HDMI 1.4b support the CEA video modes as per range of CEA-861-D (VIC 1-64).
For any other mode, the VIC filed in AVI infoframes should be 0.
HDMI 2.0 sinks, support video modes range as per CEA-861-F spec, which is
extended to (VIC 1-107).

This patch adds a bool input variable, which indicates if the connected
sink is a HDMI 2.0 sink or not. This will make sure that we don't pass a
HDMI 2.0 VIC to a HDMI 1.4 sink.

This patch touches all drm drivers, who are callers of this function
drm_hdmi_avi_infoframe_from_display_mode but to make sure there is
no change in current behavior, is_hdmi2 is kept as false.

In case of I915 driver, this patch checks the connector->display_info
to check if the connected display is HDMI 2.0.

Cc: Ville Syrjala <ville.syrj...@linux.intel.com>
Cc: Jose Abreu <jose.ab...@synopsys.com>
Cc: Andrzej Hajda <a.ha...@samsung.com>
Cc: Alex Deucher <alexander.deuc...@amd.com>
Cc: Daniel Vetter <daniel.vet...@intel.com>

PS: This patch touches a few lines in few files, which were
already above 80 char, so checkpatch gives 80 char warning again.
- gpu/drm/omapdrm/omap_encoder.c
- gpu/drm/i915/intel_sdvo.c

Signed-off-by: Shashank Sharma <shashank.sha...@intel.com>
---
 drivers/gpu/drm/amd/amdgpu/dce_v10_0.c    |  2 +-
 drivers/gpu/drm/amd/amdgpu/dce_v11_0.c    |  2 +-
 drivers/gpu/drm/amd/amdgpu/dce_v8_0.c     |  2 +-
 drivers/gpu/drm/bridge/analogix-anx78xx.c |  3 ++-
 drivers/gpu/drm/bridge/sii902x.c          |  2 +-
 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c |  2 +-
 drivers/gpu/drm/drm_edid.c                | 12 +++++++++++-
 drivers/gpu/drm/exynos/exynos_hdmi.c      |  2 +-
 drivers/gpu/drm/i2c/tda998x_drv.c         |  2 +-
 drivers/gpu/drm/i915/intel_hdmi.c         |  5 ++++-
 drivers/gpu/drm/i915/intel_sdvo.c         |  3 ++-
 drivers/gpu/drm/mediatek/mtk_hdmi.c       |  2 +-
 drivers/gpu/drm/omapdrm/omap_encoder.c    |  3 ++-
 drivers/gpu/drm/radeon/radeon_audio.c     |  2 +-
 drivers/gpu/drm/rockchip/inno_hdmi.c      |  2 +-
 drivers/gpu/drm/sti/sti_hdmi.c            |  2 +-
 drivers/gpu/drm/tegra/hdmi.c              |  2 +-
 drivers/gpu/drm/tegra/sor.c               |  2 +-
 drivers/gpu/drm/vc4/vc4_hdmi.c            |  2 +-
 drivers/gpu/drm/zte/zx_hdmi.c             |  2 +-
 include/drm/drm_edid.h                    |  3 ++-
 21 files changed, 38 insertions(+), 21 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c 
b/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c
index d4452d8..ab7a399 100644
--- a/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c
@@ -1877,7 +1877,7 @@ static void dce_v10_0_afmt_setmode(struct drm_encoder 
*encoder,
        dce_v10_0_audio_write_sad_regs(encoder);
        dce_v10_0_audio_write_latency_fields(encoder, mode);
 
-       err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode);
+       err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode, false);
        if (err < 0) {
                DRM_ERROR("failed to setup AVI infoframe: %zd\n", err);
                return;
diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c 
b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
index 5b24e89..3c5fd83 100644
--- a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
@@ -1861,7 +1861,7 @@ static void dce_v11_0_afmt_setmode(struct drm_encoder 
*encoder,
        dce_v11_0_audio_write_sad_regs(encoder);
        dce_v11_0_audio_write_latency_fields(encoder, mode);
 
-       err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode);
+       err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode, false);
        if (err < 0) {
                DRM_ERROR("failed to setup AVI infoframe: %zd\n", err);
                return;
diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c 
b/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c
index d2590d7..c564dca 100644
--- a/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c
@@ -1760,7 +1760,7 @@ static void dce_v8_0_afmt_setmode(struct drm_encoder 
*encoder,
        dce_v8_0_audio_write_sad_regs(encoder);
        dce_v8_0_audio_write_latency_fields(encoder, mode);
 
