src/mainboard/google/brya/variants/marasov/fw_config.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <bootstate.h>
   4 #include <console/console.h>
   5 #include <fw_config.h>
   6 #include <gpio.h>
   7
   8 static const struct pad_config touch_enable_pads[] = {
   9         /* C0  : SMBCLK ==> EN_PP3300_TCHSCR */
  10         PAD_CFG_GPO(GPP_C0, 1, DEEP),
  11 };
  12
  13 static const struct pad_config touch_disable_pads[] = {
  14         /* C0  : SMBCLK ==> NC */
  15         PAD_NC(GPP_C0, NONE),
  16 };
  17
  18 static void fw_config_handle(void *unused)
  19 {
  20         if (fw_config_probe(FW_CONFIG(TOUCH, TOUCH_ELAN0001))) {
  21                 printk(BIOS_INFO, "Configure Touch GPIO GPP_C0 to GPO_H.\n");
  22                 gpio_configure_pads(touch_enable_pads, ARRAY_SIZE(touch_enable_pads));
  23         } else {
  24                 printk(BIOS_INFO, "Configure Touch GPIO GPP_C0 to NC.\n");
  25                 gpio_configure_pads(touch_disable_pads, ARRAY_SIZE(touch_disable_pads));
  26         }
  27 }
  28 BOOT_STATE_INIT_ENTRY(BS_DEV_ENABLE, BS_ON_ENTRY, fw_config_handle, NULL);