Boris Brezillon [Fri, 2 Dec 2016 13:48:12 +0000 (14:48 +0100)]
ARM: dts: bcm283x: Add VEC node in bcm283x.dtsi
Add the VEC (Video EnCoder) node definition in bcm283x.dtsi.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
(cherry picked from commit
b899c45208d6f204a6da9a1132577993eeecf0fb)
Eric Anholt [Wed, 10 Feb 2016 19:42:32 +0000 (11:42 -0800)]
drm/vc4: Add DSI driver
The DSI0 and DSI1 blocks on the 2835 are related hardware blocks.
Some registers move around, and the featureset is slightly different,
as DSI1 (the 4-lane DSI) is a later version of the hardware block.
This driver doesn't yet enable DSI0, since we don't have any hardware
to test against, but it does put a lot of the register definitions and
code in place.
Signed-off-by: Eric Anholt <eric@anholt.net>
Eric Anholt [Thu, 11 Feb 2016 00:17:29 +0000 (16:17 -0800)]
drm/vc4: Add support for feeding DSI encoders from the pixel valve.
We have to set a different pixel format, which tells the hardware to
use the pix_width field that's fed in sideband from the DSI encoder to
divide the "pixel" clock.
Signed-off-by: Eric Anholt <eric@anholt.net>
Eric Anholt [Thu, 15 Sep 2016 14:25:23 +0000 (15:25 +0100)]
drm/vc4: Set up SCALER_DISPCTRL at boot.
We want the HVS on, obviously, and we also want DSP3 (PV1's source) to
be muxed from HVS channel 2 like we expect in vc4_crtc.c. The
firmware wasn't setting the DSP3 mux up when both the LCD and HDMI
were disabled.
Signed-off-by: Eric Anholt <eric@anholt.net>
Boris Brezillon [Fri, 2 Dec 2016 13:48:10 +0000 (14:48 +0100)]
drm/vc4: Add support for the VEC (Video Encoder) IP
The VEC IP is a TV DAC, providing support for PAL and NTSC standards.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
(cherry picked from commit
e4b81f8c74c82dbc0cb0e5ceb5ef9b713b325fc9)
Boris Brezillon [Fri, 2 Dec 2016 13:48:08 +0000 (14:48 +0100)]
drm: Turn DRM_MODE_SUBCONNECTOR_xx definitions into an enum
List of values like the DRM_MODE_SUBCONNECTOR_xx ones are better
represented with enums.
Turn the DRM_MODE_SUBCONNECTOR_xx macros into an enum.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Eric Anholt <eric@anholt.net>
(cherry picked from commit
dee7a4fee730ca8908f335b6b66174cba4598ecd)
Boris Brezillon [Fri, 2 Dec 2016 13:48:09 +0000 (14:48 +0100)]
drm: Add TV connector states to drm_connector_state
Some generic TV connector properties are exposed in drm_mode_config, but
they are currently handled independently in each DRM encoder driver.
Extend the drm_connector_state to store TV related states, and modify the
drm_atomic_connector_{set,get}_property() helpers to fill the connector
state accordingly.
Each driver is then responsible for checking and applying the new config
in its ->atomic_mode_{check,set}() operations.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Eric Anholt <eric@anholt.net>
(cherry picked from commit
299a16b163c95fbe1e3b1e142ba9c6ce9dab2c23)
Jonas Pfeil [Mon, 7 Nov 2016 23:18:39 +0000 (00:18 +0100)]
drm/vc4: Add fragment shader threading support
FS threading brings performance improvements of 0-20% in glmark2.
The validation code checks for thread switch signals and ensures that
the registers of the other thread are not touched, and that our clamps
are not live across thread switches. It also checks that the
threading and branching instructions do not interfere.
(Original patch by Jonas, changes by anholt for style cleanup,
removing validation the kernel doesn't need to do, and adding the flag
for userspace).
v2: Minor style fixes from checkpatch.
Signed-off-by: Jonas Pfeil <pfeiljonas@gmx.de>
Signed-off-by: Eric Anholt <eric@anholt.net>
(cherry picked from commit
c778cc5df944291dcdb1ca7a6bb781fbc22550c5)
Eric Anholt [Fri, 4 Nov 2016 01:53:10 +0000 (18:53 -0700)]
drm/vc4: Add support for rendering with ETC1 textures.
The validation for it ends up being quite simple, but I hadn't got
around to it before merging the driver. For backwards compatibility,
we also need to add a flag so that the userspace GL driver can easily
tell if the kernel will allow ETC1 textures (on an old kernel, it will
continue to convert to RGBA8)
Signed-off-by: Eric Anholt <eric@anholt.net>
(cherry picked from commit
7154d76fedf549607afbc0d13db9aaf02da5cebf)
Eric Anholt [Thu, 2 Jun 2016 22:09:35 +0000 (15:09 -0700)]
BCM270X: Enable the DSI panel node in the VC4 overlay.
Signed-off-by: Eric Anholt <eric@anholt.net>
Eric Anholt [Tue, 13 Dec 2016 23:15:10 +0000 (15:15 -0800)]
ARM: bcm2835: dt: Add the DSI module nodes and clocks.
The modules stay disabled by default, and if you want to enable DSI
you'll need an overlay that connects a panel to it.
Signed-off-by: Eric Anholt <eric@anholt.net>
Eric Anholt [Thu, 2 Jun 2016 19:29:45 +0000 (12:29 -0700)]
BCM270X: Add the DSI panel to the defconfig.
Signed-off-by: Eric Anholt <eric@anholt.net>
Eric Anholt [Tue, 26 Apr 2016 20:46:13 +0000 (13:46 -0700)]
drm/panel: Add support for the Raspberry Pi 7" Touchscreen.
