610 lines
		
	
	
		
			16 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
			
		
		
	
	
			610 lines
		
	
	
		
			16 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
| From bd9c250ef85e6f99aa5d59b21abb87d0a48f2f61 Mon Sep 17 00:00:00 2001
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| From: Jonas Gorski <jonas.gorski@gmail.com>
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| Date: Fri, 24 Jun 2016 22:20:39 +0200
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| Subject: [PATCH 15/16] pinctrl: add a pincontrol driver for BCM6318
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| 
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| Add a pincontrol driver for BCM6318. BCM6318 allows muxing most GPIOs
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| to different functions. BCM6318 is similar to BCM6328 with the addition
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| of a pad register, and the GPIO meaning of the mux register changes
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| based on the GPIO number.
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| 
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| Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
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| ---
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|  drivers/pinctrl/bcm63xx/Kconfig           |   7 +
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|  drivers/pinctrl/bcm63xx/Makefile          |   1 +
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|  drivers/pinctrl/bcm63xx/pinctrl-bcm6318.c | 564 ++++++++++++++++++++++++++++++
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|  3 files changed, 572 insertions(+)
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|  create mode 100644 drivers/pinctrl/bcm63xx/pinctrl-bcm6318.c
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| 
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| --- a/drivers/pinctrl/bcm63xx/Kconfig
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| +++ b/drivers/pinctrl/bcm63xx/Kconfig
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| @@ -2,6 +2,13 @@ config PINCTRL_BCM63XX
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|  	bool
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|  	select GPIO_GENERIC
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|  
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| +config PINCTRL_BCM6318
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| +	bool "BCM6318 pincontrol driver" if COMPILE_TEST
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| +	select PINMUX
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| +	select PINCONF
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| +	select PINCTRL_BCM63XX
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| +	select GENERIC_PINCONF
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| +
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|  config PINCTRL_BCM6328
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|  	bool "BCM6328 pincontrol driver" if COMPILE_TEST
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|  	select PINMUX
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| --- a/drivers/pinctrl/bcm63xx/Makefile
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| +++ b/drivers/pinctrl/bcm63xx/Makefile
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| @@ -1,4 +1,5 @@
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|  obj-$(CONFIG_PINCTRL_BCM63XX)	+= pinctrl-bcm63xx.o
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| +obj-$(CONFIG_PINCTRL_BCM6318)	+= pinctrl-bcm6318.o
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|  obj-$(CONFIG_PINCTRL_BCM6328)	+= pinctrl-bcm6328.o
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|  obj-$(CONFIG_PINCTRL_BCM6348)	+= pinctrl-bcm6348.o
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|  obj-$(CONFIG_PINCTRL_BCM6358)	+= pinctrl-bcm6358.o
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| --- /dev/null
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| +++ b/drivers/pinctrl/bcm63xx/pinctrl-bcm6318.c
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| @@ -0,0 +1,564 @@
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| +/*
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| + * This file is subject to the terms and conditions of the GNU General Public
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| + * License.  See the file "COPYING" in the main directory of this archive
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| + * for more details.
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| + *
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| + * Copyright (C) 2016 Jonas Gorski <jonas.gorski@gmail.com>
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| + */
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| +
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| +#include <linux/kernel.h>
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| +#include <linux/spinlock.h>
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| +#include <linux/bitops.h>
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| +#include <linux/gpio.h>
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| +#include <linux/gpio/driver.h>
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| +#include <linux/of.h>
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| +#include <linux/of_gpio.h>
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| +#include <linux/slab.h>
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| +#include <linux/platform_device.h>
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| +
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| +#include <linux/pinctrl/pinconf.h>
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| +#include <linux/pinctrl/pinconf-generic.h>
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| +#include <linux/pinctrl/pinmux.h>
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| +#include <linux/pinctrl/machine.h>
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| +
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| +#include "../core.h"
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| +#include "../pinctrl-utils.h"
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| +
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| +#include "pinctrl-bcm63xx.h"
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| +
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| +#define BCM6318_NGPIO		50
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| +
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| +struct bcm6318_pingroup {
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| +	const char *name;
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| +	const unsigned * const pins;
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| +	const unsigned num_pins;
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| +};
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| +
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| +struct bcm6318_function {
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| +	const char *name;
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| +	const char * const *groups;
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| +	const unsigned num_groups;
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| +
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| +	unsigned mode_val:1;
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| +	unsigned mux_val:2;
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| +};
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| +
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| +struct bcm6318_pinctrl {
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| +	struct pinctrl_dev *pctldev;
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| +	struct pinctrl_desc desc;
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| +
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| +	void __iomem *mode;
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| +	void __iomem *mux[3];
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| +	void __iomem *pad[6];
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| +
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| +	/* register access lock */
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| +	spinlock_t lock;
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| +
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| +	struct gpio_chip gpio[2];
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| +};
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| +
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| +static const struct pinctrl_pin_desc bcm6318_pins[] = {
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| +	PINCTRL_PIN(0, "gpio0"),
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| +	PINCTRL_PIN(1, "gpio1"),
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| +	PINCTRL_PIN(2, "gpio2"),
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| +	PINCTRL_PIN(3, "gpio3"),
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| +	PINCTRL_PIN(4, "gpio4"),
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| +	PINCTRL_PIN(5, "gpio5"),
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| +	PINCTRL_PIN(6, "gpio6"),
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| +	PINCTRL_PIN(7, "gpio7"),
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| +	PINCTRL_PIN(8, "gpio8"),
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| +	PINCTRL_PIN(9, "gpio9"),
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| +	PINCTRL_PIN(10, "gpio10"),
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| +	PINCTRL_PIN(11, "gpio11"),
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| +	PINCTRL_PIN(12, "gpio12"),
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| +	PINCTRL_PIN(13, "gpio13"),
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| +	PINCTRL_PIN(14, "gpio14"),
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| +	PINCTRL_PIN(15, "gpio15"),
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| +	PINCTRL_PIN(16, "gpio16"),
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| +	PINCTRL_PIN(17, "gpio17"),
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| +	PINCTRL_PIN(18, "gpio18"),
