--- /dev/null
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Driver for Broadcom brcmstb GPIO units (pinctrl only)
+ *
+ * Copyright (C) 2024-2025 Ivan T. Ivanov, Andrea della Porta
+ * Copyright (C) 2021-3 Raspberry Pi Ltd.
+ * Copyright (C) 2012 Chris Boot, Simon Arlott, Stephen Warren
+ *
+ * Based heavily on the BCM2835 GPIO & pinctrl driver, which was inspired by:
+ * pinctrl-nomadik.c, please see original file for copyright information
+ * pinctrl-tegra.c, please see original file for copyright information
+ */
+
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/of.h>
+#include "pinctrl-brcmstb.h"
+
+#define BRCMSTB_FSEL_COUNT 8
+#define BRCMSTB_FSEL_MASK 0xf
+
+#define BRCMSTB_PIN(i, f1, f2, f3, f4, f5, f6, f7, f8) \
+ [i] = { \
+ .funcs = (u8[]) { \
+ func_##f1, \
+ func_##f2, \
+ func_##f3, \
+ func_##f4, \
+ func_##f5, \
+ func_##f6, \
+ func_##f7, \
+ func_##f8, \
+ }, \
+ .n_funcs = BRCMSTB_FSEL_COUNT, \
+ .func_mask = BRCMSTB_FSEL_MASK, \
+ }
+
+enum bcm2712_funcs {
+ func_gpio,
+ func_alt1,
+ func_alt2,
+ func_alt3,
+ func_alt4,
+ func_alt5,
+ func_alt6,
+ func_alt7,
+ func_alt8,
+ func_aon_cpu_standbyb,
+ func_aon_fp_4sec_resetb,
+ func_aon_gpclk,
+ func_aon_pwm,
+ func_arm_jtag,
+ func_aud_fs_clk0,
+ func_avs_pmu_bsc,
+ func_bsc_m0,
+ func_bsc_m1,
+ func_bsc_m2,
+ func_bsc_m3,
+ func_clk_observe,
+ func_ctl_hdmi_5v,
+ func_enet0,
+ func_enet0_mii,
+ func_enet0_rgmii,
+ func_ext_sc_clk,
+ func_fl0,
+ func_fl1,
+ func_gpclk0,
+ func_gpclk1,
+ func_gpclk2,
+ func_hdmi_tx0_auto_i2c,
+ func_hdmi_tx0_bsc,
+ func_hdmi_tx1_auto_i2c,
+ func_hdmi_tx1_bsc,
+ func_i2s_in,
+ func_i2s_out,
+ func_ir_in,
+ func_mtsif,
+ func_mtsif_alt,
+ func_mtsif_alt1,
+ func_pdm,
+ func_pkt,
+ func_pm_led_out,
+ func_sc0,
+ func_sd0,
+ func_sd2,
+ func_sd_card_a,
+ func_sd_card_b,
+ func_sd_card_c,
+ func_sd_card_d,
+ func_sd_card_e,
+ func_sd_card_f,
+ func_sd_card_g,
+ func_spdif_out,
+ func_spi_m,
+ func_spi_s,
+ func_sr_edm_sense,
+ func_te0,
+ func_te1,
+ func_tsio,
+ func_uart0,
+ func_uart1,
+ func_uart2,
+ func_usb_pwr,
+ func_usb_vbus,
+ func_uui,
+ func_vc_i2c0,
+ func_vc_i2c3,
+ func_vc_i2c4,
+ func_vc_i2c5,
+ func_vc_i2csl,
+ func_vc_pcm,
+ func_vc_pwm0,
+ func_vc_pwm1,
+ func_vc_spi0,
+ func_vc_spi3,
+ func_vc_spi4,
+ func_vc_spi5,
+ func_vc_uart0,
+ func_vc_uart2,
+ func_vc_uart3,
+ func_vc_uart4,
+ func__,
+ func_count = func__
+};
+
+static const struct pin_regs bcm2712_c0_gpio_pin_regs[] = {
+ GPIO_REGS(0, 0, 0, 7, 7),
+ GPIO_REGS(1, 0, 1, 7, 8),
+ GPIO_REGS(2, 0, 2, 7, 9),
+ GPIO_REGS(3, 0, 3, 7, 10),
+ GPIO_REGS(4, 0, 4, 7, 11),
+ GPIO_REGS(5, 0, 5, 7, 12),
+ GPIO_REGS(6, 0, 6, 7, 13),
+ GPIO_REGS(7, 0, 7, 7, 14),
+ GPIO_REGS(8, 1, 0, 8, 0),
+ GPIO_REGS(9, 1, 1, 8, 1),
+ GPIO_REGS(10, 1, 2, 8, 2),
+ GPIO_REGS(11, 1, 3, 8, 3),
+ GPIO_REGS(12, 1, 4, 8, 4),
+ GPIO_REGS(13, 1, 5, 8, 5),
+ GPIO_REGS(14, 1, 6, 8, 6),
+ GPIO_REGS(15, 1, 7, 8, 7),
+ GPIO_REGS(16, 2, 0, 8, 8),
+ GPIO_REGS(17, 2, 1, 8, 9),
+ GPIO_REGS(18, 2, 2, 8, 10),
+ GPIO_REGS(19, 2, 3, 8, 11),
+ GPIO_REGS(20, 2, 4, 8, 12),
+ GPIO_REGS(21, 2, 5, 8, 13),
+ GPIO_REGS(22, 2, 6, 8, 14),
+ GPIO_REGS(23, 2, 7, 9, 0),
+ GPIO_REGS(24, 3, 0, 9, 1),
+ GPIO_REGS(25, 3, 1, 9, 2),
+ GPIO_REGS(26, 3, 2, 9, 3),
+ GPIO_REGS(27, 3, 3, 9, 4),
+ GPIO_REGS(28, 3, 4, 9, 5),
+ GPIO_REGS(29, 3, 5, 9, 6),
+ GPIO_REGS(30, 3, 6, 9, 7),
+ GPIO_REGS(31, 3, 7, 9, 8),
+ GPIO_REGS(32, 4, 0, 9, 9),
+ GPIO_REGS(33, 4, 1, 9, 10),
+ GPIO_REGS(34, 4, 2, 9, 11),
+ GPIO_REGS(35, 4, 3, 9, 12),
+ GPIO_REGS(36, 4, 4, 9, 13),
+ GPIO_REGS(37, 4, 5, 9, 14),
+ GPIO_REGS(38, 4, 6, 10, 0),
+ GPIO_REGS(39, 4, 7, 10, 1),
+ GPIO_REGS(40, 5, 0, 10, 2),
+ GPIO_REGS(41, 5, 1, 10, 3),
+ GPIO_REGS(42, 5, 2, 10, 4),
+ GPIO_REGS(43, 5, 3, 10, 5),
+ GPIO_REGS(44, 5, 4, 10, 6),
+ GPIO_REGS(45, 5, 5, 10, 7),
+ GPIO_REGS(46, 5, 6, 10, 8),
+ GPIO_REGS(47, 5, 7, 10, 9),
+ GPIO_REGS(48, 6, 0, 10, 10),
+ GPIO_REGS(49, 6, 1, 10, 11),
+ GPIO_REGS(50, 6, 2, 10, 12),
+ GPIO_REGS(51, 6, 3, 10, 13),
+ GPIO_REGS(52, 6, 4, 10, 14),
+ GPIO_REGS(53, 6, 5, 11, 0),
+ EMMC_REGS(54, 11, 1), /* EMMC_CMD */
+ EMMC_REGS(55, 11, 2), /* EMMC_DS */
+ EMMC_REGS(56, 11, 3), /* EMMC_CLK */
+ EMMC_REGS(57, 11, 4), /* EMMC_DAT0 */
+ EMMC_REGS(58, 11, 5), /* EMMC_DAT1 */
+ EMMC_REGS(59, 11, 6), /* EMMC_DAT2 */
