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45 lines
1.5 KiB
Diff
45 lines
1.5 KiB
Diff
From 4cb4fe3262fbbf6b31731b6b076698bcf951b9a1 Mon Sep 17 00:00:00 2001
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From: "Oliver F. Brown" <oliver.brown@nxp.com>
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Date: Fri, 24 Jul 2020 14:28:05 -0500
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Subject: [PATCH 12/49] MLK-24521: drm: bridge: hdmi: Prevent the driver from
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rejecting VIC 0 modes
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iMX8QM can support the non CEA modes, iMX8M cannot support non CEA modes.
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So driver should allow non CEA modes for iMX8QM.
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Signed-off-by: Oliver F. Brown <oliver.brown@nxp.com>
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Reviewed-by: Liu Ying <victor.liu@nxp.com>
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---
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drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c | 8 ++++++++
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1 file changed, 8 insertions(+)
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diff --git a/drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c b/drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c
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index 442df6284c49..a8fa559de9e9 100644
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--- a/drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c
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+++ b/drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c
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@@ -364,6 +364,7 @@ cdns_hdmi_bridge_mode_valid(struct drm_bridge *bridge,
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{
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struct cdns_mhdp_device *mhdp = bridge->driver_private;
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enum drm_mode_status mode_status = MODE_OK;
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+ u32 vic;
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int ret;
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/* We don't support double-clocked and Interlaced modes */
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@@ -379,6 +380,13 @@ cdns_hdmi_bridge_mode_valid(struct drm_bridge *bridge,
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if (mode->hdisplay > 5120 || mode->vdisplay > 2160)
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return MODE_BAD_HVALUE;
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+ /* imx8mq-hdmi does not support non CEA modes */
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+ if (!strncmp("imx8mq-hdmi", mhdp->plat_data->plat_name, 11)) {
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+ vic = drm_match_cea_mode(mode);
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+ if (vic == 0)
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+ return MODE_BAD;
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+ }
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+
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mhdp->valid_mode = mode;
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ret = cdns_mhdp_plat_call(mhdp, phy_video_valid);
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if (ret == false)
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--
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2.29.2
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