linux-dev/drivers/platform/chrome, branch master

Merge tag 'tag-chrome-platform-for-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux

2022-10-05T17:14:48Z

Pull chrome platform updates from Tzung-Bi Shih: "cros_ec_proto: - Fix protocol failure if EC firmware jumps to RO part cros_typec_switch: - Add USB Type-C switch driver for mode switches and retimers - Integrate to EC for retimers, status update, and mode switches - Clean-ups cros_ec_typec: - Clean-ups - Use partner PDOs to register USB PD capabilities chromeos_laptop: - Fix a double-free cros_ec_chardev: - Check data length from userland to avoid a memory corruption cros_ec: - Expose suspend_timeout_ms in debugfs - Notify the PM about wake events during resume" * tag 'tag-chrome-platform-for-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux: platform/chrome: cros_ec: Notify the PM of wake events during resume platform/chrome: cros_ec_typec: Register partner PDOs platform/chrome: cros_typec_switch: Inline DRV_NAME platform/chrome: cros_typec_switch: Use PTR_ERR_OR_ZERO() to simplify platform/chrome: cros_typec_switch: Remove impossible condition platform/chrome: cros_typec_switch: Add missing newline on printk platform/chrome: cros_ec_typec: Correct alt mode index platform/chrome: cros_ec_typec: Add bit offset for DP VDO platform/chrome: cros_ec: Expose suspend_timeout_ms in debugfs platform/chrome: fix memory corruption in ioctl platform/chrome: fix double-free in chromeos_laptop_prepare() platform/chrome: cros_ec_typec: Get retimer handle platform/chrome: cros_ec_typec: Cleanup switch handle return paths platform/chrome: cros_typec_switch: Register mode switches platform/chrome: cros_typec_switch: Add event check platform/chrome: cros_typec_switch: Set EC retimer platform/chrome: cros_typec_switch: Add switch driver platform/chrome: Add Type-C mux set command definitions platform/chrome: cros_ec_proto: Update version on GET_NEXT_EVENT failure

platform/chrome: cros_ec: Notify the PM of wake events during resume

2022-09-19T02:34:38Z

cros_ec_handle_event in the cros_ec driver can notify the PM of wake events. When a device is suspended, cros_ec_handle_event will not check MKBP events. Instead, received MKBP events are checked during resume by cros_ec_report_events_during_suspend. But cros_ec_report_events_during_suspend cannot notify the PM if received events are wake events, causing wake events to not be reported if received while the device is suspended. Update cros_ec_report_events_during_suspend to notify the PM of wake events during resume by calling pm_wakeup_event. Signed-off-by: Jameson Thies Reviewed-by: Prashant Malani Reviewed-by: Benson Leung Signed-off-by: Tzung-Bi Shih Link: https://lore.kernel.org/r/20220913204954.2931042-1-jthies@google.com

platform/chrome: cros_ec_typec: Register partner PDOs

2022-09-07T18:02:57Z

The ChromeOS EC exports partner source/sink cap PDOs (Power Data Objects) to the application processor (AP). Use this information to register USB PD (Power Delivery) capabilities with the USB Type-C Power Delivery device class. Cc: Heikki Krogerus Signed-off-by: Prashant Malani Reviewed-by: Heikki Krogerus Link: https://lore.kernel.org/r/20220830202018.1884851-1-pmalani@chromium.org [pmalani: Remove extra newline nit from original patch]

platform/chrome: cros_typec_switch: Inline DRV_NAME

2022-09-01T02:15:34Z

This macro is only used one place, let's inline it instead to save a line or two. Cc: Prashant Malani Cc: Tzung-Bi Shih Signed-off-by: Stephen Boyd Acked-by: Prashant Malani Signed-off-by: Tzung-Bi Shih Link: https://lore.kernel.org/r/20220830225831.2362403-5-swboyd@chromium.org

platform/chrome: cros_typec_switch: Use PTR_ERR_OR_ZERO() to simplify

2022-09-01T02:15:34Z

Use the standard error pointer macro to shorten the code and simplify. Cc: Prashant Malani Cc: Tzung-Bi Shih Signed-off-by: Stephen Boyd Acked-by: Prashant Malani Signed-off-by: Tzung-Bi Shih Link: https://lore.kernel.org/r/20220830225831.2362403-4-swboyd@chromium.org

platform/chrome: cros_typec_switch: Remove impossible condition

2022-09-01T02:15:34Z

The type of 'index' is unsigned long long, which can't possibly be less than zero. Remove the impossible check. Cc: Prashant Malani Cc: Tzung-Bi Shih Signed-off-by: Stephen Boyd Acked-by: Prashant Malani Signed-off-by: Tzung-Bi Shih Link: https://lore.kernel.org/r/20220830225831.2362403-3-swboyd@chromium.org

platform/chrome: cros_typec_switch: Add missing newline on printk

2022-09-01T02:15:34Z

We need a newline here to ensure the next printk starts fresh. Cc: Prashant Malani Cc: Tzung-Bi Shih Fixes: affc804c44c8 ("platform/chrome: cros_typec_switch: Add switch driver") Signed-off-by: Stephen Boyd Acked-by: Prashant Malani Signed-off-by: Tzung-Bi Shih Link: https://lore.kernel.org/r/20220830225831.2362403-2-swboyd@chromium.org

platform/chrome: cros_ec_typec: Correct alt mode index

2022-08-26T22:34:02Z

Alt mode indices used by USB PD (Power Delivery) start with 1, not 0. Update the alt mdoe registration code to factor this in to the alt mode descriptor. Fixes: de0f49487db3 ("platform/chrome: cros_ec_typec: Register partner altmodes") Signed-off-by: Prashant Malani Acked-by: Heikki Krogerus Reviewed-by: Tzung-Bi Shih Link: https://lore.kernel.org/r/20220819190807.1275937-3-pmalani@chromium.org

platform/chrome: cros_ec_typec: Add bit offset for DP VDO

2022-08-26T22:34:02Z

Use the right macro while constructing the DP_PORT_VDO to ensure the Pin Assignment offsets are correct. Fixes: 1ff5d97f070c ("platform/chrome: cros_ec_typec: Register port altmodes") Signed-off-by: Prashant Malani Acked-by: Heikki Krogerus Reviewed-by: Tzung-Bi Shih Link: https://lore.kernel.org/r/20220819190807.1275937-2-pmalani@chromium.org

platform/chrome: cros_ec: Expose suspend_timeout_ms in debugfs

2022-08-24T02:37:07Z

In modern Chromebooks, the embedded controller has a mechanism where it will watch a hardware-controlled line that toggles in suspend, and wake the system up if an expected sleep transition didn't occur. This can be very useful for detecting power management issues where the system appears to suspend, but doesn't actually reach its lowest expected power states. Sometimes it's useful in debug and test scenarios to be able to control the duration of that timeout, or even disable the EC timeout mechanism altogether. Add a debugfs control to set the timeout to values other than the EC-defined default, for more convenient debug and development iteration. Signed-off-by: Evan Green Reviewed-by: Prashant Malani Reviewed-by: Stephen Boyd Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20220822144026.v3.1.Idd188ff3f9caddebc17ac357a13005f93333c21f@changeid [tzungbi: fix one nit in Documentation/ABI/testing/debugfs-cros-ec.] Signed-off-by: Tzung-Bi Shih