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42cd0ab476
RO and RW of EC may have different EC protocol version. If EC transitions between RO and RW, but AP does not reboot (this is true for fingerprint microcontroller / cros_fp, but not true for main ec / cros_ec), the AP still uses the protocol version queried before transition, which can cause problems. In the case of fingerprint microcontroller, this causes AP to send the wrong version of EC_CMD_GET_NEXT_EVENT to RO in the interrupt handler, which in turn prevents RO to clear the interrupt line to AP, in an infinite loop. Once an EC_HOST_EVENT_INTERFACE_READY is received, we know that there might have been a transition between RO and RW, so re-query the protocol. Signed-off-by: Yicheng Li <yichengli@chromium.org> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Gwendal Grignou <gwendal@chromium.org> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> |
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| .. | ||
| wilco_ec | ||
| chromeos_laptop.c | ||
| chromeos_pstore.c | ||
| chromeos_tbmc.c | ||
| cros_ec_chardev.c | ||
| cros_ec_debugfs.c | ||
| cros_ec_i2c.c | ||
| cros_ec_ishtp.c | ||
| cros_ec_lightbar.c | ||
| cros_ec_lpc_mec.c | ||
| cros_ec_lpc_mec.h | ||
| cros_ec_lpc.c | ||
| cros_ec_proto.c | ||
| cros_ec_rpmsg.c | ||
| cros_ec_sensorhub.c | ||
| cros_ec_spi.c | ||
| cros_ec_sysfs.c | ||
| cros_ec_trace.c | ||
| cros_ec_trace.h | ||
| cros_ec_vbc.c | ||
| cros_ec.c | ||
| cros_ec.h | ||
| cros_kbd_led_backlight.c | ||
| cros_usbpd_logger.c | ||
| cros_usbpd_notify.c | ||
| Kconfig | ||
| Makefile | ||