1 /* 2 * platform_tca6416.c: tca6416 platform data initilization file 3 * 4 * (C) Copyright 2013 Intel Corporation 5 * Author: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@intel.com> 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License 9 * as published by the Free Software Foundation; version 2 10 * of the License. 11 */ 12 13 #include <linux/platform_data/pca953x.h> 14 #include <linux/i2c.h> 15 #include <linux/gpio.h> 16 #include <asm/intel-mid.h> 17 18 #define TCA6416_NAME "tca6416" 19 #define TCA6416_BASE "tca6416_base" 20 #define TCA6416_INTR "tca6416_int" 21 tca6416_platform_data(void * info)22static void *tca6416_platform_data(void *info) 23 { 24 static struct pca953x_platform_data tca6416; 25 struct i2c_board_info *i2c_info = info; 26 int gpio_base, intr; 27 char base_pin_name[SFI_NAME_LEN + 1]; 28 char intr_pin_name[SFI_NAME_LEN + 1]; 29 30 strcpy(i2c_info->type, TCA6416_NAME); 31 strcpy(base_pin_name, TCA6416_BASE); 32 strcpy(intr_pin_name, TCA6416_INTR); 33 34 gpio_base = get_gpio_by_name(base_pin_name); 35 intr = get_gpio_by_name(intr_pin_name); 36 37 if (gpio_base < 0) 38 return NULL; 39 tca6416.gpio_base = gpio_base; 40 if (intr >= 0) { 41 i2c_info->irq = intr + INTEL_MID_IRQ_OFFSET; 42 tca6416.irq_base = gpio_base + INTEL_MID_IRQ_OFFSET; 43 } else { 44 i2c_info->irq = -1; 45 tca6416.irq_base = -1; 46 } 47 return &tca6416; 48 } 49 50 static const struct devs_id tca6416_dev_id __initconst = { 51 .name = "tca6416", 52 .type = SFI_DEV_TYPE_I2C, 53 .delay = 1, 54 .get_platform_data = &tca6416_platform_data, 55 }; 56 57 sfi_device(tca6416_dev_id); 58