diff options
author | Yang Yingliang <yangyingliang@huawei.com> | 2023-08-07 15:40:56 +0300 |
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committer | Mark Brown <broonie@kernel.org> | 2023-08-14 15:10:57 +0300 |
commit | 20becf43e8ca3a9ff00ed24e19695347e0a2f0e7 (patch) | |
tree | ed441bb1cb8a5c3b39b7475ef1c5823add55b3f1 /drivers/spi/spi-gpio.c | |
parent | d32382ca5614614df0cbb91a1b7fab9c47bfef9b (diff) | |
download | linux-20becf43e8ca3a9ff00ed24e19695347e0a2f0e7.tar.xz |
spi: gpio: switch to use modern name
Change legacy name master to modern name host or controller.
No functional changed.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20230807124105.3429709-12-yangyingliang@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-gpio.c')
-rw-r--r-- | drivers/spi/spi-gpio.c | 72 |
1 files changed, 36 insertions, 36 deletions
diff --git a/drivers/spi/spi-gpio.c b/drivers/spi/spi-gpio.c index 8aa905e407a8..d8db4564b406 100644 --- a/drivers/spi/spi-gpio.c +++ b/drivers/spi/spi-gpio.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0-or-later /* - * SPI master driver using generic bitbanged GPIO + * SPI host driver using generic bitbanged GPIO * * Copyright (C) 2006,2008 David Brownell * Copyright (C) 2017 Linus Walleij @@ -17,7 +17,7 @@ /* - * This bitbanging SPI master driver should help make systems usable + * This bitbanging SPI host driver should help make systems usable * when a native hardware SPI engine is not available, perhaps because * its driver isn't yet working or because the I/O pins it requires * are used for other purposes. @@ -26,7 +26,7 @@ * * spi->controller_state ... reserved for bitbang framework code * - * spi->master->dev.driver_data ... points to spi_gpio->bitbang + * spi->controller->dev.driver_data ... points to spi_gpio->bitbang */ struct spi_gpio { @@ -77,7 +77,7 @@ spi_to_spi_gpio(const struct spi_device *spi) const struct spi_bitbang *bang; struct spi_gpio *spi_gpio; - bang = spi_master_get_devdata(spi->master); + bang = spi_controller_get_devdata(spi->controller); spi_gpio = container_of(bang, struct spi_gpio, bitbang); return spi_gpio; } @@ -180,7 +180,7 @@ static u32 spi_gpio_txrx_word_mode3(struct spi_device *spi, static u32 spi_gpio_spec_txrx_word_mode0(struct spi_device *spi, unsigned nsecs, u32 word, u8 bits, unsigned flags) { - flags = spi->master->flags; + flags = spi->controller->flags; if (unlikely(spi->mode & SPI_LSB_FIRST)) return bitbang_txrx_le_cpha0(spi, nsecs, 0, flags, word, bits); else @@ -190,7 +190,7 @@ static u32 spi_gpio_spec_txrx_word_mode0(struct spi_device *spi, static u32 spi_gpio_spec_txrx_word_mode1(struct spi_device *spi, unsigned nsecs, u32 word, u8 bits, unsigned flags) { - flags = spi->master->flags; + flags = spi->controller->flags; if (unlikely(spi->mode & SPI_LSB_FIRST)) return bitbang_txrx_le_cpha1(spi, nsecs, 0, flags, word, bits); else @@ -200,7 +200,7 @@ static u32 spi_gpio_spec_txrx_word_mode1(struct spi_device *spi, static u32 spi_gpio_spec_txrx_word_mode2(struct spi_device *spi, unsigned nsecs, u32 word, u8 bits, unsigned flags) { - flags = spi->master->flags; + flags = spi->controller->flags; if (unlikely(spi->mode & SPI_LSB_FIRST)) return bitbang_txrx_le_cpha0(spi, nsecs, 1, flags, word, bits); else @@ -210,7 +210,7 @@ static u32 spi_gpio_spec_txrx_word_mode2(struct spi_device *spi, static u32 spi_gpio_spec_txrx_word_mode3(struct spi_device *spi, unsigned nsecs, u32 word, u8 bits, unsigned flags) { - flags = spi->master->flags; + flags = spi->controller->flags; if (unlikely(spi->mode & SPI_LSB_FIRST)) return bitbang_txrx_le_cpha1(spi, nsecs, 1, flags, word, bits); else @@ -310,7 +310,7 @@ static void spi_gpio_cleanup(struct spi_device *spi) * On platforms which can do so, configure MISO with a weak pullup unless * there's an external pullup on that signal. That saves power by avoiding * floating signals. (A weak pulldown would save power too, but many - * drivers expect to see all-ones data as the no slave "response".) + * drivers expect to see all-ones data as the no target "response".) */ static int spi_gpio_request(struct device *dev, struct spi_gpio *spi_gpio) { @@ -334,27 +334,27 @@ static const struct of_device_id spi_gpio_dt_ids[] = { MODULE_DEVICE_TABLE(of, spi_gpio_dt_ids); static int spi_gpio_probe_dt(struct platform_device *pdev, - struct spi_master *master) + struct spi_controller *host) { - master->dev.of_node = pdev->dev.of_node; - master->use_gpio_descriptors = true; + host->dev.of_node = pdev->dev.of_node; + host->use_gpio_descriptors = true; return 0; } #else static inline int spi_gpio_probe_dt(struct platform_device *pdev, - struct spi_master *master) + struct spi_controller *host) { return 0; } #endif static int spi_gpio_probe_pdata(struct platform_device *pdev, - struct spi_master *master) + struct spi_controller *host) { struct device *dev = &pdev->dev; struct spi_gpio_platform_data *pdata = dev_get_platdata(dev); - struct spi_gpio *spi_gpio = spi_master_get_devdata(master); + struct spi_gpio *spi_gpio = spi_controller_get_devdata(host); int i; #ifdef GENERIC_BITBANG @@ -362,18 +362,18 @@ static int spi_gpio_probe_pdata(struct platform_device *pdev, return -ENODEV; #endif /* - * The master needs to think there is a chipselect even if not + * The host needs to think there is a chipselect even if not * connected */ - master->num_chipselect = pdata->num_chipselect ?: 1; + host->num_chipselect = pdata->num_chipselect ?: 1; - spi_gpio->cs_gpios = devm_kcalloc(dev, master->num_chipselect, + spi_gpio->cs_gpios = devm_kcalloc(dev, host->num_chipselect, sizeof(*spi_gpio->cs_gpios), GFP_KERNEL); if (!spi_gpio->cs_gpios) return -ENOMEM; - for (i = 0; i < master->num_chipselect; i++) { + for (i = 0; i < host->num_chipselect; i++) { spi_gpio->cs_gpios[i] = devm_gpiod_get_index(dev, "cs", i, GPIOD_OUT_HIGH); if (IS_ERR(spi_gpio->cs_gpios[i])) @@ -386,31 +386,31 @@ static int spi_gpio_probe_pdata(struct platform_device *pdev, static int spi_gpio_probe(struct platform_device *pdev) { int status; - struct spi_master *master; + struct spi_controller *host; struct spi_gpio *spi_gpio; struct device *dev = &pdev->dev; struct spi_bitbang *bb; - master = devm_spi_alloc_master(dev, sizeof(*spi_gpio)); - if (!master) + host = devm_spi_alloc_host(dev, sizeof(*spi_gpio)); + if (!host) return -ENOMEM; if (pdev->dev.of_node) - status = spi_gpio_probe_dt(pdev, master); + status = spi_gpio_probe_dt(pdev, host); else - status = spi_gpio_probe_pdata(pdev, master); + status = spi_gpio_probe_pdata(pdev, host); if (status) return status; - spi_gpio = spi_master_get_devdata(master); + spi_gpio = spi_controller_get_devdata(host); status = spi_gpio_request(dev, spi_gpio); if (status) return status; - master->bits_per_word_mask = SPI_BPW_RANGE_MASK(1, 32); - master->mode_bits = SPI_3WIRE | SPI_3WIRE_HIZ | SPI_CPHA | SPI_CPOL | + host->bits_per_word_mask = SPI_BPW_RANGE_MASK(1, 32); + host->mode_bits = SPI_3WIRE | SPI_3WIRE_HIZ | SPI_CPHA | SPI_CPOL | SPI_CS_HIGH | SPI_LSB_FIRST; if (!spi_gpio->mosi) { /* HW configuration without MOSI pin @@ -419,25 +419,25 @@ static int spi_gpio_probe(struct platform_device *pdev) * a MOSI pin connected the host can still do RX by * changing the direction of the line. */ - master->flags = SPI_CONTROLLER_NO_TX; + host->flags = SPI_CONTROLLER_NO_TX; } - master->bus_num = pdev->id; - master->setup = spi_gpio_setup; - master->cleanup = spi_gpio_cleanup; + host->bus_num = pdev->id; + host->setup = spi_gpio_setup; + host->cleanup = spi_gpio_cleanup; bb = &spi_gpio->bitbang; - bb->master = master; + bb->master = host; /* * There is some additional business, apart from driving the CS GPIO * line, that we need to do on selection. This makes the local * callback for chipselect always get called. */ - master->flags |= SPI_CONTROLLER_GPIO_SS; + host->flags |= SPI_CONTROLLER_GPIO_SS; bb->chipselect = spi_gpio_chipselect; bb->set_line_direction = spi_gpio_set_direction; - if (master->flags & SPI_CONTROLLER_NO_TX) { + if (host->flags & SPI_CONTROLLER_NO_TX) { bb->txrx_word[SPI_MODE_0] = spi_gpio_spec_txrx_word_mode0; bb->txrx_word[SPI_MODE_1] = spi_gpio_spec_txrx_word_mode1; bb->txrx_word[SPI_MODE_2] = spi_gpio_spec_txrx_word_mode2; @@ -454,7 +454,7 @@ static int spi_gpio_probe(struct platform_device *pdev) if (status) return status; - return devm_spi_register_master(&pdev->dev, master); + return devm_spi_register_controller(&pdev->dev, host); } MODULE_ALIAS("platform:" DRIVER_NAME); @@ -468,6 +468,6 @@ static struct platform_driver spi_gpio_driver = { }; module_platform_driver(spi_gpio_driver); -MODULE_DESCRIPTION("SPI master driver using generic bitbanged GPIO "); +MODULE_DESCRIPTION("SPI host driver using generic bitbanged GPIO "); MODULE_AUTHOR("David Brownell"); MODULE_LICENSE("GPL"); |