[alsa-devel] [PATCH v3 4/6] ARM: S5P: Add EPLL rate change warning

[Seungwhan Youn]

This patch adds warning about changing EPLL rate to notice that other
driver that controls H/W, which is using EPLL, will has unknown effects
by this EPLL rate change.

Signed-off-by: Seungwhan Youn <sw.youn at samsung.com>
---
This patch is re-worked to avoid conflict with previous re-worked patch(
[PATCH v3 1/6] ARM: S5P: Reduce duplicated EPLL control codes).

This patch also depends on previous v1 and v2 petch-set which was accepted,
and depends on re-workd patch v3 1/6.
--
 arch/arm/mach-s5p64x0/clock-s5p6440.c |    3 +++
 arch/arm/mach-s5p64x0/clock-s5p6450.c |    3 +++
 arch/arm/mach-s5pc100/clock.c         |    3 +++
 arch/arm/mach-s5pv210/clock.c         |    3 +++
 4 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-s5p64x0/clock-s5p6440.c b/arch/arm/mach-s5p64x0/clock-s5p6440.c
index cfccdff..0d728d3 100644
--- a/arch/arm/mach-s5p64x0/clock-s5p6440.c
+++ b/arch/arm/mach-s5p64x0/clock-s5p6440.c
@@ -79,6 +79,9 @@ static int s5p6440_epll_set_rate(struct clk *clk, unsigned long rate)
 	__raw_writel(epll_con, S5P64X0_EPLL_CON);
 	__raw_writel(epll_con_k, S5P64X0_EPLL_CON_K);
 
+	printk(KERN_WARNING "EPLL Rate changes from %lu to %lu\n",
+			clk->rate, rate);
+
 	clk->rate = rate;
 
 	return 0;
diff --git a/arch/arm/mach-s5p64x0/clock-s5p6450.c b/arch/arm/mach-s5p64x0/clock-s5p6450.c
index f1498d3..1b9b0f9 100644
--- a/arch/arm/mach-s5p64x0/clock-s5p6450.c
+++ b/arch/arm/mach-s5p64x0/clock-s5p6450.c
@@ -80,6 +80,9 @@ static int s5p6450_epll_set_rate(struct clk *clk, unsigned long rate)
 	__raw_writel(epll_con, S5P64X0_EPLL_CON);
 	__raw_writel(epll_con_k, S5P64X0_EPLL_CON_K);
 
+	printk(KERN_WARNING "EPLL Rate changes from %lu to %lu\n",
+			clk->rate, rate);
+
 	clk->rate = rate;
 
 	return 0;
diff --git a/arch/arm/mach-s5pc100/clock.c b/arch/arm/mach-s5pc100/clock.c
index 42c2636..9e192a0 100644
--- a/arch/arm/mach-s5pc100/clock.c
+++ b/arch/arm/mach-s5pc100/clock.c
@@ -323,6 +323,9 @@ static int s5pc100_epll_set_rate(struct clk *clk, unsigned long rate)
 
 	__raw_writel(epll_con, S5P_EPLL_CON);
 
+	printk(KERN_WARNING "EPLL Rate changes from %lu to %lu\n",
+			clk->rate, rate);
+
 	clk->rate = rate;
 
 	return 0;
diff --git a/arch/arm/mach-s5pv210/clock.c b/arch/arm/mach-s5pv210/clock.c
index fdfadac..25eb839 100644
--- a/arch/arm/mach-s5pv210/clock.c
+++ b/arch/arm/mach-s5pv210/clock.c
@@ -1066,6 +1066,9 @@ static int s5pv210_epll_set_rate(struct clk *clk, unsigned long rate)
 	__raw_writel(epll_con, S5P_EPLL_CON);
 	__raw_writel(epll_con_k, S5P_EPLL_CON1);
 
+	printk(KERN_WARNING "EPLL Rate changes from %lu to %lu\n",
+			clk->rate, rate);
+
 	clk->rate = rate;
 
 	return 0;
-- 
1.6.2.5