Re: [PATCH 1/4] drm: bridge: adv7511: Split EDID read to a separate function

2020-04-12 Thread Sam Ravnborg
Hi Laurent.

On Thu, Apr 09, 2020 at 03:46:07AM +0300, Laurent Pinchart wrote:
> To prepare for the implementation of the DRM bridge connector
> operations, move EDID read out of adv7511_get_modes() to a separate
> function.
> 
> Signed-off-by: Laurent Pinchart 

The code do not check if drm_do_get_edid() return NULL.
But all functions called with the edid seems to handle a NULL edid well.
So thats OK.

Acked-by: Sam Ravnborg 

> ---
>  drivers/gpu/drm/bridge/adv7511/adv7511_drv.c | 23 ++--
>  1 file changed, 16 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c 
> b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
> index 87b58c1acff4..58d02e92b6b9 100644
> --- a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
> +++ b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
> @@ -589,11 +589,10 @@ static int adv7511_get_edid_block(void *data, u8 *buf, 
> unsigned int block,
>   * ADV75xx helpers
>   */
>  
> -static int adv7511_get_modes(struct adv7511 *adv7511,
> -  struct drm_connector *connector)
> +static struct edid *adv7511_get_edid(struct adv7511 *adv7511,
> +  struct drm_connector *connector)
>  {
>   struct edid *edid;
> - unsigned int count;
>  
>   /* Reading the EDID only works if the device is powered */
>   if (!adv7511->powered) {
> @@ -612,15 +611,25 @@ static int adv7511_get_modes(struct adv7511 *adv7511,
>   if (!adv7511->powered)
>   __adv7511_power_off(adv7511);
>  
> -
> - drm_connector_update_edid_property(connector, edid);
> - count = drm_add_edid_modes(connector, edid);
> -
>   adv7511_set_config_csc(adv7511, connector, adv7511->rgb,
>  drm_detect_hdmi_monitor(edid));
>  
>   cec_s_phys_addr_from_edid(adv7511->cec_adap, edid);
>  
> + return edid;
> +}
> +
> +static int adv7511_get_modes(struct adv7511 *adv7511,
> +  struct drm_connector *connector)
> +{
> + struct edid *edid;
> + unsigned int count;
> +
> + edid = adv7511_get_edid(adv7511, connector);
> +
> + drm_connector_update_edid_property(connector, edid);
> + count = drm_add_edid_modes(connector, edid);
> +
>   kfree(edid);
>  
>   return count;
> -- 
> Regards,
> 
> Laurent Pinchart
> 
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[PATCH 1/4] drm: bridge: adv7511: Split EDID read to a separate function

2020-04-08 Thread Laurent Pinchart
To prepare for the implementation of the DRM bridge connector
operations, move EDID read out of adv7511_get_modes() to a separate
function.

Signed-off-by: Laurent Pinchart 
---
 drivers/gpu/drm/bridge/adv7511/adv7511_drv.c | 23 ++--
 1 file changed, 16 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c 
b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
index 87b58c1acff4..58d02e92b6b9 100644
--- a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
+++ b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
@@ -589,11 +589,10 @@ static int adv7511_get_edid_block(void *data, u8 *buf, 
unsigned int block,
  * ADV75xx helpers
  */
 
-static int adv7511_get_modes(struct adv7511 *adv7511,
-struct drm_connector *connector)
+static struct edid *adv7511_get_edid(struct adv7511 *adv7511,
+struct drm_connector *connector)
 {
struct edid *edid;
-   unsigned int count;
 
/* Reading the EDID only works if the device is powered */
if (!adv7511->powered) {
@@ -612,15 +611,25 @@ static int adv7511_get_modes(struct adv7511 *adv7511,
if (!adv7511->powered)
__adv7511_power_off(adv7511);
 
-
-   drm_connector_update_edid_property(connector, edid);
-   count = drm_add_edid_modes(connector, edid);
-
adv7511_set_config_csc(adv7511, connector, adv7511->rgb,
   drm_detect_hdmi_monitor(edid));
 
cec_s_phys_addr_from_edid(adv7511->cec_adap, edid);
 
+   return edid;
+}
+
+static int adv7511_get_modes(struct adv7511 *adv7511,
+struct drm_connector *connector)
+{
+   struct edid *edid;
+   unsigned int count;
+
+   edid = adv7511_get_edid(adv7511, connector);
+
+   drm_connector_update_edid_property(connector, edid);
+   count = drm_add_edid_modes(connector, edid);
+
kfree(edid);
 
return count;
-- 
Regards,

Laurent Pinchart

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