--- /dev/null
+From f7e322d99f1180270fb4a3e1ae992b3116cfcf34 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Mon, 24 Jan 2022 11:22:43 +0100
+Subject: [PATCH] pinctrl: bcm: add driver for BCM4908 pinmux
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+BCM4908 has its own pins layout so it needs a custom binding and a Linux
+driver.
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
+Link: https://lore.kernel.org/r/20220124102243.14912-2-zajec5@gmail.com
+Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
+---
+ MAINTAINERS | 1 +
+ drivers/pinctrl/bcm/Kconfig | 14 +
+ drivers/pinctrl/bcm/Makefile | 1 +
+ drivers/pinctrl/bcm/pinctrl-bcm4908.c | 563 ++++++++++++++++++++++++++
+ 4 files changed, 579 insertions(+)
+ create mode 100644 drivers/pinctrl/bcm/pinctrl-bcm4908.c
+
+--- a/MAINTAINERS
++++ b/MAINTAINERS
+@@ -3222,6 +3222,7 @@ M: bcm-kernel-feedback-list@broadcom.com
+ L: linux-gpio@vger.kernel.org
+ S: Maintained
+ F: Documentation/devicetree/bindings/pinctrl/brcm,bcm4908-pinctrl.yaml
++F: drivers/pinctrl/bcm/pinctrl-bcm4908.c
+
+ BROADCOM BCM5301X ARM ARCHITECTURE
+ M: Hauke Mehrtens <hauke@hauke-m.de>
+--- a/drivers/pinctrl/bcm/Kconfig
++++ b/drivers/pinctrl/bcm/Kconfig
+@@ -29,6 +29,20 @@ config PINCTRL_BCM2835
+ help
+ Say Y here to enable the Broadcom BCM2835 GPIO driver.
+
++config PINCTRL_BCM4908
++ tristate "Broadcom BCM4908 pinmux driver"
++ depends on OF && (ARCH_BCM4908 || COMPILE_TEST)
++ select PINMUX
++ select PINCONF
++ select GENERIC_PINCONF
++ select GENERIC_PINCTRL_GROUPS
++ select GENERIC_PINMUX_FUNCTIONS
++ default ARCH_BCM4908
++ help
++ Driver for BCM4908 family SoCs with integrated pin controller.
++
++ If compiled as module it will be called pinctrl-bcm4908.
++
+ config PINCTRL_IPROC_GPIO
+ bool "Broadcom iProc GPIO (with PINCONF) driver"
+ depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST)
+--- a/drivers/pinctrl/bcm/Makefile
++++ b/drivers/pinctrl/bcm/Makefile
+@@ -3,6 +3,7 @@
+
+ obj-$(CONFIG_PINCTRL_BCM281XX) += pinctrl-bcm281xx.o
+ obj-$(CONFIG_PINCTRL_BCM2835) += pinctrl-bcm2835.o
++obj-$(CONFIG_PINCTRL_BCM4908) += pinctrl-bcm4908.o
+ obj-$(CONFIG_PINCTRL_IPROC_GPIO) += pinctrl-iproc-gpio.o
+ obj-$(CONFIG_PINCTRL_CYGNUS_MUX) += pinctrl-cygnus-mux.o
+ obj-$(CONFIG_PINCTRL_NS) += pinctrl-ns.o
+--- /dev/null
++++ b/drivers/pinctrl/bcm/pinctrl-bcm4908.c
+@@ -0,0 +1,561 @@
++// SPDX-License-Identifier: GPL-2.0
++/* Copyright (C) 2021 Rafał Miłecki <rafal@milecki.pl> */
++
++#include <linux/err.h>
++#include <linux/io.h>
++#include <linux/mod_devicetable.h>
++#include <linux/module.h>
++#include <linux/pinctrl/pinconf-generic.h>
++#include <linux/pinctrl/pinctrl.h>
++#include <linux/pinctrl/pinmux.h>
++#include <linux/platform_device.h>
++#include <linux/slab.h>
++#include <linux/string_helpers.h>
++
++#include "../core.h"
++#include "../pinmux.h"
++
++#define BCM4908_NUM_PINS 86
++
++#define BCM4908_TEST_PORT_BLOCK_EN_LSB 0x00
++#define BCM4908_TEST_PORT_BLOCK_DATA_MSB 0x04
