Re: [PATCH 1/2] drm/amd/display: dc_link: code clean up on enable_link_dp function

2020-02-27 Thread Rodrigo Siqueira
Hi,

First of all, thank you for your patch.

I just have one tiny comment inline.

On 02/26, Melissa Wen wrote:
> Coding style clean up on enable_link_dp function as suggested by
> checkpatch.pl:
> 
> CHECK: Lines should not end with a '('
> WARNING: line over 80 characters
> WARNING: suspect code indent for conditional statements (8, 24)
> CHECK: braces {} should be used on all arms of this statement
> ERROR: else should follow close brace '}'
> CHECK: Comparison to NULL could be written
>"link->preferred_training_settings.fec_enable"
> 
> Signed-off-by: Melissa Wen 
> ---
>  drivers/gpu/drm/amd/display/dc/core/dc_link.c | 32 +--
>  1 file changed, 16 insertions(+), 16 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c 
> b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
> index a09119c10d7c..0f28b5694144 100644
> --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
> +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
> @@ -1480,9 +1480,8 @@ static void enable_stream_features(struct pipe_ctx 
> *pipe_ctx)
>   }
>  }
>  
> -static enum dc_status enable_link_dp(
> - struct dc_state *state,
> - struct pipe_ctx *pipe_ctx)
> +static enum dc_status enable_link_dp(struct dc_state *state,
> +  struct pipe_ctx *pipe_ctx)
>  {
>   struct dc_stream_state *stream = pipe_ctx->stream;
>   enum dc_status status;
> @@ -1512,27 +1511,28 @@ static enum dc_status enable_link_dp(
>  
>   pipe_ctx->stream_res.pix_clk_params.requested_sym_clk =
>   link_settings.link_rate * LINK_RATE_REF_FREQ_IN_KHZ;
> - if (state->clk_mgr && !apply_seamless_boot_optimization)
> - state->clk_mgr->funcs->update_clocks(state->clk_mgr, state, 
> false);
> + if (state->clk_mgr && !apply_seamless_boot_optimization) {
> + state->clk_mgr->funcs->update_clocks(state->clk_mgr,
> +  state, false);
> + }

This `if` condition only has one action, which means that you don't need
to add `{}` in the above statement. See:

https://www.kernel.org/doc/html/v4.10/process/coding-style.html#placing-braces-and-spaces

Thanks

>  
>   skip_video_pattern = true;
>  
>   if (link_settings.link_rate == LINK_RATE_LOW)
> - skip_video_pattern = false;
> -
> - if (perform_link_training_with_retries(
> - _settings,
> - skip_video_pattern,
> - LINK_TRAINING_ATTEMPTS,
> - pipe_ctx,
> - pipe_ctx->stream->signal)) {
> + skip_video_pattern = false;
> +
> + if (perform_link_training_with_retries(_settings,
> +skip_video_pattern,
> +LINK_TRAINING_ATTEMPTS,
> +pipe_ctx,
> +pipe_ctx->stream->signal)) {
>   link->cur_link_settings = link_settings;
>   status = DC_OK;
> - }
> - else
> + } else {
>   status = DC_FAIL_DP_LINK_TRAINING;
> + }
>  
> - if (link->preferred_training_settings.fec_enable != NULL)
> + if (link->preferred_training_settings.fec_enable)
>   fec_enable = *link->preferred_training_settings.fec_enable;
>   else
>   fec_enable = true;
> -- 
> 2.25.0
> 
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-- 
Rodrigo Siqueira
https://siqueira.tech


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[PATCH 1/2] drm/amd/display: dc_link: code clean up on enable_link_dp function

2020-02-26 Thread Melissa Wen
Coding style clean up on enable_link_dp function as suggested by
checkpatch.pl:

CHECK: Lines should not end with a '('
WARNING: line over 80 characters
WARNING: suspect code indent for conditional statements (8, 24)
CHECK: braces {} should be used on all arms of this statement
ERROR: else should follow close brace '}'
CHECK: Comparison to NULL could be written
   "link->preferred_training_settings.fec_enable"

Signed-off-by: Melissa Wen 
---
 drivers/gpu/drm/amd/display/dc/core/dc_link.c | 32 +--
 1 file changed, 16 insertions(+), 16 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c 
b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
index a09119c10d7c..0f28b5694144 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
@@ -1480,9 +1480,8 @@ static void enable_stream_features(struct pipe_ctx 
*pipe_ctx)
}
 }
 
-static enum dc_status enable_link_dp(
-   struct dc_state *state,
-   struct pipe_ctx *pipe_ctx)
+static enum dc_status enable_link_dp(struct dc_state *state,
+struct pipe_ctx *pipe_ctx)
 {
struct dc_stream_state *stream = pipe_ctx->stream;
enum dc_status status;
@@ -1512,27 +1511,28 @@ static enum dc_status enable_link_dp(
 
pipe_ctx->stream_res.pix_clk_params.requested_sym_clk =
link_settings.link_rate * LINK_RATE_REF_FREQ_IN_KHZ;
-   if (state->clk_mgr && !apply_seamless_boot_optimization)
-   state->clk_mgr->funcs->update_clocks(state->clk_mgr, state, 
false);
+   if (state->clk_mgr && !apply_seamless_boot_optimization) {
+   state->clk_mgr->funcs->update_clocks(state->clk_mgr,
+state, false);
+   }
 
skip_video_pattern = true;
 
if (link_settings.link_rate == LINK_RATE_LOW)
-   skip_video_pattern = false;
-
-   if (perform_link_training_with_retries(
-   _settings,
-   skip_video_pattern,
-   LINK_TRAINING_ATTEMPTS,
-   pipe_ctx,
-   pipe_ctx->stream->signal)) {
+   skip_video_pattern = false;
+
+   if (perform_link_training_with_retries(_settings,
+  skip_video_pattern,
+  LINK_TRAINING_ATTEMPTS,
+  pipe_ctx,
+  pipe_ctx->stream->signal)) {
link->cur_link_settings = link_settings;
status = DC_OK;
-   }
-   else
+   } else {
status = DC_FAIL_DP_LINK_TRAINING;
+   }
 
-   if (link->preferred_training_settings.fec_enable != NULL)
+   if (link->preferred_training_settings.fec_enable)
fec_enable = *link->preferred_training_settings.fec_enable;
else
fec_enable = true;
-- 
2.25.0

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