diff mbox series

[1/5] clk: qcom: dispcc-sm8650: Park RCG's clk source at XO during disable

Message ID 20240621-topic-sm8650-upstream-fix-dispcc-v1-1-7b297dd9fcc1@linaro.org (mailing list archive)
State Superseded
Headers show
Series clk: qcom: dispcc-sm8650: round of fixes | expand

Commit Message

Neil Armstrong June 21, 2024, 2:01 p.m. UTC 
The RCG's clk src has to be parked at XO while disabling as per the
HW recommendation, hence use clk_rcg2_shared_ops to achieve the same.

Fixes: 9e939f008338 ("clk: qcom: add the SM8650 Display Clock Controller driver")
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
---
 drivers/clk/qcom/dispcc-sm8650.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

Comments

Taniya Das June 21, 2024, 4:56 p.m. UTC | #1 
On 6/21/2024 7:31 PM, Neil Armstrong wrote:
> The RCG's clk src has to be parked at XO while disabling as per the
> HW recommendation, hence use clk_rcg2_shared_ops to achieve the same.
> 
> Fixes: 9e939f008338 ("clk: qcom: add the SM8650 Display Clock Controller driver")
> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
> ---
>   drivers/clk/qcom/dispcc-sm8650.c | 16 ++++++++--------
>   1 file changed, 8 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/clk/qcom/dispcc-sm8650.c b/drivers/clk/qcom/dispcc-sm8650.c
> index c9d2751f5cb8..31c82f791b44 100644
> --- a/drivers/clk/qcom/dispcc-sm8650.c
> +++ b/drivers/clk/qcom/dispcc-sm8650.c
> @@ -339,7 +339,7 @@ static struct clk_rcg2 disp_cc_mdss_dptx0_aux_clk_src = {
>   		.parent_data = disp_cc_parent_data_0,
>   		.num_parents = ARRAY_SIZE(disp_cc_parent_data_0),
>   		.flags = CLK_SET_RATE_PARENT,
> -		.ops = &clk_rcg2_ops,
> +		.ops = &clk_rcg2_shared_ops,
>   	},
>   };
>   
> @@ -457,7 +457,7 @@ static struct clk_rcg2 disp_cc_mdss_dptx2_aux_clk_src = {
>   		.parent_data = disp_cc_parent_data_0,
>   		.num_parents = ARRAY_SIZE(disp_cc_parent_data_0),
>   		.flags = CLK_SET_RATE_PARENT,
> -		.ops = &clk_rcg2_ops,
> +		.ops = &clk_rcg2_shared_ops,
>   	},
>   };
>   
> @@ -516,7 +516,7 @@ static struct clk_rcg2 disp_cc_mdss_dptx3_aux_clk_src = {
>   		.parent_data = disp_cc_parent_data_0,
>   		.num_parents = ARRAY_SIZE(disp_cc_parent_data_0),
>   		.flags = CLK_SET_RATE_PARENT,
> -		.ops = &clk_rcg2_ops,
> +		.ops = &clk_rcg2_shared_ops,
>   	},
>   };
>   
> @@ -560,7 +560,7 @@ static struct clk_rcg2 disp_cc_mdss_esc0_clk_src = {
>   		.parent_data = disp_cc_parent_data_5,
>   		.num_parents = ARRAY_SIZE(disp_cc_parent_data_5),
>   		.flags = CLK_SET_RATE_PARENT,
> -		.ops = &clk_rcg2_ops,
> +		.ops = &clk_rcg2_shared_ops,
>   	},
>   };
>   
> @@ -575,7 +575,7 @@ static struct clk_rcg2 disp_cc_mdss_esc1_clk_src = {
>   		.parent_data = disp_cc_parent_data_5,
>   		.num_parents = ARRAY_SIZE(disp_cc_parent_data_5),
>   		.flags = CLK_SET_RATE_PARENT,
> -		.ops = &clk_rcg2_ops,
> +		.ops = &clk_rcg2_shared_ops,
>   	},
>   };
>   
> @@ -647,7 +647,7 @@ static struct clk_rcg2 disp_cc_mdss_vsync_clk_src = {
>   		.parent_data = disp_cc_parent_data_0,
>   		.num_parents = ARRAY_SIZE(disp_cc_parent_data_0),
>   		.flags = CLK_SET_RATE_PARENT,
> -		.ops = &clk_rcg2_ops,
> +		.ops = &clk_rcg2_shared_ops,
>   	},
>   };
>   
> @@ -667,7 +667,7 @@ static struct clk_rcg2 disp_cc_sleep_clk_src = {
>   		.parent_data = disp_cc_parent_data_9,
>   		.num_parents = ARRAY_SIZE(disp_cc_parent_data_9),
>   		.flags = CLK_SET_RATE_PARENT,
> -		.ops = &clk_rcg2_ops,
> +		.ops = &clk_rcg2_shared_ops,
>   	},
Technically not required for this RCG as the source is sleep clock.