++#define BCM4908_TEST_PORT_BLOCK_DATA_LSB 0x08
++#define BCM4908_TEST_PORT_LSB_PINMUX_DATA_SHIFT 12
++#define BCM4908_TEST_PORT_COMMAND 0x0c
++#define BCM4908_TEST_PORT_CMD_LOAD_MUX_REG 0x00000021
++
++struct bcm4908_pinctrl {
++ struct device *dev;
++ void __iomem *base;
++ struct mutex mutex;
++ struct pinctrl_dev *pctldev;
++ struct pinctrl_desc pctldesc;
++};
++
++/*
++ * Groups
++ */
++
++struct bcm4908_pinctrl_pin_setup {
++ unsigned int number;
++ unsigned int function;
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_0_pins_a[] = {
++ { 0, 3 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_1_pins_a[] = {
++ { 1, 3 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_2_pins_a[] = {
++ { 2, 3 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_3_pins_a[] = {
++ { 3, 3 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_4_pins_a[] = {
++ { 4, 3 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_5_pins_a[] = {
++ { 5, 3 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_6_pins_a[] = {
++ { 6, 3 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_7_pins_a[] = {
++ { 7, 3 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_8_pins_a[] = {
++ { 8, 3 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_9_pins_a[] = {
++ { 9, 3 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_10_pins_a[] = {
++ { 10, 3 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_11_pins_a[] = {
++ { 11, 3 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_12_pins_a[] = {
++ { 12, 3 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_13_pins_a[] = {
++ { 13, 3 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_14_pins_a[] = {
++ { 14, 3 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_15_pins_a[] = {
++ { 15, 3 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_16_pins_a[] = {
++ { 16, 3 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_17_pins_a[] = {
++ { 17, 3 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_18_pins_a[] = {
++ { 18, 3 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_19_pins_a[] = {
++ { 19, 3 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_20_pins_a[] = {
++ { 20, 3 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_21_pins_a[] = {
++ { 21, 3 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_22_pins_a[] = {
++ { 22, 3 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_23_pins_a[] = {
++ { 23, 3 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_24_pins_a[] = {
++ { 24, 3 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_25_pins_a[] = {
++ { 25, 3 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_26_pins_a[] = {
++ { 26, 3 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_27_pins_a[] = {
++ { 27, 3 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_28_pins_a[] = {
++ { 28, 3 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_29_pins_a[] = {
++ { 29, 3 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_30_pins_a[] = {
++ { 30, 3 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_31_pins_a[] = {
++ { 31, 3 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_10_pins_b[] = {
++ { 8, 2 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_11_pins_b[] = {
++ { 9, 2 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_12_pins_b[] = {
++ { 0, 2 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_13_pins_b[] = {
++ { 1, 2 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup led_31_pins_b[] = {
++ { 30, 2 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup hs_uart_pins[] = {
++ { 10, 0 }, /* CTS */
++ { 11, 0 }, /* RTS */
++ { 12, 0 }, /* RXD */
++ { 13, 0 }, /* TXD */
++};
++
++static const struct bcm4908_pinctrl_pin_setup i2c_pins_a[] = {
++ { 18, 0 }, /* SDA */
++ { 19, 0 }, /* SCL */
++};
++
++static const struct bcm4908_pinctrl_pin_setup i2c_pins_b[] = {
++ { 22, 0 }, /* SDA */
++ { 23, 0 }, /* SCL */
++};
++
++static const struct bcm4908_pinctrl_pin_setup i2s_pins[] = {
++ { 27, 0 }, /* MCLK */
++ { 28, 0 }, /* LRCK */
++ { 29, 0 }, /* SDATA */
++ { 30, 0 }, /* SCLK */
++};
++
++static const struct bcm4908_pinctrl_pin_setup nand_ctrl_pins[] = {
++ { 32, 0 },
++ { 33, 0 },
++ { 34, 0 },
++ { 43, 0 },
++ { 44, 0 },
++ { 45, 0 },
++ { 56, 1 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup nand_data_pins[] = {
++ { 35, 0 },
++ { 36, 0 },
++ { 37, 0 },
++ { 38, 0 },
++ { 39, 0 },
++ { 40, 0 },
++ { 41, 0 },
++ { 42, 0 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup emmc_ctrl_pins[] = {
++ { 46, 0 },
++ { 47, 0 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup usb0_pwr_pins[] = {
++ { 63, 0 },
++ { 64, 0 },
++};
++
++static const struct bcm4908_pinctrl_pin_setup usb1_pwr_pins[] = {
++ { 66, 0 },
++ { 67, 0 },
++};
++
++struct bcm4908_pinctrl_grp {
++ const char *name;
++ const struct bcm4908_pinctrl_pin_setup *pins;
++ const unsigned int num_pins;
++};
++
++static const struct bcm4908_pinctrl_grp bcm4908_pinctrl_grps[] = {
++ { "led_0_grp_a", led_0_pins_a, ARRAY_SIZE(led_0_pins_a) },
++ { "led_1_grp_a", led_1_pins_a, ARRAY_SIZE(led_1_pins_a) },
++ { "led_2_grp_a", led_2_pins_a, ARRAY_SIZE(led_2_pins_a) },
++ { "led_3_grp_a", led_3_pins_a, ARRAY_SIZE(led_3_pins_a) },
++ { "led_4_grp_a", led_4_pins_a, ARRAY_SIZE(led_4_pins_a) },
++ { "led_5_grp_a", led_5_pins_a, ARRAY_SIZE(led_5_pins_a) },
++ { "led_6_grp_a", led_6_pins_a, ARRAY_SIZE(led_6_pins_a) },
++ { "led_7_grp_a", led_7_pins_a, ARRAY_SIZE(led_7_pins_a) },
++ { "led_8_grp_a", led_8_pins_a, ARRAY_SIZE(led_8_pins_a) },
++ { "led_9_grp_a", led_9_pins_a, ARRAY_SIZE(led_9_pins_a) },
++ { "led_10_grp_a", led_10_pins_a, ARRAY_SIZE(led_10_pins_a) },
++ { "led_11_grp_a", led_11_pins_a, ARRAY_SIZE(led_11_pins_a) },
++ { "led_12_grp_a", led_12_pins_a, ARRAY_SIZE(led_12_pins_a) },
++ { "led_13_grp_a", led_13_pins_a, ARRAY_SIZE(led_13_pins_a) },
++ { "led_14_grp_a", led_14_pins_a, ARRAY_SIZE(led_14_pins_a) },
++ { "led_15_grp_a", led_15_pins_a, ARRAY_SIZE(led_15_pins_a) },
