The RTD SoCs share a similar design for pinmux and pinconfig.
This common pinctrl driver supports different variants within the RTD
SoCs.
Signed-off-by: TY Chang <tychang@xxxxxxxxxxx>
---
drivers/pinctrl/Kconfig | 1 +
drivers/pinctrl/Makefile | 1 +
drivers/pinctrl/realtek/Kconfig | 8 +
drivers/pinctrl/realtek/Makefile | 3 +
drivers/pinctrl/realtek/pinctrl-rtd.c | 568 ++++++++++++++++++++++++++
drivers/pinctrl/realtek/pinctrl-rtd.h | 124 ++++++
6 files changed, 705 insertions(+)
create mode 100644 drivers/pinctrl/realtek/Kconfig
create mode 100644 drivers/pinctrl/realtek/Makefile
create mode 100644 drivers/pinctrl/realtek/pinctrl-rtd.c
create mode 100644 drivers/pinctrl/realtek/pinctrl-rtd.h
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index 57d57af1f624..9f79ce1bb621 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -531,6 +531,7 @@ source "drivers/pinctrl/nuvoton/Kconfig"
source "drivers/pinctrl/nxp/Kconfig"
source "drivers/pinctrl/pxa/Kconfig"
source "drivers/pinctrl/qcom/Kconfig"
+source "drivers/pinctrl/realtek/Kconfig"
source "drivers/pinctrl/renesas/Kconfig"
source "drivers/pinctrl/samsung/Kconfig"
source "drivers/pinctrl/spear/Kconfig"
diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile
index 482b391b5deb..beea6ac8b49e 100644
--- a/drivers/pinctrl/Makefile
+++ b/drivers/pinctrl/Makefile
@@ -67,6 +67,7 @@ obj-y += nuvoton/
obj-y += nxp/
obj-$(CONFIG_PINCTRL_PXA) += pxa/
obj-y += qcom/
+obj-$(CONFIG_ARCH_REALTEK) += realtek/
obj-$(CONFIG_PINCTRL_RENESAS) += renesas/
obj-$(CONFIG_PINCTRL_SAMSUNG) += samsung/
obj-$(CONFIG_PINCTRL_SPEAR) += spear/
diff --git a/drivers/pinctrl/realtek/Kconfig b/drivers/pinctrl/realtek/Kconfig
new file mode 100644
index 000000000000..d92aad885a81
--- /dev/null
+++ b/drivers/pinctrl/realtek/Kconfig
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+config PINCTRL_RTD
+ tristate "Realtek DHC core pin controller driver"
+ depends on ARCH_REALTEK
+ default y
+ select PINMUX
+ select GENERIC_PINCONF
diff --git a/drivers/pinctrl/realtek/Makefile b/drivers/pinctrl/realtek/Makefile
new file mode 100644
index 000000000000..be2c65b26115
--- /dev/null
+++ b/drivers/pinctrl/realtek/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+# Realtek DHC pin control drivers
+obj-$(CONFIG_PINCTRL_RTD) += pinctrl-rtd.o
diff --git a/drivers/pinctrl/realtek/pinctrl-rtd.c b/drivers/pinctrl/realtek/pinctrl-rtd.c
new file mode 100644
index 000000000000..057495f0cd34
--- /dev/null
+++ b/drivers/pinctrl/realtek/pinctrl-rtd.c
@@ -0,0 +1,568 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Realtek DHC pin controller driver
+ *
+ * Copyright (c) 2023 Realtek Semiconductor Corp.
