OMAP4: TWL: add vdda_hdmi_dac regulator supply

HDMI requires vdda_hdmi_dac (vdac) power for operation. The regulator,
or the regulator supplying the vdac, has been enabled by default and
things have worked without the HDMI driver enabling the vdac.

I encountered the problem when implementing HDMI device tree support,
where the regulator was not enabled by default.

This patch adds the vdda_hdmi_dac to twl-common.c so that the HDMI
driver can use it.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/twl-common.c b/arch/arm/mach-omap2/twl-common.c
index db5ff6642375..9bf8a89e78c6 100644
--- a/arch/arm/mach-omap2/twl-common.c
+++ b/arch/arm/mach-omap2/twl-common.c
@@ -258,6 +258,10 @@ static struct twl4030_usb_data omap4_usb_pdata = {
         .phy_suspend    = omap4430_phy_suspend,
 };
 
+static struct regulator_consumer_supply omap4_vdda_hdmi_dac_supplies[] = {
+        REGULATOR_SUPPLY("vdda_hdmi_dac", "omapdss_hdmi"),
+};
+
 static struct regulator_init_data omap4_vdac_idata = {
         .constraints = {
                 .min_uV                 = 1800000,
@@ -267,6 +271,8 @@ static struct regulator_init_data omap4_vdac_idata = {
                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
                                         | REGULATOR_CHANGE_STATUS,
         },
+        .num_consumer_supplies  = ARRAY_SIZE(omap4_vdda_hdmi_dac_supplies),
+        .consumer_supplies      = omap4_vdda_hdmi_dac_supplies,
         .supply_regulator       = "V2V1",
 };