bcm27xx: remove linux 5.10 compatibility

[openwrt/staging/chunkeey.git] / target / linux / bcm27xx / patches-5.10 / 950-0602-drm-vc4-hdmi-Add-a-workqueue-to-set-scrambling.patch

diff --git a/target/linux/bcm27xx/patches-5.10/950-0602-drm-vc4-hdmi-Add-a-workqueue-to-set-scrambling.patch b/target/linux/bcm27xx/patches-5.10/950-0602-drm-vc4-hdmi-Add-a-workqueue-to-set-scrambling.patch
deleted file mode 100644 (file)
index b937aa9..0000000
--- a/target/linux/bcm27xx/patches-5.10/950-0602-drm-vc4-hdmi-Add-a-workqueue-to-set-scrambling.patch
+++ /dev/null
@@ -1,91 +0,0 @@
-From c20cb28d802aa148cfa90c0682323e9d52dc0466 Mon Sep 17 00:00:00 2001
-From: Maxime Ripard <maxime@cerno.tech>
-Date: Fri, 7 May 2021 15:28:21 +0200
-Subject: [PATCH] drm/vc4: hdmi: Add a workqueue to set scrambling
-
-It looks like some displays (like the LG 27UL850-W) don't enable the
-scrambling when the HDMI driver enables it. However, if we set later the
-scrambler enable bit, the display will work as expected.
-
-Let's create delayed work queue to periodically look at the display
-scrambling status, and if it's not set yet try to enable it again.
-
-Signed-off-by: Maxime Ripard <maxime@cerno.tech>
----
- drivers/gpu/drm/vc4/vc4_hdmi.c | 25 +++++++++++++++++++++++++
- drivers/gpu/drm/vc4/vc4_hdmi.h |  2 ++
- 2 files changed, 27 insertions(+)
-
---- a/drivers/gpu/drm/vc4/vc4_hdmi.c
-+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
-@@ -538,6 +538,8 @@ static bool vc4_hdmi_supports_scrambling
-       return true;
- }
- 
-+#define SCRAMBLING_POLLING_DELAY_MS   1000
-+
- static void vc4_hdmi_enable_scrambling(struct drm_encoder *encoder)
- {
-       struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode;
-@@ -554,6 +556,9 @@ static void vc4_hdmi_enable_scrambling(s
- 
-       HDMI_WRITE(HDMI_SCRAMBLER_CTL, HDMI_READ(HDMI_SCRAMBLER_CTL) |
-                  VC5_HDMI_SCRAMBLER_CTL_ENABLE);
-+
-+      queue_delayed_work(system_wq, &vc4_hdmi->scrambling_work,
-+                         msecs_to_jiffies(SCRAMBLING_POLLING_DELAY_MS));
- }
- 
- static void vc4_hdmi_disable_scrambling(struct drm_encoder *encoder)
-@@ -572,6 +577,9 @@ static void vc4_hdmi_disable_scrambling(
-       if (crtc && !vc4_hdmi_mode_needs_scrambling(&crtc->mode))
-               return;
- 
-+      if (delayed_work_pending(&vc4_hdmi->scrambling_work))
-+              cancel_delayed_work_sync(&vc4_hdmi->scrambling_work);
-+
-       HDMI_WRITE(HDMI_SCRAMBLER_CTL, HDMI_READ(HDMI_SCRAMBLER_CTL) &
-                  ~VC5_HDMI_SCRAMBLER_CTL_ENABLE);
- 
-@@ -579,6 +587,22 @@ static void vc4_hdmi_disable_scrambling(
-       drm_scdc_set_high_tmds_clock_ratio(vc4_hdmi->ddc, false);
- }
- 
-+static void vc4_hdmi_scrambling_wq(struct work_struct *work)
-+{
-+      struct vc4_hdmi *vc4_hdmi = container_of(to_delayed_work(work),
-+                                               struct vc4_hdmi,
-+                                               scrambling_work);
-+
-+      if (drm_scdc_get_scrambling_status(vc4_hdmi->ddc))
-+              return;
-+
-+      drm_scdc_set_high_tmds_clock_ratio(vc4_hdmi->ddc, true);
-+      drm_scdc_set_scrambling(vc4_hdmi->ddc, true);
-+
-+      queue_delayed_work(system_wq, &vc4_hdmi->scrambling_work,
-+                         msecs_to_jiffies(SCRAMBLING_POLLING_DELAY_MS));
-+}
-+
- static void vc4_hdmi_encoder_post_crtc_disable(struct drm_encoder *encoder,
-                                              struct drm_atomic_state *state)
- {
-@@ -2275,6 +2299,7 @@ static int vc4_hdmi_bind(struct device *
-       vc4_hdmi = devm_kzalloc(dev, sizeof(*vc4_hdmi), GFP_KERNEL);
-       if (!vc4_hdmi)
-               return -ENOMEM;
-+      INIT_DELAYED_WORK(&vc4_hdmi->scrambling_work, vc4_hdmi_scrambling_wq);
- 
-       dev_set_drvdata(dev, vc4_hdmi);
-       encoder = &vc4_hdmi->encoder.base.base;
---- a/drivers/gpu/drm/vc4/vc4_hdmi.h
-+++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
-@@ -131,6 +131,8 @@ struct vc4_hdmi {
-       struct vc4_hdmi_encoder encoder;
-       struct drm_connector connector;
- 
-+      struct delayed_work scrambling_work;
-+
-       struct i2c_adapter *ddc;
-       void __iomem *hdmicore_regs;
-       void __iomem *hd_regs;