mips: gpio: mscc: Obsoleted gpio-mscc-bitbang-spi.c

With the new mscc_bb_spi.c driver, there is no longer use for the
gpio-mscc-bitbang-spi.c driver.

Signed-off-by: Lars Povlsen <lars.povlsen@microchip.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>

diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index aa55ff43c40b6d4fae74804e09fb34fa92cbbed5..14a14be91773be1ca1d3172c33cd9ccb447cabe9 100644 (file)
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -99,13 +99,6 @@ config LPC32XX_GPIO
        help
          Support for the LPC32XX GPIO driver.
 
-config MSCC_BITBANG_SPI_GPIO
-       bool "Microsemi bitbang spi GPIO driver"
-       depends on DM_GPIO && SOC_VCOREIII
-       help
-         Support controlling the GPIO used for SPI bitbang by software. Can
-         be used by the VCoreIII SoCs, but it was mainly useful for Luton.
-
 config MSCC_SGPIO
        bool "Microsemi Serial GPIO driver"
        depends on DM_GPIO && SOC_VCOREIII

diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index be2b3c792f5d5536d5339a9f7743276202e2b23d..7c479efe2d641a222d718ed8996e5e032d5d0e95 100644 (file)
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -59,5 +59,4 @@ obj-$(CONFIG_MSM_GPIO)                += msm_gpio.o
 obj-$(CONFIG_$(SPL_)PCF8575_GPIO)      += pcf8575_gpio.o
 obj-$(CONFIG_PM8916_GPIO)      += pm8916_gpio.o
 obj-$(CONFIG_MT7621_GPIO)      += mt7621_gpio.o
-obj-$(CONFIG_MSCC_BITBANG_SPI_GPIO)    += gpio-mscc-bitbang-spi.o
 obj-$(CONFIG_MSCC_SGPIO)       += mscc_sgpio.o

diff --git a/drivers/gpio/gpio-mscc-bitbang-spi.c b/drivers/gpio/gpio-mscc-bitbang-spi.c
deleted file mode 100644 (file)
index b675f90..0000000
--- a/drivers/gpio/gpio-mscc-bitbang-spi.c
+++ /dev/null
@@ -1,122 +0,0 @@
-// SPDX-License-Identifier: (GPL-2.0 OR MIT)
-/*
- * Microsemi SoCs pinctrl driver
- *
- * Author: <gregory.clement@bootlin.com>
- * License: Dual MIT/GPL
- * Copyright (c) 2018 Microsemi Corporation
- */
-
-#include <common.h>
-#include <asm-generic/gpio.h>
-#include <asm/io.h>
-#include <dm.h>
-#include <errno.h>
-
-enum {
-       SDI,
-       CS0,
-       CS1,
-       CS2,
-       CS3,
-       SDO,
-       SCK
-};
-
-static const int pinmap[] = { 0, 5, 6, 7, 8, 10, 12 };
-
-#define SW_SPI_CSn_OE   0x1E   /* bits 1 to 4 */
-#define SW_SPI_CS0_OE   BIT(1)
-#define SW_SPI_SDO_OE   BIT(9)
-#define SW_SPI_SCK_OE   BIT(11)
-#define SW_PIN_CTRL_MODE BIT(13)
-
-struct mscc_bb_spi_gpio {
-       void __iomem *regs;
-       u32 cache_val;
-};
-
-static int mscc_bb_spi_gpio_set(struct udevice *dev, unsigned oft, int val)
-{
-       struct mscc_bb_spi_gpio *gpio = dev_get_priv(dev);
-
-       if (val)
-               gpio->cache_val |= BIT(pinmap[oft]);
-       else
-               gpio->cache_val &= ~BIT(pinmap[oft]);
-
-       writel(gpio->cache_val, gpio->regs);
-
-       return 0;
-}
-
-static int mscc_bb_spi_gpio_direction_output(struct udevice *dev, unsigned oft,
-                                            int val)
-{
-       if (oft == 0) {
-               pr_err("SW_SPI_DSI can't be used as output\n");
-               return -ENOTSUPP;
-       }
-
-       mscc_bb_spi_gpio_set(dev, oft, val);
-
-       return 0;
-}
-
-static int mscc_bb_spi_gpio_direction_input(struct udevice *dev, unsigned oft)
-{
-       return 0;
-}
-
-static int mscc_bb_spi_gpio_get(struct udevice *dev, unsigned int oft)
-{
-       struct mscc_bb_spi_gpio *gpio = dev_get_priv(dev);
-       u32 val = readl(gpio->regs);
-
-       return !!(val & BIT(pinmap[oft]));
-}
-
-static const struct dm_gpio_ops mscc_bb_spi_gpio_ops = {
-       .direction_output       = mscc_bb_spi_gpio_direction_output,
-       .direction_input        = mscc_bb_spi_gpio_direction_input,
-       .set_value              = mscc_bb_spi_gpio_set,
-       .get_value              = mscc_bb_spi_gpio_get,
-};
-
-static int mscc_bb_spi_gpio_probe(struct udevice *dev)
-{
-       struct mscc_bb_spi_gpio *gpio = dev_get_priv(dev);
-       struct gpio_dev_priv *uc_priv = dev_get_uclass_priv(dev);
-
-       gpio->regs = dev_remap_addr(dev);
-       if (!gpio->regs)
-               return -EINVAL;
-
-       uc_priv->bank_name = dev->name;
-       uc_priv->gpio_count = ARRAY_SIZE(pinmap);
-       /*
-        * Enable software mode to control the SPI pin, enables the
-        * output mode for most of the pin and initialize the cache
-        * value in the same time
-        */
-
-       gpio->cache_val = SW_PIN_CTRL_MODE | SW_SPI_SCK_OE | SW_SPI_SDO_OE |
-           SW_SPI_CS0_OE;
-       writel(gpio->cache_val, gpio->regs);
-
-       return 0;
-}
-
-static const struct udevice_id mscc_bb_spi_gpio_ids[] = {
-       {.compatible = "mscc,spi-bitbang-gpio"},
-       {}
-};
-
-U_BOOT_DRIVER(gpio_mscc_bb_spi) = {
-       .name   = "gpio-mscc-spi-bitbang",
-       .id     = UCLASS_GPIO,
-       .ops    = &mscc_bb_spi_gpio_ops,
-       .probe  = mscc_bb_spi_gpio_probe,
-       .of_match = of_match_ptr(mscc_bb_spi_gpio_ids),
-       .priv_auto_alloc_size = sizeof(struct mscc_bb_spi_gpio),
-};