Phil Elwell [Mon, 6 Jan 2020 16:04:30 +0000 (16:04 +0000)]
pinctrl: bcm2835: Remove gpiochip on error
A failure in gpiochip_irqchip_add leads to a leak of a gpiochip. Fix
the leak with the use of devm_gpiochip_add_data.
Fixes:
85ae9e512f43 ("pinctrl: bcm2835: switch to GPIOLIB_IRQCHIP")
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Phil Elwell [Mon, 3 Feb 2020 17:30:46 +0000 (17:30 +0000)]
staging: vchiq_arm: Give vchiq children DT nodes
vchiq kernel clients are now instantiated as platform drivers rather
than using DT, but the children of the vchiq interface may still
benefit from access to DT properties. Give them the option of a
a sub-node of the vchiq parent for configuration and to allow
them to be disabled.
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Luke Hinds [Wed, 22 Jan 2020 16:03:00 +0000 (16:03 +0000)]
Initialise rpi-firmware before clk-bcm2835
The IMA (Integrity Measurement Architecture) looks for a TPM (Trusted
Platform Module) having been registered when it initialises; otherwise
it assumes there is no TPM. It has been observed on BCM2835 that IMA
is initialised before TPM, and that initialising the BCM2835 clock
driver before the firmware driver has the effect of reversing this
order.
Change the firmware driver to initialise at core_initcall, delaying the
BCM2835 clock driver to postcore_initcall.
See: https://github.com/raspberrypi/linux/issues/3291
https://github.com/raspberrypi/linux/pull/3297
Signed-off-by: Luke Hinds <lhinds@redhat.com>
Co-authored-by: Phil Elwell <phil@raspberrypi.org>
Stefan Wahren [Fri, 27 Dec 2019 10:40:56 +0000 (11:40 +0100)]
ARM: bcm: Backport BCM2711 support from upstream
Make the BCM2711 a different machine, but keep it in board_bcm2835.
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Dave Stevenson [Tue, 18 Jun 2019 11:15:50 +0000 (12:15 +0100)]
staging: vchiq: Use the old dma controller for OF config on platform devices
vchiq on Pi4 is no longer under the soc node, therefore it
doesn't get the dma-ranges for the VPU.
Switch to using the configuration of the old dma controller as
that will set the dma-ranges correctly.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Dave Stevenson [Tue, 29 Jan 2019 16:13:25 +0000 (16:13 +0000)]
staging: vchiq_arm: Set up dma ranges on child devices
The VCHIQ driver now loads the audio, camera, codec, and vc-sm
drivers as platform drivers. However they were not being given
the correct DMA configuration.
Call of_dma_configure with the parent (VCHIQ) parameters to be
inherited by the child.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Phil Elwell [Fri, 22 Nov 2019 16:23:32 +0000 (16:23 +0000)]
drm/v3d: Set dma_mask as well as coherent_dma_mask
Both coherent_dma_mask and dma_mask act as constraints on allocations
and bounce buffer usage, so be sure to set dma_mask to the appropriate
value otherwise the effective mask could be incorrect.
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
popcornmix [Tue, 3 Sep 2019 19:28:00 +0000 (20:28 +0100)]
clk-bcm2835: Disable v3d clock
This is controlled by firmware, see clk-raspberrypi.c
Signed-off-by: popcornmix <popcornmix@gmail.com>
popcornmix [Mon, 9 Sep 2019 14:49:56 +0000 (15:49 +0100)]
clk-raspberrypi: Allow cpufreq driver to also adjust gpu clocks
For performance/power it is beneficial to adjust gpu clocks with arm clock.
This is how the downstream cpufreq driver works
Signed-off-by: popcornmix <popcornmix@gmail.com>
popcornmix [Thu, 5 Sep 2019 16:59:14 +0000 (17:59 +0100)]
v3d_gem: Kick the clock so firmware knows we are using firmware clock interface
Setting the v3d clock to low value allows firmware to handle dvfs in case
where v3d hardware is not being actively used (e.g. console use).
Signed-off-by: popcornmix <popcornmix@gmail.com>
popcornmix [Fri, 23 Aug 2019 15:34:38 +0000 (16:34 +0100)]
v3d_drv: Handle missing clock more gracefully
Signed-off-by: popcornmix <popcornmix@gmail.com>
James Hughes [Thu, 7 Nov 2019 14:59:59 +0000 (14:59 +0000)]
net:phy:2711 Change the default ethernet LED actions
This should return default behaviour back to that of previous
releases.
James Hughes [Thu, 31 Oct 2019 14:39:44 +0000 (14:39 +0000)]
net:phy:2711 Allow ethernet LED mode to be set via device tree
Add device tree entries and code to allow the specification of
the lighting modes for the LED's on the ethernet connector.
