0000 (11:46 +0000)]
net: phy: BCM54210PE does not support PTP
BCM54213PE is an Ethernet PHY that supports PTP hardware timestamping.
BCM54210PW ia another Ethernet PHY, but one without PTP support.
Unfortunately the two PHYs return the same ID when queried, so some
extra information is required to determine whether the PHY is PTP-
capable.
There are two Raspberry Pi products that use these PHYs - Pi 4B and
CM4 - and fortunately they use different PHY addresses, so use that as
a differentiator. Choose to treat a PHY with the same ID but another
address as a BCM54210PE, which seems more common.
See: https://github.com/raspberrypi/linux/issues/5104
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Jonathan Bell [Wed, 26 Oct 2022 16:46:44 +0000 (17:46 +0100)]
drivers: dwc_otg: stop GCC from patching FIQ functions
Configuring GCC to use task stack protector canaries means it will
insert calls to check functions in FIQ code. This is bad, as a) the
FIQ's stack is banked and b) the failure invokes __stack_chk_fail which
eventually tries to call printk(). Printing to the console inside the
FIQ is generally fatal.
Add CFLAGS to stop this happening in FIQ code.
Also catch one function where notrace wasn't specified.
Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
Jonathan Bell [Tue, 25 Oct 2022 09:50:10 +0000 (10:50 +0100)]
drivers: usb: dwc_otg: fix reference passing when checking bandwidth
The pointer (struct usb_host_endpoint *)->hcpriv should contain a
reference to dwc_otg_qh_t if the driver has already seen a URB submitted
to this endpoint.
It then checks whether the qh exists and is already in a schedule in
order to decide whether to allocate periodic bandwidth or not. Passing a
pointer to an offset inside of struct usb_host_endpoint instead of just
the pointer means it dereferences bogus addresses.
Rationalise (delete) a variable while we're at it.
See https://github.com/raspberrypi/linux/issues/5189
Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
Dom Cobley [Mon, 24 Oct 2022 12:57:23 +0000 (13:57 +0100)]
media: bcm2835-unicam: Fix up start/stop api change
Signed-off-by: Dom Cobley <popcornmix@gmail.com>
Phil Elwell [Tue, 18 Oct 2022 15:36:47 +0000 (16:36 +0100)]
drm/panel: Rename GEM CMA helpers GEM DMA helpers
As a result of [1], DRM_GEM_CMA_HELPER has been replaced by
DRM_GEM_CMA_HELPER.
[1]
4a83c26a1d87 ("drm/gem: rename GEM CMA helpers to GEM DMA helpers")
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Phil Elwell [Thu, 28 Oct 2021 14:03:16 +0000 (15:03 +0100)]
brcmfmac: Read alternative firmware names from DT
Add the ability to load the names of alternative firmwares from the
Device Tree node. This permits separate firmwares for 43436s and 43438
and allows downstream firmwares to coexist with upstream.
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Naushir Patuck [Fri, 2 Sep 2022 07:35:35 +0000 (08:35 +0100)]
media: bcm2835-unicam: Fix for possible dummy buffer overrun
The Unicam hardware has been observed to cause a buffer overrun when using the
dummy buffer as a circular buffer. The conditions that cause the overrun are not
fully known, but it seems to occur when the memory bus is heavily loaded.
To avoid the overrun, program the hardware with a buffer size of 0 when using
the dummy buffer. This will cause overrun into the allocated dummy buffer, but
avoid out of bounds writes.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Lee Jackson [Fri, 26 Aug 2022 03:41:49 +0000 (11:41 +0800)]
media: i2c: arducam-pivariety: Add custom controls
Add support for strobe_shift, strobe_width and mode custom controls.
Signed-off-by: Lee Jackson <info@arducam.com>
Dave Stevenson [Fri, 29 Jul 2022 16:46:49 +0000 (17:46 +0100)]
media: video-mux: Read CSI2 config from FW, and pass to receiver
There is no obligation for all source devices on a video-mux to
require the same bus configuration, so read the configuration
from the sink ports, and relay via get_mbus_config on the source
port.
If the sources support get_mbus_config, then call that first.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Dom Cobley [Mon, 15 Aug 2022 18:42:38 +0000 (19:42 +0100)]
drm/panel-simple: hack ignore orientation
downstream removal of orientation plus upstream adding of new function
Naushir Patuck [Mon, 8 Aug 2022 09:01:41 +0000 (10:01 +0100)]
media: bcm2835-unicam: Correctly handle FS + FE ISR condtion
If we get a simultaneous FS + FE interrupt for the same frame, it cannot be
marked as completed and returned to userland as the framebuffer will be refilled
by Unicam on the next sensor frame. Additionally, the timestamp will be set to 0
as the FS interrupt handling code will not have run yet.
To avoid these problems, the frame is considered dropped in the FE handler,
and will be returned to userland on the subsequent sensor frame.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Dave Stevenson [Thu, 2 Dec 2021 13:53:36 +0000 (13:53 +0000)]
clk: bcm: rpi: Add the BCM283x pixel clock.
The clk-bcm2835 handling of the pixel clock does not function
correctly when the HDMI power domain is disabled.
The firmware supports it correctly, so add it to the
firmware clock driver.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Jonathan Lemon [Wed, 4 May 2022 21:33:05 +0000 (14:33 -0700)]
Populate phy driver block for BCM54213PE
The BCM54213PE identifier is a RPI-specific addition.
Populate the remainder of the driver functions, including the
required probe routine.
Add a version of bcm54xx_suspend, from upstream.
Signed-off-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Dom Cobley [Wed, 8 Jun 2022 19:49:22 +0000 (20:49 +0100)]
Add HDMI1 facility to the driver.
Also check for which HDMI devices are connected and only create
devices for those that are present.
Signed-off-by: James Hughes <james.hughes@raspberrypi.org>
Signed-off-by: Dom Cobley <popcornmix@gmail.com>
snd_bcm2835: disable HDMI audio when vc4 is used (#3640)
Things don't work too well when both the vc4 driver and the firmware
driver are trying to control the same audio output:
[ 763.569406] bcm2835_audio bcm2835_audio: vchi message timeout, msg=5
Hence, when the vc4 HDMI driver is used, let it control audio. This is done
by introducing a new device tree property to the audio node, and
extending the vc4-kms-v3d overlays to set it appropriately.
Signed-off-by: Hristo Venev <hristo@venev.name>
staging: bcm2835-audio: Add disable-headphones flag
Add a property to allow the headphone output to be disabled. Use an
integer property rather than a boolean so that an overlay can clear it.
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
staging: bcm2835-audio: Find compatible firmware node
Commit "ARM: dts: Adopt the upstream snd_bcm2835 handling" removed the
audio section from the DT and the driver can no longer access the
referenced firmware node 'brcm,firmware'. Fix that by searching for a
compatible firmware node instead, similar to drivers/gpu/drm/vc4.
Fixes:
b9e62329e096 ("ARM: dts: Adopt the upstream snd_bcm2835 handling")
Signed-off-by: Juerg Haefliger <juergh@proton.me>
staging: bcm2835-audio: Fix firmware node refcounting
Decrement firmware node refcounts on all exit paths in set_hdmi_enables().
Signed-off-by: Juerg Haefliger <juergh@proton.me>
staging: bcm2835-audio: Log errors in case of firmware query failures
The driver queries the firmware for the number of detected HDMI displays
and their IDs. Log error messages if queries fail.
Signed-off-by: Juerg Haefliger <juergh@proton.me>
staging: bcm2835-audio: Fix unused enable_hdmi module parameter
The commit "Add HDMI1 facility to the driver." made the enable_hdmi module
parameter unused. Fix that by making it a global switch for all available
HDMI audio outputs.
Fixes:
755f3366084b ("Add HDMI1 facility to the driver.")
Signed-off-by: Juerg Haefliger <juergh@proton.me>
staging: bcm2835-audio: Fix unused enable_headphones module parameter
Since commit "staging: bcm2835-audio: Add disable-headphones flag" the
enabling/disabling of the headphones output is solely determined by the
presence of the DT property 'brcm,disable-headphones' and the
enable_headphones module parameter is unused. Fix that by making it a
global switch.
Fixes:
ee90e47d8824 ("staging: bcm2835-audio: Add disable-headphones flag")
Signed-off-by: Juerg Haefliger <juergh@proton.me>
Lee Jackson [Wed, 18 May 2022 07:18:59 +0000 (15:18 +0800)]
media: i2c: arducam_64mp: Advertise embedded data node on media pad 1
This commit updates the arducam_64mp driver to adverise support for
embedded data streams.
The arducam_64mp sensor subdevice overloads the media pad to differentiate
between image stream (pad 0) and embedded data stream (pad 1) when
performing the v4l2_subdev_pad_ops functions.
Signed-off-by: Lee Jackson <info@arducam.com>
Lee Jackson [Fri, 13 May 2022 09:11:35 +0000 (17:11 +0800)]
media: i2c: Add driver of Arducam 64MP camera
Add a driver for the Arducam 64MP camera sensor.
Whilst the sensor supports 2 or 4 CSI2 data lanes, this driver
currently only supports 2 lanes.
The following Bayer modes are currently available:
9152x6944 10-bit @ 2.7fps
4624x3472 10-bit (binned) @ 10fps
3840x2160 10-bit (cropped/binned) @ 20fps
2312x1736 10-bit (binned) @ 30fps
1920x1080 10-bit (cropped/binned) @ 60fps
1280x720 10-bit (cropped/binned) @ 120fps
Signed-off-by: Lee Jackson <info@arducam.com>
Lee Jackson [Fri, 13 May 2022 09:21:42 +0000 (17:21 +0800)]
media: dt-bindings: media: i2c: Add Arducam 64MP CMOS sensor binding
Add YAML device tree binding for Arducam 64MP CMOS image sensor, and
the relevant MAINTAINERS entries.
Signed-off-by: Lee Jackson <info@arducam.com>
Dom Cobley [Wed, 20 Apr 2022 16:40:47 +0000 (17:40 +0100)]
clk-raspberrypi: Enable minimize for all firmware clocks
Signed-off-by: Dom Cobley <popcornmix@gmail.com>
Dom Cobley [Wed, 20 Apr 2022 17:08:38 +0000 (18:08 +0100)]
drm/v3d: Switch clock setting to new api
Signed-off-by: Dom Cobley <popcornmix@gmail.com>
drm/v3d: Convert to new clock range API
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Jason A. Donenfeld [Tue, 7 Jun 2022 10:02:10 +0000 (12:02 +0200)]
random: do not use jump labels before they are initialized
[ I would like to pursue fixing this more directly first before actually
merging this, but I thought I'd send this to the list now anyway as a
the "backup" plan. If I can't figure out how to make headway on the
main plan in the next few days, it'll be easy to just do this. ]
Stephen reported that a static key warning splat appears during early
boot on systems that credit randomness from device trees that contain an
"rng-seed" property, because because setup_machine_fdt() is called
before jump_label_init() during setup_arch():
static_key_enable_cpuslocked(): static key '0xffffffe51c6fcfc0' used before call to jump_label_init()
WARNING: CPU: 0 PID: 0 at kernel/jump_label.c:166 static_key_enable_cpuslocked+0xb0/0xb8
Modules linked in:
CPU: 0 PID: 0 Comm: swapper Not tainted 5.18.0+ #224
44b43e377bfc84bc99bb5ab885ff694984ee09ff
pstate:
600001c9 (nZCv dAIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : static_key_enable_cpuslocked+0xb0/0xb8
lr : static_key_enable_cpuslocked+0xb0/0xb8
sp :
ffffffe51c393cf0
x29:
