Pontus Fuchs [Mon, 17 Feb 2014 20:20:53 +0000 (21:20 +0100)]
wcn36xx: Add helper macros to cast sta to priv
While poking at this I also change two related things. I rename one
variable to make the names consistent. I also move one assignment of
priv_sta to the declaration to save a few lines.
Pontus Fuchs [Mon, 10 Feb 2014 20:33:54 +0000 (21:33 +0100)]
wcn36xx: Pad TIM PVM if needed
The wcn36xx FW expects a fixed size TIM PVM in the beacon template. If
supplied with a shorter than expected PVM it will overwrite the IE
following the TIM.
Fengwei Yin [Sun, 20 Dec 2015 13:20:41 +0000 (21:20 +0800)]
wcn36xx: split DMA mask register writing.
Per comments from Bjorn Andersson <bjorn.andersson@sonymobile.com>,
split DMA mask register writing as seperate patch in case we need
bi-sect in the furture.
Fengwei Yin [Sun, 20 Dec 2015 13:20:40 +0000 (21:20 +0800)]
wcn36xx: handle rx skb allocation failure to avoid system crash
Lawrence reported that git clone could make system crash on a
Qualcomm ARM soc based device (DragonBoard, 1G memory without
swap) running 64bit Debian.
It's turned out the crash is related with rx skb allocation
failure. git could consume more than 600MB anonymous memory.
And system is in extremely memory shortage case.
But driver didn't handle the rx allocation failure case. This patch
doesn't submit skb to upper layer if rx skb allocation fails.
Instead, it reuse the old skb for rx DMA again. It's more like
drop the packets if system is in memory shortage case.
With this change, git clone is OOMed instead of system crash.
Reported-by: King, Lawrence <lking@qti.qualcomm.com> Signed-off-by: Fengwei Yin <fengwei.yin@linaro.org>
ASoC: qcom: use correct device pointer in dma allocation
dev pointer in struct snd_soc_pcm_runtime does not have dma_ops set. In
v4.4 kernel dma_ops would end up pointing to dummy_dma_ops in such cases.
So attempting to use such device in allocating coherent memory on aarch64
would fail.
According to commit 1dccb598df549d892b6450c261da54cdd7af44b4 ("arm64:
simplify dma_get_ops") The current behavior of dma_get_ops is to fall
back to the global dma_ops when a device has not set its own dma_ops,
but only for DT based systems.
So, this patch fixes the driver to use correct device pointer while
allocating coherent memory, and also deletes un-necessary dma_mask setup
on soc_runtime->dev.
Without this patch lpass driver would fail with below log:
...
[ 6.541542] ADV7533: lpass_platform_alloc_buffer: Could not allocate DMA buffer
[ 6.541914] apq8016-lpass-cpu 7708000.lpass-cpu: ASoC: pcm constructor failed: -12
[ 6.548216] qcom-apq8016-sbc 7702000.sound: ASoC: can't create pcm ADV7533 :-12
[ 6.555581] qcom-apq8016-sbc 7702000.sound: ASoC: failed to instantiate card -12
[ 6.566072] qcom-apq8016-sbc: probe of 7702000.sound failed with error -12
...
On msm8x16 SOCs the codec integration is split into digital and analog
parts, digitial part is integrated with SOC and the analog part is
integrated as part of pmic chip pm8916.
This driver provides basic playback support with lot of todos:
1> Capture support
2> Cleanup
3> Multi button head set support.
4> Impedenace matching logic.
ALSA: pcm: add IEC958 channel status helper for hw_params
Add IEC958 channel status helper that gets the audio properties from
snd_pcm_hw_params instead of snd_pcm_runtime. This is needed to
produce the channel status bits already in audio stream configuration
phase.
ASoC: hdmi-codec: Add hdmi-codec for external HDMI-encoders
The hdmi-codec is a platform device driver to be registered from
drivers of external HDMI encoders with I2S and/or spdif interface. The
driver in turn registers an ASoC codec for the HDMI encoder's audio
functionality.
The structures and definitions in the API header are mostly redundant
copies of similar structures in ASoC headers. This is on purpose to
avoid direct dependencies to ASoC structures in video side driver.
Ivan T. Ivanov [Wed, 13 May 2015 12:20:12 +0000 (15:20 +0300)]
usb: phy: msm: Ensure that workers are initialized before use
Charger detect and USB state detect workers could be triggered from
USB-HOST and USB cable detect notifiers. Ensure that workers are
initialized before driver register its interest for cable events.
Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Currently the rates of the xo and sleep clocks are hard-coded in the
GCC driver, but this is a board layout description that actually should
be in the DT. Moving them into DT also allows us to insert the RPM
controlled clocks between the DT and GCC clocks.
move the allocation of iommu-sec page table into msm_iommu_dev
in order to use properly initialised struct device.
The dma_alloc_attrs would fail to allocate memory with the fake
struct device which was the case before this change.
Nicolas Dechesne [Wed, 29 Jul 2015 13:03:15 +0000 (15:03 +0200)]
kernel: configs: improve distro.config, mostly for systemd
* add missing options required/optional for systemd
http://cgit.freedesktop.org/systemd/systemd/tree/README
Some options were enabled by default in arch/arm64/defconfig, but not in
arch/arm/multi_v7_defconfig..