+ */
+
+#include <linux/bitops.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/pinctrl/machine.h>
+#include <linux/pinctrl/pinconf.h>
+#include <linux/pinctrl/pinconf-generic.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinmux.h>
+#include <linux/platform_device.h>
+#include <linux/seq_file.h>
+#include <linux/slab.h>
+#include "../core.h"
+#include "../pinctrl-utils.h"
+#include "pinctrl-rtd.h"
+
+struct rtd_pinctrl {
+ struct device *dev;
+ struct pinctrl_dev *pcdev;
+ void __iomem *base;
+ struct pinctrl_desc desc;
+ const struct rtd_pinctrl_desc *info;
+};
+
+/* custom pinconf parameters */
+#define RTD_P_DRIVE (PIN_CONFIG_END + 1)
+#define RTD_N_DRIVE (PIN_CONFIG_END + 2)
+#define RTD_D_CYCLE (PIN_CONFIG_END + 3)
+
+static const struct pinconf_generic_params rtd_custom_bindings[] = {
+ {"realtek,pdrive", RTD_P_DRIVE, 0},
+ {"realtek,ndrive", RTD_N_DRIVE, 0},
+ {"realtek,dcycle", RTD_D_CYCLE, 0},
+};
+
+static int rtd_pinctrl_get_groups_count(struct pinctrl_dev *pcdev)
+{
+ struct rtd_pinctrl *data = pinctrl_dev_get_drvdata(pcdev);
+
+ return data->info->num_groups;
+}
+
+static const char *rtd_pinctrl_get_group_name(struct pinctrl_dev *pcdev,
+ unsigned int selector)
+{
+ struct rtd_pinctrl *data = pinctrl_dev_get_drvdata(pcdev);
+
+ return data->info->groups[selector].name;
+}
+
+static int rtd_pinctrl_get_group_pins(struct pinctrl_dev *pcdev,
+ unsigned int selector,
+ const unsigned int **pins,
+ unsigned int *num_pins)
+{
+ struct rtd_pinctrl *data = pinctrl_dev_get_drvdata(pcdev);
+
+ *pins = data->info->groups[selector].pins;
+ *num_pins = data->info->groups[selector].num_pins;
+
+ return 0;
+}
+
+static void rtd_pinctrl_dbg_show(struct pinctrl_dev *pcdev,
+ struct seq_file *s,
+ unsigned int offset)
+{
+ struct rtd_pinctrl *data = pinctrl_dev_get_drvdata(pcdev);
+ const struct rtd_pin_desc *mux = &data->info->muxes[offset];
+ const struct rtd_pin_mux_desc *func;
+ u32 val;
+ u32 mask;
+ u32 pin_val;
+ int is_map;
+
+ if (!mux->name) {
+ seq_puts(s, "[not defined]");
+ return;
+ }
+ val = readl_relaxed(data->base + mux->mux_offset);
+ mask = mux->mux_mask;
+ pin_val = val & mask;
+
+ is_map = 0;
+ func = &mux->functions[0];
+ seq_puts(s, "function: ");
+ while (func->name) {
+ if (func->mux_value == pin_val) {
+ is_map = 1;
+ seq_printf(s, "[%s] ", func->name);
+ } else {
+ seq_printf(s, "%s ", func->name);
+ }
+ func++;
+ }
+ if (!is_map)
+ seq_puts(s, "[not defined]");
+}
+
+static const struct pinctrl_ops rtd_pinctrl_ops = {
+ .dt_node_to_map = pinconf_generic_dt_node_to_map_all,
+ .dt_free_map = pinctrl_utils_free_map,
+ .get_groups_count = rtd_pinctrl_get_groups_count,
+ .get_group_name = rtd_pinctrl_get_group_name,
+ .get_group_pins = rtd_pinctrl_get_group_pins,
+ .pin_dbg_show = rtd_pinctrl_dbg_show,
+};
+
+static int rtd_pinctrl_get_functions_count(struct pinctrl_dev *pcdev)
+{
+ struct rtd_pinctrl *data = pinctrl_dev_get_drvdata(pcdev);
+
+ return data->info->num_functions;
+}
+
+static const char *rtd_pinctrl_get_function_name(struct pinctrl_dev *pcdev,
+ unsigned int selector)
+{
+ struct rtd_pinctrl *data = pinctrl_dev_get_drvdata(pcdev);
+
+ return data->info->functions[selector].name;
+}
+
+static int rtd_pinctrl_get_function_groups(struct pinctrl_dev *pcdev,
+ unsigned int selector,
+ const char * const **groups,
+ unsigned int * const num_groups)
+{
+ struct rtd_pinctrl *data = pinctrl_dev_get_drvdata(pcdev);
+
+ *groups = data->info->functions[selector].groups;
+ *num_groups = data->info->functions[selector].num_groups;
+
+ return 0;
+}
+
+static const struct rtd_pin_desc *rtd_pinctrl_find_mux(struct rtd_pinctrl *data, unsigned int pin)
+{
+ if (!data->info->muxes[pin].name)
+ return &data->info->muxes[pin];
+
+ return NULL;
+}
+
+static void rtd_pinctrl_update_bits(struct rtd_pinctrl *data, unsigned int offset,
+ unsigned int mask, unsigned int val)
+{
+ unsigned int reg = readl_relaxed(data->base + offset);
+
+ reg &= ~mask;
+ reg |= (mask & val);
+ writel_relaxed(reg, data->base + offset);
+}
+
+static int rtd_pinctrl_set_one_mux(struct pinctrl_dev *pcdev,
+ unsigned int pin, const char *func_name)
+{
+ struct rtd_pinctrl *data = pinctrl_dev_get_drvdata(pcdev);
+ const struct rtd_pin_desc *mux;
+ int i;
+
+ mux = rtd_pinctrl_find_mux(data, pin);
+ if (!mux)
+ return 0;
+
+ if (!mux->functions) {
+ dev_err(pcdev->dev, "No functions available for pin %s\n", mux->name);
+ return -ENOTSUPP;
+ }
+
+ for (i = 0; mux->functions[i].name; i++) {
+ if (strcmp(mux->functions[i].name, func_name) != 0)
+ continue;
+ rtd_pinctrl_update_bits(data, mux->mux_offset, mux->mux_mask,
+ mux->functions[i].mux_value);
+ return 0;
+ }
+
+ dev_err(pcdev->dev, "No function %s available for pin %s\n", func_name, mux->name);
+ return -EINVAL;
+}
+
+static int rtd_pinctrl_set_mux(struct pinctrl_dev *pcdev,
+ unsigned int function, unsigned int group)
+{
+ struct rtd_pinctrl *data = pinctrl_dev_get_drvdata(pcdev);
+ const unsigned int *pins;
+ unsigned int num_pins;
+ const char *func_name;
+ const char *group_name;
+ int i, ret;
+
+ func_name = data->info->functions[function].name;
+ group_name = data->info->groups[group].name;
+
+ ret = rtd_pinctrl_get_group_pins(pcdev, group, &pins, &num_pins);
+ if (ret) {
+ dev_err(pcdev->dev, "Getting pins for group %s failed\n", group_name);
+ return ret;
+ }
+
+ for (i = 0; i < num_pins; i++) {
+ ret = rtd_pinctrl_set_one_mux(pcdev, pins[i], func_name);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int rtd_pinctrl_gpio_request_enable(struct pinctrl_dev *pcdev,
+ struct pinctrl_gpio_range *range,
+ unsigned int offset)
+{
+ return rtd_pinctrl_set_one_mux(pcdev, offset, "gpio");
+}
+
+static const struct pinmux_ops rtd_pinmux_ops = {
+ .get_functions_count = rtd_pinctrl_get_functions_count,
+ .get_function_name = rtd_pinctrl_get_function_name,
+ .get_function_groups = rtd_pinctrl_get_function_groups,
+ .set_mux = rtd_pinctrl_set_mux,
+ .gpio_request_enable = rtd_pinctrl_gpio_request_enable,
+};
+
+static const struct pinctrl_pin_desc
+ *rtd_pinctrl_get_pin_by_number(struct rtd_pinctrl *data, int number)
+{
+ int i;
+
