Intel SST driver allocates lots of pages at suspend for saving the
firmware states, and this may occasionally lead to the allocation
error due to the high order, ending up with the suspend failure.

Use kvzalloc() so that it can fall back to vmalloc() gracefully.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NMark Brown <broonie@kernel.org>

In commit 9a075265 ("ASoC: Intel: sst: Remove unused function
sst_restore_shim64()"), we deleted the sst_restore_shim64() since it
was never used.  ...but a quick look at the code shows that we should
also be able to remove the sst_save_shim64() function and the
structure members we were storing data in.

Once we delete sst_save_shim64() there are no longer any users of the
'sst_shim_regs64' structure.  That means we can delete it completely
and also avoid allocating memory for it.  This saves a whopping 136
bytes of devm allocated memory.  We also get the nice benefit of
avoiding an error path in the init code.

Note that the saving code that we're removing (and the comments
talking about how important it is to do the save) has been around
since commit 336cfbb0 ("ASoC: Intel: mrfld- add ACPI module").
Signed-off-by: NDouglas Anderson <dianders@chromium.org>
Reviewed-by: NAndy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

After the boot of the SST FW the firmware version is send back
to the driver. This patch is saving the FW version inside the
driver.
Signed-off-by: NSebastien Guiriec <sebastien.guiriec@intel.com>
Acked-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Restructure the sound/soc/intel/ directory: create atom folder, and move
sst atom platform files here.
Signed-off-by: NJie Yang <yang.jie@intel.com>
Acked-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

This adds support for system pm support. We need to save the dsp memory
which gets lost on suspend and restore that on resume
Signed-off-by: NSubhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Export 32-bit version of memcpy for use in suspend/resume.
Signed-off-by: NSubhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Function sst_acpi_probe() uses plain strcpy for setting member firmware_name
of a struct intel_sst_drv from member firmware of a struct sst_machines.
Thereby the destination array has got a length of 20 byte while the source may
hold 32 byte. Since eg. commit 64b9c90b ("ASoC: Intel: Fix BYTCR firmware
name") increased strings from "fw_sst_0f28.bin" to "intel/fw_sst_0f28.bin"
there is an actual possibility that the 20 byte array at the end of struct
intel_sst_drv is overrun.

Thus increase the size of the destination and use the same define for both
structs. Detected by Coverity CID 1260087.
Signed-off-by: NChristian Engelmayer <cengelma@gmx.at>
Signed-off-by: NMark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org

This patch add ACPI device ID and platform data for two Cherryview-based
platforms, Cherrytrail and Braswell. Also reuse mfld driver ops in sst driver.
Signed-off-by: NMengdong Lin <mengdong.lin@intel.com>
Acked-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Add the last ACPI module support which also uses core module like the PCI
part
Signed-off-by: NSubhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

sst_save_shim64() is defined as static in code but header is non static.
Since this is not used other than file where defined remove non static
definition
Reported-by: Nkbuild test robot <fengguang.wu@intel.com>
Signed-off-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Now the SST_IPC will support both ACPI and PCI, separate into core module
and PCI module. This also move probe function into PCI module and exports
the required symbols from core module
Signed-off-by: NSubhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

In order to support both ACPI and PCI devices we need to use a genric device
id in driver, so change all pci_id instances to device_id
Signed-off-by: NSubhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

The SST driver is the missing piece in our driver stack not upstreamed,
so push it now :) This driver currently supports PCI device on Merrifield.
Future updates will bring support for ACPI device as well as future update
to PCI devices as well

In subsequent patches support is added for DSP loading using memcpy,
pcm operations and compressed ops.
Signed-off-by: NSubhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NMark Brown <broonie@kernel.org>