diff options
| author | Hisashi Nakamura <hisashi.nakamura.ak@renesas.com> | 2014-12-15 23:01:11 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-01-16 06:59:56 -0800 |
| commit | f34d67febf374055af71fdcc1f90f49a91ebfea7 (patch) | |
| tree | 74fc8c7e29fac0ff69a3cc4ecbeddf7409e25254 | |
| parent | e8ff14951e0c852eec6c683436dd4b2d6a5f64a4 (diff) | |
spi: sh-msiof: Add runtime PM lock in initializing
commit 015760563ec77bf17cec712fa94afdf53b285287 upstream.
SH-MSIOF driver is enabled autosuspend API of spi framework.
But autosuspend framework doesn't work during initializing.
So runtime PM lock is added in SH-MSIOF driver initializing.
Fixes: e2a0ba547ba31c (spi: sh-msiof: Convert to spi core auto_runtime_pm framework)
Signed-off-by: Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>
Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/spi/spi-sh-msiof.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/spi/spi-sh-msiof.c b/drivers/spi/spi-sh-msiof.c index 3f365402fcc0..14052936b1c5 100644 --- a/drivers/spi/spi-sh-msiof.c +++ b/drivers/spi/spi-sh-msiof.c @@ -480,6 +480,8 @@ static int sh_msiof_spi_setup(struct spi_device *spi) struct device_node *np = spi->master->dev.of_node; struct sh_msiof_spi_priv *p = spi_master_get_devdata(spi->master); + pm_runtime_get_sync(&p->pdev->dev); + if (!np) { /* * Use spi->controller_data for CS (same strategy as spi_gpio), @@ -498,6 +500,9 @@ static int sh_msiof_spi_setup(struct spi_device *spi) if (spi->cs_gpio >= 0) gpio_set_value(spi->cs_gpio, !(spi->mode & SPI_CS_HIGH)); + + pm_runtime_put_sync(&p->pdev->dev); + return 0; } |