Adding upstream version 5.10.209.upstream/5.10.209upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 319 insertions, 0 deletions

diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.h b/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.h
new file mode 100644
index 000000000..e2aae285b
--- /dev/null
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.h
@@ -0,0 +1,319 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2018 MediaTek Inc.
+ *
+ * Author: Sean Wang <sean.wang@mediatek.com>
+ *
+ */
+
+#ifndef __PINCTRL_MTK_COMMON_V2_H
+#define __PINCTRL_MTK_COMMON_V2_H
+
+#include <linux/gpio/driver.h>
+
+#define MTK_INPUT      0
+#define MTK_OUTPUT     1
+#define MTK_DISABLE    0
+#define MTK_ENABLE     1
+#define MTK_PULLDOWN   0
+#define MTK_PULLUP     1
+
+#define EINT_NA	U16_MAX
+#define NO_EINT_SUPPORT	EINT_NA
+
+#define PIN_FIELD_CALC(_s_pin, _e_pin, _i_base, _s_addr, _x_addrs,      \
+		       _s_bit, _x_bits, _sz_reg, _fixed) {		\
+		.s_pin = _s_pin,					\
+		.e_pin = _e_pin,					\
+		.i_base = _i_base,					\
+		.s_addr = _s_addr,					\
+		.x_addrs = _x_addrs,					\
+		.s_bit = _s_bit,					\
+		.x_bits = _x_bits,					\
+		.sz_reg = _sz_reg,					\
+		.fixed = _fixed,					\
+	}
+
+#define PIN_FIELD(_s_pin, _e_pin, _s_addr, _x_addrs, _s_bit, _x_bits)	\
+	PIN_FIELD_CALC(_s_pin, _e_pin, 0, _s_addr, _x_addrs, _s_bit,	\
+		       _x_bits, 32, 0)
+
+#define PINS_FIELD(_s_pin, _e_pin, _s_addr, _x_addrs, _s_bit, _x_bits)	\
+	PIN_FIELD_CALC(_s_pin, _e_pin, 0, _s_addr, _x_addrs, _s_bit,	\
+		       _x_bits, 32, 1)
+
+/* List these attributes which could be modified for the pin */
+enum {
+	PINCTRL_PIN_REG_MODE,
+	PINCTRL_PIN_REG_DIR,
+	PINCTRL_PIN_REG_DI,
+	PINCTRL_PIN_REG_DO,
+	PINCTRL_PIN_REG_SR,
+	PINCTRL_PIN_REG_SMT,
+	PINCTRL_PIN_REG_PD,
+	PINCTRL_PIN_REG_PU,
+	PINCTRL_PIN_REG_E4,
+	PINCTRL_PIN_REG_E8,
+	PINCTRL_PIN_REG_TDSEL,
+	PINCTRL_PIN_REG_RDSEL,
+	PINCTRL_PIN_REG_DRV,
+	PINCTRL_PIN_REG_PUPD,
+	PINCTRL_PIN_REG_R0,
+	PINCTRL_PIN_REG_R1,
+	PINCTRL_PIN_REG_IES,
+	PINCTRL_PIN_REG_PULLEN,
+	PINCTRL_PIN_REG_PULLSEL,
+	PINCTRL_PIN_REG_DRV_EN,
+	PINCTRL_PIN_REG_DRV_E0,
+	PINCTRL_PIN_REG_DRV_E1,
+	PINCTRL_PIN_REG_MAX,
+};
+
+/* Group the pins by the driving current */
+enum {
+	DRV_FIXED,
+	DRV_GRP0,
+	DRV_GRP1,
+	DRV_GRP2,
+	DRV_GRP3,
+	DRV_GRP4,
+	DRV_GRP_MAX,
+};
+
+static const char * const mtk_default_register_base_names[] __maybe_unused = {
+	"base",
+};
+
+/* struct mtk_pin_field - the structure that holds the information of the field
+ *			  used to describe the attribute for the pin
+ * @base:		the index pointing to the entry in base address list
+ * @offset:		the register offset relative to the base address
+ * @mask:		the mask used to filter out the field from the register
+ * @bitpos:		the start bit relative to the register
+ * @next:		the indication that the field would be extended to the
+			next register
+ */
+struct mtk_pin_field {
+	u8  index;
+	u32 offset;
+	u32 mask;
+	u8  bitpos;
+	u8  next;
+};
+
+/* struct mtk_pin_field_calc - the structure that holds the range providing
+ *			       the guide used to look up the relevant field
+ * @s_pin:		the start pin within the range
+ * @e_pin:		the end pin within the range
+ * @i_base:		the index pointing to the entry in base address list
+ * @s_addr:		the start address for the range
+ * @x_addrs:		the address distance between two consecutive registers
+ *			within the range
+ * @s_bit:		the start bit for the first register within the range
+ * @x_bits:		the bit distance between two consecutive pins within
+ *			the range
+ * @sz_reg:		the size of bits in a register
+ * @fixed:		the consecutive pins share the same bits with the 1st
+ *			pin
+ */
+struct mtk_pin_field_calc {
+	u16 s_pin;
+	u16 e_pin;
+	u8  i_base;
+	u32 s_addr;
+	u8  x_addrs;
+	u8  s_bit;
+	u8  x_bits;
+	u8  sz_reg;
+	u8  fixed;
+};
+
+/* struct mtk_pin_reg_calc - the structure that holds all ranges used to
+ *			     determine which register the pin would make use of
+ *			     for certain pin attribute.
+ * @range:		     the start address for the range
+ * @nranges:		     the number of items in the range
+ */
+struct mtk_pin_reg_calc {
+	const struct mtk_pin_field_calc *range;
+	unsigned int nranges;
+};
+
+/**
+ * struct mtk_func_desc - the structure that providing information
+ *			  all the funcs for this pin
+ * @name:		the name of function
+ * @muxval:		the mux to the function
+ */
+struct mtk_func_desc {
+	const char *name;
+	u8 muxval;
+};
+
+/**
+ * struct mtk_eint_desc - the structure that providing information
+ *			       for eint data per pin
+ * @eint_m:		the eint mux for this pin
+ * @eitn_n:		the eint number for this pin
+ */
+struct mtk_eint_desc {
+	u16 eint_m;
+	u16 eint_n;
+};
+
+/**
+ * struct mtk_pin_desc - the structure that providing information
+ *			       for each pin of chips
+ * @number:		unique pin number from the global pin number space
+ * @name:		name for this pin
+ * @eint:		the eint data for this pin
+ * @drv_n:		the index with the driving group
+ * @funcs:		all available functions for this pins (only used in
+ *			those drivers compatible to pinctrl-mtk-common.c-like
+ *			ones)
+ */
+struct mtk_pin_desc {
+	unsigned int number;
+	const char *name;
+	struct mtk_eint_desc eint;
+	u8 drv_n;
+	struct mtk_func_desc *funcs;
+};
+
+struct mtk_pinctrl_group {
+	const char	*name;
+	unsigned long	config;
+	unsigned	pin;
+};
+
+struct mtk_pinctrl;
+
+/* struct mtk_pin_soc - the structure that holds SoC-specific data */
+struct mtk_pin_soc {
+	const struct mtk_pin_reg_calc	*reg_cal;
+	const struct mtk_pin_desc	*pins;
+	unsigned int			npins;
+	const struct group_desc		*grps;
+	unsigned int			ngrps;
+	const struct function_desc	*funcs;
+	unsigned int			nfuncs;
+	const struct mtk_eint_regs	*eint_regs;
+	const struct mtk_eint_hw	*eint_hw;
+
+	/* Specific parameters per SoC */
+	u8				gpio_m;
+	bool				ies_present;
+	const char * const		*base_names;
+	unsigned int			nbase_names;
+
+	/* Specific pinconfig operations */
+	int (*bias_disable_set)(struct mtk_pinctrl *hw,
+				const struct mtk_pin_desc *desc);
+	int (*bias_disable_get)(struct mtk_pinctrl *hw,
+				const struct mtk_pin_desc *desc, int *res);
+	int (*bias_set)(struct mtk_pinctrl *hw,
+			const struct mtk_pin_desc *desc, bool pullup);
+	int (*bias_get)(struct mtk_pinctrl *hw,
+			const struct mtk_pin_desc *desc, bool pullup, int *res);
+
+	int (*bias_set_combo)(struct mtk_pinctrl *hw,
+			const struct mtk_pin_desc *desc, u32 pullup, u32 arg);
+	int (*bias_get_combo)(struct mtk_pinctrl *hw,
+			const struct mtk_pin_desc *desc, u32 *pullup, u32 *arg);
+
+	int (*drive_set)(struct mtk_pinctrl *hw,
+			 const struct mtk_pin_desc *desc, u32 arg);
+	int (*drive_get)(struct mtk_pinctrl *hw,
+			 const struct mtk_pin_desc *desc, int *val);
+
+	int (*adv_pull_set)(struct mtk_pinctrl *hw,
+			    const struct mtk_pin_desc *desc, bool pullup,
+			    u32 arg);
+	int (*adv_pull_get)(struct mtk_pinctrl *hw,
+			    const struct mtk_pin_desc *desc, bool pullup,
+			    u32 *val);
+	int (*adv_drive_set)(struct mtk_pinctrl *hw,
+			     const struct mtk_pin_desc *desc, u32 arg);
+	int (*adv_drive_get)(struct mtk_pinctrl *hw,
