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From: Robin Gong <yibin.gong@nxp.com>
To: shawnguo@kernel.org, kernel@pengutronix.de,
	fabio.estevam@nxp.com, robh+dt@kernel.org, mark.rutland@arm.com,
	anson.huang@nxp.com
Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-imx@nxp.com
Subject: [PATCH v1] ARM: dts: imx6sl-evk: keep sw4 always on
Date: Mon, 25 Jun 2018 20:34:11 +0800	[thread overview]
Message-ID: <1529930051-14122-1-git-send-email-yibin.gong@nxp.com> (raw)

SW4 is one power rail for LPDDR2 on i.mx6sl-evk, so it should
be kept always on. But it's disabled after switch disabled
interface implemented in pfuze driver
'commit 5fe156f1cab4
("regulator: pfuze100: add enable/disable for switch")'.Thus,
it breaks kernel bootup. Add 'regulator-always-on' for SW4.

Signed-off-by: Robin Gong <yibin.gong@nxp.com>
---
 arch/arm/boot/dts/imx6sl-evk.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/imx6sl-evk.dts b/arch/arm/boot/dts/imx6sl-evk.dts
index 37e792f..798df66 100644
--- a/arch/arm/boot/dts/imx6sl-evk.dts
+++ b/arch/arm/boot/dts/imx6sl-evk.dts
@@ -199,6 +199,7 @@
 			sw4_reg: sw4 {
 				regulator-min-microvolt = <800000>;
 				regulator-max-microvolt = <3300000>;
+				regulator-always-on;
 			};
 
 			swbst_reg: swbst {
-- 
2.7.4


             reply	other threads:[~2018-06-25  4:35 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-25 12:34 Robin Gong [this message]
2018-06-25  5:53 ` [PATCH v1] ARM: dts: imx6sl-evk: keep sw4 always on Anson Huang
2018-07-01  9:34 ` Shawn Guo
2018-07-01 23:32   ` Fabio Estevam
2018-07-02  0:53     ` Anson Huang
2018-07-02  0:54       ` Fabio Estevam
2018-07-02  0:57         ` Anson Huang
2018-07-02  1:00           ` Fabio Estevam
2018-07-02  1:03             ` Anson Huang
2018-07-02  1:05               ` Fabio Estevam
2018-07-02  1:09                 ` Anson Huang
2018-07-02  1:17                   ` Fabio Estevam
2018-07-02  1:19                     ` Anson Huang
2018-07-02  2:12                     ` Robin Gong
2018-07-02 23:14                       ` Fabio Estevam
2018-07-03  5:38                       ` Shawn Guo
2018-07-03  7:44                         ` Anson Huang
2018-07-03 11:10                           ` Fabio Estevam
2018-07-04  1:42                             ` Robin Gong
2018-07-04  6:56                               ` Lothar Waßmann

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