platform/kernel/linux-rpi.git
4 years agoMAINTAINERS: Add entry for BCM2835 Unicam driver
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>
4 years agodt-bindings: Document BCM283x CSI2/CCP2 receiver
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>
4 years agomedia: videodev2: Add helper defines for printing FOURCCs
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>
4 years agomedia: adv7180: Add YPrPb support for ADV7282M
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>
4 years agomedia: adv7180: Default to the first valid input
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>
4 years agomedia: tc358743: Check I2C succeeded during probe.
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>
4 years agomedia: tc358743: Add support for 972Mbit/s link freq.
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>
4 years agomedia: tc358743: fix connected/active CSI-2 lane reporting
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>
4 years agomedia: tc358743: Increase FIFO level to 374.
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>
4 years agomedia: ov5647: Add support for non-continuous clock mode
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>
4 years agomedia: ov5647: Add support for PWDN GPIO.
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>
4 years ago[media] Documentation: DT: add device tree for PWDN control
Dave Stevenson [Wed, 31 Oct 2018 14:55:59 +0000 (14:55 +0000)]
[media] Documentation: DT: add device tree for PWDN control

Add optional GPIO pwdn to connect to the PWDN line on the sensor.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
4 years agomedia: ov5647: Add set_fmt and get_fmt calls.
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>
4 years agosound: pcm512x-codec: Adding 352.8kHz samplerate support
Klaus Schulz [Thu, 16 May 2019 11:35:32 +0000 (13:35 +0200)]
sound: pcm512x-codec: Adding 352.8kHz samplerate support

4 years agoAdded IQaudIO Pi-Codec board support (#2969)
IQaudIO [Mon, 13 May 2019 20:53:05 +0000 (21:53 +0100)]
Added IQaudIO Pi-Codec board support (#2969)

Add support for the IQaudIO Pi-Codec board.

Signed-off-by: Gordon <gordon@iqaudio.com>
Fixed 48k timing issue

ASoC: iqaudio-codec: use modern dai_link style

Signed-off-by: Hui Wang <hui.wang@canonical.com>
4 years agolan78xx: use default alignment for rx buffers
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.

4 years agoAudiophonics I-Sabre 9038Q2M DAC driver
FERHAT Nicolas [Fri, 5 Apr 2019 12:06:42 +0000 (13:06 +0100)]
Audiophonics I-Sabre 9038Q2M DAC driver

Signed-off-by: Audiophonics <contact@audiophonics.fr>
ASoC: i-sabre-q2m: use modern dai_link style

Signed-off-by: Hui Wang <hui.wang@canonical.com>
4 years 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>
4 years agodrm: vc4: Programming the CTM is conditional on running full KMS
Dave Stevenson [Tue, 19 Feb 2019 15:18:25 +0000 (15:18 +0000)]
drm: vc4: Programming the CTM is conditional on running full KMS

vc4_ctm_commit writes to HVS registers, so this is only applicable
when in full KMS mode, not in firmware KMS mode. Add this conditional.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
4 years agobcm2835-dma: Add support for per-channel flags
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>
4 years agogpu: vc4_firmware_kms: Fix up 64 bit compile warnings.
Dave Stevenson [Mon, 28 Jan 2019 14:40:16 +0000 (14:40 +0000)]
gpu: vc4_firmware_kms: Fix up 64 bit compile warnings.

Resolve two build warnings with regard using incorrectly
sized parameters in logging messages on 64 bit builds.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
4 years agoRevert "staging: bcm2835-audio: Drop DT dependency"
popcornmix [Fri, 15 Mar 2019 21:11:10 +0000 (21:11 +0000)]
Revert "staging: bcm2835-audio: Drop DT dependency"

This reverts commit b7491a9fca2dc2535b9dc922550a37c5baae9d3d.

4 years agoRevert "staging: vchiq: delete vchiq_killable.h"
Phil Elwell [Wed, 6 Mar 2019 16:28:09 +0000 (16:28 +0000)]
Revert "staging: vchiq: delete vchiq_killable.h"

This reverts commit 2da56630b1cc422f58408033102b8f91ae97bc91.

4 years agolan78xx: EEE support is now a PHY property
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>
4 years agoconfigs: Enable the AD193x codecs
Phil Elwell [Thu, 7 Feb 2019 18:16:25 +0000 (18:16 +0000)]
configs: Enable the AD193x codecs

See: https://github.com/raspberrypi/linux/issues/2850

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
4 years agoAdded driver for the HiFiBerry DAC+ ADC (#2694)
HiFiBerry [Mon, 8 Oct 2018 16:10:12 +0000 (18:10 +0200)]
Added driver for the HiFiBerry DAC+ ADC (#2694)

Signed-off-by: Daniel Matuschek <daniel@hifiberry.com>
hifiberry_dacplusadc: switch to snd_soc_dai_set_bclk_ratio

Signed-off-by: Matthias Reichl <hias@horus.com>
ASoC: hifiberry_dacplusadc: fix DAI link setup

The driver only defines a single DAI link and the code that tries
to setup the second (non-existent) DAI link looks wrong - using dmic
as a CPU/platform driver doesn't make any sense.

The DT overlay doesn't define a dmic property, so the code was never
executed (otherwise it would have resulted in a memory corruption).

So drop the offending code to prevent issues if a dmic property
should be added to the DT overlay.

Signed-off-by: Matthias Reichl <hias@horus.com>
ASoC: hifiberry_dacplusadc: use modern dai_link style

Signed-off-by: Matthias Reichl <hias@horus.com>
4 years agospi: spi-bcm2835: Disable forced software CS
Phil Elwell [Tue, 15 Jan 2019 12:41:15 +0000 (12:41 +0000)]
spi: spi-bcm2835: Disable forced software CS

With GPIO CS used by the DTBs, allow hardware CS to be selected by an
overlay.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
4 years agospi: spi-bcm2835: Re-enable HW CS
Phil Elwell [Tue, 15 Jan 2019 12:39:50 +0000 (12:39 +0000)]
spi: spi-bcm2835: Re-enable HW CS

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
4 years agoASoC: Add support for AudioSense-Pi add-on soundcard
b-ak [Wed, 2 Jan 2019 18:31:08 +0000 (00:01 +0530)]
ASoC: Add support for AudioSense-Pi add-on soundcard

AudioSense-Pi is a RPi HAT based on a TI's TLV320AIC32x4 stereo codec

This hardware provides multiple audio I/O capabilities to the RPi.
The codec connects to the RPi's SoC through the I2S Bus.

The following devices can be connected through a 3.5mm jack
1. Line-In: Plain old audio in from mobile phones, PCs, etc.,
2. Mic-In: Connect a microphone
3. Line-Out: Connect the output to a speaker
4. Headphones: Connect a Headphone w or w/o microphones

Multiple Inputs:
It supports the following combinations
1. Two stereo Line-Inputs and a microphone
2. One stereo Line-Input and two microphones
3. Two stereo Line-Inputs, a microphone and
one mono line-input (with h/w hack)
4. One stereo Line-Input, two microphones and
one mono line-input (with h/w hack)

Multiple Outputs:
Audio output can be routed to the headphones or
speakers (with additional hardware)

Signed-off-by: b-ak <anur.bhargav@gmail.com>
ASoC: audiosense-pi: use modern dai_link style

Signed-off-by: Hui Wang <hui.wang@canonical.com>
4 years agolan78xx: Debounce link events to minimize poll storm
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

4 years agofirmware: raspberrypi: Report the fw variant during probe
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>
4 years agostaging: bcm2835-camera: Ensure H264 header bytes get a sensible timestamp
Dave Stevenson [Mon, 29 Oct 2018 14:21:04 +0000 (14:21 +0000)]
staging: bcm2835-camera: Ensure H264 header bytes get a sensible timestamp

H264 header come from VC with 0 timestamps, which means they get a
strange timestamp when processed with VC/kernel start times,
particularly if used with the inline header option.
Remember the last frame timestamp and use that if set, or otherwise
use the kernel start time.

https://github.com/raspberrypi/linux/issues/1836

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
4 years agonet: lan78xx: Support auto-downshift to 100Mb/s
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>
4 years agogpiolib: Don't prevent IRQ usage of output GPIOs
Phil Elwell [Tue, 24 Apr 2018 13:42:27 +0000 (14:42 +0100)]
gpiolib: Don't prevent IRQ usage of output GPIOs

Upstream Linux deems using output GPIOs to generate IRQs as a bogus
use case, even though the BCM2835 GPIO controller is capable of doing
so. A number of users would like to make use of this facility, so
disable the checks.

See: https://github.com/raspberrypi/linux/issues/2527

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
4 years agoUpdate issue templates (#2736)
James Hughes [Fri, 2 Nov 2018 11:55:49 +0000 (11:55 +0000)]
Update issue templates (#2736)

4 years agodrivers: thermal: step_wise: avoid throttling at hysteresis temperature after droppin...
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>
4 years agodrivers: thermal: step_wise: add support for hysteresis
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>
4 years agosc16is7xx: Don't spin if no data received
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>
4 years agofirmware: raspberrypi: Add backward compatible get_throttled
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>
4 years agohwmon: raspberrypi: Prevent voltage low warnings from filling log
Stefan Wahren [Sat, 6 Oct 2018 14:46:18 +0000 (16:46 +0200)]
hwmon: raspberrypi: Prevent voltage low warnings from filling log

Although the correct fix for low voltage warnings is to
improve the power supply, the current implementation
of the detection can fill the log if the warning
happens freqently. This replaces the logging with
slightly custom ratelimited logging.

Signed-off-by: James Hughes <james.hughes@raspberrypi.org>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
4 years agovchiq_2835_arm: Implement a DMA pool for small bulk transfers (#2699)
detule [Tue, 2 Oct 2018 08:10:08 +0000 (04:10 -0400)]
vchiq_2835_arm: Implement a DMA pool for small bulk transfers (#2699)

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>
4 years agocxd2880: CXD2880_SPI_DRV should select DVB_CXD2880 with MEDIA_SUBDRV_AUTOSELECT
popcornmix [Mon, 17 Sep 2018 16:31:18 +0000 (17:31 +0100)]
cxd2880: CXD2880_SPI_DRV should select DVB_CXD2880 with MEDIA_SUBDRV_AUTOSELECT

4 years agoAdd rpi-poe-fan driver
Serge Schneider [Mon, 9 Jul 2018 11:54:25 +0000 (12:54 +0100)]
Add rpi-poe-fan driver

Signed-off-by: Serge Schneider <serge@raspberrypi.org>
PoE HAT driver cleanup

* Fix undeclared variable in rpi_poe_fan_suspend
* Add SPDX-License-Identifier
* Expand PoE acronym in Kconfig help
* Give clearer error message on of_property_count_u32_elems fail
* Add documentation
* Add vendor to of_device_id compatible string.
* Rename m_data_s struct to fw_data_s
* Fix typos

Fixes: #2665

Signed-off-by: Serge Schneider <serge@raspberrypi.org>
4 years agolan78xx: Move enabling of EEE into PHY init code
Phil Elwell [Thu, 5 Apr 2018 13:46:11 +0000 (14:46 +0100)]
lan78xx: Move enabling of EEE into PHY init code

Enable EEE mode as soon as possible after connecting to the PHY, and
before phy_start. This avoids a second link negotiation, which speeds
up booting and stops the interface failing to become ready.

See: https://github.com/raspberrypi/linux/issues/2437

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
4 years agobrcmfmac: Re-enable firmware roaming support
Phil Elwell [Wed, 20 Jun 2018 11:20:01 +0000 (12:20 +0100)]
brcmfmac: Re-enable firmware roaming support

As of 4.18, a firmware that implements the update_connect_params
method but doesn't claim to support roaming causes an error. We
disabled firmware roaming in 4.4 [1] because it appeared to
prevent disconnects, but let's try with the current firmware to see
if things have improved.