ffffffe51c393cf0 x28:
000000008185054c x27:
00000000f1042f10
x26:
0000000000000000 x25:
00000000f10302b2 x24:
0000002513200000
x23:
0000002513200000 x22:
ffffffe51c1c9000 x21:
fffffffdfdc00000
x20:
ffffffe51c2f0831 x19:
ffffffe51c6fcfc0 x18:
00000000ffff1020
x17:
00000000e1e2ac90 x16:
00000000000000e0 x15:
ffffffe51b710708
x14:
0000000000000066 x13:
0000000000000018 x12:
0000000000000000
x11:
0000000000000000 x10:
00000000ffffffff x9 :
0000000000000000
x8 :
0000000000000000 x7 :
61632065726f6665 x6 :
6220646573752027
x5 :
ffffffe51c641d25 x4 :
ffffffe51c13142c x3 :
ffff0a00ffffff05
x2 :
40000000ffffe003 x1 :
00000000000001c0 x0 :
0000000000000065
Call trace:
static_key_enable_cpuslocked+0xb0/0xb8
static_key_enable+0x2c/0x40
crng_set_ready+0x24/0x30
execute_in_process_context+0x80/0x90
_credit_init_bits+0x100/0x154
add_bootloader_randomness+0x64/0x78
early_init_dt_scan_chosen+0x140/0x184
early_init_dt_scan_nodes+0x28/0x4c
early_init_dt_scan+0x40/0x44
setup_machine_fdt+0x7c/0x120
setup_arch+0x74/0x1d8
start_kernel+0x84/0x44c
__primary_switched+0xc0/0xc8
---[ end trace
0000000000000000 ]---
random: crng init done
Machine model: Google Lazor (rev1 - 2) with LTE
A trivial fix went in to address this on arm64,
73e2d827a501 ("arm64:
Initialize jump labels before setup_machine_fdt()"). But it appears that
fixing it on other platforms might not be so trivial. Instead, defer the
setting of the static branch until later in the boot process.
Fixes:
f5bda35fba61 ("random: use static branch for crng_ready()")
Reported-by: Stephen Boyd <swboyd@chromium.org>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Phil Elwell <phil@raspberrypi.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Dave Stevenson [Mon, 16 May 2022 16:33:48 +0000 (17:33 +0100)]
vc04_services: vchiq-mmal: Add defines for mmal_es_format flags
There is a flags field in struct mmal_es_format, but the defines
for what the bits meant weren't included in the headers.
For V4L2_PIX_FMT_NV12_COL128 support we need them, so add them in.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Dave Stevenson [Thu, 12 May 2022 16:42:08 +0000 (17:42 +0100)]
media: i2c: arducam-pivariety: Fixup for mainline API changes
Mainline APIs have changed the way in which the bus flags and
number of active CSI2 data lanes is signalled, so fix the driver
up accordingly.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Phil Elwell [Thu, 12 May 2022 13:32:26 +0000 (14:32 +0100)]
media: i2c: Update irs1125 Kconfig entry
Bring the IRS1125 Kconfig declaration in line with upstream entries.
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Phil Elwell [Thu, 5 May 2022 14:46:07 +0000 (15:46 +0100)]
hwmon: emc2305: fixups for driver submitted to mailing lists
The driver had a number of issues, checkpatch warnings/errors,
and other limitations, so fix these up to make it usable.
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
hwmon: emc2305: Add calls to initialise of cooling maps
Commit
46ef9d4ed26b ("hwmon: emc2305: fixups for driver submitted to
mailing lists") missed adding the call to thermal_of_cooling_device_register
required to configure any cooling maps for the device, hence stopping it
from actually ever changing speed.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
hwmon: emc2305: Change OF properties pwm-min & pwm-max to u8
There is no DT binding for emc2305 as mainline are still
discussing how to do a generic fan binding.
The 5.15 driver was reading the "emc2305," properties
"cooling-levels", "pwm-max", "pwm-min", and "pwm-channel" as u8.
The overlay was writing them as u16 (;) so it was working.
The 6.1 driver was reading as u32, which failed as there is
insufficient data.
As this is all downstream only, revert to u8 to match 5.15.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Michael Shych [Sat, 30 Apr 2022 11:49:04 +0000 (14:49 +0300)]
dt-bindings: hwmon: add microchip,emc2305.yaml dt binding description.
Submitted to linux-hwmon mailing list at
https://patchwork.kernel.org/project/linux-hwmon/patch/
20220430114905.53448-3-michaelsh@nvidia.com/
Add basic description of emc2305 driver device tree binding.
Signed-off-by: Michael Shych <michaelsh@nvidia.com>
Reviewed-by: Vadim Pasternak <vadimp@nvidia.com>
dtbindings: Fixup microchip,emc2305.yaml bindings
The bindings submitted to mainline had some issues, so fix them up.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Dave Stevenson [Fri, 6 May 2022 14:34:44 +0000 (15:34 +0100)]
thermal: broadcom: Use dev_err_probe to suppress defer errors
It is quite common for the devm_thermal_zone_of_sensor_register
to need to defer, so avoid spamming the log by using
dev_err_probe instead of dev_err.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Lee Jackson [Thu, 14 Apr 2022 09:31:01 +0000 (17:31 +0800)]
media: i2c: Add driver of Arducam Pivariety series camera
Add a driver for the Arducam Pivariety series CSI2 camera sensor.
Signed-off-by: Lee Jackson <info@arducam.com>
SQUASH: Fix VIDEO_ARDUCAM_PIVARIETY Kconfig entry
The cherry-pick from rpi-5.17.y put it in the wrong section, and failed
to update it for 5.18.
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Lee Jackson [Thu, 21 Apr 2022 06:18:44 +0000 (14:18 +0800)]
media: dt-bindings: media: i2c: Add Arducam Pivariety Series CMOS sensor binding
Add YAML device tree binding for Arducam Pivariety CMOS image sensor, and
the relevant MAINTAINERS entries.