Signed-off-by: James Hughes <james.hughes@raspberrypi.org>
Phil Elwell [Thu, 14 Nov 2019 11:59:01 +0000 (11:59 +0000)]
net: bcmgenet: The second IRQ is optional
As of 5.4, the kernel logs errors for absent IRQs unless requested
with platform_get_irq_optional.
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Dave Stevenson [Wed, 6 Nov 2019 13:57:58 +0000 (13:57 +0000)]
staging: vchiq_arm: Register bcm2835-codec as a platform driver
Following the same pattern as bcm2835-camera and bcm2835-audio,
register the V4L2 codec driver as a platform driver
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Dave Stevenson [Wed, 6 Nov 2019 13:57:48 +0000 (13:57 +0000)]
staging: vchiq_arm: Register vcsm-cma as a platform driver
Following the same pattern as bcm2835-camera and bcm2835-audio,
register the vcsm-cma driver as a platform driver
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Phil Elwell [Tue, 12 Nov 2019 16:41:21 +0000 (16:41 +0000)]
drm/v3d: Plug dma_fence leak
The irq_fence and done_fence are given a reference that is never
released. The necessary dma_fence_put()s seem to have been
deleted in error in an earlier commit.
Fixes:
0b73676836b2 ("drm/v3d: Clock V3D down when not in use.")
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Phil Elwell [Mon, 11 Nov 2019 20:18:08 +0000 (20:18 +0000)]
drm/v3d: Suppress all but the first MMU error
The v3d driver currently encounters a lot of MMU PTE exceptions, so
only log the first to avoid swamping the kernel log.
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Phil Elwell [Mon, 11 Nov 2019 14:01:41 +0000 (14:01 +0000)]
drm/v3d: Don't clear MMU control bits on exception
MMU exception conditions are reported in the V3D_MMU_CTRL register as
write-1-to-clear (W1C) bits. The MMU interrupt handling code clears any
exceptions, but does so by masking out any other bits and writing the
result back. There are some important control bits in that register,
including MMU_ENABLE, so a safer approach is to simply write back the
value just read unaltered.
This patch doesn't remove the cause of the apparent PTE errors, but it
does reduce the impact to just an error in the kernel log.
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Markus Proeller [Thu, 10 Oct 2019 17:12:36 +0000 (19:12 +0200)]
media: i2c: Add a driver for the Infineon IRS1125 depth sensor
The Infineon IRS1125 is a time of flight depth sensor that
has a CSI-2 interface.
Add a V4L2 subdevice driver for this device.
Signed-off-by: Markus Proeller <markus.proeller@pieye.org>
Markus Proeller [Thu, 10 Oct 2019 17:12:08 +0000 (19:12 +0200)]
dt-bindings: Add binding for the Infineon IRS1125 sensor
Adds a binding for the Infineon IRS1125 time-of-flight depth
sensor.
Signed-off-by: Markus Proeller <markus.proeller@pieye.org>
James Hughes [Tue, 24 Sep 2019 17:26:55 +0000 (18:26 +0100)]
Rename HDMI ALSA device names, check for enable state
HDMI Alsa devices renamed to match names used by DRM, to
HDMI 1 and HDMI 2
Check for which HDMI devices are connected and only create
devices for those that are present.
The rename of the devices might cause some backwards compatibility
issues, but since this particular part of the driver needs to be
specifically enabled, I suspect the number of people who will see
the problem will be very small.
Signed-off-by: James Hughes <james.hughes@raspberrypi.org>
Stefan Wahren [Thu, 19 Sep 2019 18:45:30 +0000 (20:45 +0200)]
ARM: bcm: Switch board, clk and pinctrl to bcm2711 compatible
After the decision to use bcm2711 compatible for upstream, we should
switch all accepted compatibles to bcm2711. So we can boot with
one DTB the down- and the upstream kernel.
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Phil Elwell [Mon, 23 Sep 2019 08:26:41 +0000 (09:26 +0100)]
kbuild: Allow .dtbo overlays to be built piecemeal
Before 4.20, it was possible to build an arbitrary overlay by copying
it to arm/boot/dts/overlays/mytest-overlay.dts and running:
make ARCH=arm overlays/mytest.dtbo
In 4.20 the .dtb build rules were centralised, requiring the dowstream
.dtbo build rules to be changed. They were, enough to support "make ...
dtbs", but not sufficiently to allow this ad-hoc, one-off building of
individual files.
Add the missing makefile rule to support this way of building.
See: https://github.com/raspberrypi/linux/issues/3250
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Phil Elwell [Wed, 18 Sep 2019 16:22:36 +0000 (17:22 +0100)]
drm/v3d: Delete pm_runtime support
The pm_runtime was blocking changelist submission, so delete it as a
temporary workaround.
