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| author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2013-09-23 18:42:11 +0530 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-05-07 11:31:23 +0300 |
| commit | 818a053c54a3d98e4ec9b49ef9d123121e70e9eb (patch) | |
| tree | ef331a3a73215b4b21e2cd0b5fa041344d7065bf /drivers/video/fbdev/omap2/dss/hdmi4.c | |
| parent | 2c5c4075bcb998b54f51497b168ce0b280814e41 (diff) | |
| download | op-kernel-dev-818a053c54a3d98e4ec9b49ef9d123121e70e9eb.zip op-kernel-dev-818a053c54a3d98e4ec9b49ef9d123121e70e9eb.tar.gz | |
OMAPDSS: HDMI4: set regulator voltage to 1.8V
Set the HDMI vdda regulator voltage to the required 1.8V.
This is required for the case when the regulator in the DT data defines
a range of allowed voltages. In this case it's required to set the
voltage, as otherwise enabling the voltage fails.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Diffstat (limited to 'drivers/video/fbdev/omap2/dss/hdmi4.c')
| -rw-r--r-- | drivers/video/fbdev/omap2/dss/hdmi4.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/video/fbdev/omap2/dss/hdmi4.c b/drivers/video/fbdev/omap2/dss/hdmi4.c index e15b89d..5c7dd5c 100644 --- a/drivers/video/fbdev/omap2/dss/hdmi4.c +++ b/drivers/video/fbdev/omap2/dss/hdmi4.c @@ -83,6 +83,7 @@ static void hdmi_runtime_put(void) static int hdmi_init_regulator(void) { + int r; struct regulator *reg; if (hdmi.vdda_hdmi_dac_reg != NULL) @@ -96,6 +97,15 @@ static int hdmi_init_regulator(void) return PTR_ERR(reg); } + if (regulator_can_change_voltage(reg)) { + r = regulator_set_voltage(reg, 1800000, 1800000); + if (r) { + devm_regulator_put(reg); + DSSWARN("can't set the regulator voltage\n"); + return r; + } + } + hdmi.vdda_hdmi_dac_reg = reg; return 0; |
