[PATCH 05/11] ARM: S5P6440: Remove usage of clk_p and add clk_pclk clock
Kukjin Kim
kgene.kim at samsung.com
Wed May 12 20:27:13 EDT 2010
From: Thomas Abraham <thomas.ab at samsung.com>
The clk_p clock is of type 'struct clk' whereas on S5P6440,
the pclk is more suitable to be of type 'struct clksrc_clk'
(since pclk clock is divided version of hclk).
This patch modifies the following.
1. Adds the 'clk_pclk' clock which is of type 'struct clksrc_clk'.
2. Adds clk_pclk into the list of sysclks.
3. The clock rate 'pclk' is modified to be derived from clk_pclk.
Signed-off-by: Thomas Abraham <thomas.ab at samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim at samsung.com>
---
arch/arm/mach-s5p6440/clock.c | 12 +++++++++++-
1 files changed, 11 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-s5p6440/clock.c b/arch/arm/mach-s5p6440/clock.c
index bc0458e..61bc85b 100644
--- a/arch/arm/mach-s5p6440/clock.c
+++ b/arch/arm/mach-s5p6440/clock.c
@@ -275,6 +275,15 @@ static struct clksrc_clk clk_hclk = {
.reg_div = { .reg = S5P_CLK_DIV0, .shift = 8, .size = 4 },
};
+static struct clksrc_clk clk_pclk = {
+ .clk = {
+ .name = "clk_pclk",
+ .id = -1,
+ .parent = &clk_hclk.clk,
+ },
+ .reg_div = { .reg = S5P_CLK_DIV0, .shift = 12, .size = 4 },
+};
+
int s5p6440_clk48m_ctrl(struct clk *clk, int enable)
{
unsigned long flags;
@@ -590,6 +599,7 @@ static struct clksrc_clk *sysclks[] = {
&clk_dout_mpll,
&clk_armclk,
&clk_hclk,
+ &clk_pclk,
};
void __init_or_cpufreq s5p6440_setup_clocks(void)
@@ -639,7 +649,7 @@ void __init_or_cpufreq s5p6440_setup_clocks(void)
fclk = clk_get_rate(&clk_armclk.clk);
hclk = clk_get_rate(&clk_hclk.clk);
- pclk = hclk / GET_DIV(clkdiv0, S5P_CLKDIV0_PCLK);
+ pclk = clk_get_rate(&clk_pclk.clk);
if (__raw_readl(S5P_OTHERS) & S5P_OTHERS_HCLK_LOW_SEL_MPLL) {
/* Asynchronous mode */
--
1.6.2.5
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