drm/omap: Remove regulator API abuse

regulator_can_change_voltage() is deprecated and it's use is not necessary
as commit:
6a0028b3dd67b 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>

diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c b/drivers/gpu/drm/omapdrm/dss/dsi.c
index 8730646..9ed8272 100644 (file)
--- a/drivers/gpu/drm/omapdrm/dss/dsi.c
+++ b/drivers/gpu/drm/omapdrm/dss/dsi.c
@@ -1180,15 +1180,6 @@ 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;

diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi4.c b/drivers/gpu/drm/omapdrm/dss/hdmi4.c
index eef260f..f93c70a 100644 (file)
--- a/drivers/gpu/drm/omapdrm/dss/hdmi4.c
+++ b/drivers/gpu/drm/omapdrm/dss/hdmi4.c
@@ -115,15 +115,6 @@ 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_reg = reg;
 
        return 0;

diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi5.c b/drivers/gpu/drm/omapdrm/dss/hdmi5.c
index 417dff5..e129245 100644 (file)
--- a/drivers/gpu/drm/omapdrm/dss/hdmi5.c
+++ b/drivers/gpu/drm/omapdrm/dss/hdmi5.c
@@ -132,15 +132,6 @@ 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_reg = reg;
 
        return 0;