platform/kernel/linux-rpi.git
8 months agommc: brcmstb: add support for BCM2712
Ulf Hansson [Thu, 29 Oct 2020 01:57:16 +0000 (09:57 +0800)]
mmc: brcmstb: add support for BCM2712

BCM2712 has an SD Express capable SDHCI implementation and uses
the SDIO CFG register block present on other STB chips.

Add plumbing for SD Express handover and BCM2712-specific functions.

Due to the common bus infrastructure between BCM2711 and BCM2712,
the driver also needs to implement 32-bit IO accessors.

mmc: brcmstb: override card presence if broken-cd is set

Not just if the card is declared as nonremovable.

sdhci: brcmstb: align SD express switchover with SD spec v8.00

Part 1 of the Physical specification, figure 3-24, details the switch
sequence for cards initially probed as SD. Add a missing check for DAT2
level after switching VDD2 on.

sdhci: brcmstb: clean up SD Express probe and error handling

Refactor to avoid spurious error messages in dmesg if the requisite SD
Express DT nodes aren't present.

Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
mmc: sdhci-brcmstb: only use the delay line PHY for tuneable speeds

The MMC core has a 200MHz core clock which allows the use of DDR50 and
below without incremental phase tuning. SDR50/SDR104 and the EMMC HS200
speeds require tuning.

Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
8 months agovc4/fkms: Remove use of SMI peripheral
Dom Cobley [Thu, 1 Jul 2021 18:21:10 +0000 (19:21 +0100)]
vc4/fkms: Remove use of SMI peripheral

8 months agopinctrl: bcm2712 pinctrl/pinconf driver
Phil Elwell [Wed, 9 Jun 2021 14:48:28 +0000 (15:48 +0100)]
pinctrl: bcm2712 pinctrl/pinconf driver

pinctrl: bcm2712: Reject invalid pulls

Reject attempts to set pulls on aon-sgpios, and fix pull shift
values.

pinctrl: bcm2712: Add 7712 support, fix 2712 count

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
pinctrl-bcm2712: add EMMC pins so pulls can be set

These pins have pad controls but not mux controls. They look enough like
GPIOs to squeeze in at the end of the list though.

pinctrl: bcm2712: correct BCM2712C0 AON_GPIO pad pull control offset

Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
pinctrl: bcm2712: on C0 the regular GPIO pad control register moves too

Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
pinctrl: bcm2712: Implement (partially) pinconf_get

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
pinctrl: bcm2712: Convert to generic pinconf

Remove the legacy brcm,* pin configuration support and replace it with
a proper generic pinconf interface, using named functions instead of
alt function numbers. This is nicer for users, less error-prone, and
immune to some of the C0->D0 changes.

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
pinctrl: bcm2712: Remove vestigial pull parameter

Now the legacy brcm, pinconf parameters are no longer supported, this
custom pin config parameter is not needed.

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
pinctrl: bcm2712: Guard against bad func numbers

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
pinctrl: bcm2712: A better attempt at D0 support

The BCM2712D0 sparse pinctrl maps play havoc with the old GPIO_REGS
macro, so make the bit positions explicit. And delete the unwanted
GPIO and pinmux declarations on D0.

Note that a Pi 5 with D0 requires a separate DTS file with "bcm2712d0"
compatible strings.

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
pinctrl: bcm2712: Delete base register constants

BCM2712D0 deletes many GPIOs and their associated mux and pad bits,
so much so that the offsets to the start of the pad control registers
changes. Remove the constant offsets from the *GPIO_REGS macros,
compensating by adjusting the per-GPIO values.

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
8 months agoAllow RESET_BRCMSTB on ARCH_BCM2835
Phil Elwell [Thu, 27 May 2021 10:46:30 +0000 (11:46 +0100)]
Allow RESET_BRCMSTB on ARCH_BCM2835

8 months agogpio_brcmstb: Allow to build for ARCH_BCM2835
Dom Cobley [Fri, 21 May 2021 11:33:38 +0000 (12:33 +0100)]
gpio_brcmstb: Allow to build for ARCH_BCM2835

gpio-brcmstb: Report the correct bank width

gpio: brcmstb: Use bank address as gpiochip label

If the path to the device node is used as gpiochip label then
gpio-brcmstb instances with multiple banks end up with duplicated
names. Instead, use a combination of the driver name with the physical
address of the bank, which is both unique and helpful for devmem
debugging.

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
gpio: mmio: Add DIRECT mode for shared access

The generic MMIO GPIO library uses shadow registers for efficiency,
but this breaks attempts by raspi-gpio to change other GPIOs in the
same bank. Add a DIRECT mode that makes fewer assumptions about the
existing register contents, but note that genuinely simultaneous
accesses are likely to lose updates.

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
gpio: brcmstb: Don't always clear interrupt mask

If the GPIO controller is not being used as an interrupt source
leave the interrupt mask register alone. On BCM2712 it might be used
to generate interrupts to the VPU firmware, and on other devices it
doesn't matter since no interrupts will be generated.

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
8 months agobcm2708_fb: Hack out dma support
popcornmix [Thu, 24 Sep 2020 19:13:08 +0000 (20:13 +0100)]
bcm2708_fb: Hack out dma support

8 months agodrivers: char: delete bcm2835-gpiomem
Jonathan Bell [Wed, 26 Apr 2023 12:44:15 +0000 (13:44 +0100)]
drivers: char: delete bcm2835-gpiomem

This functionality is now provided by raspberrypi-gpiomem.

Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
8 months agodefconfigs: Add RASPBERRYPI_GPIOMEM as a module
Dave Stevenson [Thu, 28 Sep 2023 16:12:37 +0000 (17:12 +0100)]
defconfigs: Add RASPBERRYPI_GPIOMEM as a module

This wants to be merged before
"drivers: char: delete bcm2835-gpiomem"

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
8 months agodrivers: char: add generic gpiomem driver
Jonathan Bell [Tue, 25 Apr 2023 14:52:13 +0000 (15:52 +0100)]
drivers: char: add generic gpiomem driver

Based on bcm2835-gpiomem.

We allow export of the "GPIO registers" to userspace via a chardev as
this allows for finer access control (e.g. users must be group gpio, root
not required).

This driver allows access to either rp1-gpiomem or gpiomem, depending on
which nodes are populated in devicetree.