+ EMMC_REGS(60, 11, 7), /* EMMC_DAT3 */
+ EMMC_REGS(61, 11, 8), /* EMMC_DAT4 */
+ EMMC_REGS(62, 11, 9), /* EMMC_DAT5 */
+ EMMC_REGS(63, 11, 10), /* EMMC_DAT6 */
+ EMMC_REGS(64, 11, 11), /* EMMC_DAT7 */
+};
+
+static struct pin_regs bcm2712_c0_aon_gpio_pin_regs[] = {
+ AON_GPIO_REGS(0, 3, 0, 6, 10),
+ AON_GPIO_REGS(1, 3, 1, 6, 11),
+ AON_GPIO_REGS(2, 3, 2, 6, 12),
+ AON_GPIO_REGS(3, 3, 3, 6, 13),
+ AON_GPIO_REGS(4, 3, 4, 6, 14),
+ AON_GPIO_REGS(5, 3, 5, 7, 0),
+ AON_GPIO_REGS(6, 3, 6, 7, 1),
+ AON_GPIO_REGS(7, 3, 7, 7, 2),
+ AON_GPIO_REGS(8, 4, 0, 7, 3),
+ AON_GPIO_REGS(9, 4, 1, 7, 4),
+ AON_GPIO_REGS(10, 4, 2, 7, 5),
+ AON_GPIO_REGS(11, 4, 3, 7, 6),
+ AON_GPIO_REGS(12, 4, 4, 7, 7),
+ AON_GPIO_REGS(13, 4, 5, 7, 8),
+ AON_GPIO_REGS(14, 4, 6, 7, 9),
+ AON_GPIO_REGS(15, 4, 7, 7, 10),
+ AON_GPIO_REGS(16, 5, 0, 7, 11),
+ AON_SGPIO_REGS(0, 0, 0),
+ AON_SGPIO_REGS(1, 0, 1),
+ AON_SGPIO_REGS(2, 0, 2),
+ AON_SGPIO_REGS(3, 0, 3),
+ AON_SGPIO_REGS(4, 1, 0),
+ AON_SGPIO_REGS(5, 2, 0),
+};
+
+static const struct pinctrl_pin_desc bcm2712_c0_gpio_pins[] = {
+ GPIO_PIN(0),
+ GPIO_PIN(1),
+ GPIO_PIN(2),
+ GPIO_PIN(3),
+ GPIO_PIN(4),
+ GPIO_PIN(5),
+ GPIO_PIN(6),
+ GPIO_PIN(7),
+ GPIO_PIN(8),
+ GPIO_PIN(9),
+ GPIO_PIN(10),
+ GPIO_PIN(11),
+ GPIO_PIN(12),
+ GPIO_PIN(13),
+ GPIO_PIN(14),
+ GPIO_PIN(15),
+ GPIO_PIN(16),
+ GPIO_PIN(17),
+ GPIO_PIN(18),
+ GPIO_PIN(19),
+ GPIO_PIN(20),
+ GPIO_PIN(21),
+ GPIO_PIN(22),
+ GPIO_PIN(23),
+ GPIO_PIN(24),
+ GPIO_PIN(25),
+ GPIO_PIN(26),
+ GPIO_PIN(27),
+ GPIO_PIN(28),
+ GPIO_PIN(29),
+ GPIO_PIN(30),
+ GPIO_PIN(31),
+ GPIO_PIN(32),
+ GPIO_PIN(33),
+ GPIO_PIN(34),
+ GPIO_PIN(35),
+ GPIO_PIN(36),
+ GPIO_PIN(37),
+ GPIO_PIN(38),
+ GPIO_PIN(39),
+ GPIO_PIN(40),
+ GPIO_PIN(41),
+ GPIO_PIN(42),
+ GPIO_PIN(43),
+ GPIO_PIN(44),
+ GPIO_PIN(45),
+ GPIO_PIN(46),
+ GPIO_PIN(47),
+ GPIO_PIN(48),
+ GPIO_PIN(49),
+ GPIO_PIN(50),
+ GPIO_PIN(51),
+ GPIO_PIN(52),
+ GPIO_PIN(53),
+ PINCTRL_PIN(54, "emmc_cmd"),
+ PINCTRL_PIN(55, "emmc_ds"),
+ PINCTRL_PIN(56, "emmc_clk"),
+ PINCTRL_PIN(57, "emmc_dat0"),
+ PINCTRL_PIN(58, "emmc_dat1"),
+ PINCTRL_PIN(59, "emmc_dat2"),
+ PINCTRL_PIN(60, "emmc_dat3"),
+ PINCTRL_PIN(61, "emmc_dat4"),
+ PINCTRL_PIN(62, "emmc_dat5"),
+ PINCTRL_PIN(63, "emmc_dat6"),
+ PINCTRL_PIN(64, "emmc_dat7"),
+};
+
+static struct pinctrl_pin_desc bcm2712_c0_aon_gpio_pins[] = {
+ AON_GPIO_PIN(0), AON_GPIO_PIN(1), AON_GPIO_PIN(2), AON_GPIO_PIN(3),
+ AON_GPIO_PIN(4), AON_GPIO_PIN(5), AON_GPIO_PIN(6), AON_GPIO_PIN(7),
+ AON_GPIO_PIN(8), AON_GPIO_PIN(9), AON_GPIO_PIN(10), AON_GPIO_PIN(11),
+ AON_GPIO_PIN(12), AON_GPIO_PIN(13), AON_GPIO_PIN(14), AON_GPIO_PIN(15),
+ AON_GPIO_PIN(16), AON_SGPIO_PIN(0), AON_SGPIO_PIN(1), AON_SGPIO_PIN(2),
+ AON_SGPIO_PIN(3), AON_SGPIO_PIN(4), AON_SGPIO_PIN(5),
+};
+
+static const struct pin_regs bcm2712_d0_gpio_pin_regs[] = {
+ GPIO_REGS(1, 0, 0, 4, 5),
+ GPIO_REGS(2, 0, 1, 4, 6),
+ GPIO_REGS(3, 0, 2, 4, 7),
+ GPIO_REGS(4, 0, 3, 4, 8),
+ GPIO_REGS(10, 0, 4, 4, 9),
+ GPIO_REGS(11, 0, 5, 4, 10),
+ GPIO_REGS(12, 0, 6, 4, 11),
+ GPIO_REGS(13, 0, 7, 4, 12),
+ GPIO_REGS(14, 1, 0, 4, 13),
+ GPIO_REGS(15, 1, 1, 4, 14),
+ GPIO_REGS(18, 1, 2, 5, 0),
+ GPIO_REGS(19, 1, 3, 5, 1),
+ GPIO_REGS(20, 1, 4, 5, 2),
+ GPIO_REGS(21, 1, 5, 5, 3),
+ GPIO_REGS(22, 1, 6, 5, 4),
+ GPIO_REGS(23, 1, 7, 5, 5),
+ GPIO_REGS(24, 2, 0, 5, 6),
+ GPIO_REGS(25, 2, 1, 5, 7),
+ GPIO_REGS(26, 2, 2, 5, 8),
+ GPIO_REGS(27, 2, 3, 5, 9),
+ GPIO_REGS(28, 2, 4, 5, 10),
+ GPIO_REGS(29, 2, 5, 5, 11),
+ GPIO_REGS(30, 2, 6, 5, 12),
+ GPIO_REGS(31, 2, 7, 5, 13),
+ GPIO_REGS(32, 3, 0, 5, 14),
+ GPIO_REGS(33, 3, 1, 6, 0),
+ GPIO_REGS(34, 3, 2, 6, 1),
+ GPIO_REGS(35, 3, 3, 6, 2),
+ EMMC_REGS(36, 6, 3), /* EMMC_CMD */
+ EMMC_REGS(37, 6, 4), /* EMMC_DS */
+ EMMC_REGS(38, 6, 5), /* EMMC_CLK */
+ EMMC_REGS(39, 6, 6), /* EMMC_DAT0 */
+ EMMC_REGS(40, 6, 7), /* EMMC_DAT1 */
+ EMMC_REGS(41, 6, 8), /* EMMC_DAT2 */
+ EMMC_REGS(42, 6, 9), /* EMMC_DAT3 */
+ EMMC_REGS(43, 6, 10), /* EMMC_DAT4 */
+ EMMC_REGS(44, 6, 11), /* EMMC_DAT5 */
+ EMMC_REGS(45, 6, 12), /* EMMC_DAT6 */
+ EMMC_REGS(46, 6, 13), /* EMMC_DAT7 */
+};
+
+static struct pin_regs bcm2712_d0_aon_gpio_pin_regs[] = {
+ AON_GPIO_REGS(0, 3, 0, 5, 9),
+ AON_GPIO_REGS(1, 3, 1, 5, 10),
+ AON_GPIO_REGS(2, 3, 2, 5, 11),
+ AON_GPIO_REGS(3, 3, 3, 5, 12),
+ AON_GPIO_REGS(4, 3, 4, 5, 13),
+ AON_GPIO_REGS(5, 3, 5, 5, 14),
