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Enable PD communication in RO for external display

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This patch makes EC enable PD communication if it's running in
manual recovery mode. This is required to show recovery screen
on a type-c monitor.

This patch also makes EC-EFS ignore power availability. It will
make EC verify & jump to RW even if power is sourced by a barrel
jack adapter. This should allow depthcharge to show screens
(e.g. broken, warning) on a type-c monitor.

BUG=b:72387533
BRANCH=none
TEST=On Fizz with type-c monitor, verify
- Recovery screen is displayed in manual recovery mode.
- Critical update screen is displayed in normal mode.
- Warning screen is displayed in developer mode.
Monitors tested: Dingdong, Dell S2718D

Change-Id: Ib53e02d1e5c0f5b2d96d9a02fd33022f92e52b04
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/898346
Reviewed-by: Randall Spangler <rspangler@chromium.org>
This commit is contained in:
Daisuke Nojiri
2018-01-25 12:47:33 -08:00
committed by chrome-bot
parent cd5173dfe0
commit 044cc72496
6 changed files with 57 additions and 54 deletions
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7
board/fizz/board.c
View File

@@ -236,9 +236,10 @@ void board_tcpc_init(void)
{
int port, reg;
/* Only reset TCPC in RO boot. */
if (!system_jumped_to_this_image())
board_reset_pd_mcu();
/* This needs to be executed only once per boot. It could be run by RO
* if we boot in recovery mode. It could be run by RW if we boot in
* normal or dev mode. Note EFS makes RO jump to RW before HOOK_INIT. */
board_reset_pd_mcu();
/*
* Wake up PS8751. If PS8751 remains in low power mode after sysjump,

21
board/fizz/usb_pd_policy.c
View File

@@ -3,7 +3,6 @@
* found in the LICENSE file.
*/
#include "adc.h"
#include "atomic.h"
#include "extpower.h"
#include "charge_manager.h"
@@ -254,10 +253,9 @@ static int restore_active_charge_port(struct charge_port_info *cpi)
*/
static void board_charge_manager_init(void)
{
int input_voltage;
enum charge_port input_port;
int i, j;
enum charge_port port;
struct charge_port_info cpi = { 0 };
int i, j;
/* Initialize all charge suppliers to 0 */
for (i = 0; i < CHARGE_PORT_COUNT; i++) {
@@ -265,17 +263,19 @@ static void board_charge_manager_init(void)
charge_manager_update_charge(j, i, &cpi);
}
input_voltage = adc_read_channel(ADC_VBUS);
input_port = gpio_get_level(GPIO_ADP_IN_L) ?
port = gpio_get_level(GPIO_ADP_IN_L) ?
CHARGE_PORT_TYPEC0 : CHARGE_PORT_BARRELJACK;
CPRINTS("Power Source: p%d (%dmV)", input_port, input_voltage);
CPRINTS("Power source is p%d (%s)", port,
port == CHARGE_PORT_TYPEC0 ? "USB-C" : "BJ");
/* Initialize the power source supplier */
switch (input_port) {
switch (port) {
case CHARGE_PORT_TYPEC0:
typec_set_input_current_limit(input_port, 3000, input_voltage);
typec_set_input_current_limit(port, 3000, 5000);
break;
case CHARGE_PORT_BARRELJACK:
/* TODO: Once transition from GPIO to CBI completes, get BJ
* adapter info locally. No need to save & restore it. */
if (restore_active_charge_port(&cpi)) {
/* Set it to the default. Will be updated by AP. */
CPRINTS("Previous charge info not found. Use default.");
@@ -287,7 +287,8 @@ static void board_charge_manager_init(void)
break;
}
}
DECLARE_HOOK(HOOK_INIT, board_charge_manager_init, HOOK_PRIO_INIT_ADC + 1);
DECLARE_HOOK(HOOK_INIT, board_charge_manager_init,
HOOK_PRIO_CHARGE_MANAGER_INIT + 1);
static void preserve_active_charge_port(void)
{