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[06/19] video: sunxi: Use DW-HDMI hpd function

Message ID 20210223204631.1609597-7-jernej.skrabec@siol.net
State New
Delegated to: Andre Przywara
Headers show
Series video: sunxi: Rework DE2 driver | expand

Commit Message

Jernej Škrabec Feb. 23, 2021, 8:46 p.m. UTC
It turns out that even though A64, H3 and H5 have custom PHY, standard
hot plug detection for DW-HDMI works just fine.

Remove custom hpd method to reduce amount of custom code.

Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
---
 drivers/video/sunxi/sunxi_dw_hdmi.c | 34 +++++------------------------
 1 file changed, 6 insertions(+), 28 deletions(-)
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Patch

diff --git a/drivers/video/sunxi/sunxi_dw_hdmi.c b/drivers/video/sunxi/sunxi_dw_hdmi.c
index e3811a2ec15f..37e78ff24111 100644
--- a/drivers/video/sunxi/sunxi_dw_hdmi.c
+++ b/drivers/video/sunxi/sunxi_dw_hdmi.c
@@ -114,28 +114,6 @@  static void sunxi_dw_hdmi_phy_init(void)
 	writel(0x42494E47, &phy->unscramble);
 }
 
-static int sunxi_dw_hdmi_get_plug_in_status(void)
-{
-	struct sunxi_hdmi_phy * const phy =
-		(struct sunxi_hdmi_phy *)(SUNXI_HDMI_BASE + HDMI_PHY_OFFS);
-
-	return !!(readl(&phy->status) & (1 << 19));
-}
-
-static int sunxi_dw_hdmi_wait_for_hpd(void)
-{
-	ulong start;
-
-	start = get_timer(0);
-	do {
-		if (sunxi_dw_hdmi_get_plug_in_status())
-			return 0;
-		udelay(100);
-	} while (get_timer(start) < 300);
-
-	return -1;
-}
-
 static void sunxi_dw_hdmi_phy_set(uint clock, int phy_div)
 {
 	struct sunxi_hdmi_phy * const phy =
@@ -370,12 +348,6 @@  static int sunxi_dw_hdmi_probe(struct udevice *dev)
 
 	sunxi_dw_hdmi_phy_init();
 
-	ret = sunxi_dw_hdmi_wait_for_hpd();
-	if (ret < 0) {
-		debug("hdmi can not get hpd signal\n");
-		return -1;
-	}
-
 	priv->hdmi.ioaddr = SUNXI_HDMI_BASE;
 	priv->hdmi.i2c_clk_high = 0xd8;
 	priv->hdmi.i2c_clk_low = 0xfe;
@@ -383,6 +355,12 @@  static int sunxi_dw_hdmi_probe(struct udevice *dev)
 	priv->hdmi.phy_set = sunxi_dw_hdmi_phy_cfg;
 	priv->mux = uc_plat->source_id;
 
+	ret = dw_hdmi_phy_wait_for_hpd(&priv->hdmi);
+	if (ret < 0) {
+		debug("hdmi can not get hpd signal\n");
+		return -1;
+	}
+
 	uclass_get_device_by_phandle(UCLASS_I2C, dev, "ddc-i2c-bus",
 				     &priv->hdmi.ddc_bus);