+ for (i = 0; i < data->info->num_pins; i++) {
+ if (data->info->pins[i].number == number)
+ return &data->info->pins[i];
+ }
+
+ return NULL;
+}
+
+static const struct rtd_pin_config_desc
+ *rtd_pinctrl_find_config(struct rtd_pinctrl *data, unsigned int pin)
+{
+ if (!data->info->configs[pin].name)
+ return &data->info->configs[pin];
+
+ return NULL;
+}
+
+static const struct rtd_pin_sconfig_desc *rtd_pinctrl_find_sconfig(struct rtd_pinctrl *data,
+ unsigned int pin)
+{
+ int i;
+ const struct pinctrl_pin_desc *pin_desc;
+ const char *pin_name;
+
+ pin_desc = rtd_pinctrl_get_pin_by_number(data, pin);
+ if (!pin_desc)
+ return NULL;
+
+ pin_name = pin_desc->name;
+
+ for (i = 0; i < data->info->num_sconfigs; i++) {
+ if (strcmp(data->info->sconfigs[i].name, pin_name) == 0)
+ return &data->info->sconfigs[i];
+ }
+
+ return NULL;
+}
+
+static int rtd_pconf_parse_conf(struct rtd_pinctrl *data,
+ unsigned int pinnr,
+ enum pin_config_param param,
+ enum pin_config_param arg)
+{
+ const struct rtd_pin_config_desc *config_desc;
+ const struct rtd_pin_sconfig_desc *sconfig_desc;
+ u8 set_val = 0;
+ u16 strength;
+ u32 val;
+ u32 mask;
+ u32 pulsel_off, pulen_off, smt_off, curr_off, pow_off, reg_off, p_off, n_off;
+ const char *name = data->info->pins[pinnr].name;
+
+ config_desc = rtd_pinctrl_find_config(data, pinnr);
+ if (!config_desc) {
+ dev_err(data->dev, "Not support pin config for pin: %s\n", name);
+ return -ENOTSUPP;
+ }
+ switch ((u32)param) {
+ case PIN_CONFIG_INPUT_SCHMITT:
+ case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
+ if (config_desc->smt_offset == NA) {
+ dev_err(data->dev, "Not support input schmitt for pin: %s\n", name);
+ return -ENOTSUPP;
+ }
+ smt_off = config_desc->base_bit + config_desc->smt_offset;
+ set_val = arg;
+
+ mask = BIT(smt_off);
+ val = set_val ? BIT(smt_off) : 0;
+ rtd_pinctrl_update_bits(data, config_desc->reg_offset, mask, val);
+ break;
+
+ case PIN_CONFIG_DRIVE_PUSH_PULL:
+ if (config_desc->pud_en_offset == NA) {
+ dev_err(data->dev, "Not support push pull for pin: %s\n", name);
+ return -ENOTSUPP;
+ }
+ pulen_off = config_desc->base_bit + config_desc->pud_en_offset;
+
+ mask = BIT(pulen_off);
+ val = 0;
+ rtd_pinctrl_update_bits(data, config_desc->reg_offset, mask, val);
+ break;
+
+ case PIN_CONFIG_BIAS_DISABLE:
+ if (config_desc->pud_en_offset == NA) {
+ dev_err(data->dev, "Not support bias disable for pin: %s\n", name);
+ return -ENOTSUPP;
+ }
+ pulen_off = config_desc->base_bit + config_desc->pud_en_offset;
+
+ mask = BIT(pulen_off);
+ val = 0;
+ rtd_pinctrl_update_bits(data, config_desc->reg_offset, mask, val);
+ break;
+
+ case PIN_CONFIG_BIAS_PULL_UP:
+ if (config_desc->pud_en_offset == NA) {
+ dev_err(data->dev, "Not support bias pull up for pin:%s\n", name);
+ return -ENOTSUPP;
+ }
+ pulen_off = config_desc->base_bit + config_desc->pud_en_offset;
+ pulsel_off = config_desc->base_bit + config_desc->pud_sel_offset;
+
+ mask = BIT(pulen_off) | BIT(pulsel_off);
+ val = mask;
+ rtd_pinctrl_update_bits(data, config_desc->reg_offset, mask, val);
+ break;
+
+ case PIN_CONFIG_BIAS_PULL_DOWN:
+ if (config_desc->pud_en_offset == NA) {
+ dev_err(data->dev, "Not support bias pull down for pin: %s\n", name);
+ return -ENOTSUPP;
+ }
+ pulen_off = config_desc->base_bit + config_desc->pud_en_offset;
+ pulsel_off = config_desc->base_bit + config_desc->pud_sel_offset;
+
+ mask = BIT(pulen_off) | BIT(pulsel_off);
+ val = BIT(pulen_off);
+ rtd_pinctrl_update_bits(data, config_desc->reg_offset, mask, val);
+ break;
+
+ case PIN_CONFIG_DRIVE_STRENGTH:
+ curr_off = config_desc->base_bit + config_desc->curr_offset;
+ strength = arg;
+ val = 0;
+ switch (config_desc->curr_type) {
+ case PADDRI_4_8:
+ if (strength == 4)
+ val = 0;
+ else if (strength == 8)
+ val = BIT(curr_off);
+ else
+ return -EINVAL;
+ break;
+ case PADDRI_2_4:
+ if (strength == 2)
+ val = 0;
+ else if (strength == 4)
+ val = BIT(curr_off);
+ else
+ return -EINVAL;
+ break;
+ case NA:
+ dev_err(data->dev, "Not support drive strength for pin: %s\n", name);
+ return -ENOTSUPP;
+ default:
+ return -EINVAL;
+ }
+ mask = BIT(curr_off);
+ rtd_pinctrl_update_bits(data, config_desc->reg_offset, mask, val);
+ break;
+
+ case PIN_CONFIG_POWER_SOURCE:
+ if (config_desc->power_offset == NA) {
+ dev_err(data->dev, "Not support power source for pin: %s\n", name);
+ return -ENOTSUPP;
+ }
+ reg_off = config_desc->reg_offset;
+ pow_off = config_desc->base_bit + config_desc->power_offset;
+ if (pow_off >= 32) {
+ reg_off += 0x4;
+ pow_off -= 32;
+ }
+ set_val = arg;
+ mask = BIT(pow_off);
+ val = set_val ? mask : 0;
+ rtd_pinctrl_update_bits(data, reg_off, mask, val);
+ break;
+
+ case RTD_P_DRIVE:
+ sconfig_desc = rtd_pinctrl_find_sconfig(data, pinnr);
+ if (!sconfig_desc) {
+ dev_err(data->dev, "Not support P driving for pin: %s\n", name);
+ return -ENOTSUPP;
+ }
+ set_val = arg;
+ reg_off = sconfig_desc->reg_offset;
+ p_off = sconfig_desc->pdrive_offset;
+ if (p_off >= 32) {
+ reg_off += 0x4;
+ p_off -= 32;
+ }
+ mask = GENMASK(p_off + sconfig_desc->pdrive_maskbits - 1, p_off);
+ val = set_val << p_off;
+ rtd_pinctrl_update_bits(data, reg_off, mask, val);
+ break;
+
+ case RTD_N_DRIVE:
+ sconfig_desc = rtd_pinctrl_find_sconfig(data, pinnr);
+ if (!sconfig_desc) {
+ dev_err(data->dev, "Not support N driving for pin: %s\n", name);
+ return -ENOTSUPP;
+ }
+ set_val = arg;
+ reg_off = sconfig_desc->reg_offset;
+ n_off = sconfig_desc->ndrive_offset;
+ if (n_off >= 32) {
+ reg_off += 0x4;
+ n_off -= 32;
+ }
+ mask = GENMASK(n_off + sconfig_desc->ndrive_maskbits - 1, n_off);
+ val = set_val << n_off;
+ rtd_pinctrl_update_bits(data, reg_off, mask, val);
+ break;
+
+ case RTD_D_CYCLE:
+ sconfig_desc = rtd_pinctrl_find_sconfig(data, pinnr);
+ if (!sconfig_desc || sconfig_desc->dcycle_offset == NA) {
+ dev_err(data->dev, "Not support duty cycle for pin: %s\n", name);
+ return -ENOTSUPP;
+ }
+ set_val = arg;
+ mask = GENMASK(sconfig_desc->dcycle_offset +
+ sconfig_desc->dcycle_maskbits - 1, sconfig_desc->dcycle_offset);
+ val = set_val << sconfig_desc->dcycle_offset;
+ rtd_pinctrl_update_bits(data, sconfig_desc->reg_offset, mask, val);
