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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2015-10-14 23:12:23 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-10-19 20:32:01 +0100 |
| commit | 1cc3f141f0cb5a822cdef30fb1d92ae6f4176bfa (patch) | |
| tree | 1d3bfb1afa2c139db80fcdd232f38ef841777911 /drivers/spi | |
| parent | d53c0ef319eb5ceb5a089ff3050a2e6808c9adb9 (diff) | |
| download | op-kernel-dev-1cc3f141f0cb5a822cdef30fb1d92ae6f4176bfa.zip op-kernel-dev-1cc3f141f0cb5a822cdef30fb1d92ae6f4176bfa.tar.gz | |
spi: dw: introduce spi_shutdown_chip()
This helper disables SPI controller and sets clock to 0.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-dw.c | 13 | ||||
| -rw-r--r-- | drivers/spi/spi-dw.h | 6 |
2 files changed, 12 insertions, 7 deletions
diff --git a/drivers/spi/spi-dw.c b/drivers/spi/spi-dw.c index c8e7715..a730c35 100644 --- a/drivers/spi/spi-dw.c +++ b/drivers/spi/spi-dw.c @@ -546,22 +546,21 @@ void dw_spi_remove_host(struct dw_spi *dws) if (dws->dma_ops && dws->dma_ops->dma_exit) dws->dma_ops->dma_exit(dws); - spi_enable_chip(dws, 0); - /* Disable clk */ - spi_set_clk(dws, 0); + + spi_shutdown_chip(dws); } EXPORT_SYMBOL_GPL(dw_spi_remove_host); int dw_spi_suspend_host(struct dw_spi *dws) { - int ret = 0; + int ret; ret = spi_master_suspend(dws->master); if (ret) return ret; - spi_enable_chip(dws, 0); - spi_set_clk(dws, 0); - return ret; + + spi_shutdown_chip(dws); + return 0; } EXPORT_SYMBOL_GPL(dw_spi_suspend_host); diff --git a/drivers/spi/spi-dw.h b/drivers/spi/spi-dw.h index b75ed32..35589a2 100644 --- a/drivers/spi/spi-dw.h +++ b/drivers/spi/spi-dw.h @@ -225,6 +225,12 @@ static inline void spi_reset_chip(struct dw_spi *dws) spi_enable_chip(dws, 1); } +static inline void spi_shutdown_chip(struct dw_spi *dws) +{ + spi_enable_chip(dws, 0); + spi_set_clk(dws, 0); +} + /* * Each SPI slave device to work with dw_api controller should * has such a structure claiming its working mode (poll or PIO/DMA), |
