linux-kernel - [PATCH 4.7 098/184] ARM: imx6: add missing BM_CLPCR_BYPASS_PMIC

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Date:   Thu, 22 Sep 2016 19:40:32 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Anson Huang <Anson.Huang@....com>,
        Peter Chen <peter.chen@....com>,
        Shawn Guo <shawnguo@...nel.org>
Subject: [PATCH 4.7 098/184] ARM: imx6: add missing BM_CLPCR_BYPASS_PMIC_READY setting for imx6sx

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

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

From: Anson Huang <Anson.Huang@....com>

commit 8aade778f787305fdbfd3c1d54e6b583601b5902 upstream.

i.MX6SX has bypass PMIC ready function, as this function
is normally NOT enabled on the board design, so we need
to bypass the PMIC ready pin check during DSM mode resume
flow, otherwise, the internal DSM resume logic will be
waiting for this signal to be ready forever and cause
resume fail.

Signed-off-by: Anson Huang <Anson.Huang@....com>
Fixes: ff843d621bfc ("ARM: imx: add suspend support for i.mx6sx")
Tested-by: Peter Chen <peter.chen@....com>
Signed-off-by: Shawn Guo <shawnguo@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/arm/mach-imx/pm-imx6.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/arm/mach-imx/pm-imx6.c
+++ b/arch/arm/mach-imx/pm-imx6.c
@@ -310,7 +310,7 @@ int imx6_set_lpm(enum mxc_cpu_pwr_mode m
 		val |= 0x3 << BP_CLPCR_STBY_COUNT;
 		val |= BM_CLPCR_VSTBY;
 		val |= BM_CLPCR_SBYOS;
-		if (cpu_is_imx6sl())
+		if (cpu_is_imx6sl() || cpu_is_imx6sx())
 			val |= BM_CLPCR_BYPASS_PMIC_READY;
 		if (cpu_is_imx6sl() || cpu_is_imx6sx() || cpu_is_imx6ul())
 			val |= BM_CLPCR_BYP_MMDC_CH0_LPM_HS;