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From 94d815707144fb76f2e6f718a864f10a8d3f6306 Mon Sep 17 00:00:00 2001
From: Neil Armstrong <narmstrong@baylibre.com>
Date: Wed, 14 Nov 2018 17:39:46 +0100
Subject: [PATCH] drm/bridge: dw-hdmi: allow ycbcr420 modes for >= 0x200a
Now the DW-HDMI Controller supports the HDMI2.0 modes, enable support
for these modes in the connector if the platform supports them.
We limit these modes to DW-HDMI IP version >= 0x200a which
are designed to support HDMI2.0 display modes.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
---
drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 6 ++++++
include/drm/bridge/dw_hdmi.h | 1 +
2 files changed, 7 insertions(+)
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index 6473df3..d10277f 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -2575,6 +2575,12 @@ __dw_hdmi_probe(struct platform_device *pdev,
if (hdmi->phy.ops->setup_hpd)
hdmi->phy.ops->setup_hpd(hdmi, hdmi->phy.data);
+ if (hdmi->version >= 0x200a)
+ hdmi->connector.ycbcr_420_allowed =
+ hdmi->plat_data->ycbcr_420_allowed;
+ else
+ hdmi->connector.ycbcr_420_allowed = false;
+
memset(&pdevinfo, 0, sizeof(pdevinfo));
pdevinfo.parent = dev;
pdevinfo.id = PLATFORM_DEVID_AUTO;
diff --git a/include/drm/bridge/dw_hdmi.h b/include/drm/bridge/dw_hdmi.h
index 27f9cce..c04f497a 100644
--- a/include/drm/bridge/dw_hdmi.h
+++ b/include/drm/bridge/dw_hdmi.h
@@ -128,6 +128,7 @@ struct dw_hdmi_plat_data {
const struct drm_display_mode *mode);
unsigned long input_bus_format;
unsigned long input_bus_encoding;
+ bool ycbcr_420_allowed;
/* Vendor PHY support */
const struct dw_hdmi_phy_ops *phy_ops;
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