++ { "led_16_grp_a", led_16_pins_a, ARRAY_SIZE(led_16_pins_a) },
++ { "led_17_grp_a", led_17_pins_a, ARRAY_SIZE(led_17_pins_a) },
++ { "led_18_grp_a", led_18_pins_a, ARRAY_SIZE(led_18_pins_a) },
++ { "led_19_grp_a", led_19_pins_a, ARRAY_SIZE(led_19_pins_a) },
++ { "led_20_grp_a", led_20_pins_a, ARRAY_SIZE(led_20_pins_a) },
++ { "led_21_grp_a", led_21_pins_a, ARRAY_SIZE(led_21_pins_a) },
++ { "led_22_grp_a", led_22_pins_a, ARRAY_SIZE(led_22_pins_a) },
++ { "led_23_grp_a", led_23_pins_a, ARRAY_SIZE(led_23_pins_a) },
++ { "led_24_grp_a", led_24_pins_a, ARRAY_SIZE(led_24_pins_a) },
++ { "led_25_grp_a", led_25_pins_a, ARRAY_SIZE(led_25_pins_a) },
++ { "led_26_grp_a", led_26_pins_a, ARRAY_SIZE(led_26_pins_a) },
++ { "led_27_grp_a", led_27_pins_a, ARRAY_SIZE(led_27_pins_a) },
++ { "led_28_grp_a", led_28_pins_a, ARRAY_SIZE(led_28_pins_a) },
++ { "led_29_grp_a", led_29_pins_a, ARRAY_SIZE(led_29_pins_a) },
++ { "led_30_grp_a", led_30_pins_a, ARRAY_SIZE(led_30_pins_a) },
++ { "led_31_grp_a", led_31_pins_a, ARRAY_SIZE(led_31_pins_a) },
++ { "led_10_grp_b", led_10_pins_b, ARRAY_SIZE(led_10_pins_b) },
++ { "led_11_grp_b", led_11_pins_b, ARRAY_SIZE(led_11_pins_b) },
++ { "led_12_grp_b", led_12_pins_b, ARRAY_SIZE(led_12_pins_b) },
++ { "led_13_grp_b", led_13_pins_b, ARRAY_SIZE(led_13_pins_b) },
++ { "led_31_grp_b", led_31_pins_b, ARRAY_SIZE(led_31_pins_b) },
++ { "hs_uart_grp", hs_uart_pins, ARRAY_SIZE(hs_uart_pins) },
++ { "i2c_grp_a", i2c_pins_a, ARRAY_SIZE(i2c_pins_a) },
++ { "i2c_grp_b", i2c_pins_b, ARRAY_SIZE(i2c_pins_b) },
++ { "i2s_grp", i2s_pins, ARRAY_SIZE(i2s_pins) },
++ { "nand_ctrl_grp", nand_ctrl_pins, ARRAY_SIZE(nand_ctrl_pins) },
++ { "nand_data_grp", nand_data_pins, ARRAY_SIZE(nand_data_pins) },
++ { "emmc_ctrl_grp", emmc_ctrl_pins, ARRAY_SIZE(emmc_ctrl_pins) },
++ { "usb0_pwr_grp", usb0_pwr_pins, ARRAY_SIZE(usb0_pwr_pins) },
++ { "usb1_pwr_grp", usb1_pwr_pins, ARRAY_SIZE(usb1_pwr_pins) },
++};
++
++/*
++ * Functions
++ */
++
++struct bcm4908_pinctrl_function {
++ const char *name;
++ const char * const *groups;
++ const unsigned int num_groups;
++};
++
++static const char * const led_0_groups[] = { "led_0_grp_a" };
++static const char * const led_1_groups[] = { "led_1_grp_a" };
++static const char * const led_2_groups[] = { "led_2_grp_a" };
++static const char * const led_3_groups[] = { "led_3_grp_a" };
++static const char * const led_4_groups[] = { "led_4_grp_a" };
++static const char * const led_5_groups[] = { "led_5_grp_a" };
++static const char * const led_6_groups[] = { "led_6_grp_a" };
++static const char * const led_7_groups[] = { "led_7_grp_a" };
++static const char * const led_8_groups[] = { "led_8_grp_a" };
++static const char * const led_9_groups[] = { "led_9_grp_a" };
++static const char * const led_10_groups[] = { "led_10_grp_a", "led_10_grp_b" };
++static const char * const led_11_groups[] = { "led_11_grp_a", "led_11_grp_b" };
++static const char * const led_12_groups[] = { "led_12_grp_a", "led_12_grp_b" };
