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drm/fsl-dcu: fix opencoded use of drm_panel_*

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Use drm_panel_get_modes() to access modes.
This has a nice side effect to simplify the code.

drm_panel_get_modes() may return a negative value if
for example panel is NULL. This is a small change
compared to before, but really what we want.

v2:
- Add more info to changelog (Stefan)

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Stefan Agner <stefan@agner.ch>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Cc: Alison Wang <alison.wang@nxp.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190804201637.1240-6-sam@ravnborg.org
This commit is contained in:
Sam Ravnborg
2019-08-04 22:16:26 +02:00
parent 90fbc51056
commit 24bc3e9ce6
1 changed files with 1 additions and 9 deletions
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10
drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c
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@@ -65,17 +65,9 @@ static const struct drm_connector_funcs fsl_dcu_drm_connector_funcs = {
static int fsl_dcu_drm_connector_get_modes(struct drm_connector *connector) static int fsl_dcu_drm_connector_get_modes(struct drm_connector *connector)
{ {
struct fsl_dcu_drm_connector *fsl_connector; struct fsl_dcu_drm_connector *fsl_connector;
int (*get_modes)(struct drm_panel *panel);
int num_modes = 0;
fsl_connector = to_fsl_dcu_connector(connector); fsl_connector = to_fsl_dcu_connector(connector);
if (fsl_connector->panel && fsl_connector->panel->funcs && return drm_panel_get_modes(fsl_connector->panel);
fsl_connector->panel->funcs->get_modes) {
get_modes = fsl_connector->panel->funcs->get_modes;
num_modes = get_modes(fsl_connector->panel);
}
return num_modes;
} }
static int fsl_dcu_drm_connector_mode_valid(struct drm_connector *connector, static int fsl_dcu_drm_connector_mode_valid(struct drm_connector *connector,