On 08/27/12 13:12, Sylwester Nawrocki wrote:
Add missing get_rate callback for the "camif-upll" clock, so frequency
of this clock is properly reported with clk_get_rate().
Signed-off-by: Sylwester Nawrocki<sylvester.nawrocki@xxxxxxxxx>
---
arch/arm/mach-s3c24xx/clock-s3c2440.c | 14 ++++++++++++++
1 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-s3c24xx/clock-s3c2440.c b/arch/arm/mach-s3c24xx/clock-s3c2440.c
index cb2883d..749220f 100644
--- a/arch/arm/mach-s3c24xx/clock-s3c2440.c
+++ b/arch/arm/mach-s3c24xx/clock-s3c2440.c
@@ -87,6 +87,19 @@ static int s3c2440_camif_upll_setrate(struct clk *clk, unsigned long rate)
return 0;
}
+static unsigned long s3c2440_camif_upll_getrate(struct clk *clk)
+{
+ unsigned long parent_rate = clk_get_rate(clk->parent);
+ unsigned long camdivn = __raw_readl(S3C2440_CAMDIVN);
+
+ if (!(camdivn& S3C2440_CAMDIVN_CAMCLK_SEL))
+ return parent_rate;
+
+ camdivn&= S3C2440_CAMDIVN_CAMCLK_MASK;
+
+ return parent_rate / (camdivn + 1) / 2;
Well, why do we need '/ 2' here?
+}
+
/* Extra S3C2440 clocks */
static struct clk s3c2440_clk_cam = {
@@ -99,6 +112,7 @@ static struct clk s3c2440_clk_cam_upll = {
.name = "camif-upll",
.ops =&(struct clk_ops) {
.set_rate = s3c2440_camif_upll_setrate,
+ .get_rate = s3c2440_camif_upll_getrate,
.round_rate = s3c2440_camif_upll_round,
},
};
Thanks.
Best regards,
Kgene.
--
Kukjin Kim <kgene.kim@xxxxxxxxxxx>, Senior Engineer,
SW Solution Development Team, Samsung Electronics Co., Ltd.
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