2018-05-07 14:45:01

by David Lechner

Subject: [PATCH v2 1/2] clk: davinci: pll-dm355: fix SYSCLKn parent names

This fixes the parent clock names of the SYSCLKn clocks for the DM355
SoC in the TI DaVinici PLL clock driver.

It appears that this name just didn't get updated to the correct name
like the other SoCs during the driver's development.

Reported-by: Sekhar Nori <[email protected]>
Signed-off-by: David Lechner <[email protected]>
---

v2 changes:
- add second patch to fix additional problems with DM355

drivers/clk/davinci/pll-dm355.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/clk/davinci/pll-dm355.c b/drivers/clk/davinci/pll-dm355.c
index 5345f8286c50..1f746d2fc894 100644
--- a/drivers/clk/davinci/pll-dm355.c
+++ b/drivers/clk/davinci/pll-dm355.c
@@ -22,10 +22,10 @@ static const struct davinci_pll_clk_info dm355_pll1_info = {
PLL_POSTDIV_ALWAYS_ENABLED | PLL_POSTDIV_FIXED_DIV,
};

-SYSCLK(1, pll1_sysclk1, pll1, 5, SYSCLK_FIXED_DIV | SYSCLK_ALWAYS_ENABLED);
-SYSCLK(2, pll1_sysclk2, pll1, 5, SYSCLK_FIXED_DIV | SYSCLK_ALWAYS_ENABLED);
-SYSCLK(3, pll1_sysclk3, pll1, 5, SYSCLK_ALWAYS_ENABLED);
-SYSCLK(4, pll1_sysclk4, pll1, 5, SYSCLK_ALWAYS_ENABLED);
+SYSCLK(1, pll1_sysclk1, pll1_pllen, 5, SYSCLK_FIXED_DIV | SYSCLK_ALWAYS_ENABLED);
+SYSCLK(2, pll1_sysclk2, pll1_pllen, 5, SYSCLK_FIXED_DIV | SYSCLK_ALWAYS_ENABLED);
+SYSCLK(3, pll1_sysclk3, pll1_pllen, 5, SYSCLK_ALWAYS_ENABLED);
+SYSCLK(4, pll1_sysclk4, pll1_pllen, 5, SYSCLK_ALWAYS_ENABLED);

int dm355_pll1_init(struct device *dev, void __iomem *base)
{
@@ -62,8 +62,8 @@ static const struct davinci_pll_clk_info dm355_pll2_info = {
PLL_POSTDIV_ALWAYS_ENABLED | PLL_POSTDIV_FIXED_DIV,
};

-SYSCLK(1, pll2_sysclk1, pll2, 5, SYSCLK_FIXED_DIV);
-SYSCLK(2, pll2_sysclk2, pll2, 5, SYSCLK_FIXED_DIV | SYSCLK_ALWAYS_ENABLED);
+SYSCLK(1, pll2_sysclk1, pll2_pllen, 5, SYSCLK_FIXED_DIV);
+SYSCLK(2, pll2_sysclk2, pll2_pllen, 5, SYSCLK_FIXED_DIV | SYSCLK_ALWAYS_ENABLED);

int dm355_pll2_init(struct device *dev, void __iomem *base)
{
--
2.17.0

2018-05-07 14:46:16

by David Lechner

Subject: [PATCH v2 2/2] clk: davinci: pll-dm355: drop pll2_sysclk2

This removes pll2_sysclk2 from the TI DM355 clock driver. This SoC
doesn't have such a clock. Also, SYSCLK_ALWAYS_ENABLED is transferred
to pll2_sysclk1 since it drives the DDR and doesn't have another
mechanism to keep it on.