RP1 has a different look-and-feel to BCM283x SoCs as it has split ranges
for IO controls and the parallel registered OE/IN/OUT access. To handle
this, the driver concatenates the ranges for an IO bank and the
corresponding RIO instance into a contiguous buffer.

Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
8 months agoRevert "usb: phy: generic: Get the vbus supply"
Dom Cobley [Mon, 23 May 2022 15:56:44 +0000 (16:56 +0100)]
Revert "usb: phy: generic: Get the vbus supply"

This reverts commit c0ea202fbc855d60bc4a0603ca52a9e80654b327.

8 months agooverlays: Add a sample hat_map
Phil Elwell [Tue, 19 Sep 2023 19:31:34 +0000 (20:31 +0100)]
overlays: Add a sample hat_map

The HAT map is way of associating named overlays with HATs whose
EEPROMs were programmed with the contents of the overlay.
Unfortunately, change in the DT and kernel drivers has meant that some
of these embedded overlays no longer function, or even don't apply.

The HAT map is a mapping from HAT UUIDs to overlay names. If a HAT with
a listed UUID is detected, the embedded overlay is ignored and the
overlay named in the mapping is loaded in its place.

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
8 months agomedia: i2c: imx219: fix binning and rate_factor for 480p and 1232p
Vinay Varma [Fri, 22 Sep 2023 17:17:42 +0000 (18:17 +0100)]
media: i2c: imx219: fix binning and rate_factor for 480p and 1232p

At a high FPS with RAW10, there is frame corruption for 480p because the
rate_factor of 2 is used with the normal 2x2 bining [1]. This commit
ties the rate_factor to the selected binning mode. For the 480p mode,
analog 2x2 binning mode with a rate_factor of 2 is always used. For the
1232p mode the normal 2x2 binning mode is used for RAW10 while analog
2x2 binning mode is used for RAW8.

[1] raspberrypi#5493

Signed-off-by: Vinay Varma <varmavinaym@gmail.com>
Reworked due to upstream changes
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
8 months agomedia: i2c: imx219: Scale the pixel clock rate for the 640x480 mode
Naushir Patuck [Tue, 8 Feb 2022 13:49:11 +0000 (13:49 +0000)]
media: i2c: imx219: Scale the pixel clock rate for the 640x480 mode

The 640x480 mode uses a special binning mode for high framerate operation where
the pixel rate is effectively doubled. Account for this when setting up the
pixel clock rate, and applying the vblank and exposure controls.

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
8 months agomedia: imx219: Advertise embedded data node on media pad 1
Naushir Patuck [Fri, 10 Mar 2023 17:43:57 +0000 (17:43 +0000)]
media: imx219: Advertise embedded data node on media pad 1

This commit updates the imx219 driver to adverise support for embedded
data streams.  This can then be used by the bcm2835-unicam driver, which
has recently been updated to expose the embedded data stream to
userland.

The imx219 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: Naushir Patuck <naush@raspberrypi.com>
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
8 months agomedia: i2c: imx219: make HBLANK r/w to allow longer exposures
Dave Stevenson [Thu, 14 Sep 2023 11:23:05 +0000 (12:23 +0100)]
media: i2c: imx219: make HBLANK r/w to allow longer exposures

The HBLANK control was read-only, and always configured such
that the sensor HTS register was 3448. This limited the maximum
exposure time that could be achieved to around 1.26 secs.

Make HBLANK read/write so that the line time can be extended,
and thereby allow longer exposures (and slower frame rates).
Retain the overall HTS setting when changing modes rather than
resetting it to a default.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
8 months agooverlays: Correct for #pwm-cells = 3
Phil Elwell [Mon, 18 Sep 2023 15:39:33 +0000 (16:39 +0100)]
overlays: Correct for #pwm-cells = 3

An upstream commit changed #pwm-cells for the BCM2835 PWMs to 3, so as
to accomodate the polarity. Add a zero to all references to the PWMs
to indicate normal polarity.

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
8 months agoconfigs: Regenerate the defconfigs
Phil Elwell [Thu, 14 Sep 2023 10:39:45 +0000 (11:39 +0100)]
configs: Regenerate the defconfigs

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
8 months agortc: rv3028: Add backup switchover mode support
Phil Howard [Fri, 29 Mar 2019 10:53:14 +0000 (10:53 +0000)]
rtc: rv3028: Add backup switchover mode support

Signed-off-by: Phil Howard <phil@pimoroni.com>
8 months agoconfigs: Switch CONFIG_EMBEDDED to CONFIG_EXPERT
Dom Cobley [Wed, 13 Sep 2023 18:54:04 +0000 (19:54 +0100)]
configs: Switch CONFIG_EMBEDDED to CONFIG_EXPERT

8 months agoRevert "configs: Regenerate with CONFIG_MEDIA_SUPPORT_FILTER unset"
Dom Cobley [Wed, 13 Sep 2023 18:33:36 +0000 (19:33 +0100)]
Revert "configs: Regenerate with CONFIG_MEDIA_SUPPORT_FILTER unset"

This reverts commit 712b18d20c72f28acb25d4e3a508548453779582.

8 months agobcm2835-unicam: hacks to allow it to build
Dom Cobley [Wed, 13 Sep 2023 17:53:21 +0000 (18:53 +0100)]
bcm2835-unicam: hacks to allow it to build

media: bcm2835-unicam: Fix up async notifier usage

Fixes "8a090fc3e549 bcm2835-unicam: hacks to allow it to build"

8 months agoconfigs: Regenerate with CONFIG_MEDIA_SUPPORT_FILTER unset
Dom Cobley [Wed, 13 Sep 2023 17:52:41 +0000 (18:52 +0100)]
configs: Regenerate with CONFIG_MEDIA_SUPPORT_FILTER unset

Required to enable MEDIA options like CONFIG_VIDEO_RPIVID

8 months agoRevert "drivers: char: add chardev for mmap'ing the RPiVid control registers"
Dom Cobley [Wed, 13 Sep 2023 17:06:19 +0000 (18:06 +0100)]
Revert "drivers: char: add chardev for mmap'ing the RPiVid control registers"

This reverts commit 239b2f31fe443adfaf7f3d4b9eb7786b455b9b75.