[1] https://github.com/raspberrypi/linux/commit/dd9188011786fb62a7960922f31e8e086fb2009b

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
4 years agonet: lan78xx: Disable TCP Segmentation Offload (TSO)
Dave Stevenson [Wed, 13 Jun 2018 14:21:10 +0000 (15:21 +0100)]
net: lan78xx: Disable TCP Segmentation Offload (TSO)

TSO seems to be having issues when packets are dropped and the
remote end uses Selective Acknowledge (SACK) to denote that
data is missing. The missing data is never resent, so the
connection eventually stalls.

There is a module parameter of enable_tso added to allow
further debugging without forcing a rebuild of the kernel.

https://github.com/raspberrypi/linux/issues/2449
https://github.com/raspberrypi/linux/issues/2482

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
4 years agoof: configfs: Use of_overlay_fdt_apply API call
Phil Elwell [Thu, 14 Jun 2018 14:07:26 +0000 (15:07 +0100)]
of: configfs: Use of_overlay_fdt_apply API call

The published API to the dynamic overlay application mechanism now
takes a Flattened Device Tree blob as input so that it can manage the
lifetime of the unflattened tree. Conveniently, the new API call -
of_overlay_fdt_apply - is virtually a drop-in replacement for
create_overlay, which can now be deleted.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
4 years agoirqchip: irq-bcm2835: Calc. FIQ_START at boot-time
Phil Elwell [Thu, 14 Jun 2018 10:21:04 +0000 (11:21 +0100)]
irqchip: irq-bcm2835: Calc. FIQ_START at boot-time

ad83c7cb2f37 ("irqchip/irq-bcm2836: Add support for DT interrupt polarity")
changed the way that the BCM2836/7 local interrupts are mapped; instead
of being pre-mapped they are now mapped on-demand. A side effect of this
change is that the call to irq_of_parse_and_map from armctrl_of_init
creates a new mapping, forming a gap between the IRQs and the FIQs. This
 gap breaks the FIQ<->IRQ mapping which up to now has been done by assuming:

1) that the value of FIQ_START is the same as the number of normal IRQs
that will be mapped (still true), and

2) that this value is also the offset between an IRQ and its equivalent
FIQ (which is no longer the case).

Remove both assumptions by measuring the interval between the last IRQ
and the last FIQ, passing it as the parameter to init_FIQ().

Fixes: https://github.com/raspberrypi/linux/issues/2432

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
4 years agofirmware/raspberrypi: Notify firmware of a reboot
Phil Elwell [Sat, 12 May 2018 20:35:43 +0000 (21:35 +0100)]
firmware/raspberrypi: Notify firmware of a reboot

Register for reboot notifications, sending RPI_FIRMWARE_NOTIFY_REBOOT
over the mailbox interface on reception.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
4 years agoAdd ability to export gpio used by gpio-poweroff
Nick Bulleid [Thu, 10 May 2018 20:57:02 +0000 (21:57 +0100)]
Add ability to export gpio used by gpio-poweroff

Signed-off-by: Nick Bulleid <nedbulleid@fastmail.com>
Added export feature to gpio-poweroff documentation

Signed-off-by: Nick Bulleid <nedbulleid@fastmail.com>
4 years agohid: Reduce default mouse polling interval to 60Hz
popcornmix [Mon, 14 Jul 2014 21:02:09 +0000 (22:02 +0100)]
hid: Reduce default mouse polling interval to 60Hz

Reduces overhead when using X

4 years agolan78xx: Read initial EEE status from DT
Phil Elwell [Fri, 9 Mar 2018 12:01:00 +0000 (12:01 +0000)]
lan78xx: Read initial EEE status from DT

Add two new DT properties:
* microchip,eee-enabled  - a boolean to enable EEE
* microchip,tx-lpi-timer - time in microseconds to wait before entering
                           low power state

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
4 years agoadded capture_clear option to pps-gpio via dtoverlay (#2433)
hdoverobinson [Tue, 13 Mar 2018 10:58:39 +0000 (06:58 -0400)]
added capture_clear option to pps-gpio via dtoverlay (#2433)

4 years agoi2c-gpio: Also set bus numbers from reg property
Phil Elwell [Tue, 20 Feb 2018 10:07:27 +0000 (10:07 +0000)]
i2c-gpio: Also set bus numbers from reg property

I2C busses can be assigned specific bus numbers using aliases in
Device Tree - string properties where the name is the alias and the
value is the path to the node. The current DT parameter mechanism
does not allow property names to be derived from a parameter value
in any way, so it isn't possible to generate unique or matching
aliases for nodes from an overlay that can generate multiple
instances, e.g. i2c-gpio.

Work around this limitation (at least temporarily) by allowing
the i2c adapter number to be initialised from the "reg" property
if present.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
4 years agodrm/vc4: Don't wait for vblank on fkms cursor updates.
Eric Anholt [Mon, 5 Feb 2018 18:53:18 +0000 (18:53 +0000)]
drm/vc4: Don't wait for vblank on fkms cursor updates.

We don't use the same async update path between fkms and normal kms,
and the normal kms workaround ended up making us wait.  This became a
larger problem in rpi-4.14.y, as the USB HID update rate throttling
got (accidentally?) dropped.

Signed-off-by: Eric Anholt <eric@anholt.net>
4 years agogpu:vc4-fkms: Update driver to not use plane->crtc.
Dave Stevenson [Tue, 19 Feb 2019 15:06:31 +0000 (15:06 +0000)]
gpu:vc4-fkms: Update driver to not use plane->crtc.

Following on from
commit 2f958af7fc248 ("drm/vc4: Stop updating plane->fb/crtc")
do the same in the firmwarekms driver and look at plane_state->crtc
instead.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
4 years agovc4_firmware_kms: fix build
popcornmix [Sun, 17 Jun 2018 12:22:07 +0000 (13:22 +0100)]
vc4_firmware_kms: fix build

4 years agodrm/vc4: Remove duplicate primary/cursor fields from FKMS driver.
Eric Anholt [Mon, 5 Feb 2018 18:22:03 +0000 (18:22 +0000)]
drm/vc4: Remove duplicate primary/cursor fields from FKMS driver.

The CRTC has those fields and we can just use them.

Signed-off-by: Eric Anholt <eric@anholt.net>
4 years agodrm/vc4: Skip SET_CURSOR_INFO when the cursor contents didn't change.
Eric Anholt [Mon, 5 Feb 2018 18:02:30 +0000 (18:02 +0000)]
drm/vc4: Skip SET_CURSOR_INFO when the cursor contents didn't change.

Signed-off-by: Eric Anholt <eric@anholt.net>
4 years agodrm/vc4: Fix warning about vblank interrupts before DRM core is ready.
Eric Anholt [Mon, 5 Feb 2018 18:01:02 +0000 (18:01 +0000)]
drm/vc4: Fix warning about vblank interrupts before DRM core is ready.

The SMICS interrupt fires continuously, but since it's 1/100 the rate
of the USB interrupts, we don't really need a way to turn it off.  We
do need to make sure that we don't tell DRM about it until DRM has
asked for the interrupt at least once, because otherwise it will throw
a warning at boot time.

Signed-off-by: Eric Anholt <eric@anholt.net>
4 years agovc4_fkms: Apply firmware overscan offset to hardware cursor
popcornmix [Tue, 18 Apr 2017 20:43:46 +0000 (21:43 +0100)]
vc4_fkms: Apply firmware overscan offset to hardware cursor

4 years agodrm/vc4: Add missing enable/disable vblank handlers in fkms.
Eric Anholt [Tue, 30 Jan 2018 22:21:02 +0000 (14:21 -0800)]
drm/vc4: Add missing enable/disable vblank handlers in fkms.

Fixes hang at boot in 4.14.

Signed-off-by: Eric Anholt <eric@anholt.net>
4 years agodrm/vc4: Add FB modifier support to firmwarekms.
Eric Anholt [Wed, 7 Jun 2017 21:39:49 +0000 (14:39 -0700)]
drm/vc4: Add FB modifier support to firmwarekms.

Signed-off-by: Eric Anholt <eric@anholt.net>
(cherry picked from commit 11752d73488e08aaeb65fe8289a9c016acde26c2)

4 years agodrm/vc4: Add support for setting DPMS in firmwarekms.
Eric Anholt [Thu, 6 Jul 2017 18:45:48 +0000 (11:45 -0700)]
drm/vc4: Add support for setting DPMS in firmwarekms.

This ensures that the screen goes blank during DPMS (screensaver),
including the cursor.  Planes don't necessarily get disabled during
CRTC disable, so we need to be careful to not leave them on or turn
them back on early.

Signed-off-by: Eric Anholt <eric@anholt.net>
4 years agodrm/vc4: Fix sending of page flip completion events in FKMS mode.
Eric Anholt [Thu, 2 Feb 2017 17:42:18 +0000 (09:42 -0800)]
drm/vc4: Fix sending of page flip completion events in FKMS mode.

In the rewrite of vc4_crtc.c for fkms, I dropped the part of the
CRTC's atomic flush handler that moved the completion event from the
proposed atomic state change to the CRTC's current state.  That meant
that when full screen pageflipping happened (glxgears -fullscreen in
X, compton, por weston), the app would end up blocked firever waiting
to draw its next frame.

Signed-off-by: Eric Anholt <eric@anholt.net>
4 years agodrm/vc4: Add DRM_DEBUG_ATOMIC for the insides of fkms.
Eric Anholt [Thu, 2 Feb 2017 01:10:09 +0000 (17:10 -0800)]
drm/vc4: Add DRM_DEBUG_ATOMIC for the insides of fkms.

Trying to debug weston on fkms involved figuring out what calls I was
making to the firmware.

Signed-off-by: Eric Anholt <eric@anholt.net>
4 years agodrm/vc4: Name the primary and cursor planes in fkms.
Eric Anholt [Thu, 2 Feb 2017 01:09:18 +0000 (17:09 -0800)]
drm/vc4: Name the primary and cursor planes in fkms.

This makes debugging nicer, compared to trying to remember what the
IDs are.

Signed-off-by: Eric Anholt <eric@anholt.net>
4 years agodrm/vc4: Add a mode for using the closed firmware for display.
Eric Anholt [Wed, 14 Sep 2016 07:39:33 +0000 (08:39 +0100)]
drm/vc4: Add a mode for using the closed firmware for display.

Signed-off-by: Eric Anholt <eric@anholt.net>
4 years agoraspberrypi-firmware: Export the general transaction function.
Eric Anholt [Wed, 14 Sep 2016 08:16:19 +0000 (09:16 +0100)]
raspberrypi-firmware: Export the general transaction function.

The vc4-firmware-kms module is going to be doing the MBOX FB call.

Signed-off-by: Eric Anholt <eric@anholt.net>
4 years agoserial: 8250: bcm2835aux - suppress EPROBE_DEFER
Phil Elwell [Mon, 22 Jan 2018 17:26:38 +0000 (17:26 +0000)]
serial: 8250: bcm2835aux - suppress EPROBE_DEFER

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
4 years agoARM: Activate FIQs to avoid __irq_startup warnings
Phil Elwell [Mon, 11 Dec 2017 09:18:32 +0000 (09:18 +0000)]
ARM: Activate FIQs to avoid __irq_startup warnings

There is a new test in __irq_startup that the IRQ is activated, which
hasn't been the case for FIQs since they bypass some of the usual setup.

Augment enable_fiq to include a call to irq_activate to avoid the
warning.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
4 years agodwc-otg: FIQ: Fix "bad mode in data abort handler"
Phil Elwell [Mon, 16 Jul 2018 13:40:13 +0000 (14:40 +0100)]
dwc-otg: FIQ: Fix "bad mode in data abort handler"

Create a semi-static mapping for the USB registers early in the boot
process, before additional kernel threads are started, so all threads
will have the mappings from the start. This avoids the need for
data aborts to lazily update them.

See: https://github.com/raspberrypi/linux/issues/2450

Signed-off-by: Floris Bos <bos@je-eigen-domein.nl>
4 years agoARM: bcm2835: Set Serial number and Revision
Noralf Trønnes [Wed, 3 Jun 2015 10:26:13 +0000 (12:26 +0200)]
ARM: bcm2835: Set Serial number and Revision

The VideoCore bootloader passes in Serial number and
Revision number through Device Tree. Make these available to
userspace through /proc/cpuinfo.

Mainline status:

There is a commit in linux-next that standardize passing the serial
number through Device Tree (string: /serial-number):
ARM: 8355/1: arch: Show the serial number from devicetree in cpuinfo

There was an attempt to do the same with the revision number, but it
didn't get in:
[PATCH v2 1/2] arm: devtree: Set system_rev from DT revision

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
4 years agocgroup: Disable cgroup "memory" by default
Phil Elwell [Mon, 27 Nov 2017 17:14:54 +0000 (17:14 +0000)]
cgroup: Disable cgroup "memory" by default

Some Raspberry Pis have limited RAM and most users won't use the
cgroup memory support so it is disabled by default. Enable with:

    cgroup_enable=memory

See: https://github.com/raspberrypi/linux/issues/1950

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
4 years agoAXI performance monitor driver (#2222)
James Hughes [Tue, 14 Nov 2017 15:13:15 +0000 (15:13 +0000)]
AXI performance monitor driver (#2222)

Uses the debugfs I/F to provide access to the AXI
bus performance monitors.

Requires the new mailbox peripheral access for access
to the VPU performance registers, system bus access
is done using direct register reads.

Signed-off-by: James Hughes <james.hughes@raspberrypi.org>
raspberrypi_axi_monitor: suppress warning

Suppress the following warning by casting the pointer to and uintptr_t
before to u32:

Signed-off-by: Matteo Croce <mcroce@redhat.com>
4 years agocache: export clean and invalidate
popcornmix [Fri, 25 Aug 2017 18:18:13 +0000 (19:18 +0100)]
cache: export clean and invalidate

hack: cache: Fix linker error

4 years agoRevert "build/arm64: Add rules for .dtbo files for dts overlays"
Phil Elwell [Mon, 26 Nov 2018 21:01:18 +0000 (21:01 +0000)]
Revert "build/arm64: Add rules for .dtbo files for dts overlays"

DT build rules are now in the common top-level Makefile.

This reverts commit dce5b0fbdd2174f7fc9b27f4e89877a33169239a.

4 years agobuild/arm64: Add rules for .dtbo files for dts overlays
Khem Raj [Sat, 11 Feb 2017 01:57:08 +0000 (17:57 -0800)]
build/arm64: Add rules for .dtbo files for dts overlays

We now create overlays as .dtbo files.

Signed-off-by: Khem Raj <raj.khem@gmail.com>
4 years agoARM64: Force hardware emulation of deprecated instructions.
Michael Zoran [Sat, 11 Feb 2017 09:18:31 +0000 (01:18 -0800)]
ARM64: Force hardware emulation of deprecated instructions.

4 years agoARM64: Round-Robin dispatch IRQs between CPUs.
Michael Zoran [Sun, 15 Jan 2017 05:43:57 +0000 (21:43 -0800)]
ARM64: Round-Robin dispatch IRQs between CPUs.

IRQ-CPU mapping is round robined on ARM64 to increase
concurrency and allow multiple interrupts to be serviced
at a time.  This reduces the need for FIQ.

Signed-off-by: Michael Zoran <mzoran@crowfest.net>
4 years agoconfig: Add default configs
popcornmix [Mon, 13 Apr 2015 16:16:29 +0000 (17:16 +0100)]
config: Add default configs

4 years agohci_h5: Don't send conf_req when ACTIVE
Phil Elwell [Thu, 17 Dec 2015 13:37:07 +0000 (13:37 +0000)]
hci_h5: Don't send conf_req when ACTIVE

Without this patch, a modem and kernel can continuously bombard each
other with conf_req and conf_rsp messages, in a demented game of tag.

4 years agobrcm: adds support for BCM43341 wifi
Cheong2K [Fri, 26 Feb 2016 10:20:10 +0000 (18:20 +0800)]
brcm: adds support for BCM43341 wifi

brcmfmac: Disable power management

Disable wireless power saving in the brcmfmac WLAN driver. This is a
temporary measure until the connectivity loss resulting from power
saving is resolved.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
brcmfmac: Use original country code as a fallback

Commit 73345fd212980d2e28a5c6d83801c903bd773680:

    brcmfmac: Configure country code using device specific settings

prevents region codes from working on devices that lack a region code
translation table. In the event of an absent table, preserve the old
behaviour of using the provided code as-is.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
brcmfmac: Plug memory leak in brcmf_fill_bss_param

See: https://github.com/raspberrypi/linux/issues/1471

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
brcmfmac: do not use internal roaming engine by default

Some evidence of curing disconnects with this disabled, so make it a default.
Can be overridden with module parameter roamoff=0
See: http://projectable.me/optimize-my-pi-wi-fi/

brcmfmac: Change stop_ap sequence

Patch from Broadcom/Cypress to resolve a customer error

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
4 years agoOF: DT-Overlay configfs interface
Pantelis Antoniou [Wed, 3 Dec 2014 11:23:28 +0000 (13:23 +0200)]
OF: DT-Overlay configfs interface

This is a port of Pantelis Antoniou's v3 port that makes use of the
new upstreamed configfs support for binary attributes.

Original commit message:

Add a runtime interface to using configfs for generic device tree overlay
usage. With it its possible to use device tree overlays without having
to use a per-platform overlay manager.

Please see Documentation/devicetree/configfs-overlays.txt for more info.

Changes since v2:
- Removed ifdef CONFIG_OF_OVERLAY (since for now it's required)
- Created a documentation entry
- Slight rewording in Kconfig

Changes since v1:
- of_resolve() -> of_resolve_phandles().

