From 92b7eb8ffc0741f1fd5fbd5458a466d608310442 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Thu, 22 Jun 2006 22:18:21 +0100 Subject: [PATCH] [ARM] 3628/1: S3C24XX: add get_rate call to struct clk Patch from Ben Dooks Add a get_rate call to allow an given clock to over-ride the clk_get_rate() call. This provides support for clocks which rely on division of their parent to correctly report their frequency when the parent can also change. Signed-off-by: Ben Dooks Signed-off-by: Russell King --- arch/arm/mach-s3c2410/clock.c | 7 +++++-- arch/arm/mach-s3c2410/clock.h | 1 + 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-s3c2410/clock.c b/arch/arm/mach-s3c2410/clock.c index f553e5ee747..c5c93c333ac 100644 --- a/arch/arm/mach-s3c2410/clock.c +++ b/arch/arm/mach-s3c2410/clock.c @@ -148,8 +148,11 @@ unsigned long clk_get_rate(struct clk *clk) if (clk->rate != 0) return clk->rate; - while (clk->parent != NULL && clk->rate == 0) - clk = clk->parent; + if (clk->get_rate != NULL) + return (clk->get_rate)(clk); + + if (clk->parent != NULL) + return clk_get_rate(clk->parent); return clk->rate; } diff --git a/arch/arm/mach-s3c2410/clock.h b/arch/arm/mach-s3c2410/clock.h index 1bee5708c35..9456c81eb5d 100644 --- a/arch/arm/mach-s3c2410/clock.h +++ b/arch/arm/mach-s3c2410/clock.h @@ -22,6 +22,7 @@ struct clk { int (*enable)(struct clk *, int enable); int (*set_rate)(struct clk *c, unsigned long rate); + unsigned long (*get_rate)(struct clk *c); unsigned long (*round_rate)(struct clk *c, unsigned long rate); int (*set_parent)(struct clk *c, struct clk *parent); }; -- 2.20.1