+			     const struct mtk_pin_desc *desc, u32 *val);
+
+	/* Specific driver data */
+	void				*driver_data;
+};
+
+struct mtk_pinctrl {
+	struct pinctrl_dev		*pctrl;
+	void __iomem			**base;
+	u8				nbase;
+	struct device			*dev;
+	struct gpio_chip		chip;
+	const struct mtk_pin_soc        *soc;
+	struct mtk_eint			*eint;
+	struct mtk_pinctrl_group	*groups;
+	const char          **grp_names;
+};
+
+void mtk_rmw(struct mtk_pinctrl *pctl, u8 i, u32 reg, u32 mask, u32 set);
+
+int mtk_hw_set_value(struct mtk_pinctrl *hw, const struct mtk_pin_desc *desc,
+		     int field, int value);
+int mtk_hw_get_value(struct mtk_pinctrl *hw, const struct mtk_pin_desc *desc,
+		     int field, int *value);
+
+int mtk_build_eint(struct mtk_pinctrl *hw, struct platform_device *pdev);
+
+int mtk_pinconf_bias_disable_set(struct mtk_pinctrl *hw,
+				 const struct mtk_pin_desc *desc);
+int mtk_pinconf_bias_disable_get(struct mtk_pinctrl *hw,
+				 const struct mtk_pin_desc *desc, int *res);
+int mtk_pinconf_bias_set(struct mtk_pinctrl *hw,
+			 const struct mtk_pin_desc *desc, bool pullup);
+int mtk_pinconf_bias_get(struct mtk_pinctrl *hw,
+			 const struct mtk_pin_desc *desc, bool pullup,
+			 int *res);
+
+int mtk_pinconf_bias_disable_set_rev1(struct mtk_pinctrl *hw,
+				      const struct mtk_pin_desc *desc);
+int mtk_pinconf_bias_disable_get_rev1(struct mtk_pinctrl *hw,
+				      const struct mtk_pin_desc *desc,
+				      int *res);
+int mtk_pinconf_bias_set_rev1(struct mtk_pinctrl *hw,
+			      const struct mtk_pin_desc *desc, bool pullup);
+int mtk_pinconf_bias_get_rev1(struct mtk_pinctrl *hw,
+			      const struct mtk_pin_desc *desc, bool pullup,
+			      int *res);
+int mtk_pinconf_bias_set_combo(struct mtk_pinctrl *hw,
+				const struct mtk_pin_desc *desc,
+				u32 pullup, u32 enable);
+int mtk_pinconf_bias_get_combo(struct mtk_pinctrl *hw,
+			      const struct mtk_pin_desc *desc,
+			      u32 *pullup, u32 *enable);
+
+int mtk_pinconf_drive_set(struct mtk_pinctrl *hw,
+			  const struct mtk_pin_desc *desc, u32 arg);
+int mtk_pinconf_drive_get(struct mtk_pinctrl *hw,
+			  const struct mtk_pin_desc *desc, int *val);
+
+int mtk_pinconf_drive_set_rev1(struct mtk_pinctrl *hw,
+			       const struct mtk_pin_desc *desc, u32 arg);
+int mtk_pinconf_drive_get_rev1(struct mtk_pinctrl *hw,
+			       const struct mtk_pin_desc *desc, int *val);
+
+int mtk_pinconf_drive_set_raw(struct mtk_pinctrl *hw,
+			       const struct mtk_pin_desc *desc, u32 arg);
+int mtk_pinconf_drive_get_raw(struct mtk_pinctrl *hw,
+			       const struct mtk_pin_desc *desc, int *val);
+
+int mtk_pinconf_adv_pull_set(struct mtk_pinctrl *hw,
+			     const struct mtk_pin_desc *desc, bool pullup,
+			     u32 arg);
+int mtk_pinconf_adv_pull_get(struct mtk_pinctrl *hw,
+			     const struct mtk_pin_desc *desc, bool pullup,
+			     u32 *val);
+int mtk_pinconf_adv_drive_set(struct mtk_pinctrl *hw,
+			      const struct mtk_pin_desc *desc, u32 arg);
+int mtk_pinconf_adv_drive_get(struct mtk_pinctrl *hw,
+			      const struct mtk_pin_desc *desc, u32 *val);
+
+bool mtk_is_virt_gpio(struct mtk_pinctrl *hw, unsigned int gpio_n);
+#endif /* __PINCTRL_MTK_COMMON_V2_H */