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| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-09-23 12:33:14 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-09-23 12:33:14 -0300 |
| commit | a700f2d8e79ff80041078f160fe1edccf89b0c66 (patch) | |
| tree | 070bc692c19c5980c081222a6f7223869b1560f3 /drivers/spi/spi-omap2-mcspi.c | |
| parent | d5ad8b932c22e2790c2b27351116de96603df63a (diff) | |
Linux-libre 4.2.1-gnupck-4.2.1-gnu
Diffstat (limited to 'drivers/spi/spi-omap2-mcspi.c')
| -rw-r--r-- | drivers/spi/spi-omap2-mcspi.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c index 586738412..3d09e0b69 100644 --- a/drivers/spi/spi-omap2-mcspi.c +++ b/drivers/spi/spi-omap2-mcspi.c @@ -245,6 +245,7 @@ static void omap2_mcspi_set_enable(const struct spi_device *spi, int enable) static void omap2_mcspi_set_cs(struct spi_device *spi, bool enable) { + struct omap2_mcspi *mcspi = spi_master_get_devdata(spi->master); u32 l; /* The controller handles the inverted chip selects @@ -255,6 +256,12 @@ static void omap2_mcspi_set_cs(struct spi_device *spi, bool enable) enable = !enable; if (spi->controller_state) { + int err = pm_runtime_get_sync(mcspi->dev); + if (err < 0) { + dev_err(mcspi->dev, "failed to get sync: %d\n", err); + return; + } + l = mcspi_cached_chconf0(spi); if (enable) @@ -263,6 +270,9 @@ static void omap2_mcspi_set_cs(struct spi_device *spi, bool enable) l |= OMAP2_MCSPI_CHCONF_FORCE; mcspi_write_chconf0(spi, l); + + pm_runtime_mark_last_busy(mcspi->dev); + pm_runtime_put_autosuspend(mcspi->dev); } } |