++static const char * const led_13_groups[] = { "led_13_grp_a", "led_13_grp_b" };
++static const char * const led_14_groups[] = { "led_14_grp_a" };
++static const char * const led_15_groups[] = { "led_15_grp_a" };
++static const char * const led_16_groups[] = { "led_16_grp_a" };
++static const char * const led_17_groups[] = { "led_17_grp_a" };
++static const char * const led_18_groups[] = { "led_18_grp_a" };
++static const char * const led_19_groups[] = { "led_19_grp_a" };
++static const char * const led_20_groups[] = { "led_20_grp_a" };
++static const char * const led_21_groups[] = { "led_21_grp_a" };
++static const char * const led_22_groups[] = { "led_22_grp_a" };
++static const char * const led_23_groups[] = { "led_23_grp_a" };
++static const char * const led_24_groups[] = { "led_24_grp_a" };
++static const char * const led_25_groups[] = { "led_25_grp_a" };
++static const char * const led_26_groups[] = { "led_26_grp_a" };
++static const char * const led_27_groups[] = { "led_27_grp_a" };
++static const char * const led_28_groups[] = { "led_28_grp_a" };
++static const char * const led_29_groups[] = { "led_29_grp_a" };
++static const char * const led_30_groups[] = { "led_30_grp_a" };
++static const char * const led_31_groups[] = { "led_31_grp_a", "led_31_grp_b" };
++static const char * const hs_uart_groups[] = { "hs_uart_grp" };
++static const char * const i2c_groups[] = { "i2c_grp_a", "i2c_grp_b" };
++static const char * const i2s_groups[] = { "i2s_grp" };
++static const char * const nand_ctrl_groups[] = { "nand_ctrl_grp" };
++static const char * const nand_data_groups[] = { "nand_data_grp" };
++static const char * const emmc_ctrl_groups[] = { "emmc_ctrl_grp" };
++static const char * const usb0_pwr_groups[] = { "usb0_pwr_grp" };
++static const char * const usb1_pwr_groups[] = { "usb1_pwr_grp" };
++
++static const struct bcm4908_pinctrl_function bcm4908_pinctrl_functions[] = {
++ { "led_0", led_0_groups, ARRAY_SIZE(led_0_groups) },
++ { "led_1", led_1_groups, ARRAY_SIZE(led_1_groups) },
++ { "led_2", led_2_groups, ARRAY_SIZE(led_2_groups) },
++ { "led_3", led_3_groups, ARRAY_SIZE(led_3_groups) },
++ { "led_4", led_4_groups, ARRAY_SIZE(led_4_groups) },
++ { "led_5", led_5_groups, ARRAY_SIZE(led_5_groups) },
++ { "led_6", led_6_groups, ARRAY_SIZE(led_6_groups) },
++ { "led_7", led_7_groups, ARRAY_SIZE(led_7_groups) },
++ { "led_8", led_8_groups, ARRAY_SIZE(led_8_groups) },
++ { "led_9", led_9_groups, ARRAY_SIZE(led_9_groups) },
++ { "led_10", led_10_groups, ARRAY_SIZE(led_10_groups) },
++ { "led_11", led_11_groups, ARRAY_SIZE(led_11_groups) },
++ { "led_12", led_12_groups, ARRAY_SIZE(led_12_groups) },
++ { "led_13", led_13_groups, ARRAY_SIZE(led_13_groups) },
++ { "led_14", led_14_groups, ARRAY_SIZE(led_14_groups) },
++ { "led_15", led_15_groups, ARRAY_SIZE(led_15_groups) },
++ { "led_16", led_16_groups, ARRAY_SIZE(led_16_groups) },
++ { "led_17", led_17_groups, ARRAY_SIZE(led_17_groups) },
++ { "led_18", led_18_groups, ARRAY_SIZE(led_18_groups) },
