From 92c0e3bdc8a6baa9d35a1ee787a186cc8d7be12d Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 25 Jun 2020 22:14:22 +0200 Subject: [PATCH] spi: img-spfi: Convert to use GPIO descriptors This converts the IMG SPFI SPI driver to use GPIO descriptors as obtained from the core instead of GPIO numbers. The driver was already relying on the core code to look up the GPIO numbers from the device tree and allocate memory for storing state etc. By moving to use descriptors handled by the core we can delete the setup/cleanup functions and the device state handler that were only dealing with this. Signed-off-by: Linus Walleij Cc: Ionela Voinescu Cc: Sifan Naeem Link: https://lore.kernel.org/r/20200625201422.208640-1-linus.walleij@linaro.org Signed-off-by: Mark Brown --- drivers/spi/spi-img-spfi.c | 56 +------------------------------------- 1 file changed, 1 insertion(+), 55 deletions(-) diff --git a/drivers/spi/spi-img-spfi.c b/drivers/spi/spi-img-spfi.c index 8543f5ed1099f..b068537375d60 100644 --- a/drivers/spi/spi-img-spfi.c +++ b/drivers/spi/spi-img-spfi.c @@ -9,7 +9,6 @@ #include #include #include -#include #include #include #include @@ -102,10 +101,6 @@ struct img_spfi { bool rx_dma_busy; }; -struct img_spfi_device_data { - bool gpio_requested; -}; - static inline u32 spfi_readl(struct img_spfi *spfi, u32 reg) { return readl(spfi->regs + reg); @@ -442,54 +437,6 @@ static int img_spfi_unprepare(struct spi_master *master, return 0; } -static int img_spfi_setup(struct spi_device *spi) -{ - int ret = -EINVAL; - struct img_spfi_device_data *spfi_data = spi_get_ctldata(spi); - - if (!spfi_data) { - spfi_data = kzalloc(sizeof(*spfi_data), GFP_KERNEL); - if (!spfi_data) - return -ENOMEM; - spfi_data->gpio_requested = false; - spi_set_ctldata(spi, spfi_data); - } - if (!spfi_data->gpio_requested) { - ret = gpio_request_one(spi->cs_gpio, - (spi->mode & SPI_CS_HIGH) ? - GPIOF_OUT_INIT_LOW : GPIOF_OUT_INIT_HIGH, - dev_name(&spi->dev)); - if (ret) - dev_err(&spi->dev, "can't request chipselect gpio %d\n", - spi->cs_gpio); - else - spfi_data->gpio_requested = true; - } else { - if (gpio_is_valid(spi->cs_gpio)) { - int mode = ((spi->mode & SPI_CS_HIGH) ? - GPIOF_OUT_INIT_LOW : GPIOF_OUT_INIT_HIGH); - - ret = gpio_direction_output(spi->cs_gpio, mode); - if (ret) - dev_err(&spi->dev, "chipselect gpio %d setup failed (%d)\n", - spi->cs_gpio, ret); - } - } - return ret; -} - -static void img_spfi_cleanup(struct spi_device *spi) -{ - struct img_spfi_device_data *spfi_data = spi_get_ctldata(spi); - - if (spfi_data) { - if (spfi_data->gpio_requested) - gpio_free(spi->cs_gpio); - kfree(spfi_data); - spi_set_ctldata(spi, NULL); - } -} - static void img_spfi_config(struct spi_master *master, struct spi_device *spi, struct spi_transfer *xfer) { @@ -659,12 +606,11 @@ static int img_spfi_probe(struct platform_device *pdev) master->max_speed_hz = max_speed_hz; } - master->setup = img_spfi_setup; - master->cleanup = img_spfi_cleanup; master->transfer_one = img_spfi_transfer_one; master->prepare_message = img_spfi_prepare; master->unprepare_message = img_spfi_unprepare; master->handle_err = img_spfi_handle_err; + master->use_gpio_descriptors = true; spfi->tx_ch = dma_request_chan(spfi->dev, "tx"); if (IS_ERR(spfi->tx_ch)) { -- 2.39.5