From bbd7ffdbef6888459f301c5889f3b14ada38b913 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Wed, 8 Apr 2020 23:44:13 -0700 Subject: clk: Allow the common clk framework to be selectable Enable build testing and configuration control of the common clk framework so that more code coverage and testing can be done on the common clk framework across various architectures. This also nicely removes the requirement that architectures must select the framework when they don't use it in architecture code. There's one snag with doing this, and that's making sure that randconfig builds don't select this option when some architecture or platform implements 'struct clk' outside of the common clk framework. Introduce a new config option 'HAVE_LEGACY_CLK' to indicate those platforms that haven't migrated to the common clk framework and therefore shouldn't be allowed to select this new config option. Also add a note that we hope one day to remove this config entirely. Based on a patch by Mark Brown . Cc: Mark Brown Cc: Geert Uytterhoeven Cc: Mark Salter Cc: Aurelien Jacquiot Cc: Jiaxun Yang Cc: Guan Xuetao Cc: Russell King Cc: Arnd Bergmann Cc: Yoshinori Sato Cc: Rich Felker Cc: Thomas Bogendoerfer Cc: Cc: Cc: Cc: Cc: Link: https://lore.kernel.org/r/1470915049-15249-1-git-send-email-broonie@kernel.org Signed-off-by: Stephen Boyd Link: https://lkml.kernel.org/r/20200409064416.83340-8-sboyd@kernel.org Reviewed-by: Mark Brown Reviewed-by: Arnd Bergmann --- drivers/clk/Kconfig | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) (limited to 'drivers/clk/Kconfig') diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig index bcb257baed06..890bed62196d 100644 --- a/drivers/clk/Kconfig +++ b/drivers/clk/Kconfig @@ -7,8 +7,18 @@ config CLKDEV_LOOKUP config HAVE_CLK_PREPARE bool -config COMMON_CLK +config HAVE_LEGACY_CLK # TODO: Remove once all legacy users are migrated bool + select HAVE_CLK + help + Select this option when the clock API in is implemented + by platform/architecture code. This method is deprecated. Modern + code should select COMMON_CLK instead and not define a custom + 'struct clk'. + +menuconfig COMMON_CLK + bool "Common Clock Framework" + depends on !HAVE_LEGACY_CLK select HAVE_CLK_PREPARE select CLKDEV_LOOKUP select SRCU @@ -20,8 +30,7 @@ config COMMON_CLK Architectures utilizing the common struct clk should select this option. -menu "Common Clock Framework" - depends on COMMON_CLK +if COMMON_CLK config COMMON_CLK_WM831X tristate "Clock driver for WM831x/2x PMICs" @@ -362,4 +371,4 @@ source "drivers/clk/ti/Kconfig" source "drivers/clk/uniphier/Kconfig" source "drivers/clk/zynqmp/Kconfig" -endmenu +endif -- cgit v1.2.3