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| +	PINCTRL_PIN(19, "gpio19"),
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| +	PINCTRL_PIN(20, "gpio20"),
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| +	PINCTRL_PIN(21, "gpio21"),
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| +	PINCTRL_PIN(22, "gpio22"),
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| +	PINCTRL_PIN(23, "gpio23"),
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| +	PINCTRL_PIN(24, "gpio24"),
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| +	PINCTRL_PIN(25, "gpio25"),
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| +	PINCTRL_PIN(26, "gpio26"),
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| +	PINCTRL_PIN(27, "gpio27"),
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| +	PINCTRL_PIN(28, "gpio28"),
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| +	PINCTRL_PIN(29, "gpio29"),
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| +	PINCTRL_PIN(30, "gpio30"),
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| +	PINCTRL_PIN(31, "gpio31"),
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| +	PINCTRL_PIN(32, "gpio32"),
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| +	PINCTRL_PIN(33, "gpio33"),
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| +	PINCTRL_PIN(34, "gpio34"),
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| +	PINCTRL_PIN(35, "gpio35"),
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| +	PINCTRL_PIN(36, "gpio36"),
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| +	PINCTRL_PIN(37, "gpio37"),
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| +	PINCTRL_PIN(38, "gpio38"),
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| +	PINCTRL_PIN(39, "gpio39"),
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| +	PINCTRL_PIN(40, "gpio40"),
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| +	PINCTRL_PIN(41, "gpio41"),
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| +	PINCTRL_PIN(42, "gpio42"),
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| +	PINCTRL_PIN(43, "gpio43"),
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| +	PINCTRL_PIN(44, "gpio44"),
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| +	PINCTRL_PIN(45, "gpio45"),
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| +	PINCTRL_PIN(46, "gpio46"),
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| +	PINCTRL_PIN(47, "gpio47"),
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| +	PINCTRL_PIN(48, "gpio48"),
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| +	PINCTRL_PIN(49, "gpio49"),
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| +};
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| +
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| +static unsigned gpio0_pins[] = { 0 };
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| +static unsigned gpio1_pins[] = { 1 };
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| +static unsigned gpio2_pins[] = { 2 };
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| +static unsigned gpio3_pins[] = { 3 };
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| +static unsigned gpio4_pins[] = { 4 };
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| +static unsigned gpio5_pins[] = { 5 };
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| +static unsigned gpio6_pins[] = { 6 };
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| +static unsigned gpio7_pins[] = { 7 };
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| +static unsigned gpio8_pins[] = { 8 };
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| +static unsigned gpio9_pins[] = { 9 };
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| +static unsigned gpio10_pins[] = { 10 };
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| +static unsigned gpio11_pins[] = { 11 };
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| +static unsigned gpio12_pins[] = { 12 };
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| +static unsigned gpio13_pins[] = { 13 };
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| +static unsigned gpio14_pins[] = { 14 };
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| +static unsigned gpio15_pins[] = { 15 };
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| +static unsigned gpio16_pins[] = { 16 };
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| +static unsigned gpio17_pins[] = { 17 };
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| +static unsigned gpio18_pins[] = { 18 };
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| +static unsigned gpio19_pins[] = { 19 };
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| +static unsigned gpio20_pins[] = { 20 };
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| +static unsigned gpio21_pins[] = { 21 };
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| +static unsigned gpio22_pins[] = { 22 };
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| +static unsigned gpio23_pins[] = { 23 };
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| +static unsigned gpio24_pins[] = { 24 };
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| +static unsigned gpio25_pins[] = { 25 };
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| +static unsigned gpio26_pins[] = { 26 };
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| +static unsigned gpio27_pins[] = { 27 };
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| +static unsigned gpio28_pins[] = { 28 };
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| +static unsigned gpio29_pins[] = { 29 };
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| +static unsigned gpio30_pins[] = { 30 };
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| +static unsigned gpio31_pins[] = { 31 };
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| +static unsigned gpio32_pins[] = { 32 };
