pinctrl: ralink: move to mediatek as mtmips

This platform from Ralink was acquired by MediaTek in 2011. Then, MediaTek
introduced new SoCs which utilise this platform. Move the driver to
mediatek pinctrl directory. Rename the ralink core driver to mtmips.

Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Link: https://lore.kernel.org/r/20230317213011.13656-5-arinc.unal@arinc9.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 61 insertions, 0 deletions

diff --git a/drivers/pinctrl/mediatek/pinctrl-rt2880.c b/drivers/pinctrl/mediatek/pinctrl-rt2880.c
new file mode 100644
index 000000000000..e0366721a515
--- /dev/null
+++ b/drivers/pinctrl/mediatek/pinctrl-rt2880.c
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <linux/bitops.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+#include "pinctrl-mtmips.h"
+
+#define RT2880_GPIO_MODE_I2C		BIT(0)
+#define RT2880_GPIO_MODE_UART0		BIT(1)
+#define RT2880_GPIO_MODE_SPI		BIT(2)
+#define RT2880_GPIO_MODE_UART1		BIT(3)
+#define RT2880_GPIO_MODE_JTAG		BIT(4)
+#define RT2880_GPIO_MODE_MDIO		BIT(5)
+#define RT2880_GPIO_MODE_SDRAM		BIT(6)
+#define RT2880_GPIO_MODE_PCI		BIT(7)
+
+static struct mtmips_pmx_func i2c_grp[] = { FUNC("i2c", 0, 1, 2) };
+static struct mtmips_pmx_func spi_grp[] = { FUNC("spi", 0, 3, 4) };
+static struct mtmips_pmx_func uartlite_grp[] = { FUNC("uartlite", 0, 7, 8) };
+static struct mtmips_pmx_func jtag_grp[] = { FUNC("jtag", 0, 17, 5) };
+static struct mtmips_pmx_func mdio_grp[] = { FUNC("mdio", 0, 22, 2) };
+static struct mtmips_pmx_func sdram_grp[] = { FUNC("sdram", 0, 24, 16) };
+static struct mtmips_pmx_func pci_grp[] = { FUNC("pci", 0, 40, 32) };
+
+static struct mtmips_pmx_group rt2880_pinmux_data_act[] = {
+	GRP("i2c", i2c_grp, 1, RT2880_GPIO_MODE_I2C),
+	GRP("spi", spi_grp, 1, RT2880_GPIO_MODE_SPI),
+	GRP("uartlite", uartlite_grp, 1, RT2880_GPIO_MODE_UART0),
+	GRP("jtag", jtag_grp, 1, RT2880_GPIO_MODE_JTAG),
+	GRP("mdio", mdio_grp, 1, RT2880_GPIO_MODE_MDIO),
+	GRP("sdram", sdram_grp, 1, RT2880_GPIO_MODE_SDRAM),
+	GRP("pci", pci_grp, 1, RT2880_GPIO_MODE_PCI),
+	{ 0 }
+};
+
+static int rt2880_pinctrl_probe(struct platform_device *pdev)
+{
+	return mtmips_pinctrl_init(pdev, rt2880_pinmux_data_act);
+}
+
+static const struct of_device_id rt2880_pinctrl_match[] = {
+	{ .compatible = "ralink,rt2880-pinctrl" },
+	{ .compatible = "ralink,rt2880-pinmux" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, rt2880_pinctrl_match);
+
+static struct platform_driver rt2880_pinctrl_driver = {
+	.probe = rt2880_pinctrl_probe,
+	.driver = {
+		.name = "rt2880-pinctrl",
+		.of_match_table = rt2880_pinctrl_match,
+	},
+};
+
+static int __init rt2880_pinctrl_init(void)
+{
+	return platform_driver_register(&rt2880_pinctrl_driver);
+}
+core_initcall_sync(rt2880_pinctrl_init);