Signed-off-by: Lee Jackson <info@arducam.com>
Lee Jackson [Thu, 21 Apr 2022 06:14:29 +0000 (14:14 +0800)]
dt-bindings: vendor-prefixes: Add Arducam
Add vendor prefix for Arducam (https://arducam.com).
Signed-off-by: Lee Jackson <info@arducam.com>
Phil Elwell [Fri, 29 Apr 2022 08:19:10 +0000 (09:19 +0100)]
staging: vchiq_arm: Add log_level module params
Add module parameters to control the logging levels for the various
vchiq logging categories.
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Scovotto Davide [Wed, 20 Apr 2022 15:22:17 +0000 (17:22 +0200)]
tpm_tis_spi_main: Force probe routine to run synchronously with driver and device registration when IMA is enabled
Co-authored-by: Alberto Solavagione <albertosolavagione30@gmail.com>
Co-developed-by: Alberto Solavagione <albertosolavagione30@gmail.com>
Signed-off-by: Alberto Solavagione <albertosolavagione30@gmail.com>
Signed-off-by: Davide Scovotto <scovottodavide@gmail.com>
Alberto Solavagione [Wed, 20 Apr 2022 15:15:42 +0000 (17:15 +0200)]
clk-bcm2835: use subsys_initcall for the clock driver when IMA is enabled
Co-authored-by: Davide Scovotto <scovottodavide@gmail.com>
Co-developed-by: Davide Scovotto <scovottodavide@gmail.com>
Signed-off-by: Davide Scovotto <scovottodavide@gmail.com>
Signed-off-by: Alberto Solavagione <albertosolavagione30@gmail.com>
Dave Stevenson [Thu, 31 Mar 2022 11:05:04 +0000 (12:05 +0100)]
drm/panel: panel-ilitek9881c: Add prepare_upstream_first flag
The panel sends MIPI DCS commands during prepare and is expecting
the bus to remain in LP-11 state in-between.
Set the prepare_upstream_first flag so that the upstream DSI host
is prepared / pre_enabled first, and therefore the bus is in a
defined state.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Dave Stevenson [Thu, 31 Mar 2022 11:03:36 +0000 (12:03 +0100)]
drm/panel: ilitek-ili9881c: Clean up on mipi_dsi_attach failure
mipi_dsi_attach is allowed to fail, and currently the probe
code doesn't clean up (mainly drm_panel_remove) if this happens.
Add cleanup code on failure.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Phil Elwell [Wed, 30 Mar 2022 08:48:41 +0000 (09:48 +0100)]
pinctrl: bcm2835: Only return non-GPIOs to inputs
Allowing GPIO state to persist allows the use of gpioset to control
GPIO levels without having to use the --mode=wait feature.
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
David Plowman [Tue, 29 Mar 2022 15:10:06 +0000 (16:10 +0100)]
mm,page_alloc,cma: introduce a customisable threshold for allocating pages in cma
On some platforms the cma area can be half the entire system memory,
meaning that allocations start happening in the cma area immediately.
This leads to fragmentation and subsequent fatal cma_alloc failures.
We introduce an "alloc_in_cma_threshold" parameter which requires that
this many sixteenths of the free pages must be in cma before it will
try to use them. By default this is set to 12, but the previous
behaviour can be restored by setting it to 8 on startup.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Naushir Patuck [Tue, 22 Mar 2022 15:16:40 +0000 (15:16 +0000)]
drivers: staging: bcm2835-isp: Clear LS table handle in the firmware
When all nodes have stopped streaming, ensure the firmware has released its
handle on the LS table dmabuf. This is done by passing a null handle in the
LS params.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Dave Stevenson [Thu, 17 Mar 2022 15:13:10 +0000 (15:13 +0000)]
media: i2c: Rename ad5398 to ad5398_vcm
There's already a regulator module called ad5398 that exposes
this device through the regulator API. That is meaningless in
the terms that it uses and how it maps to V4L2, so a new driver
was added. However the module name collision wasn't noted, so
rename it now.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Dave Stevenson [Wed, 16 Mar 2022 12:15:41 +0000 (12:15 +0000)]
media: i2c: ov5647: Use v4l2_async_register_subdev_sensor for lens binding
v4l2_async_register_subdev doesn't bind in lens or flash drivers,
but v4l2_async_register_subdev_sensor does.
Switch to using v4l2_async_register_subdev_sensor.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Dave Stevenson [Wed, 29 Sep 2021 13:04:28 +0000 (14:04 +0100)]
media: i2c: Add driver for AD5398 VCM lens driver
Adds a driver for the Analog Devices AD5398 10 bit
I2C DAC which is commonly used for driving VCM lens
mechanisms.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Dave Stevenson [Wed, 29 Sep 2021 11:33:35 +0000 (12:33 +0100)]
dt-bindings: media: i2c: Add binding for ad5398 VCM
Add a binding for Analog Devices AD5398 10bit current
sinking DAC when used as a lens VCM driver.
FIXME: Convert to YAML
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Naushir Patuck [Thu, 3 Mar 2022 16:45:53 +0000 (16:45 +0000)]
drivers: staging: bcm2835-isp: Do not cleanup mmal vcsm buffer on stop_streaming
On stop_streaming() the vcsm buffer handle gets released by the buffer cleanup
code. This will subsequently cause and error if userland re-queues the same
buffer on the next start_streaming() call.
Remove this cleanup code and rely on the vb2_ops->buf_cleanup() call to do the
cleanups instead.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
David Plowman [Wed, 2 Mar 2022 16:47:37 +0000 (16:47 +0000)]
staging: vc04_services: isp: Permit all sRGB colour spaces on ISP outputs
ISP outputs actually support all colour spaces that are fundamentally
sRGB underneath, regardless of whether an RGB or YUV output format is
actually requested.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Dave Stevenson [Fri, 25 Feb 2022 18:16:13 +0000 (18:16 +0000)]
media/i2c: Add driver for Omnivision OV2311
Omnivision OV2311 is a CSI2 1600x1300 global shutter image sensor.
