diff options
Diffstat (limited to 'drivers/net/dsa/microchip/ksz8795_spi.c')
| -rw-r--r-- | drivers/net/dsa/microchip/ksz8795_spi.c | 142 |
1 files changed, 0 insertions, 142 deletions
diff --git a/drivers/net/dsa/microchip/ksz8795_spi.c b/drivers/net/dsa/microchip/ksz8795_spi.c deleted file mode 100644 index 866767b70d65..000000000000 --- a/drivers/net/dsa/microchip/ksz8795_spi.c +++ /dev/null @@ -1,142 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * Microchip KSZ8795 series register access through SPI - * - * Copyright (C) 2017 Microchip Technology Inc. - * Tristram Ha <Tristram.Ha@microchip.com> - */ - -#include <asm/unaligned.h> - -#include <linux/delay.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/regmap.h> -#include <linux/spi/spi.h> - -#include "ksz8.h" -#include "ksz_common.h" - -#define KSZ8795_SPI_ADDR_SHIFT 12 -#define KSZ8795_SPI_ADDR_ALIGN 3 -#define KSZ8795_SPI_TURNAROUND_SHIFT 1 - -#define KSZ8863_SPI_ADDR_SHIFT 8 -#define KSZ8863_SPI_ADDR_ALIGN 8 -#define KSZ8863_SPI_TURNAROUND_SHIFT 0 - -KSZ_REGMAP_TABLE(ksz8795, 16, KSZ8795_SPI_ADDR_SHIFT, - KSZ8795_SPI_TURNAROUND_SHIFT, KSZ8795_SPI_ADDR_ALIGN); - -KSZ_REGMAP_TABLE(ksz8863, 16, KSZ8863_SPI_ADDR_SHIFT, - KSZ8863_SPI_TURNAROUND_SHIFT, KSZ8863_SPI_ADDR_ALIGN); - -static int ksz8795_spi_probe(struct spi_device *spi) -{ - const struct regmap_config *regmap_config; - struct device *ddev = &spi->dev; - struct regmap_config rc; - struct ksz_device *dev; - struct ksz8 *ksz8; - int i, ret = 0; - - ksz8 = devm_kzalloc(&spi->dev, sizeof(struct ksz8), GFP_KERNEL); - if (!ksz8) - return -ENOMEM; - - ksz8->priv = spi; - - dev = ksz_switch_alloc(&spi->dev, ksz8); - if (!dev) - return -ENOMEM; - - regmap_config = device_get_match_data(ddev); - if (!regmap_config) - return -EINVAL; - - for (i = 0; i < ARRAY_SIZE(ksz8795_regmap_config); i++) { - rc = regmap_config[i]; - rc.lock_arg = &dev->regmap_mutex; - dev->regmap[i] = devm_regmap_init_spi(spi, &rc); - if (IS_ERR(dev->regmap[i])) { - ret = PTR_ERR(dev->regmap[i]); - dev_err(&spi->dev, - "Failed to initialize regmap%i: %d\n", - regmap_config[i].val_bits, ret); - return ret; - } - } - - if (spi->dev.platform_data) - dev->pdata = spi->dev.platform_data; - - /* setup spi */ - spi->mode = SPI_MODE_3; - ret = spi_setup(spi); - if (ret) - return ret; - - ret = ksz8_switch_register(dev); - - /* Main DSA driver may not be started yet. */ - if (ret) - return ret; - - spi_set_drvdata(spi, dev); - - return 0; -} - -static int ksz8795_spi_remove(struct spi_device *spi) -{ - struct ksz_device *dev = spi_get_drvdata(spi); - - if (dev) - ksz_switch_remove(dev); - - spi_set_drvdata(spi, NULL); - - return 0; -} - -static void ksz8795_spi_shutdown(struct spi_device *spi) -{ - struct ksz_device *dev = spi_get_drvdata(spi); - - if (!dev) - return; - - if (dev->dev_ops->shutdown) - dev->dev_ops->shutdown(dev); - - dsa_switch_shutdown(dev->ds); - - spi_set_drvdata(spi, NULL); -} - -static const struct of_device_id ksz8795_dt_ids[] = { - { .compatible = "microchip,ksz8765", .data = &ksz8795_regmap_config }, - { .compatible = "microchip,ksz8794", .data = &ksz8795_regmap_config }, - { .compatible = "microchip,ksz8795", .data = &ksz8795_regmap_config }, - { .compatible = "microchip,ksz8863", .data = &ksz8863_regmap_config }, - { .compatible = "microchip,ksz8873", .data = &ksz8863_regmap_config }, - {}, -}; -MODULE_DEVICE_TABLE(of, ksz8795_dt_ids); - -static struct spi_driver ksz8795_spi_driver = { - .driver = { - .name = "ksz8795-switch", - .owner = THIS_MODULE, - .of_match_table = of_match_ptr(ksz8795_dt_ids), - }, - .probe = ksz8795_spi_probe, - .remove = ksz8795_spi_remove, - .shutdown = ksz8795_spi_shutdown, -}; - -module_spi_driver(ksz8795_spi_driver); - -MODULE_AUTHOR("Tristram Ha <Tristram.Ha@microchip.com>"); -MODULE_DESCRIPTION("Microchip KSZ8795 Series Switch SPI Driver"); -MODULE_LICENSE("GPL"); |