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Reef: Fix power-up sequence for Anx3429

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Power-up sequence must bring up PWR_NE followed by RESETN according
to Figure 5-16 of the datasheet.

BUG=chrome-os-partner:63045
BRANCH=none
TEST=Test charging, external monitor, usb flash drive in s0/s3/s5.

Change-Id: I0e69f0fd0a06f3c828ca59172e0ca045cdc4f5d7
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/445934
Reviewed-by: Kevin K Wong <kevin.k.wong@intel.com>
Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>
This commit is contained in:
Daisuke Nojiri
2017-02-22 10:39:33 -08:00
committed by chrome-bot
parent 416cdfd36e
commit 918cb2ca3a
1 changed files with 16 additions and 4 deletions
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20
board/reef/board.c
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@@ -295,10 +295,22 @@ struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_COUNT] = {
/* called from anx74xx_set_power_mode() */
void board_set_tcpc_power_mode(int port, int mode)
{
if (port == 0) {
gpio_set_level(GPIO_USB_C0_PD_RST_L, mode);
msleep(mode ? 10 : 1);
gpio_set_level(GPIO_EN_USB_TCPC_PWR, mode);
if (port != USB_PD_PORT_ANX74XX)
return;
switch (mode) {
case ANX74XX_NORMAL_MODE:
gpio_set_level(GPIO_EN_USB_TCPC_PWR, 1);
msleep(10);
gpio_set_level(GPIO_USB_C0_PD_RST_L, 1);
break;
case ANX74XX_STANDBY_MODE:
gpio_set_level(GPIO_USB_C0_PD_RST_L, 0);
msleep(1);
gpio_set_level(GPIO_EN_USB_TCPC_PWR, 0);
break;
default:
break;
}
}