Add a driver for it.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
media: i2c: Update ov2311 Kconfig entry
Bring the OV2311 Kconfig declaration in line with upstream entries.
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
media: i2c: ov2311: Fix uninitialized variable usage
Signed-off-by: Alexander Winkowski <dereference23@outlook.com>
Dave Stevenson [Thu, 17 Feb 2022 14:48:30 +0000 (14:48 +0000)]
media: i2c: ov7251: Reinstate setting ov7251_global_init_setting
"media: i2c: Remove .s_power() from ov7251" removed the call that
sent ov7251_global_init_setting to the sensor. Send it when starting
streaming.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Dave Stevenson [Fri, 4 Feb 2022 16:12:35 +0000 (16:12 +0000)]
media: bcm2835-unicam: Handle a repeated frame start with no end
In the case of 2 frame starts being received with no frame end
between, the queued buffer held in next_frm was lost as the
pointer was overwritten with the dummy buffer.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Phil Elwell [Wed, 12 Jan 2022 08:23:28 +0000 (08:23 +0000)]
spi: gpio: Add sck-idle-input property
The sck-idle-input property indicates that the spi-gpio driver should
return the SCK line to an input when the chip select signals are
inactive.
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Phil Elwell [Fri, 4 Feb 2022 11:33:28 +0000 (11:33 +0000)]
bindings: Add sck-idle-input to spi-gpio
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Dave Stevenson [Wed, 26 Jan 2022 16:02:31 +0000 (16:02 +0000)]
drm/panel: Add panel driver for TDO Y17B based panels
The Top DisplayOptoelectronics (TDO) T17B driver chip is used
in the TL040HDS20CT panel (found in the Pimoroni HyperPixel4
Square display) and potentially other displays.
The driver chip supports SPI for configuration and DPI
video data.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Dave Stevenson [Wed, 5 Jan 2022 19:14:48 +0000 (19:14 +0000)]
drm/panel: Add panel driver for Ilitek ILI9806E panel
The Ilitek ILI9806E driver is used in the Pimoroni HyperPixel4
and potentially other displays. Whilst it can support multiple
interfaces, this driver only accounts for SPI configuration and
DPI video data.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Dave Stevenson [Tue, 1 Feb 2022 12:24:51 +0000 (12:24 +0000)]
drm/panel: simple: Remove custom handling of orientation
Panel orientation is now handled by the drm_panel and
panel_bridge frameworks, so remove the custom handling.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Chris Morgan [Fri, 28 Jan 2022 23:42:12 +0000 (17:42 -0600)]
drm/panel: simple: add Geekworm MZP280 Panel
Add support for the Geekworm MZP280 Panel
Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Acked-by: Maxime Ripard <maxime@cerno.tech>
Chris Morgan [Fri, 28 Jan 2022 23:41:18 +0000 (17:41 -0600)]
dt-bindings: display: simple: add Geekworm MZP280 Panel
The Geekworm MZP280 panel is a 480x640 (portrait) panel with a
capacitive touch interface and a 40 pin header meant to interface
directly with the Raspberry Pi. The screen is 2.8 inches diagonally,
and there appear to be at least 4 distinct versions all with the same
panel timings.
Timings were derived from drivers posted on the github located here:
https://github.com/tianyoujian/MZDPI/tree/master/vga
Additional details about this panel family can be found here:
https://wiki.geekworm.com/2.8_inch_Touch_Screen_for_Pi_zero
Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Chris Morgan [Fri, 28 Jan 2022 23:40:50 +0000 (17:40 -0600)]
dt-bindings: vendor-prefixes: Add Geekworm
Add vendor prefix for Geekworm (https://geekworm.com).
Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Chris Morgan [Fri, 28 Jan 2022 23:37:43 +0000 (17:37 -0600)]
media: uapi: Document format MEDIA_BUS_FMT_RGB565_1X24_CPADHI
Add support for MEDIA_BUS_FMT_RGB565_1X24_CPADHI. This format is used
by the Geekworm MZP280 panel which interfaces with the Raspberry Pi.
Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
tiagofreire-pt [Sat, 29 Jan 2022 10:01:36 +0000 (10:01 +0000)]
Patching lan78xx for SOF_TIMESTAMPING_TX_SOFTWARE support
Alex Crawford [Fri, 28 Jan 2022 21:36:51 +0000 (13:36 -0800)]
i2c: bcm2835: Make clock-stretch timeout configurable
The default clock-stretch timeout is 35 mS, which works well for
SMBus, but there are some I2C devices which can stretch the clock even
longer. Rather than trying to prescribe a safe default for everyone,
allow the timeout to be configured.
Signed-off-by: Alex Crawford <raspberrypi/linux@code.acrawford.com>
Nathan Chancellor [Tue, 1 Feb 2022 00:23:38 +0000 (17:23 -0700)]
media: bcm2835-unicam: Set ret on error path in unicam_async_complete()
Clang warns:
drivers/media/platform/bcm2835/bcm2835-unicam.c:3109:6: warning: variable 'ret' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized]
if (!source_pads) {
^~~~~~~~~~~~
drivers/media/platform/bcm2835/bcm2835-unicam.c:3152:9: note: uninitialized use occurs here
return ret;
^~~
drivers/media/platform/bcm2835/bcm2835-unicam.c:3109:2: note: remove the 'if' if its condition is always false
if (!source_pads) {
^~~~~~~~~~~~~~~~~~~
drivers/media/platform/bcm2835/bcm2835-unicam.c:3091:9: note: initialize the variable 'ret' to silence this warning
int ret;
^
= 0
1 warning generated.
When the if condition is true, ret will be used uninitialized, which
could result in undesirable behavior. Set ret to -ENODEV on the error
path, which is a standard error code for the ->complete() callback.
Fixes:
d056e86eb35f ("media/bcm2835-unicam: Parse pad numbers correctly")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Dom Cobley [Tue, 12 Sep 2023 19:11:26 +0000 (20:11 +0100)]
Extending ili9881c driver support for nwe080 panel
Signed-off-by: Penk Chen <penk@cutiepi.io>
Naushir Patuck [Tue, 18 Jan 2022 13:13:14 +0000 (13:13 +0000)]
drivers: bcm2835_unicam: Disable trigger mode operation
On a Pi3 B/B+ platform the imx219 sensor frequently generates a single corrupt
frame when the sensor first starts. This can either be a missing line, or
invalid samples within the line. This only occurrs using the Unicam kernel
driver.
Disabling trigger mode elimiates this corruption. Since trigger mode is a
legacy feature copied from the firmware driver and not expected to be needed,
remove it. Tested on the Raspberry Pi cameras and shows no ill effects.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Dave Stevenson [Thu, 20 Jan 2022 15:50:27 +0000 (15:50 +0000)]
power: rpi-poe: Add option of being created by MFD or FW
The firmware can only use I2C0 if the kernel isn't, therefore
with libcamera and DRM using it the PoE HAT fan control needs
to move to the kernel.
Add the option for the driver to be created by the PoE HAT core
MFD driver, and use the I2C regmap that provides to control fan
functions.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Dave Stevenson [Thu, 20 Jan 2022 15:48:03 +0000 (15:48 +0000)]
power: rpi-poe: Drop CURRENT_AVG as it is not hardware averaged
As documented the _AVG parameters are meant to be hardware
averaged, but the implementation for the PoE+ HAT was done in
software in the firmware.
Drop the property.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Dave Stevenson [Wed, 19 Jan 2022 17:26:22 +0000 (17:26 +0000)]
pwm: raspberrypi-poe: Add option of being created by MFD or FW
The firmware can only use I2C0 if the kernel isn't, therefore
with libcamera and DRM using it the PoE HAT fan control needs
to move to the kernel.
Add the option for the driver to be created by the PoE HAT core
MFD driver, and use the I2C regmap that provides to control fan
functions.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Dave Stevenson [Wed, 19 Jan 2022 17:22:57 +0000 (17:22 +0000)]
mfd: simple-mfd-i2c: Add configuration for RPi POE HAT
The Raspbery Pi PoE+ HAT exposes a fan controller and power
supply status reporting via a single I2C address.
Create an MFD device that allows loading of the relevant
sub-drivers, with a shared I2C regmap.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Padmanabha Srinivasaiah [Thu, 30 Dec 2021 20:45:10 +0000 (21:45 +0100)]
bcm2835-v4l2-isp: Add missing lock initialization
ISP device allocation is dynamic hence the locks too.
struct mutex queue_lock is not initialized which result in bug.
Fixing same by initializing it.
[ 29.847138] INFO: trying to register non-static key.
[ 29.847156] The code is fine but needs lockdep annotation, or maybe
[ 29.847159] you didn't initialize this object before use?
[ 29.847161] turning off the locking correctness validator.
[ 29.847167] CPU: 1 PID: 343 Comm: v4l_id Tainted: G C 5.15.11-rt24-v8+ #8
[ 29.847187] Hardware name: Raspberry Pi 4 Model B Rev 1.4 (DT)
[ 29.847194] Call trace:
[ 29.847197] dump_backtrace+0x0/0x1b8
[ 29.847227] show_stack+0x20/0x30
[ 29.847240] dump_stack_lvl+0x8c/0xb8
[ 29.847254] dump_stack+0x18/0x34
[ 29.847263] register_lock_class+0x494/0x4a0
[ 29.847278] __lock_acquire+0x80/0x1680
[ 29.847289] lock_acquire+0x214/0x3a0
[ 29.847300] mutex_lock_nested+0x70/0xc8
[ 29.847312] _vb2_fop_release+0x3c/0xa8 [videobuf2_v4l2]
[ 29.847346] vb2_fop_release+0x34/0x60 [videobuf2_v4l2]
[ 29.847367] v4l2_release+0xc8/0x108 [videodev]
[ 29.847453] __fput+0x8c/0x258
[ 29.847476] ____fput+0x18/0x28
[ 29.847487] task_work_run+0x98/0x180
[ 29.847502] do_notify_resume+0x228/0x3f8
[ 29.847515] el0_svc+0xec/0xf0
[ 29.847523] el0t_64_sync_handler+0x90/0xb8
[ 29.847531] el0t_64_sync+0x180/0x184
Signed-off-by: Padmanabha Srinivasaiah <treasure4paddy@gmail.com>
Dave Stevenson [Tue, 4 Jan 2022 13:56:42 +0000 (13:56 +0000)]
uapi/v4l2-controls: Reset V4L2_CID_USER_BCM2835_ISP_BASE to same as 5.10
https://github.com/raspberrypi/linux/issues/4440
Upstream has added additional device specific controls, so the
V4L2_CID_USER_BASE + 0x10e0 value that had been defined for use with
the ISP has been taken by something else (and +0x10f0 has been used as
well)
Duplicate the use on V4L2_CID_USER_BASE + 0x10e0 so that userspace
(libcamera) doesn't need to change. Once the driver is upstream, then
we'll update libcamera to adopt the new value as it then won't change.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Phil Elwell [Thu, 16 Dec 2021 16:25:00 +0000 (16:25 +0000)]
staging/bcm2835-isp: Fix cleanup after init fail
bcm2835_isp_remove is called on an initialisation failure, but at that
point the drvdata hasn't been set. This causes a crash when e.g. using
the cutdown firmware (gpu_mem=16).
Move platform_set_drvdata before the instance probing loop to avoid the
problem.
See: https://github.com/raspberrypi/linux/issues/4774
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Dave Stevenson [Tue, 14 Dec 2021 17:18:49 +0000 (17:18 +0000)]
media: i2c: ov7251: Make the enable GPIO optional.
Not all implementations wire up the enable GPIO and may just tie
it to a supply rail.