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| +static unsigned gpio33_pins[] = { 33 };
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| +static unsigned gpio34_pins[] = { 34 };
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| +static unsigned gpio35_pins[] = { 35 };
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| +static unsigned gpio36_pins[] = { 36 };
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| +static unsigned gpio37_pins[] = { 37 };
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| +static unsigned gpio38_pins[] = { 38 };
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| +static unsigned gpio39_pins[] = { 39 };
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| +static unsigned gpio40_pins[] = { 40 };
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| +static unsigned gpio41_pins[] = { 41 };
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| +static unsigned gpio42_pins[] = { 42 };
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| +static unsigned gpio43_pins[] = { 43 };
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| +static unsigned gpio44_pins[] = { 44 };
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| +static unsigned gpio45_pins[] = { 45 };
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| +static unsigned gpio46_pins[] = { 46 };
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| +static unsigned gpio47_pins[] = { 47 };
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| +static unsigned gpio48_pins[] = { 48 };
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| +static unsigned gpio49_pins[] = { 49 };
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| +
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| +#define BCM6318_GROUP(n)					\
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| +	{							\
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| +		.name = #n,					\
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| +		.pins = n##_pins,				\
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| +		.num_pins = ARRAY_SIZE(n##_pins),		\
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| +	}
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| +
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| +static struct bcm6318_pingroup bcm6318_groups[] = {
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| +	BCM6318_GROUP(gpio0),
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| +	BCM6318_GROUP(gpio1),
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| +	BCM6318_GROUP(gpio2),
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| +	BCM6318_GROUP(gpio3),
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| +	BCM6318_GROUP(gpio4),
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| +	BCM6318_GROUP(gpio5),
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| +	BCM6318_GROUP(gpio6),
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| +	BCM6318_GROUP(gpio7),
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| +	BCM6318_GROUP(gpio8),
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| +	BCM6318_GROUP(gpio9),
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| +	BCM6318_GROUP(gpio10),
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| +	BCM6318_GROUP(gpio11),
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| +	BCM6318_GROUP(gpio12),
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| +	BCM6318_GROUP(gpio13),
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| +	BCM6318_GROUP(gpio14),
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| +	BCM6318_GROUP(gpio15),
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| +	BCM6318_GROUP(gpio16),
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| +	BCM6318_GROUP(gpio17),
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| +	BCM6318_GROUP(gpio18),
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| +	BCM6318_GROUP(gpio19),
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| +	BCM6318_GROUP(gpio20),
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| +	BCM6318_GROUP(gpio21),
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| +	BCM6318_GROUP(gpio22),
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| +	BCM6318_GROUP(gpio23),
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| +	BCM6318_GROUP(gpio24),
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| +	BCM6318_GROUP(gpio25),
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| +	BCM6318_GROUP(gpio26),
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| +	BCM6318_GROUP(gpio27),
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| +	BCM6318_GROUP(gpio28),
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| +	BCM6318_GROUP(gpio29),
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| +	BCM6318_GROUP(gpio30),
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| +	BCM6318_GROUP(gpio31),
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| +	BCM6318_GROUP(gpio32),
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| +	BCM6318_GROUP(gpio33),
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| +	BCM6318_GROUP(gpio34),
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| +	BCM6318_GROUP(gpio35),
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| +	BCM6318_GROUP(gpio36),
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| +	BCM6318_GROUP(gpio37),
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| +	BCM6318_GROUP(gpio38),
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| +	BCM6318_GROUP(gpio39),
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| +	BCM6318_GROUP(gpio40),
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| +	BCM6318_GROUP(gpio41),
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| +	BCM6318_GROUP(gpio42),
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| +	BCM6318_GROUP(gpio43),
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| +	BCM6318_GROUP(gpio44),
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| +	BCM6318_GROUP(gpio45),
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| +	BCM6318_GROUP(gpio46),
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| +	BCM6318_GROUP(gpio47),
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| +	BCM6318_GROUP(gpio48),
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| +	BCM6318_GROUP(gpio49),
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| +};
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| +
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| +/* GPIO_MODE */
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| +static const char * const led_groups[] = {
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| +	"gpio0",
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| +	"gpio1",
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| +	"gpio2",
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| +	"gpio3",
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| +	"gpio4",
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| +	"gpio5",
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| +	"gpio6",
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| +	"gpio7",
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| +	"gpio8",
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| +	"gpio9",
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| +	"gpio10",
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| +	"gpio11",
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| +	"gpio12",
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| +	"gpio13",
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| +	"gpio14",
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| +	"gpio15",
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| +	"gpio16",
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| +	"gpio17",
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| +	"gpio18",
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| +	"gpio19",
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| +	"gpio20",
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| +	"gpio21",
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| +	"gpio22",
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| +	"gpio23",
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| +};
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| +
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| +/* PINMUX_SEL */
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| +static const char * const ephy0_spd_led_groups[] = {
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| +	"gpio0",
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| +};
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| +
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| +static const char * const ephy1_spd_led_groups[] = {
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| +	"gpio1",
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| +};
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| +
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| +static const char * const ephy2_spd_led_groups[] = {
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| +	"gpio2",
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| +};
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| +
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| +static const char * const ephy3_spd_led_groups[] = {
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| +	"gpio3",
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| +};
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| +
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| +static const char * const ephy0_act_led_groups[] = {
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| +	"gpio4",
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| +};
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| +
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| +static const char * const ephy1_act_led_groups[] = {
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| +	"gpio5",
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| +};
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| +
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| +static const char * const ephy2_act_led_groups[] = {
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| +	"gpio6",
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| +};
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| +
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| +static const char * const ephy3_act_led_groups[] = {
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| +	"gpio7",
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| +};
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| +
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| +static const char * const serial_led_data_groups[] = {
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| +	"gpio6",
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| +};
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| +
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| +static const char * const serial_led_clk_groups[] = {
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| +	"gpio7",
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| +};
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| +
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| +static const char * const inet_act_led_groups[] = {
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| +	"gpio8",
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| +};
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| +
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| +static const char * const inet_fail_led_groups[] = {
