diff options
Diffstat (limited to 'drivers/spi/spi-tegra20-slink.c')
| -rw-r--r-- | drivers/spi/spi-tegra20-slink.c | 45 |
1 files changed, 11 insertions, 34 deletions
diff --git a/drivers/spi/spi-tegra20-slink.c b/drivers/spi/spi-tegra20-slink.c index d353154..9c02470 100644 --- a/drivers/spi/spi-tegra20-slink.c +++ b/drivers/spi/spi-tegra20-slink.c @@ -34,7 +34,6 @@ #include <linux/of.h> #include <linux/of_device.h> #include <linux/spi/spi.h> -#include <linux/spi/spi-tegra.h> #include <linux/clk/tegra.h> #define SLINK_COMMAND 0x000 @@ -1032,29 +1031,18 @@ static irqreturn_t tegra_slink_isr(int irq, void *context_data) return IRQ_WAKE_THREAD; } -static struct tegra_spi_platform_data *tegra_slink_parse_dt( - struct platform_device *pdev) +static void tegra_slink_parse_dt(struct tegra_slink_data *tspi) { - struct tegra_spi_platform_data *pdata; - const unsigned int *prop; - struct device_node *np = pdev->dev.of_node; + struct device_node *np = tspi->dev->of_node; u32 of_dma[2]; - pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); - if (!pdata) { - dev_err(&pdev->dev, "Memory alloc for pdata failed\n"); - return NULL; - } - if (of_property_read_u32_array(np, "nvidia,dma-request-selector", of_dma, 2) >= 0) - pdata->dma_req_sel = of_dma[1]; + tspi->dma_req_sel = of_dma[1]; - prop = of_get_property(np, "spi-max-frequency", NULL); - if (prop) - pdata->spi_max_frequency = be32_to_cpup(prop); - - return pdata; + if (of_property_read_u32(np, "spi-max-frequency", + &tspi->spi_max_frequency)) + tspi->spi_max_frequency = 25000000; /* 25MHz */ } const struct tegra_slink_chip_data tegra30_spi_cdata = { @@ -1077,27 +1065,16 @@ static int tegra_slink_probe(struct platform_device *pdev) struct spi_master *master; struct tegra_slink_data *tspi; struct resource *r; - struct tegra_spi_platform_data *pdata = pdev->dev.platform_data; int ret, spi_irq; const struct tegra_slink_chip_data *cdata = NULL; const struct of_device_id *match; - match = of_match_device(of_match_ptr(tegra_slink_of_match), &pdev->dev); + match = of_match_device(tegra_slink_of_match, &pdev->dev); if (!match) { dev_err(&pdev->dev, "Error: No device match found\n"); return -ENODEV; } cdata = match->data; - if (!pdata && pdev->dev.of_node) - pdata = tegra_slink_parse_dt(pdev); - - if (!pdata) { - dev_err(&pdev->dev, "No platform data, exiting\n"); - return -ENODEV; - } - - if (!pdata->spi_max_frequency) - pdata->spi_max_frequency = 25000000; /* 25MHz */ master = spi_alloc_master(&pdev->dev, sizeof(*tspi)); if (!master) { @@ -1115,11 +1092,12 @@ static int tegra_slink_probe(struct platform_device *pdev) dev_set_drvdata(&pdev->dev, master); tspi = spi_master_get_devdata(master); tspi->master = master; - tspi->dma_req_sel = pdata->dma_req_sel; tspi->dev = &pdev->dev; tspi->chip_data = cdata; spin_lock_init(&tspi->lock); + tegra_slink_parse_dt(tspi); + r = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!r) { dev_err(&pdev->dev, "No IO memory resource\n"); @@ -1153,9 +1131,8 @@ static int tegra_slink_probe(struct platform_device *pdev) tspi->max_buf_size = SLINK_FIFO_DEPTH << 2; tspi->dma_buf_size = DEFAULT_SPI_DMA_BUF_LEN; - tspi->spi_max_frequency = pdata->spi_max_frequency; - if (pdata->dma_req_sel) { + if (tspi->dma_req_sel) { ret = tegra_slink_init_dma_param(tspi, true); if (ret < 0) { dev_err(&pdev->dev, "RxDma Init failed, err %d\n", ret); @@ -1298,7 +1275,7 @@ static struct platform_driver tegra_slink_driver = { .name = "spi-tegra-slink", .owner = THIS_MODULE, .pm = &slink_pm_ops, - .of_match_table = of_match_ptr(tegra_slink_of_match), + .of_match_table = tegra_slink_of_match, }, .probe = tegra_slink_probe, .remove = tegra_slink_remove, |