From: Rajendra Nayak Date: Fri, 1 Jun 2012 08:32:49 +0000 (+0530) Subject: ARM: OMAP: clock: Define a function to enable clocks at init X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=8577413c0a26e9bc0b412289640243f3b20f4517;p=linux-beck.git ARM: OMAP: clock: Define a function to enable clocks at init Platform code can use omap2_clk_enable_init_clocks() to enable a list of clocks that are needed to be enabled at init. Signed-off-by: Rajendra Nayak Signed-off-by: Mike Turquette [paul@pwsan.com: added kerneldoc to non-trivial new function] Signed-off-by: Paul Walmsley --- diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c index c64203e55d19..744e6eb17b26 100644 --- a/arch/arm/mach-omap2/clock.c +++ b/arch/arm/mach-omap2/clock.c @@ -580,6 +580,27 @@ int omap2_clk_disable_autoidle_all(void) return 0; } +/** + * omap2_clk_enable_init_clocks - prepare & enable a list of clocks + * @clk_names: ptr to an array of strings of clock names to enable + * @num_clocks: number of clock names in @clk_names + * + * Prepare and enable a list of clocks, named by @clk_names. No + * return value. XXX Deprecated; only needed until these clocks are + * properly claimed and enabled by the drivers or core code that uses + * them. XXX What code disables & calls clk_put on these clocks? + */ +void omap2_clk_enable_init_clocks(const char **clk_names, u8 num_clocks) +{ + struct clk *init_clk; + int i; + + for (i = 0; i < num_clocks; i++) { + init_clk = clk_get(NULL, clk_names[i]); + clk_prepare_enable(init_clk); + } +} + const struct clk_hw_omap_ops clkhwops_wait = { .find_idlest = omap2_clk_dflt_find_idlest, .find_companion = omap2_clk_dflt_find_companion, diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h index 20a3be77cb8b..e669fc839859 100644 --- a/arch/arm/mach-omap2/clock.h +++ b/arch/arm/mach-omap2/clock.h @@ -538,6 +538,7 @@ void omap2_clk_dflt_find_idlest(struct clk_hw_omap *clk, void omap2_init_clk_hw_omap_clocks(struct clk *clk); int omap2_clk_enable_autoidle_all(void); int omap2_clk_disable_autoidle_all(void); +void omap2_clk_enable_init_clocks(const char **clk_names, u8 num_clocks); #else int omap2_dflt_clk_enable(struct clk *clk); void omap2_dflt_clk_disable(struct clk *clk);