>   };
>   
> @@ -682,7 +682,7 @@ static struct clk_rcg2 disp_cc_xo_clk_src = {
>   		.parent_data = disp_cc_parent_data_0_ao,
>   		.num_parents = ARRAY_SIZE(disp_cc_parent_data_0_ao),
>   		.flags = CLK_SET_RATE_PARENT,
> -		.ops = &clk_rcg2_ops,
> +		.ops = &clk_rcg2_shared_ops,
>   	},
>   };
This RCG supports only XO frequency and can be ignored.
>   
>
Neil Armstrong June 24, 2024, 7:54 a.m. UTC | #2 
On 21/06/2024 18:56, Taniya Das wrote:
> 
> 
> On 6/21/2024 7:31 PM, Neil Armstrong wrote:
>> The RCG's clk src has to be parked at XO while disabling as per the
>> HW recommendation, hence use clk_rcg2_shared_ops to achieve the same.
>>
>> Fixes: 9e939f008338 ("clk: qcom: add the SM8650 Display Clock Controller driver")
>> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
>> ---
>>   drivers/clk/qcom/dispcc-sm8650.c | 16 ++++++++--------
>>   1 file changed, 8 insertions(+), 8 deletions(-)
>>
>> diff --git a/drivers/clk/qcom/dispcc-sm8650.c b/drivers/clk/qcom/dispcc-sm8650.c
>> index c9d2751f5cb8..31c82f791b44 100644
>> --- a/drivers/clk/qcom/dispcc-sm8650.c
>> +++ b/drivers/clk/qcom/dispcc-sm8650.c
>> @@ -339,7 +339,7 @@ static struct clk_rcg2 disp_cc_mdss_dptx0_aux_clk_src = {
>>           .parent_data = disp_cc_parent_data_0,
>>           .num_parents = ARRAY_SIZE(disp_cc_parent_data_0),
>>           .flags = CLK_SET_RATE_PARENT,
>> -        .ops = &clk_rcg2_ops,
>> +        .ops = &clk_rcg2_shared_ops,
>>       },
>>   };
>> @@ -457,7 +457,7 @@ static struct clk_rcg2 disp_cc_mdss_dptx2_aux_clk_src = {
>>           .parent_data = disp_cc_parent_data_0,
>>           .num_parents = ARRAY_SIZE(disp_cc_parent_data_0),
>>           .flags = CLK_SET_RATE_PARENT,
>> -        .ops = &clk_rcg2_ops,
>> +        .ops = &clk_rcg2_shared_ops,
>>       },
>>   };
>> @@ -516,7 +516,7 @@ static struct clk_rcg2 disp_cc_mdss_dptx3_aux_clk_src = {
>>           .parent_data = disp_cc_parent_data_0,
>>           .num_parents = ARRAY_SIZE(disp_cc_parent_data_0),
>>           .flags = CLK_SET_RATE_PARENT,
>> -        .ops = &clk_rcg2_ops,
>> +        .ops = &clk_rcg2_shared_ops,
>>       },
>>   };
>> @@ -560,7 +560,7 @@ static struct clk_rcg2 disp_cc_mdss_esc0_clk_src = {
>>           .parent_data = disp_cc_parent_data_5,
>>           .num_parents = ARRAY_SIZE(disp_cc_parent_data_5),
>>           .flags = CLK_SET_RATE_PARENT,
>> -        .ops = &clk_rcg2_ops,
>> +        .ops = &clk_rcg2_shared_ops,
>>       },
>>   };
>> @@ -575,7 +575,7 @@ static struct clk_rcg2 disp_cc_mdss_esc1_clk_src = {
>>           .parent_data = disp_cc_parent_data_5,
>>           .num_parents = ARRAY_SIZE(disp_cc_parent_data_5),
>>           .flags = CLK_SET_RATE_PARENT,
>> -        .ops = &clk_rcg2_ops,
>> +        .ops = &clk_rcg2_shared_ops,
>>       },
>>   };
>> @@ -647,7 +647,7 @@ static struct clk_rcg2 disp_cc_mdss_vsync_clk_src = {
>>           .parent_data = disp_cc_parent_data_0,
>>           .num_parents = ARRAY_SIZE(disp_cc_parent_data_0),
>>           .flags = CLK_SET_RATE_PARENT,
>> -        .ops = &clk_rcg2_ops,
>> +        .ops = &clk_rcg2_shared_ops,
>>       },
>>   };
>> @@ -667,7 +667,7 @@ static struct clk_rcg2 disp_cc_sleep_clk_src = {
>>           .parent_data = disp_cc_parent_data_9,
>>           .num_parents = ARRAY_SIZE(disp_cc_parent_data_9),
>>           .flags = CLK_SET_RATE_PARENT,
>> -        .ops = &clk_rcg2_ops,
>> +        .ops = &clk_rcg2_shared_ops,
>>       },
> Technically not required for this RCG as the source is sleep clock.

