From 9c305eb442f3b371fc722ade827bbf673514123e Mon Sep 17 00:00:00 2001
From: Neil Armstrong <narmstrong@baylibre.com>
Date: Fri, 23 Feb 2018 12:44:37 +0100
Subject: [PATCH] drm: bridge: dw-hdmi: Fix overflow workaround for Amlogic Meson GX SoCs
Git-commit: 9c305eb442f3b371fc722ade827bbf673514123e
Patch-mainline: v4.17-rc1
References: bsc#1051510
The Amlogic Meson GX SoCs, embedded the v2.01a controller, has been also
identified needing this workaround.
This patch adds the corresponding version to enable a single iteration for
this specific version.
Fixes: be41fc55f1aa ("drm: bridge: dw-hdmi: Handle overflow workaround based on device version")
Acked-by: Archit Taneja <architt@codeaurora.org>
[narmstrong: s/identifies/identified and rebased against Jernej's change]
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1519386277-25902-1-git-send-email-narmstrong@baylibre.com
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -1654,6 +1654,8 @@ static void dw_hdmi_clear_overflow(struc
* (v1.31a) and multiple Allwinner SoCs (v1.32a) have been identified
* as needing the workaround, with 4 iterations for v1.30a and 1
* iteration for others.
+ * The Amlogic Meson GX SoCs (v2.01a) have been identified as needing
+ * the workaround with a single iteration.
*/
switch (hdmi->version) {
@@ -1662,6 +1664,7 @@ static void dw_hdmi_clear_overflow(struc
break;
case 0x131a:
case 0x132a:
+ case 0x201a:
count = 1;
break;
default: