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drm/omap: Remove regulator API abuse

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regulator_can_change_voltage() is deprecated and it's use is not necessary
as commit:
6a0028b3dd regulator: Deprecate regulator_can_change_voltage()
describers it clearly.

Also, regulator_set_voltage() is misused in the driver, as it is
supposed to be used only in cases where the regulator voltage needs to
be changed dynamically at runtime. In DSS's case, we always want a fixed
voltage, set in the .dts files.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Peter Ujfalusi 2016-04-28 15:42:18 +03:00 committed by Tomi Valkeinen
parent 4bafcbc77f
commit 973999aa01
3 changed files with 0 additions and 27 deletions
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9
drivers/gpu/drm/omapdrm/dss/dsi.c
View file

@ -1180,15 +1180,6 @@ static int dsi_regulator_init(struct platform_device *dsidev)
return PTR_ERR(vdds_dsi); 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; dsi->vdds_dsi_reg = vdds_dsi;
return 0; return 0;

9
drivers/gpu/drm/omapdrm/dss/hdmi4.c
View file

@ -115,15 +115,6 @@ static int hdmi_init_regulator(void)
return PTR_ERR(reg); 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_reg = reg; hdmi.vdda_reg = reg;
return 0; return 0;

9
drivers/gpu/drm/omapdrm/dss/hdmi5.c
View file

@ -132,15 +132,6 @@ static int hdmi_init_regulator(void)
return PTR_ERR(reg); 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_reg = reg; hdmi.vdda_reg = reg;
return 0; return 0;