+ AON_GPIO_REGS(6, 3, 6, 6, 0),
+ AON_GPIO_REGS(8, 3, 7, 6, 1),
+ AON_GPIO_REGS(9, 4, 0, 6, 2),
+ AON_GPIO_REGS(12, 4, 1, 6, 3),
+ AON_GPIO_REGS(13, 4, 2, 6, 4),
+ AON_GPIO_REGS(14, 4, 3, 6, 5),
+ AON_SGPIO_REGS(0, 0, 0),
+ AON_SGPIO_REGS(1, 0, 1),
+ AON_SGPIO_REGS(2, 0, 2),
+ AON_SGPIO_REGS(3, 0, 3),
+ AON_SGPIO_REGS(4, 1, 0),
+ AON_SGPIO_REGS(5, 2, 0),
+};
+
+static const struct pinctrl_pin_desc bcm2712_d0_gpio_pins[] = {
+ GPIO_PIN(1),
+ GPIO_PIN(2),
+ GPIO_PIN(3),
+ GPIO_PIN(4),
+ GPIO_PIN(10),
+ GPIO_PIN(11),
+ GPIO_PIN(12),
+ GPIO_PIN(13),
+ GPIO_PIN(14),
+ GPIO_PIN(15),
+ GPIO_PIN(18),
+ GPIO_PIN(19),
+ GPIO_PIN(20),
+ GPIO_PIN(21),
+ GPIO_PIN(22),
+ GPIO_PIN(23),
+ GPIO_PIN(24),
+ GPIO_PIN(25),
+ GPIO_PIN(26),
+ GPIO_PIN(27),
+ GPIO_PIN(28),
+ GPIO_PIN(29),
+ GPIO_PIN(30),
+ GPIO_PIN(31),
+ GPIO_PIN(32),
+ GPIO_PIN(33),
+ GPIO_PIN(34),
+ GPIO_PIN(35),
+ PINCTRL_PIN(36, "emmc_cmd"),
+ PINCTRL_PIN(37, "emmc_ds"),
+ PINCTRL_PIN(38, "emmc_clk"),
+ PINCTRL_PIN(39, "emmc_dat0"),
+ PINCTRL_PIN(40, "emmc_dat1"),
+ PINCTRL_PIN(41, "emmc_dat2"),
+ PINCTRL_PIN(42, "emmc_dat3"),
+ PINCTRL_PIN(43, "emmc_dat4"),
+ PINCTRL_PIN(44, "emmc_dat5"),
+ PINCTRL_PIN(45, "emmc_dat6"),
+ PINCTRL_PIN(46, "emmc_dat7"),
+};
+
+static struct pinctrl_pin_desc bcm2712_d0_aon_gpio_pins[] = {
+ AON_GPIO_PIN(0), AON_GPIO_PIN(1), AON_GPIO_PIN(2), AON_GPIO_PIN(3),
+ AON_GPIO_PIN(4), AON_GPIO_PIN(5), AON_GPIO_PIN(6), AON_GPIO_PIN(8),
+ AON_GPIO_PIN(9), AON_GPIO_PIN(12), AON_GPIO_PIN(13), AON_GPIO_PIN(14),
+ AON_SGPIO_PIN(0), AON_SGPIO_PIN(1), AON_SGPIO_PIN(2),
+ AON_SGPIO_PIN(3), AON_SGPIO_PIN(4), AON_SGPIO_PIN(5),
+};
+
+static const char * const bcm2712_func_names[] = {
+ BRCMSTB_FUNC(gpio),
+ BRCMSTB_FUNC(alt1),
+ BRCMSTB_FUNC(alt2),
+ BRCMSTB_FUNC(alt3),
+ BRCMSTB_FUNC(alt4),
+ BRCMSTB_FUNC(alt5),
+ BRCMSTB_FUNC(alt6),
+ BRCMSTB_FUNC(alt7),
+ BRCMSTB_FUNC(alt8),
+ BRCMSTB_FUNC(aon_cpu_standbyb),
+ BRCMSTB_FUNC(aon_fp_4sec_resetb),
+ BRCMSTB_FUNC(aon_gpclk),
+ BRCMSTB_FUNC(aon_pwm),
+ BRCMSTB_FUNC(arm_jtag),
+ BRCMSTB_FUNC(aud_fs_clk0),
+ BRCMSTB_FUNC(avs_pmu_bsc),
+ BRCMSTB_FUNC(bsc_m0),
+ BRCMSTB_FUNC(bsc_m1),
+ BRCMSTB_FUNC(bsc_m2),
+ BRCMSTB_FUNC(bsc_m3),
+ BRCMSTB_FUNC(clk_observe),
+ BRCMSTB_FUNC(ctl_hdmi_5v),
+ BRCMSTB_FUNC(enet0),
+ BRCMSTB_FUNC(enet0_mii),
+ BRCMSTB_FUNC(enet0_rgmii),
+ BRCMSTB_FUNC(ext_sc_clk),
+ BRCMSTB_FUNC(fl0),
+ BRCMSTB_FUNC(fl1),
+ BRCMSTB_FUNC(gpclk0),
+ BRCMSTB_FUNC(gpclk1),
+ BRCMSTB_FUNC(gpclk2),
+ BRCMSTB_FUNC(hdmi_tx0_auto_i2c),
+ BRCMSTB_FUNC(hdmi_tx0_bsc),
+ BRCMSTB_FUNC(hdmi_tx1_auto_i2c),
+ BRCMSTB_FUNC(hdmi_tx1_bsc),
+ BRCMSTB_FUNC(i2s_in),
+ BRCMSTB_FUNC(i2s_out),
+ BRCMSTB_FUNC(ir_in),
+ BRCMSTB_FUNC(mtsif),
+ BRCMSTB_FUNC(mtsif_alt),
+ BRCMSTB_FUNC(mtsif_alt1),
+ BRCMSTB_FUNC(pdm),
+ BRCMSTB_FUNC(pkt),
+ BRCMSTB_FUNC(pm_led_out),
+ BRCMSTB_FUNC(sc0),
+ BRCMSTB_FUNC(sd0),
+ BRCMSTB_FUNC(sd2),
+ BRCMSTB_FUNC(sd_card_a),
+ BRCMSTB_FUNC(sd_card_b),
+ BRCMSTB_FUNC(sd_card_c),
+ BRCMSTB_FUNC(sd_card_d),
+ BRCMSTB_FUNC(sd_card_e),
+ BRCMSTB_FUNC(sd_card_f),
+ BRCMSTB_FUNC(sd_card_g),
+ BRCMSTB_FUNC(spdif_out),
+ BRCMSTB_FUNC(spi_m),
+ BRCMSTB_FUNC(spi_s),
+ BRCMSTB_FUNC(sr_edm_sense),
+ BRCMSTB_FUNC(te0),
+ BRCMSTB_FUNC(te1),
+ BRCMSTB_FUNC(tsio),
+ BRCMSTB_FUNC(uart0),
+ BRCMSTB_FUNC(uart1),
+ BRCMSTB_FUNC(uart2),
+ BRCMSTB_FUNC(usb_pwr),
+ BRCMSTB_FUNC(usb_vbus),
+ BRCMSTB_FUNC(uui),
+ BRCMSTB_FUNC(vc_i2c0),
+ BRCMSTB_FUNC(vc_i2c3),
+ BRCMSTB_FUNC(vc_i2c4),
+ BRCMSTB_FUNC(vc_i2c5),
+ BRCMSTB_FUNC(vc_i2csl),
+ BRCMSTB_FUNC(vc_pcm),
+ BRCMSTB_FUNC(vc_pwm0),
+ BRCMSTB_FUNC(vc_pwm1),
+ BRCMSTB_FUNC(vc_spi0),
+ BRCMSTB_FUNC(vc_spi3),
+ BRCMSTB_FUNC(vc_spi4),
+ BRCMSTB_FUNC(vc_spi5),
+ BRCMSTB_FUNC(vc_uart0),
+ BRCMSTB_FUNC(vc_uart2),
+ BRCMSTB_FUNC(vc_uart3),
+ BRCMSTB_FUNC(vc_uart4),
+};
+
+static const struct brcmstb_pin_funcs bcm2712_c0_aon_gpio_pin_funcs[] = {
+ BRCMSTB_PIN(0, ir_in, vc_spi0, vc_uart3, vc_i2c3, te0, vc_i2c0, _, _),
+ BRCMSTB_PIN(1, vc_pwm0, vc_spi0, vc_uart3, vc_i2c3, te1, aon_pwm, vc_i2c0, vc_pwm1),
+ BRCMSTB_PIN(2, vc_pwm0, vc_spi0, vc_uart3, ctl_hdmi_5v, fl0, aon_pwm, ir_in, vc_pwm1),
+ BRCMSTB_PIN(3, ir_in, vc_spi0, vc_uart3, aon_fp_4sec_resetb, fl1, sd_card_g, aon_gpclk, _),
+ BRCMSTB_PIN(4, gpclk0, vc_spi0, vc_i2csl, aon_gpclk, pm_led_out, aon_pwm, sd_card_g, vc_pwm0),