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| +	"gpio9",
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| +};
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| +
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| +static const char * const dsl_led_groups[] = {
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| +	"gpio10",
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| +};
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| +
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| +static const char * const post_fail_led_groups[] = {
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| +	"gpio11",
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| +};
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| +
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| +static const char * const wlan_wps_led_groups[] = {
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| +	"gpio12",
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| +};
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| +
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| +static const char * const usb_pwron_groups[] = {
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| +	"gpio13",
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| +};
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| +
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| +static const char * const usb_device_led_groups[] = {
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| +	"gpio13",
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| +};
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| +
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| +static const char * const usb_active_groups[] = {
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| +	"gpio40",
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| +};
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| +
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| +#define BCM6318_MODE_FUN(n)				\
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| +	{						\
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| +		.name = #n,				\
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| +		.groups = n##_groups,			\
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| +		.num_groups = ARRAY_SIZE(n##_groups),	\
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| +		.mode_val = 1,				\
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| +	}
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| +
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| +#define BCM6318_MUX_FUN(n, mux)				\
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| +	{						\
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| +		.name = #n,				\
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| +		.groups = n##_groups,			\
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| +		.num_groups = ARRAY_SIZE(n##_groups),	\
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| +		.mux_val = mux,				\
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| +	}
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| +
 | |
| +static const struct bcm6318_function bcm6318_funcs[] = {
 | |
| +	BCM6318_MODE_FUN(led),
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| +	BCM6318_MUX_FUN(ephy0_spd_led, 1),
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| +	BCM6318_MUX_FUN(ephy1_spd_led, 1),
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| +	BCM6318_MUX_FUN(ephy2_spd_led, 1),
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| +	BCM6318_MUX_FUN(ephy3_spd_led, 1),
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| +	BCM6318_MUX_FUN(ephy0_act_led, 1),
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| +	BCM6318_MUX_FUN(ephy1_act_led, 1),
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| +	BCM6318_MUX_FUN(ephy2_act_led, 1),
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| +	BCM6318_MUX_FUN(ephy3_act_led, 1),
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| +	BCM6318_MUX_FUN(serial_led_data, 3),
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| +	BCM6318_MUX_FUN(serial_led_clk, 3),
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| +	BCM6318_MUX_FUN(inet_act_led, 1),
 | |
| +	BCM6318_MUX_FUN(inet_fail_led, 1),
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| +	BCM6318_MUX_FUN(dsl_led, 1),
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| +	BCM6318_MUX_FUN(post_fail_led, 1),
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| +	BCM6318_MUX_FUN(wlan_wps_led, 1),
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| +	BCM6318_MUX_FUN(usb_pwron, 1),
 | |
| +	BCM6318_MUX_FUN(usb_device_led, 2),
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| +	BCM6318_MUX_FUN(usb_active, 2),
 | |
| +};
 | |
| +
 | |
| +static int bcm6318_pinctrl_get_group_count(struct pinctrl_dev *pctldev)
 | |
| +{
 | |
| +	return ARRAY_SIZE(bcm6318_groups);
 | |
| +}
 | |
| +
 | |
| +static const char *bcm6318_pinctrl_get_group_name(struct pinctrl_dev *pctldev,
 | |
| +						  unsigned group)
 | |
| +{
 | |
| +	return bcm6318_groups[group].name;
 | |
| +}
 | |
| +
 | |
| +static int bcm6318_pinctrl_get_group_pins(struct pinctrl_dev *pctldev,
 | |
| +					  unsigned group, const unsigned **pins,
 | |
| +					  unsigned *num_pins)
 | |
| +{
 | |
| +	*pins = bcm6318_groups[group].pins;
 | |
| +	*num_pins = bcm6318_groups[group].num_pins;
 | |
| +
 | |
| +	return 0;
 | |
| +}
 | |
| +
 | |
| +static int bcm6318_pinctrl_get_func_count(struct pinctrl_dev *pctldev)
 | |
| +{
 | |
| +	return ARRAY_SIZE(bcm6318_funcs);
 | |
| +}
 | |
| +
 | |
| +static const char *bcm6318_pinctrl_get_func_name(struct pinctrl_dev *pctldev,
 | |
| +						 unsigned selector)
 | |
| +{
 | |
| +	return bcm6318_funcs[selector].name;
 | |
| +}
 | |
| +
 | |
