pwm: samsung: Describe driver in Kconfig

Describe better which driver applies to which SoC, to make configuring
kernel for Samsung SoC easier.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

diff --git a/drivers/pwm/Kconfig b/drivers/pwm/Kconfig
index aa29841..21e3b05 100644 (file)
--- a/drivers/pwm/Kconfig
+++ b/drivers/pwm/Kconfig
@@ -476,7 +476,9 @@ config PWM_SAMSUNG
        depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST
        depends on HAS_IOMEM
        help
-         Generic PWM framework driver for Samsung.
+         Generic PWM framework driver for Samsung S3C24xx, S3C64xx, S5Pv210
+         and Exynos SoCs.
+         Choose Y here only if you build for such Samsung SoC.
 
          To compile this driver as a module, choose M here: the module
          will be called pwm-samsung.