+ BRCMSTB_PIN(5, gpclk1, ir_in, vc_i2csl, clk_observe, aon_pwm, sd_card_g, vc_pwm0, _),
+ BRCMSTB_PIN(6, uart1, vc_uart4, gpclk2, ctl_hdmi_5v, vc_uart0, vc_spi3, _, _),
+ BRCMSTB_PIN(7, uart1, vc_uart4, gpclk0, aon_pwm, vc_uart0, vc_spi3, _, _),
+ BRCMSTB_PIN(8, uart1, vc_uart4, vc_i2csl, ctl_hdmi_5v, vc_uart0, vc_spi3, _, _),
+ BRCMSTB_PIN(9, uart1, vc_uart4, vc_i2csl, aon_pwm, vc_uart0, vc_spi3, _, _),
+ BRCMSTB_PIN(10, tsio, ctl_hdmi_5v, sc0, spdif_out, vc_spi5, usb_pwr, aon_gpclk, sd_card_f),
+ BRCMSTB_PIN(11, tsio, uart0, sc0, aud_fs_clk0, vc_spi5, usb_vbus, vc_uart2, sd_card_f),
+ BRCMSTB_PIN(12, tsio, uart0, vc_uart0, tsio, vc_spi5, usb_pwr, vc_uart2, sd_card_f),
+ BRCMSTB_PIN(13, bsc_m1, uart0, vc_uart0, uui, vc_spi5, arm_jtag, vc_uart2, vc_i2c3),
+ BRCMSTB_PIN(14, bsc_m1, uart0, vc_uart0, uui, vc_spi5, arm_jtag, vc_uart2, vc_i2c3),
+ BRCMSTB_PIN(15, ir_in, aon_fp_4sec_resetb, vc_uart0, pm_led_out, ctl_hdmi_5v, aon_pwm, aon_gpclk, _),
+ BRCMSTB_PIN(16, aon_cpu_standbyb, gpclk0, pm_led_out, ctl_hdmi_5v, vc_pwm0, usb_pwr, aud_fs_clk0, _),
+};
+
+static const struct brcmstb_pin_funcs bcm2712_c0_gpio_pin_funcs[] = {
+ BRCMSTB_PIN(0, bsc_m3, vc_i2c0, gpclk0, enet0, vc_pwm1, vc_spi0, ir_in, _),
+ BRCMSTB_PIN(1, bsc_m3, vc_i2c0, gpclk1, enet0, vc_pwm1, sr_edm_sense, vc_spi0, vc_uart3),
+ BRCMSTB_PIN(2, pdm, i2s_in, gpclk2, vc_spi4, pkt, vc_spi0, vc_uart3, _),
+ BRCMSTB_PIN(3, pdm, i2s_in, vc_spi4, pkt, vc_spi0, vc_uart3, _, _),
+ BRCMSTB_PIN(4, pdm, i2s_in, arm_jtag, vc_spi4, pkt, vc_spi0, vc_uart3, _),
+ BRCMSTB_PIN(5, pdm, vc_i2c3, arm_jtag, sd_card_e, vc_spi4, pkt, vc_pcm, vc_i2c5),
+ BRCMSTB_PIN(6, pdm, vc_i2c3, arm_jtag, sd_card_e, vc_spi4, pkt, vc_pcm, vc_i2c5),
+ BRCMSTB_PIN(7, i2s_out, spdif_out, arm_jtag, sd_card_e, vc_i2c3, enet0_rgmii, vc_pcm, vc_spi4),
+ BRCMSTB_PIN(8, i2s_out, aud_fs_clk0, arm_jtag, sd_card_e, vc_i2c3, enet0_mii, vc_pcm, vc_spi4),
+ BRCMSTB_PIN(9, i2s_out, aud_fs_clk0, arm_jtag, sd_card_e, enet0_mii, sd_card_c, vc_spi4, _),
+ BRCMSTB_PIN(10, bsc_m3, mtsif_alt1, i2s_in, i2s_out, vc_spi5, enet0_mii, sd_card_c, vc_spi4),
+ BRCMSTB_PIN(11, bsc_m3, mtsif_alt1, i2s_in, i2s_out, vc_spi5, enet0_mii, sd_card_c, vc_spi4),
+ BRCMSTB_PIN(12, spi_s, mtsif_alt1, i2s_in, i2s_out, vc_spi5, vc_i2csl, sd0, sd_card_d),
+ BRCMSTB_PIN(13, spi_s, mtsif_alt1, i2s_out, usb_vbus, vc_spi5, vc_i2csl, sd0, sd_card_d),
+ BRCMSTB_PIN(14, spi_s, vc_i2csl, enet0_rgmii, arm_jtag, vc_spi5, vc_pwm0, vc_i2c4, sd_card_d),
+ BRCMSTB_PIN(15, spi_s, vc_i2csl, vc_spi3, arm_jtag, vc_pwm0, vc_i2c4, gpclk0, _),
+ BRCMSTB_PIN(16, sd_card_b, i2s_out, vc_spi3, i2s_in, sd0, enet0_rgmii, gpclk1, _),
+ BRCMSTB_PIN(17, sd_card_b, i2s_out, vc_spi3, i2s_in, ext_sc_clk, sd0, enet0_rgmii, gpclk2),
+ BRCMSTB_PIN(18, sd_card_b, i2s_out, vc_spi3, i2s_in, sd0, enet0_rgmii, vc_pwm1, _),
+ BRCMSTB_PIN(19, sd_card_b, usb_pwr, vc_spi3, pkt, spdif_out, sd0, ir_in, vc_pwm1),
+ BRCMSTB_PIN(20, sd_card_b, uui, vc_uart0, arm_jtag, uart2, usb_pwr, vc_pcm, vc_uart4),
+ BRCMSTB_PIN(21, usb_pwr, uui, vc_uart0, arm_jtag, uart2, sd_card_b, vc_pcm, vc_uart4),
+ BRCMSTB_PIN(22, usb_pwr, enet0, vc_uart0, mtsif, uart2, usb_vbus, vc_pcm, vc_i2c5),
+ BRCMSTB_PIN(23, usb_vbus, enet0, vc_uart0, mtsif, uart2, i2s_out, vc_pcm, vc_i2c5),
+ BRCMSTB_PIN(24, mtsif, pkt, uart0, enet0_rgmii, enet0_rgmii, vc_i2c4, vc_uart3, _),
+ BRCMSTB_PIN(25, mtsif, pkt, sc0, uart0, enet0_rgmii, enet0_rgmii, vc_i2c4, vc_uart3),
+ BRCMSTB_PIN(26, mtsif, pkt, sc0, uart0, enet0_rgmii, vc_uart4, vc_spi5, _),
+ BRCMSTB_PIN(27, mtsif, pkt, sc0, uart0, enet0_rgmii, vc_uart4, vc_spi5, _),
+ BRCMSTB_PIN(28, mtsif, pkt, sc0, enet0_rgmii, vc_uart4, vc_spi5, _, _),
+ BRCMSTB_PIN(29, mtsif, pkt, sc0, enet0_rgmii, vc_uart4, vc_spi5, _, _),
+ BRCMSTB_PIN(30, mtsif, pkt, sc0, sd2, enet0_rgmii, gpclk0, vc_pwm0, _),
+ BRCMSTB_PIN(31, mtsif, pkt, sc0, sd2, enet0_rgmii, vc_spi3, vc_pwm0, _),
+ BRCMSTB_PIN(32, mtsif, pkt, sc0, sd2, enet0_rgmii, vc_spi3, vc_uart3, _),
+ BRCMSTB_PIN(33, mtsif, pkt, sd2, enet0_rgmii, vc_spi3, vc_uart3, _, _),
+ BRCMSTB_PIN(34, mtsif, pkt, ext_sc_clk, sd2, enet0_rgmii, vc_spi3, vc_i2c5, _),
+ BRCMSTB_PIN(35, mtsif, pkt, sd2, enet0_rgmii, vc_spi3, vc_i2c5, _, _),
+ BRCMSTB_PIN(36, sd0, mtsif, sc0, i2s_in, vc_uart3, vc_uart2, _, _),
+ BRCMSTB_PIN(37, sd0, mtsif, sc0, vc_spi0, i2s_in, vc_uart3, vc_uart2, _),
