From: Han Xu <b45815@freescale.com>
Date: Thu, 30 Jul 2015 21:35:52 +0000 (-0500)
Subject: MLK-11335: mtd: qspi: enalbe LPSR for qspi
X-Git-Tag: C0P2-H0.0--20200415~3952
X-Git-Url: https://git.somdevices.com/?a=commitdiff_plain;h=35fa09709ee86e8479c20b7f1c1a9a2e76b184ee;p=linux.git

MLK-11335: mtd: qspi: enalbe LPSR for qspi

The LPSR turns off the power for IOMUX when suspending so restore the
IOMUX when resuming.

Signed-off-by: Han Xu <b45815@freescale.com>
(cherry picked from commit 906d0c1381e865dc7c96a4bde6fe694f1ce089a9)
---

diff --git a/drivers/mtd/spi-nor/fsl-quadspi.c b/drivers/mtd/spi-nor/fsl-quadspi.c
index 1b04099c5ab5..54f39e383951 100644
--- a/drivers/mtd/spi-nor/fsl-quadspi.c
+++ b/drivers/mtd/spi-nor/fsl-quadspi.c
@@ -1235,6 +1235,7 @@ static int fsl_qspi_remove(struct platform_device *pdev)
 
 static int fsl_qspi_suspend(struct platform_device *pdev, pm_message_t state)
 {
+	pinctrl_pm_select_sleep_state(&pdev->dev);
 	return 0;
 }
 
@@ -1243,6 +1244,8 @@ static int fsl_qspi_resume(struct platform_device *pdev)
 	int ret;
 	struct fsl_qspi *q = platform_get_drvdata(pdev);
 
+	pinctrl_pm_select_default_state(&pdev->dev);
+
 	ret = fsl_qspi_clk_prep_enable(q);
 	if (ret)
 		return ret;