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Dave Stevenson [Fri, 6 Sep 2019 14:13:06 +0000 (15:13 +0100)]
staging: bcm2835-camera: Add greyworld AWB mode
This is mainly used for the NoIR camera which has no IR
filter and can completely confuse normal AWB presets.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Dave Stevenson [Fri, 6 Sep 2019 14:04:51 +0000 (15:04 +0100)]
v4l2: Add a Greyworld AWB mode.
Adds a simple greyworld white balance preset, mainly for use
with cameras without an IR filter (eg Raspberry Pi NoIR)
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Dave Stevenson [Wed, 28 Aug 2019 12:34:30 +0000 (13:34 +0100)]
media: dt-bindings: Add binding for the Sony IMX219 sensor
The IMX219 is an 8MPix CSI2 sensor, supporting 2 or 4 data lanes.
Document the binding for this device.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Phil Elwell [Tue, 3 Sep 2019 17:17:25 +0000 (18:17 +0100)]
arch/arm64: Add Revision, Serial, Model to cpuinfo
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Phil Elwell [Tue, 3 Sep 2019 17:16:56 +0000 (18:16 +0100)]
arch/arm: Add model string to cpuinfo
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Phil Elwell [Thu, 15 Aug 2019 11:02:34 +0000 (12:02 +0100)]
configs: arm64/bcm2711: Enable V3D
Enable the V3D driver, which depends on BCM2835_POWER.
Originally submitted by GitHub user 'phire' in a slightly different
form.
See: https://github.com/raspberrypi/linux/pull/3063
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Jonathan Bell [Tue, 13 Aug 2019 14:53:29 +0000 (15:53 +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.org>
Phil Elwell [Fri, 9 Aug 2019 07:51:43 +0000 (08:51 +0100)]
net: bcmgenet: Workaround #2 for Pi4 Ethernet fail
Some combinations of Pi 4Bs and Ethernet switches don't reliably get a
DCHP-assigned IP address, leaving the unit with a self=assigned 169.254
address. In the failure case, the Pi is left able to receive packets
but not send them, suggesting that the MAC<->PHY link is getting into
a bad state.
It has been found empirically that skipping a reset step by the genet
driver prevents the failures. No downsides have been discovered yet,
and unlike the forced renegotiation it doesn't increase the time to
get an IP address, so the workaround is enabled by default; add
genet.skip_umac_reset=n
to the command line to disable it.
See: https://github.com/raspberrypi/linux/issues/3108
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
James Hughes [Tue, 16 Jul 2019 11:18:21 +0000 (12:18 +0100)]
Add HDMI1 facility to the driver.
For generic ALSA, all you need is the bcm2835.h change, but
have also added structures for IEC958 HDMI. Not sure how to
test those.
Jonathan Bell [Thu, 1 Aug 2019 15:41:20 +0000 (16:41 +0100)]
hid: usb: Add device quirks for Freeway Airmouse T3 and MX3
These wireless mouse/keyboard combo remote control devices specify
multiple "wheel" events in their report descriptors. The wheel events
are incorrectly defined and apparently map to accelerometer data, leading
to spurious mouse scroll events being generated at an extreme rate when
the device is moved.
As a workaround, use HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE to mask
feeding the extra wheel events to the input subsystem.
See: https://github.com/raspberrypi/firmware/issues/1189
Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
Jonathan Bell [Thu, 9 May 2019 13:30:37 +0000 (14:30 +0100)]
drivers: char: add chardev for mmap'ing the RPiVid control registers
Based on the gpiomem driver, allow mapping of the decoder register
spaces such that userspace can access control/status registers.
This driver is intended for use with a custom ffmpeg backend accelerator
prior to a v4l2 driver being written.
Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
driver: char: rpivid: Destroy the legacy device on remove
The legacy name support created a new device that was never destroyed.
If the driver was unloaded and reloaded, it failed due to the
device already existing.
Fixes: "75f1d14 driver: char: rpivid - also support legacy name"
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
driver: char: rpivid: Clean up error handling use of ERR_PTR/IS_ERR
The driver used an unnecessary intermediate void* variable so it
only called ERR_PTR once to convert to the error value.
Switch to converting as the error arises to remove these intermediate
variables.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
driver: char: rpivid: Add error handling to the legacy device load
The return value from device_create for the legacy device was never
checked or handled. Add the required error handling.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
driver: char: rpivid: Fix coding style whitespace issues.
Makes checkpatch happier.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
driver: char: rpimem: Add SPDX licence header.
Stops checkpatch complaining.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
driver: char: rpivid: Fix access to freed memory
The error path during probe frees the private memory block, and
then promptly dereferences it to log an error message.
Use the base device instead of the pointer to it in the private
structure.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Eric Anholt [Thu, 2 May 2019 20:22:53 +0000 (13:22 -0700)]
drm/v3d: Clock V3D down when not in use.