-       err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode);
+       err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode, false);
        if (err < 0) {
                DRM_ERROR("failed to setup AVI infoframe: %zd\n", err);
                return;
diff --git a/drivers/gpu/drm/bridge/analogix-anx78xx.c 
b/drivers/gpu/drm/bridge/analogix-anx78xx.c
index a2a8236..f9b77b8 100644
--- a/drivers/gpu/drm/bridge/analogix-anx78xx.c
+++ b/drivers/gpu/drm/bridge/analogix-anx78xx.c
@@ -1097,7 +1097,8 @@ static void anx78xx_bridge_mode_set(struct drm_bridge 
*bridge,
 
        mutex_lock(&anx78xx->lock);
 
-       err = drm_hdmi_avi_infoframe_from_display_mode(&frame, adjusted_mode);
+       err = drm_hdmi_avi_infoframe_from_display_mode(&frame, adjusted_mode,
+                                                      false);
        if (err) {
                DRM_ERROR("Failed to setup AVI infoframe: %d\n", err);
                goto unlock;
diff --git a/drivers/gpu/drm/bridge/sii902x.c b/drivers/gpu/drm/bridge/sii902x.c
index 9126d03..dcf15d7 100644
--- a/drivers/gpu/drm/bridge/sii902x.c
+++ b/drivers/gpu/drm/bridge/sii902x.c
@@ -269,7 +269,7 @@ static void sii902x_bridge_mode_set(struct drm_bridge 
*bridge,
        if (ret)
                return;
 
-       ret = drm_hdmi_avi_infoframe_from_display_mode(&frame, adj);
+       ret = drm_hdmi_avi_infoframe_from_display_mode(&frame, adj, false);
        if (ret < 0) {
                DRM_ERROR("couldn't fill AVI infoframe\n");
                return;
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c 
b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index af93f7a..5ff2886 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -1146,7 +1146,7 @@ static void hdmi_config_AVI(struct dw_hdmi *hdmi, struct 
drm_display_mode *mode)
        u8 val;
 
        /* Initialise info frame from DRM mode */
-       drm_hdmi_avi_infoframe_from_display_mode(&frame, mode);
+       drm_hdmi_avi_infoframe_from_display_mode(&frame, mode, false);
 
        if (hdmi->hdmi_data.enc_out_format == YCBCR444)
                frame.colorspace = HDMI_COLORSPACE_YUV444;
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 3b494c2..f9a4b08 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -4664,12 +4664,14 @@ EXPORT_SYMBOL(drm_set_preferred_mode);
  *                                              data from a DRM display mode
  * @frame: HDMI AVI infoframe
  * @mode: DRM display mode
+ * @is_hdmi2: Sink is HDMI 2.0 compliant
  *
  * Return: 0 on success or a negative error code on failure.
  */
 int
 drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe *frame,
-                                        const struct drm_display_mode *mode)
+                                        const struct drm_display_mode *mode,
+                                        bool is_hdmi2)
 {
        int err;
 
@@ -4685,6 +4687,14 @@ drm_hdmi_avi_infoframe_from_display_mode(struct 
hdmi_avi_infoframe *frame,
 
        frame->video_code = drm_match_cea_mode(mode);
 
+       /*
+        * HDMI 1.4 VIC range: 1 <= VIC <= 64 (CEA-861-D) but
+        * HDMI 2.0 VIC range: 1 <= VIC <= 107 (CEA-861-F). So we
+        * have to make sure we dont break HDMI 1.4 sinks.
+        */
+       if (!is_hdmi2 && frame->video_code > 64)
+               frame->video_code = 0;
+
        frame->picture_aspect = HDMI_PICTURE_ASPECT_NONE;
 
        /*
diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c 
b/drivers/gpu/drm/exynos/exynos_hdmi.c
index 5243840..5cb44d4 100644
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -781,7 +781,7 @@ static void hdmi_reg_infoframes(struct hdmi_context *hdata)
        }
 
        ret = drm_hdmi_avi_infoframe_from_display_mode(&frm.avi,
-                       &hdata->current_mode);
+                       &hdata->current_mode, false);
        if (!ret)
                ret = hdmi_avi_infoframe_pack(&frm.avi, buf, sizeof(buf));
        if (ret > 0) {
diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c 
b/drivers/gpu/drm/i2c/tda998x_drv.c
index 86f47e1..d1e7ac5 100644
--- a/drivers/gpu/drm/i2c/tda998x_drv.c
+++ b/drivers/gpu/drm/i2c/tda998x_drv.c
@@ -712,7 +712,7 @@ tda998x_write_avi(struct tda998x_priv *priv, struct 
drm_display_mode *mode)
 {
        union hdmi_infoframe frame;
 
-       drm_hdmi_avi_infoframe_from_display_mode(&frame.avi, mode);
+       drm_hdmi_avi_infoframe_from_display_mode(&frame.avi, mode, false);
        frame.avi.quantization_range = HDMI_QUANTIZATION_RANGE_FULL;
 
        tda998x_write_if(priv, DIP_IF_FLAGS_IF2, REG_IF2_HB0, &frame);
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c 
b/drivers/gpu/drm/i915/intel_hdmi.c
index 3eec74c..96644f3 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -458,11 +458,14 @@ static void intel_hdmi_set_avi_infoframe(struct 
drm_encoder *encoder,
        struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder);
        const struct drm_display_mode *adjusted_mode =
                &crtc_state->base.adjusted_mode;
+       struct drm_connector *connector = &intel_hdmi->attached_connector->base;
+       bool is_hdmi2 = connector->display_info.hdmi.scdc.supported;
        union hdmi_infoframe frame;
        int ret;
 
        ret = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi,
-                                                      adjusted_mode);
+                                                      adjusted_mode,
+                                                      is_hdmi2);
        if (ret < 0) {
                DRM_ERROR("couldn't fill AVI infoframe\n");
                return;
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c 
b/drivers/gpu/drm/i915/intel_sdvo.c
index 816a6f5..694f626 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -1011,7 +1011,8 @@ static bool intel_sdvo_set_avi_infoframe(struct 
intel_sdvo *intel_sdvo,
        ssize_t len;
 
        ret = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi,
-                                                      
&pipe_config->base.adjusted_mode);
+                                                      
&pipe_config->base.adjusted_mode,
+                                                      false);
        if (ret < 0) {
                DRM_ERROR("couldn't fill AVI infoframe\n");
                return false;
diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c 
b/drivers/gpu/drm/mediatek/mtk_hdmi.c
index c262512..80c36af 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
@@ -975,7 +975,7 @@ static int mtk_hdmi_setup_avi_infoframe(struct mtk_hdmi 
*hdmi,
        u8 buffer[17];
        ssize_t err;
 
-       err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode);
+       err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode, false);
        if (err < 0) {
                dev_err(hdmi->dev,
                        "Failed to get AVI infoframe from mode: %zd\n", err);
diff --git a/drivers/gpu/drm/omapdrm/omap_encoder.c 
b/drivers/gpu/drm/omapdrm/omap_encoder.c
index 86c977b..624f5b5 100644
--- a/drivers/gpu/drm/omapdrm/omap_encoder.c
+++ b/drivers/gpu/drm/omapdrm/omap_encoder.c
@@ -85,7 +85,8 @@ static void omap_encoder_mode_set(struct drm_encoder *encoder,
        if (hdmi_mode && dssdev->driver->set_hdmi_infoframe) {
                struct hdmi_avi_infoframe avi;
 
-               r = drm_hdmi_avi_infoframe_from_display_mode(&avi, 
adjusted_mode);
+               r = drm_hdmi_avi_infoframe_from_display_mode(&avi, 
adjusted_mode,
+                                                            false);
                if (r == 0)
                        dssdev->driver->set_hdmi_infoframe(dssdev, &avi);
        }
diff --git a/drivers/gpu/drm/radeon/radeon_audio.c 
b/drivers/gpu/drm/radeon/radeon_audio.c
index b214663..49b42bf 100644
--- a/drivers/gpu/drm/radeon/radeon_audio.c
+++ b/drivers/gpu/drm/radeon/radeon_audio.c
@@ -516,7 +516,7 @@ static int radeon_audio_set_avi_packet(struct drm_encoder 
*encoder,
        if (!connector)
                return -EINVAL;
 
-       err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode);
+       err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode, false);
        if (err < 0) {
                DRM_ERROR("failed to setup AVI infoframe: %d\n", err);
                return err;
diff --git a/drivers/gpu/drm/rockchip/inno_hdmi.c 
b/drivers/gpu/drm/rockchip/inno_hdmi.c
index 006260d..b105f1c 100644
--- a/drivers/gpu/drm/rockchip/inno_hdmi.c
+++ b/drivers/gpu/drm/rockchip/inno_hdmi.c
@@ -294,7 +294,7 @@ static int inno_hdmi_config_video_avi(struct inno_hdmi 
*hdmi,
        union hdmi_infoframe frame;
        int rc;
 
-       rc = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi, mode);
+       rc = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi, mode, false);
 
        if (hdmi->hdmi_data.enc_out_format == HDMI_COLORSPACE_YUV444)
                frame.avi.colorspace = HDMI_COLORSPACE_YUV444;
diff --git a/drivers/gpu/drm/sti/sti_hdmi.c b/drivers/gpu/drm/sti/sti_hdmi.c
index ce2dcba..2128b8c 100644
--- a/drivers/gpu/drm/sti/sti_hdmi.c
+++ b/drivers/gpu/drm/sti/sti_hdmi.c
@@ -434,7 +434,7 @@ static int hdmi_avi_infoframe_config(struct sti_hdmi *hdmi)
 
        DRM_DEBUG_DRIVER("\n");
 
-       ret = drm_hdmi_avi_infoframe_from_display_mode(&infoframe, mode);
+       ret = drm_hdmi_avi_infoframe_from_display_mode(&infoframe, mode, false);
        if (ret < 0) {
                DRM_ERROR("failed to setup AVI infoframe: %d\n", ret);
                return ret;
diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c
index cda0491..718d8db 100644
--- a/drivers/gpu/drm/tegra/hdmi.c
+++ b/drivers/gpu/drm/tegra/hdmi.c
@@ -734,7 +734,7 @@ static void tegra_hdmi_setup_avi_infoframe(struct 
tegra_hdmi *hdmi,
        u8 buffer[17];
        ssize_t err;
 
-       err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode);
+       err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode, false);
        if (err < 0) {
                dev_err(hdmi->dev, "failed to setup AVI infoframe: %zd\n", err);
                return;
diff --git a/drivers/gpu/drm/tegra/sor.c b/drivers/gpu/drm/tegra/sor.c
index a8f5289..fb2709c 100644
--- a/drivers/gpu/drm/tegra/sor.c
+++ b/drivers/gpu/drm/tegra/sor.c
@@ -1904,7 +1904,7 @@ tegra_sor_hdmi_setup_avi_infoframe(struct tegra_sor *sor,
        value &= ~INFOFRAME_CTRL_ENABLE;
        tegra_sor_writel(sor, value, SOR_HDMI_AVI_INFOFRAME_CTRL);
 
-       err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode);
+       err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode, false);
        if (err < 0) {
                dev_err(sor->dev, "failed to setup AVI infoframe: %d\n", err);
                return err;
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index e9cbe26..5d81301 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -394,7 +394,7 @@ static void vc4_hdmi_set_avi_infoframe(struct drm_encoder 
*encoder)
        union hdmi_infoframe frame;
        int ret;
 
-       ret = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi, mode);
+       ret = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi, mode, false);
        if (ret < 0) {
                DRM_ERROR("couldn't fill AVI infoframe\n");
                return;
diff --git a/drivers/gpu/drm/zte/zx_hdmi.c b/drivers/gpu/drm/zte/zx_hdmi.c
index c47b9cb..3e267dd 100644
--- a/drivers/gpu/drm/zte/zx_hdmi.c
+++ b/drivers/gpu/drm/zte/zx_hdmi.c
@@ -125,7 +125,7 @@ static int zx_hdmi_config_video_avi(struct zx_hdmi *hdmi,
        union hdmi_infoframe frame;
        int ret;
 
-       ret = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi, mode);
+       ret = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi, mode, false);
        if (ret) {
                DRM_DEV_ERROR(hdmi->dev, "failed to get avi infoframe: %d\n",
                              ret);
diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h
index a21d494..a4d174e7 100644
--- a/include/drm/drm_edid.h
+++ b/include/drm/drm_edid.h
@@ -348,7 +348,8 @@ drm_load_edid_firmware(struct drm_connector *connector)
 
 int
 drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe *frame,
-                                        const struct drm_display_mode *mode);
+                                        const struct drm_display_mode *mode,
+                                        bool is_hdmi2);
 int
 drm_hdmi_vendor_infoframe_from_display_mode(struct hdmi_vendor_infoframe 
*frame,
                                            const struct drm_display_mode 
*mode);
-- 
2.7.4

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