[PATCH v2 11/19] video: sunxi: dw-hdmi: read address from DT node

[Jernej Skrabec]

Currently HDMI controller MMIO address is hardcoded. Change that so
address is read from DT node. That will make adding support for new
variants a bit easier.

Signed-off-by: Jernej Skrabec <jernej.skrabec at siol.net>
---
 drivers/video/sunxi/sunxi_dw_hdmi.c | 38 ++++++++++++++++++-----------
 1 file changed, 24 insertions(+), 14 deletions(-)

diff --git a/drivers/video/sunxi/sunxi_dw_hdmi.c b/drivers/video/sunxi/sunxi_dw_hdmi.c
index 6f77b2a43b40..0744954fa15f 100644
--- a/drivers/video/sunxi/sunxi_dw_hdmi.c
+++ b/drivers/video/sunxi/sunxi_dw_hdmi.c
@@ -57,10 +57,10 @@ static int sunxi_dw_hdmi_get_divider(uint clock)
 		return 1;
 }
 
-static void sunxi_dw_hdmi_phy_init(void)
+static void sunxi_dw_hdmi_phy_init(struct dw_hdmi *hdmi)
 {
 	struct sunxi_hdmi_phy * const phy =
-		(struct sunxi_hdmi_phy *)(SUNXI_HDMI_BASE + HDMI_PHY_OFFS);
+		(struct sunxi_hdmi_phy *)(hdmi->ioaddr + HDMI_PHY_OFFS);
 	unsigned long tmo;
 	u32 tmp;
 
@@ -114,10 +114,10 @@ static void sunxi_dw_hdmi_phy_init(void)
 	writel(0x42494E47, &phy->unscramble);
 }
 
-static void sunxi_dw_hdmi_phy_set(uint clock, int phy_div)
+static void sunxi_dw_hdmi_phy_set(struct dw_hdmi *hdmi, uint clock, int phy_div)
 {
 	struct sunxi_hdmi_phy * const phy =
-		(struct sunxi_hdmi_phy *)(SUNXI_HDMI_BASE + HDMI_PHY_OFFS);
+		(struct sunxi_hdmi_phy *)(hdmi->ioaddr + HDMI_PHY_OFFS);
 	int div = sunxi_dw_hdmi_get_divider(clock);
 	u32 tmp;
 
@@ -271,7 +271,7 @@ static int sunxi_dw_hdmi_phy_cfg(struct dw_hdmi *hdmi, uint mpixelclock)
 	int phy_div;
 
 	sunxi_dw_hdmi_pll_set(mpixelclock / 1000, &phy_div);
-	sunxi_dw_hdmi_phy_set(mpixelclock, phy_div);
+	sunxi_dw_hdmi_phy_set(hdmi, mpixelclock, phy_div);
 
 	return 0;
 }
@@ -292,9 +292,9 @@ static bool sunxi_dw_hdmi_mode_valid(struct udevice *dev,
 static int sunxi_dw_hdmi_enable(struct udevice *dev, int panel_bpp,
 				const struct display_timing *edid)
 {
-	struct sunxi_hdmi_phy * const phy =
-		(struct sunxi_hdmi_phy *)(SUNXI_HDMI_BASE + HDMI_PHY_OFFS);
 	struct sunxi_dw_hdmi_priv *priv = dev_get_priv(dev);
+	struct sunxi_hdmi_phy * const phy =
+		(struct sunxi_hdmi_phy *)(priv->hdmi.ioaddr + HDMI_PHY_OFFS);
 	int ret;
 
 	ret = dw_hdmi_enable(&priv->hdmi, edid);
@@ -316,12 +316,26 @@ static int sunxi_dw_hdmi_enable(struct udevice *dev, int panel_bpp,
 	 * again or othwerwise BSP driver won't work. Dummy read is
 	 * needed or otherwise last write doesn't get written correctly.
 	 */
-	(void)readb(SUNXI_HDMI_BASE);
+	(void)readb(priv->hdmi.ioaddr);
 	writel(0, &phy->unscramble);
 
 	return 0;
 }
 
+static int sunxi_dw_hdmi_of_to_plat(struct udevice *dev)
+{
+	struct sunxi_dw_hdmi_priv *priv = dev_get_priv(dev);
+	struct dw_hdmi *hdmi = &priv->hdmi;
+
+	hdmi->ioaddr = (ulong)dev_read_addr(dev);
+	hdmi->i2c_clk_high = 0xd8;
+	hdmi->i2c_clk_low = 0xfe;
+	hdmi->reg_io_width = 1;
+	hdmi->phy_set = sunxi_dw_hdmi_phy_cfg;
+
+	return 0;
+}
+
 static int sunxi_dw_hdmi_probe(struct udevice *dev)
 {
 	struct display_plat *uc_plat = dev_get_uclass_plat(dev);
@@ -346,13 +360,8 @@ static int sunxi_dw_hdmi_probe(struct udevice *dev)
 	/* Clock on */
 	setbits_le32(&ccm->hdmi_clk_cfg, CCM_HDMI_CTRL_GATE);
 
-	sunxi_dw_hdmi_phy_init();
+	sunxi_dw_hdmi_phy_init(&priv->hdmi);
 
-	priv->hdmi.ioaddr = SUNXI_HDMI_BASE;
-	priv->hdmi.i2c_clk_high = 0xd8;
-	priv->hdmi.i2c_clk_low = 0xfe;
-	priv->hdmi.reg_io_width = 1;
-	priv->hdmi.phy_set = sunxi_dw_hdmi_phy_cfg;
 	priv->mux = uc_plat->source_id;
 
 	ret = dw_hdmi_phy_wait_for_hpd(&priv->hdmi);
@@ -382,6 +391,7 @@ U_BOOT_DRIVER(sunxi_dw_hdmi) = {
 	.id	= UCLASS_DISPLAY,
 	.of_match = sunxi_dw_hdmi_ids,
 	.ops	= &sunxi_dw_hdmi_ops,
+	.of_to_plat = sunxi_dw_hdmi_of_to_plat,
 	.probe	= sunxi_dw_hdmi_probe,
 	.priv_auto	= sizeof(struct sunxi_dw_hdmi_priv),
 };
-- 
2.30.1