Add bindings for Qualcomm SPMI haptics on platforms using pmi8998.
Signed-off-by: Caleb Connolly <caleb@connolly.tech>
(JAMI: fixup for v6.0-rc2 & v7 of driver patches)
This adds support for accessing SRAM. That includes requesting and releasing
access to SRAM by setting some registers and handling the mem-avail IRQ,
configuring access, and reading from/writing to it.
Pre-gen3 fuel gauges require reading from SRAM to get voltage, current
and temperature data. Getting capacity is identical to gen3.
Tested on Xiaomi Mi Note 2 with PMI8996.
Add a driver for the SMB2 charger block found in the Qualcomm PMI8998
and PM660.
This driver adds initial support for detecting USB cables and managing
basic battery charging.
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Add support for the haptics found in pmi8998 and related PMICs.
Based on the ff-memless interface. Currently this driver provides
a partial implementation of hardware features.
This driver only supports LRAs (Linear Resonant Actuators) in the "buffer"
mode with a single wave pattern.
Signed-off-by: Caleb Connolly <caleb@connolly.tech>
Add MSM8998 and SDM660's mss-pil compatibles to switch the default
iommu domain type to IDENTITY, as similarly required by SDM845 and
others.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
(JAMI: fixup for 6.0-rc2)
Similarly to MSM8996 DragonBoard 820c, MSM8998 and SDM630 are equipped
with Adreno 5xx series, which doesn't have separate pagetables support
at the moment of writing.
Skip the TTBR1 quirk for these two SoCs as to get Adreno in a usable
state.
Qualcomm WCD9335 Codec is a standalone Hi-Fi audio codec IC.
This codec has integrated SoundWire controller, pin controller and
interrupt controller.
Originally from: d95b982a
Add generic slimbus configuration to MSM8998 and keep it disabled.
It is expected that this will be enabled in board-specific device
trees when supported, along with the right audio codec.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Add platform driver for configuring msm8998 lpass core I2S and
DMA configuration to support playback & capture to external codecs
connected over primary & secondary MI2S interfaces.
(driver originally split from 4d7e1ead3b ("fastmatrix yaml fix"))
Add MSM8998 sound support: this driver supports basic functionality
and headphone jack.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
(JAMI: fixup for 5.17 & 6.0-rc2)
To support audio dsp functionality, enable the lpass smmu.
The firmware distributed with the MSM8998 Sony Xperia smartphones
requires us to skip resetting CB12 of this SMMU and to use CB11
as a context bank to emulate bypass streams.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
(JAMI: fixed up for v5.16-rc1)
Add the standard APR Q6 services configuration for MSM8998, used by
boards supporting the audio dsp.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
If the target board supports ADSP, it is essential to have fastrpc
compute context banks defined. This commit adds the always usable
unsecured context banks only.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Add support for the LPASS (Q6) SMMU and keep it disabled as this is
used only when the audio DSP is present and used, which is not
mandatory to have.
It is expected for board-specific device-trees to enable this node
if supported.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
As a final step to entirely enable the required clock tree for the
lpass iommu and audio dsp, add the lpass core/adsp GDSCs.
As a side note, it was found out that disabling the lpass core GDSC
at any time would cause a system lockup (and reboot): disabling
this GDSC will leave the lpass iommu completely unclocked, losing
its state entirely - including the secure contexts that have been
previously set-up from the bootloader/TrustZone.
Losing this IOMMU configuration will trigger a hypervisor fault,
which will reboot the system; the only workaround for this issue
is to declare the lpass core gdsc as always-on.
It should also not be forgotten that this is all about firmware and
there may be a version of it that doesn't enable this GDSC at all
before booting Linux, which is the reason why this specific declaration
wasn't simply omitted.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Add the GDSC definitions for the LPASS_ADSP_GDSC and LPASS_CORE_GDSC
as a final step to enable the required clock tree for the lpass iommu
and for the audio dsp itself.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Add the Q6 BIMC, LPASS core/adsp SMMU clocks to support audio related
functionality on MSM8998 and APQ variants. Please note that the Q6 and
the lpass iommu also need GDSCs to be enabled in order to initialize,
which are going to be added in a later commit.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
(JAMI: fixup for 6.0-rc2)
Add definitions for the Q6 BIMC, LPASS core and adsp smmu clocks,
required to enable audio functionality on MSM8998.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
(JAMI: merge with e122a6a4 for 5.17 & fixup for 6.0-rc1)
Firmware loading (mainly the modem) may require IMEM PIL relocation
informations: specify this imem region in dt for qcom_pil_info to
use it.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
The pixel and byte clocks rate should not be cached, as a VCO shutdown
may clear the frequency setup and this may not be set again due to the
cached rate being present.
This will also be useful when shadow clocks will be implemented in
the DSI PLL for seamless timing/resolution switch.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
This driver is a reimplementation of matrix_keyboard, on which it
is heavily based: the former was made back in 2009 and then
lightly updated in 2012 to add some support for device-tree / OF.
It turns out that this is not enough, nor OF is fully supported,
as the global (or "clustered") interrupt is never probed, nor it
made usage of the GPIOD API which, nowadays, really simplifies
the job - but not only: it also provides means to set GPIO arrays
for controllers that are supporting this.
The latter is very important when dealing with slow GPIOs such as
I2C and/or SPI expanders (and, again, not only); by using the new
APIs everything fits the new systems, from simplifications of the
probe/remove functions to opening possibility of using expanders
to drive key matrices with or without protection diodes.
But then, why wasn't the old matrix_keyboard driver modified
instead of creating a new one?
The problem there is that the old driver is made to support the
old platform_device style and it's currently still being used by
some PXA boards that are not (yet?) ported to device-tree, so it
would be impossible to modernize it for good, which means that to
support GPIOD (which is - really - required for the aforementioned
reasons) and to fully support DT it would be necessary to wrap the
old GPIO API around the new GPIOD one, creating overhead and also
probably unnecessary memory usage, other than a very big driver
which, at least on embedded devices (having limited resources),
would be simply bad. Leaving the fact that I haven't got any old
board so it's impossible for me to analyze and optimize for them.
Since 98% of the users of the old driver are infact platforms that
have been ported to (or are born with) DT, the introduction of a
new driver that's purely made for them seemed to be the best
choice, also because the expectations are (I think) that all of
the old ARM-based boards will be ported to DT anyway, which will
actually deprecate the good old matrix_keyboard driver.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Add documentation for the gpio-fastmatrix-keyboard driver.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
(JAMI: merge with e7aa905a for 5.17)