My various attempts at re-enabling runtime PM have failed, so just
crank the clock down when V3D is idle to reduce power consumption.
Signed-off-by: Eric Anholt <eric@anholt.net>
Eric Anholt [Mon, 14 Jan 2019 23:13:17 +0000 (15:13 -0800)]
drm/v3d: HACK: gut runtime pm for now.
Something is still unstable -- on starting a new glxgears from an idle
X11, I get an MMU violation in high addresses. The CTS also failed
quite quickly. With this, CTS progresses for an hour before OOMing
(allocating some big buffers when my board only has 600MB available to
Linux)
Signed-off-by: Eric Anholt <eric@anholt.net>
popcornmix [Tue, 6 Aug 2019 14:23:14 +0000 (15:23 +0100)]
clk-bcm2835: Avoid null pointer exception
clk_desc_array[BCM2835_PLLB] doesn't exist so we dereference null when iterating
Signed-off-by: popcornmix <popcornmix@gmail.com>
Phil Elwell [Fri, 12 Jul 2019 14:38:35 +0000 (15:38 +0100)]
i2c: bcm2835: Set clock-stretch timeout to 35ms
The BCM2835 I2C blocks have a register to set the clock-stretch
timeout - how long the device is allowed to hold SCL low - in bus
cycles. The current driver doesn't write to the register, therefore
the default value of 64 cycles is being used for all devices.
Set the timeout to the value recommended for SMBus - 35ms.
See: https://github.com/raspberrypi/linux/issues/3064
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Jonathan Bell [Thu, 11 Jul 2019 16:55:43 +0000 (17:55 +0100)]
xhci: add quirk for host controllers that don't update endpoint DCS
Seen on a VLI VL805 PCIe to USB controller. For non-stream endpoints
at least, if the xHC halts on a particular TRB due to an error then
the DCS field in the Out Endpoint Context maintained by the hardware
is not updated with the current cycle state.
Using the quirk XHCI_EP_CTX_BROKEN_DCS and instead fetch the DCS bit
from the TRB that the xHC stopped on.
See: https://github.com/raspberrypi/linux/issues/3060
Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
Eric Anholt [Mon, 14 Jan 2019 22:47:57 +0000 (14:47 -0800)]
drm/v3d: Hook up the runtime PM ops.
In translating the runtime PM code from vc4, I missed the ".pm"
assignment to actually connect them up. Fixes missing MMU setup if
runtime PM resets V3D.
Signed-off-by: Eric Anholt <eric@anholt.net>
(cherry picked from commit
ca197699af29baa8236c74c53d4904ca8957ee06)
Eric Anholt [Mon, 14 Jan 2019 20:35:43 +0000 (12:35 -0800)]
drm/v3d: Skip MMU flush if the device is currently off.
If it's off, we know it will be reset on poweron, so the MMU won't
have any TLB cached from before this point. Avoids failed waits for
MMU flush to reply.
Signed-off-by: Eric Anholt <eric@anholt.net>
(cherry picked from commit
3ee4e2e0a9e9587eacbb69b067bbc72ab2cdc47b)
Eric Anholt [Fri, 5 Oct 2018 00:22:43 +0000 (17:22 -0700)]
drm/v3d: Add support for 2711.
Signed-off-by: Eric Anholt <eric@anholt.net>
Phil Elwell [Tue, 11 Jun 2019 16:38:28 +0000 (17:38 +0100)]
arm: bcm2835: Add bcm2838 compatible string.
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Jonathan Bell [Tue, 11 Jun 2019 10:42:03 +0000 (11:42 +0100)]
usbhid: call usb_fixup_endpoint after mangling intervals
Lets the mousepoll override mechanism work with xhci.
Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
Jonathan Bell [Tue, 11 Jun 2019 10:33:39 +0000 (11:33 +0100)]
xhci: implement xhci_fixup_endpoint for interval adjustments
Must be called in a non-atomic context, after the endpoint
has been registered with the hardware via xhci_add_endpoint
and before the first URB is submitted for the endpoint.
Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
Jonathan Bell [Tue, 11 Jun 2019 09:55:00 +0000 (10:55 +0100)]
usb: add plumbing for updating interrupt endpoint interval state
xHCI caches device and endpoint data after the interface is configured,
so an explicit command needs to be issued for any device driver wanting
to alter the polling interval of an endpoint.
Add usb_fixup_endpoint() to allow drivers to do this. The fixup must be
called after calculating endpoint bandwidth requirements but before any
URBs are submitted.
If polling intervals are shortened, any bandwidth reservations are no
longer valid but in practice polling intervals are only ever relaxed.
Limit the scope to interrupt transfers for now.
Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
Eric Anholt [Thu, 2 May 2019 22:24:04 +0000 (15:24 -0700)]
clk: bcm2835: Allow reparenting leaf clocks while they're running.
This falls under the same "we can reprogram glitch-free as long as we
pause generation" rule as updating the div/frac fields. This can be
used for runtime reclocking of V3D to manage power leakage.
Signed-off-by: Eric Anholt <eric@anholt.net>
Eric Anholt [Thu, 2 May 2019 22:11:05 +0000 (15:11 -0700)]
clk: bcm2835: Add support for setting leaf clock rates while running.
As long as you wait for !BUSY, you can do glitch-free updates of clock
rate while the clock is running.
Signed-off-by: Eric Anholt <eric@anholt.net>
Eric Anholt [Sat, 12 Jan 2019 01:31:07 +0000 (17:31 -0800)]
soc: bcm: bcm2835-pm: Add support for 2711.
Without the actual power management part any more, there's a lot less
to set up for V3D. We just need to clear the RSTN field for the power
domain, and expose the reset controller for toggling it again.
This is definitely incomplete -- the old ISP and H264 is in the old
bridge, but since we have no consumers of it I've just done the
minimum to get V3D working.
Signed-off-by: Eric Anholt <eric@anholt.net>
Phil Elwell [Wed, 23 Jan 2019 16:11:50 +0000 (16:11 +0000)]
clk-bcm2835: Don't wait for pllh lock
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Martin Sperl [Mon, 13 May 2019 11:05:27 +0000 (11:05 +0000)]
spi: bcm2835: enable shared interrupt support
Add shared interrupt support for this driver.
Signed-off-by: Martin Sperl <kernel@martin.sperl.org>
Tim Gover [Fri, 22 Mar 2019 09:47:14 +0000 (09:47 +0000)]
usb: xhci: Disable the XHCI 5 second timeout
If the VL805 EEPROM has not been programmed then boot will hang for five
seconds. The timeout seems to be arbitrary and is an unecessary
delay on the first boot. Remove the timeout.
This is common code and probably can't be upstreamed unless the timeout
can be configurable somehow or perhaps the XHCI driver can be skipped
on the first boot.
Jonathan Bell [Tue, 14 May 2019 16:17:59 +0000 (17:17 +0100)]
net: genet: enable link energy detect powerdown for external PHYs
There are several warts surrounding bcmgenet_mii_probe() as this
function is called from ndo_open, but it's calling registration-type
functions. The probe should be called at probe time and refactored
such that the PHY device data can be extracted to limit the scope
of this flag to Broadcom PHYs.
For now, pass this flag in as it puts our attached PHY into a low-power
state when disconnected.
Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
Phil Elwell [Wed, 27 Mar 2019 13:45:46 +0000 (13:45 +0000)]
bcmgenet: Better coalescing parameter defaults
Set defaults for TX and RX packet coalescing to be equivalent to:
# ethtool -C eth0 tx-frames 10
# ethtool -C eth0 rx-usecs 50
This may be something we want to set via DT parameters in the
future.
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Jonathan Bell [Wed, 12 Sep 2018 13:44:53 +0000 (14:44 +0100)]
bcmgenet: constrain max DMA burst length
popcornmix [Tue, 30 Apr 2019 18:15:30 +0000 (19:15 +0100)]
bcm2835-pcm.c: Support multichannel audio
Phil Elwell [Thu, 1 Nov 2018 17:31:37 +0000 (17:31 +0000)]
vchiq: 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).
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
staging/vchiq_arm: Fix bcm2711 compatible string
Fixes: "vchiq: Add 36-bit address support"
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Phil Elwell [Fri, 2 Aug 2019 14:20:11 +0000 (15:20 +0100)]
mmc: sdhci-iproc: Fix vmmc regulators on iProc
The Linux support for controlling card power via regulators appears to
be contentious. I would argue that the default behaviour is contrary to
the SDHCI spec - turning off the power writes a reserved value to the
SD Bus Voltage Select field of the Power Control Register, which
seems to kill the Arasan/iProc controller - but fortunately there is a
hook in sdhci_ops to override the behaviour. Borrow the implementation
from sdhci_arasan_set_power.
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Stefan Wahren [Sat, 4 May 2019 15:06:15 +0000 (17:06 +0200)]
hwrng: iproc-rng200: Add BCM2838 support
The HWRNG on the BCM2838 is compatible to iproc-rng200, so add the
support to this driver instead of bcm2835-rng.
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
hwrng: iproc-rng200: Correct SoC name
The Pi 4 SoC is called BCM2711, not BCM2838.
Fixes: "hwrng: iproc-rng200: Add BCM2838 support"
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Phil Elwell [Wed, 29 May 2019 14:47:42 +0000 (15:47 +0100)]
arm: bcm2835: DMA can only address 1GB
The legacy peripherals can only address the first gigabyte of RAM, so
ensure that DMA allocations are restricted to that region.
