diff options
| author |   Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-03-13 14:33:03 +0200 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-05-07 11:31:27 +0300 |
| commit | 02b7a32083b9930543663720758de249b4f6a2a3 (patch) | |
| tree | 5fc18842366eaf1a2f24970eea9937eb8be21122 /drivers/video/fbdev/omap2/dss/dsi.c | |
| parent | OMAPDSS: HDMI4: set regulator voltage to 1.8V (diff) | |
| download | linux-dev-02b7a32083b9930543663720758de249b4f6a2a3.tar.xz linux-dev-02b7a32083b9930543663720758de249b4f6a2a3.zip | |
OMAPDSS: DSI: set regulator voltage to 1.8V
Set the DSI vdd 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/dsi.c')
| -rw-r--r-- | drivers/video/fbdev/omap2/dss/dsi.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/video/fbdev/omap2/dss/dsi.c b/drivers/video/fbdev/omap2/dss/dsi.c index 8be9b04d8849..57f120896b43 100644 --- a/drivers/video/fbdev/omap2/dss/dsi.c +++ b/drivers/video/fbdev/omap2/dss/dsi.c @@ -1161,6 +1161,7 @@ static int dsi_regulator_init(struct platform_device *dsidev) { struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); struct regulator *vdds_dsi; + int r; if (dsi->vdds_dsi_reg != NULL) return 0; @@ -1173,6 +1174,15 @@ static int dsi_regulator_init(struct platform_device *dsidev) return PTR_ERR(vdds_dsi); } + if (regulator_can_change_voltage(vdds_dsi)) { + r = regulator_set_voltage(vdds_dsi, 1800000, 1800000); + if (r) { + devm_regulator_put(vdds_dsi); + DSSERR("can't set the DSI regulator voltage\n"); + return r; + } + } + dsi->vdds_dsi_reg = vdds_dsi; return 0; |