diff options
| author | Allen Xu <b45815@freescale.com> | 2014-05-08 14:56:42 -0500 |
|---|---|---|
| committer | Nitin Garg <nitin.garg@freescale.com> | 2015-09-17 08:58:27 -0500 |
| commit | db2a07a7453cd97c02811b168a3aac04185002d2 (patch) | |
| tree | b3a087eddb7dbf3d26b82e0f0022d74478123b09 /drivers/mtd | |
| parent | d83588e467eaf72e2554c5d114c83a279fa657fe (diff) | |
ENGR00319582 iMX6SX: qspi code change to support DSM
add suspend/resume functions and reset qspi controller when resume.
Signed-off-by: Allen Xu <b45815@freescale.com>
(cherry picked from commit cdea16036e968fe2f1011339dfef476e347fb725)
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/spi-nor/fsl-quadspi.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/mtd/spi-nor/fsl-quadspi.c b/drivers/mtd/spi-nor/fsl-quadspi.c index 101ffb1fec93..6afa9064ad04 100644 --- a/drivers/mtd/spi-nor/fsl-quadspi.c +++ b/drivers/mtd/spi-nor/fsl-quadspi.c @@ -1058,6 +1058,22 @@ static int fsl_qspi_remove(struct platform_device *pdev) return 0; } +static int fsl_qspi_suspend(struct platform_device *pdev, pm_message_t state) +{ + return 0; +} + +static int fsl_qspi_resume(struct platform_device *pdev) +{ + struct fsl_qspi *q = platform_get_drvdata(pdev); + + fsl_qspi_nor_setup(q); + fsl_qspi_set_map_addr(q); + fsl_qspi_nor_setup_last(q); + + return 0; +} + static struct platform_driver fsl_qspi_driver = { .driver = { .name = "fsl-quadspi", @@ -1067,6 +1083,8 @@ static struct platform_driver fsl_qspi_driver = { }, .probe = fsl_qspi_probe, .remove = fsl_qspi_remove, + .suspend = fsl_qspi_suspend, + .resume = fsl_qspi_resume, }; module_platform_driver(fsl_qspi_driver); |