Originally-signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
DT configfs: Fix build errors on other platforms

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
DT configfs: fix build error

There is an error when compiling rpi-4.6.y branch:
  CC      drivers/of/configfs.o
drivers/of/configfs.c:291:21: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
   .default_groups = of_cfs_def_groups,
                     ^
drivers/of/configfs.c:291:21: note: (near initialization for 'of_cfs_subsys.su_group.default_groups.next')

The .default_groups is linked list since commit
1ae1602de028acaa42a0f6ff18d19756f8e825c6.
This commit uses configfs_add_default_group to fix this problem.

Signed-off-by: Slawomir Stepien <sst@poczta.fm>
configfs: New of_overlay API

4 years agonet: Add non-mainline source for rtl8192cu wlan
popcornmix [Mon, 3 Sep 2012 16:10:23 +0000 (17:10 +0100)]
net: Add non-mainline source for rtl8192cu wlan

We are now syncing with version from:
https://github.com/pvaret/rtl8192cu-fixes

4 years agobcm2835-virtgpio: Virtual GPIO driver
popcornmix [Tue, 23 Feb 2016 19:56:04 +0000 (19:56 +0000)]
bcm2835-virtgpio: Virtual GPIO driver

Add a virtual GPIO driver that uses the firmware mailbox interface to
request that the VPU toggles LEDs.

4 years agorpi_display: add backlight driver and overlay
P33M [Wed, 21 Oct 2015 13:55:21 +0000 (14:55 +0100)]
rpi_display: add backlight driver and overlay

Add a mailbox-driven backlight controller for the Raspberry Pi DSI
touchscreen display. Requires updated GPU firmware to recognise the
mailbox request.

Signed-off-by: Gordon Hollingworth <gordon@raspberrypi.org>
Add Raspberry Pi firmware driver to the dependencies of backlight driver

Otherwise the backlight driver fails to build if the firmware
loading driver is not in the kernel

Signed-off-by: Alex Riesen <alexander.riesen@cetitec.com>
4 years agoASoC: Create a generic Pi Hat WM8804 driver
Tim Gover [Sat, 21 Jul 2018 19:07:46 +0000 (20:07 +0100)]
ASoC: Create a generic Pi Hat WM8804 driver

Reduce the amount of duplicated code by creating a generic driver for
Pi Hat digi cards using the WM8804 codec.

This replaces the
Allo DigiOne, Hifiberry Digi/Pro, JustBoom Digi and IQAudIO Digi
dedicate soundcard drivers with a generic driver.

There are no significant changes to the runtime behavior of the drivers
and end users should not have to change any configuration settings
after upgrading.

Minor changes
* Check the return value of snd_soc_component_update_bits
* Added some pr_debug tracing
* Various checkpatch tidyups
* Updated allodigi-one to use use 128FS at > 96 Khz. This appears to
  be an omission in the original driver code so followed the Hifiberry
  DAC driver approach.

ASoC: rpi-wm8804-soundcard: use modern dai_link style

Signed-off-by: Matthias Reichl <hias@horus.com>
rpi-wm8804-soundcard: drop PWRDN register writes

Since kernel 4.0 the PWRDN register bits are under DAPM
control from the wm8804 driver.

Drop code that modifies that register to avoid interfering
with DAPM.

Signed-off-by: Matthias Reichl <hias@horus.com>
rpi-wm8804-soundcard: configure wm8804 clocks only on rate change

This should avoid clicks when stopping and immediately afterwards
starting a stream with the same samplerate as before.

Signed-off-by: Matthias Reichl <hias@horus.com>
rpi-wm8804-soundcard: Fixed MCLKDIV for Allo Digione

The Allo Digione board wants a fixed MCLKDIV of 256.

See: https://github.com/raspberrypi/linux/issues/3296

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
4 years agoASoC: Add Kconfig and Makefile for sound/soc/bcm
popcornmix [Mon, 3 Sep 2018 16:00:36 +0000 (17:00 +0100)]
ASoC: Add Kconfig and Makefile for sound/soc/bcm

Signed-off-by: popcornmix <popcornmix@gmail.com>
4 years agoASoC: Add generic RPI driver for simple soundcards.
Tim Gover [Wed, 27 Jun 2018 14:59:12 +0000 (15:59 +0100)]
ASoC: Add generic RPI driver for simple soundcards.

The RPI simple sound card driver provides a generic ALSA SOC card driver
supporting a variety of Pi HAT soundcards. The intention is to avoid
the duplication of code for cards that can't be fully supported by
the soc simple/graph cards but are otherwise almost identical.

This initial commit adds support for the ADAU1977 ADC, Google VoiceHat,
HifiBerry AMP, HifiBerry DAC and RPI DAC.

Signed-off-by: Tim Gover <tim.gover@raspberrypi.org>
ASoC: Use correct card name in rpi-simple driver

Use the specific card name from drvdata instead of the snd_rpi_simple

rpi-simple-soundcard: Use nicer driver name "RPi-simple"

Rename the driver from "RPI simple soundcard" to "RPi-simple" so that
the driver name won't be mangled allowing to be used unaltered as the
card conf filename.

ASoC: rpi-simple-soundcard: use modern dai_link style

Signed-off-by: Hui Wang <hui.wang@canonical.com>
4 years agoDriver and overlay for Allo Katana DAC
allocom [Thu, 19 Apr 2018 06:42:26 +0000 (12:12 +0530)]
Driver and overlay for Allo Katana DAC

Allo Katana DAC: Updated default values

Signed-off-by: Jaikumar <jaikumar@cem-solutions.com>
Added mute stream func

Signed-off-by: Jaikumar <jaikumar@cem-solutions.net>
codecs: Correct Katana minimum volume

Update Katana minimum volume to get the exact 0.5 dB value in each step.

Signed-off-by: Sudeep Kumar <sudeepkumar@cem-solutions.net>
4 years agoDriver support for Google voiceHAT soundcard.
Peter Malkin [Mon, 27 Mar 2017 23:38:21 +0000 (16:38 -0700)]
Driver support for Google voiceHAT soundcard.

ASoC: googlevoicehat-codec: Use correct device when grabbing GPIO

The fixup for the VoiceHAT in 4.18 incorrectly tried to find the
sdmode GPIO pin under the card device, not the codec device.
This failed, and therefore caused the device probe to fail.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
ASoC: googlevoicehat-codec: Reformat for kernel coding standards

Fix all whitespace, indentation, and bracing errors.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
ASoC: googlevoicehat-codec: Make driver function structure const

Make voicehat_component_driver a const structure.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
ASoC: googlevoicehat-codec: Only convert from ms to jiffies once

Minor optimisation and allows to become checkpatch clean.
A msec value is read out of DT or from a define, and convert once to
jiffies, rather than every time that it is used.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
4 years agoAdd support for the AudioInjector.net Octo sound card
Matt Flax [Wed, 8 Mar 2017 09:04:13 +0000 (20:04 +1100)]
Add support for the AudioInjector.net Octo sound card

AudioInjector Octo: sample rates, regulators, reset

This patch adds new sample rates to the Audioinjector Octo sound card. The
new supported rates are (in kHz) :
96, 48, 32, 24, 16, 8, 88.2, 44.1, 29.4, 22.05, 14.7

Reference the bcm270x DT regulators in the overlay.

This patch adds a reset GPIO for the AudioInjector.net octo sound card.

Audioinjector octo : Make the playback and capture symmetric

This patch ensures that the sample rate and channel count of the audioinjector
octo sound card are symmetric.

audioinjector-octo: Add continuous clock feature

By user request, add a switch to prevent the clocks being stopped when
the stream is paused, stopped or shutdown. Provide access to the switch
by adding a 'non-stop-clocks' parameter to the audioinjector-addons
overlay.

See: https://github.com/raspberrypi/linux/issues/2409

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
sound: Fixes for audioinjector-octo under 4.19

1. Move the DT alias declaration to the I2C shim in the cases
where the shim is enabled. This works around a problem caused by a
4.19 commit [1] that generates DT/OF uevents for I2C drivers.

2. Fix the diagnostics in an error path of the soundcard driver to
correctly identify the reason for the failure to load.

3. Move the declaration of the clock node in the overlay outside
the I2C node to avoid warnings.

4. Sort the overlay nodes so that dependencies are only to earlier
fragments, in an attempt to get runtime dtoverlay application to
work (it still doesn't...)

See: https://github.com/Audio-Injector/Octo/issues/14
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
[1] af503716ac14 ("i2c: core: report OF style module alias for devices registered via OF")

ASoC: audioinjector-octo-soundcard: use modern dai_link style

Signed-off-by: Hui Wang <hui.wang@canonical.com>
4 years agoAdd support for Fe-Pi audio sound card. (#1867)
Fe-Pi [Wed, 1 Mar 2017 11:42:43 +0000 (04:42 -0700)]
Add support for Fe-Pi audio sound card. (#1867)

Fe-Pi Audio Sound Card is based on NXP SGTL5000 codec.
Mechanical specification of the board is the same the Raspberry Pi Zero.
3.5mm jacks for Headphone/Mic, Line In, and Line Out.

Signed-off-by: Henry Kupis <fe-pi@cox.net>
ASoC: fe-pi-audio: use modern dai_link style

Signed-off-by: Hui Wang <hui.wang@canonical.com>
4 years agosound: Support for Dion Audio LOCO-V2 DAC-AMP HAT
Miquel [Fri, 24 Feb 2017 19:51:06 +0000 (20:51 +0100)]
sound: Support for Dion Audio LOCO-V2 DAC-AMP HAT

Signed-off-by: Miquel Blauw <info@dionaudio.nl>
ASoC: dionaudio_loco-v2: fix S24_LE format

Remove set_bclk_ratio call so 24-bit data is transmitted in
24 bclk cycles.

Also remove hw_params and ops as they are no longer needed.

Signed-off-by: Matthias Reichl <hias@horus.com>
ASoC: dionaudio_loco-v2: use modern dai_link style

Signed-off-by: Hui Wang <hui.wang@canonical.com>
4 years agoASoC: Add driver for Cirrus Logic Audio Card
Matthias Reichl [Sun, 22 Jan 2017 11:49:37 +0000 (12:49 +0100)]
ASoC: Add driver for Cirrus Logic Audio Card

Note: due to problems with deferred probing of regulators
the following softdep should be added to a modprobe.d file

softdep arizona-spi pre: arizona-ldo1

Signed-off-by: Matthias Reichl <hias@horus.com>
ASoC: rpi-cirrus: use modern dai_link style

Signed-off-by: Matthias Reichl <hias@horus.com>
4 years agoSupport for Blokas Labs pisound board
gtrainavicius [Sun, 23 Oct 2016 09:06:53 +0000 (12:06 +0300)]
Support for Blokas Labs pisound board

Pisound dynamic overlay (#1760)

Restructuring pisound-overlay.dts, so it can be loaded and unloaded dynamically using dtoverlay.

Print a logline when the kernel module is removed.

pisound improvements:

* Added a writable sysfs object to enable scripts / user space software
to blink MIDI activity LEDs for variable duration.
* Improved hw_param constraints setting.
* Added compatibility with S16_LE sample format.
* Exposed some simple placeholder volume controls, so the card appears
in volumealsa widget.

Add missing SND_PISOUND selects dependency to SND_RAWMIDI

Without it the Pisound module fails to compile.
See https://github.com/raspberrypi/linux/issues/2366

Updates for Pisound module code:

* Merged 'Fix a warning in DEBUG builds' (1c8b82b).
* Updating some strings and copyright information.
* Fix for handling high load of MIDI input and output.
* Use dual rate oversampling ratio for 96kHz instead of single
  rate one.

Signed-off-by: Giedrius Trainavicius <giedrius@blokas.io>
Fixing memset call in pisound.c

Signed-off-by: Giedrius Trainavicius <giedrius@blokas.io>
Fix for Pisound's MIDI Input getting blocked for a while in rare cases.

