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nexedi
linux
Commits
6f83d30a
Commit
6f83d30a
authored
Sep 22, 2015
by
Stephen Boyd
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Merge branch 'clk-fixes' into clk-next
* clk-fixes: clk: samsung: fix cpu clock's flags checking
parents
7001b3f9
9e294bf8
Changes
1
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drivers/clk/samsung/clk-cpu.c
drivers/clk/samsung/clk-cpu.c
+5
-5
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drivers/clk/samsung/clk-cpu.c
View file @
6f83d30a
...
...
@@ -164,7 +164,7 @@ static int exynos_cpuclk_pre_rate_change(struct clk_notifier_data *ndata,
* the values for DIV_COPY and DIV_HPM dividers need not be set.
*/
div0
=
cfg_data
->
div0
;
if
(
test_bit
(
CLK_CPU_HAS_DIV1
,
&
cpuclk
->
flags
)
)
{
if
(
cpuclk
->
flags
&
CLK_CPU_HAS_DIV1
)
{
div1
=
cfg_data
->
div1
;
if
(
readl
(
base
+
E4210_SRC_CPU
)
&
E4210_MUX_HPM_MASK
)
div1
=
readl
(
base
+
E4210_DIV_CPU1
)
&
...
...
@@ -185,7 +185,7 @@ static int exynos_cpuclk_pre_rate_change(struct clk_notifier_data *ndata,
alt_div
=
DIV_ROUND_UP
(
alt_prate
,
tmp_rate
)
-
1
;
WARN_ON
(
alt_div
>=
MAX_DIV
);
if
(
test_bit
(
CLK_CPU_NEEDS_DEBUG_ALT_DIV
,
&
cpuclk
->
flags
)
)
{
if
(
cpuclk
->
flags
&
CLK_CPU_NEEDS_DEBUG_ALT_DIV
)
{
/*
* In Exynos4210, ATB clock parent is also mout_core. So
* ATB clock also needs to be mantained at safe speed.
...
...
@@ -206,7 +206,7 @@ static int exynos_cpuclk_pre_rate_change(struct clk_notifier_data *ndata,
writel
(
div0
,
base
+
E4210_DIV_CPU0
);
wait_until_divider_stable
(
base
+
E4210_DIV_STAT_CPU0
,
DIV_MASK_ALL
);
if
(
test_bit
(
CLK_CPU_HAS_DIV1
,
&
cpuclk
->
flags
)
)
{
if
(
cpuclk
->
flags
&
CLK_CPU_HAS_DIV1
)
{
writel
(
div1
,
base
+
E4210_DIV_CPU1
);
wait_until_divider_stable
(
base
+
E4210_DIV_STAT_CPU1
,
DIV_MASK_ALL
);
...
...
@@ -225,7 +225,7 @@ static int exynos_cpuclk_post_rate_change(struct clk_notifier_data *ndata,
unsigned
long
mux_reg
;
/* find out the divider values to use for clock data */
if
(
test_bit
(
CLK_CPU_NEEDS_DEBUG_ALT_DIV
,
&
cpuclk
->
flags
)
)
{
if
(
cpuclk
->
flags
&
CLK_CPU_NEEDS_DEBUG_ALT_DIV
)
{
while
((
cfg_data
->
prate
*
1000
)
!=
ndata
->
new_rate
)
{
if
(
cfg_data
->
prate
==
0
)
return
-
EINVAL
;
...
...
@@ -240,7 +240,7 @@ static int exynos_cpuclk_post_rate_change(struct clk_notifier_data *ndata,
writel
(
mux_reg
&
~
(
1
<<
16
),
base
+
E4210_SRC_CPU
);
wait_until_mux_stable
(
base
+
E4210_STAT_CPU
,
16
,
1
);
if
(
test_bit
(
CLK_CPU_NEEDS_DEBUG_ALT_DIV
,
&
cpuclk
->
flags
)
)
{
if
(
cpuclk
->
flags
&
CLK_CPU_NEEDS_DEBUG_ALT_DIV
)
{
div
|=
(
cfg_data
->
div0
&
E4210_DIV0_ATB_MASK
);
div_mask
|=
E4210_DIV0_ATB_MASK
;
}
...
...
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