diff options
| author | Jarkko Nikula <jarkko.nikula@linux.intel.com> | 2015-09-15 16:26:28 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-09-17 20:36:15 +0300 |
| commit | b69d42b5c44bcfc1c73fe185d4644487f1bd3193 (patch) | |
| tree | 430041fa2efbd65691213794c456278fe0fbc1ae /drivers/spi | |
| parent | 196b0e2cf2373f43d7b0e8c1a63e9d528c06e1df (diff) | |
| download | linux-b69d42b5c44bcfc1c73fe185d4644487f1bd3193.tar.xz | |
spi: pxa2xx: Remove cr0 variable from struct chip_data
There hasn't been need to carry chip->cr0 after SPI core started to
validate speed_hz and bits_per_word transfer parameters. That effectively
caused that pump_transfers() always recalculated it and practically
chip->cr0 is used locally in setup() for debug prints only.
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-pxa2xx.c | 10 | ||||
| -rw-r--r-- | drivers/spi/spi-pxa2xx.h | 1 |
2 files changed, 4 insertions, 7 deletions
diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c index ebafd537b59f..a25bc1d4bf7f 100644 --- a/drivers/spi/spi-pxa2xx.c +++ b/drivers/spi/spi-pxa2xx.c @@ -1101,6 +1101,7 @@ static int setup(struct spi_device *spi) struct driver_data *drv_data = spi_master_get_devdata(spi->master); unsigned int clk_div; uint tx_thres, tx_hi_thres, rx_thres; + u32 cr0; switch (drv_data->ssp_type) { case QUARK_X1000_SSP: @@ -1193,8 +1194,6 @@ static int setup(struct spi_device *spi) clk_div = pxa2xx_ssp_get_clk_div(drv_data, chip, spi->max_speed_hz); - chip->cr0 = pxa2xx_configure_sscr0(drv_data, clk_div, - spi->bits_per_word); switch (drv_data->ssp_type) { case QUARK_X1000_SSP: chip->threshold = (QUARK_X1000_SSCR1_RxTresh(rx_thres) @@ -1216,15 +1215,16 @@ static int setup(struct spi_device *spi) chip->cr1 |= SSCR1_LBM; /* NOTE: PXA25x_SSP _could_ use external clocking ... */ + cr0 = pxa2xx_configure_sscr0(drv_data, clk_div, spi->bits_per_word); if (!pxa25x_ssp_comp(drv_data)) dev_dbg(&spi->dev, "%ld Hz actual, %s\n", drv_data->max_clk_rate - / (1 + ((chip->cr0 & SSCR0_SCR(0xfff)) >> 8)), + / (1 + ((cr0 & SSCR0_SCR(0xfff)) >> 8)), chip->enable_dma ? "DMA" : "PIO"); else dev_dbg(&spi->dev, "%ld Hz actual, %s\n", drv_data->max_clk_rate / 2 - / (1 + ((chip->cr0 & SSCR0_SCR(0x0ff)) >> 8)), + / (1 + ((cr0 & SSCR0_SCR(0x0ff)) >> 8)), chip->enable_dma ? "DMA" : "PIO"); if (spi->bits_per_word <= 8) { @@ -1236,8 +1236,6 @@ static int setup(struct spi_device *spi) chip->read = u16_reader; chip->write = u16_writer; } else if (spi->bits_per_word <= 32) { - if (!is_quark_x1000_ssp(drv_data)) - chip->cr0 |= SSCR0_EDSS; chip->n_bytes = 4; chip->read = u32_reader; chip->write = u32_writer; diff --git a/drivers/spi/spi-pxa2xx.h b/drivers/spi/spi-pxa2xx.h index 0875e985b90d..b91bda26bfa8 100644 --- a/drivers/spi/spi-pxa2xx.h +++ b/drivers/spi/spi-pxa2xx.h @@ -86,7 +86,6 @@ struct driver_data { }; struct chip_data { - u32 cr0; u32 cr1; u32 dds_rate; u32 psp; |