This driver provide pin muxing and configuration functionality for BCM2712 SoC used by RPi5. According to [1] this chips is incarnation of chip used in Broadcom STB product line. [1] https://lore.kernel.org/lkml/f6601f73-cb22-4ba3-88c5-241be8421fc3@xxxxxxxxxxxx/ Cc: Jonathan Bell <jonathan@xxxxxxxxxxxxxxx> Cc: Phil Elwell <phil@xxxxxxxxxxxxxxx> Signed-off-by: Ivan T. Ivanov <iivanov@xxxxxxx> --- drivers/pinctrl/bcm/Kconfig | 13 + drivers/pinctrl/bcm/Makefile | 1 + drivers/pinctrl/bcm/pinctrl-brcmstb.c | 1217 +++++++++++++++++++++++++ 3 files changed, 1231 insertions(+) create mode 100644 drivers/pinctrl/bcm/pinctrl-brcmstb.c diff --git a/drivers/pinctrl/bcm/Kconfig b/drivers/pinctrl/bcm/Kconfig index 35b51ce4298e..2e1b8d444f58 100644 --- a/drivers/pinctrl/bcm/Kconfig +++ b/drivers/pinctrl/bcm/Kconfig @@ -3,6 +3,19 @@ # Broadcom pinctrl drivers # +config PINCTRL_BRCMSTB + tristate "Broadcom STB product line pin controller driver" + depends on OF && (ARCH_BRCMSTB || COMPILE_TEST) + select PINMUX + select PINCONF + select GENERIC_PINCONF + help + This driver provide pin muxing and configuration functionality + for Broadcom STB product line chipsets. BCM2712 SoC is one of these + chipsets. + + If M is selected the module will be called pinctrl-brcmstb. + config PINCTRL_BCM281XX bool "Broadcom BCM281xx pinctrl driver" depends on OF && (ARCH_BCM_MOBILE || COMPILE_TEST) diff --git a/drivers/pinctrl/bcm/Makefile b/drivers/pinctrl/bcm/Makefile index 82b868ec1471..5f790c14cc4c 100644 --- a/drivers/pinctrl/bcm/Makefile +++ b/drivers/pinctrl/bcm/Makefile @@ -11,6 +11,7 @@ obj-$(CONFIG_PINCTRL_BCM6358) += pinctrl-bcm6358.o obj-$(CONFIG_PINCTRL_BCM6362) += pinctrl-bcm6362.o obj-$(CONFIG_PINCTRL_BCM6368) += pinctrl-bcm6368.o obj-$(CONFIG_PINCTRL_BCM63268) += pinctrl-bcm63268.o +obj-$(CONFIG_PINCTRL_BRCMSTB) += pinctrl-brcmstb.o obj-$(CONFIG_PINCTRL_IPROC_GPIO) += pinctrl-iproc-gpio.o obj-$(CONFIG_PINCTRL_CYGNUS_MUX) += pinctrl-cygnus-mux.o obj-$(CONFIG_PINCTRL_NS) += pinctrl-ns.o diff --git a/drivers/pinctrl/bcm/pinctrl-brcmstb.c b/drivers/pinctrl/bcm/pinctrl-brcmstb.c new file mode 100644 index 000000000000..143c8c2e1d6d --- /dev/null +++ b/drivers/pinctrl/bcm/pinctrl-brcmstb.c @@ -0,0 +1,1217 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Driver for Broadcom brcmstb GPIO units (pinctrl only) + * + * 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/platform_device.h> +#include <linux/seq_file.h> +#include <linux/slab.h> +#include <linux/spinlock.h> + +#define BRCMSTB_PULL_NONE 0 +#define BRCMSTB_PULL_DOWN 1 +#define BRCMSTB_PULL_UP 2 +#define BRCMSTB_PULL_MASK 0x3 + +#define BRCMSTB_FSEL_COUNT 9 +#define BRCMSTB_FSEL_MASK 0xf + +#define FUNC(f) \ + [func_##f] = #f + +#define PIN(i, f1, f2, f3, f4, f5, f6, f7, f8) \ + [i] = { \ + .funcs = { \ + func_##f1, \ + func_##f2, \ + func_##f3, \ + func_##f4, \ + func_##f5, \ + func_##f6, \ + func_##f7, \ + func_##f8, \ + }, \ + } + +#define MUX_BIT_VALID 0x8000 +#define REG_BIT_INVALID 0xffff + +#define BIT_TO_REG(b) (((b) >> 5) << 2) +#define BIT_TO_SHIFT(b) ((b) & 0x1f) + +#define MUX_BIT(mr, mb) (MUX_BIT_VALID + ((mr) * 4) * 8 + (mb) * 4) +#define GPIO_REGS(n, mr, mb, pr, pb) \ + [n] = { MUX_BIT(mr, mb), ((pr) * 4) * 8 + (pb) * 2 } + +#define EMMC_REGS(n, pr, pb) \ + [n] = { 0, ((pr) * 4) * 8 + (pb) * 2 } + +#define AGPIO_REGS(n, mr, mb, pr, pb) \ + [n] = { MUX_BIT(mr, mb), ((pr) * 4) * 8 + (pb) * 2 } + +#define SGPIO_REGS(n, mr, mb) \ + [(n) + 32] = { MUX_BIT(mr, mb), REG_BIT_INVALID } + +#define GPIO_PIN(a) PINCTRL_PIN(a, "gpio" #a) +#define AGPIO_PIN(a) PINCTRL_PIN(a, "aon_gpio" #a) +#define SGPIO_PIN(a) PINCTRL_PIN((a) + 32, "aon_sgpio" #a) + +struct pin_regs { + u16 mux_bit; + u16 pad_bit; +}; + +struct brcmstb_pin_funcs { + u8 funcs[BRCMSTB_FSEL_COUNT - 1]; +}; + +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 *gpio_groups; + struct pinctrl_gpio_range gpio_range; + /* Protect FSEL registers */ + spinlock_t lock; +}; + +struct brcmstb_pdata { + const struct pinctrl_desc *pctl_desc; + const struct pinctrl_gpio_range *gpio_range; + const struct pin_regs *pin_regs; + const struct brcmstb_pin_funcs *pin_funcs; +}; + +enum brcmstb_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[] = { + AGPIO_REGS(0, 3, 0, 6, 10), + AGPIO_REGS(1, 3, 1, 6, 11), + AGPIO_REGS(2, 3, 2, 6, 12), + AGPIO_REGS(3, 3, 3, 6, 13), + AGPIO_REGS(4, 3, 4, 6, 14), + AGPIO_REGS(5, 3, 5, 7, 0), + AGPIO_REGS(6, 3, 6, 7, 1), + AGPIO_REGS(7, 3, 7, 7, 2), + AGPIO_REGS(8, 4, 0, 7, 3), + AGPIO_REGS(9, 4, 1, 7, 4), + AGPIO_REGS(10, 4, 2, 7, 5), + AGPIO_REGS(11, 4, 3, 7, 6), + AGPIO_REGS(12, 4, 4, 7, 7), + AGPIO_REGS(13, 4, 5, 7, 8), + AGPIO_REGS(14, 4, 6, 7, 9), + AGPIO_REGS(15, 4, 7, 7, 10), + AGPIO_REGS(16, 5, 0, 7, 11), + SGPIO_REGS(0, 0, 0), + SGPIO_REGS(1, 0, 1), + SGPIO_REGS(2, 0, 2), + SGPIO_REGS(3, 0, 3), + SGPIO_REGS(4, 1, 0), + 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[] = { + AGPIO_PIN(0), AGPIO_PIN(1), AGPIO_PIN(2), AGPIO_PIN(3), + AGPIO_PIN(4), AGPIO_PIN(5), AGPIO_PIN(6), AGPIO_PIN(7), + AGPIO_PIN(8), AGPIO_PIN(9), AGPIO_PIN(10), AGPIO_PIN(11), + AGPIO_PIN(12), AGPIO_PIN(13), AGPIO_PIN(14), AGPIO_PIN(15), + AGPIO_PIN(16), SGPIO_PIN(0), SGPIO_PIN(1), SGPIO_PIN(2), + SGPIO_PIN(3), SGPIO_PIN(4), 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[] = { + AGPIO_REGS(0, 3, 0, 5, 9), + AGPIO_REGS(1, 3, 1, 5, 10), + AGPIO_REGS(2, 3, 2, 5, 11), + AGPIO_REGS(3, 3, 3, 5, 12), + AGPIO_REGS(4, 3, 4, 5, 13), + AGPIO_REGS(5, 3, 5, 5, 14), + AGPIO_REGS(6, 3, 6, 6, 0), + AGPIO_REGS(8, 3, 7, 6, 1), + AGPIO_REGS(9, 4, 0, 6, 2), + AGPIO_REGS(12, 4, 1, 6, 3), + AGPIO_REGS(13, 4, 2, 6, 