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drm/exynos: fix display power call issue. 

Changelog v3:
make exynos_drm_display_power function use exynos_drm_best_encoder
function instead of connector->encoder to get a valid encoder.
connector->encoder could be NULL because with DRM_IOCTL_MODE_RMFB
request, connector->encoder is NULL so fix this issue.

Changelog v2:
remove static prefix so that exynos_drm_best_encoder function
could be called by other modules.

Changelog v1:
this patch fixes the issue that display power callback isn't called.
with DRM_IOCTL_MODE_RMFB request, encoder->connector becomes NULL
so display_ops->power_on() wouldn't be called so this patch makes
exynos_drm_best_encoder function to be used to get a valid encoder
of each connector.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
hifive-unleashed-5.1
Inki Dae 2012-09-24 20:04:24 +09:00
parent e2e1338900
commit 58f6aad7d9
3 changed files with 5 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/gpu/drm/exynos/exynos_drm_connector.c
View File

@ -199,8 +199,7 @@ static int exynos_drm_connector_mode_valid(struct drm_connector *connector,
return ret;
}
static struct drm_encoder *exynos_drm_best_encoder(
struct drm_connector *connector)
struct drm_encoder *exynos_drm_best_encoder(struct drm_connector *connector)
{
struct drm_device *dev = connector->dev;
struct exynos_drm_connector *exynos_connector =
@ -231,7 +230,7 @@ static struct drm_connector_helper_funcs exynos_connector_helper_funcs = {
void exynos_drm_display_power(struct drm_connector *connector, int mode)
{
struct drm_encoder *encoder = connector->encoder;
struct drm_encoder *encoder = exynos_drm_best_encoder(connector);
struct exynos_drm_connector *exynos_connector;
struct exynos_drm_manager *manager = exynos_drm_get_manager(encoder);
struct exynos_drm_display_ops *display_ops = manager->display_ops;

2
drivers/gpu/drm/exynos/exynos_drm_connector.h
View File

@ -31,6 +31,8 @@
struct drm_connector *exynos_drm_connector_create(struct drm_device *dev,
struct drm_encoder *encoder);
struct drm_encoder *exynos_drm_best_encoder(struct drm_connector *connector);
void exynos_drm_display_power(struct drm_connector *connector, int mode);
#endif

2
drivers/gpu/drm/exynos/exynos_drm_encoder.c
View File

@ -57,7 +57,7 @@ static void exynos_drm_connector_power(struct drm_encoder *encoder, int mode)
struct drm_connector *connector;
list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
if (connector->encoder == encoder) {
if (exynos_drm_best_encoder(connector) == encoder) {
DRM_DEBUG_KMS("connector[%d] dpms[%d]\n",
connector->base.id, mode);