diff options
Diffstat (limited to 'drivers/spi/spi-tegra114.c')
| -rw-r--r-- | drivers/spi/spi-tegra114.c | 27 |
1 files changed, 5 insertions, 22 deletions
diff --git a/drivers/spi/spi-tegra114.c b/drivers/spi/spi-tegra114.c index 413c71843492..400649595505 100644 --- a/drivers/spi/spi-tegra114.c +++ b/drivers/spi/spi-tegra114.c @@ -23,7 +23,6 @@ #include <linux/dma-mapping.h> #include <linux/dmapool.h> #include <linux/err.h> -#include <linux/init.h> #include <linux/interrupt.h> #include <linux/io.h> #include <linux/kernel.h> @@ -172,7 +171,6 @@ struct tegra_spi_data { void __iomem *base; phys_addr_t phys; unsigned irq; - u32 spi_max_frequency; u32 cur_speed; struct spi_device *cur_spi; @@ -761,11 +759,6 @@ static int tegra_spi_setup(struct spi_device *spi) spi->mode & SPI_CPHA ? "" : "~", spi->max_speed_hz); - BUG_ON(spi->chip_select >= MAX_CHIP_SELECT); - - /* Set speed to the spi max fequency if spi device has not set */ - spi->max_speed_hz = spi->max_speed_hz ? : tspi->spi_max_frequency; - ret = pm_runtime_get_sync(tspi->dev); if (ret < 0) { dev_err(tspi->dev, "pm runtime failed, e = %d\n", ret); @@ -853,8 +846,8 @@ complete_xfer: SPI_COMMAND1); tegra_spi_transfer_delay(xfer->delay_usecs); goto exit; - } else if (msg->transfers.prev == &xfer->transfer_list) { - /* This is the last transfer in message */ + } else if (list_is_last(&xfer->transfer_list, + &msg->transfers)) { if (xfer->cs_change) tspi->cs_control = spi; else { @@ -1019,16 +1012,6 @@ static irqreturn_t tegra_spi_isr(int irq, void *context_data) return IRQ_WAKE_THREAD; } -static void tegra_spi_parse_dt(struct platform_device *pdev, - struct tegra_spi_data *tspi) -{ - struct device_node *np = pdev->dev.of_node; - - if (of_property_read_u32(np, "spi-max-frequency", - &tspi->spi_max_frequency)) - tspi->spi_max_frequency = 25000000; /* 25MHz */ -} - static struct of_device_id tegra_spi_of_match[] = { { .compatible = "nvidia,tegra114-spi", }, {} @@ -1050,15 +1033,15 @@ static int tegra_spi_probe(struct platform_device *pdev) platform_set_drvdata(pdev, master); tspi = spi_master_get_devdata(master); - /* Parse DT */ - tegra_spi_parse_dt(pdev, tspi); + if (of_property_read_u32(pdev->dev.of_node, "spi-max-frequency", + &master->max_speed_hz)) + master->max_speed_hz = 25000000; /* 25MHz */ /* the spi->mode bits understood by this driver: */ master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH; master->setup = tegra_spi_setup; master->transfer_one_message = tegra_spi_transfer_one_message; master->num_chipselect = MAX_CHIP_SELECT; - master->bus_num = -1; master->auto_runtime_pm = true; tspi->master = master; |