4), + AGPIO_REGS(14, 4, 3, 6, 5), + SGPIO_REGS(0, 0, 0), + SGPIO_REGS(1, 0, 1), + SGPIO_REGS(2, 0, 2), + SGPIO_REGS(3, 0, 3), + SGPIO_REGS(4, 1, 0), + 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[] = { + AGPIO_PIN(0), AGPIO_PIN(1), AGPIO_PIN(2), AGPIO_PIN(3), AGPIO_PIN(4), + AGPIO_PIN(5), AGPIO_PIN(6), AGPIO_PIN(8), AGPIO_PIN(9), AGPIO_PIN(12), + AGPIO_PIN(13), AGPIO_PIN(14), SGPIO_PIN(0), SGPIO_PIN(1), SGPIO_PIN(2), + SGPIO_PIN(3), SGPIO_PIN(4), SGPIO_PIN(5), +}; + +static const char * const brcmstb_func_names[] = { + 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), +}; + +static const struct brcmstb_pin_funcs bcm2712_c0_aon_gpio_pin_funcs[] = { + PIN(0, ir_in, vc_spi0, vc_uart3, vc_i2c3, te0, vc_i2c0, _, _), + PIN(1, vc_pwm0, vc_spi0, vc_uart3, vc_i2c3, te1, aon_pwm, vc_i2c0, vc_pwm1), + PIN(2, vc_pwm0, vc_spi0, vc_uart3, ctl_hdmi_5v, fl0, aon_pwm, ir_in, vc_pwm1), + PIN(3, ir_in, vc_spi0, vc_uart3, aon_fp_4sec_resetb, fl1, sd_card_g, aon_gpclk, _), + PIN(4, gpclk0, vc_spi0, vc_i2csl, aon_gpclk, pm_led_out, aon_pwm, sd_card_g, vc_pwm0), + PIN(5, gpclk1, ir_in, vc_i2csl, clk_observe, aon_pwm, sd_card_g, vc_pwm0, _), + PIN(6, uart1, vc_uart4, gpclk2, ctl_hdmi_5v, vc_uart0, vc_spi3, _, _), + PIN(7, uart1, vc_uart4, gpclk0, aon_pwm, vc_uart0, vc_spi3, _, _), + PIN(8, uart1, vc_uart4, vc_i2csl, ctl_hdmi_5v, vc_uart0, vc_spi3, _, _), + PIN(9, uart1, vc_uart4, vc_i2csl, aon_pwm, vc_uart0, vc_spi3, _, _), + PIN(10, tsio, ctl_hdmi_5v, sc0, spdif_out, vc_spi5, usb_pwr, aon_gpclk, sd_card_f), + PIN(11, tsio, uart0, sc0, aud_fs_clk0, vc_spi5, usb_vbus, vc_uart2, sd_card_f), + PIN(12, tsio, uart0, vc_uart0, tsio, vc_spi5, usb_pwr, vc_uart2, sd_card_f), + PIN(13, bsc_m1, uart0, vc_uart0, uui, vc_spi5, arm_jtag, vc_uart2, vc_i2c3), + PIN(14, bsc_m1, uart0, vc_uart0, uui, vc_spi5, arm_jtag, vc_uart2, vc_i2c3), + PIN(15, ir_in, aon_fp_4sec_resetb, vc_uart0, pm_led_out, ctl_hdmi_5v, aon_pwm, aon_gpclk, _), + 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_aon_sgpio_pin_funcs[] = { + PIN(0, hdmi_tx0_bsc, hdmi_tx0_auto_i2c, bsc_m0, vc_i2c0, _, _, _, _), + PIN(1, hdmi_tx0_bsc, hdmi_tx0_auto_i2c, bsc_m0, vc_i2c0, _, _, _, _), + PIN(2, hdmi_tx1_bsc, hdmi_tx1_auto_i2c, bsc_m1, vc_i2c4, ctl_hdmi_5v, _, _, _), + PIN(3, hdmi_tx1_bsc, hdmi_tx1_auto_i2c, bsc_m1, vc_i2c4, _, _, _, _), + PIN(4, avs_pmu_bsc, bsc_m2, vc_i2c5, ctl_hdmi_5v, _, _, _, _), + PIN(5, avs_pmu_bsc, bsc_m2, vc_i2c5, _, _, _, _, _), +}; + +static const struct brcmstb_pin_funcs