This driver communicates with the Atmel microcontroller for sequencing
the poweron of the TC358762 DSI-DPI bridge and controlling the
backlight PWM.
The following lines are required in config.txt, to keep the firmware
from trying to bash our I2C lines and steal the DSI interrupts:
disable_touchscreen=1
ignore_lcd=2
mask_gpu_interrupt1=0x1000
This means that the firmware won't power on the panel at boot time (no
rainbow) and the touchscreen input won't work. The native input
driver for the touchscreen still needs to be written.
v2: Set the same default orientation as the closed source firmware
used, which is the best for viewing angle.
Signed-off-by: Eric Anholt <eric@anholt.net>
Eric Anholt [Tue, 17 Jan 2017 20:31:57 +0000 (07:31 +1100)]
clk: bcm2835: Add leaf clock measurement support, disabled by default
This proved incredibly useful during debugging of the DSI driver, to
see if our clocks were running at rate we requested. Let's leave it
here for the next person interacting with clocks on the platform (and
so that hopefully we can just hook it up to debugfs some day).
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
(cherry picked from commit
3f9195811d8d829556c4cd88d3f9e56a80d5ba60)
Eric Anholt [Tue, 17 Jan 2017 20:31:56 +0000 (07:31 +1100)]
clk: bcm2835: Register the DSI0/DSI1 pixel clocks.
The DSI pixel clocks are muxed from clocks generated in the analog phy
by the DSI driver. In order to set them as parents, we need to do the
same name lookup dance on them as we do for our root oscillator.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
(cherry picked from commit
8a39e9fa578229fd4604266c6ebb1a3a77d7994c)
Eric Anholt [Tue, 17 Jan 2017 20:31:55 +0000 (07:31 +1100)]
clk: bcm2835: Don't rate change PLLs on behalf of DSI PLL dividers.
Our core PLLs are intended to be configured once and left alone. With
the SET_RATE_PARENT, asking to set the PLLD_DSI1 clock rate would
change PLLD just to get closer to the requested DSI clock, thus
changing PLLD_PER, the UART and ethernet PHY clock rates downstream of
it, and breaking ethernet.
We *do* want PLLH to change so that PLLH_AUX can be exactly the value
we want, though. Thus, we need to have a per-divider policy of
whether to pass rate changes up.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
(cherry picked from commit
55486091bd1e1c5ed28c43c0d6b3392468a9adb5)
Boris Brezillon [Mon, 12 Dec 2016 08:00:53 +0000 (09:00 +0100)]
clk: bcm: Fix 'maybe-uninitialized' warning in bcm2835_clock_choose_div_and_prate()
best_rate is reported as potentially uninitialized by gcc.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Fixes: 155e8b3b0ee3 ("clk: bcm: Support rate change propagation on bcm2835 clocks")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
(cherry picked from commit
2aab7a2055a1705c9e30920d95a596226999eb21)
Boris Brezillon [Thu, 1 Dec 2016 21:00:20 +0000 (22:00 +0100)]
clk: bcm: Allow rate change propagation to PLLH_AUX on VEC clock
The VEC clock requires needs to be set at exactly 108MHz. Allow rate
change propagation on PLLH_AUX to match this requirement wihtout
impacting other IPs (PLLH is currently only used by the HDMI encoder,
which cannot be enabled when the VEC encoder is enabled).
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
(cherry picked from commit
d86d46af84855403c00018be1c3e7bc190f2a6cd)
Boris Brezillon [Thu, 1 Dec 2016 21:00:19 +0000 (22:00 +0100)]
clk: bcm: Support rate change propagation on bcm2835 clocks
Some peripheral clocks, like the VEC (Video EnCoder) clock need to be set
to a precise rate (in our case 108MHz). With the current implementation,
where peripheral clocks are not allowed to forward rate change requests
to their parents, it is impossible to match this requirement unless the
bootloader has configured things correctly, or a specific rate has been
assigned through the DT (with the assigned-clk-rates property).
Add a new field to struct bcm2835_clock_data to specify which parent
clocks accept rate change propagation, and support set rate propagation
in bcm2835_clock_determine_rate().
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
(cherry picked from commit
155e8b3b0ee320ae866b97dd31eba8a1f080a772)
Martin Cerveny [Mon, 13 Feb 2017 16:23:47 +0000 (17:23 +0100)]
dwc_otg: fix summarize urb->actual_length for isochronous transfers
Kernel does not copy input data of ISO transfers to userspace
if actual_length is set only in ISO transfers and not summarized
in urb->actual_length. Fixes raspberrypi/linux#903
Claggy3 [Sat, 11 Feb 2017 14:00:30 +0000 (14:00 +0000)]
Update vfpmodule.c
Christopher Alexander Tobias Schulze - May 2, 2015, 11:57 a.m.
This patch fixes a problem with VFP state save and restore related
to exception handling (panic with message "BUG: unsupported FP
instruction in kernel mode") present on VFP11 floating point units
(as used with ARM1176JZF-S CPUs, e.g. on first generation Raspberry
Pi boards). This patch was developed and discussed on
https://github.com/raspberrypi/linux/issues/859
A precondition to see the crashes is that floating point exception
traps are enabled. In this case, the VFP11 might determine that a FPU
operation needs to trap at a point in time when it is not possible to
signal this to the ARM11 core any more. The VFP11 will then set the
FPEXC.EX bit and store the trapped opcode in FPINST. (In some cases,
a second opcode might have been accepted by the VFP11 before the
exception was detected and could be reported to the ARM11 - in this
case, the VFP11 also sets FPEXC.FP2V and stores the second opcode in
FPINST2.)
