From dfcbc331183dd8e4856d89255900353c76ec68cb Mon Sep 17 00:00:00 2001 From: Keith Short Date: Wed, 11 Nov 2020 12:59:18 -0700 Subject: terrador: Enabling sourcing of 4.5A on type-C ports To support USB4, source a total of 4.5A on the type-C ports. This ensures that if the first device requests 3A (15W), the chromebook continues to source 3A even after a second device is connected. BUG=b:172710638 BRANCH=firmware-volteer-13521.B-master TEST=make buildall Signed-off-by: Keith Short Change-Id: I9ca2314ca18d298e9dd6158eff7b7e1e2d673cf4 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2533513 Reviewed-by: Abe Levkoy --- board/terrador/board.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'board/terrador/board.h') diff --git a/board/terrador/board.h b/board/terrador/board.h index 16b1af04b7..ed1b059137 100644 --- a/board/terrador/board.h +++ b/board/terrador/board.h @@ -76,6 +76,12 @@ #define CONFIG_USB_PD_USB4 #define USBC_PORT_C0_BB_RETIMER_I2C_ADDR 0x40 #define USBC_PORT_C1_BB_RETIMER_I2C_ADDR 0x40 +/* + * For USB4, set the total budget for source current to 4.5A so that the first + * connected port is allowed to source 3A while sourcing 1.5A on other type-C + * ports. + */ +#define CONFIG_USB_PD_MAX_TOTAL_SOURCE_CURRENT 4500 /* USB Type A Features */ -- cgit v1.2.1