arch/x86/platform/intel-mid/device_libs/platform_tc35876x.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * platform_tc35876x.c: tc35876x platform data initialization file
   4  *
   5  * (C) Copyright 2013 Intel Corporation
   6  * Author: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@intel.com>
   7  */
   8
   9 #include <linux/gpio/machine.h>
  10 #include <asm/intel-mid.h>
  11
  12 static struct gpiod_lookup_table tc35876x_gpio_table = {
  13         .dev_id = "i2c_disp_brig",
  14         .table  = {
  15                 GPIO_LOOKUP("0000:00:0c.0", -1, "bridge-reset", GPIO_ACTIVE_HIGH),
  16                 GPIO_LOOKUP("0000:00:0c.0", -1, "bl-en", GPIO_ACTIVE_HIGH),
  17                 GPIO_LOOKUP("0000:00:0c.0", -1, "vadd", GPIO_ACTIVE_HIGH),
  18                 { },
  19         },
  20 };
  21
  22 /*tc35876x DSI_LVDS bridge chip and panel platform data*/
  23 static void *tc35876x_platform_data(void *data)
  24 {
  25         struct gpiod_lookup_table *table = &tc35876x_gpio_table;
  26         struct gpiod_lookup *lookup = table->table;
  27
  28         lookup[0].chip_hwnum = get_gpio_by_name("LCMB_RXEN");
  29         lookup[1].chip_hwnum = get_gpio_by_name("6S6P_BL_EN");
  30         lookup[2].chip_hwnum = get_gpio_by_name("EN_VREG_LCD_V3P3");
  31         gpiod_add_lookup_table(table);
  32
  33         return NULL;
  34 }
  35
  36 static const struct devs_id tc35876x_dev_id __initconst = {
  37         .name = "i2c_disp_brig",
  38         .type = SFI_DEV_TYPE_I2C,
  39         .get_platform_data = &tc35876x_platform_data,
  40 };
  41
  42 sfi_device(tc35876x_dev_id);