linux-kernel - Re: [PATCH] ARM: dts: omap5-igep0050: Correct hdmi regulator

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Message-ID: <20160512165755.GR5995@atomide.com>
Date:	Thu, 12 May 2016 09:57:56 -0700
From:	Tony Lindgren <tony@...mide.com>
To:	Eduard Gavin <egavin@...ebcn.com>
Cc:	"Menon, Nishanth" <nm@...com>,
	Enric Balletbo i Serra <eballetbo@...ebcn.com>,
	Agustí Fontquerni <af@...ebcn.com>,
	linux-omap@...r.kernel.org, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ARM: dts: omap5-igep0050: Correct hdmi regulator

* Eduard Gavin <egavin@...ebcn.com> [160509 07:43]:
> Dear Nishanth,
>   In igepV5 the LDO7 is connected to:
>     VDDA_DSIPORTA - ball AA33
>     VDDA_DSIPORTC - ball AE33
>     VDDA_HDMI - ball AN25
>   LDO4 is connected to:
>     VPP1 - ball AD9

Thanks for the info, here's an updated patch with comments and now
using 1.8V instead of the 2.0V omap5-board-common.dtsi.

Regards,

Tony

8< -----------------
From: Tony Lindgren <tony@...mide.com>
Date: Mon, 9 May 2016 07:51:00 -0700
Subject: [PATCH] ARM: dts: Fix ldo7 source for HDMI on igepv5

Fix ldo7 source for HDMI on igepv5.

Suggested-by: Peter Ujfalusi <peter.ujfalusi@...com>
Signed-off-by: Tony Lindgren <tony@...mide.com>

--- a/arch/arm/boot/dts/omap5-igep0050.dts
+++ b/arch/arm/boot/dts/omap5-igep0050.dts
@@ -35,6 +35,16 @@
 	};
 };
 
+/*
+ * LDO7 is used for HDMI: VDDA_DSIPORTA - ball AA33, VDDA_DSIPORTC - ball AE33
+ * VDDA_HDMI - ball AN25. LDO4 is: VPP1 - ball AD9.
+ */
+&ldo7_reg {
+	status = "okay";
+	regulator-min-microvolt = <1800000>;
+	regulator-max-microvolt = <1800000>;
+};
+
 &omap5_pmx_core {
 	i2c4_pins: pinmux_i2c4_pins {
 		pinctrl-single,pins = <