If FPEXC.EX is set, the VFP11 will "bounce" the next FPU opcode issued
by the ARM11 CPU, which will be seen by the ARM11 as an undefined opcode
trap. The VFP support code examines the FPEXC.EX and FPEXC.FP2V bits
to decide what actions to take, i.e., whether to emulate the opcodes
found in FPINST and FPINST2, and whether to retry the bounced instruction.
If a user space application has left the VFP11 in this "pending trap"
state, the next FPU opcode issued to the VFP11 might actually be the
VSTMIA operation vfp_save_state() uses to store the FPU registers
to memory (in our test cases, when building the signal stack frame).
In this case, the kernel crashes as described above.
This patch fixes the problem by making sure that vfp_save_state() is
always entered with FPEXC.EX cleared. (The current value of FPEXC has
already been saved, so this does not corrupt the context. Clearing
FPEXC.EX has no effects on FPINST or FPINST2. Also note that many
callers already modify FPEXC by setting FPEXC.EN before invoking
vfp_save_state().)
This patch also addresses a second problem related to FPEXC.EX: After
returning from signal handling, the kernel reloads the VFP context
from the user mode stack. However, the current code explicitly clears
both FPEXC.EX and FPEXC.FP2V during reload. As VFP11 requires these
bits to be preserved, this patch disables clearing them for VFP
implementations belonging to architecture 1. There should be no
negative side effects: the user can set both bits by executing FPU
opcodes anyway, and while user code may now place arbitrary values
into FPINST and FPINST2 (e.g., non-VFP ARM opcodes) the VFP support
code knows which instructions can be emulated, and rejects other
opcodes with "unhandled bounce" messages, so there should be no
security impact from allowing reloading FPEXC.EX and FPEXC.FP2V.
Signed-off-by: Christopher Alexander Tobias Schulze <cat.schulze@alice-dsl.net>
Phil Elwell [Thu, 9 Feb 2017 14:40:33 +0000 (14:40 +0000)]
sound: Suppress error message about deferrals
Since driver load deferrals are expected and will already
have resulted in a kernel message, suppress an essentially
duplicate error message from the RPi audio board drivers.
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Phil Elwell [Thu, 9 Feb 2017 14:36:44 +0000 (14:36 +0000)]
sound: Demote deferral errors to INFO level
At present there is no mechanism to specify driver load order,
which can lead to deferrals and repeated retries until successful.
Since this situation is expected, reduce the dmesg level to
INFO and mention that the operation will be retried.
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Phil Elwell [Thu, 9 Feb 2017 14:33:30 +0000 (14:33 +0000)]
irq-bcm2836: Avoid "Invalid trigger warning"
Initialise the level for each IRQ to avoid a warning from the
arm arch timer code.
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Matthias Reichl [Sun, 22 Jan 2017 11:49:37 +0000 (12:49 +0100)]
config: enable Cirrus Logic Audio Card
Signed-off-by: Matthias Reichl <hias@horus.com>
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>
Matthias Reichl [Sun, 22 Jan 2017 11:49:36 +0000 (12:49 +0100)]
BCM270x DT: Consolidate audio card overlays
Reference 3.3V / 5V system rails instead of instantiating local
regulators.
Add missing power supply properties for codecs where these are
required according to the DT bindings docs.
Signed-off-by: Matthias Reichl <hias@horus.com>
Matthias Reichl [Sun, 22 Jan 2017 11:49:36 +0000 (12:49 +0100)]
BCM270x DT: expose 3.3V and 5V system rails
Signed-off-by: Matthias Reichl <hias@horus.com>
Matthias Reichl [Sun, 22 Jan 2017 11:49:36 +0000 (12:49 +0100)]
config: Enable regulator support
Signed-off-by: Matthias Reichl <hias@horus.com>
JamesH65 [Mon, 6 Feb 2017 15:24:47 +0000 (15:24 +0000)]
gpio_mem: Remove unnecessary dev_info output (#1830)
The open function was spamming syslog every time
called, so have removed call completely.
ED6E0F17 [Fri, 3 Feb 2017 14:52:42 +0000 (14:52 +0000)]
usb: dwc2: Avoid suspending if we're in gadget mode (#1825)
I've found when booting HiKey with the usb gadget cable attached
if I then try to connect via adb, I get an infinite spew of:
dwc2
f72c0000.usb: dwc2_hsotg_ep_sethalt(ep
ffffffc0790ecb18 ep1out, 0)
dwc2
f72c0000.usb: dwc2_hsotg_ep_sethalt(ep
ffffffc0790eca18 ep1in, 0)
It seems that the usb autosuspend is suspending the bus shortly
after bootup when the gadget cable is attached. So when adbd
then tries to use the device, it doesn't work and it then tries
to restart it over and over via the ep_sethalt calls (via
FUNCTIONFS_CLEAR_HALT ioctl).
Chen Yu suggested this patch to avoid suspending if we're
in device mode, and it avoids the problem.
Cc: Wei Xu <xuwei5@hisilicon.com>
Cc: Guodong Xu <guodong.xu@linaro.org>
Cc: Amit Pundir <amit.pundir@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: John Youn <johnyoun@synopsys.com>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Chen Yu <chenyu56@huawei.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Felipe Balbi <felipe.balbi@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
Suggested-by: Chen Yu <chenyu56@huawei.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Scott Ellis [Fri, 27 Jan 2017 11:42:42 +0000 (06:42 -0500)]
Add overlay for mcp3008 adc (#1818)
Some example usage:
SPI0.0
dtparam=spi=on
dtoverlay=mcp3008:spi0-0-present
SPI0.1
dtparam=spi=on
dtoverlay=mcp3008:spi0-1-present
SPI0.0 and SPI0.1
dtparam=spi=on
dtoverlay=mcp3008:spi0-0-present,spi0-1-present
SPI1.0
dtparam=spi=on
dtoverlay=spi1-1cs
dtoverlay=mcp3008:spi1-0-present
SPI1.2
dtparam=spi=on
dtoverlay=spi1-1cs:cs0_pin=16
dtoverlay=mcp3008:spi1-0-present
SPI1.0 and SPI1.1
dtoverlay=spi1-2cs
dtoverlay=mcp3008:spi1-0-present,spi1-1-present
Changing the speed
SPI0.0
dtparam=spi=on
dtoverlay=mcp3008:spi0-0-present,spi0-0-speed=
2000000
Phil Elwell [Wed, 25 Jan 2017 21:17:23 +0000 (21:17 +0000)]
config: Add SND_SOC_ADAU7002 codec module
As there is now an overlay requiring it, build the codec module.
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
chris johnson [Sun, 22 Jan 2017 03:27:31 +0000 (03:27 +0000)]
ASoC: A simple-card overlay for ADAU7002
Usage: `dtoverlay=adau7002-simple`
popcornmix [Wed, 25 Jan 2017 11:30:38 +0000 (11:30 +0000)]
config: Add additional network scheduling modules
Phil Elwell [Mon, 23 Jan 2017 17:36:50 +0000 (17:36 +0000)]
BCM270X_DT: Add reference to audio_pins to CM dtb
The CM1 dtb contains an empty audio_pins node, but no reference to it.
Adding the usual pinctrl reference from the audio node enables the
audremap overlay (and others) to easily turn on audio.
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Michael Zoran [Sun, 15 Jan 2017 05:46:04 +0000 (21:46 -0800)]
ARM64: Use dwc_otg driver by default for USB.
If it breaks on anybody, they can use the standard device tree
overlays to switch back to the dwc2 driver.
Signed-off-by: Michael Zoran <mzoran@crowfest.net>
Michael Zoran [Sun, 15 Jan 2017 05:45:03 +0000 (21:45 -0800)]
ARM64: Enable DWC_OTG Driver In ARM64 Build Config(bcmrpi3_defconfig)
Signed-off-by: Michael Zoran <mzoran@crowfest.net>
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>
Michael Zoran [Sun, 15 Jan 2017 05:33:51 +0000 (21:33 -0800)]
ARM64/DWC_OTG: Port dwc_otg driver to ARM64
In ARM64, the FIQ mechanism used by this driver is not current
implemented. As a workaround, reqular IRQ is used instead
of FIQ.
In a separate change, the 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.
Tests Run:
This mechanism is most likely to break when multiple USB devices
are attached at the same time. So the system was tested under
stress.
Devices:
1. USB Speakers playing back a FLAC audio through VLC
at 96KHz.(Higher then typically, but supported on my speakers).
2. sftp transferring large files through the buildin ethernet
connection which is connected through USB.
3. Keyboard and mouse attached and being used.
Although I do occasionally hear some glitches, the music seems to
play quite well.
Signed-off-by: Michael Zoran <mzoran@crowfest.net>
Phil Elwell [Tue, 17 Jan 2017 14:39:39 +0000 (14:39 +0000)]
config: Add CONFIG_MD_M25P80 and CONFIG_MD_SPI_NOR
See: https://github.com/raspberrypi/linux/issues/1781
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Phil Elwell [Tue, 17 Jan 2017 11:34:58 +0000 (11:34 +0000)]
BCM270X_DT: Enable UART0 on CM3
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
popcornmix [Mon, 16 Jan 2017 16:33:54 +0000 (16:33 +0000)]
config: Add CONFIG_TCP_CONG_BBR
See: https://github.com/raspberrypi/linux/issues/1784
Phil Elwell [Fri, 1 Jul 2016 21:09:24 +0000 (22:09 +0100)]
spi-bcm2835: Disable forced software CS
Select software CS in bcm2708_common.dtsi, and disable the automatic
conversion in the driver to allow hardware CS to be re-enabled with an
overlay.
See: https://github.com/raspberrypi/linux/issues/1547
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Phil Elwell [Mon, 16 Jan 2017 14:53:12 +0000 (14:53 +0000)]
BCM270X_DT: Add spi0-cs overlay
The spi0-cs overlay allows the software chip selectts to be modified
using the cs0_pin and cs1_pin parameters.
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Michael Zoran [Sun, 15 Jan 2017 15:31:59 +0000 (07:31 -0800)]
ARM64: Enable RTL8187/RTL8192CU wifi in build config
These drivers build now, so they can be enabled back
in the build configuration just like they are for
32 bit.
Signed-off-by: Michael Zoran <mzoran@crowfest.net>
Michael Zoran [Sun, 15 Jan 2017 15:25:18 +0000 (07:25 -0800)]
ARM64: Fix build break for RTL8187/RTL8192CU wifi
These drivers use an ASM function from the base
system to compute the ipv6 checksum. These functions
are not available on ARM64, probably because nobody
has bother to write them. The base system does have
a generic "C" version, so a simple fix is to include
the header to use the generic version on ARM64 only.
A longer term solution would be to submit the necessary
ASM function to the upstream source.
With this change, these drivers now compile without
any errors on ARM64.
Signed-off-by: Michael Zoran <mzoran@crowfest.net>
Electron752 [Sat, 14 Jan 2017 10:54:26 +0000 (02:54 -0800)]
ARM64: Enable Kernel Address Space Randomization (#1792)
Randomization allows the mapping between virtual addresses and physical
address to be different on each boot. This makes it more difficult
to exploit security vulnerabilities that require knowledge of fixed
hardware addresses.
The firmware generates a 8 byte random number during bootup and stores
it in the device tree under chosen/kaslr-seed. This number is used
to randomize the address mapping.
This change enables this feature in the build configuration for ARM64.
Signed-off-by: Michael Zoran <mzoran@crowfest.net>
Electron752 [Thu, 12 Jan 2017 15:07:08 +0000 (07:07 -0800)]
ARM64: Make it work again on 4.9 (#1790)
* Invoke the dtc compiler with the same options used in arm mode.
* ARM64 now uses the bcm2835 platform just like ARM32.
* ARM64: Update bcmrpi3_defconfig
Signed-off-by: Michael Zoran <mzoran@crowfest.net>
Phil Elwell [Wed, 11 Jan 2017 13:01:21 +0000 (13:01 +0000)]
BCM270X_DT: Add pi3-disable-wifi overlay
pi3-disable-wifi is a minimal overlay to disable the onboard WiFi.
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Aaron Shaw [Tue, 10 Jan 2017 16:11:04 +0000 (16:11 +0000)]
Add driver_name paramater
Add driver_name parameter for use with 5.1 passthrough audio in LibreElec and other Kodi OSs
Aaron Shaw [Tue, 10 Jan 2017 16:05:41 +0000 (16:05 +0000)]
Add driver_name property
Add driver name property for use with 5.1 passthrough audio in LibreElec and other Kodi based OSs
Giedrius Trainavicius [Thu, 5 Jan 2017 00:38:16 +0000 (02:38 +0200)]
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.
Signed-off-by: Giedrius Trainavicius <giedrius@blokas.io>
Phil Elwell [Tue, 3 Jan 2017 21:27:46 +0000 (21:27 +0000)]
Document the si7020 option
Alex Tucker [Tue, 13 Dec 2016 19:50:18 +0000 (19:50 +0000)]
Add support for Silicon Labs Si7013/20/21 humidity/temperature sensor.
popcornmix [Sat, 31 Dec 2016 14:15:50 +0000 (14:15 +0000)]
arm64: Add CONFIG_ARCH_BCM2835
Noralf Trønnes [Tue, 1 Nov 2016 14:15:41 +0000 (15:15 +0100)]
i2c: bcm2835: Add debug support
This adds a debug module parameter to aid in debugging transfer issues
by printing info to the kernel log. When enabled, status values are
collected in the interrupt routine and msg info in
bcm2835_i2c_start_transfer(). This is done in a way that tries to avoid
affecting timing. Having printk in the isr can mask issues.
debug values (additive):
1: Print info on error
2: Print info on all transfers
3: Print messages before transfer is started
The value can be changed at runtime:
/sys/module/i2c_bcm2835/parameters/debug
Example output, debug=3:
[ 747.114448] bcm2835_i2c_xfer: msg(1/2) write addr=0x54, len=2 flags= [i2c1]
[ 747.114463] bcm2835_i2c_xfer: msg(2/2) read addr=0x54, len=32 flags= [i2c1]
[ 747.117809] start_transfer: msg(1/2) write addr=0x54, len=2 flags= [i2c1]
[ 747.117825] isr: remain=2, status=0x30000055 : TA TXW TXD TXE [i2c1]
[ 747.117839] start_transfer: msg(2/2) read addr=0x54, len=32 flags= [i2c1]
[ 747.117849] isr: remain=32, status=0xd0000039 : TA RXR TXD RXD [i2c1]
[ 747.117861] isr: remain=20, status=0xd0000039 : TA RXR TXD RXD [i2c1]
[ 747.117870] isr: remain=8, status=0x32 : DONE TXD RXD [i2c1]
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Noralf Trønnes [Mon, 26 Sep 2016 23:00:08 +0000 (01:00 +0200)]
i2c: bcm2835: Add support for dynamic clock
Support a dynamic clock by reading the frequency and setting the
divisor in the transfer function instead of during probe.
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Martin Sperl <kernel@martin.sperl.org>
Noralf Trønnes [Fri, 23 Sep 2016 02:57:17 +0000 (04:57 +0200)]
i2c: bcm2835: Support i2c-dev ioctl I2C_TIMEOUT
Use i2c_adapter->timeout for the completion timeout value. The core
default is 1 second.
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Noralf Trønnes [Fri, 23 Sep 2016 02:54:27 +0000 (04:54 +0200)]
i2c: bcm2835: Add support for Repeated Start Condition
Documentation/i2c/i2c-protocol states that Combined transactions should
separate messages with a Start bit and end the whole transaction with a
Stop bit. This patch adds support for issuing only a Start between
messages instead of a Stop followed by a Start.
This implementation differs from downstream i2c-bcm2708 in 2 respects:
- it uses an interrupt to detect that the transfer is active instead
of using polling. There is no interrupt for Transfer Active, but by
not prefilling the FIFO it's possible to use the TXW interrupt.
- when resetting/disabling the controller between transfers it writes
CLEAR to the control register instead of just zero.
Using just zero gave many errors. This might be the reason why
downstream had to disable this feature and make it available with a
module parameter.
I have run thousands of transfers to a DS1307 (rtc), MMA8451 (accel)
and AT24C32 (eeprom) in parallel without problems.
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Acked-by: Eric Anholt <eric@anholt.net>
Noralf Trønnes [Thu, 22 Sep 2016 20:05:50 +0000 (22:05 +0200)]
i2c: bcm2835: Can't support I2C_M_IGNORE_NAK
The controller can't support this flag, so remove it.
Documentation/i2c/i2c-protocol states that all of the message is sent:
I2C_M_IGNORE_NAK:
Normally message is interrupted immediately if there is [NA] from the
client. Setting this flag treats any [NA] as [A], and all of
message is sent.
From the BCM2835 ARM Peripherals datasheet:
The ERR field is set when the slave fails to acknowledge either
its address or a data byte written to it.
So when the controller doesn't receive an ack, it sets ERR and raises
an interrupt. In other words, the whole message is not sent.
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Noralf Trønnes [Mon, 19 Sep 2016 15:19:41 +0000 (17:19 +0200)]
i2c: bcm2835: Use dev_dbg logging on transfer errors
Writing to an AT24C32 generates on average 2x i2c transfer errors per
32-byte page write. Which amounts to a lot for a 4k write. This is due
to the fact that the chip doesn't respond during it's internal write
cycle when the at24 driver tries and retries the next write.
Only a handful drivers use dev_err() on transfer error, so switch to
dev_dbg() instead.
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Noralf Trønnes [Fri, 23 Sep 2016 16:24:38 +0000 (18:24 +0200)]
i2c: bcm2835: Protect against unexpected TXW/RXR interrupts
If an unexpected TXW or RXR interrupt occurs (msg_buf_remaining == 0),
the driver has no way to fill/drain the FIFO to stop the interrupts.
In this case the controller has to be disabled and the transfer
completed to avoid hang.
(CLKT | ERR) and DONE interrupts are completed in their own paths, and
the controller is disabled in the transfer function after completion.
Unite the code paths and do disabling inside the interrupt routine.
Clear interrupt status bits in the united completion path instead of
trying to do it on every interrupt which isn't necessary.
Only CLKT, ERR and DONE can be cleared that way.
Add the status value to the error value in case of TXW/RXR errors to
distinguish them from the other S_LEN error.
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
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>
Eric Anholt [Wed, 14 Sep 2016 08:18:09 +0000 (09:18 +0100)]
raspberrypi-firmware: Define the MBOX channel in the header.
Signed-off-by: Eric Anholt <eric@anholt.net>
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>
Eric Anholt [Mon, 3 Oct 2016 17:21:17 +0000 (10:21 -0700)]
drivers/vchi: Remove dependency on CONFIG_BROKEN.
The driver builds now.
Signed-off-by: Eric Anholt <eric@anholt.net>
Eric Anholt [Mon, 3 Oct 2016 17:16:03 +0000 (10:16 -0700)]
staging/vchi: Update for rename of page_cache_release() to put_page().
Signed-off-by: Eric Anholt <eric@anholt.net>
Eric Anholt [Mon, 3 Oct 2016 17:14:10 +0000 (10:14 -0700)]
staging/vchi: Convert to current get_user_pages() arguments.
Signed-off-by: Eric Anholt <eric@anholt.net>
Phil Elwell [Mon, 20 Jun 2016 12:51:44 +0000 (13:51 +0100)]
vchiq_arm: Avoid use of mutex in add_completion
Claiming the completion_mutex within add_completion did prevent some
messages appearing twice, but provokes a deadlock caused by vcsm using
vchiq within a page fault handler.
Revert the use of completion_mutex, and instead fix the original
problem using more memory barriers.
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Phil Elwell [Thu, 21 Apr 2016 12:49:32 +0000 (13:49 +0100)]
vchiq_arm: Add completion records under the mutex
An issue was observed when flushing openmax components
which generate a large number of messages returning
buffers to host.
We occasionally found a duplicate message from 16
messages prior, resulting in a buffer returned twice.
While only one thread adds completions, without the
mutex you don't get the protection of the automatic
memory barrier you get with synchronisation objects.
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Phil Elwell [Wed, 23 Mar 2016 20:53:47 +0000 (20:53 +0000)]
vchiq_arm: Service callbacks must not fail
Service callbacks are not allowed to return an error. The internal callback
that delivers events and messages to user tasks does not enqueue them if
the service is closing, but this is not an error and should not be
reported as such.
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Phil Elwell [Wed, 23 Mar 2016 14:16:25 +0000 (14:16 +0000)]
vchiq_arm: Access the dequeue_pending flag locked
Reading through this code looking for another problem (now found in userland)
the use of dequeue_pending outside a lock didn't seem safe.
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Phil Elwell [Mon, 7 Mar 2016 15:05:11 +0000 (15:05 +0000)]
vchiq_arm: Tweak the logging output
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Michael Zoran [Wed, 24 Aug 2016 10:35:56 +0000 (03:35 -0700)]
Add arm64 configuration and device tree differences.
Disable MMC_BCM2835_SDHOST and MMC_BCM2835 since these drivers are crashing at the moment.
ARM64: Modify default config to get raspbian to boot (#1686)
1. Enable emulation of deprecated instructions.
2. Enable ARM 8.1 and 8.2 features which are not detected at runtime.
3. Switch the default governer to powersave.
4. Include the watchdog timer driver in the kernel image rather then a module.
Tested with raspbian-jessie 2016-09-23.
popcornmix [Mon, 13 Apr 2015 16:16:29 +0000 (17:16 +0100)]
config: Add default configs
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.
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>
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>
Phil Elwell [Wed, 23 Mar 2016 17:20:58 +0000 (17:20 +0000)]
net: Fix rtl8192cu build errors on other platforms
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
suppress spurious messages
Add #if for 3.14 kernel change (#87)
Fixes compiling after changes in https://github.com/torvalds/linux/commit/
f663dd9aaf9ed124f25f0f8452edf238f087ad50 and https://github.com/torvalds/linux/commit/
99932d4fc03a13bb3e94938fe25458fabc8f2fc3
Fixes #86
Set dev_type to wlan
Fixes #23
Tentatively added support for more 8188CUS based devices.
