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ARM: samsung: make SAMSUNG_DMADEV optional 

The only remaining driver using the samsung dmadev code is the broken
samsung-ac97 sound driver. However, as found by Russell's autobuilder,
the elaborate dependency chains around it cause problems with
circular dependencies.

This is an attempt to simplify those dependencies by making the
SAMSUNG_DMADEV option user-selectable. I also try to keep the
default settings for all related options unchanged, so we don't
introduce any regressions against earlier testing on linux-next.

In particular, all s3c64xx and s5p* platforms keep selecting the
pl330 and pl08x drivers they require, but the select statement
is now moved towards the main platform option, and it remains
optional by unselecting CONFIG_DMADEVICES.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Kukjin Kim <kgene.kim@samsung.com>
This commit is contained in:
Arnd Bergmann 2014-06-13 12:04:39 +02:00
parent 8c0945240e
commit 27873b052e
6 changed files with 16 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm/mach-s3c24xx/Kconfig
View File

@ -117,7 +117,7 @@ config S3C24XX_SETUP_TS
Compile in platform device definition for Samsung TouchScreen.
config S3C24XX_DMA
bool "S3C2410 DMA support"
bool "S3C2410 DMA support (deprecated)"
select S3C_DMA
help
S3C2410 DMA support. This is needed for drivers like sound which

4
arch/arm/mach-s3c64xx/Kconfig
View File

@ -18,9 +18,9 @@ config CPU_S3C6410
Enable S3C6410 CPU support
config S3C64XX_PL080
bool "S3C64XX DMA using generic PL08x driver"
def_bool DMADEVICES
select ARM_AMBA
select AMBA_PL08X
select SAMSUNG_DMADEV
config S3C64XX_SETUP_SDHCI
bool

6
arch/arm/mach-s5p64x0/Kconfig
View File

@ -9,16 +9,18 @@ if ARCH_S5P64X0
config CPU_S5P6440
bool
select ARM_AMBA
select PL330_DMA if DMADEVICES
select S5P_SLEEP if PM
select SAMSUNG_DMADEV
select SAMSUNG_WAKEMASK if PM
help
Enable S5P6440 CPU support
config CPU_S5P6450
bool
select ARM_AMBA
select PL330_DMA if DMADEVICES
select S5P_SLEEP if PM
select SAMSUNG_DMADEV
select SAMSUNG_WAKEMASK if PM
help
Enable S5P6450 CPU support

3
arch/arm/mach-s5pc100/Kconfig
View File

@ -9,8 +9,9 @@ if ARCH_S5PC100
config CPU_S5PC100
bool
select ARM_AMBA
select PL330_DMA if DMADEVICES
select S5P_EXT_INT
select SAMSUNG_DMADEV
help
Enable S5PC100 CPU support

3
arch/arm/mach-s5pv210/Kconfig
View File

@ -11,10 +11,11 @@ if ARCH_S5PV210
config CPU_S5PV210
bool
select ARM_AMBA
select PL330_DMA if DMADEVICES
select S5P_EXT_INT
select S5P_PM if PM
select S5P_SLEEP if PM
select SAMSUNG_DMADEV
help
Enable S5PV210 CPU support

11
arch/arm/plat-samsung/Kconfig
View File

@ -407,17 +407,16 @@ config SAMSUNG_PM_GPIO
Include legacy GPIO power management code for platforms not using
pinctrl-samsung driver.
endif
config SAMSUNG_DMADEV
bool
select ARM_AMBA
bool "Use legacy Samsung DMA abstraction"
depends on CPU_S5PV210 || CPU_S5PC100 || ARCH_S5P64X0 || ARCH_S3C64XX
select DMADEVICES
select PL330_DMA if (ARCH_EXYNOS5 || ARCH_EXYNOS4 || CPU_S5PV210 || CPU_S5PC100 || \
CPU_S5P6450 || CPU_S5P6440)
default y
help
Use DMA device engine for PL330 DMAC.
endif
config S5P_DEV_MFC
bool
help