xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

mfd: cros-ec: Increase maximum mkbp event size

Browse Source 
Having a 16 byte mkbp event size makes it possible to send CEC
messages from the EC to the AP directly inside the mkbp event
instead of first doing a notification and then a read.

Signed-off-by: Stefan Adolfsson <sadolfsson@chromium.org>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Neil Armstrong
2018-07-04 17:08:18 +02:00
committed by Lee Jones
parent 9c229127ae
commit 57e94c8b97
3 changed files with 48 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
include/linux/mfd/cros_ec.h
View File

@@ -147,7 +147,7 @@ struct cros_ec_device {
bool mkbp_event_supported;
struct blocking_notifier_head event_notifier;
struct ec_response_get_next_event event_data;
struct ec_response_get_next_event_v1 event_data;
int event_size;
u32 host_event_wake_mask;
};

16
include/linux/mfd/cros_ec_commands.h
View File

@@ -2093,12 +2093,28 @@ union ec_response_get_next_data {
uint32_t sysrq;
} __packed;
union ec_response_get_next_data_v1 {
uint8_t key_matrix[16];
uint32_t host_event;
uint32_t buttons;
uint32_t switches;
uint32_t sysrq;
uint32_t cec_events;
uint8_t cec_message[16];
} __packed;
struct ec_response_get_next_event {
uint8_t event_type;
/* Followed by event data if any */
union ec_response_get_next_data data;
} __packed;
struct ec_response_get_next_event_v1 {
uint8_t event_type;
/* Followed by event data if any */
union ec_response_get_next_data_v1 data;
} __packed;
/* Bit indices for buttons and switches.*/
/* Buttons */
#define EC_MKBP_POWER_BUTTON 0