Add support for more 8188CUS and 8192CUS devices
Add ProductId for the Netgear N150 - WNA1000M
Fixes CONFIG_CONCURRENT_MODE CONFIG_MULTI_VIR_IFACES
Fixes compatibility with 3.13
Enables warning in the compiler and fixes some issues, reference => https://github.com/diederikdehaas/rtl8812AU
Starts device in station mode instead of monitor, fixes NetworkManager issues
Enable cfg80211 support
Fix cfg80211 for kernel >= 4.7
Fixes rtl8192cu for kernel >= 4.8
popcornmix [Mon, 3 Sep 2012 16:10:23 +0000 (17:10 +0100)]
net: Add non-mainline source for rtl8192cu wlan
Add non-mainline source for rtl8192cu wireless driver version v4.0.2_9000 as
this is widely used. Disable older rtlwifi driver.
8192cu needs old wireless extensions
The obsolete WIRELESS_EXT configuration is used
by the old Realtek code and is needed for AP support.
8192cu: CONFIG_AP_MODE hardcoded in autoconf.h
rtl8192c_rf6052: PHY_RFShadowRefresh(): fix off-by-one
Signed-off-by: Marc Kleine-Budde <mkl@blackshift.org>
rtl8192cu: Add PID for D-Link DWA 131
Phil Elwell [Tue, 23 Feb 2016 17:26:48 +0000 (17:26 +0000)]
amba_pl011: Don't use DT aliases for numbering
The pl011 driver looks for DT aliases of the form "serial<n>",
and if found uses <n> as the device ID. This can cause
/dev/ttyAMA0 to become /dev/ttyAMA1, which is confusing if the
other serial port is provided by the 8250 driver which doesn't
use the same logic.
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.
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>
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.
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>
DigitalDreamtime [Sat, 2 Jul 2016 15:26:19 +0000 (16:26 +0100)]
Add support for Dion Audio LOCO DAC-AMP HAT
Using dedicated machine driver and pcm5102a codec driver.
Signed-off-by: DigitalDreamtime <clive.messer@digitaldreamtime.co.uk>
escalator2015 [Tue, 24 May 2016 15:20:09 +0000 (16:20 +0100)]
New driver for RRA DigiDAC1 soundcard using WM8741 + WM8804
DigitalDreamtime [Thu, 30 Jun 2016 17:38:42 +0000 (18:38 +0100)]
Add IQAudIO Digi WM8804 board support
Support IQAudIO Digi board with iqaudio_digi machine driver and
iqaudio-digi-wm8804-audio overlay.
NB. Machine driver is a cut and paste of hifiberry_digi code, with format
and general cleanup to comply with kernel coding standards.
Signed-off-by: DigitalDreamtime <clive.messer@digitaldreamtime.co.uk>
Matt Flax [Mon, 16 May 2016 11:36:31 +0000 (21:36 +1000)]
New AudioInjector.net Pi soundcard with low jitter audio in and out.
Contains the sound/soc/bcm ALSA machine driver and necessary alterations to the Kconfig and Makefile.
Adds the dts overlay and updates the Makefile and README.
Updates the relevant defconfig files to enable building for the Raspberry Pi.
Thanks to Phil Elwell (pelwell) for the review, simple-card concepts and discussion. Thanks to Clive Messer for overlay naming suggestions.
Added support for headphones, microphone and bclk_ratio settings.
This patch adds headphone and microphone capability to the Audio Injector sound card. The patch also sets the bit clock ratio for use in the bcm2835-i2s driver. The bcm2835-i2s can't handle an 8 kHz sample rate when the bit clock is at 12 MHz because its register is only 10 bits wide which can't represent the ch2 offset of 1508. For that reason, the rate constraint is added.
Andrey Grodzovsky [Wed, 4 May 2016 02:10:59 +0000 (22:10 -0400)]
ARM: adau1977-adc: Add basic machine driver for adau1977 codec driver.
This commit adds basic support for the codec usage including: Device tree overlay,
binding I2S bus and setting I2S mode, clock source and frequency setting according
to spec.
Signed-off-by: Andrey Grodzovsky <andrey2805@gmail.com>
Aaron Shaw [Thu, 7 Apr 2016 20:26:21 +0000 (21:26 +0100)]
Add Support for JustBoom Audio boards
justboom-dac: Adjust for ALSA API change
As of 4.4, snd_soc_limit_volume now takes a struct snd_soc_card *
rather than a struct snd_soc_codec *.
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Jan Grulich [Mon, 24 Aug 2015 15:03:47 +0000 (16:03 +0100)]
RaspiDAC3 support
Signed-off-by: Jan Grulich <jan@grulich.eu>
config: fix RaspiDAC Rev.3x dependencies
Change depends to SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
like the other I2S soundcard drivers.
Signed-off-by: Matthias Reichl <hias@horus.com>
Waldemar Brodkorb [Wed, 25 Mar 2015 08:26:17 +0000 (09:26 +0100)]
Add driver for rpi-proto
Forward port of 3.10.x driver from https://github.com/koalo
We are using a custom board and would like to use rpi 3.18.x
kernel. Patch works fine for our embedded system.
URL to the audio chip:
http://www.mikroe.com/add-on-boards/audio-voice/audio-codec-proto/
Playback tested with devicetree enabled.
