From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753486AbcD2MNF (ORCPT ); Fri, 29 Apr 2016 08:13:05 -0400 Received: from arroyo.ext.ti.com ([192.94.94.40]:51624 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753330AbcD2MND (ORCPT ); Fri, 29 Apr 2016 08:13:03 -0400 From: Peter Ujfalusi To: CC: , , , Subject: [PATCH] ARM: dts: omap5-igep0050: Correct hdmi regulator Date: Fri, 29 Apr 2016 13:21:37 +0300 Message-ID: <1461925297-9734-1-git-send-email-peter.ujfalusi@ti.com> X-Mailer: git-send-email 2.8.1 MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org ldo7_reg should not work as regulator since it is set to 'disabled' state in the omap5-board-common.dtsi and the state is not changed to 'okay' this means that the ldo7_reg is not available to be used in the igep0050 DTS file. ldo4_reg is used by all other OMAP5 boards and this is most likely the correct regulator to use with hdmi. The hdmi needs 1.8V, but the ldo7_reg, based on the dtsi is 2V only. Signed-off-by: Peter Ujfalusi --- Tony, I don't have access to the schematics, but I believe tha the ldo7_reg is not the correct regulator to be used for hdmi. If you have access and it is really ldo7_reg, then we should have this in the omap5-igep0050.dts file: &ldo5_reg { status = "okay"; regulator-min-microvolt = <1800000>; regulator-max-microvolt = <1800000>; }; Regards, Peter arch/arm/boot/dts/omap5-igep0050.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/omap5-igep0050.dts b/arch/arm/boot/dts/omap5-igep0050.dts index 46ecb1dd3b5c..6c8d40327c68 100644 --- a/arch/arm/boot/dts/omap5-igep0050.dts +++ b/arch/arm/boot/dts/omap5-igep0050.dts @@ -20,7 +20,7 @@ }; &hdmi { - vdda-supply = <&ldo7_reg>; + vdda-supply = <&ldo4_reg>; }; &i2c4 { -- 2.8.1