8 months agoinput: ads7846: Add missing spi_device_id strings
Dave Stevenson [Fri, 1 Sep 2023 11:23:30 +0000 (12:23 +0100)]
input: ads7846: Add missing spi_device_id strings

The SPI core logs error messages if a compatible string device
name is not also present as an spi_device_id.

No spi_device_id values are specified by the driver, therefore
we get 4 log lines every time it is loaded:
SPI driver ads7846 has no spi_device_id for ti,tsc2046
SPI driver ads7846 has no spi_device_id for ti,ads7843
SPI driver ads7846 has no spi_device_id for ti,ads7845
SPI driver ads7846 has no spi_device_id for ti,ads7873

Add the spi_device_id values for these devices.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
8 months agodrm/ili9486: Resolve clash in spi_device_id names
Dave Stevenson [Fri, 1 Sep 2023 11:17:38 +0000 (12:17 +0100)]
drm/ili9486: Resolve clash in spi_device_id names

For "Really Good Reasons" [1] the SPI core requires a match
between compatible device strings and the name in spi_device_id.

The ili9486 driver uses compatible strings "waveshare,rpi-lcd-35"
and "ozzmaker,piscreen", but "rpi-lcd-35" and "piscreen" are missing,
so add them.

Compatible string "ilitek,ili9486" is already used by
staging/fbtft/fb_ili9486, therefore leaving it present in ili9486 as an
spi_device_id causes the incorrect module to be loaded, therefore remove
this id.

[1] https://elixir.bootlin.com/linux/latest/source/drivers/spi/spi.c#L487

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
8 months agodrivers: media: imx296: Updated imx296 driver for external trigger
Ben Benson [Fri, 21 Jul 2023 14:59:51 +0000 (15:59 +0100)]
drivers: media: imx296: Updated imx296 driver for external trigger

Updated imx296 driver to support external trigger mode via XTR pin.
Added module parameter to control this mode.

Signed-off-by: Ben Benson <ben.benson@raspberrypi.com>
8 months agodrivers: media: imx296: Add standby delay during probe
Naushir Patuck [Fri, 28 Jul 2023 11:00:40 +0000 (12:00 +0100)]
drivers: media: imx296: Add standby delay during probe

Add a 2-5ms delay when coming out of standby and before reading the
sensor info register durning probe, as instructed by the datasheet. This
standby delay is already present when the sensor starts streaming.

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
8 months agocfg80211: ship debian certificates as hex files
Nicolai Buchwitz [Wed, 12 Jul 2023 09:30:42 +0000 (11:30 +0200)]
cfg80211: ship debian certificates as hex files

Loading the regulatory database from the debian files fails with

"loaded regulatory.db is malformed or signature is missing/invalid"

due to missing certificates.  Add these debian-specific certificates
from upstream to fix this error. See #5536 for details.

The certificates have been imported as following:

patch -p1 <<<$(
curl https://salsa.debian.org/kernel-team/linux/-/raw/\
master/debian/patches/debian/\
wireless-add-debian-wireless-regdb-certificates.patch
)

Signed-off-by: Nicolai Buchwitz <n.buchwitz@kunbus.com>
8 months agousb: xhci: add XHCI_VLI_HUB_TT_QUIRK
Jonathan Bell [Thu, 1 Dec 2022 16:59:44 +0000 (16:59 +0000)]
usb: xhci: add XHCI_VLI_HUB_TT_QUIRK

The integrated USB2.0 hub in the VL805 chipset has a bug where it
incorrectly determines the remaining available frame time before the
host next sends a SOF packet with an incremented frame_number.

See the USB2.0 specification sections 11.3 and 11.14.2.3.

The hub's non-periodic TT handler can transmit the IN/OUT handshake
token too late, so a following 64-byte DATA0/1 packet causes the ACK
handshake to collide with the propagated SOF. This causes port babble.

Avoid ringing doorbells for vulnerable endpoints during uFrame 7 if the
TR is Idle to stop one source of babble. An IN transfer for a Running TR
may happen at any time, so there's not much we can do about that.

Ideally a hub firmware update to properly implement frame timeouts is
needed, and to avoid spinning for up to 125us when submitting TDs to
Idle rings.

Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
xhci: constrain XHCI_VLI_HUB_TT_QUIRK to old firmware versions

VLI have a firmware update for the VL805 which resolves the incorrect
frame time calculation in the hub's TT. Limit applying the quirk to
known-bad firmwares.

Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
8 months agousb: xhci: add VLI_SS_BULK_OUT_BUG quirk
Jonathan Bell [Thu, 8 Sep 2022 14:50:15 +0000 (15:50 +0100)]
usb: xhci: add VLI_SS_BULK_OUT_BUG quirk

The VL805 can cause data corruption if a SS Bulk OUT endpoint enters a
flow-control condition and there are TRBs in the transfer ring that are
not an integral size of wMaxPacket and the endpoint is behind one or more
hubs.

This is frequently the case encountered when FAT32 filesystems are
present on mass-storage devices with cluster sizes of 1 sector, and the
filesystem is being written to with an aggregate of small files.

The initial implementation of this quirk separated TRBs that didn't
adhere to this limitation into two - the first a multiple of wMaxPacket
and the second the 512-byte remainder - in an attempt to force TD
fragments to align with packet boundaries. This reduced the incidence
rate of data corruption but did not resolve it.

The fix as recommended by VIA is to disable bursts if this sequence of
TRBs can occur.

Limit turning off bursts to just USB mass-storage devices by searching
the device's configuration for an interface with a class type of
USB_CLASS_MASS_STORAGE.

Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
8 months agousb: xhci: borrow upstream TRB_FETCH quirk on VL805 hosts
Jonathan Bell [Thu, 13 Jul 2023 14:06:54 +0000 (15:06 +0100)]
usb: xhci: borrow upstream TRB_FETCH quirk on VL805 hosts

This reimplements 5a57342 usb: xhci: add VLI_TRB_CACHE_BUG quirk

The downstream implementation required a fair bit of driver surgery to
allow for truncated ring segments, which needed to shrink by a small
amount to avoid the cache prefetcher from reading off the end of one
segment and into another.

An upstream implementation for a similar bug on a different controller
just doubles the size of the memory allocated for ring segments, which
is a bit more wasteful (+4K per allocation) but means less code churn.

Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
8 months agoxhci: quirks: add link TRB quirk for VL805
Jonathan Bell [Mon, 26 Oct 2020 14:03:35 +0000 (14:03 +0000)]
xhci: quirks: add link TRB quirk for VL805

The VL805 controller can't cope with the TR Dequeue Pointer for an endpoint
being set to a Link TRB. The hardware-maintained endpoint context ends up
stuck at the address of the Link TRB, leading to erroneous ring expansion
events whenever the enqueue pointer wraps to the dequeue position.

If the search for the end of the current TD and ring cycle state lands on
a Link TRB, move to the next segment.

Link: https://github.com/raspberrypi/linux/issues/3919
[6.5.y Fixup - move downstream quirk bits further along]

Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
8 months agoxhci: Use more event ring segment table entries
Jonathan Bell [Thu, 13 Jul 2023 13:43:21 +0000 (14:43 +0100)]
xhci: Use more event ring segment table entries

Users have reported log spam created by "Event Ring Full" xHC event
TRBs. These are caused by interrupt latency in conjunction with a very
busy set of devices on the bus. The errors are benign, but throughput
will suffer as the xHC will pause processing of transfers until the
event ring is drained by the kernel. Expand the number of event TRB slots
available by increasing the number of event ring segments in the ERST.

Controllers have a hardware-defined limit as to the number of ERST
entries they can process, so make the actual number in use
min(ERST_MAX_SEGS, hw_max).

Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
8 months agomedia: i2c: arducam_64mp: Add PDAF support
Lee Jackson [Tue, 30 May 2023 07:50:05 +0000 (15:50 +0800)]
media: i2c: arducam_64mp: Add PDAF support

Enable PDAF output for all modes, and also need to modify Embedded Line
Width to 11560 * 3 (two lines of Embedded Data + one line of PDAF).

Signed-off-by: Lee Jackson <lee.jackson@arducam.com>
8 months agomedia: i2c: arducam_64mp: Add 8000x6000 resolution
Lee Jackson [Fri, 5 May 2023 06:36:15 +0000 (14:36 +0800)]
media: i2c: arducam_64mp: Add 8000x6000 resolution

Added 8000x6000 10-bit (cropped) @ 3fps mode for Arducam 64MP

Signed-off-by: Lee Jackson <lee.jackson@arducam.com>
8 months agomedia: i2c: arducam_64mp: Modify the line length of 1280x720 resolution
Lee Jackson [Thu, 4 May 2023 03:14:04 +0000 (11:14 +0800)]
media: i2c: arducam_64mp: Modify the line length of 1280x720 resolution

Arducam 64MP has specific requirements for the line length, and if these
conditions are not met, the camera will not function properly. Under the
previous configuration, once a stream off operation is performed, the
camera will not output any data, even if a stream on operation is
performed. This prevents us from switching from 1280x720 to another
resolution.

Signed-off-by: Lee Jackson <lee.jackson@arducam.com>
8 months agodriver: media: i2c: imx477: Re-enable temperature sensor
Naushir Patuck [Wed, 21 Jun 2023 07:45:02 +0000 (08:45 +0100)]
driver: media: i2c: imx477: Re-enable temperature sensor

The temperature sensor enable register write got lost at some point.
Re-enable it.

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
8 months agodrivers: media: bcm2835_unicam: Improve frame sequence count handling
Naushir Patuck [Fri, 16 Jun 2023 15:24:19 +0000 (16:24 +0100)]
drivers: media: bcm2835_unicam: Improve frame sequence count handling

Ensure that the frame sequence counter is incremented only if a previous
frame start interrupt has occurred, or a frame start + frame end has
occurred simultaneously.

This corresponds the sequence number with the actual number of frames
produced by the sensor, not the number of frame buffers dequeued back
to userland.

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
8 months agoserial: sc16is7xx: Read modem line state at startup
Phil Elwell [Tue, 13 Jun 2023 15:12:54 +0000 (16:12 +0100)]
serial: sc16is7xx: Read modem line state at startup

This patch sets the driver modem line state to the actual line state
at driver startup.

See: https://github.com/raspberrypi/linux/issues/5501

Signed-off-by: Earl Schmidt <schmidt.earl.f@gmail.com>
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
8 months agopanel-sitronix-st7701: Fix panel prepare over SPI
Jack Andersen [Fri, 26 May 2023 19:19:19 +0000 (12:19 -0700)]
panel-sitronix-st7701: Fix panel prepare over SPI

A DSI write is issued in st7701_prepare even when the probed panel
runs on SPI. In practice, this results in a panic with the
vc4-kms-dpi-hyperpixel2r overlay active.

Perform the equivalent write over SPI in this case.

Signed-off-by: Jack Andersen <jackoalan@gmail.com>
8 months agodrivers: media: imx296: Disable 2x2 binned mode
Naushir Patuck [Wed, 31 May 2023 14:51:58 +0000 (15:51 +0100)]
drivers: media: imx296: Disable 2x2 binned mode

Disable enumerating and setting of the 2x2 binned mode entirely as it
does not seem to work for either mono or colour sensor variants.

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
8 months agopps: Compatibility hack should be X86-specific
Phil Elwell [Mon, 22 May 2023 13:22:55 +0000 (14:22 +0100)]
pps: Compatibility hack should be X86-specific

As of [1], using PPS_FETCH on a 64-bit ARM kernel with a 32-bit userland
is broken, returning a timeout. This is because the requested 4-byte
alignment for struct pps_ktime_compat (illegal on arm64) results in the
timeout flags field being uninitialised.

Make the hack specific to X86_64 builds with CONFIG_COMPAT defined.

[1] commit c2a49fe8eeef ("pps: fix padding issue with PPS_FETCH for
    ioctl_compat")

See: https://github.com/raspberrypi/linux/issues/5430
Fixes: c2a49fe8eeef ("pps: fix padding issue with PPS_FETCH for ioctl_compat")
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
8 months agoi2c-bcm2835: Implement I2C_M_IGNORE_NAK
Dave Stevenson [Tue, 23 May 2023 13:31:03 +0000 (14:31 +0100)]
i2c-bcm2835: Implement I2C_M_IGNORE_NAK

Now that transfers aren't aborted immediately (and uncleanly) on
errors, and the FIFOs are always drained after all transfers, we
can implement I2C_M_IGNORE_NAK by ignoring the returned error
value.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
8 months agoi2c-bcm2835: Do not abort transfers on ERR if still active
Dave Stevenson [Tue, 23 May 2023 13:14:05 +0000 (14:14 +0100)]
i2c-bcm2835: Do not abort transfers on ERR if still active

If a transaction is aborted immediately on ERR being reported,
then the bus is not returned to the STOP condition, and devices
generally get very upset.

Handle the ERR and CLKT conditions only when TA is not set.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
8 months agoi2c-bcm2835: Flush FIFOs cleanly on error
Dave Stevenson [Tue, 23 May 2023 13:11:52 +0000 (14:11 +0100)]
i2c-bcm2835: Flush FIFOs cleanly on error

On error condition, note the error return code, but still
handle the FIFOs in the normal way rather than relying on
C_CLEAR flushing everything cleanly.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
8 months agodrm/vc4: hdmi: Increase MAI fifo dreq threshold
Dom Cobley [Fri, 21 Apr 2023 21:00:16 +0000 (22:00 +0100)]
drm/vc4: hdmi: Increase MAI fifo dreq threshold

Now we wait for write responses and have a burst
size of 4, we can set the fifo threshold much higher.

Set it to 28 (of the 32 entry size) to keep fifo
fuller and reduce chance of underflow.

Signed-off-by: Dom Cobley <popcornmix@gmail.com>
8 months agospi: bcm2835: Use phys addresses for slave DMA config
Phil Elwell [Thu, 11 May 2023 15:27:06 +0000 (16:27 +0100)]
spi: bcm2835: Use phys addresses for slave DMA config

Contrary to what struct snd_dmaengine_dai_dma_data suggests, the
configuration of addresses of DMA slave interfaces should be done in
CPU physical addresses.

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
8 months agommc: bcm2835: Use phys addresses for slave DMA config
Phil Elwell [Thu, 11 May 2023 15:25:46 +0000 (16:25 +0100)]
mmc: bcm2835: Use phys addresses for slave DMA config

Contrary to what struct snd_dmaengine_dai_dma_data suggests, the
configuration of addresses of DMA slave interfaces should be done in
CPU physical addresses.

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
8 months agodrm/vc4: Use phys addresses for slave DMA config
Phil Elwell [Thu, 11 May 2023 15:08:15 +0000 (16:08 +0100)]
drm/vc4: Use phys addresses for slave DMA config

Slave addresses for DMA are meant to be supplied as physical addresses
(contrary to what struct snd_dmaengine_dai_dma_data does).

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
8 months agodrm/v3d: New debugfs end-points to query GPU usage stats.
Jose Maria Casanova Crespo [Tue, 7 Feb 2023 12:54:02 +0000 (13:54 +0100)]
drm/v3d: New debugfs end-points to query GPU usage stats.

Two new debugfs interfaces are implemented:

- gpu_usage: exposes the total runtime since boot of each
of the 5 scheduling queues available at V3D (BIN, RENDER,
CSD, TFU, CACHE_CLEAN). So if the interface is queried at
two different points of time the usage percentage of each
of the queues can be calculated.

- gpu_pid_usage: exposes the same information but to the
level of detail of each process using the V3D driver. The
runtime for process using the driver is stored. So the
percentages of usage by PID can be calculated with
measures at different timestamps.

The storage of gpu_pid_usage stats is only done if
the debugfs interface is polled during the last 70 seconds.
If a process does not submit a GPU job during last 70
seconds its stats will also be purged.

Signed-off-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com>
8 months agomedia: i2c: imx258: Make HFLIP and VFLIP controls writable
Dave Stevenson [Tue, 15 Jun 2021 17:29:52 +0000 (18:29 +0100)]
media: i2c: imx258: Make HFLIP and VFLIP controls writable

The sensor supports H & V flips, but the controls were READ_ONLY.

Note that the Bayer order changes with these flips, therefore
they set the V4L2_CTRL_FLAG_MODIFY_LAYOUT property.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
8 months agomedia: i2c: imx258: Change register settings for variants of the sensor
Dave Stevenson [Tue, 21 Jun 2022 13:55:41 +0000 (14:55 +0100)]
media: i2c: imx258: Change register settings for variants of the sensor

Sony have advised that there are variants of the IMX258 sensor which
require slightly different register configuration to the mainline
imx258 driver defaults.

There is no available run-time detection for the variant, so add
configuration via the DT compatible string.

The Vision Components imx258 module supports PDAF, so add the
register differences for that variant

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
8 months agodt-bindings: media: imx258: Add alternate compatible strings
Dave Stevenson [Thu, 11 May 2023 14:44:21 +0000 (15:44 +0100)]
dt-bindings: media: imx258: Add alternate compatible strings

There are a number of variants of the imx258 modules that can not
be differentiated at runtime, so add compatible strings for them.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
8 months agodt-bindings: media: imx258: Rename to include vendor prefix
Dave Stevenson [Thu, 11 May 2023 14:40:16 +0000 (15:40 +0100)]
dt-bindings: media: imx258: Rename to include vendor prefix

imx258.yaml doesn't include the vendor prefix of sony, so
rename to add it.
Update the id entry and MAINTAINERS to match.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
8 months agomedia: i2c: imx258: Support faster pixel rate on binned modes
Dave Stevenson [Fri, 1 Apr 2022 17:56:54 +0000 (18:56 +0100)]
media: i2c: imx258: Support faster pixel rate on binned modes

With the binned modes, there is little point in faithfully
reproducing the horizontal line length of 5352 pixels on the CSI2
bus, and the FIFO between the pixel array and MIPI serialiser
allows us to remove that dependency.

Allow the pixel array to run with the normal settings, with the MIPI
serialiser at half the rate. This requires some additional
information for the link frequency to pixel rate function that
needs to be added to the configuration tables.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
8 months agomedia: i2c: imx258: Set pixel_rate range to the same as the value
Dave Stevenson [Fri, 1 Apr 2022 17:54:12 +0000 (18:54 +0100)]
media: i2c: imx258: Set pixel_rate range to the same as the value

With a read only control there is limited point in advertising
a minimum and maximum for the control, so change to set the
value, min, and max all to the selected pixel rate.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
8 months agomedia: i2c: imx258: Issue reset before starting streaming
Dave Stevenson [Thu, 31 Mar 2022 16:12:12 +0000 (17:12 +0100)]
media: i2c: imx258: Issue reset before starting streaming

Whilst not documented, register 0x0103 bit 0 is the soft
reset for the sensor, so send it before trying to configure
the sensor.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
8 months agomedia: i2c: imx258: Add support for long exposure modes
Dave Stevenson [Thu, 31 Mar 2022 15:45:36 +0000 (16:45 +0100)]
media: i2c: imx258: Add support for long exposure modes

The sensor has a register CIT_LSHIFT which extends the exposure
and frame times by the specified power of 2 for longer
exposure times.

Add support for this by configuring this register via V4L2_CID_VBLANK
and extending the V4L2_CID_EXPOSURE range accordingly.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
8 months agomedia: i2c: imx258: Correct max FRM_LENGTH_LINES value
Dave Stevenson [Thu, 31 Mar 2022 14:39:40 +0000 (15:39 +0100)]
media: i2c: imx258: Correct max FRM_LENGTH_LINES value

The data sheet states that the maximum value for registers
0x0340/0x0341 FRM_LENGTH_LINES is 65525(decimal), not the
0xFFFF defined in this driver. Correct this limit.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
8 months agomedia: i2c: imx258: Allow configuration of clock lane behaviour
Dave Stevenson [Thu, 31 Mar 2022 14:33:59 +0000 (15:33 +0100)]
media: i2c: imx258: Allow configuration of clock lane behaviour

The sensor supports the clock lane either remaining in HS mode
during frame blanking, or dropping to LP11.

Add configuration of the mode via V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
8 months agomedia: i2c: imx258: Add get_selection for pixel array information
Dave Stevenson [Wed, 23 Mar 2022 15:48:49 +0000 (15:48 +0000)]
media: i2c: imx258: Add get_selection for pixel array information

Libcamera requires the cropping information for each mode, so
add this information to the driver.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
8 months agomedia: i2c: imx258: Follow normal V4L2 behaviours for clipping exposure
Dave Stevenson [Wed, 16 Jun 2021 16:19:17 +0000 (17:19 +0100)]
media: i2c: imx258: Follow normal V4L2 behaviours for clipping exposure

V4L2 sensor drivers are expected are expected to clip the supported
exposure range based on the VBLANK configured.
IMX258 wasn't doing that as register 0x350 (FRM_LENGTH_CTL)
switches it to a mode where frame length tracks coarse exposure time.

Disable this mode and clip the range for V4L2_CID_EXPOSURE appropriately
based on V4L2_CID_VBLANK.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
8 months agomedia: i2c: imx258: Add support for running on 2 CSI data lanes
Dave Stevenson [Wed, 16 Jun 2021 15:27:06 +0000 (16:27 +0100)]
media: i2c: imx258: Add support for running on 2 CSI data lanes

Extends the driver to also support 2 data lanes.
Frame rates are obviously more restricted on 2 lanes, but some
hardware simply hasn't wired more up.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
8 months agomedia: i2c: imx258: Add support for 24MHz clock
Dave Stevenson [Wed, 16 Jun 2021 12:08:00 +0000 (13:08 +0100)]
media: i2c: imx258: Add support for 24MHz clock

There's no reason why the clock must be 19.2MHz and nothing
else (indeed this isn't even a frequency listed in the datasheet),
so add support for 24MHz as well.
The PLL settings result in slightly different link frequencies,
so parameterise those.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
8 months agomedia: i2c: imx258: Make V4L2_CID_VBLANK configurable.
Dave Stevenson [Tue, 15 Jun 2021 17:56:33 +0000 (18:56 +0100)]
media: i2c: imx258: Make V4L2_CID_VBLANK configurable.

The values and ranges of V4L2_CID_VBLANK are all computed,
so there is no reason for it to be a read only control.
Remove the register values from the mode lists, add the
handler, and remove the read only flag.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
8 months agomedia: i2c: imx258: Add regulator control
Dave Stevenson [Tue, 15 Jun 2021 17:45:40 +0000 (18:45 +0100)]
media: i2c: imx258: Add regulator control

The device tree bindings define the relevant regulators for the
sensor, so update the driver to request the regulators and control
them at the appropriate times.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
8 months agomedia: i2c: imx258: Remove redundant I2C writes.
Dave Stevenson [Tue, 15 Jun 2021 17:38:46 +0000 (18:38 +0100)]
media: i2c: imx258: Remove redundant I2C writes.

Registers 0x0202 and 0x0203 are written via the control handler
for V4L2_CID_EXPOSURE, so are not needed from the mode lists.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
8 months agomedia: i2c: imx258: Disable digital cropping on binned modes
Dave Stevenson [Wed, 30 Mar 2022 13:55:01 +0000 (14:55 +0100)]
media: i2c: imx258: Disable digital cropping on binned modes

The binned modes set DIG_CROP_X_OFFSET and DIG_CROP_IMAGE_WIDTH
to less than the full image, even though the image being captured
is meant to be a scaled version of the full array size.

Reduce X_OFFSET to 0, and increase IMAGE_WIDTH to the full array.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
8 months agomedia: i2c: imx258: Make image geometry meet sensor requirements
Dave Stevenson [Tue, 15 Jun 2021 17:34:38 +0000 (18:34 +0100)]
media: i2c: imx258: Make image geometry meet sensor requirements

The output image is defined as being 4208x3118 pixels in size.
Y_ADD_STA register was set to 0, and Y_ADD_END to 3118, giving
3119 lines total.

The datasheet lists a requirement for Y_ADD_STA to be a multiple
of a power of 2 depending on binning/scaling mode (2 for full pixel,
4 for x2-bin/scale, 8 for (x2-bin)+(x2-subsample) or x4-bin, or 16
for (x4-bin)+(x2-subsample)).
(Y_ADD_END – Y_ADD_STA + 1) also has to be a similar power of 2.

The current configuration for the full res modes breaks that second
requirement, and we can't increase Y_ADD_STA to 1 to retain exactly
the same field of view as that then breaks the first requirement.
For the binned modes, they are worse off as 3118 is not a multiple of
4.