There was a possible race condition which could lead to Input's FIFO queue
to be underflown, causing high amount of processing in the worker thread for
some period of time.

Signed-off-by: Giedrius Trainavicius <giedrius@blokas.io>
Fix for Pisound kernel module in Real Time kernel configuration.

When handler of data_available interrupt is fired, queue_work ends up
getting called and it can block on a spin lock which is not allowed in
interrupt context. The fix was to run the handler from a thread context
instead.

Pisound: Remove spinlock usage around spi_sync

ASoC: pisound: use modern dai_link style

Signed-off-by: Hui Wang <hui.wang@canonical.com>
ASoC: pisound: fix the parameter for spi_device_match

Signed-off-by: Hui Wang <hui.wang@canonical.com>
4 years agoAdd support for Allo Boss DAC add-on board for Raspberry Pi. (#1924)
BabuSubashChandar [Tue, 28 Mar 2017 14:34:42 +0000 (20:04 +0530)]
Add support for Allo Boss DAC add-on board for Raspberry Pi. (#1924)

Signed-off-by: Baswaraj K <jaikumar@cem-solutions.net>
Reviewed-by: Deepak <deepak@zilogic.com>
Reviewed-by: BabuSubashChandar <babusubashchandar@zilogic.com>
Add support for new clock rate and mute gpios.

Signed-off-by: Baswaraj K <jaikumar@cem-solutions.net>
Reviewed-by: Deepak <deepak@zilogic.com>
Reviewed-by: BabuSubashChandar <babusubashchandar@zilogic.com>
ASoC: allo-boss-dac: fix S24_LE format

Remove set_bclk_ratio call so 24-bit data is transmitted in
24 bclk cycles.

Signed-off-by: Matthias Reichl <hias@horus.com>
ASoC: allo-boss-dac: transmit S24_LE with 64 BCLK cycles

Signed-off-by: Matthias Reichl <hias@horus.com>
allo-boss-dac: switch to snd_soc_dai_set_bclk_ratio

Signed-off-by: Matthias Reichl <hias@horus.com>
ASoC: allo-boss-dac: use modern dai_link style

Signed-off-by: Hui Wang <hui.wang@canonical.com>
4 years agoAdd support for Allo Piano DAC 2.1 plus add-on board for Raspberry Pi.
Raashid Muhammed [Mon, 27 Mar 2017 07:05:00 +0000 (12:35 +0530)]
Add support for Allo Piano DAC 2.1 plus add-on board for Raspberry Pi.

The Piano DAC 2.1 has support for 4 channels with subwoofer.

Signed-off-by: Baswaraj K <jaikumar@cem-solutions.net>
Reviewed-by: Vijay Kumar B. <vijaykumar@zilogic.com>
Reviewed-by: Raashid Muhammed <raashidmuhammed@zilogic.com>
Add clock changes and mute gpios (#1938)

Also improve code style and adhere to ALSA coding conventions.

Signed-off-by: Baswaraj K <jaikumar@cem-solutions.net>
Reviewed-by: Vijay Kumar B. <vijaykumar@zilogic.com>
Reviewed-by: Raashid Muhammed <raashidmuhammed@zilogic.com>
PianoPlus: Dual Mono & Dual Stereo features added (#2069)

allo-piano-dac-plus: Master volume added + fixes

Master volume added, which controls both DACs volumes.

See: https://github.com/raspberrypi/linux/pull/2149

Also fix initial max volume, default mode value, and unmute.

Signed-off-by: allocom <sparky-dev@allo.com>
ASoC: allo-piano-dac-plus: fix S24_LE format

Remove set_bclk_ratio call so 24-bit data is transmitted in
24 bclk cycles.

Signed-off-by: Matthias Reichl <hias@horus.com>
sound: bcm: Fix memset dereference warning

This warning appears with GCC 6.4.0 from toolchains.bootlin.com:

../sound/soc/bcm/allo-piano-dac-plus.c: In function ‘snd_allo_piano_dac_init’:
../sound/soc/bcm/allo-piano-dac-plus.c:711:30: warning: argument to ‘sizeof’ in ‘memset’ call is the same expression as the destination; did you mean to dereference it? [-Wsizeof-pointer-memaccess]
  memset(glb_ptr, 0x00, sizeof(glb_ptr));
                              ^

Suggested-by: Phil Elwell <phil@raspberrypi.org>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
ASoC: allo-piano-dac-plus: use modern dai_link style

Signed-off-by: Hui Wang <hui.wang@canonical.com>
4 years agoAllo Piano DAC boards: Initial 2 channel (stereo) support (#1645)
Clive Messer [Mon, 19 Sep 2016 13:01:04 +0000 (14:01 +0100)]
Allo Piano DAC boards: Initial 2 channel (stereo) support (#1645)

Add initial 2 channel (stereo) support for Allo Piano DAC (2.0/2.1) boards,
using allo-piano-dac-pcm512x-audio overlay and allo-piano-dac ALSA ASoC
machine driver.

NB. The initial support is 2 channel (stereo) ONLY!
(The Piano DAC 2.1 will only support 2 channel (stereo) left/right output,
 pending an update to the upstream pcm512x codec driver, which will have
 to be submitted via upstream. With the initial downstream support,
 provided by this patch, the Piano DAC 2.1 subwoofer outputs will
 not function.)

Signed-off-by: Baswaraj K <jaikumar@cem-solutions.net>
Signed-off-by: Clive Messer <clive.messer@digitaldreamtime.co.uk>
Tested-by: Clive Messer <clive.messer@digitaldreamtime.co.uk>
ASoC: allo-piano-dac: fix S24_LE format

Remove set_bclk_ratio call so 24-bit data is transmitted in
24 bclk cycles.

Also remove hw_params and ops as they are no longer needed.

Signed-off-by: Matthias Reichl <hias@horus.com>
ASoC: allo-piano-dac: use modern dai_link style

Signed-off-by: Hui Wang <hui.wang@canonical.com>