From: Neil Armstrong <narmstrong@baylibre.com>
To: jonas@kwiboo.se, jernej.skrabec@siol.net, robert.foss@linaro.org,
Laurent.pinchart@ideasonboard.com
Cc: dri-devel@lists.freedesktop.org,
linux-amlogic@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Neil Armstrong <narmstrong@baylibre.com>
Subject: [PATCH 2/2] drm/meson: dw-hdmi: disable DW-HDMI CEC sub-driver
Date: Fri, 16 Apr 2021 11:27:37 +0200 [thread overview]
Message-ID: <20210416092737.1971876-3-narmstrong@baylibre.com> (raw)
In-Reply-To: <20210416092737.1971876-1-narmstrong@baylibre.com>
On the Amlogic SoCs, the DW-HDMI HW support is here but the DW-HDMI CEC signal
is not connected to a physical pin, leading to confusion when the dw-hdmi cec
controller can't communicate on the bus.
Disable it to avoid exposing a non-functinal bus.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
---
drivers/gpu/drm/meson/meson_dw_hdmi.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/meson/meson_dw_hdmi.c b/drivers/gpu/drm/meson/meson_dw_hdmi.c
index aad75a22dc33..2ed87cfdd735 100644
--- a/drivers/gpu/drm/meson/meson_dw_hdmi.c
+++ b/drivers/gpu/drm/meson/meson_dw_hdmi.c
@@ -1103,6 +1103,7 @@ static int meson_dw_hdmi_bind(struct device *dev, struct device *master,
dw_plat_data->phy_data = meson_dw_hdmi;
dw_plat_data->input_bus_encoding = V4L2_YCBCR_ENC_709;
dw_plat_data->ycbcr_420_allowed = true;
+ dw_plat_data->disable_cec = true;
if (dw_hdmi_is_compatible(meson_dw_hdmi, "amlogic,meson-gxl-dw-hdmi") ||
dw_hdmi_is_compatible(meson_dw_hdmi, "amlogic,meson-gxm-dw-hdmi") ||
--
2.25.1
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next prev parent reply other threads:[~2021-04-16 9:42 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-16 9:27 [PATCH 0/2] drm/bridge: dw-hdmi: disable loading of DW-HDMI CEC sub-driver Neil Armstrong
2021-04-16 9:27 ` [PATCH 1/2] drm/bridge/synopsys: dw-hdmi: Add an option to suppress loading CEC driver Neil Armstrong
2021-04-16 9:27 ` Neil Armstrong [this message]
2021-04-16 9:58 ` [PATCH 0/2] drm/bridge: dw-hdmi: disable loading of DW-HDMI CEC sub-driver Laurent Pinchart
2021-04-16 11:38 ` Neil Armstrong
2021-04-17 6:31 ` Jernej Škrabec
2021-04-20 15:13 ` Hans Verkuil
2021-04-20 15:19 ` Neil Armstrong
2021-04-20 22:49 ` Laurent Pinchart
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