Increase the main mode to 4208x3120 so that it is the same FOV as the
binned modes, with Y_ADD_STA at 0.
Fix Y_ADD_STA and Y_ADD_END for the binned modes so that they meet the
sensor requirements.

This does change the Bayer order as the default configuration is for
H&V flips to be enabled, so readout is from Y_STA_END to Y_ADD_STA,
and this patch has changed Y_STA_END.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
8 months agomedia: i2c: imx258: Remove unused defines
Dave Stevenson [Tue, 15 Jun 2021 17:18:42 +0000 (18:18 +0100)]
media: i2c: imx258: Remove unused defines

The IMX258_FLL_* defines are unused. Remove them.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
8 months agopinctrl: bcm2835: Workaround for edge IRQ loss
Phil Elwell [Fri, 5 May 2023 10:25:48 +0000 (11:25 +0100)]
pinctrl: bcm2835: Workaround for edge IRQ loss

It has been observed that edge events can be lost when GPIO edges occur
close to each other. Investigation suggests this is due to a hardware
bug, although no mechanism has been identified.

Work around the event loss by moving the IRQ acknowledgement into the
main ISR, adding missing events by explicit level-change detection.

See: https://forums.raspberrypi.com/viewtopic.php?t=350295

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
8 months agoBluetooth: hci_bcm: Add more invalid BDADDRs
Phil Elwell [Thu, 6 Apr 2023 09:38:40 +0000 (10:38 +0100)]
Bluetooth: hci_bcm: Add more invalid BDADDRs

The kernel needs to recognise the default BDADDRs used by the Bluetooth
modems, so add a few more that we care about.

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
8 months agoBluetooth: hci_sync: Add fallback-bd-address prop
Phil Elwell [Tue, 25 Apr 2023 10:49:41 +0000 (11:49 +0100)]
Bluetooth: hci_sync: Add fallback-bd-address prop

The kernel Bluetooth framework understands that devices may not
be programmed with valid Bluetooth addresses. It also has the ability
to override a Bluetooth address with the value of the local-bd-address
DT property, but it ignores the validity of the existing address when
doing so.

Add a new boolean property, fallback-bd-address, which indicates that
the given local-bd-address property should only be used if the device
does not already have a valid BDADDR.

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
8 months agoserial: 8250: Add NOMSI bug for bcm2835aux
Phil Elwell [Mon, 24 Apr 2023 10:48:31 +0000 (11:48 +0100)]
serial: 8250: Add NOMSI bug for bcm2835aux

The BCM2835 mini-UART has no modem status interrupt, causing all
transmission to stop, never to use, if a speed change ever happens
while the CTS signal is high.

Add a simple polling mechanism in order to allow recovery in that
situation.

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
8 months agoinput: goodix: Add option to poll instead of relying on IRQ line
Dave Stevenson [Mon, 30 Jan 2023 14:46:16 +0000 (14:46 +0000)]
input: goodix: Add option to poll instead of relying on IRQ line

The interrupt line from the touch controller is not necessarily
connected to the SoC, so add the option to poll for touch info.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
8 months agodrm/panel: Add panel driver for Waveshare DSI touchscreens
Dave Stevenson [Fri, 14 Apr 2023 12:50:08 +0000 (13:50 +0100)]
drm/panel: Add panel driver for Waveshare DSI touchscreens

Waveshare sell a range of DSI panels of varying sizes, all
using a common MCU to control the panel and backlight.

Add a panel driver that supports these panels.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
8 months agomedia: bcm2835-unicam: Start and stop media_pipeline with same node
Dave Stevenson [Tue, 28 Mar 2023 12:43:43 +0000 (13:43 +0100)]
media: bcm2835-unicam: Start and stop media_pipeline with same node

media_pipeline_start and media_pipeline_stop now validate that
the pipeline is being started and stopped with the same pipe
and pad handles.
When running with embedded metadata (eg imx477 and imx708), the
start typically happens from the metadata pad, whilst stop is
always from the image pad.

Always pass the image pad to media_pipeline_start to ensure
that the calls are balanced.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
8 months agodrives: media: imx708: Put HFLIP and VFLIP controls in a cluster
Naushir Patuck [Fri, 31 Mar 2023 11:02:09 +0000 (12:02 +0100)]
drives: media: imx708: Put HFLIP and VFLIP controls in a cluster

Create a cluster for the HVLIP and VFLIP controls so they are treated
as a single composite control.

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
8 months agodrivers: media: imx708: Follow the standard devicetree labels
Naushir Patuck [Fri, 31 Mar 2023 14:05:33 +0000 (15:05 +0100)]
drivers: media: imx708: Follow the standard devicetree labels

Switch the system clock name from "xclk" to "inclk".
Use lower case lables for all regulator names.

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
8 months agodt-bindings: media: i2c: Replace IMX708 sensor binding documentation file
Naushir Patuck [Fri, 31 Mar 2023 10:52:25 +0000 (11:52 +0100)]
dt-bindings: media: i2c: Replace IMX708 sensor binding documentation file

Replace the existing imx708.yaml file with sony,imx708.yaml that follows
the latest devicetree conventions for camera sensors.

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
8 months agodrivers: media: imx708: Tidy-ups to address upstream review comments
Naushir Patuck [Fri, 31 Mar 2023 09:33:51 +0000 (10:33 +0100)]
drivers: media: imx708: Tidy-ups to address upstream review comments

This commit addresses vaious tidy-ups requesed for upstreaming the
IMX708 driver. Notably:

- Remove #define IMX708_NUM_SUPPLIES and use ARRAY_SIZE() directly
- Use dev_err_probe where possible in imx708_probe()
- Fix error handling paths in imx708_probe()

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
8 months agodrivers: media: imx708: Remove unused control fields
Naushir Patuck [Fri, 31 Mar 2023 09:07:26 +0000 (10:07 +0100)]
drivers: media: imx708: Remove unused control fields

Remove unused and redundant control fields from the state structure.

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
8 months agodrivers: media: imx708: Increase usable link frequencies
Naushir Patuck [Fri, 31 Mar 2023 13:56:09 +0000 (14:56 +0100)]
drivers: media: imx708: Increase usable link frequencies

Add support for three different usable link frequencies (default 450Mhz,
447Mhz, and 453MHz) for the IMX708 camera sensor. The choice of
frequency is handled thorugh the "link-frequency" overlay parameter.

