linux-kernel - [PATCH 2/3] drm/bridge: dw_hdmi: Handle snps,disable-cec property

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Date:   Sat, 15 Apr 2023 12:46:12 +0200
From:   Jernej Skrabec <jernej.skrabec@...il.com>
To:     andrzej.hajda@...el.com, neil.armstrong@...aro.org,
        rfoss@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, wens@...e.org,
        samuel@...lland.org
Cc:     Laurent.pinchart@...asonboard.com, jonas@...boo.se,
        airlied@...il.com, daniel@...ll.ch,
        dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-sunxi@...ts.linux.dev, linux-media@...r.kernel.org,
        hverkuil-cisco@...all.nl, Jernej Skrabec <jernej.skrabec@...il.com>
Subject: [PATCH 2/3] drm/bridge: dw_hdmi: Handle snps,disable-cec property

New DT property allows to skip CEC initialization.

Signed-off-by: Jernej Skrabec <jernej.skrabec@...il.com>
---
 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index 603bb3c51027..e7e8199d2fb1 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -3615,7 +3615,9 @@ struct dw_hdmi *dw_hdmi_probe(struct platform_device *pdev,
 		hdmi->audio = platform_device_register_full(&pdevinfo);
 	}
 
-	if (!plat_data->disable_cec && (config0 & HDMI_CONFIG0_CEC)) {
+	if (!plat_data->disable_cec &&
+	    !of_property_read_bool(np, "snps,disable-cec") &&
+	    (config0 & HDMI_CONFIG0_CEC)) {
 		cec.hdmi = hdmi;
 		cec.ops = &dw_hdmi_cec_ops;
 		cec.irq = irq;
-- 
2.40.0