diff options
Diffstat (limited to 'drivers/spi/spi-s3c64xx.c')
| -rw-r--r-- | drivers/spi/spi-s3c64xx.c | 33 |
1 files changed, 13 insertions, 20 deletions
diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c index 1f2f7f8329f1..d8928d0592df 100644 --- a/drivers/spi/spi-s3c64xx.c +++ b/drivers/spi/spi-s3c64xx.c @@ -62,7 +62,7 @@ #define S3C64XX_SPI_CLKSEL_SRCMSK (3<<9) #define S3C64XX_SPI_CLKSEL_SRCSHFT 9 #define S3C64XX_SPI_ENCLK_ENABLE (1<<8) -#define S3C64XX_SPI_PSR_MASK 0xff +#define S3C64XX_SPI_PSR_MASK 0xff #define S3C64XX_SPI_MODE_CH_TSZ_BYTE (0<<29) #define S3C64XX_SPI_MODE_CH_TSZ_HALFWORD (1<<29) @@ -743,8 +743,7 @@ static int s3c64xx_spi_transfer_one_message(struct spi_master *master, sdd->regs + S3C64XX_SPI_SLAVE_SEL); if (status) { - dev_err(&spi->dev, "I/O Error: " - "rx-%d tx-%d res:rx-%c tx-%c len-%d\n", + dev_err(&spi->dev, "I/O Error: rx-%d tx-%d res:rx-%c tx-%c len-%d\n", xfer->rx_buf ? 1 : 0, xfer->tx_buf ? 1 : 0, (sdd->state & RXBUSY) ? 'f' : 'p', (sdd->state & TXBUSY) ? 'f' : 'p', @@ -799,7 +798,7 @@ static int s3c64xx_spi_prepare_transfer(struct spi_master *spi) /* Acquire DMA channels */ while (!acquire_dma(sdd)) - msleep(10); + usleep_range(10000, 11000); pm_runtime_get_sync(&sdd->pdev->dev); @@ -841,16 +840,14 @@ static struct s3c64xx_spi_csinfo *s3c64xx_get_slave_ctrldata( cs = kzalloc(sizeof(*cs), GFP_KERNEL); if (!cs) { - dev_err(&spi->dev, "could not allocate memory for controller" - " data\n"); + dev_err(&spi->dev, "could not allocate memory for controller data\n"); of_node_put(data_np); return ERR_PTR(-ENOMEM); } cs->line = of_get_named_gpio(data_np, "cs-gpio", 0); if (!gpio_is_valid(cs->line)) { - dev_err(&spi->dev, "chip select gpio is not specified or " - "invalid\n"); + dev_err(&spi->dev, "chip select gpio is not specified or invalid\n"); kfree(cs); of_node_put(data_np); return ERR_PTR(-EINVAL); @@ -1078,8 +1075,8 @@ static int s3c64xx_spi_get_dmares( if (!sdd->pdev->dev.of_node) { res = platform_get_resource(pdev, IORESOURCE_DMA, tx ? 0 : 1); if (!res) { - dev_err(&pdev->dev, "Unable to get SPI-%s dma " - "resource\n", chan_str); + dev_err(&pdev->dev, "Unable to get SPI-%s dma resource\n", + chan_str); return -ENXIO; } dma_data->dmach = res->start; @@ -1135,8 +1132,7 @@ static void s3c64xx_spi_dt_gpio_free(struct s3c64xx_spi_driver_data *sdd) gpio_free(sdd->gpios[idx]); } -static struct s3c64xx_spi_info * s3c64xx_spi_parse_dt( - struct device *dev) +static struct s3c64xx_spi_info *s3c64xx_spi_parse_dt(struct device *dev) { struct s3c64xx_spi_info *sci; u32 temp; @@ -1148,16 +1144,14 @@ static struct s3c64xx_spi_info * s3c64xx_spi_parse_dt( } if (of_property_read_u32(dev->of_node, "samsung,spi-src-clk", &temp)) { - dev_warn(dev, "spi bus clock parent not specified, using " - "clock at index 0 as parent\n"); + dev_warn(dev, "spi bus clock parent not specified, using clock at index 0 as parent\n"); sci->src_clk_nr = 0; } else { sci->src_clk_nr = temp; } if (of_property_read_u32(dev->of_node, "num-cs", &temp)) { - dev_warn(dev, "number of chip select lines not specified, " - "assuming 1 chip select line\n"); + dev_warn(dev, "number of chip select lines not specified, assuming 1 chip select line\n"); sci->num_cs = 1; } else { sci->num_cs = temp; @@ -1247,8 +1241,8 @@ static int __init s3c64xx_spi_probe(struct platform_device *pdev) if (pdev->dev.of_node) { ret = of_alias_get_id(pdev->dev.of_node, "spi"); if (ret < 0) { - dev_err(&pdev->dev, "failed to get alias id, " - "errno %d\n", ret); + dev_err(&pdev->dev, "failed to get alias id, errno %d\n", + ret); goto err0; } sdd->port_id = ret; @@ -1348,8 +1342,7 @@ static int __init s3c64xx_spi_probe(struct platform_device *pdev) goto err3; } - dev_dbg(&pdev->dev, "Samsung SoC SPI Driver loaded for Bus SPI-%d " - "with %d Slaves attached\n", + dev_dbg(&pdev->dev, "Samsung SoC SPI Driver loaded for Bus SPI-%d with %d Slaves attached\n", sdd->port_id, master->num_chipselect); dev_dbg(&pdev->dev, "\tIOmem=[0x%x-0x%x]\tDMA=[Rx-%d, Tx-%d]\n", mem_res->end, mem_res->start, |