diff options
Diffstat (limited to 'drivers/spi/omap2_mcspi.c')
| -rw-r--r-- | drivers/spi/omap2_mcspi.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/drivers/spi/omap2_mcspi.c b/drivers/spi/omap2_mcspi.c index 715c518b1b68..d8356af118a8 100644 --- a/drivers/spi/omap2_mcspi.c +++ b/drivers/spi/omap2_mcspi.c @@ -32,6 +32,7 @@ #include <linux/err.h> #include <linux/clk.h> #include <linux/io.h> +#include <linux/slab.h> #include <linux/spi/spi.h> @@ -578,6 +579,7 @@ static int omap2_mcspi_setup_transfer(struct spi_device *spi, struct spi_master *spi_cntrl; u32 l = 0, div = 0; u8 word_len = spi->bits_per_word; + u32 speed_hz = spi->max_speed_hz; mcspi = spi_master_get_devdata(spi->master); spi_cntrl = mcspi->master; @@ -587,9 +589,12 @@ static int omap2_mcspi_setup_transfer(struct spi_device *spi, cs->word_len = word_len; - if (spi->max_speed_hz) { + if (t && t->speed_hz) + speed_hz = t->speed_hz; + + if (speed_hz) { while (div <= 15 && (OMAP2_MCSPI_MAX_FREQ / (1 << div)) - > spi->max_speed_hz) + > speed_hz) div++; } else div = 15; @@ -751,11 +756,13 @@ static void omap2_mcspi_cleanup(struct spi_device *spi) mcspi = spi_master_get_devdata(spi->master); mcspi_dma = &mcspi->dma_channels[spi->chip_select]; - /* Unlink controller state from context save list */ - cs = spi->controller_state; - list_del(&cs->node); + if (spi->controller_state) { + /* Unlink controller state from context save list */ + cs = spi->controller_state; + list_del(&cs->node); - kfree(spi->controller_state); + kfree(spi->controller_state); + } if (mcspi_dma->dma_rx_channel != -1) { omap_free_dma(mcspi_dma->dma_rx_channel); |