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ODROID-COMMON: drm/bridge: prevent panic when HDMI is not initialized in U-Boot

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Rockchip added to set BIT 21 in register VIDEO_INTERFACE_CONFIG0 when
HDMI is initialized, but reading a value from the register misleads
functions since the register contains more information and HDMI is not
initialized in U-Boot.

[1] c3c147361d

Signed-off-by: Dongjin Kim <tobetter@gmail.com>
Change-Id: I29912c23c8857f04ac5398edec2c7295938e4348
This commit is contained in:
Dongjin Kim
2024-08-21 16:48:02 +09:00
parent 186c147a41
commit c75795ef5c
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.c
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@@ -3757,7 +3757,7 @@ __dw_hdmi_probe(struct platform_device *pdev,
hdmi_writel(hdmi, 428571429, TIMER_BASE_CONFIG0);
hdmi->logo_plug_out = false;
if (hdmi->phy.ops->read_hpd(hdmi, hdmi->phy.data) == connector_status_connected &&
hdmi_readl(hdmi, I2CM_INTERFACE_CONTROL0)) {
(hdmi_readl(hdmi, I2CM_INTERFACE_CONTROL0) & BIT(21))) {
hdmi->initialized = true;
hdmi->disabled = false;
}