ASoC: mediatek: switch to SPDX license tag

Add SPDX identifiers to all remaining files in sound/soc/mediatek/

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: mediatek: add MT7622 AFE support

This patch adds support for the MT7622 AFE which reuses MT2701 driver.

We also introduce the 'struct mt2701_soc_variants' to differentiate
between the SoC generations as there might be other (existing or future)
chips that use the same binding and driver, then being a little more
abstract could help in the long run.

Cc: Jia Zeng <jia.zeng@mediatek.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Reviewed-by: Garlic Tseng <garlic.tseng@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: mediatek: Add MTK_STREAM_NUM to mtk-base-afe.h

Add MTK_STREAM_NUM to common header and modify related stuff so that
the other SoCs can reuse it.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Reviewed-by: Garlic Tseng <garlic.tseng@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: mediatek: simplify the control logic of MT2701 I2S

This patch adjusts the mt2701_afe_i2s_ops to simplify the control
logic of the I2S path.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Reviewed-by: Garlic Tseng <garlic.tseng@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: mediatek: add some core clocks for MT2701 AFE

Add three core clocks for MT2701 AFE.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: mediatek: cleanup audio driver for MT2701

Cleanup unused code such as 'i2s_num' guard, headers, indentation
and some defines.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: mediatek: rework clock functions for MT2701

Reworks clock part to make it more reasonable. The current changes are:

- Replace regmap operations by CCF APIs. Doing so, we just need to handle
the element clocks and can also get accurate information via CCF.

- Rename clocks to make them more generic so that the future revisions
of the IP can adapt gracefully.

- Regroup 'aud_clks[]' by usage - the basic needs and I2S parts:

The new code just keep the common clocks in array and let SoC self decide
I2S numbers - If future chips have different sets of channels we will
add a little more abstract here.

Moreover, this patch moves I2S clocks to the struct mt2701_i2s_data
so that we can easily manage them when calls .prepare() and .shutdown().

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Tested-by: Garlic Tseng <garlic.tseng@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: mediatek: Fix an error checking code

Check the value returned by 'devm_clk_get()' instead of the clock
identifier which can never be an ERR code.

Fixes: d6f3710a56e1 ("ASoC: mediatek: add structure define and clock control for 2701")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: mediatek: add structure define and clock control for 2701

add structure define and clock control function for 2701.

Signed-off-by: Garlic Tseng <garlic.tseng@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>