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f68453e0
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f68453e0
编写于
12月 15, 2011
作者:
O
Olof Johansson
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差异文件
Merge branch 'davinci/features' into next/devel
* davinci/features: ARM: davinci: add support for multiple power domains
上级
2da994e6
99b2034c
变更
3
隐藏空白更改
内联
并排
Showing
3 changed file
with
10 addition
and
17 deletion
+10
-17
arch/arm/mach-davinci/clock.c
arch/arm/mach-davinci/clock.c
+3
-10
arch/arm/mach-davinci/clock.h
arch/arm/mach-davinci/clock.h
+5
-5
arch/arm/mach-davinci/dm644x.c
arch/arm/mach-davinci/dm644x.c
+2
-2
未找到文件。
arch/arm/mach-davinci/clock.c
浏览文件 @
f68453e0
...
@@ -31,19 +31,12 @@ static LIST_HEAD(clocks);
...
@@ -31,19 +31,12 @@ static LIST_HEAD(clocks);
static
DEFINE_MUTEX
(
clocks_mutex
);
static
DEFINE_MUTEX
(
clocks_mutex
);
static
DEFINE_SPINLOCK
(
clockfw_lock
);
static
DEFINE_SPINLOCK
(
clockfw_lock
);
static
unsigned
psc_domain
(
struct
clk
*
clk
)
{
return
(
clk
->
flags
&
PSC_DSP
)
?
DAVINCI_GPSC_DSPDOMAIN
:
DAVINCI_GPSC_ARMDOMAIN
;
}
static
void
__clk_enable
(
struct
clk
*
clk
)
static
void
__clk_enable
(
struct
clk
*
clk
)
{
{
if
(
clk
->
parent
)
if
(
clk
->
parent
)
__clk_enable
(
clk
->
parent
);
__clk_enable
(
clk
->
parent
);
if
(
clk
->
usecount
++
==
0
&&
(
clk
->
flags
&
CLK_PSC
))
if
(
clk
->
usecount
++
==
0
&&
(
clk
->
flags
&
CLK_PSC
))
davinci_psc_config
(
psc_domain
(
clk
)
,
clk
->
gpsc
,
clk
->
lpsc
,
davinci_psc_config
(
clk
->
domain
,
clk
->
gpsc
,
clk
->
lpsc
,
true
,
clk
->
flags
);
true
,
clk
->
flags
);
}
}
...
@@ -53,7 +46,7 @@ static void __clk_disable(struct clk *clk)
...
@@ -53,7 +46,7 @@ static void __clk_disable(struct clk *clk)
return
;
return
;
if
(
--
clk
->
usecount
==
0
&&
!
(
clk
->
flags
&
CLK_PLL
)
&&
if
(
--
clk
->
usecount
==
0
&&
!
(
clk
->
flags
&
CLK_PLL
)
&&
(
clk
->
flags
&
CLK_PSC
))
(
clk
->
flags
&
CLK_PSC
))
davinci_psc_config
(
psc_domain
(
clk
)
,
clk
->
gpsc
,
clk
->
lpsc
,
davinci_psc_config
(
clk
->
domain
,
clk
->
gpsc
,
clk
->
lpsc
,
false
,
clk
->
flags
);
false
,
clk
->
flags
);
if
(
clk
->
parent
)
if
(
clk
->
parent
)
__clk_disable
(
clk
->
parent
);
__clk_disable
(
clk
->
parent
);
...
@@ -237,7 +230,7 @@ static int __init clk_disable_unused(void)
...
@@ -237,7 +230,7 @@ static int __init clk_disable_unused(void)
pr_debug
(
"Clocks: disable unused %s
\n
"
,
ck
->
name
);
pr_debug
(
"Clocks: disable unused %s
\n
"
,
ck
->
name
);
davinci_psc_config
(
psc_domain
(
ck
)
,
ck
->
gpsc
,
ck
->
lpsc
,
davinci_psc_config
(
ck
->
domain
,
ck
->
gpsc
,
ck
->
lpsc
,
false
,
ck
->
flags
);
false
,
ck
->
flags
);
}
}
spin_unlock_irq
(
&
clockfw_lock
);
spin_unlock_irq
(
&
clockfw_lock
);
...
...
arch/arm/mach-davinci/clock.h
浏览文件 @
f68453e0
...
@@ -93,6 +93,7 @@ struct clk {
...
@@ -93,6 +93,7 @@ struct clk {
u8
usecount
;
u8
usecount
;
u8
lpsc
;
u8
lpsc
;
u8
gpsc
;
u8
gpsc
;
u8
domain
;
u32
flags
;
u32
flags
;
struct
clk
*
parent
;
struct
clk
*
parent
;
struct
list_head
children
;
/* list of children */
struct
list_head
children
;
/* list of children */
...
@@ -107,11 +108,10 @@ struct clk {
...
@@ -107,11 +108,10 @@ struct clk {
/* Clock flags: SoC-specific flags start at BIT(16) */
/* Clock flags: SoC-specific flags start at BIT(16) */
#define ALWAYS_ENABLED BIT(1)
#define ALWAYS_ENABLED BIT(1)
#define CLK_PSC BIT(2)
#define CLK_PSC BIT(2)
#define PSC_DSP BIT(3)
/* PSC uses DSP domain, not ARM */
#define CLK_PLL BIT(3)
/* PLL-derived clock */
#define CLK_PLL BIT(4)
/* PLL-derived clock */
#define PRE_PLL BIT(4)
/* source is before PLL mult/div */
#define PRE_PLL BIT(5)
/* source is before PLL mult/div */
#define PSC_SWRSTDISABLE BIT(5)
/* Disable state is SwRstDisable */
#define PSC_SWRSTDISABLE BIT(6)
/* Disable state is SwRstDisable */
#define PSC_FORCE BIT(6)
/* Force module state transtition */
#define PSC_FORCE BIT(7)
/* Force module state transtition */
#define CLK(dev, con, ck) \
#define CLK(dev, con, ck) \
{ \
{ \
...
...
arch/arm/mach-davinci/dm644x.c
浏览文件 @
f68453e0
...
@@ -130,7 +130,7 @@ static struct clk dsp_clk = {
...
@@ -130,7 +130,7 @@ static struct clk dsp_clk = {
.
name
=
"dsp"
,
.
name
=
"dsp"
,
.
parent
=
&
pll1_sysclk1
,
.
parent
=
&
pll1_sysclk1
,
.
lpsc
=
DAVINCI_LPSC_GEM
,
.
lpsc
=
DAVINCI_LPSC_GEM
,
.
flags
=
PSC_DSP
,
.
domain
=
DAVINCI_GPSC_DSPDOMAIN
,
.
usecount
=
1
,
/* REVISIT how to disable? */
.
usecount
=
1
,
/* REVISIT how to disable? */
};
};
...
@@ -145,7 +145,7 @@ static struct clk vicp_clk = {
...
@@ -145,7 +145,7 @@ static struct clk vicp_clk = {
.
name
=
"vicp"
,
.
name
=
"vicp"
,
.
parent
=
&
pll1_sysclk2
,
.
parent
=
&
pll1_sysclk2
,
.
lpsc
=
DAVINCI_LPSC_IMCOP
,
.
lpsc
=
DAVINCI_LPSC_IMCOP
,
.
flags
=
PSC_DSP
,
.
domain
=
DAVINCI_GPSC_DSPDOMAIN
,
.
usecount
=
1
,
/* REVISIT how to disable? */
.
usecount
=
1
,
/* REVISIT how to disable? */
};
};
...
...
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