Ack

>>   };
>> @@ -682,7 +682,7 @@ static struct clk_rcg2 disp_cc_xo_clk_src = {
>>           .parent_data = disp_cc_parent_data_0_ao,
>>           .num_parents = ARRAY_SIZE(disp_cc_parent_data_0_ao),
>>           .flags = CLK_SET_RATE_PARENT,
>> -        .ops = &clk_rcg2_ops,
>> +        .ops = &clk_rcg2_shared_ops,
>>       },
>>   };
> This RCG supports only XO frequency and can be ignored.

Ack,

Thx,
Neil

>>
>
diff mbox series

Patch

diff --git a/drivers/clk/qcom/dispcc-sm8650.c b/drivers/clk/qcom/dispcc-sm8650.c
index c9d2751f5cb8..31c82f791b44 100644
--- a/drivers/clk/qcom/dispcc-sm8650.c
+++ b/drivers/clk/qcom/dispcc-sm8650.c
@@ -339,7 +339,7 @@  static struct clk_rcg2 disp_cc_mdss_dptx0_aux_clk_src = {
 		.parent_data = disp_cc_parent_data_0,
 		.num_parents = ARRAY_SIZE(disp_cc_parent_data_0),
 		.flags = CLK_SET_RATE_PARENT,
-		.ops = &clk_rcg2_ops,
+		.ops = &clk_rcg2_shared_ops,
 	},
 };
 
@@ -457,7 +457,7 @@  static struct clk_rcg2 disp_cc_mdss_dptx2_aux_clk_src = {
 		.parent_data = disp_cc_parent_data_0,
 		.num_parents = ARRAY_SIZE(disp_cc_parent_data_0),
 		.flags = CLK_SET_RATE_PARENT,
-		.ops = &clk_rcg2_ops,
+		.ops = &clk_rcg2_shared_ops,
 	},
 };
 
@@ -516,7 +516,7 @@  static struct clk_rcg2 disp_cc_mdss_dptx3_aux_clk_src = {
 		.parent_data = disp_cc_parent_data_0,
 		.num_parents = ARRAY_SIZE(disp_cc_parent_data_0),
 		.flags = CLK_SET_RATE_PARENT,
-		.ops = &clk_rcg2_ops,
+		.ops = &clk_rcg2_shared_ops,
 	},
 };
 
@@ -560,7 +560,7 @@  static struct clk_rcg2 disp_cc_mdss_esc0_clk_src = {
 		.parent_data = disp_cc_parent_data_5,
 		.num_parents = ARRAY_SIZE(disp_cc_parent_data_5),
 		.flags = CLK_SET_RATE_PARENT,
-		.ops = &clk_rcg2_ops,
+		.ops = &clk_rcg2_shared_ops,
 	},
 };
 
@@ -575,7 +575,7 @@  static struct clk_rcg2 disp_cc_mdss_esc1_clk_src = {
 		.parent_data = disp_cc_parent_data_5,
 		.num_parents = ARRAY_SIZE(disp_cc_parent_data_5),
 		.flags = CLK_SET_RATE_PARENT,
-		.ops = &clk_rcg2_ops,
+		.ops = &clk_rcg2_shared_ops,
 	},
 };
 
@@ -647,7 +647,7 @@  static struct clk_rcg2 disp_cc_mdss_vsync_clk_src = {
 		.parent_data = disp_cc_parent_data_0,
 		.num_parents = ARRAY_SIZE(disp_cc_parent_data_0),
 		.flags = CLK_SET_RATE_PARENT,
-		.ops = &clk_rcg2_ops,
+		.ops = &clk_rcg2_shared_ops,
 	},
 };
 
@@ -667,7 +667,7 @@  static struct clk_rcg2 disp_cc_sleep_clk_src = {
 		.parent_data = disp_cc_parent_data_9,
 		.num_parents = ARRAY_SIZE(disp_cc_parent_data_9),
 		.flags = CLK_SET_RATE_PARENT,
-		.ops = &clk_rcg2_ops,
+		.ops = &clk_rcg2_shared_ops,
 	},
 };
 
@@ -682,7 +682,7 @@  static struct clk_rcg2 disp_cc_xo_clk_src = {
 		.parent_data = disp_cc_parent_data_0_ao,
 		.num_parents = ARRAY_SIZE(disp_cc_parent_data_0_ao),
 		.flags = CLK_SET_RATE_PARENT,
-		.ops = &clk_rcg2_ops,
+		.ops = &clk_rcg2_shared_ops,
 	},
 };