mfd: exynos-lpass: 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>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210924133332.112092-1-krzysztof.kozlowski@canonical.com

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 251ffcb..f99334f 100644 (file)
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -417,7 +417,9 @@ config MFD_EXYNOS_LPASS
        select REGMAP_MMIO
        help
          Select this option to enable support for Samsung Exynos Low Power
-         Audio Subsystem.
+         Audio Subsystem present on some of Samsung Exynos
+         SoCs (e.g. Exynos5433).
+         Choose Y here only if you build for such Samsung SoC.
 
 config MFD_GATEWORKS_GSC
        tristate "Gateworks System Controller"