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elm: get VBUS statue from GPIO

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GPIO_USB_C0_VBUS_WAKE_L is used to show VBUS status on elm.
If VBUS is present, pd sends soft reset on boot.
So it can boot without battery.

BUG=chrome-os-partner:53496
BRANCH=none
TEST=test on elm.
Remove battery and boot up successfully only with AC.
Use "sysjump rw" command and ec won't reboot by pd hard reset.

Change-Id: I1cdb12894c7b6bc41d7a16802b8c0ef14e2aa426
Signed-off-by: YH Huang <yh.huang@mediatek.com>
Reviewed-on: https://chromium-review.googlesource.com/346261
Tested-by: Koro Chen <koro.chen@mediatek.com>
Reviewed-by: Shawn N <shawnn@chromium.org>
This commit is contained in:
YH Huang
2016-05-20 17:45:39 +08:00
committed by chrome-bot
parent 9d903a7867
commit abe2a55191
3 changed files with 6 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
board/elm/board.c
View File

@@ -238,7 +238,7 @@ static void board_init(void)
board_reset_pd_mcu();
/* Update VBUS supplier */
usb_charger_vbus_change(0, !gpio_get_level(GPIO_USB_C0_VBUS_WAKE_L));
usb_charger_vbus_change(0, pd_snk_is_vbus_provided(0));
/* Remap SPI2 to DMA channels 6 and 7 */
REG32(STM32_DMA1_BASE + 0xa8) |= (1 << 20) | (1 << 21) |

1
board/elm/board.h
View File

@@ -93,7 +93,6 @@
#define CONFIG_USB_PD_TCPM_MUX
#define CONFIG_USB_PD_TCPM_TCPCI
#define CONFIG_USB_PD_TRY_SRC
#define CONFIG_USB_PD_TCPM_VBUS
#undef CONFIG_TCPC_I2C_BASE_ADDR
#define CONFIG_TCPC_I2C_BASE_ADDR 0x58
#define CONFIG_USB_PD_ANX7688

5
board/elm/usb_pd_policy.c
View File

@@ -95,6 +95,11 @@ void typec_set_input_current_limit(int port, uint32_t max_ma,
charge_manager_update_charge(CHARGE_SUPPLIER_TYPEC, port, &charge);
}
int pd_snk_is_vbus_provided(int port)
{
return !gpio_get_level(GPIO_USB_C0_VBUS_WAKE_L);
}
int pd_board_checks(void)
{
return EC_SUCCESS;