++ { "led_19", led_19_groups, ARRAY_SIZE(led_19_groups) },
++ { "led_20", led_20_groups, ARRAY_SIZE(led_20_groups) },
++ { "led_21", led_21_groups, ARRAY_SIZE(led_21_groups) },
++ { "led_22", led_22_groups, ARRAY_SIZE(led_22_groups) },
++ { "led_23", led_23_groups, ARRAY_SIZE(led_23_groups) },
++ { "led_24", led_24_groups, ARRAY_SIZE(led_24_groups) },
++ { "led_25", led_25_groups, ARRAY_SIZE(led_25_groups) },
++ { "led_26", led_26_groups, ARRAY_SIZE(led_26_groups) },
++ { "led_27", led_27_groups, ARRAY_SIZE(led_27_groups) },
++ { "led_28", led_28_groups, ARRAY_SIZE(led_28_groups) },
++ { "led_29", led_29_groups, ARRAY_SIZE(led_29_groups) },
++ { "led_30", led_30_groups, ARRAY_SIZE(led_30_groups) },
++ { "led_31", led_31_groups, ARRAY_SIZE(led_31_groups) },
++ { "hs_uart", hs_uart_groups, ARRAY_SIZE(hs_uart_groups) },
++ { "i2c", i2c_groups, ARRAY_SIZE(i2c_groups) },
++ { "i2s", i2s_groups, ARRAY_SIZE(i2s_groups) },
++ { "nand_ctrl", nand_ctrl_groups, ARRAY_SIZE(nand_ctrl_groups) },
++ { "nand_data", nand_data_groups, ARRAY_SIZE(nand_data_groups) },
++ { "emmc_ctrl", emmc_ctrl_groups, ARRAY_SIZE(emmc_ctrl_groups) },
++ { "usb0_pwr", usb0_pwr_groups, ARRAY_SIZE(usb0_pwr_groups) },
++ { "usb1_pwr", usb1_pwr_groups, ARRAY_SIZE(usb1_pwr_groups) },
++};
++
++/*
++ * Groups code
++ */
++
++static const struct pinctrl_ops bcm4908_pinctrl_ops = {
++ .get_groups_count = pinctrl_generic_get_group_count,
++ .get_group_name = pinctrl_generic_get_group_name,
++ .get_group_pins = pinctrl_generic_get_group_pins,
++ .dt_node_to_map = pinconf_generic_dt_node_to_map_group,
++ .dt_free_map = pinconf_generic_dt_free_map,
++};
++
++/*
++ * Functions code
++ */
++
++static int bcm4908_pinctrl_set_mux(struct pinctrl_dev *pctrl_dev,
++ unsigned int func_selector,
++ unsigned int group_selector)
++{
++ struct bcm4908_pinctrl *bcm4908_pinctrl = pinctrl_dev_get_drvdata(pctrl_dev);
++ const struct bcm4908_pinctrl_grp *group;
++ struct group_desc *group_desc;
++ int i;
++
++ group_desc = pinctrl_generic_get_group(pctrl_dev, group_selector);
++ if (!group_desc)
++ return -EINVAL;
++ group = group_desc->data;
++
++ mutex_lock(&bcm4908_pinctrl->mutex);
++ for (i = 0; i < group->num_pins; i++) {
++ u32 lsb = 0;
++
++ lsb |= group->pins[i].number;
++ lsb |= group->pins[i].function << BCM4908_TEST_PORT_LSB_PINMUX_DATA_SHIFT;
++
++ writel(0x0, bcm4908_pinctrl->base + BCM4908_TEST_PORT_BLOCK_DATA_MSB);
++ writel(lsb, bcm4908_pinctrl->base + BCM4908_TEST_PORT_BLOCK_DATA_LSB);
++ writel(BCM4908_TEST_PORT_CMD_LOAD_MUX_REG,
++ bcm4908_pinctrl->base + BCM4908_TEST_PORT_COMMAND);
++ }
++ mutex_unlock(&bcm4908_pinctrl->mutex);
++
++ return 0;
++}
++
++static const struct pinmux_ops bcm4908_pinctrl_pmxops = {
++ .get_functions_count = pinmux_generic_get_function_count,
++ .get_function_name = pinmux_generic_get_function_name,
++ .get_function_groups = pinmux_generic_get_function_groups,
++ .set_mux = bcm4908_pinctrl_set_mux,
++};
++
++/*
++ * Controller code
++ */
++
++static struct pinctrl_desc bcm4908_pinctrl_desc = {
++ .name = "bcm4908-pinctrl",
++ .pctlops = &bcm4908_pinctrl_ops,
++ .pmxops = &bcm4908_pinctrl_pmxops,
++};
++
++static const struct of_device_id bcm4908_pinctrl_of_match_table[] = {
++ { .compatible = "brcm,bcm4908-pinctrl", },
++ { }
++};
++
++static int bcm4908_pinctrl_probe(struct platform_device *pdev)
++{
++ struct device *dev = &pdev->dev;
++ struct bcm4908_pinctrl *bcm4908_pinctrl;
++ struct pinctrl_desc *pctldesc;
++ struct pinctrl_pin_desc *pins;
++ int i;
++
++ bcm4908_pinctrl = devm_kzalloc(dev, sizeof(*bcm4908_pinctrl), GFP_KERNEL);
++ if (!bcm4908_pinctrl)
++ return -ENOMEM;
++ pctldesc = &bcm4908_pinctrl->pctldesc;
++ platform_set_drvdata(pdev, bcm4908_pinctrl);
++
++ /* Set basic properties */
++
++ bcm4908_pinctrl->dev = dev;
++
++ bcm4908_pinctrl->base = devm_platform_ioremap_resource(pdev, 0);
++ if (IS_ERR(bcm4908_pinctrl->base))
++ return PTR_ERR(bcm4908_pinctrl->base);
++
++ mutex_init(&bcm4908_pinctrl->mutex);
++
++ memcpy(pctldesc, &bcm4908_pinctrl_desc, sizeof(*pctldesc));
++
++ /* Set pinctrl properties */
++
++ pins = devm_kcalloc(dev, BCM4908_NUM_PINS, sizeof(*pins), GFP_KERNEL);
++ if (!pins)
++ return -ENOMEM;
++ for (i = 0; i < BCM4908_NUM_PINS; i++) {
++ pins[i].number = i;
++ pins[i].name = devm_kasprintf(dev, GFP_KERNEL, "pin-%d", i);
++ if (!pins[i].name)
++ return -ENOMEM;
++ }
++ pctldesc->pins = pins;
++ pctldesc->npins = BCM4908_NUM_PINS;
++
++ /* Register */
++
++ bcm4908_pinctrl->pctldev = devm_pinctrl_register(dev, pctldesc, bcm4908_pinctrl);
++ if (IS_ERR(bcm4908_pinctrl->pctldev)) {
++ dev_err(dev, "Failed to register pinctrl\n");
++ return PTR_ERR(bcm4908_pinctrl->pctldev);
++ }
++
++ /* Groups */
++
++ for (i = 0; i < ARRAY_SIZE(bcm4908_pinctrl_grps); i++) {
++ const struct bcm4908_pinctrl_grp *group = &bcm4908_pinctrl_grps[i];
++ int *pins;
++ int j;
++
++ pins = devm_kcalloc(dev, group->num_pins, sizeof(*pins), GFP_KERNEL);
++ if (!pins)
++ return -ENOMEM;
++ for (j = 0; j < group->num_pins; j++)
++ pins[j] = group->pins[j].number;
++
++ pinctrl_generic_add_group(bcm4908_pinctrl->pctldev, group->name,
++ pins, group->num_pins, (void *)group);
++ }
++
++ /* Functions */
++
++ for (i = 0; i < ARRAY_SIZE(bcm4908_pinctrl_functions); i++) {
++ const struct bcm4908_pinctrl_function *function = &bcm4908_pinctrl_functions[i];
++
++ pinmux_generic_add_function(bcm4908_pinctrl->pctldev,
++ function->name,
++ function->groups,
++ function->num_groups, NULL);
++ }
++
++ return 0;
++}
++
++static struct platform_driver bcm4908_pinctrl_driver = {
++ .probe = bcm4908_pinctrl_probe,
++ .driver = {
++ .name = "bcm4908-pinctrl",
++ .of_match_table = bcm4908_pinctrl_of_match_table,
++ },
++};
++
++module_platform_driver(bcm4908_pinctrl_driver);
++
++MODULE_AUTHOR("Rafał Miłecki");
++MODULE_LICENSE("GPL v2");
++MODULE_DEVICE_TABLE(of, bcm4908_pinctrl_of_match_table);
projects / openwrt / openwrt.git / commitdiff