Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753502AbbH0M0w (ORCPT ); Thu, 27 Aug 2015 08:26:52 -0400 Received: from mail-pa0-f52.google.com ([209.85.220.52]:35585 "EHLO mail-pa0-f52.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752033AbbH0M0u (ORCPT ); Thu, 27 Aug 2015 08:26:50 -0400 Subject: Re: [PATCH] ARM: dts: use vqmmc-supply of emmc/sd for exynos4412-odroid-common To: Jaehoon Chung , linux-samsung-soc@vger.kernel.org References: <1440667758-14960-1-git-send-email-jh80.chung@samsung.com> Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Kukjin Kim From: Krzysztof Kozlowski Message-ID: <55DF0204.1010604@samsung.com> Date: Thu, 27 Aug 2015 21:26:44 +0900 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 MIME-Version: 1.0 In-Reply-To: <1440667758-14960-1-git-send-email-jh80.chung@samsung.com> Content-Type: text/plain; charset=iso-8859-2 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1783 Lines: 55 W dniu 27.08.2015 o 18:29, Jaehoon Chung pisze: > Currently vmmc's property is wrong. > If it needs to control two supplies, then it has to use vmmc/vqmmc-supply. > (Card supply power and I/O Line supply Power.) > > Signed-off-by: Jaehoon Chung > --- > arch/arm/boot/dts/exynos4412-odroid-common.dtsi | 7 ++++--- > 1 file changed, 4 insertions(+), 3 deletions(-) > > diff --git a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi > index ca7d168..4ddabfd 100644 > --- a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi > +++ b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi > @@ -461,10 +461,10 @@ > &mshc_0 { > pinctrl-0 = <&sd4_clk &sd4_cmd &sd4_bus4 &sd4_bus8>; > pinctrl-names = "default"; > - vmmc-supply = <&ldo20_reg &buck8_reg>; > + vmmc-supply = <&ldo20_reg>; > + vqmmc-supply = <&buck8_reg>; Shouldn't this be reversed? LDO20 has 1.8V and it goes to MMC connector, so it should be VQMMC? In the same time I can't find on schematics where BUCK8 goes... The SDHCI_2 node below looks good. Best regards, Krzysztof > mmc-pwrseq = <&emmc_pwrseq>; > status = "okay"; > - > num-slots = <1>; > broken-cd; > card-detect-delay = <200>; > @@ -485,7 +485,8 @@ > bus-width = <4>; > pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_cd &sd2_bus4>; > pinctrl-names = "default"; > - vmmc-supply = <&ldo4_reg &ldo21_reg>; > + vmmc-supply = <&ldo21_reg>; > + vqmmc-supply = <&ldo4_reg>; > cd-gpios = <&gpk2 2 0>; > cd-inverted; > status = "okay"; > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/