From 918cb2ca3aacf6fa4bda71619fbeaea1c0257bdf Mon Sep 17 00:00:00 2001 From: Daisuke Nojiri Date: Wed, 22 Feb 2017 10:39:33 -0800 Subject: [PATCH] Reef: Fix power-up sequence for Anx3429 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 Reviewed-on: https://chromium-review.googlesource.com/445934 Reviewed-by: Kevin K Wong Reviewed-by: Nicolas Boichat --- board/reef/board.c | 20 ++++++++++++++++---- 1 file changed, 16 insertions(+), 4 deletions(-) diff --git a/board/reef/board.c b/board/reef/board.c index 2a0850da78..4ae14414fb 100644 --- a/board/reef/board.c +++ b/board/reef/board.c @@ -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; } }