this patch adds kms poll infrastructure to handle hotplug detection event
Signed-off-by: Seung-Woo Kim sw0312.kim@samsung.com Signed-off-by: Kyungmin Park kyungmin.park@samsung.com --- drivers/gpu/drm/exynos/exynos_drm_drv.c | 5 +++++ drivers/gpu/drm/exynos/exynos_drm_fb.c | 12 ++++++++++++ 2 files changed, 17 insertions(+), 0 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c index 83810cb..53e2216 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c @@ -27,6 +27,7 @@
#include "drmP.h" #include "drm.h" +#include "drm_crtc_helper.h"
#include <drm/exynos_drm.h>
@@ -61,6 +62,9 @@ static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
drm_mode_config_init(dev);
+ /* init kms poll for handling hpd */ + drm_kms_helper_poll_init(dev); + exynos_drm_mode_config_init(dev);
/* @@ -116,6 +120,7 @@ static int exynos_drm_unload(struct drm_device *dev) exynos_drm_fbdev_fini(dev); exynos_drm_device_unregister(dev); drm_vblank_cleanup(dev); + drm_kms_helper_poll_fini(dev); drm_mode_config_cleanup(dev); kfree(dev->dev_private);
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fb.c b/drivers/gpu/drm/exynos/exynos_drm_fb.c index 48d29cf..7d91a54 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fb.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fb.c @@ -29,7 +29,9 @@ #include "drmP.h" #include "drm_crtc.h" #include "drm_crtc_helper.h" +#include "drm_fb_helper.h"
+#include "exynos_drm_drv.h" #include "exynos_drm_fb.h" #include "exynos_drm_buf.h" #include "exynos_drm_gem.h" @@ -238,8 +240,18 @@ struct exynos_drm_buf_entry *exynos_drm_fb_get_buf(struct drm_framebuffer *fb) return entry; }
+static void exynos_drm_output_poll_changed(struct drm_device *dev) +{ + struct exynos_drm_private *private = dev->dev_private; + struct drm_fb_helper *fb_helper = private->fb_helper; + + if (fb_helper) + drm_fb_helper_hotplug_event(fb_helper); +} + static struct drm_mode_config_funcs exynos_drm_mode_config_funcs = { .fb_create = exynos_drm_fb_create, + .output_poll_changed = exynos_drm_output_poll_changed, };
void exynos_drm_mode_config_init(struct drm_device *dev)