Move the DP training and video enable from the hotplug handler into
a seperate function and call the same during dpms ON.
With existing code, DP HPD should be generated just few ms before
calling enable_irq in dp_poweron.
This patch removes that stringent time constraint.
Signed-off-by: Ajay Kumar <ajaykumar.rs@xxxxxxxxxxx>
---
drivers/gpu/drm/exynos/exynos_dp_core.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c b/drivers/gpu/drm/exynos/exynos_dp_core.c
index 845d766..a94b114 100644
--- a/drivers/gpu/drm/exynos/exynos_dp_core.c
+++ b/drivers/gpu/drm/exynos/exynos_dp_core.c
@@ -875,10 +875,18 @@ static irqreturn_t exynos_dp_irq_handler(int irq, void *arg)
static void exynos_dp_hotplug(struct work_struct *work)
{
struct exynos_dp_device *dp;
- int ret;
dp = container_of(work, struct exynos_dp_device, hotplug_work);
+ if (dp->drm_dev)
+ drm_helper_hpd_irq_event(dp->drm_dev);
+}
+
+static void exynos_dp_setup(void *in_ctx)
+{
+ struct exynos_dp_device *dp = in_ctx;
+ int ret;
+
ret = exynos_dp_detect_hpd(dp);
if (ret) {
/* Cable has been disconnected, we're done */
@@ -1059,6 +1067,7 @@ static void exynos_dp_poweron(struct exynos_dp_device *dp)
exynos_dp_phy_init(dp);
exynos_dp_init_dp(dp);
enable_irq(dp->irq);
+ exynos_dp_setup(dp);
}
static void exynos_dp_poweroff(struct exynos_dp_device *dp)
--
1.7.9.5
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