diff mbox

ARM: S3C64XX: Statically define parent clock of the "camera" clock

Message ID 1352449929-20168-1-git-send-email-sylvester.nawrocki@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Sylwester Nawrocki Nov. 9, 2012, 8:32 a.m. UTC
The "camera" clock defined in arch/arm/mach-s3c64xx/clock.c has null
clock source mux control register as it can have only one parent
clock. In such cases there is a need to configure the parent clock
statically, otherwise s3c_set_clksrc() bails out with an error message
"no parent clock specified" leaving the parent clock not configured.
Define statically the parent clock so it is possible to get or set
rate of the "camera" clock.
While at it remove the unneded null reg_src definition.

Reported-by: In-Bae Jeong <kukyakya@gmail.com>
Signed-off-by: Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
---
 arch/arm/mach-s3c64xx/clock.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

Comments

Andrey Gusakov Nov. 9, 2012, 9:31 a.m. UTC | #1
Hi.

On Fri, Nov 9, 2012 at 12:32 PM, Sylwester Nawrocki
<sylvester.nawrocki@gmail.com> wrote:
> The "camera" clock defined in arch/arm/mach-s3c64xx/clock.c has null
> clock source mux control register as it can have only one parent
> clock. In such cases there is a need to configure the parent clock
> statically, otherwise s3c_set_clksrc() bails out with an error message
> "no parent clock specified" leaving the parent clock not configured.
> Define statically the parent clock so it is possible to get or set
> rate of the "camera" clock.
> While at it remove the unneded null reg_src definition.
>
> Reported-by: In-Bae Jeong <kukyakya@gmail.com>
> Signed-off-by: Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
> ---
>  arch/arm/mach-s3c64xx/clock.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/arch/arm/mach-s3c64xx/clock.c b/arch/arm/mach-s3c64xx/clock.c
> index 28041e8..2e6d7f9 100644
> --- a/arch/arm/mach-s3c64xx/clock.c
> +++ b/arch/arm/mach-s3c64xx/clock.c
> @@ -744,9 +744,9 @@ static struct clksrc_clk clksrcs[] = {
>                         .name           = "camera",
>                         .ctrlbit        = S3C_CLKCON_SCLK_CAM,
>                         .enable         = s3c64xx_sclk_ctrl,
> +                       .parent         = &clk_h2,
>                 },
>                 .reg_div        = { .reg = S3C_CLK_DIV0, .shift = 20, .size = 4  },
> -               .reg_src        = { .reg = NULL, .shift = 0, .size = 0  },
>                 .sources        = &clkset_camif,
Just figure out that .sources can be removed to. And seems
"clkset_camif" and "clkset_camif_list" can be removed as unused.

I'll try to test it tiday.
Sylwester Nawrocki Nov. 9, 2012, 10:05 a.m. UTC | #2
Hi,

On 11/09/2012 10:31 AM, Andrey Gusakov wrote:
> On Fri, Nov 9, 2012 at 12:32 PM, Sylwester Nawrocki
> <sylvester.nawrocki@gmail.com>  wrote:
>> The "camera" clock defined in arch/arm/mach-s3c64xx/clock.c has null
>> clock source mux control register as it can have only one parent
>> clock. In such cases there is a need to configure the parent clock
>> statically, otherwise s3c_set_clksrc() bails out with an error message
>> "no parent clock specified" leaving the parent clock not configured.
>> Define statically the parent clock so it is possible to get or set
>> rate of the "camera" clock.
>> While at it remove the unneded null reg_src definition.
>>
>> Reported-by: In-Bae Jeong<kukyakya@gmail.com>
>> Signed-off-by: Sylwester Nawrocki<sylvester.nawrocki@gmail.com>
>> ---
>>   arch/arm/mach-s3c64xx/clock.c |    2 +-
>>   1 files changed, 1 insertions(+), 1 deletions(-)
>>
>> diff --git a/arch/arm/mach-s3c64xx/clock.c b/arch/arm/mach-s3c64xx/clock.c
>> index 28041e8..2e6d7f9 100644
>> --- a/arch/arm/mach-s3c64xx/clock.c
>> +++ b/arch/arm/mach-s3c64xx/clock.c
>> @@ -744,9 +744,9 @@ static struct clksrc_clk clksrcs[] = {
>>                          .name           = "camera",
>>                          .ctrlbit        = S3C_CLKCON_SCLK_CAM,
>>                          .enable         = s3c64xx_sclk_ctrl,
>> +                       .parent         =&clk_h2,
>>                  },
>>                  .reg_div        = { .reg = S3C_CLK_DIV0, .shift = 20, .size = 4  },
>> -               .reg_src        = { .reg = NULL, .shift = 0, .size = 0  },
>>                  .sources        =&clkset_camif,
> Just figure out that .sources can be removed to. And seems
> "clkset_camif" and "clkset_camif_list" can be removed as unused.

OK, you're right. I think it could be done as a separate patch,
depending on this one to avoid conflicts.

> I'll try to test it tiday.

Thanks.
Sylwester Nawrocki Nov. 9, 2012, 10:18 a.m. UTC | #3
On 11/09/2012 11:05 AM, Sylwester Nawrocki wrote:
> Hi,
>
> On 11/09/2012 10:31 AM, Andrey Gusakov wrote:
>> On Fri, Nov 9, 2012 at 12:32 PM, Sylwester Nawrocki
>> <sylvester.nawrocki@gmail.com> wrote:
>>> The "camera" clock defined in arch/arm/mach-s3c64xx/clock.c has null
>>> clock source mux control register as it can have only one parent
>>> clock. In such cases there is a need to configure the parent clock
>>> statically, otherwise s3c_set_clksrc() bails out with an error message
>>> "no parent clock specified" leaving the parent clock not configured.
>>> Define statically the parent clock so it is possible to get or set
>>> rate of the "camera" clock.
>>> While at it remove the unneded null reg_src definition.
>>>
>>> Reported-by: In-Bae Jeong<kukyakya@gmail.com>
>>> Signed-off-by: Sylwester Nawrocki<sylvester.nawrocki@gmail.com>
>>> ---
>>> arch/arm/mach-s3c64xx/clock.c | 2 +-
>>> 1 files changed, 1 insertions(+), 1 deletions(-)
>>>
>>> diff --git a/arch/arm/mach-s3c64xx/clock.c
>>> b/arch/arm/mach-s3c64xx/clock.c
>>> index 28041e8..2e6d7f9 100644
>>> --- a/arch/arm/mach-s3c64xx/clock.c
>>> +++ b/arch/arm/mach-s3c64xx/clock.c
>>> @@ -744,9 +744,9 @@ static struct clksrc_clk clksrcs[] = {
>>> .name = "camera",
>>> .ctrlbit = S3C_CLKCON_SCLK_CAM,
>>> .enable = s3c64xx_sclk_ctrl,
>>> + .parent =&clk_h2,
>>> },
>>> .reg_div = { .reg = S3C_CLK_DIV0, .shift = 20, .size = 4 },
>>> - .reg_src = { .reg = NULL, .shift = 0, .size = 0 },
>>> .sources =&clkset_camif,
>> Just figure out that .sources can be removed to. And seems
>> "clkset_camif" and "clkset_camif_list" can be removed as unused.
>
> OK, you're right. I think it could be done as a separate patch,
> depending on this one to avoid conflicts.

Or feel free to make a new patch, ignoring this one.

--
Regards,
Sylwester
diff mbox

Patch

diff --git a/arch/arm/mach-s3c64xx/clock.c b/arch/arm/mach-s3c64xx/clock.c
index 28041e8..2e6d7f9 100644
--- a/arch/arm/mach-s3c64xx/clock.c
+++ b/arch/arm/mach-s3c64xx/clock.c
@@ -744,9 +744,9 @@  static struct clksrc_clk clksrcs[] = {
 			.name		= "camera",
 			.ctrlbit        = S3C_CLKCON_SCLK_CAM,
 			.enable		= s3c64xx_sclk_ctrl,
+			.parent		= &clk_h2,
 		},
 		.reg_div	= { .reg = S3C_CLK_DIV0, .shift = 20, .size = 4  },
-		.reg_src	= { .reg = NULL, .shift = 0, .size = 0  },
 		.sources	= &clkset_camif,
 	},
 };