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Phil Elwell [Wed, 20 Feb 2019 08:49:39 +0000 (08:49 +0000)]
arm: bcm2835: Fix FIQ early ioremap
The ioremapping creates mappings within the vmalloc area. The
equivalent early function, create_mapping, now checks that the
requested explicit virtual address is between VMALLOC_START and
VMALLOC_END. As there is no reason to have any correlation between
the physical and virtual addresses, put the required mappings at
VMALLOC_START and above.
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Phil Elwell [Wed, 12 Jun 2019 16:15:05 +0000 (17:15 +0100)]
w1: w1-gpio: Make GPIO an output for strong pullup
The logic to drive the data line high to implement a strong pullup
assumed that the pin was already an output - setting a value does
not change an input.
See: https://github.com/raspberrypi/firmware/issues/1143
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Dave Stevenson [Thu, 2 May 2019 14:50:01 +0000 (15:50 +0100)]
staging: mmal-vchiq: Fix memory leak in error path
On error, vchiq_mmal_component_init could leave the
event context allocated for ports.
Clean them up in the error path.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Dave Stevenson [Wed, 1 May 2019 12:27:23 +0000 (13:27 +0100)]
staging: mmal-vchiq: Free the event context for control ports
vchiq_mmal_component_init calls init_event_context for the
control port, but vchiq_mmal_component_finalise didn't free
it, causing a memory leak..
Add the free call.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Dave Stevenson [Mon, 18 Feb 2019 15:52:29 +0000 (15:52 +0000)]
staging: mmal-vchiq: Update mmal_parameters.h with recently defined params
mmal_parameters.h hasn't been updated to reflect additions made
over the last few years. Update it to reflect the currently
supported parameters.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Dave Stevenson [Wed, 13 Feb 2019 12:33:29 +0000 (12:33 +0000)]
staging: mmal_vchiq: Add in the Bayer encoding formats
The list of formats was copied before Bayer support was added.
The ISP supports Bayer and is being supported by the bcm2835_codec
driver, so add in the encodings for them.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Dave Stevenson [Tue, 18 Sep 2018 10:08:51 +0000 (11:08 +0100)]
media: ov5647: Use gpiod_set_value_cansleep
All calls to the gpio library are in contexts that can sleep,
therefore there is no issue with having those GPIOs controlled
by controllers which require sleeping (eg I2C GPIO expanders).
Switch to using gpiod_set_value_cansleep instead of gpiod_set_value
to avoid triggering the warning in gpiolib should the GPIO
controller need to sleep.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Dave Stevenson [Thu, 24 Jan 2019 15:09:28 +0000 (15:09 +0000)]
clk: clk-bcm2835: Use %zd when printing size_t
The debug text for how many clocks have been registered
uses "%d" with a size_t. Correct it to "%zd".
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Dave Stevenson [Tue, 22 Jan 2019 12:04:09 +0000 (12:04 +0000)]
staging: mmal-vchiq: Fix client_component for 64 bit kernel
The MMAL client_component field is used with the event
mechanism to allow the client to identify the component for
which the event is generated.
The field is only 32bits in size, therefore we can't use a
pointer to the component in a 64 bit kernel.
Component handles are already held in an array per VCHI
instance, so use the array index as the client_component handle
to avoid having to create a new IDR for this purpose.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Dave Stevenson [Mon, 29 Oct 2018 17:57:45 +0000 (17:57 +0000)]
media: videobuf2: Allow exporting of a struct dmabuf
videobuf2 only allowed exporting a dmabuf as a file descriptor,
but there are instances where having the struct dma_buf is
useful within the kernel.
Split the current implementation into two, one step which
exports a struct dma_buf, and the second which converts that
into an fd.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Dave Stevenson [Mon, 24 Sep 2018 17:26:02 +0000 (18:26 +0100)]
staging: vc04_services: Support sending data to MMAL ports
Add the ability to send data to ports. This only supports
zero copy mode as the required bulk transfer setup calls
are not done.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Dave Stevenson [Mon, 24 Sep 2018 17:15:38 +0000 (18:15 +0100)]
staging: mmal-vchiq: Add support for event callbacks.
(Preparation for the codec driver).
The codec uses the event mechanism to report things such as
resolution changes. It is signalled by the cmd field of the buffer
being non-zero.
Add support for passing this information out to the client.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Dave Stevenson [Mon, 29 Oct 2018 16:20:46 +0000 (16:20 +0000)]
staging: mmal-vchiq: Avoid use of bool in structures
Fixes up a checkpatch error "Avoid using bool structure members
because of possible alignment issues".