| +static int bcm6318_pinctrl_get_groups(struct pinctrl_dev *pctldev,
 | |
| +				      unsigned selector,
 | |
| +				      const char * const **groups,
 | |
| +				      unsigned * const num_groups)
 | |
| +{
 | |
| +	*groups = bcm6318_funcs[selector].groups;
 | |
| +	*num_groups = bcm6318_funcs[selector].num_groups;
 | |
| +
 | |
| +	return 0;
 | |
| +}
 | |
| +
 | |
| +static void bcm6318_rmw_mux(struct bcm6318_pinctrl *pctl, unsigned pin,
 | |
| +			    u32 mode, u32 mux)
 | |
| +{
 | |
| +	unsigned long flags;
 | |
| +	u32 reg;
 | |
| +
 | |
| +	spin_lock_irqsave(&pctl->lock, flags);
 | |
| +	if (pin < 32) {
 | |
| +		reg = __raw_readl(pctl->mode);
 | |
| +		reg &= ~BIT(pin);
 | |
| +		if (mode)
 | |
| +			reg |= BIT(pin);
 | |
| +		__raw_writel(reg, pctl->mode);
 | |
| +	}
 | |
| +
 | |
| +	if (pin < 48) {
 | |
| +		reg = __raw_readl(pctl->mux[pin / 16]);
 | |
| +		reg &= ~(3UL << ((pin % 16) * 2));
 | |
| +		reg |= mux << ((pin % 16) * 2);
 | |
| +		__raw_writel(reg, pctl->mux[pin / 16]);
 | |
| +	}
 | |
| +	spin_unlock_irqrestore(&pctl->lock, flags);
 | |
| +}
 | |
| +
 | |
| +static void bcm6318_set_pad(struct bcm6318_pinctrl *pctl, unsigned pin, u8 val)
 | |
| +{
 | |
| +	unsigned long flags;
 | |
| +	u32 reg;
 | |
| +
 | |
| +	spin_lock_irqsave(&pctl->lock, flags);
 | |
| +	reg = __raw_readl(pctl->pad[pin / 8]);
 | |
| +	reg &= ~(0xfUL << ((pin % 8) * 4));
 | |
| +	reg |= val << ((pin % 8) * 4);
 | |
| +	__raw_writel(reg, pctl->pad[pin / 8]);
 | |
| +	spin_unlock_irqrestore(&pctl->lock, flags);
 | |
| +}
 | |
| +
 | |
| +static int bcm6318_pinctrl_set_mux(struct pinctrl_dev *pctldev,
 | |
| +				   unsigned selector, unsigned group)
 | |
| +{
 | |
| +	struct bcm6318_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
 | |
| +	const struct bcm6318_pingroup *grp = &bcm6318_groups[group];
 | |
| +	const struct bcm6318_function *f = &bcm6318_funcs[selector];
 | |
| +
 | |
| +	bcm6318_rmw_mux(pctl, grp->pins[0], f->mode_val, f->mux_val);
 | |
| +
 | |
| +	return 0;
 | |
| +}
 | |
| +
 | |
| +static int bcm6318_gpio_request_enable(struct pinctrl_dev *pctldev,
 | |
| +				       struct pinctrl_gpio_range *range,
 | |
| +				       unsigned offset)
 | |
| +{
 | |
| +	struct bcm6318_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
 | |
| +
 | |
| +	/* disable all functions using this pin */
 | |
| +	if (offset < 13) {
 | |
| +		/* GPIOs 0-12 use mux 0 as GPIO function */
 | |
| +		bcm6318_rmw_mux(pctl, offset, 0, 0);
 | |
| +	} else if (offset < 42) {
 | |
| +		/* GPIOs 13-41 use mux 3 as GPIO function */
 | |
| +		bcm6318_rmw_mux(pctl, offset, 0, 3);
 | |
| +
 | |
| +		/* FIXME: revert to old value for non gpio? */
 | |
| +		bcm6318_set_pad(pctl, offset, 0);
 | |
| +	} else {
 | |
| +		/* no idea, really */
 | |
| +	}
 | |
| +
 | |
| +	return 0;
 | |
| +}
 | |
| +
 | |
| +static struct pinctrl_ops bcm6318_pctl_ops = {
 | |
| +	.get_groups_count	= bcm6318_pinctrl_get_group_count,
 | |
| +	.get_group_name		= bcm6318_pinctrl_get_group_name,
 | |
| +	.get_group_pins		= bcm6318_pinctrl_get_group_pins,
 | |
| +#ifdef CONFIG_OF
 | |
| +	.dt_node_to_map		= pinconf_generic_dt_node_to_map_pin,
 | |
| +	.dt_free_map		= pinctrl_utils_free_map,
 | |
| +#endif
 | |
| +};
 | |
| +
 | |
| +static struct pinmux_ops bcm6318_pmx_ops = {
 | |
| +	.get_functions_count	= bcm6318_pinctrl_get_func_count,
 | |
| +	.get_function_name	= bcm6318_pinctrl_get_func_name,
 | |
| +	.get_function_groups	= bcm6318_pinctrl_get_groups,
 | |
| +	.set_mux		= bcm6318_pinctrl_set_mux,
 | |
| +	.gpio_request_enable	= bcm6318_gpio_request_enable,
 | |
| +	.strict 		= true,
 | |
| +};
 | |
| +
 | |
| +static int bcm6318_pinctrl_probe(struct platform_device *pdev)
 | |
| +{
 | |
| +	struct bcm6318_pinctrl *pctl;
 | |
| +	struct resource *res;
 | |
| +	void __iomem *mode, *mux, *pad;
 | |
| +	unsigned i;
 | |
| +
 | |
| +	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mode");
 | |
| +	mode = devm_ioremap_resource(&pdev->dev, res);
 | |
| +	if (IS_ERR(mode))
 | |
| +		return PTR_ERR(mode);
 | |
| +
 | |
| +	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mux");
 | |
| +	mux = devm_ioremap_resource(&pdev->dev, res);
 | |
| +	if (IS_ERR(mux))
 | |
| +		return PTR_ERR(mux);
 | |
| +
 | |
| +	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pad");
 | |
| +	pad = devm_ioremap_resource(&pdev->dev, res);
 | |
| +	if (IS_ERR(pad))
 | |
| +		return PTR_ERR(pad);
 | |
| +
 | |
| +	pctl = devm_kzalloc(&pdev->dev, sizeof(*pctl), GFP_KERNEL);
 | |
| +	if (!pctl)
 | |
| +		return -ENOMEM;
 | |
| +
 | |
| +	spin_lock_init(&pctl->lock);
 | |
| +
 | |
| +	pctl->mode = mode;
 | |
| +
 | |
| +	for (i = 0; i < 3; i++)
 | |
| +		pctl->mux[i] = mux + (i * 4);
 | |
| +
 | |
| +	for (i = 0; i < 6; i++)
 | |
| +		pctl->pad[i] = pad + (i * 4);
 | |
| +
 | |
| +	pctl->desc.name = dev_name(&pdev->dev);
 | |
| +	pctl->desc.owner = THIS_MODULE;
 | |
| +	pctl->desc.pctlops = &bcm6318_pctl_ops;
 | |
| +	pctl->desc.pmxops = &bcm6318_pmx_ops;
 | |
| +
 | |
| +	pctl->desc.npins = ARRAY_SIZE(bcm6318_pins);
 | |
| +	pctl->desc.pins = bcm6318_pins;
 | |
| +
 | |
| +	platform_set_drvdata(pdev, pctl);
 | |
| +
 | |
| +	pctl->pctldev = bcm63xx_pinctrl_register(pdev, &pctl->desc, pctl,
 | |
| +						 pctl->gpio, BCM6318_NGPIO);
 | |
| +	if (IS_ERR(pctl->pctldev))
 | |
| +		return PTR_ERR(pctl->pctldev);
 | |
| +
 | |
| +	return 0;
 | |
| +}
 | |
| +
 | |
| +static const struct of_device_id bcm6318_pinctrl_match[] = {
 | |
| +	{ .compatible = "brcm,bcm6318-pinctrl", },
 | |
| +	{ },
 | |
| +};
 | |
| +
 | |
| +static struct platform_driver bcm6318_pinctrl_driver = {
 | |
| +	.probe = bcm6318_pinctrl_probe,
 | |
| +	.driver = {
 | |
| +		.name = "bcm6318-pinctrl",
 | |
| +		.of_match_table = bcm6318_pinctrl_match,
 | |
| +	},
 | |
| +};
 | |
| +
 | |
| +builtin_platform_driver(bcm6318_pinctrl_driver);
 | 
