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spi: sh-msiof: Add runtime PM lock in initializing

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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: e2a0ba547b (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>
Cc: stable@vger.kernel.org
This commit is contained in:
Hisashi Nakamura 2014-12-15 23:01:11 +09:00 committed by Mark Brown
parent 0e647037fe
commit 015760563e
1 changed files with 5 additions and 0 deletions
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5
drivers/spi/spi-sh-msiof.c
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@ -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;
}