bcm2712_c0_gpio_pin_funcs[] = { + PIN(0, bsc_m3, vc_i2c0, gpclk0, enet0, vc_pwm1, vc_spi0, ir_in, _), + PIN(1, bsc_m3, vc_i2c0, gpclk1, enet0, vc_pwm1, sr_edm_sense, vc_spi0, vc_uart3), + PIN(2, pdm, i2s_in, gpclk2, vc_spi4, pkt, vc_spi0, vc_uart3, _), + PIN(3, pdm, i2s_in, vc_spi4, pkt, vc_spi0, vc_uart3, _, _), + PIN(4, pdm, i2s_in, arm_jtag, vc_spi4, pkt, vc_spi0, vc_uart3, _), + PIN(5, pdm, vc_i2c3, arm_jtag, sd_card_e, vc_spi4, pkt, vc_pcm, vc_i2c5), + PIN(6, pdm, vc_i2c3, arm_jtag, sd_card_e, vc_spi4, pkt, vc_pcm, vc_i2c5), + PIN(7, i2s_out, spdif_out, arm_jtag, sd_card_e, vc_i2c3, enet0_rgmii, vc_pcm, vc_spi4), + PIN(8, i2s_out, aud_fs_clk0, arm_jtag, sd_card_e, vc_i2c3, enet0_mii, vc_pcm, vc_spi4), + PIN(9, i2s_out, aud_fs_clk0, arm_jtag, sd_card_e, enet0_mii, sd_card_c, vc_spi4, _), + PIN(10, bsc_m3, mtsif_alt1, i2s_in, i2s_out, vc_spi5, enet0_mii, sd_card_c, vc_spi4), + PIN(11, bsc_m3, mtsif_alt1, i2s_in, i2s_out, vc_spi5, enet0_mii, sd_card_c, vc_spi4), + PIN(12, spi_s, mtsif_alt1, i2s_in, i2s_out, vc_spi5, vc_i2csl, sd0, sd_card_d), + PIN(13, spi_s, mtsif_alt1, i2s_out, usb_vbus, vc_spi5, vc_i2csl, sd0, sd_card_d), + PIN(14, spi_s, vc_i2csl, enet0_rgmii, arm_jtag, vc_spi5, vc_pwm0, vc_i2c4, sd_card_d), + PIN(15, spi_s, vc_i2csl, vc_spi3, arm_jtag, vc_pwm0, vc_i2c4, gpclk0, _), + PIN(16, sd_card_b, i2s_out, vc_spi3, i2s_in, sd0, enet0_rgmii, gpclk1, _), + PIN(17, sd_card_b, i2s_out, vc_spi3, i2s_in, ext_sc_clk, sd0, enet0_rgmii, gpclk2), + PIN(18, sd_card_b, i2s_out, vc_spi3, i2s_in, sd0, enet0_rgmii, vc_pwm1, _), + PIN(19, sd_card_b, usb_pwr, vc_spi3, pkt, spdif_out, sd0, ir_in, vc_pwm1), + PIN(20, sd_card_b, uui, vc_uart0, arm_jtag, uart2, usb_pwr, vc_pcm, vc_uart4), + PIN(21, usb_pwr, uui, vc_uart0, arm_jtag, uart2, sd_card_b, vc_pcm, vc_uart4), + PIN(22, usb_pwr, enet0, vc_uart0, mtsif, uart2, usb_vbus, vc_pcm, vc_i2c5), + PIN(23, usb_vbus, enet0, vc_uart0, mtsif, uart2, i2s_out, vc_pcm, vc_i2c5), + PIN(24, mtsif, pkt, uart0, enet0_rgmii, enet0_rgmii, vc_i2c4, vc_uart3, _), + PIN(25, mtsif, pkt, sc0, uart0, enet0_rgmii, enet0_rgmii, vc_i2c4, vc_uart3), + PIN(26, mtsif, pkt, sc0, uart0, enet0_rgmii, vc_uart4, vc_spi5, _), + PIN(27, mtsif, pkt, sc0, uart0, enet0_rgmii, vc_uart4, vc_spi5, _), + PIN(28, mtsif, pkt, sc0, enet0_rgmii, vc_uart4, vc_spi5, _, _), + PIN(29, mtsif, pkt, sc0, enet0_rgmii, vc_uart4, vc_spi5, _, _), + PIN(30, mtsif, pkt, sc0, sd2, enet0_rgmii, gpclk0, vc_pwm0, _), + PIN(31, mtsif, pkt, sc0, sd2, enet0_rgmii, vc_spi3, vc_pwm0, _), + PIN(32, mtsif, pkt, sc0, sd2, enet0_rgmii, vc_spi3, vc_uart3, _), + PIN(33, mtsif, pkt, sd2, enet0_rgmii, vc_spi3, vc_uart3, _, _), + PIN(34, mtsif, pkt, ext_sc_clk, sd2, enet0_rgmii, vc_spi3, vc_i2c5, _), + PIN(35, mtsif, pkt, sd2, enet0_rgmii, vc_spi3, vc_i2c5, _, _), + PIN(36, sd0, mtsif, sc0, i2s_in, vc_uart3, vc_uart2, _, _), + PIN(37, sd0, mtsif, sc0, vc_spi0, i2s_in, vc_uart3, vc_uart2, _), + PIN(38, sd0, mtsif_alt, sc0, vc_spi0, i2s_in, vc_uart3, vc_uart2, _), + PIN(39, sd0, mtsif_alt, sc0, vc_spi0, vc_uart3, vc_uart2, _, _), + PIN(40, sd0, mtsif_alt, sc0, vc_spi0, bsc_m3, _, _, _), + PIN(41, sd0, mtsif