diff mbox

[1/2] ARM: dts: omap5-board-common: fix ldo1_reg and ldo4_reg ranges

Message ID 1460973967-25077-1-git-send-email-tomi.valkeinen@ti.com (mailing list archive)
State New, archived
Headers show

Commit Message

Tomi Valkeinen April 18, 2016, 10:06 a.m. UTC
ldo4_reg is connected to DSS, and should always be 1.8V. However the
The dts defines a range of 1.5V-1.8V, which requires somethings to set
the actual voltage at runtime. Currently we set the voltage in omapdss
driver.

As the voltage must always be 1.8V, let's just define the range to 1.8V
so that the driver doesn't need to deal with the voltage. In fact, the
driver should not touch the voltage, except in the cases where the
voltage needs to be changed at runtime.

I presume the situation is the same for ldo1_reg, used for CSI, although
I think it is not currently used in the mainline.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 arch/arm/boot/dts/omap5-board-common.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Tony Lindgren April 26, 2016, 4:56 p.m. UTC | #1
* Tomi Valkeinen <tomi.valkeinen@ti.com> [160418 03:07]:
> ldo4_reg is connected to DSS, and should always be 1.8V. However the
> The dts defines a range of 1.5V-1.8V, which requires somethings to set
> the actual voltage at runtime. Currently we set the voltage in omapdss
> driver.
> 
> As the voltage must always be 1.8V, let's just define the range to 1.8V
> so that the driver doesn't need to deal with the voltage. In fact, the
> driver should not touch the voltage, except in the cases where the
> voltage needs to be changed at runtime.

Thanks applying both into omap-for-v4.6/fixes-rc5. Feel free to merge
commit 5607959a4d5b54dcc9a3572bdbf967dfda88ae66 into your DSS tree
too for v4.7 in case it gets too late for these fixes for v4.6-rc.

Regards,

Tony
diff mbox

Patch

diff --git a/arch/arm/boot/dts/omap5-board-common.dtsi b/arch/arm/boot/dts/omap5-board-common.dtsi
index 902657d6713b..914bf4c47404 100644
--- a/arch/arm/boot/dts/omap5-board-common.dtsi
+++ b/arch/arm/boot/dts/omap5-board-common.dtsi
@@ -472,7 +472,7 @@ 
 				ldo1_reg: ldo1 {
 					/* VDDAPHY_CAM: vdda_csiport */
 					regulator-name = "ldo1";
-					regulator-min-microvolt = <1500000>;
+					regulator-min-microvolt = <1800000>;
 					regulator-max-microvolt = <1800000>;
 				};
 
@@ -498,7 +498,7 @@ 
 				ldo4_reg: ldo4 {
 					/* VDDAPHY_DISP: vdda_dsiport/hdmi */
 					regulator-name = "ldo4";
-					regulator-min-microvolt = <1500000>;
+					regulator-min-microvolt = <1800000>;
 					regulator-max-microvolt = <1800000>;
 				};