Make it optional.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Dave Stevenson [Mon, 22 Nov 2021 12:31:35 +0000 (12:31 +0000)]
media: i2c: ov5647: Add support for regulator control.
The driver supported using GPIOs to control the shutdown line,
but no regulator control.
Add regulator hooks.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Dave Stevenson [Thu, 2 Dec 2021 18:16:21 +0000 (18:16 +0000)]
drm/panel-simple: Allow the bus format to be read from DT for panel-dpi
The "panel-dpi" compatible string configures panel from device tree,
but it doesn't provide any way of configuring the bus format (colour
representation), nor does it populate it.
Add a DT parameter "bus-format" that allows the MEDIA_BUS_FMT_xxx value
to be specified from device tree.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Dave Stevenson [Thu, 2 Dec 2021 18:10:55 +0000 (18:10 +0000)]
drm/panel-simple: Populate bpc when using panel-dpi
panel-dpi doesn't know the bit depth, so in the same way that
DPI is guessed for the connector type, guess that it'll be 8bpc.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Phil Elwell [Mon, 29 Oct 2018 14:45:45 +0000 (14:45 +0000)]
rtc: pcf8523: Fix oscillator stop bit handling
See: https://github.com/raspberrypi/firmware/issues/1065
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Dave Stevenson [Mon, 29 Nov 2021 18:31:37 +0000 (18:31 +0000)]
regulator/rpi-panel-attiny: Don't read the LCD power status
The I2C to the Atmel is very fussy, and locks up easily on
Pi0-3 particularly on reads.
The LCD power status is controlled solely by this driver, so
rather than reading it back from the Atmel, use the cached
status last set.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Naushir Patuck [Tue, 30 Nov 2021 10:39:41 +0000 (10:39 +0000)]
drivers: bcm2835_unicam: Add logging message when a frame is dropped.
If a dummy buffer is still active on a frame start, it indicates that this frame
will be dropped. The explicit logging helps users identify performance issues.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Phil Elwell [Mon, 29 Nov 2021 12:14:49 +0000 (12:14 +0000)]
spi: spidev: Restore loading from Device Tree
As happens occasionally, an upstream change has once again prevented
spidev from being loaded via Device Tree. We now need "spidev" to be
included in the new spi_device_id list, otherwise although the
spidev driver gets loaded no /dev/spidev*.* entries will appear.
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Naushir Patuck [Thu, 25 Nov 2021 08:59:58 +0000 (08:59 +0000)]
drivers: bcm2835_isp: Fix div by 0 bug.
Fix a possible division by 0 bug when setting up the mmal port for the stats
port.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Naushir Patuck [Tue, 16 Nov 2021 12:38:44 +0000 (12:38 +0000)]
drivers: bcm2835_isp: Allow multiple users for the ISP driver.
Add a second (identical) set of device nodes to allow concurrent use of the ISP
hardware by another user. This change effectively creates a second state
structure (struct bcm2835_isp_dev) to maintain independent state for the second
user. Node and media entity names are appened with the instance index
appropriately.
Further users can be added by changing the BCM2835_ISP_NUM_INSTANCES define.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
David Plowman [Mon, 22 Nov 2021 13:10:39 +0000 (13:10 +0000)]
media: i2c: ov5647: Support HFLIP and VFLIP
Add these missing V4L2 controls. Tested binned and full resolution
modes in all four orientations using Raspberry Pi running libcamera.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Phil Elwell [Tue, 2 Nov 2021 11:13:42 +0000 (11:13 +0000)]
brcmfmac: Don't promote INFO logging to ERR
An unwanted side effect of enabling the BRCMDBG config setting is
redefining brcmf_info to be brcmf_err. This can be alarming to users
and makes it harder to spot real errors, so don't do it.
See: https://github.com/raspberrypi/linux/issues/4663
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Gergo Koteles [Sun, 24 Oct 2021 21:18:09 +0000 (23:18 +0200)]
staging/bcm2835-camera: Add support for MPEG_VIDEO_FORCE_KEY_FRAME
Signed-off-by: Gergo Koteles <soyer@irl.hu>
soyer [Sat, 23 Oct 2021 10:23:50 +0000 (12:23 +0200)]
staging/bcm2835-camera: Add support for H264_MIN_QP, H264_MAX_QP
Signed-off-by: Gergo Koteles <soyer@irl.hu>
Dave Stevenson [Fri, 15 Oct 2021 16:57:27 +0000 (17:57 +0100)]
media/bcm2835-unicam: Add support for configuration via MC API
Adds Media Controller API support for more complex pipelines.
libcamera is about to switch to using this mechanism for configuring
sensors.
This can be enabled by either a module parameter, or device tree.
Various functions have been moved to group video-centric and
mc-centric functions together.
Based on a similar conversion done to ti-vpe.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
media: bcm2835-unicam: Fixup for 5.18 and new get_mbus_config struct
The number of active CSI2 data lanes has moved within the struct
v4l2_mbus_config used by the get_mbus_config API call.
Update the driver to match the changes in mainline.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Dave Stevenson [Wed, 23 Sep 2020 14:16:18 +0000 (15:16 +0100)]
media/bcm2835-unicam: Parse pad numbers correctly
The driver was making big assumptions about the source device
using pad 0 and 1, which doesn't follow for more complex
devices where Unicam's source device may be a sink device for
something else.
Read the pad numbers through media controller, and reference
them appropriately.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
David Plowman [Thu, 21 Oct 2021 13:49:15 +0000 (14:49 +0100)]
vc04_services: isp: Report input node as wanting full range RAW color space
RAW color spaces are more usually reported as having full range
quantization.
Tested using libcamera.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
David Plowman [Thu, 21 Oct 2021 13:47:00 +0000 (14:47 +0100)]
media: i2c: ov5647: Sensor should report RAW color space
Tested on Raspberry Pi running libcamera.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Dave Stevenson [Thu, 14 Oct 2021 10:09:18 +0000 (11:09 +0100)]
drivers/gpio: Add a driver that wraps the PWM API as a GPIO controller
For cases where spare PWM outputs are available, but are desired
to be addressed a standard outputs instead.
