ASoC: amd: ps: update license

To align with AMD SoundWire manager driver license, update license as
GPL-2.0-only for Pink Sardine ACP PCI driver and corresponding child
drivers.

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://msgid.link/r/20240222102656.631144-1-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: amd: update pm_runtime enable sequence

pm_runtime_allow() is not needed for ACP child platform devices.
Replace pm_runtime_allow() with pm_runtime_mark_last_busy()
& pm_runtime_set_active() in pm_runtime enable sequence for
ACP child platform drivers.

Signed-off-by: Arun Gopal <arungopal.kondaveeti@amd.com>
Link: https://lore.kernel.org/r/Message-Id: <20230623214150.4058721-1-arungopal.kondaveeti@amd.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: amd: ps: fix for acp_lock access in pdm driver

Sending the mutex address(acp_lock) as platform
data during ACP PDM platform driver register sequence,
its creating copy of the platform data.
Referencing this platform data in ACP PDM driver results
incorrect reference to the common lock usage.

Instead of directly passing the lock address as platform
data, retrieve it from parent driver data structure
and use the same lock reference in ACP PDM driver.

Fixes: 45aa83cb9388 ("ASoC: amd: ps: use acp_lock to protect common registers in pdm driver")

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/20230525113000.1290758-1-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: amd: ps: remove the register read and write wrappers.

Instead of acp63_readl() and acp63_writel() wrappers
readl and writel functions can be used directly.
Remove acp63_readl() and acp63_writel() wrappers.

Signed-off-by: Syed Saba Kareem <Syed.SabaKareem@amd.com
Reviewed-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com
Link: https://lore.kernel.org/r/20230426122219.3745586-1-Syed.SabaKareem@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org

ASoC: amd: ps: Convert to platform remove callback returning void

The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20230315150745.67084-19-u.kleine-koenig@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: amd: ps: Add a module parameter to influence pdm_gain

In case of regressions for any users that the new pdm_gain value is
too high and for additional debugging, introduce a module parameter
that would let them configure it.

This parameter should be removed in the future:
* If it's determined that the parameter is not needed, just hardcode
the correct value as before
* If users do end up using it to debug and report different values
we should introduce a config knob that can have policy set by ucm.

Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230131184653.10216-7-mario.limonciello@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: amd: ps: use acp_lock to protect common registers in pdm driver

Retrieve acp_lock mutex as platform data and use it for protecting
ACP common registers access in acp pdm driver.

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/20230104055435.321327-2-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: amd: fix ACP version typo mistake

Pink Sardine is based on ACP6.3 architecture.
This patch fixes the typo mistake acp6.2 -> acp6.3

Signed-off-by: syed saba kareem <syed.sabakareem@amd.com>
Link: https://lore.kernel.org/r/20221104121001.207992-1-Syed.SabaKareem@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: amd: add acp6.2 pdm driver pm ops

Add acp6.2 pdm driver pm ops.

Signed-off-by: Syed Saba Kareem <Syed.SabaKareem@amd.com>
Reviewed-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/20220827165657.2343818-10-Syed.SabaKareem@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: amd: add acp6.2 pdm driver dma ops

This patch adds PDM driver DMA operations for Pink Sardine Platform.

Signed-off-by: Syed Saba Kareem <Syed.SabaKareem@amd.com>
Reviewed-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/20220827165657.2343818-8-Syed.SabaKareem@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: amd: add acp6.2 pdm platform driver

PDM platform driver binds to the platform device created by
ACP6.2 PCI device. PDM driver registers ALSA DMA and CPU DAI
components with ASoC framework.

Signed-off-by: Syed Saba Kareem <Syed.SabaKareem@amd.com>
Reviewed-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/20220827165657.2343818-6-Syed.SabaKareem@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>