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clk: samsung: Allow modular build of the Audio Subsystem CLKCON driver

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Any clock dependencies can be properly handled with deferred probing
so we can remove core_initcall and switch to a proper loadable platform
driver module.
This change has been tested on Exynos4412 Odroid U3 based board.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/1467987300-31450-1-git-send-email-s.nawrocki@samsung.com
This commit is contained in:
Sylwester Nawrocki 2016-07-08 16:15:00 +02:00 committed by Michael Turquette
parent 4c7c28ffe9
commit 4d252fd571
3 changed files with 11 additions and 12 deletions
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9
drivers/clk/samsung/Kconfig
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@ -9,6 +9,15 @@ config EXYNOS_ARM64_COMMON_CLK
bool "Samsung Exynos ARMv8-family clock controller support" if COMPILE_TEST
depends on COMMON_CLK_SAMSUNG
config EXYNOS_AUDSS_CLK_CON
tristate "Samsung Exynos AUDSS clock controller support"
depends on COMMON_CLK_SAMSUNG
default y if ARCH_EXYNOS
help
Support for the Audio Subsystem CLKCON clock controller present
on some Exynos SoC variants. Choose M or Y here if you want to
use audio devices such as I2S, PCM, etc.
# For S3C24XX platforms, select following symbols:
config S3C2410_COMMON_CLK
bool "Samsung S3C2410 clock controller support" if COMPILE_TEST

2
drivers/clk/samsung/Makefile
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@ -12,7 +12,7 @@ obj-$(CONFIG_SOC_EXYNOS5410) += clk-exynos5410.o
obj-$(CONFIG_SOC_EXYNOS5420) += clk-exynos5420.o
obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK) += clk-exynos5433.o
obj-$(CONFIG_SOC_EXYNOS5440) += clk-exynos5440.o
obj-$(CONFIG_ARCH_EXYNOS) += clk-exynos-audss.o
obj-$(CONFIG_EXYNOS_AUDSS_CLK_CON) += clk-exynos-audss.o
obj-$(CONFIG_ARCH_EXYNOS) += clk-exynos-clkout.o
obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK) += clk-exynos7.o
obj-$(CONFIG_S3C2410_COMMON_CLK)+= clk-s3c2410.o

12
drivers/clk/samsung/clk-exynos-audss.c
View File

@ -273,17 +273,7 @@ static struct platform_driver exynos_audss_clk_driver = {
.remove = exynos_audss_clk_remove,
};
static int __init exynos_audss_clk_init(void)
{
return platform_driver_register(&exynos_audss_clk_driver);
}
core_initcall(exynos_audss_clk_init);
static void __exit exynos_audss_clk_exit(void)
{
platform_driver_unregister(&exynos_audss_clk_driver);
}
module_exit(exynos_audss_clk_exit);
module_platform_driver(exynos_audss_clk_driver);
MODULE_AUTHOR("Padmavathi Venna <padma.v@samsung.com>");
MODULE_DESCRIPTION("Exynos Audio Subsystem Clock Controller");