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-rw-r--r--drivers/pinctrl/mediatek/pinctrl-mt6797.c77
1 files changed, 77 insertions, 0 deletions
diff --git a/drivers/pinctrl/mediatek/pinctrl-mt6797.c b/drivers/pinctrl/mediatek/pinctrl-mt6797.c
new file mode 100644
index 000000000..53f240491
--- /dev/null
+++ b/drivers/pinctrl/mediatek/pinctrl-mt6797.c
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Based on pinctrl-mt6765.c
+ *
+ * Copyright (C) 2018 MediaTek Inc.
+ *
+ * Author: ZH Chen <zh.chen@mediatek.com>
+ *
+ * Copyright (C) Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+ *
+ */
+
+#include "pinctrl-mtk-mt6797.h"
+#include "pinctrl-paris.h"
+
+/*
+ * MT6797 have multiple bases to program pin configuration listed as the below:
+ * gpio:0x10005000, iocfg[l]:0x10002000, iocfg[b]:0x10002400,
+ * iocfg[r]:0x10002800, iocfg[t]:0x10002C00.
+ * _i_base could be used to indicate what base the pin should be mapped into.
+ */
+
+static const struct mtk_pin_field_calc mt6797_pin_mode_range[] = {
+ PIN_FIELD(0, 261, 0x300, 0x10, 0, 4),
+};
+
+static const struct mtk_pin_field_calc mt6797_pin_dir_range[] = {
+ PIN_FIELD(0, 261, 0x0, 0x10, 0, 1),
+};
+
+static const struct mtk_pin_field_calc mt6797_pin_di_range[] = {
+ PIN_FIELD(0, 261, 0x200, 0x10, 0, 1),
+};
+
+static const struct mtk_pin_field_calc mt6797_pin_do_range[] = {
+ PIN_FIELD(0, 261, 0x100, 0x10, 0, 1),
+};
+
+static const struct mtk_pin_reg_calc mt6797_reg_cals[PINCTRL_PIN_REG_MAX] = {
+ [PINCTRL_PIN_REG_MODE] = MTK_RANGE(mt6797_pin_mode_range),
+ [PINCTRL_PIN_REG_DIR] = MTK_RANGE(mt6797_pin_dir_range),
+ [PINCTRL_PIN_REG_DI] = MTK_RANGE(mt6797_pin_di_range),
+ [PINCTRL_PIN_REG_DO] = MTK_RANGE(mt6797_pin_do_range),
+};
+
+static const char * const mt6797_pinctrl_register_base_names[] = {
+ "gpio", "iocfgl", "iocfgb", "iocfgr", "iocfgt",
+};
+
+static const struct mtk_pin_soc mt6797_data = {
+ .reg_cal = mt6797_reg_cals,
+ .pins = mtk_pins_mt6797,
+ .npins = ARRAY_SIZE(mtk_pins_mt6797),
+ .ngrps = ARRAY_SIZE(mtk_pins_mt6797),
+ .gpio_m = 0,
+ .base_names = mt6797_pinctrl_register_base_names,
+ .nbase_names = ARRAY_SIZE(mt6797_pinctrl_register_base_names),
+};
+
+static const struct of_device_id mt6797_pinctrl_of_match[] = {
+ { .compatible = "mediatek,mt6797-pinctrl", .data = &mt6797_data },
+ { }
+};
+
+static struct platform_driver mt6797_pinctrl_driver = {
+ .driver = {
+ .name = "mt6797-pinctrl",
+ .of_match_table = mt6797_pinctrl_of_match,
+ },
+ .probe = mtk_paris_pinctrl_probe,
+};
+
+static int __init mt6797_pinctrl_init(void)
+{
+ return platform_driver_register(&mt6797_pinctrl_driver);
+}
+arch_initcall(mt6797_pinctrl_init);