[PATCHv2 2/2] mtd: m25p80: restore the status of SPI flash when stop using it

[Zhiqiang Hou]

From: Hou Zhiqiang 

Implement .shutdown function to restore the status in reboot
process, and add the same operation to the .remove function.

Signed-off-by: Hou Zhiqiang 
---
V2:
 - Changed code format slightly.

 drivers/mtd/devices/m25p80.c | 9 +
 1 file changed, 9 insertions(+)

diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index dbe6a1de2bb8..a4e18f6aaa33 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -307,10 +307,18 @@ static int m25p_remove(struct spi_device *spi)
 {
struct m25p *flash = spi_get_drvdata(spi);
 
+   spi_nor_restore(>spi_nor);
+
/* Clean up MTD stuff. */
return mtd_device_unregister(>spi_nor.mtd);
 }
 
+static void m25p_shutdown(struct spi_device *spi)
+{
+   struct m25p *flash = spi_get_drvdata(spi);
+
+   spi_nor_restore(>spi_nor);
+}
 /*
  * Do NOT add to this array without reading the following:
  *
@@ -386,6 +394,7 @@ static struct spi_driver m25p80_driver = {
.id_table   = m25p_ids,
.probe  = m25p_probe,
.remove = m25p_remove,
+   .shutdown   = m25p_shutdown,
 
/* REVISIT: many of these chips have deep power-down modes, which
 * should clearly be entered on suspend() to minimize power use.
-- 
2.14.1

[PATCHv2 2/2] mtd: m25p80: restore the status of SPI flash when stop using it

[Zhiqiang Hou]

From: Hou Zhiqiang 

Implement .shutdown function to restore the status in reboot
process, and add the same operation to the .remove function.

Signed-off-by: Hou Zhiqiang 
---
V2:
 - Changed code format slightly.

 drivers/mtd/devices/m25p80.c | 9 +
 1 file changed, 9 insertions(+)

diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index dbe6a1de2bb8..a4e18f6aaa33 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -307,10 +307,18 @@ static int m25p_remove(struct spi_device *spi)
 {
struct m25p *flash = spi_get_drvdata(spi);
 
+   spi_nor_restore(>spi_nor);
+
/* Clean up MTD stuff. */
return mtd_device_unregister(>spi_nor.mtd);
 }
 
+static void m25p_shutdown(struct spi_device *spi)
+{
+   struct m25p *flash = spi_get_drvdata(spi);
+
+   spi_nor_restore(>spi_nor);
+}
 /*
  * Do NOT add to this array without reading the following:
  *
@@ -386,6 +394,7 @@ static struct spi_driver m25p80_driver = {
.id_table   = m25p_ids,
.probe  = m25p_probe,
.remove = m25p_remove,
+   .shutdown   = m25p_shutdown,
 
/* REVISIT: many of these chips have deep power-down modes, which
 * should clearly be entered on suspend() to minimize power use.
-- 
2.14.1