+ break;
+
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+static int rtd_pin_config_get(struct pinctrl_dev *pcdev, unsigned int pinnr,
+ unsigned long *config)
+{
+ unsigned int param = pinconf_to_config_param(*config);
+ unsigned int arg = 0;
+
+ switch (param) {
+ default:
+ return -ENOTSUPP;
+ }
+
+ *config = pinconf_to_config_packed(param, arg);
+ return 0;
+}
+
+static int rtd_pin_config_set(struct pinctrl_dev *pcdev, unsigned int pinnr,
+ unsigned long *configs, unsigned int num_configs)
+{
+ struct rtd_pinctrl *data = pinctrl_dev_get_drvdata(pcdev);
+ int i;
+ int ret = 0;
+
+ for (i = 0; i < num_configs; i++) {
+ ret = rtd_pconf_parse_conf(data, pinnr,
+ pinconf_to_config_param(configs[i]),
+ pinconf_to_config_argument(configs[i]));
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int rtd_pin_config_group_set(struct pinctrl_dev *pcdev, unsigned int group,
+ unsigned long *configs, unsigned int num_configs)
+{
+ struct rtd_pinctrl *data = pinctrl_dev_get_drvdata(pcdev);
+ const unsigned int *pins;
+ unsigned int num_pins;
+ const char *group_name;
+ int i, ret;
+
+ group_name = data->info->groups[group].name;
+
+ ret = rtd_pinctrl_get_group_pins(pcdev, group, &pins, &num_pins);
+ if (ret) {
+ dev_err(pcdev->dev, "Getting pins for group %s failed\n", group_name);
+ return ret;
+ }
+
+ for (i = 0; i < num_pins; i++) {
+ ret = rtd_pin_config_set(pcdev, pins[i], configs, num_configs);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static const struct pinconf_ops rtd_pinconf_ops = {
+ .is_generic = true,
+ .pin_config_get = rtd_pin_config_get,
+ .pin_config_set = rtd_pin_config_set,
+ .pin_config_group_set = rtd_pin_config_group_set,
+};
+
+int rtd_pinctrl_probe(struct platform_device *pdev, const struct rtd_pinctrl_desc *desc)
+{
+ struct rtd_pinctrl *data;
+
+ data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ data->base = of_iomap(pdev->dev.of_node, 0);
+ if (IS_ERR(data->base))
+ return PTR_ERR(data->base);
+
+ data->dev = &pdev->dev;
+ data->info = desc;
+ data->desc.name = dev_name(&pdev->dev);
+ data->desc.pins = data->info->pins;
+ data->desc.npins = data->info->num_pins;
+ data->desc.pctlops = &rtd_pinctrl_ops;
+ data->desc.pmxops = &rtd_pinmux_ops;
+ data->desc.confops = &rtd_pinconf_ops;
+ data->desc.custom_params = rtd_custom_bindings;
+ data->desc.num_custom_params = ARRAY_SIZE(rtd_custom_bindings);
+ data->desc.owner = THIS_MODULE;
+
+ data->pcdev = pinctrl_register(&data->desc, &pdev->dev, data);
+ if (!data->pcdev)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, data);
+
+ dev_dbg(&pdev->dev, "probed\n");
+
+ return 0;
+}
+EXPORT_SYMBOL(rtd_pinctrl_probe);
+
+MODULE_DESCRIPTION("Realtek DHC SoC pinctrl driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/pinctrl/realtek/pinctrl-rtd.h b/drivers/pinctrl/realtek/pinctrl-rtd.h
new file mode 100644
index 000000000000..e15130896abc
--- /dev/null
+++ b/drivers/pinctrl/realtek/pinctrl-rtd.h
@@ -0,0 +1,124 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (c) 2023 Realtek Semiconductor Corp.
+ */
+
+#define NA 0xffffffff
+#define PADDRI_4_8 1
+#define PADDRI_2_4 0
+
+struct rtd_pin_group_desc {
+ const char *name;
+ const unsigned int *pins;
+ unsigned int num_pins;
+};
+
+struct rtd_pin_func_desc {
+ const char *name;
+ const char * const *groups;
+ unsigned int num_groups;
+};
+
+struct rtd_pin_mux_desc {
+ const char *name;
+ u32 mux_value;
+};
+
+struct rtd_pin_config_desc {
+ const char *name;
+ unsigned int reg_offset;
+ unsigned int base_bit;
+ unsigned int pud_en_offset;
+ unsigned int pud_sel_offset;
+ unsigned int curr_offset;
+ unsigned int smt_offset;
+ unsigned int power_offset;
+ unsigned int curr_type;
+};
+
+struct rtd_pin_sconfig_desc {
+ const char *name;
+ unsigned int reg_offset;
+ unsigned int dcycle_offset;
+ unsigned int dcycle_maskbits;
+ unsigned int ndrive_offset;
+ unsigned int ndrive_maskbits;
+ unsigned int pdrive_offset;
+ unsigned int pdrive_maskbits;
+};
+
+struct rtd_pin_desc {
+ const char *name;
+ unsigned int mux_offset;
+ u32 mux_mask;
+ const struct rtd_pin_mux_desc *functions;
+};
+
+struct rtd_pin_reg_list {
+ unsigned int reg_offset;
+ unsigned int val;
+};
+
+#define SHIFT_LEFT(_val, _shift) ((_val) << (_shift))
+
+#define RTK_PIN_MUX(_name, _mux_off, _mux_mask, ...) \
+ { \
+ .name = # _name, \
+ .mux_offset = _mux_off, \
+ .mux_mask = _mux_mask, \
+ .functions = (const struct rtd_pin_mux_desc []) { \
+ __VA_ARGS__, { } \
+ }, \
+ }
+
+#define RTK_PIN_CONFIG(_name, _reg_off, _base_bit, _pud_en_off, \
+ _pud_sel_off, _curr_off, _smt_off, _pow_off, _curr_type) \
+ { \
+ .name = # _name, \
+ .reg_offset = _reg_off, \
+ .base_bit = _base_bit, \
+ .pud_en_offset = _pud_en_off, \
+ .pud_sel_offset = _pud_sel_off, \
+ .curr_offset = _curr_off, \
+ .smt_offset = _smt_off, \
+ .power_offset = _pow_off, \
+ .curr_type = _curr_type, \
+ }
+
+#define RTK_PIN_SCONFIG(_name, _reg_off, _d_offset, _d_mask, \
+ _n_offset, _n_mask, _p_offset, _p_mask) \
+ { \
+ .name = # _name, \
+ .reg_offset = _reg_off, \
+ .dcycle_offset = _d_offset, \
+ .dcycle_maskbits = _d_mask, \
+ .ndrive_offset = _n_offset, \
+ .ndrive_maskbits = _n_mask, \
+ .pdrive_offset = _p_offset, \
+ .pdrive_maskbits = _p_mask, \
+ }
+
+#define RTK_PIN_FUNC(_mux_val, _name) \
+ { \
+ .name = _name, \
+ .mux_value = _mux_val, \
+ }
+
+struct rtd_pinctrl_desc {
+ const struct pinctrl_pin_desc *pins;
+ unsigned int num_pins;
+ const struct rtd_pin_group_desc *groups;
+ unsigned int num_groups;
+ const struct rtd_pin_func_desc *functions;
+ unsigned int num_functions;
+ const struct rtd_pin_desc *muxes;
+ unsigned int num_muxes;
+ const struct rtd_pin_config_desc *configs;
+ unsigned int num_configs;
+ const struct rtd_pin_sconfig_desc *sconfigs;
+ unsigned int num_sconfigs;
+ struct rtd_pin_reg_list *lists;
+ unsigned int num_regs;
+};
+
+int rtd_pinctrl_probe(struct platform_device *pdev, const struct rtd_pinctrl_desc *desc);
--
2.41.0