* rework/move the options to separate out systemd configs
Signed-off-by: Nicolas Dechesne <nicolas.dechesne@linaro.org>
linaro: add defconfig fragment with basic linaro config
In order to ease kernel configuration, we are now using kernel config
fragments. In the folder linaro/configs, we will add fragments as needed with
all configurations that are required when using the Linaro kernel releases.
Users are expected to run the following command to properly configure their
kernel tree prior to the build:
Bjorn Andersson [Tue, 20 Oct 2015 02:48:21 +0000 (10:48 +0800)]
Bluetooth: btqcomsmd: Qualcomm WCNSS HCI driver
The Qualcomm WCNSS chip provides two SMD channels to the BT core; one
for command and one for event packets. This driver exposes the two
channels as a hci device.
Andy Green [Mon, 12 Jan 2015 15:01:26 +0000 (23:01 +0800)]
wcn36xx: handle new hal response format
wcn3620 has a new message structure for the reply to some hal
commands. This patch adds the struct and helper routine that
uses it if the chip is wcn3620, or falls back to the old
helper routine.
We don't know what to do with the candidate list he sends back,
but we can at least accept and ignore it nicely instead of dying.
Kumar Gala [Wed, 11 Mar 2015 21:28:10 +0000 (16:28 -0500)]
firmware: qcom: scm: Split out 32-bit specific SCM code
Split out the 32-bit SCM implementation into its own file to prep for
supporting a 64-bit/ARM64 implementation as well. We create a simple shim
to ensure both versions conform to the same interface.
Bjorn Andersson [Tue, 30 Jun 2015 19:46:19 +0000 (12:46 -0700)]
firmware: qcom: scm: Peripheral Authentication Service
This adds the Peripheral Authentication Service (PAS) interface to the
Qualcomm SCM interface. The API is used to authenticate and boot a range
of external processors in various Qualcomm platforms.
Georgi Djakov [Fri, 11 Sep 2015 13:26:31 +0000 (16:26 +0300)]
power: avs: cpr: Fix Duplicate OPPs warning
Change the sequence to get the regulators first
and then add OPPs as regulators can defer probe
in the middle and leave us with only partially
added OPPs.
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Stephen Boyd [Tue, 2 Jun 2015 01:47:59 +0000 (18:47 -0700)]
power: avs: Add support for CPR (Core Power Reduction)
RBCPR (RapidBridge Core Power Reduction) is a technology to reduce
core power on a CPU or other device. It reads voltage settings in
efuse from product test process as initial settings and populates OPPs
for the device being "monitored". Each OPP corresponds to a "corner"
that has a range of valid voltages for a particular frequency. While
the device is running at a particular frequency, CPR monitors dynamic
factors such as temperature, etc. and adjusts the voltage for that
frequency accordingly to save power and meet silicon characteristic
requirements.
This driver is based on work by others on codeaurora.org[1].
Stephen Boyd [Tue, 2 Jun 2015 01:47:58 +0000 (18:47 -0700)]
cpufreq-dt: Handle OPP voltage adjust events
On some SoCs the Adaptive Voltage Scaling (AVS) technique is
employed to optimize the operating voltage of a device. At a
given frequency, the hardware monitors dynamic factors and either
makes a suggestion for how much to adjust a voltage for the
current frequency, or it automatically adjusts the voltage
without software intervention.
In the former case, an AVS driver will call
dev_pm_opp_modify_voltage() and update the voltage for the
particular OPP the CPUs are using. Add an OPP notifier to
cpufreq-dt so that we can adjust the voltage of the CPU when AVS
updates the OPP.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Stephen Boyd [Tue, 2 Jun 2015 01:47:57 +0000 (18:47 -0700)]
OPP: Allow notifiers to call dev_pm_opp_get_{voltage, freq} RCU-free
We pass the dev_pm_opp structure to OPP notifiers but the users
of the notifier need to surround calls to dev_pm_opp_get_*() with
RCU read locks to avoid lockdep warnings. The notifier is already
called with the dev_opp's srcu lock held, so it should be safe to
assume the devm_pm_opp structure is already protected inside the
notifier. Update the lockdep check for this.
Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Stephen Boyd [Tue, 2 Jun 2015 01:47:56 +0000 (18:47 -0700)]
PM / OPP: Support adjusting OPP voltages at runtime
On some SoCs the Adaptive Voltage Scaling (AVS) technique is
employed to optimize the operating voltage of a device. At a
given frequency, the hardware monitors dynamic factors and either
makes a suggestion for how much to adjust a voltage for the
current frequency, or it automatically adjusts the voltage
without software intervention. Add an API to the OPP library for
the former case, so that AVS type devices can update the voltages
for an OPP when the hardware determines the voltage should
change. The assumption is that drivers like CPUfreq or devfreq
will register for the OPP notifiers and adjust the voltage
according to suggestions that AVS makes.
Bjorn Andersson [Wed, 10 Dec 2014 19:27:51 +0000 (11:27 -0800)]
soc: qcom: Stub IPCRTR client driver
The IPCRTR channel needs to come up for the pronto block to be happy and
continue communication, so this driver does just that (and dumps
incoming data in the log).
Bjorn Andersson [Tue, 20 Oct 2015 02:46:15 +0000 (10:46 +0800)]
soc: qcom: smd: Support opening additional channels
With the qcom_smd_open_channel() API we allow SMD devices to open
additional SMD channels, to allow implementation of multi-channel SMD
devices - like Bluetooth.
Channels are opened from the same edge as the calling SMD device is tied
to.
projects / mirror_ubuntu-zesty-kernel.git / log