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Dave Stevenson [Thu, 22 Nov 2018 17:31:06 +0000 (17:31 +0000)]
media: tc358743: Return an appropriate colorspace from tc358743_set_fmt
When calling tc358743_set_fmt, the code was calling tc358743_get_fmt
to choose a valid format. However that sets the colorspace
based on what was read back from the chip. When you set the format,
then the driver would choose and program the colorspace based
on the format code.
The result was that if you called try or set format for UYVY
when the current format was RGB3 then you would get told sRGB,
and try RGB3 when current was UYVY and you would get told
SMPTE170M.
The value programmed into the chip is determined by this driver,
therefore there is no need to read back the value. Return the
colorspace based on the format set/tried instead.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Dave Stevenson [Wed, 31 Oct 2018 14:59:40 +0000 (14:59 +0000)]
MAINTAINERS: Add entry for BCM2835 Unicam driver
Adds entry for the new BCM2835 Unicam (CSI-2 receiver) driver
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Dave Stevenson [Wed, 31 Oct 2018 14:59:06 +0000 (14:59 +0000)]
dt-bindings: Document BCM283x CSI2/CCP2 receiver
Document the DT bindings for the CSI2/CCP2 receiver peripheral
(known as Unicam) on BCM283x SoCs.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Acked-by: Rob Herring <robh@kernel.org>
Dave Stevenson [Wed, 31 Oct 2018 14:58:08 +0000 (14:58 +0000)]
media: videodev2: Add helper defines for printing FOURCCs
New helper defines that allow printing of a FOURCC using
printf(V4L2_FOURCC_CONV, V4L2_FOURCC_CONV_ARGS(fourcc));
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Dave Stevenson [Wed, 31 Oct 2018 14:57:56 +0000 (14:57 +0000)]
media: adv7180: Add YPrPb support for ADV7282M
The ADV7282M can support YPbPr on AIN1-3, but this was
not selectable from the driver. Add it to the list of
supported input modes.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Dave Stevenson [Wed, 31 Oct 2018 14:57:46 +0000 (14:57 +0000)]
media: adv7180: Default to the first valid input
The hardware default is differential CVBS on AIN1 & 2, which
isn't very useful.
Select the first input that is defined as valid for the
chip variant (typically CVBS_AIN1).
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Dave Stevenson [Wed, 31 Oct 2018 14:57:34 +0000 (14:57 +0000)]
media: tc358743: Check I2C succeeded during probe.
The probe for the TC358743 reads the CHIPID register from
the device and compares it to the expected value of 0.
If the I2C request fails then that also returns 0, so
the driver loads thinking that the device is there.
Generally I2C communications are reliable so there is
limited need to check the return value on every transfer,
therefore only amend the one read during probe to check
for I2C errors.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Dave Stevenson [Wed, 31 Oct 2018 14:57:21 +0000 (14:57 +0000)]
media: tc358743: Add support for 972Mbit/s link freq.
Adds register setups for running the CSI lanes at 972Mbit/s,
which allows 1080P50 UYVY down 2 lanes.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Philipp Zabel [Thu, 21 Sep 2017 15:30:24 +0000 (17:30 +0200)]
media: tc358743: fix connected/active CSI-2 lane reporting
g_mbus_config was supposed to indicate all supported lane numbers, not
only the number of those currently in active use. Since the TC358743
can dynamically reduce the number of active lanes if the required
bandwidth allows for it, report all lane numbers up to the connected
number of lanes as supported in pdata mode.
In device tree mode, do not report lane count and clock mode at all, as
the receiver driver can determine these from the device tree.
To allow communicating the number of currently active lanes, add a new
bitfield to the v4l2_mbus_config flags. This is a temporary fix, to be
used only until a better solution is found.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Dave Stevenson [Wed, 31 Oct 2018 14:56:59 +0000 (14:56 +0000)]
media: tc358743: Increase FIFO level to 374.
The existing fixed value of 16 worked for UYVY 720P60 over
2 lanes at 594MHz, or UYVY 1080P60 over 4 lanes. (RGB888
1080P60 needs 6 lanes at 594MHz).
It doesn't allow for lower resolutions to work as the FIFO
underflows.
374 is required for 1080P24-30 UYVY over 2 lanes @ 972Mbit/s, but
>374 means that the FIFO underflows on 1080P50 UYVY over 2 lanes
@ 972Mbit/s.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Dave Stevenson [Wed, 31 Oct 2018 14:56:47 +0000 (14:56 +0000)]
media: ov5647: Add support for non-continuous clock mode
The driver was only supporting continuous clock mode
although this was not stated anywhere.
Non-continuous clock saves a small amount of power and
on some SoCs is easier to interface with.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Dave Stevenson [Wed, 31 Oct 2018 14:56:33 +0000 (14:56 +0000)]
media: ov5647: Add support for PWDN GPIO.