Signed-off-by: Waldemar Brodkorb <wbrodkorb@conet.de>
Ryan Coe [Sun, 1 Feb 2015 01:25:49 +0000 (18:25 -0700)]
Update ds1307 driver for device-tree support
Signed-off-by: Ryan Coe <bluemrp9@gmail.com>
Daniel Matuschek [Mon, 4 Aug 2014 09:09:58 +0000 (11:09 +0200)]
Added driver for HiFiBerry Amp amplifier add-on board
The driver contains a low-level hardware driver for the TAS5713 and the
drivers for the Raspberry Pi I2S subsystem.
TAS5713: return error if initialisation fails
Existing TAS5713 driver logs errors during initialisation, but does not return
an error code. Therefore even if initialisation fails, the driver will still be
loaded, but won't work. This patch fixes this. I2C communication error will now
reported correctly by a non-zero return code.
HiFiBerry Amp: fix device-tree problems
Some code to load the driver based on device-tree-overlays was missing. This is added by this patch.
hifiberry-amp: Adjust for ALSA object refactoring
See: https://github.com/raspberrypi/linux/issues/1775
Daniel Matuschek [Mon, 4 Aug 2014 08:06:56 +0000 (10:06 +0200)]
Added support for HiFiBerry DAC+
The driver is based on the HiFiBerry DAC driver. However HiFiBerry DAC+ uses
a different codec chip (PCM5122), therefore a new driver is necessary.
Add support for the HiFiBerry DAC+ Pro.
The HiFiBerry DAC+ and DAC+ Pro products both use the existing bcm sound driver with the DAC+ Pro having a special clock device driver representing the two high precision oscillators.
An addition bug fix is included for the PCM512x codec where by the physical size of the sample frame is used in the calculation of the LRCK divisor as it was found to be wrong when using 24-bit depth sample contained in a little endian 4-byte sample frame.
Limit PCM512x "Digital" gain to 0dB by default with HiFiBerry DAC+
24db_digital_gain DT param can be used to specify that PCM512x
codec "Digital" volume control should not be limited to 0dB gain,
and if specified will allow the full 24dB gain.
Add dt param to force HiFiBerry DAC+ Pro into slave mode
"dtoverlay=hifiberry-dacplus,slave"
Add 'slave' param to use HiFiBerry DAC+ Pro in slave mode,
with Pi as master for bit and frame clock.
Signed-off-by: DigitalDreamtime <clive.messer@digitaldreamtime.co.uk>
popcornmix [Mon, 25 Jul 2016 16:06:50 +0000 (17:06 +0100)]
iqaudio-dac: Compile fix - untested
Gordon Garrity [Sat, 8 Mar 2014 16:56:57 +0000 (16:56 +0000)]
Add IQaudIO Sound Card support for Raspberry Pi
Set a limit of 0dB on Digital Volume Control
The main volume control in the PCM512x DAC has a range up to
+24dB. This is dangerously loud and can potentially cause massive
clipping in the output stages. Therefore this sets a sensible
limit of 0dB for this control.
Allow up to 24dB digital gain to be applied when using IQAudIO DAC+
24db_digital_gain DT param can be used to specify that PCM512x
codec "Digital" volume control should not be limited to 0dB gain,
and if specified will allow the full 24dB gain.
Modify IQAudIO DAC+ ASoC driver to set card/dai config from dt
Add the ability to set the card name, dai name and dai stream name, from
dt config.
Signed-off-by: DigitalDreamtime <clive.messer@digitaldreamtime.co.uk>
IQaudIO: auto-mute for AMP+ and DigiAMP+
IQAudIO amplifier mute via GPIO22. Add dt params for "one-shot" unmute
and auto mute.
Revision 2, auto mute implementing HiassofT suggestion to mute/unmute
using set_bias_level, rather than startup/shutdown....
"By default DAPM waits 5 seconds (pmdown_time) before shutting down
playback streams so a close/stop immediately followed by open/start
doesn't trigger an amp mute+unmute."
Tested on both AMP+ (via DAC+) and DigiAMP+, with both options...
dtoverlay=iqaudio-dacplus,unmute_amp
"one-shot" unmute when kernel module loads.
dtoverlay=iqaudio-dacplus,auto_mute_amp
Unmute amp when ALSA device opened by a client. Mute, with 5 second delay
when ALSA device closed. (Re-opening the device within the 5 second close
window, will cancel mute.)
Revision 4, using gpiod.
Revision 5, clean-up formatting before adding mute code.
- Convert tab plus 4 space formatting to 2x tab
- Remove '// NOT USED' commented code
Revision 6, don't attempt to "one-shot" unmute amp, unless card is
successfully registered.
Signed-off-by: DigitalDreamtime <clive.messer@digitaldreamtime.co.uk>
Daniel Matuschek [Wed, 15 Jan 2014 20:42:08 +0000 (21:42 +0100)]
ASoC: BCM:Add support for HiFiBerry Digi. Driver is based on the patched WM8804 driver.
Signed-off-by: Daniel Matuschek <daniel@matuschek.net>
Add a parameter to turn off SPDIF output if no audio is playing
This patch adds the paramater auto_shutdown_output to the kernel module.
Default behaviour of the module is the same, but when auto_shutdown_output
is set to 1, the SPDIF oputput will shutdown if no stream is playing.
bugfix for 32kHz sample rate, was missing
HiFiBerry Digi: set SPDIF status bits for sample rate
The HiFiBerry Digi driver did not signal the sample rate in the SPDIF status bits.
While this is optional, some DACs and receivers do not accept this signal. This patch
adds the sample rate bits in the SPDIF status block.
Added HiFiBerry Digi+ Pro driver
Signed-off-by: Daniel Matuschek <daniel@hifiberry.com>