Reported-by: Sekhar Nori <[email protected]>
Signed-off-by: David Lechner <[email protected]>
---
drivers/clk/davinci/pll-dm355.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/clk/davinci/pll-dm355.c b/drivers/clk/davinci/pll-dm355.c
index 1f746d2fc894..93f4a53d6b44 100644
--- a/drivers/clk/davinci/pll-dm355.c
+++ b/drivers/clk/davinci/pll-dm355.c
@@ -62,8 +62,7 @@ static const struct davinci_pll_clk_info dm355_pll2_info = {
PLL_POSTDIV_ALWAYS_ENABLED | PLL_POSTDIV_FIXED_DIV,
};

-SYSCLK(1, pll2_sysclk1, pll2_pllen, 5, SYSCLK_FIXED_DIV);
-SYSCLK(2, pll2_sysclk2, pll2_pllen, 5, SYSCLK_FIXED_DIV | SYSCLK_ALWAYS_ENABLED);
+SYSCLK(1, pll2_sysclk1, pll2_pllen, 5, SYSCLK_FIXED_DIV | SYSCLK_ALWAYS_ENABLED);

int dm355_pll2_init(struct device *dev, void __iomem *base)
{
@@ -71,8 +70,6 @@ int dm355_pll2_init(struct device *dev, void __iomem *base)

davinci_pll_sysclk_register(dev, &pll2_sysclk1, base);

- davinci_pll_sysclk_register(dev, &pll2_sysclk2, base);
-
davinci_pll_sysclkbp_clk_register(dev, "pll2_sysclkbp", base);

return 0;
--
2.17.0

2018-05-07 15:23:29

by Sekhar Nori

Subject: Re: [PATCH v2 1/2] clk: davinci: pll-dm355: fix SYSCLKn parent names

On Monday 07 May 2018 08:13 PM, David Lechner wrote:
> This fixes the parent clock names of the SYSCLKn clocks for the DM355
> SoC in the TI DaVinici PLL clock driver.
>
> It appears that this name just didn't get updated to the correct name
> like the other SoCs during the driver's development.
>
> Reported-by: Sekhar Nori <[email protected]>
> Signed-off-by: David Lechner <[email protected]>
> ---
>
> v2 changes:
> - add second patch to fix additional problems with DM355
>
> drivers/clk/davinci/pll-dm355.c | 12 ++++++------
> 1 file changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/clk/davinci/pll-dm355.c b/drivers/clk/davinci/pll-dm355.c
> index 5345f8286c50..1f746d2fc894 100644
> --- a/drivers/clk/davinci/pll-dm355.c
> +++ b/drivers/clk/davinci/pll-dm355.c
> @@ -22,10 +22,10 @@ static const struct davinci_pll_clk_info dm355_pll1_info = {
> PLL_POSTDIV_ALWAYS_ENABLED | PLL_POSTDIV_FIXED_DIV,
> };
>
> -SYSCLK(1, pll1_sysclk1, pll1, 5, SYSCLK_FIXED_DIV | SYSCLK_ALWAYS_ENABLED);
> -SYSCLK(2, pll1_sysclk2, pll1, 5, SYSCLK_FIXED_DIV | SYSCLK_ALWAYS_ENABLED);
> -SYSCLK(3, pll1_sysclk3, pll1, 5, SYSCLK_ALWAYS_ENABLED);
> -SYSCLK(4, pll1_sysclk4, pll1, 5, SYSCLK_ALWAYS_ENABLED);
> +SYSCLK(1, pll1_sysclk1, pll1_pllen, 5, SYSCLK_FIXED_DIV | SYSCLK_ALWAYS_ENABLED);
> +SYSCLK(2, pll1_sysclk2, pll1_pllen, 5, SYSCLK_FIXED_DIV | SYSCLK_ALWAYS_ENABLED);
> +SYSCLK(3, pll1_sysclk3, pll1_pllen, 5, SYSCLK_ALWAYS_ENABLED);
> +SYSCLK(4, pll1_sysclk4, pll1_pllen, 5, SYSCLK_ALWAYS_ENABLED);
>
> int dm355_pll1_init(struct device *dev, void __iomem *base)
> {
> @@ -62,8 +62,8 @@ static const struct davinci_pll_clk_info dm355_pll2_info = {
> PLL_POSTDIV_ALWAYS_ENABLED | PLL_POSTDIV_FIXED_DIV,
> };
>
> -SYSCLK(1, pll2_sysclk1, pll2, 5, SYSCLK_FIXED_DIV);
> -SYSCLK(2, pll2_sysclk2, pll2, 5, SYSCLK_FIXED_DIV | SYSCLK_ALWAYS_ENABLED);
> +SYSCLK(1, pll2_sysclk1, pll2_pllen, 5, SYSCLK_FIXED_DIV);
> +SYSCLK(2, pll2_sysclk2, pll2_pllen, 5, SYSCLK_FIXED_DIV | SYSCLK_ALWAYS_ENABLED);

Good find with PLL2 SYSCLK2. Can you reverse the patch order so we are
not fixing up a non-existent clock?

Thanks,
Sekhar

2018-05-07 18:33:12

by David Lechner

Subject: Re: [PATCH v2 1/2] clk: davinci: pll-dm355: fix SYSCLKn parent names

On 5/7/18 10:21 AM, Sekhar Nori wrote:
> On Monday 07 May 2018 08:13 PM, David Lechner wrote:
>> This fixes the parent clock names of the SYSCLKn clocks for the DM355
>> SoC in the TI DaVinici PLL clock driver.
>>
>> It appears that this name just didn't get updated to the correct name
>> like the other SoCs during the driver's development.
>>
>> Reported-by: Sekhar Nori <[email protected]>
>> Signed-off-by: David Lechner <[email protected]>
>> ---
>>
>> v2 changes:
>> - add second patch to fix additional problems with DM355
>>
>> drivers/clk/davinci/pll-dm355.c | 12 ++++++------
>> 1 file changed, 6 insertions(+), 6 deletions(-)
>>
>> diff --git a/drivers/clk/davinci/pll-dm355.c b/drivers/clk/davinci/pll-dm355.c
>> index 5345f8286c50..1f746d2fc894 100644
>> --- a/drivers/clk/davinci/pll-dm355.c
>> +++ b/drivers/clk/davinci/pll-dm355.c
>> @@ -22,10 +22,10 @@ static const struct davinci_pll_clk_info dm355_pll1_info = {
>> PLL_POSTDIV_ALWAYS_ENABLED | PLL_POSTDIV_FIXED_DIV,
>> };
>>
>> -SYSCLK(1, pll1_sysclk1, pll1, 5, SYSCLK_FIXED_DIV | SYSCLK_ALWAYS_ENABLED);
>> -SYSCLK(2, pll1_sysclk2, pll1, 5, SYSCLK_FIXED_DIV | SYSCLK_ALWAYS_ENABLED);
>> -SYSCLK(3, pll1_sysclk3, pll1, 5, SYSCLK_ALWAYS_ENABLED);
>> -SYSCLK(4, pll1_sysclk4, pll1, 5, SYSCLK_ALWAYS_ENABLED);
>> +SYSCLK(1, pll1_sysclk1, pll1_pllen, 5, SYSCLK_FIXED_DIV | SYSCLK_ALWAYS_ENABLED);
>> +SYSCLK(2, pll1_sysclk2, pll1_pllen, 5, SYSCLK_FIXED_DIV | SYSCLK_ALWAYS_ENABLED);
>> +SYSCLK(3, pll1_sysclk3, pll1_pllen, 5, SYSCLK_ALWAYS_ENABLED);
>> +SYSCLK(4, pll1_sysclk4, pll1_pllen, 5, SYSCLK_ALWAYS_ENABLED);
>>
>> int dm355_pll1_init(struct device *dev, void __iomem *base)
>> {
>> @@ -62,8 +62,8 @@ static const struct davinci_pll_clk_info dm355_pll2_info = {
>> PLL_POSTDIV_ALWAYS_ENABLED | PLL_POSTDIV_FIXED_DIV,
>> };
>>
>> -SYSCLK(1, pll2_sysclk1, pll2, 5, SYSCLK_FIXED_DIV);
>> -SYSCLK(2, pll2_sysclk2, pll2, 5, SYSCLK_FIXED_DIV | SYSCLK_ALWAYS_ENABLED);
>> +SYSCLK(1, pll2_sysclk1, pll2_pllen, 5, SYSCLK_FIXED_DIV);
>> +SYSCLK(2, pll2_sysclk2, pll2_pllen, 5, SYSCLK_FIXED_DIV | SYSCLK_ALWAYS_ENABLED);
>
> Good find with PLL2 SYSCLK2. Can you reverse the patch order so we are
> not fixing up a non-existent clock?
>

Sure. But it will take me a couple days to get back to it.