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
8 months agofbdev: Don't cancel deferred work if pagelist empty
Phil Elwell [Wed, 29 Mar 2023 08:49:36 +0000 (09:49 +0100)]
fbdev: Don't cancel deferred work if pagelist empty

Since [1], the fbdev deferred IO framework is careful to cancel
pending updates on close to prevent dirty pages being accessed after
they may have been reused. However, this is not necessary in the case
that the pagelist is empty, and drivers that don't make use of the
pagelist may have wanted updates cancelled for no good reason.

Avoid penalising fbdev drivers that don't make use of the pagelist by
making the cancelling of deferred IO on close conditional on there
being a non-empty pagelist.

See: https://github.com/raspberrypi/linux/issues/5398

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
[1] 3efc61d95259 ("fbdev: Fix invalid page access after closing deferred I/O devices")

8 months agohwrng: bcm2835 - sleep more intelligently
Phil Elwell [Wed, 22 Mar 2023 15:30:38 +0000 (15:30 +0000)]
hwrng: bcm2835 - sleep more intelligently

While waiting for random data, use sleeps that are proportional
to the amount of data expected. Prevent indefinite waits by
giving up if nothing is received for a second.

See: https://github.com/raspberrypi/linux/issues/5390

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
8 months agorpisense-fb: Add explicit fb_deferred_io_mmap hook
Phil Elwell [Mon, 27 Mar 2023 09:25:25 +0000 (10:25 +0100)]
rpisense-fb: Add explicit fb_deferred_io_mmap hook

As of commit [1], introduced in 5.18, fbdev drivers that use
deferred IO and need mmap support must include an explicit fb_mmap
pointer to the fb_deferred_io_mmap.

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
[1] 590558510327 ("fbdev: Put mmap for deferred I/O into drivers")

8 months agodrivers: media: i2c: imx708: Fix WIDE_DYNAMIC_RANGE control with long exposure
David Plowman [Wed, 22 Mar 2023 12:01:57 +0000 (12:01 +0000)]
drivers: media: i2c: imx708: Fix WIDE_DYNAMIC_RANGE control with long exposure

Setting V4L2_CID_WIDE_DYNAMIC_RANGE was causing the long exposure
shift count to be reset, which is incorrect if the user has already
changed the frame length to cause it to have a non-zero value.

Because it only updates control ranges and doesn't set any registers,
the control can also be applied when the sensor is not powered on.

Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
8 months agomedia: i2c: Add PDAF support for IMX519
Lee Jackson [Wed, 22 Mar 2023 08:19:13 +0000 (16:19 +0800)]
media: i2c: Add PDAF support for IMX519

Add PDAF support for IMX519, and reduce the pixel rate to 426666667,
link freq to 408000000.

Signed-off-by: Lee Jackson <lee.jackson@arducam.com>
8 months agoclk: bcm: rpi: Create helper to retrieve private data
Maxime Ripard [Mon, 11 Jul 2022 13:58:36 +0000 (15:58 +0200)]
clk: bcm: rpi: Create helper to retrieve private data

The RaspberryPi firmware clocks driver uses in several instances a
container_of to retrieve the struct raspberrypi_clk_data from a pointer
to struct clk_hw. Let's create a small function to avoid duplicating it
all over the place.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
8 months agoad5398_vcm: Fixup ad5398_probe prototype
Dom Cobley [Tue, 14 Mar 2023 16:54:37 +0000 (16:54 +0000)]
ad5398_vcm: Fixup ad5398_probe prototype

8 months agomedia: i2c: imx219: Correct the minimum vblanking value
David Plowman [Tue, 25 Jan 2022 15:48:53 +0000 (15:48 +0000)]
media: i2c: imx219: Correct the minimum vblanking value

The datasheet for this sensor documents the minimum vblanking as being
32 lines. It does fix some problems with occasional black lines at the
bottom of images (tested on Raspberry Pi).

Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
8 months agoiio: light: veml6070: Add DT compatible string
Phil Elwell [Tue, 7 Mar 2023 21:49:30 +0000 (21:49 +0000)]
iio: light: veml6070: Add DT compatible string

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
8 months agoiio: light: tsl4531: Add DT compatible string
Phil Elwell [Tue, 7 Mar 2023 21:48:54 +0000 (21:48 +0000)]
iio: light: tsl4531: Add DT compatible string

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
8 months agohwmon: (sht3x) Add DT compatible string
Phil Elwell [Tue, 7 Mar 2023 21:47:58 +0000 (21:47 +0000)]
hwmon: (sht3x) Add DT compatible string

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
8 months agortc: ds3232: Add DT compatible string for ds3234
Phil Elwell [Tue, 7 Mar 2023 20:51:53 +0000 (20:51 +0000)]
rtc: ds3232: Add DT compatible string for ds3234

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
8 months agohwmon: (ds1621) Add DT compatible strings
Phil Elwell [Tue, 7 Mar 2023 12:12:36 +0000 (12:12 +0000)]
hwmon: (ds1621) Add DT compatible strings

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
8 months agohwmon: (aht10): Add DT compatible string
Phil Elwell [Tue, 7 Mar 2023 11:52:36 +0000 (11:52 +0000)]
hwmon: (aht10): Add DT compatible string

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
8 months agogpio: pca953x: Add ti,tca9554 compatible string
Phil Elwell [Mon, 6 Mar 2023 21:04:05 +0000 (21:04 +0000)]
gpio: pca953x: Add ti,tca9554 compatible string

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
8 months agoiio: adc: mcp3422: Add correct compatible strings
Phil Elwell [Mon, 6 Mar 2023 20:04:34 +0000 (20:04 +0000)]
iio: adc: mcp3422: Add correct compatible strings

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
8 months agodrm/panel/panel-sitronix-st7701: Support SPI config and RGB data
Dave Stevenson [Tue, 1 Feb 2022 15:27:01 +0000 (15:27 +0000)]
drm/panel/panel-sitronix-st7701: Support SPI config and RGB data

The ST7701 supports numerous different interface mechanisms for
MIPI DSI, RGB, or SPI. The driver was only implementing DSI input,
so add RGB parallel input with SPI configuration.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>