[PATCH v2] ASoC: atmel: ATMEL drivers depend on HAS_DMA

[Randy Dunlap]

On a config (such as arch/sh/) which does not set HAS_DMA when MMU
is not set, several ATMEL ASoC drivers select symbols that cause
kconfig warnings. There is one "depends on HAS_DMA" here but several
more are needed to prevent kconfig warnings since 'select' does not
recognize any dependencies.

Fix the following kconfig warnings:

WARNING: unmet direct dependencies detected for SND_ATMEL_SOC_PDC
  Depends on [n]: SOUND [=m] && !UML && SND [=m] && SND_SOC [=m] && SND_ATMEL_SOC [=m] && HAS_DMA [=n]
  Selected by [m]:
  - SND_ATMEL_SOC_SSC [=m] && SOUND [=m] && !UML && SND [=m] && SND_SOC [=m] && SND_ATMEL_SOC [=m]
  - SND_ATMEL_SOC_SSC_PDC [=m] && SOUND [=m] && !UML && SND [=m] && SND_SOC [=m] && SND_ATMEL_SOC [=m] && ATMEL_SSC [=m]

WARNING: unmet direct dependencies detected for SND_ATMEL_SOC_SSC_PDC
  Depends on [n]: SOUND [=m] && !UML && SND [=m] && SND_SOC [=m] && SND_ATMEL_SOC [=m] && ATMEL_SSC [=m] && HAS_DMA [=n]
  Selected by [m]:
  - SND_AT91_SOC_SAM9G20_WM8731 [=m] && SOUND [=m] && !UML && SND [=m] && SND_SOC [=m] && SND_ATMEL_SOC [=m] && (ARCH_AT91 || COMPILE_TEST [=y]) && ATMEL_SSC [=m] && SND_SOC_I2C_AND_SPI [=m]

WARNING: unmet direct dependencies detected for SND_ATMEL_SOC_SSC
  Depends on [n]: SOUND [=m] && !UML && SND [=m] && SND_SOC [=m] && SND_ATMEL_SOC [=m] && HAS_DMA [=n]
  Selected by [m]:
  - SND_ATMEL_SOC_SSC_DMA [=m] && SOUND [=m] && !UML && SND [=m] && SND_SOC [=m] && SND_ATMEL_SOC [=m] && ATMEL_SSC [=m]

WARNING: unmet direct dependencies detected for SND_ATMEL_SOC_SSC_DMA
  Depends on [n]: SOUND [=m] && !UML && SND [=m] && SND_SOC [=m] && SND_ATMEL_SOC [=m] && ATMEL_SSC [=m] && HAS_DMA [=n]
  Selected by [m]:
  - SND_ATMEL_SOC_WM8904 [=m] && SOUND [=m] && !UML && SND [=m] && SND_SOC [=m] && SND_ATMEL_SOC [=m] && (ARCH_AT91 || COMPILE_TEST [=y]) && ATMEL_SSC [=m] && I2C [=m]
  - SND_AT91_SOC_SAM9X5_WM8731 [=m] && SOUND [=m] && !UML && SND [=m] && SND_SOC [=m] && SND_ATMEL_SOC [=m] && (ARCH_AT91 || COMPILE_TEST [=y]) && ATMEL_SSC [=m] && SND_SOC_I2C_AND_SPI [=m]

Fixes: 3951e4aae2ce ("ASoC: atmel-pcm: dma support based on pcm dmaengine")
Fixes: 18291410557f ("ASoC: atmel: enable SOC_SSC_PDC and SOC_SSC_DMA in Kconfig")
Fixes: 061981ff8cc8 ("ASoC: atmel: properly select dma driver state")
Signed-off-by: Randy Dunlap <rdunlap at infradead.org>
Cc: Codrin Ciubotariu <codrin.ciubotariu at microchip.com>
Cc: alsa-devel at alsa-project.org
Cc: Liam Girdwood <lgirdwood at gmail.com>
Cc: Mark Brown <broonie at kernel.org>
Cc: Michał Mirosław <mirq-linux at rere.qmqm.pl>
Cc: Alexandre Belloni <alexandre.belloni at free-electrons.com>
---
v2: rebase & resend;
    drop Cc: to Bo Shen <voice.shen at atmel.com> # bounced

 sound/soc/atmel/Kconfig |    6 ++++++
 1 file changed, 6 insertions(+)

--- linux-next-20210628.orig/sound/soc/atmel/Kconfig
+++ linux-next-20210628/sound/soc/atmel/Kconfig
@@ -19,12 +19,14 @@ config SND_ATMEL_SOC_DMA
 
 config SND_ATMEL_SOC_SSC
 	tristate
+	depends on HAS_DMA
 	select SND_ATMEL_SOC_DMA
 	select SND_ATMEL_SOC_PDC
 
 config SND_ATMEL_SOC_SSC_PDC
 	tristate "SoC PCM DAI support for AT91 SSC controller using PDC"
 	depends on ATMEL_SSC
+	depends on HAS_DMA
 	select SND_ATMEL_SOC_PDC
 	select SND_ATMEL_SOC_SSC
 	help
@@ -34,6 +36,7 @@ config SND_ATMEL_SOC_SSC_PDC
 config SND_ATMEL_SOC_SSC_DMA
 	tristate "SoC PCM DAI support for AT91 SSC controller using DMA"
 	depends on ATMEL_SSC
+	depends on HAS_DMA
 	select SND_ATMEL_SOC_DMA
 	select SND_ATMEL_SOC_SSC
 	help
@@ -44,6 +47,7 @@ config SND_AT91_SOC_SAM9G20_WM8731
 	tristate "SoC Audio support for WM8731-based At91sam9g20 evaluation board"
 	depends on ARCH_AT91 || COMPILE_TEST
 	depends on ATMEL_SSC && SND_SOC_I2C_AND_SPI
+	depends on HAS_DMA
 	select SND_ATMEL_SOC_SSC_PDC
 	select SND_SOC_WM8731
 	help
@@ -54,6 +58,7 @@ config SND_ATMEL_SOC_WM8904
 	tristate "Atmel ASoC driver for boards using WM8904 codec"
 	depends on ARCH_AT91 || COMPILE_TEST
 	depends on ATMEL_SSC && I2C
+	depends on HAS_DMA
 	select SND_ATMEL_SOC_SSC_DMA
 	select SND_SOC_WM8904
 	help
@@ -64,6 +69,7 @@ config SND_AT91_SOC_SAM9X5_WM8731
 	tristate "SoC Audio support for WM8731-based at91sam9x5 board"
 	depends on ARCH_AT91 || COMPILE_TEST
 	depends on ATMEL_SSC && SND_SOC_I2C_AND_SPI
+	depends on HAS_DMA
 	select SND_ATMEL_SOC_SSC_DMA
 	select SND_SOC_WM8731
 	help