+ BRCMSTB_PIN(38, sd0, mtsif_alt, sc0, vc_spi0, i2s_in, vc_uart3, vc_uart2, _),
+ BRCMSTB_PIN(39, sd0, mtsif_alt, sc0, vc_spi0, vc_uart3, vc_uart2, _, _),
+ BRCMSTB_PIN(40, sd0, mtsif_alt, sc0, vc_spi0, bsc_m3, _, _, _),
+ BRCMSTB_PIN(41, sd0, mtsif_alt, sc0, vc_spi0, bsc_m3, _, _, _),
+ BRCMSTB_PIN(42, vc_spi0, mtsif_alt, vc_i2c0, sd_card_a, mtsif_alt1, arm_jtag, pdm, spi_m),
+ BRCMSTB_PIN(43, vc_spi0, mtsif_alt, vc_i2c0, sd_card_a, mtsif_alt1, arm_jtag, pdm, spi_m),
+ BRCMSTB_PIN(44, vc_spi0, mtsif_alt, enet0, sd_card_a, mtsif_alt1, arm_jtag, pdm, spi_m),
+ BRCMSTB_PIN(45, vc_spi0, mtsif_alt, enet0, sd_card_a, mtsif_alt1, arm_jtag, pdm, spi_m),
+ BRCMSTB_PIN(46, vc_spi0, mtsif_alt, sd_card_a, mtsif_alt1, arm_jtag, pdm, spi_m, _),
+ BRCMSTB_PIN(47, enet0, mtsif_alt, i2s_out, mtsif_alt1, arm_jtag, _, _, _),
+ BRCMSTB_PIN(48, sc0, usb_pwr, spdif_out, mtsif, _, _, _, _),
+ BRCMSTB_PIN(49, sc0, usb_pwr, aud_fs_clk0, mtsif, _, _, _, _),
+ BRCMSTB_PIN(50, sc0, usb_vbus, sc0, _, _, _, _, _),
+ BRCMSTB_PIN(51, sc0, enet0, sc0, sr_edm_sense, _, _, _, _),
+ BRCMSTB_PIN(52, sc0, enet0, vc_pwm1, _, _, _, _, _),
+ BRCMSTB_PIN(53, sc0, enet0_rgmii, ext_sc_clk, _, _, _, _, _),
+};
+
+static const struct brcmstb_pin_funcs bcm2712_d0_aon_gpio_pin_funcs[] = {
+ BRCMSTB_PIN(0, ir_in, vc_spi0, vc_uart0, vc_i2c3, uart0, vc_i2c0, _, _),
+ BRCMSTB_PIN(1, vc_pwm0, vc_spi0, vc_uart0, vc_i2c3, uart0, aon_pwm, vc_i2c0, vc_pwm1),
+ BRCMSTB_PIN(2, vc_pwm0, vc_spi0, vc_uart0, ctl_hdmi_5v, uart0, aon_pwm, ir_in, vc_pwm1),
+ BRCMSTB_PIN(3, ir_in, vc_spi0, vc_uart0, uart0, sd_card_g, aon_gpclk, _, _),
+ BRCMSTB_PIN(4, gpclk0, vc_spi0, pm_led_out, aon_pwm, sd_card_g, vc_pwm0, _, _),
+ BRCMSTB_PIN(5, gpclk1, ir_in, aon_pwm, sd_card_g, vc_pwm0, _, _, _),
+ BRCMSTB_PIN(6, uart1, vc_uart2, ctl_hdmi_5v, gpclk2, vc_spi3, _, _, _),
+ BRCMSTB_PIN(7, _, _, _, _, _, _, _, _), /* non-existent on D0 silicon */
+ BRCMSTB_PIN(8, uart1, vc_uart2, ctl_hdmi_5v, vc_spi0, vc_spi3, _, _, _),
+ BRCMSTB_PIN(9, uart1, vc_uart2, vc_uart0, aon_pwm, vc_spi0, vc_uart2, vc_spi3, _),
+ BRCMSTB_PIN(10, _, _, _, _, _, _, _, _), /* non-existent on D0 silicon */
+ BRCMSTB_PIN(11, _, _, _, _, _, _, _, _), /* non-existent on D0 silicon */
+ BRCMSTB_PIN(12, uart1, vc_uart2, vc_uart0, vc_spi0, usb_pwr, vc_uart2, vc_spi3, _),
+ BRCMSTB_PIN(13, bsc_m1, vc_uart0, uui, vc_spi0, arm_jtag, vc_uart2, vc_i2c3, _),
+ BRCMSTB_PIN(14, bsc_m1, aon_gpclk, vc_uart0, uui, vc_spi0, arm_jtag, vc_uart2, vc_i2c3),
+};
+
+static const struct brcmstb_pin_funcs bcm2712_d0_gpio_pin_funcs[] = {
+ BRCMSTB_PIN(1, vc_i2c0, usb_pwr, gpclk0, sd_card_e, vc_spi3, sr_edm_sense, vc_spi0, vc_uart0),
+ BRCMSTB_PIN(2, vc_i2c0, usb_pwr, gpclk1, sd_card_e, vc_spi3, clk_observe, vc_spi0, vc_uart0),
+ BRCMSTB_PIN(3, vc_i2c3, usb_vbus, gpclk2, sd_card_e, vc_spi3, vc_spi0, vc_uart0, _),
+ BRCMSTB_PIN(4, vc_i2c3, vc_pwm1, vc_spi3, sd_card_e, vc_spi3, vc_spi0, vc_uart0, _),
+ BRCMSTB_PIN(10, bsc_m3, vc_pwm1, vc_spi3, sd_card_e, vc_spi3, gpclk0, _, _),
+ BRCMSTB_PIN(11, bsc_m3, vc_spi3, clk_observe, sd_card_c, gpclk1, _, _, _),
+ BRCMSTB_PIN(12, spi_s, vc_spi3, sd_card_c, sd_card_d, _, _, _, _),
+ BRCMSTB_PIN(13, spi_s, vc_spi3, sd_card_c, sd_card_d, _, _, _, _),
+ BRCMSTB_PIN(14, spi_s, uui, arm_jtag, vc_pwm0, vc_i2c0, sd_card_d, _, _),
+ BRCMSTB_PIN(15, spi_s, uui, arm_jtag, vc_pwm0, vc_i2c0, gpclk0, _, _),
+ BRCMSTB_PIN(18, sd_card_f, vc_pwm1, _, _, _, _, _, _),
+ BRCMSTB_PIN(19, sd_card_f, usb_pwr, vc_pwm1, _, _, _, _, _),
+ BRCMSTB_PIN(20, vc_i2c3, uui, vc_uart0, arm_jtag, vc_uart2, _, _, _),
+ BRCMSTB_PIN(21, vc_i2c3, uui, vc_uart0, arm_jtag, vc_uart2, _, _, _),
+ BRCMSTB_PIN(22, sd_card_f, vc_uart0, vc_i2c3, _, _, _, _, _),
+ BRCMSTB_PIN(23, vc_uart0, vc_i2c3, _, _, _, _, _, _),
+ BRCMSTB_PIN(24, sd_card_b, vc_spi0, arm_jtag, uart0, usb_pwr, vc_uart2, vc_uart0, _),
+ BRCMSTB_PIN(25, sd_card_b, vc_spi0, arm_jtag, uart0, usb_pwr, vc_uart2, vc_uart0, _),
+ BRCMSTB_PIN(26, sd_card_b, vc_spi0, arm_jtag, uart0, usb_vbus, vc_uart2, vc_spi0, _),
+ BRCMSTB_PIN(27, sd_card_b, vc_spi0, arm_jtag, uart0, vc_uart2, vc_spi0, _, _),
+ BRCMSTB_PIN(28, sd_card_b, vc_spi0, arm_jtag, vc_i2c0, vc_spi0, _, _, _),
+ BRCMSTB_PIN(29, arm_jtag, vc_i2c0, vc_spi0, _, _, _, _, _),
+ BRCMSTB_PIN(30, sd2, gpclk0, vc_pwm0, _, _, _, _, _),
+ BRCMSTB_PIN(31, sd2, vc_spi3, vc_pwm0, _, _, _, _, _),
+ BRCMSTB_PIN(32, sd2, vc_spi3, vc_uart3, _, _, _, _, _),
+ BRCMSTB_PIN(33, sd2, vc_spi3, vc_uart3, _, _, _, _, _),
+ BRCMSTB_PIN(34, sd2, vc_spi3, vc_i2c5, _, _, _, _, _),
+ BRCMSTB_PIN(35, sd2, vc_spi3, vc_i2c5, _, _, _, _, _),
+};
+
+static const struct pinctrl_desc bcm2712_c0_pinctrl_desc = {
+ .name = "pinctrl-bcm2712",
+ .pins = bcm2712_c0_gpio_pins,
+ .npins = ARRAY_SIZE(bcm2712_c0_gpio_pins),
+};
+
+static const struct pinctrl_desc bcm2712_c0_aon_pinctrl_desc = {
+ .name = "aon-pinctrl-bcm2712",
+ .pins = bcm2712_c0_aon_gpio_pins,
+ .npins = ARRAY_SIZE(bcm2712_c0_aon_gpio_pins),
+};
+
+static const struct pinctrl_desc bcm2712_d0_pinctrl_desc = {
+ .name = "pinctrl-bcm2712",
+ .pins = bcm2712_d0_gpio_pins,
+ .npins = ARRAY_SIZE(bcm2712_d0_gpio_pins),
+};
+
+static const struct pinctrl_desc bcm2712_d0_aon_pinctrl_desc = {
+ .name = "aon-pinctrl-bcm2712",
+ .pins = bcm2712_d0_aon_gpio_pins,
+ .npins = ARRAY_SIZE(bcm2712_d0_aon_gpio_pins),
+};
+
+static const struct pinctrl_gpio_range bcm2712_c0_pinctrl_gpio_range = {
+ .name = "pinctrl-bcm2712",
+ .npins = ARRAY_SIZE(bcm2712_c0_gpio_pins),
+};
+
+static const struct pinctrl_gpio_range bcm2712_c0_aon_pinctrl_gpio_range = {
+ .name = "aon-pinctrl-bcm2712",
+ .npins = ARRAY_SIZE(bcm2712_c0_aon_gpio_pins),
+};
+
+static const struct pinctrl_gpio_range bcm2712_d0_pinctrl_gpio_range = {
+ .name = "pinctrl-bcm2712",
+ .npins = ARRAY_SIZE(bcm2712_d0_gpio_pins),
+};
+
+static const struct pinctrl_gpio_range bcm2712_d0_aon_pinctrl_gpio_range = {
+ .name = "aon-pinctrl-bcm2712",
+ .npins = ARRAY_SIZE(bcm2712_d0_aon_gpio_pins),
+};
+
+static const struct brcmstb_pdata bcm2712_c0_pdata = {
+ .pctl_desc = &bcm2712_c0_pinctrl_desc,
+ .gpio_range = &bcm2712_c0_pinctrl_gpio_range,
+ .pin_regs = bcm2712_c0_gpio_pin_regs,
+ .pin_funcs = bcm2712_c0_gpio_pin_funcs,
+ .func_count = func_count,
+ .func_gpio = func_gpio,
+ .func_names = bcm2712_func_names,
+};
+
+static const struct brcmstb_pdata bcm2712_c0_aon_pdata = {
+ .pctl_desc = &bcm2712_c0_aon_pinctrl_desc,
+ .gpio_range = &bcm2712_c0_aon_pinctrl_gpio_range,
+ .pin_regs = bcm2712_c0_aon_gpio_pin_regs,
+ .pin_funcs = bcm2712_c0_aon_gpio_pin_funcs,
+ .func_count = func_count,
+ .func_gpio = func_gpio,
+ .func_names = bcm2712_func_names,
+};
+
+static const struct brcmstb_pdata bcm2712_d0_pdata = {
+ .pctl_desc = &bcm2712_d0_pinctrl_desc,
+ .gpio_range = &bcm2712_d0_pinctrl_gpio_range,
+ .pin_regs = bcm2712_d0_gpio_pin_regs,
+ .pin_funcs = bcm2712_d0_gpio_pin_funcs,
+ .func_count = func_count,
+ .func_gpio = func_gpio,
+ .func_names = bcm2712_func_names,
+};
+
+static const struct brcmstb_pdata bcm2712_d0_aon_pdata = {
+ .pctl_desc = &bcm2712_d0_aon_pinctrl_desc,
+ .gpio_range = &bcm2712_d0_aon_pinctrl_gpio_range,
+ .pin_regs = bcm2712_d0_aon_gpio_pin_regs,
+ .pin_funcs = bcm2712_d0_aon_gpio_pin_funcs,
+ .func_count = func_count,
+ .func_gpio = func_gpio,
+ .func_names = bcm2712_func_names,
+};
+
+static int bcm2712_pinctrl_probe(struct platform_device *pdev)
+{
+ return brcmstb_pinctrl_probe(pdev);
+}
+
+static const struct of_device_id bcm2712_pinctrl_match[] = {
+ {
+ .compatible = "brcm,bcm2712c0-pinctrl",
+ .data = &bcm2712_c0_pdata
+ },
+ {
+ .compatible = "brcm,bcm2712c0-aon-pinctrl",
+ .data = &bcm2712_c0_aon_pdata
+ },
+
+ {
+ .compatible = "brcm,bcm2712d0-pinctrl",
+ .data = &bcm2712_d0_pdata
+ },
+ {
+ .compatible = "brcm,bcm2712d0-aon-pinctrl",
+ .data = &bcm2712_d0_aon_pdata
+ },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, bcm2712_pinctrl_match);
+
+static struct platform_driver bcm2712_pinctrl_driver = {
+ .probe = bcm2712_pinctrl_probe,
+ .driver = {
+ .name = "pinctrl-bcm2712",
+ .of_match_table = bcm2712_pinctrl_match,
+ .suppress_bind_attrs = true,
+ },
+};
+module_platform_driver(bcm2712_pinctrl_driver);
+
+MODULE_AUTHOR("Phil Elwell");
+MODULE_AUTHOR("Jonathan Bell");
+MODULE_AUTHOR("Ivan T. Ivanov");
+MODULE_AUTHOR("Andrea della Porta");
+MODULE_DESCRIPTION("Broadcom BCM2712 pinctrl driver");
+MODULE_LICENSE("GPL");
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Driver for Broadcom brcmstb GPIO units (pinctrl only)
+ *
+ * Copyright (C) 2024-2025 Ivan T. Ivanov, Andrea della Porta
+ * Copyright (C) 2021-3 Raspberry Pi Ltd.
+ * Copyright (C) 2012 Chris Boot, Simon Arlott, Stephen Warren
+ *
+ * Based heavily on the BCM2835 GPIO & pinctrl driver, which was inspired by:
+ * pinctrl-nomadik.c, please see original file for copyright information
+ * pinctrl-tegra.c, please see original file for copyright information
+ */
+
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/pinctrl/pinconf.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinmux.h>
+#include <linux/pinctrl/pinconf-generic.h>
+#include <linux/seq_file.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/cleanup.h>
+
+#include "pinctrl-brcmstb.h"
+
+#define BRCMSTB_PULL_NONE 0
+#define BRCMSTB_PULL_DOWN 1
+#define BRCMSTB_PULL_UP 2
+#define BRCMSTB_PULL_MASK 0x3
+
+#define BIT_TO_REG(b) (((b) >> 5) << 2)
+#define BIT_TO_SHIFT(b) ((b) & 0x1f)
+
+struct brcmstb_pinctrl {
+ struct device *dev;
+ void __iomem *base;
+ struct pinctrl_dev *pctl_dev;
+ struct pinctrl_desc pctl_desc;
+ const struct pin_regs *pin_regs;
+ const struct brcmstb_pin_funcs *pin_funcs;
+ const char * const *func_names;
+ unsigned int func_count;
+ unsigned int func_gpio;
+ const char *const *gpio_groups;
+ struct pinctrl_gpio_range gpio_range;
+ /* Protect FSEL registers */
+ spinlock_t fsel_lock;
+};
+
+static unsigned int brcmstb_pinctrl_fsel_get(struct brcmstb_pinctrl *pc,
+ unsigned int pin)
+{
+ u32 bit = pc->pin_regs[pin].mux_bit;
+ unsigned int func;
+ int fsel;
+ u32 val;
+
+ if (!bit)
+ return pc->func_gpio;
+
+ bit &= ~MUX_BIT_VALID;
+
+ val = readl(pc->base + BIT_TO_REG(bit));
+ fsel = (val >> BIT_TO_SHIFT(bit)) & pc->pin_funcs[pin].func_mask;
+ func = pc->pin_funcs[pin].funcs[fsel];
+
+ if (func >= pc->func_count)
+ func = fsel;
+
+ dev_dbg(pc->dev, "get %04x: %08x (%u => %s)\n",
+ BIT_TO_REG(bit), val, pin,
+ pc->func_names[func]);
+
+ return func;
+}
+
+static int brcmstb_pinctrl_fsel_set(struct brcmstb_pinctrl *pc,
+ unsigned int pin, unsigned int func)
+{
+ u32 bit = pc->pin_regs[pin].mux_bit, val, fsel_mask;
+ const u8 *pin_funcs;
+ int fsel;
+ int cur;
+ int i;
+
+ if (!bit || func >= pc->func_count)
+ return -EINVAL;
+
+ bit &= ~MUX_BIT_VALID;
+
+ fsel = pc->pin_funcs[pin].n_funcs + 1;
+ fsel_mask = pc->pin_funcs[pin].func_mask;
+
+ if (func >= fsel) {
+ /* Convert to an fsel number */
+ pin_funcs = pc->pin_funcs[pin].funcs;
+ for (i = 1; i < fsel; i++) {
+ if (pin_funcs[i - 1] == func) {
+ fsel = i;
+ break;
+ }
+ }
+ } else {
+ fsel = func;
+ }
+
+ if (fsel >= pc->pin_funcs[pin].n_funcs + 1)
+ return -EINVAL;
+
+ guard(spinlock_irqsave)(&pc->fsel_lock);
+
+ val = readl(pc->base + BIT_TO_REG(bit));
+ cur = (val >> BIT_TO_SHIFT(bit)) & fsel_mask;
+
+ dev_dbg(pc->dev, "read %04x: %08x (%u => %s)\n",
+ BIT_TO_REG(bit), val, pin,
+ pc->func_names[cur]);
+
+ if (cur != fsel) {
+ val &= ~(fsel_mask << BIT_TO_SHIFT(bit));
+ val |= fsel << BIT_TO_SHIFT(bit);
+
+ dev_dbg(pc->dev, "write %04x: %08x (%u <= %s)\n",
+ BIT_TO_REG(bit), val, pin,
+ pc->func_names[fsel]);
+ writel(val, pc->base + BIT_TO_REG(bit));
+ }
+
+ return 0;
+}
+
+static int brcmstb_pctl_get_groups_count(struct pinctrl_dev *pctldev)
+{
+ struct brcmstb_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev);
+
+ return pc->pctl_desc.npins;
+}
+
+static const char *brcmstb_pctl_get_group_name(struct pinctrl_dev *pctldev,
+ unsigned int selector)
+{
+ struct brcmstb_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev);
+
+ return pc->gpio_groups[selector];
+}
+
+static int brcmstb_pctl_get_group_pins(struct pinctrl_dev *pctldev,
+ unsigned int selector,
+ const unsigned int **pins,
+ unsigned int *num_pins)
+{
+ struct brcmstb_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev);
+
+ *pins = &pc->pctl_desc.pins[selector].number;
+ *num_pins = 1;
+
+ return 0;
+}
+
+static void brcmstb_pctl_pin_dbg_show(struct pinctrl_dev *pctldev,
+ struct seq_file *s, unsigned int offset)
+{
+ struct brcmstb_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev);
+ unsigned int fsel = brcmstb_pinctrl_fsel_get(pc, offset);
+ const char *fname = pc->func_names[fsel];
+
+ seq_printf(s, "function %s", fname);
+}
+
+static void brcmstb_pctl_dt_free_map(struct pinctrl_dev *pctldev,
+ struct pinctrl_map *maps,
+ unsigned int num_maps)
+{
+ int i;
+
+ for (i = 0; i < num_maps; i++)
+ if (maps[i].type == PIN_MAP_TYPE_CONFIGS_PIN)
+ kfree(maps[i].data.configs.configs);
+
+ kfree(maps);
+}
+
+static const struct pinctrl_ops brcmstb_pctl_ops = {
+ .get_groups_count = brcmstb_pctl_get_groups_count,
+ .get_group_name = brcmstb_pctl_get_group_name,
+ .get_group_pins = brcmstb_pctl_get_group_pins,
+ .pin_dbg_show = brcmstb_pctl_pin_dbg_show,
+ .dt_node_to_map = pinconf_generic_dt_node_to_map_all,
+ .dt_free_map = brcmstb_pctl_dt_free_map,
+};
+
+static int brcmstb_pmx_free(struct pinctrl_dev *pctldev, unsigned int offset)
+{
+ struct brcmstb_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev);
+
+ /* disable by setting to GPIO */
+ return brcmstb_pinctrl_fsel_set(pc, offset, pc->func_gpio);
+}
+
+static int brcmstb_pmx_get_functions_count(struct pinctrl_dev *pctldev)
+{
+ struct brcmstb_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev);
+
+ return pc->func_count;
+}
+
+static const char *brcmstb_pmx_get_function_name(struct pinctrl_dev *pctldev,
+ unsigned int selector)
+{
+ struct brcmstb_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev);
+
+ return (selector < pc->func_count) ? pc->func_names[selector] : NULL;
+}
+
+static int brcmstb_pmx_get_function_groups(struct pinctrl_dev *pctldev,
+ unsigned int selector,
+ const char *const **groups,
+ unsigned *const num_groups)
+{
+ struct brcmstb_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev);
+
+ *groups = pc->gpio_groups;
+ *num_groups = pc->pctl_desc.npins;
+
+ return 0;
+}
+
+static int brcmstb_pmx_set(struct pinctrl_dev *pctldev,
+ unsigned int func_selector,
+ unsigned int group_selector)
+{
+ struct brcmstb_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev);
+ const struct pinctrl_desc *pctldesc = &pc->pctl_desc;
+ const struct pinctrl_pin_desc *pindesc;
+
+ if (group_selector >= pctldesc->npins)
+ return -EINVAL;
+
+ pindesc = &pctldesc->pins[group_selector];
+ return brcmstb_pinctrl_fsel_set(pc, pindesc->number, func_selector);
+}
+
+static int brcmstb_pmx_gpio_request_enable(struct pinctrl_dev *pctldev,
+ struct pinctrl_gpio_range *range,
+ unsigned int pin)
+{
+ struct brcmstb_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev);
+
+ return brcmstb_pinctrl_fsel_set(pc, pin, pc->func_gpio);
+}
+
+static void brcmstb_pmx_gpio_disable_free(struct pinctrl_dev *pctldev,
+ struct pinctrl_gpio_range *range,
+ unsigned int offset)
+{
+ struct brcmstb_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev);
+
+ /* disable by setting to GPIO */
+ (void)brcmstb_pinctrl_fsel_set(pc, offset, pc->func_gpio);
+}
+
+static bool brcmstb_pmx_function_is_gpio(struct pinctrl_dev *pctldev,
+ unsigned int selector)
+{
+ struct brcmstb_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev);
+
+ return pc->func_gpio == selector;
+}
+
+static const struct pinmux_ops brcmstb_pmx_ops = {
+ .free = brcmstb_pmx_free,
+ .get_functions_count = brcmstb_pmx_get_functions_count,
+ .get_function_name = brcmstb_pmx_get_function_name,
+ .get_function_groups = brcmstb_pmx_get_function_groups,
+ .set_mux = brcmstb_pmx_set,
+ .gpio_request_enable = brcmstb_pmx_gpio_request_enable,
+ .gpio_disable_free = brcmstb_pmx_gpio_disable_free,
+ .function_is_gpio = brcmstb_pmx_function_is_gpio,
+ .strict = true,
+};
+
+static unsigned int brcmstb_pull_config_get(struct brcmstb_pinctrl *pc,
+ unsigned int pin)
+{
+ u32 bit = pc->pin_regs[pin].pad_bit, val;
+
+ if (bit == PAD_BIT_INVALID)
+ return BRCMSTB_PULL_NONE;
+
+ val = readl(pc->base + BIT_TO_REG(bit));
+ return (val >> BIT_TO_SHIFT(bit)) & BRCMSTB_PULL_MASK;
+}
+
+static int brcmstb_pull_config_set(struct brcmstb_pinctrl *pc,
+ unsigned int pin, unsigned int arg)
+{
+ u32 bit = pc->pin_regs[pin].pad_bit, val;
+
+ if (bit == PAD_BIT_INVALID) {
+ dev_warn(pc->dev, "Can't set pulls for %s\n",
+ pc->gpio_groups[pin]);
+ return -EINVAL;
+ }
+
+ guard(spinlock_irqsave)(&pc->fsel_lock);
+
+ val = readl(pc->base + BIT_TO_REG(bit));
+ val &= ~(BRCMSTB_PULL_MASK << BIT_TO_SHIFT(bit));
+ val |= (arg << BIT_TO_SHIFT(bit));
+ writel(val, pc->base + BIT_TO_REG(bit));
+
+ return 0;
+}
+
+static int brcmstb_pinconf_get(struct pinctrl_dev *pctldev, unsigned int pin,
+ unsigned long *config)
+{
+ struct brcmstb_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev);
+ enum pin_config_param param = pinconf_to_config_param(*config);
+ u32 arg;
+
+ switch (param) {
+ case PIN_CONFIG_BIAS_DISABLE:
+ arg = (brcmstb_pull_config_get(pc, pin) == BRCMSTB_PULL_NONE);
+ break;
+ case PIN_CONFIG_BIAS_PULL_DOWN:
+ arg = (brcmstb_pull_config_get(pc, pin) == BRCMSTB_PULL_DOWN);
+ break;
+ case PIN_CONFIG_BIAS_PULL_UP:
+ arg = (brcmstb_pull_config_get(pc, pin) == BRCMSTB_PULL_UP);
+ break;
+ default:
+ return -ENOTSUPP;
+ }
+
+ *config = pinconf_to_config_packed(param, arg);
+
+ return 0;
+}
+
+static int brcmstb_pinconf_set(struct pinctrl_dev *pctldev,
+ unsigned int pin, unsigned long *configs,
+ unsigned int num_configs)
+{
+ struct brcmstb_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev);
+ int ret = 0;
+ u32 param;
+ int i;
+
+ for (i = 0; i < num_configs; i++) {
+ param = pinconf_to_config_param(configs[i]);
+
+ switch (param) {
+ case PIN_CONFIG_BIAS_DISABLE:
+ ret = brcmstb_pull_config_set(pc, pin, BRCMSTB_PULL_NONE);
+ break;
+ case PIN_CONFIG_BIAS_PULL_DOWN:
+ ret = brcmstb_pull_config_set(pc, pin, BRCMSTB_PULL_DOWN);
+ break;
+ case PIN_CONFIG_BIAS_PULL_UP:
+ ret = brcmstb_pull_config_set(pc, pin, BRCMSTB_PULL_UP);
+ break;
+ default:
+ return -ENOTSUPP;
+ }
+ }
+
+ return ret;
+}
+
+static const struct pinconf_ops brcmstb_pinconf_ops = {
+ .is_generic = true,
+ .pin_config_get = brcmstb_pinconf_get,
+ .pin_config_set = brcmstb_pinconf_set,
+};
+
+int brcmstb_pinctrl_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *np = dev->of_node;
+ const struct brcmstb_pdata *pdata;
+ struct brcmstb_pinctrl *pc;
+ const char **names;
+ int num_pins, i;
+
+ pdata = of_device_get_match_data(dev);
+
+ pc = devm_kzalloc(dev, sizeof(*pc), GFP_KERNEL);
+ if (!pc)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, pc);
+ pc->dev = dev;
+ spin_lock_init(&pc->fsel_lock);
+
+ pc->base = devm_of_iomap(dev, np, 0, NULL);
+ if (IS_ERR(pc->base))
+ return dev_err_probe(&pdev->dev, PTR_ERR(pc->base),
+ "Could not get IO memory\n");
+
+ pc->pctl_desc = *pdata->pctl_desc;
+ pc->pctl_desc.pctlops = &brcmstb_pctl_ops;
+ pc->pctl_desc.pmxops = &brcmstb_pmx_ops;
+ pc->pctl_desc.confops = &brcmstb_pinconf_ops;
+ pc->pctl_desc.owner = THIS_MODULE;
+ num_pins = pc->pctl_desc.npins;
+ names = devm_kmalloc_array(dev, num_pins, sizeof(const char *),
+ GFP_KERNEL);
+ if (!names)
+ return -ENOMEM;
+
+ for (i = 0; i < num_pins; i++)
+ names[i] = pc->pctl_desc.pins[i].name;
+
+ pc->gpio_groups = names;
+ pc->pin_regs = pdata->pin_regs;
+ pc->pin_funcs = pdata->pin_funcs;
+ pc->func_count = pdata->func_count;
+ pc->func_names = pdata->func_names;
+
+ pc->pctl_dev = devm_pinctrl_register(dev, &pc->pctl_desc, pc);
+ if (IS_ERR(pc->pctl_dev))
+ return dev_err_probe(&pdev->dev, PTR_ERR(pc->pctl_dev),
+ "Failed to register pinctrl device\n");
+
+ pc->gpio_range = *pdata->gpio_range;
+ pinctrl_add_gpio_range(pc->pctl_dev, &pc->gpio_range);
+
+ return 0;
+}
+EXPORT_SYMBOL(brcmstb_pinctrl_probe);
+
+MODULE_AUTHOR("Phil Elwell");
+MODULE_AUTHOR("Jonathan Bell");
+MODULE_AUTHOR("Ivan T. Ivanov");
+MODULE_AUTHOR("Andrea della Porta");
+MODULE_DESCRIPTION("Broadcom brcmstb pinctrl driver");
+MODULE_LICENSE("GPL");
projects / linux-2.6-microblaze.git / commitdiff