Wraps a PWM channel as a new GPIO chip with the one output.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Dave Stevenson [Tue, 21 Sep 2021 16:17:57 +0000 (17:17 +0100)]
staging: mmal-vchiq: Reset buffers_with_vpu on port_enable
Should we go through the timeout failure case with port_disable
not returning all buffers for whatever reason, the
buffers_with_vpu counter gets left at a non-zero value, which
will cause reference counting issues should the instance be
reused.
Reset the count when the port is enabled again, but before
any buffers have been sent to the VPU.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Dave Stevenson [Wed, 15 Sep 2021 16:54:11 +0000 (17:54 +0100)]
staging/mmal-vchiq: Add module parameter to enable logging.
Adds a module parameter "debug" to enable various logging levels.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Serge Schneider [Mon, 2 Dec 2019 14:48:05 +0000 (14:48 +0000)]
Add Raspberry Pi PoE+ HAT support
Signed-off-by: Serge Schneider <serge@raspberrypi.com>
Dave Stevenson [Fri, 6 Aug 2021 14:44:21 +0000 (15:44 +0100)]
staging/vchiq-mmal: Add the deinterlace image effects enums
As we're wanting to wrap the image_fx component for deinterlacing,
add the deinterlace algorithm values to enum mmal_parameter_imagefx
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Dave Stevenson [Thu, 5 Aug 2021 15:38:34 +0000 (16:38 +0100)]
staging/vchiq-mmal: Add parameters for interlaced video support
Adds enum mmal_interlace_type and struct
mmal_parameter_video_interlace_type to allow for querying the
interlacing mode on decoders.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Dave Stevenson [Sun, 10 Jan 2021 19:05:17 +0000 (19:05 +0000)]
staging/vchiq-mmal: Add buffer flags for interlaced video
Add the buffer flags that the firmware uses to identify fields
on interlaced video
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Dave Stevenson [Wed, 8 Sep 2021 13:46:17 +0000 (14:46 +0100)]
Input: edt-ft54x6: Clean up timer and workqueue on remove
If no interrupt is defined then a timer and workqueue are used
to poll the controller.
On remove these were not being cleaned up correctly.
Fixes:
ca61fdaba79f "Input: edt-ft5x06: Poll the device if no interrupt is
configured."
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Dave Stevenson [Fri, 26 Mar 2021 17:06:36 +0000 (17:06 +0000)]
drm/panel-simple: Add a timing for the Raspberry Pi 7" panel
The Raspberry Pi 7" 800x480 panel uses a Toshiba TC358762 DSI
to DPI bridge chip, so there is a requirement for the timings
to be specified for the end panel. Add such a definition.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Dave Stevenson [Wed, 8 Sep 2021 13:21:38 +0000 (14:21 +0100)]
drm/panel/raspberrypi-touchscreen: Handle I2C errors.
rpi_touchscreen_i2c_read returns any errors from i2c_transfer,
or the 8 bit received value.
Check for error values before trying to process the data as
valid.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
detule [Tue, 2 Oct 2018 08:10:08 +0000 (04:10 -0400)]
staging: vchiq_arm: Usa a DMA pool for small bulks
During a bulk transfer we request a DMA allocation to hold the
scatter-gather list. Most of the time, this allocation is small
(<< PAGE_SIZE), however it can be requested at a high enough frequency
to cause fragmentation and/or stress the CMA allocator (think time
spent in compaction here, or during allocations elsewhere).
Implement a pool to serve up small DMA allocations, falling back
to a coherent allocation if the request is greater than
VCHIQ_DMA_POOL_SIZE.
Signed-off-by: Oliver Gjoneski <ogjoneski@gmail.com>
Phil Elwell [Tue, 21 Jul 2020 16:34:09 +0000 (17:34 +0100)]
staging: vchiq_arm: children inherit DMA config
Although it is no longer necessary for vchiq's children to have a
different DMA configuration to the parent, they do still need to
explicitly to have their DMA configuration set - to be that of the
parent.
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Phil Elwell [Thu, 1 Nov 2018 17:31:37 +0000 (17:31 +0000)]
staging: vchiq_arm: Add 36-bit address support
Conditional on a new compatible string, change the pagelist encoding
such that the top 24 bits are the pfn, leaving 8 bits for run length
(-1), giving a 36-bit address range.
Manage the split between addresses for the VPU and addresses for the
40-bit DMA controller with a dedicated DMA device pointer that on non-
BCM2711 platforms is the same as the main VCHIQ device. This allows
the VCHIQ node to stay in the usual place in the DT.
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Dave Stevenson [Tue, 3 Aug 2021 10:33:33 +0000 (11:33 +0100)]
media: i2c: ov7251: Add fwnode properties controls
Add call to v4l2_ctrl_new_fwnode_properties to read and
create the fwnode based controls.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Jakub Vaněk [Wed, 7 Jul 2021 20:48:20 +0000 (22:48 +0200)]
media: bcm2835-unicam: Forward input status from subdevice
The vidioc_enum_input() v4l2 ioctl is capable of returning
sensor/input status as well. This is used in current
GStreamer HEAD for signal detection [1].
bcm2835-unicam does handle this syscall, but it didn't ask
the subdevice driver about the input status. The input then
appeared as always present.
This commit adds the necessary query. There is a precedent for
this - the R-Car VIN V4L2 driver does a similar call [2].
[1]: https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/-/blob/
ce0be27caf69aa9d96b73bc2b50737451b6f6936/sys/v4l2/gstv4l2src.c#L553
[2]: https://github.com/raspberrypi/linux/blob/
7fb9d006d3ff3baf2e205e0c85c4e4fd0a64fcd0/drivers/media/platform/rcar-vin/rcar-v4l2.c#L548
Signed-off-by: Jakub Vaněk <linuxtardis@gmail.com>