drivers/media/i2c/power_ctrl_logic.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /* Copyright (c) 2020-2021 Intel Corporation. */
   3
   4 #ifndef _POWER_CTRL_LOGIC_H_
   5 #define _POWER_CTRL_LOGIC_H_
   6
   7 #include <linux/gpio/consumer.h>
   8 #include <linux/mutex.h>
   9 #include <linux/pci.h>
  10
  11 /* pci id for probe power control logic*/
  12 #define PCL_PCI_BRG_VEN_ID 0x8086
  13 #define PCL_PCI_BRG_PDT_ID 0x9a14
  14
  15 #define PCL_DRV_NAME "power_ctrl_logic"
  16 #define PCL_PROBE_MAX_TRY 5
  17 #define PCL_PROBE_TRY_GAP 500 /* in millseconds */
  18
  19 struct power_ctrl_logic {
  20         /* gpio resource*/
  21         struct gpio_desc *reset_gpio;
  22         struct gpio_desc *powerdn_gpio;
  23         struct gpio_desc *clocken_gpio;
  24         struct gpio_desc *indled_gpio;
  25         /* status */
  26         struct mutex status_lock;
  27         bool power_on;
  28         bool gpio_ready;
  29 };
  30
  31 /* exported function for extern module */
  32 int power_ctrl_logic_set_power(int on);
  33 #endif