diff options
Diffstat (limited to 'drivers/spi/spi-fsl-lpspi.c')
-rw-r--r-- | drivers/spi/spi-fsl-lpspi.c | 47 |
1 files changed, 3 insertions, 44 deletions
diff --git a/drivers/spi/spi-fsl-lpspi.c b/drivers/spi/spi-fsl-lpspi.c index 1552b28b9515..38b44446c947 100644 --- a/drivers/spi/spi-fsl-lpspi.c +++ b/drivers/spi/spi-fsl-lpspi.c @@ -11,7 +11,6 @@ #include <linux/dmaengine.h> #include <linux/dma-mapping.h> #include <linux/err.h> -#include <linux/gpio.h> #include <linux/interrupt.h> #include <linux/io.h> #include <linux/irq.h> @@ -19,11 +18,9 @@ #include <linux/module.h> #include <linux/of.h> #include <linux/of_device.h> -#include <linux/of_gpio.h> #include <linux/pinctrl/consumer.h> #include <linux/platform_device.h> #include <linux/platform_data/dma-imx.h> -#include <linux/platform_data/spi-imx.h> #include <linux/pm_runtime.h> #include <linux/slab.h> #include <linux/spi/spi.h> @@ -224,20 +221,6 @@ static int lpspi_unprepare_xfer_hardware(struct spi_controller *controller) return 0; } -static int fsl_lpspi_prepare_message(struct spi_controller *controller, - struct spi_message *msg) -{ - struct fsl_lpspi_data *fsl_lpspi = - spi_controller_get_devdata(controller); - struct spi_device *spi = msg->spi; - int gpio = fsl_lpspi->chipselect[spi->chip_select]; - - if (gpio_is_valid(gpio)) - gpio_direction_output(gpio, spi->mode & SPI_CS_HIGH ? 0 : 1); - - return 0; -} - static void fsl_lpspi_write_tx_fifo(struct fsl_lpspi_data *fsl_lpspi) { u8 txfifo_cnt; @@ -831,13 +814,10 @@ static int fsl_lpspi_init_rpm(struct fsl_lpspi_data *fsl_lpspi) static int fsl_lpspi_probe(struct platform_device *pdev) { - struct device_node *np = pdev->dev.of_node; struct fsl_lpspi_data *fsl_lpspi; struct spi_controller *controller; - struct spi_imx_master *lpspi_platform_info = - dev_get_platdata(&pdev->dev); struct resource *res; - int i, ret, irq; + int ret, irq; u32 temp; bool is_slave; @@ -867,6 +847,8 @@ static int fsl_lpspi_probe(struct platform_device *pdev) controller->dev.of_node = pdev->dev.of_node; controller->bus_num = pdev->id; controller->slave_abort = fsl_lpspi_slave_abort; + if (!fsl_lpspi->is_slave) + controller->use_gpio_descriptors = true; ret = devm_spi_register_controller(&pdev->dev, controller); if (ret < 0) { @@ -874,29 +856,6 @@ static int fsl_lpspi_probe(struct platform_device *pdev) goto out_controller_put; } - if (!fsl_lpspi->is_slave) { - for (i = 0; i < controller->num_chipselect; i++) { - int cs_gpio = of_get_named_gpio(np, "cs-gpios", i); - - if (!gpio_is_valid(cs_gpio) && lpspi_platform_info) - cs_gpio = lpspi_platform_info->chipselect[i]; - - fsl_lpspi->chipselect[i] = cs_gpio; - if (!gpio_is_valid(cs_gpio)) - continue; - - ret = devm_gpio_request(&pdev->dev, - fsl_lpspi->chipselect[i], - DRIVER_NAME); - if (ret) { - dev_err(&pdev->dev, "can't get cs gpios\n"); - goto out_controller_put; - } - } - controller->cs_gpios = fsl_lpspi->chipselect; - controller->prepare_message = fsl_lpspi_prepare_message; - } - init_completion(&fsl_lpspi->xfer_done); res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |