linux-kernel - [PATCH 4.9 11/38] mfd: twl4030-power: Fix pmic for boards that need vmmc1 on reboot

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Date:   Mon,  4 Dec 2017 16:59:51 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Adam Ford <aford173@...il.com>,
        Lee Jones <lee.jones@...aro.org>
Subject: [PATCH 4.9 11/38] mfd: twl4030-power: Fix pmic for boards that need vmmc1 on reboot

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Adam Ford <aford173@...il.com>

commit ad48ed0c5763dc08931407e455dff5acdbe96e81 upstream.

At least two different omap3630/3730 boards booting from MMC1
fail to reboot if the "ti,twl4030-power-idle-osc-off" or
"ti,twl4030-power-idle" compatible flags are set.  This patch will
keep the vmmc1 powered up during reboot allowing the bootloader
to load.

Signed-off-by: Adam Ford <aford173@...il.com>
Signed-off-by: Lee Jones <lee.jones@...aro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/mfd/twl4030-power.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/mfd/twl4030-power.c
+++ b/drivers/mfd/twl4030-power.c
@@ -701,6 +701,7 @@ static struct twl4030_ins omap3_wrst_seq
 	TWL_RESOURCE_RESET(RES_MAIN_REF),
 	TWL_RESOURCE_GROUP_RESET(RES_GRP_ALL, RES_TYPE_R0, RES_TYPE2_R2),
 	TWL_RESOURCE_RESET(RES_VUSB_3V1),
+	TWL_RESOURCE_RESET(RES_VMMC1),
 	TWL_RESOURCE_GROUP_RESET(RES_GRP_ALL, RES_TYPE_R0, RES_TYPE2_R1),
 	TWL_RESOURCE_GROUP_RESET(RES_GRP_RC, RES_TYPE_ALL, RES_TYPE2_R0),
 	TWL_RESOURCE_ON(RES_RESET),