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drm/bridge: synopsys: dw-hdmi-qp: Check that necessary hdmi clock is on when hdmi bind

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Check whether ipi/link/vid clk is enabled in
uboot to determine whether the uboot logo is
enabled.

Change-Id: I6da4b0694a3df5a48136c96fa21d5f98dcc8d7c7
Signed-off-by: Algea Cao <algea.cao@rock-chips.com>
This commit is contained in:
Algea Cao
2024-09-23 17:48:37 +08:00
committed by Tao Huang
parent a5e94c5ae1
commit cb42b8db86
1 changed files with 4 additions and 1 deletions
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5
drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.c
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@@ -71,6 +71,8 @@
#define HDMI_HDCP2_AUTH BIT(1)
#define HDMI_HDCP14_AUTH BIT(0)
#define HDMI_CTRL_CLK_EN 0x15
static const unsigned int dw_hdmi_cable[] = {
EXTCON_DISP_HDMI,
EXTCON_NONE,
@@ -4317,7 +4319,8 @@ static struct dw_hdmi_qp *dw_hdmi_qp_probe(struct platform_device *pdev,
hdmi_writel(hdmi, hdmi->refclk_rate, 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) &&
(hdmi_readl(hdmi, CMU_STATUS) & HDMI_CTRL_CLK_EN) == HDMI_CTRL_CLK_EN) {
hdmi->initialized = true;
hdmi->disabled = false;
}