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drm: bridge: dw-hdmi: Fix overflow workaround for Amlogic Meson GX SoCs

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commit 9c305eb442 upstream.

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: be41fc55f1 ("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
[narmstrong: v4.14 to v4.16 backport]
Cc: <stable@vger.kernel.org> # 4.14.x
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Neil Armstrong
2018-02-23 12:44:37 +01:00
committed by Greg Kroah-Hartman
parent 94c0308279
commit 00c54b3544
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
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@@ -1634,6 +1634,8 @@ static void dw_hdmi_clear_overflow(struct dw_hdmi *hdmi)
* (and possibly on the platform). So far only i.MX6Q (v1.30a) and
* i.MX6DL (v1.31a) have been identified as needing the workaround, with
* 4 and 1 iterations respectively.
* The Amlogic Meson GX SoCs (v2.01a) have been identified as needing
* the workaround with a single iteration.
*/
switch (hdmi->version) {
@@ -1641,6 +1643,7 @@ static void dw_hdmi_clear_overflow(struct dw_hdmi *hdmi)
count = 4;
break;
case 0x131a:
case 0x201a:
count = 1;
break;
default: