[PATCH 5/5] video: sunxi: dw-hdmi: Use DM for HVCC regulator

[Samuel Holland]

The HDMI PHY depends on the HVCC supply being enabled. So far we have
relied on it being enabled by an earlier firmware stage (SPL or TF-A).
Attempt to enable the regulator here, so we can remove that dependency.

Signed-off-by: Samuel Holland <samuel at sholland.org>
---

 drivers/video/sunxi/sunxi_dw_hdmi.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/video/sunxi/sunxi_dw_hdmi.c b/drivers/video/sunxi/sunxi_dw_hdmi.c
index 04588b570fd..963689358a6 100644
--- a/drivers/video/sunxi/sunxi_dw_hdmi.c
+++ b/drivers/video/sunxi/sunxi_dw_hdmi.c
@@ -19,6 +19,7 @@
 #include <asm/arch/lcdc.h>
 #include <linux/bitops.h>
 #include <linux/delay.h>
+#include <power/regulator.h>
 
 struct sunxi_dw_hdmi_priv {
 	struct dw_hdmi hdmi;
@@ -331,8 +332,13 @@ static int sunxi_dw_hdmi_probe(struct udevice *dev)
 		(struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
 	struct reset_ctl_bulk resets;
 	struct clk_bulk clocks;
+	struct udevice *hvcc;
 	int ret;
 
+	ret = device_get_supply_regulator(dev, "hvcc-supply", &hvcc);
+	if (!ret)
+		regulator_set_enable(hvcc, true);
+
 	/* Set pll3 to 297 MHz */
 	clock_set_pll3(297000000);
 
-- 
2.37.4