_alt, sc0, vc_spi0, bsc_m3, _, _, _), + PIN(42, vc_spi0, mtsif_alt, vc_i2c0, sd_card_a, mtsif_alt1, arm_jtag, pdm, spi_m), + PIN(43, vc_spi0, mtsif_alt, vc_i2c0, sd_card_a, mtsif_alt1, arm_jtag, pdm, spi_m), + PIN(44, vc_spi0, mtsif_alt, enet0, sd_card_a, mtsif_alt1, arm_jtag, pdm, spi_m), + PIN(45, vc_spi0, mtsif_alt, enet0, sd_card_a, mtsif_alt1, arm_jtag, pdm, spi_m), + PIN(46, vc_spi0, mtsif_alt, sd_card_a, mtsif_alt1, arm_jtag, pdm, spi_m, _), + PIN(47, enet0, mtsif_alt, i2s_out, mtsif_alt1, arm_jtag, _, _, _), + PIN(48, sc0, usb_pwr, spdif_out, mtsif, _, _, _, _), + PIN(49, sc0, usb_pwr, aud_fs_clk0, mtsif, _, _, _, _), + PIN(50, sc0, usb_vbus, sc0, _, _, _, _, _), + PIN(51, sc0, enet0, sc0, sr_edm_sense, _, _, _, _), + PIN(52, sc0, enet0, vc_pwm1, _, _, _, _, _), + PIN(53, sc0, enet0_rgmii, ext_sc_clk, _, _, _, _, _), +}; + +static const struct brcmstb_pin_funcs bcm2712_d0_aon_gpio_pin_funcs[] = { + PIN(0, ir_in, vc_spi0, vc_uart0, vc_i2c3, uart0, vc_i2c0, _, _), + PIN(1, vc_pwm0, vc_spi0, vc_uart0, vc_i2c3, uart0, aon_pwm, vc_i2c0, vc_pwm1), + PIN(2, vc_pwm0, vc_spi0, vc_uart0, ctl_hdmi_5v, uart0, aon_pwm, ir_in, vc_pwm1), + PIN(3, ir_in, vc_spi0, vc_uart0, uart0, sd_card_g, aon_gpclk, _, _), + PIN(4, gpclk0, vc_spi0, pm_led_out, aon_pwm, sd_card_g, vc_pwm0, _, _), + PIN(5, gpclk1, ir_in, aon_pwm, sd_card_g, vc_pwm0, _, _, _), + PIN(6, uart1, vc_uart2, ctl_hdmi_5v, gpclk2, vc_spi3, _, _, _), + PIN(7, _, _, _, _, _, _, _, _), + PIN(8, uart1, vc_uart2, ctl_hdmi_5v, vc_spi0, vc_spi3, _, _, _), + PIN(9, uart1, vc_uart2, vc_uart0, aon_pwm, vc_spi0, vc_uart2, vc_spi3, _), + PIN(10, _, _, _, _, _, _, _, _), + PIN(11, _, _, _, _, _, _, _, _), + PIN(12, uart1, vc_uart2, vc_uart0, vc_spi0, usb_pwr, vc_uart2, vc_spi3, _), + PIN(13, bsc_m1, vc_uart0, uui, vc_spi0, arm_jtag, vc_uart2, vc_i2c3, _), + 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_aon_sgpio_pin_funcs[] = { + PIN(0, hdmi_tx0_bsc, hdmi_tx0_auto_i2c, bsc_m0, vc_i2c0, _, _, _, _), + PIN(1, hdmi_tx0_bsc, hdmi_tx0_auto_i2c, bsc_m0, vc_i2c0, _, _, _, _), + PIN(2, hdmi_tx1_bsc, hdmi_tx1_auto_i2c, bsc_m1, vc_i2c0, ctl_hdmi_5v, _, _, _), + PIN(3, hdmi_tx1_bsc, hdmi_tx1_auto_i2c, bsc_m1, vc_i2c0, _, _, _, _), + PIN(4, avs_pmu_bsc, bsc_m2, vc_i2c3, ctl_hdmi_5v, _, _, _, _), + PIN(5, avs_pmu_bsc, bsc_m2, vc_i2c3, _, _, _, _, _), +}; + +static const struct brcmstb_pin_funcs bcm2712_d0_gpio_pin_funcs[] = { + PIN(1, vc_i2c0, usb_pwr, gpclk0, sd_card_e, vc_spi3, sr_edm_sense, vc_spi0, vc_uart0), + PIN(2, vc_i2c0, usb_pwr, gpclk1, sd_card_e, vc_spi3, clk_observe, vc_spi0, vc_uart0), + PIN(3, vc_i2c3, usb_vbus, gpclk2, sd_card_e, vc_spi3, vc_spi0, vc_uart0, _), + PIN(4, vc_i2c3, vc_pwm1, vc_spi3, sd_card_e, vc_spi3, vc_spi0, vc_uart0, _), + PIN(10, bsc_m3, vc_pwm1, vc_spi3, sd_card_e, vc_spi3, gpclk0, _, _), + PIN(11, bsc_m3, vc_spi3, clk_observe, sd_card_c, gpclk1, _, _, _), + PIN(12, spi_s, vc_spi3, sd_card_c, sd_card_d, _, _, _, _), + PIN(13, spi_s, vc_spi3, sd_card_c, sd_card_d, _, _, _, _), + PIN(14, spi_s, uui, arm_jtag, vc_pwm0, vc_i2c0, sd_card_d, _, _), + PIN(15, spi_s, uui, arm_jtag, vc_pwm0, vc_i2c0, gpclk0, _, _), + PIN(18, sd_card_f, vc_pwm1, _, _, _, _, _, _), + PIN(19, sd_card_f, usb_pwr, vc_pwm1, _, _, _, _, _), + PIN(20, vc_i2c3, uui, vc_uart0, arm_jtag, vc_uart2, _, _, _), + PIN(21, vc_i2c3, uui, vc_uart0, arm_jtag, vc_uart2, _, _, _), + PIN(22, sd_card_f, vc_uart0, vc_i2c3, _, _, _, _, _), + PIN(23, vc_uart0, vc_i2c3, _, _, _, _, _, _), + PIN(24, sd_card_b, vc_spi0, arm_jtag, uart0, usb_pwr, vc_uart2, vc_uart0, _), + PIN(25, sd_card_b, vc_spi0, arm_jtag, uart0, usb_pwr, vc_uart2, vc_uart0, _), + PIN(26, sd_card_b, vc_spi0, arm_jtag, uart0, usb_vbus, vc_uart2, vc_spi0, _), + PIN(27, sd_card_b, vc_spi0, arm_jtag, uart0, vc_uart2, vc_spi0, _, _), + PIN(28, sd_card_b, vc_spi0, arm_jtag, vc_i2c0, vc_spi0, _, _, _), + PIN(29, arm_jtag, vc_i2c0, vc_spi0, _, _, _, _, _), + PIN(30, sd2, gpclk0, vc_pwm0, _, _, _, _, _), + PIN(31, sd2, vc_spi3, vc_pwm0, _, _, _, _, _), + PIN(32, sd2, vc_spi3, vc_uart3, _, _, _, _, _), + PIN(33, sd2, vc_spi3, vc_uart3, _, _, _, _, _), + PIN(34, sd2, vc_spi3, vc_i2c5, _, _, _, _, _), + PIN(35, sd2, vc_spi3, vc_i2c5, _, _, _, _, _), +}; + +static inline u32 brcmstb_reg_rd(struct brcmstb_pinctrl *pc, unsigned int reg) +{ + return readl(pc->base + reg); +} + +static inline void brcmstb_reg_wr(struct brcmstb_pinctrl *pc, unsigned int reg, + u32 val) +{ + writel(val, pc->base + reg); +} + +static enum brcmstb_funcs brcmstb_pinctrl_fsel_get(struct brcmstb_pinctrl *pc, + unsigned int pin) +{ + u32 bit = pc->pin_regs[pin].mux_bit; + enum brcmstb_funcs func; + int fsel; + u32 val; + + if (!bit) + return func_gpio; + + bit &= ~MUX_BIT_VALID; + + val = brcmstb_reg_rd(pc, BIT_TO_REG(bit)); + fsel = (val >> BIT_TO_SHIFT(bit)) & BRCMSTB_FSEL_MASK; + func = pc->pin_funcs[pin].funcs[fsel]; + + if (func >= func_count) + func = (enum brcmstb_funcs)fsel; + + dev_dbg(pc->dev, "get %04x: %08x (%u => %s)\n", + BIT_TO_REG(bit), val, pin, + brcmstb_func_names[func]); + + return func; +} + +static void brcmstb_pinctrl_fsel_set(struct brcmstb_pinctrl *pc, + unsigned int pin, enum brcmstb_funcs func) +{ + u32 bit = pc->pin_regs[pin].mux_bit, val; + const u8 *pin_funcs; + unsigned long flags; + int fsel; + int cur; + int i; + + if (!bit || func >= func_count) + return; + + bit &= ~MUX_BIT_VALID; + + fsel = BRCMSTB_FSEL_COUNT; + + if (func >= BRCMSTB_FSEL_COUNT) { + /* Convert to an fsel number */ + pin_funcs = pc->pin_funcs[pin].funcs; + for (i = 1; i < BRCMSTB_FSEL_COUNT; i++) { + if (pin_funcs[i - 1] == func) { + fsel = i; + break; + } + } + } else { + fsel = (enum brcmstb_funcs)func; + } + + if (fsel >= BRCMSTB_FSEL_COUNT) + return; + + spin_lock_irqsave(&pc->lock, flags); + + val = brcmstb_reg_rd(pc, BIT_TO_REG(bit)); + cur = (val >> BIT_TO_SHIFT(bit)) & BRCMSTB_FSEL_MASK; + + dev_dbg(pc->dev, "read %04x: %08x (%u => %s)\n", + BIT_TO_REG(bit), val, pin, + brcmstb_func_names[cur]); + + if (cur != fsel) { + val &= ~(BRCMSTB_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, + brcmstb_func_names[fsel]); + brcmstb_reg_wr(pc, BIT_TO_REG(bit), val); + } + + spin_unlock_irqrestore(&pc->lock, flags); +} + +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); + enum brcmstb_funcs fsel = brcmstb_pinctrl_fsel_get(pc, offset); + const char *fname = brcmstb_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 */ + brcmstb_pinctrl_fsel_set(pc, offset, func_gpio); + return 0; +} + +static int brcmstb_pmx_get_functions_count(struct pinctrl_dev *pctldev) +{ + return func_count; +} + +static const char *brcmstb_pmx_get_function_name(struct pinctrl_dev *pctldev, + unsigned int selector) +{ + return (selector < func_count) ? brcmstb_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]; + brcmstb_pinctrl_fsel_set(pc, pindesc->number, func_selector); + + return 0; +} + +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); + + brcmstb_pinctrl_fsel_set(pc, pin, func_gpio); + + return 0; +} + +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 */ + brcmstb_pinctrl_fsel_set(pc, offset, func_gpio); +} + +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, +}; + +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 == REG_BIT_INVALID) + return BRCMSTB_PULL_NONE; + + val = brcmstb_reg_rd(pc, BIT_TO_REG(bit)); + return (val >> BIT_TO_SHIFT(bit)) & BRCMSTB_PULL_MASK; +} + +static void brcmstb_pull_config_set(struct brcmstb_pinctrl *pc, + unsigned int pin, unsigned int arg) +{ + u32 bit = pc->pin_regs[pin].pad_bit, val; + unsigned long flags; + + if (bit == REG_BIT_INVALID) { + dev_warn(pc->dev, "Can't set pulls for %s\n", + pc->gpio_groups[pin]); + return; + } + + spin_lock_irqsave(&pc->lock, flags); + + val = brcmstb_reg_rd(pc, BIT_TO_REG(bit)); + val &= ~(BRCMSTB_PULL_MASK << BIT_TO_SHIFT(bit)); + val |= (arg << BIT_TO_SHIFT(bit)); + brcmstb_reg_wr(pc, BIT_TO_REG(bit), val); + + spin_unlock_irqrestore(&pc->lock, flags); +} + +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); + u32 param, arg; + int i; + + for (i = 0; i < num_configs; i++) { + param = pinconf_to_config_param(configs[i]); + arg = pinconf_to_config_argument(configs[i]); + + switch (param) { + case PIN_CONFIG_BIAS_DISABLE: + brcmstb_pull_config_set(pc, pin, BRCMSTB_PULL_NONE); + break; + case PIN_CONFIG_BIAS_PULL_DOWN: + brcmstb_pull_config_set(pc, pin, BRCMSTB_PULL_DOWN); + break; + case PIN_CONFIG_BIAS_PULL_UP: + brcmstb_pull_config_set(pc, pin, BRCMSTB_PULL_UP); + break; + default: + return -ENOTSUPP; + } + } + + return 0; +} + +static const struct pinconf_ops brcmstb_pinconf_ops = { + .is_generic = true, + .pin_config_get = brcmstb_pinconf_get, + .pin_config_set = brcmstb_pinconf_set, +}; + +static const struct pinctrl_desc bcm2712_c0_pinctrl_desc = { + .name = "pinctrl-bcm2712", + .pins = bcm2712_c0_gpio_pins, + .npins = ARRAY_SIZE(bcm2712_c0_gpio_pins), + .pctlops = &brcmstb_pctl_ops, + .pmxops = &brcmstb_pmx_ops, + .confops = &brcmstb_pinconf_ops, + .owner = THIS_MODULE, +}; + +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), + .pctlops = &brcmstb_pctl_ops, + .pmxops = &brcmstb_pmx_ops, + .confops = &brcmstb_pinconf_ops, + .owner = THIS_MODULE, +}; + +static const struct pinctrl_desc bcm2712_d0_pinctrl_desc = { + .name = "pinctrl-bcm2712", + .pins = bcm2712_d0_gpio_pins, + .npins = ARRAY_SIZE(bcm2712_d0_gpio_pins), + .pctlops = &brcmstb_pctl_ops, + .pmxops = &brcmstb_pmx_ops, + .confops = &brcmstb_pinconf_ops, + .owner = THIS_MODULE, +}; + +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), + .pctlops = &brcmstb_pctl_ops, + .pmxops = &brcmstb_pmx_ops, + .confops = &brcmstb_pinconf_ops, + .owner = THIS_MODULE, +}; + +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, +}; + +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, +}; + +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, +}; + +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, +}; + +static const struct of_device_id brcmstb_pinctrl_match[] = { + { + .compatible = "brcm,bcm2712-pinctrl", + .data = &bcm2712_c0_pdata + }, + { + .compatible = "brcm,bcm2712-aon-pinctrl", + .data = &bcm2712_c0_aon_pdata + }, + + { + .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 */ } +}; + +static 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; + const struct of_device_id *match; + struct brcmstb_pinctrl *pc; + const char **names; + int num_pins, i; + + match = of_match_node(brcmstb_pinctrl_match, np); + pdata = match->data; + + pc = devm_kzalloc(dev, sizeof(*pc), GFP_KERNEL); + if (!pc) + return -ENOMEM; + + platform_set_drvdata(pdev, pc); + pc->dev = dev; + spin_lock_init(&pc->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; + 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->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; +} + +static struct platform_driver brcmstb_pinctrl_driver = { + .probe = brcmstb_pinctrl_probe, + .driver = { + .name = "pinctrl-brcmstb", + .of_match_table = brcmstb_pinctrl_match, + .suppress_bind_attrs = true, + }, +}; +module_platform_driver(brcmstb_pinctrl_driver); + +MODULE_AUTHOR("Phil Elwell"); +MODULE_AUTHOR("Jonathan Bell"); +MODULE_AUTHOR("Ivan T. Ivanov"); +MODULE_DESCRIPTION("Broadcom brcmstb pinctrl driver"); +MODULE_LICENSE("GPL"); -- 2.43.0