Add support for an optional GPIO connected to PWDN on the sensor.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Dave Stevenson [Wed, 31 Oct 2018 14:55:37 +0000 (14:55 +0000)]
media: ov5647: Add set_fmt and get_fmt calls.
There's no way to query the subdevice for the supported
resolutions.
Add set_fmt and get_fmt implementations.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
P33M [Thu, 2 May 2019 10:53:45 +0000 (11:53 +0100)]
lan78xx: use default alignment for rx buffers
The lan78xx uses a 12-byte hardware rx header, so there is no need
to allocate SKBs with NET_IP_ALIGN set. Removes alignment faults
in both dwc_otg and in ipv6 processing.
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>
Phil Elwell [Fri, 20 Jul 2018 21:03:41 +0000 (22:03 +0100)]
bcm2835-dma: Add support for per-channel flags
Add the ability to interpret the high bits of the dreq specifier as
flags to be included in the DMA_CS register. The motivation for this
change is the ability to set the DISDEBUG flag for SD card transfers
to avoid corruption when using the VPU debugger.
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Phil Elwell [Tue, 5 Mar 2019 09:51:22 +0000 (09:51 +0000)]
lan78xx: EEE support is now a PHY property
Now that EEE support is a property of the PHY, use the PHY's DT node
when querying the EEE-related properties.
See: https://github.com/raspberrypi/linux/issues/2882
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Joshua Emele [Thu, 8 Nov 2018 00:07:40 +0000 (16:07 -0800)]
lan78xx: Debounce link events to minimize poll storm
The bInterval is set to 4 (i.e. 8 microframes => 1ms) and the only bit
that the driver pays attention to is "link was reset". If there's a
flapping status bit in that endpoint data, (such as if PHY negotiation
needs a few tries to get a stable link) then polling at a slower rate
would act as a de-bounce.
See: https://github.com/raspberrypi/linux/issues/2447
Dave Stevenson [Thu, 10 Jan 2019 17:58:06 +0000 (17:58 +0000)]
firmware: raspberrypi: Report the fw variant during probe
The driver already reported the firmware build date during probe.
The mailbox calls have been extended to also report the variant
1 = standard start.elf
2 = start_x.elf (includes camera stack)
3 = start_db.elf (includes assert logging)
4 = start_cd.elf (cutdown version for smallest memory footprint).
Log the variant during probe.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
firmware: raspberrypi: Report the fw git hash during probe
The firmware can now report the git hash from which it was built
via the mailbox, so report it during probe.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Phil Elwell [Mon, 26 Nov 2018 19:46:58 +0000 (19:46 +0000)]
net: lan78xx: Support auto-downshift to 100Mb/s
Ethernet cables with faulty or missing pairs (specifically pairs C and
D) allow auto-negotiation to 1000Mbs, but do not support the successful
establishment of a link. Add a DT property, "microchip,downshift-after",
to configure the number of auto-negotiation failures after which it
falls back to 100Mbs. Valid values are 2, 3, 4, 5 and 0, where 0 means
never downshift.
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
James Hughes [Fri, 2 Nov 2018 11:55:49 +0000 (11:55 +0000)]
Update issue templates (#2736)
Serge Schneider [Tue, 2 Oct 2018 10:14:15 +0000 (11:14 +0100)]
drivers: thermal: step_wise: avoid throttling at hysteresis temperature after dropping below it
Signed-off-by: Serge Schneider <serge@raspberrypi.org>
Ram Chandrasekar [Mon, 7 May 2018 17:54:08 +0000 (11:54 -0600)]
drivers: thermal: step_wise: add support for hysteresis
Step wise governor increases the mitigation level when the temperature
goes above a threshold and will decrease the mitigation when the
temperature falls below the threshold. If it were a case, where the
temperature hovers around a threshold, the mitigation will be applied
and removed at every iteration. This reaction to the temperature is
inefficient for performance.
The use of hysteresis temperature could avoid this ping-pong of
mitigation by relaxing the mitigation to happen only when the
temperature goes below this lower hysteresis value.
Signed-off-by: Ram Chandrasekar <rkumbako@codeaurora.org>
Signed-off-by: Lina Iyer <ilina@codeaurora.org>
Phil Elwell [Tue, 6 Nov 2018 12:57:48 +0000 (12:57 +0000)]
sc16is7xx: Don't spin if no data received
See: https://github.com/raspberrypi/linux/issues/2676
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Stefan Wahren [Sat, 13 Oct 2018 11:31:21 +0000 (13:31 +0200)]
firmware: raspberrypi: Add backward compatible get_throttled
Avoid a hard userspace ABI change by adding a compatible get_throttled
sysfs entry. Its value is now feed by the GET_THROTTLED requests of the
new hwmon driver. The first access to get_throttled will generate
a warning.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>