diff options
| -rw-r--r-- | drivers/spi/spi-stm32.c | 47 |
1 files changed, 3 insertions, 44 deletions
diff --git a/drivers/spi/spi-stm32.c b/drivers/spi/spi-stm32.c index b222ce8d083e..7d75632c4151 100644 --- a/drivers/spi/spi-stm32.c +++ b/drivers/spi/spi-stm32.c @@ -9,7 +9,6 @@ #include <linux/clk.h> #include <linux/delay.h> #include <linux/dmaengine.h> -#include <linux/gpio.h> #include <linux/interrupt.h> #include <linux/iopoll.h> #include <linux/module.h> @@ -974,29 +973,6 @@ static irqreturn_t stm32h7_spi_irq_thread(int irq, void *dev_id) } /** - * stm32_spi_setup - setup device chip select - */ -static int stm32_spi_setup(struct spi_device *spi_dev) -{ - int ret = 0; - - if (!gpio_is_valid(spi_dev->cs_gpio)) { - dev_err(&spi_dev->dev, "%d is not a valid gpio\n", - spi_dev->cs_gpio); - return -EINVAL; - } - - dev_dbg(&spi_dev->dev, "%s: set gpio%d output %s\n", __func__, - spi_dev->cs_gpio, - (spi_dev->mode & SPI_CS_HIGH) ? "low" : "high"); - - ret = gpio_direction_output(spi_dev->cs_gpio, - !(spi_dev->mode & SPI_CS_HIGH)); - - return ret; -} - -/** * stm32_spi_prepare_msg - set up the controller to transfer a single message */ static int stm32_spi_prepare_msg(struct spi_master *master, @@ -1810,7 +1786,7 @@ static int stm32_spi_probe(struct platform_device *pdev) struct spi_master *master; struct stm32_spi *spi; struct resource *res; - int i, ret; + int ret; master = spi_alloc_master(&pdev->dev, sizeof(struct stm32_spi)); if (!master) { @@ -1898,7 +1874,7 @@ static int stm32_spi_probe(struct platform_device *pdev) master->bits_per_word_mask = spi->cfg->get_bpw_mask(spi); master->max_speed_hz = spi->clk_rate / spi->cfg->baud_rate_div_min; master->min_speed_hz = spi->clk_rate / spi->cfg->baud_rate_div_max; - master->setup = stm32_spi_setup; + master->use_gpio_descriptors = true; master->prepare_message = stm32_spi_prepare_msg; master->transfer_one = stm32_spi_transfer_one; master->unprepare_message = stm32_spi_unprepare_msg; @@ -1928,29 +1904,12 @@ static int stm32_spi_probe(struct platform_device *pdev) goto err_dma_release; } - if (!master->cs_gpios) { + if (!master->cs_gpiods) { dev_err(&pdev->dev, "no CS gpios available\n"); ret = -EINVAL; goto err_dma_release; } - for (i = 0; i < master->num_chipselect; i++) { - if (!gpio_is_valid(master->cs_gpios[i])) { - dev_err(&pdev->dev, "%i is not a valid gpio\n", - master->cs_gpios[i]); - ret = -EINVAL; - goto err_dma_release; - } - - ret = devm_gpio_request(&pdev->dev, master->cs_gpios[i], - DRIVER_NAME); - if (ret) { - dev_err(&pdev->dev, "can't get CS gpio %i\n", - master->cs_gpios[i]); - goto err_dma_release; - } - } - dev_info(&pdev->dev, "driver initialized\n"); return 0; |