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authorAnatolij Gustschin <agust@denx.de>2010-07-23 03:50:18 +0000
committerGrant Likely <grant.likely@secretlab.ca>2010-08-01 17:06:44 -0600
commit9e2089cbed7441a21d72a510897f0336afb06492 (patch)
tree04c89a0a7130ab03d281a698bfc39b169a926b36 /arch/powerpc/platforms/512x
parent12fb0eb4c963452f727752aae03bbef192abed40 (diff)
powerpc/512x: add clock structure for Video-IN (VIU) unit
Allows using clk_get()/clk_enable()/clk_disable() for VIU clock in the v4l2 video driver. Signed-off-by: Hongjun Chen <hong-jun.chen@freescale.com> Signed-off-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'arch/powerpc/platforms/512x')
-rw-r--r--arch/powerpc/platforms/512x/clock.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/512x/clock.c b/arch/powerpc/platforms/512x/clock.c
index 4c42246b86a..e1c5cd6650b 100644
--- a/arch/powerpc/platforms/512x/clock.c
+++ b/arch/powerpc/platforms/512x/clock.c
@@ -292,6 +292,15 @@ static void diu_clk_calc(struct clk *clk)
clk->rate = rate;
}
+static void viu_clk_calc(struct clk *clk)
+{
+ unsigned long rate;
+
+ rate = sys_clk.rate;
+ rate /= 2;
+ clk->rate = rate;
+}
+
static void half_clk_calc(struct clk *clk)
{
clk->rate = clk->parent->rate / 2;
@@ -412,6 +421,14 @@ static struct clk diu_clk = {
.calc = diu_clk_calc,
};
+static struct clk viu_clk = {
+ .name = "viu_clk",
+ .flags = CLK_HAS_CTRL,
+ .reg = 1,
+ .bit = 18,
+ .calc = viu_clk_calc,
+};
+
static struct clk axe_clk = {
.name = "axe_clk",
.flags = CLK_HAS_CTRL,
@@ -535,6 +552,7 @@ struct clk *rate_clks[] = {
&ref_clk,
&sys_clk,
&diu_clk,
+ &viu_clk,
&csb_clk,
&e300_clk,
&ips_clk,