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rambi: Add config option for simplified USB power control

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It will be used by all variants of Rambi, so #ifdef BOARD_RAMBI is too
restrictive.

BUG=chrome-os-partner:24864
BRANCH=rambi
TEST=boot rambi 1.5 board; plug in USB mouse

Change-Id: I0ff02077388a6c6621c5746a693dde894cf8ad77
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/181682
Reviewed-by: Alec Berg <alecaberg@chromium.org>
This commit is contained in:
Randall Spangler
2014-01-06 15:02:10 -08:00
committed by chrome-internal-fetch
parent 9ccbedda19
commit 07fa71e7cc
3 changed files with 13 additions and 6 deletions
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1
board/rambi/board.h
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@@ -35,6 +35,7 @@
#define CONFIG_TEMP_SENSOR
#define CONFIG_TEMP_SENSOR_TMP432
#define CONFIG_USB_PORT_POWER_SMART
#define CONFIG_USB_PORT_POWER_SMART_SIMPLE
#define CONFIG_WIRELESS
#ifndef __ASSEMBLER__

12
common/usb_port_power_smart.c
View File

@@ -32,11 +32,11 @@ static uint8_t charge_mode[USB_CHARGE_PORT_COUNT];
static void usb_charge_set_control_mode(int port_id, int mode)
{
#ifdef BOARD_RAMBI
#ifdef CONFIG_USB_PORT_POWER_SMART_SIMPLE
/*
* Rambi has only a single shared control signal, so the last mode set
* to either port wins. Also, only CTL1 can be set; the other pins
* are hard-wired.
* One single shared control signal, so the last mode set to either
* port wins. Also, only CTL1 can be set; the other pins are
* hard-wired.
*/
gpio_set_level(GPIO_USB_CTL1, mode & 0x4);
#else
@@ -62,8 +62,8 @@ static void usb_charge_set_enabled(int port_id, int en)
static void usb_charge_set_ilim(int port_id, int sel)
{
#ifdef BOARD_RAMBI
/* Rambi has a shared ILIM_SEL signal too */
#ifdef CONFIG_USB_PORT_POWER_SMART_SIMPLE
/* ILIM_SEL signal is shared too */
gpio_set_level(GPIO_USB_ILIM_SEL, sel);
#else
if (port_id == 0)

6
include/config.h
View File

@@ -734,6 +734,12 @@
*/
#undef CONFIG_USB_PORT_POWER_SMART
/*
* Smart USB power control can use a full set of control signals to the USB
* port power chip, or a reduced set. If this is defined, use the reduced set.
*/
#undef CONFIG_USB_PORT_POWER_SMART_SIMPLE
/* Support the TSU6721 I2C smart switch */
#undef CONFIG_USB_SWITCH_TSU6721