On 7/28/23 11:54 AM, Tzung-Bi Shih wrote: > Support official HID GOOG0016 for ChromeOS ACPI (see [1]). > > [1]: https://crrev.com/c/2266713 > > Signed-off-by: Tzung-Bi Shih <tzungbi@xxxxxxxxxx> Looks good other than the documentation. Reviewed-by: Muhammad Usama Anjum <usama.anjum@xxxxxxxxxxxxx> > --- > Changes from v1[2]: > - Preserve the PNP ID GGL0001 for backward compatible to older firmwares. > - Modify commit title and message accordingly. > > [2]: https://patchwork.kernel.org/project/chrome-platform/patch/20230728014256.3836298-1-tzungbi@xxxxxxxxxx/ > > .../ABI/testing/sysfs-driver-chromeos-acpi | 30 +++++++++---------- > .../acpi/chromeos-acpi-device.rst | 5 ++-- > drivers/platform/chrome/chromeos_acpi.c | 2 +- > 3 files changed, 18 insertions(+), 19 deletions(-) > > diff --git a/Documentation/ABI/testing/sysfs-driver-chromeos-acpi b/Documentation/ABI/testing/sysfs-driver-chromeos-acpi > index c308926e1568..8e8a5d6610b8 100644 > --- a/Documentation/ABI/testing/sysfs-driver-chromeos-acpi > +++ b/Documentation/ABI/testing/sysfs-driver-chromeos-acpi > @@ -1,4 +1,4 @@ > -What: /sys/bus/platform/devices/GGL0001:*/BINF.2 > +What: /sys/bus/platform/devices/GOOG0016:*/BINF.2 Probably just replace the GGL0001:* with G* here and define the G* can be GGL0001:* or GOOG0016:*. > Date: May 2022 > KernelVersion: 5.19 > Description: > @@ -9,7 +9,7 @@ Description: > 1 Rewritable firmware. > == =============================== > > -What: /sys/bus/platform/devices/GGL0001:*/BINF.3 > +What: /sys/bus/platform/devices/GOOG0016:*/BINF.3 > Date: May 2022 > KernelVersion: 5.19 > Description: > @@ -22,7 +22,7 @@ Description: > 3 Netboot (factory installation only). > == ===================================== > > -What: /sys/bus/platform/devices/GGL0001:*/CHSW > +What: /sys/bus/platform/devices/GOOG0016:*/CHSW > Date: May 2022 > KernelVersion: 5.19 > Description: > @@ -37,28 +37,28 @@ Description: > 512 Firmware write protection was disabled. > ==== =========================================== > > -What: /sys/bus/platform/devices/GGL0001:*/FMAP > +What: /sys/bus/platform/devices/GOOG0016:*/FMAP > Date: May 2022 > KernelVersion: 5.19 > Description: > Returns physical memory address of the start of the main > processor firmware flashmap. > > -What: /sys/bus/platform/devices/GGL0001:*/FRID > +What: /sys/bus/platform/devices/GOOG0016:*/FRID > Date: May 2022 > KernelVersion: 5.19 > Description: > Returns firmware version for the read-only portion of the > main processor firmware. > > -What: /sys/bus/platform/devices/GGL0001:*/FWID > +What: /sys/bus/platform/devices/GOOG0016:*/FWID > Date: May 2022 > KernelVersion: 5.19 > Description: > Returns firmware version for the rewritable portion of the > main processor firmware. > > -What: /sys/bus/platform/devices/GGL0001:*/GPIO.X/GPIO.0 > +What: /sys/bus/platform/devices/GOOG0016:*/GPIO.X/GPIO.0 > Date: May 2022 > KernelVersion: 5.19 > Description: > @@ -72,7 +72,7 @@ Description: > 256 to 511 Debug header GPIO 0 to GPIO 255. > =========== ================================== > > -What: /sys/bus/platform/devices/GGL0001:*/GPIO.X/GPIO.1 > +What: /sys/bus/platform/devices/GOOG0016:*/GPIO.X/GPIO.1 > Date: May 2022 > KernelVersion: 5.19 > Description: > @@ -83,26 +83,26 @@ Description: > 1 Signal is active high. > == ======================= > > -What: /sys/bus/platform/devices/GGL0001:*/GPIO.X/GPIO.2 > +What: /sys/bus/platform/devices/GOOG0016:*/GPIO.X/GPIO.2 > Date: May 2022 > KernelVersion: 5.19 > Description: > Returns the GPIO number on the specified GPIO > controller. > > -What: /sys/bus/platform/devices/GGL0001:*/GPIO.X/GPIO.3 > +What: /sys/bus/platform/devices/GOOG0016:*/GPIO.X/GPIO.3 > Date: May 2022 > KernelVersion: 5.19 > Description: > Returns name of the GPIO controller. > > -What: /sys/bus/platform/devices/GGL0001:*/HWID > +What: /sys/bus/platform/devices/GOOG0016:*/HWID > Date: May 2022 > KernelVersion: 5.19 > Description: > Returns hardware ID for the Chromebook. > > -What: /sys/bus/platform/devices/GGL0001:*/MECK > +What: /sys/bus/platform/devices/GOOG0016:*/MECK > Date: May 2022 > KernelVersion: 5.19 > Description: > @@ -112,7 +112,7 @@ Description: > Engine firmware has not changed. If Management Engine is not > present, or if the firmware was unable to read the extended registers, this buffer size can be zero. > > -What: /sys/bus/platform/devices/GGL0001:*/VBNV.0 > +What: /sys/bus/platform/devices/GOOG0016:*/VBNV.0 > Date: May 2022 > KernelVersion: 5.19 > Description: > @@ -121,14 +121,14 @@ Description: > (that is, 'offset = 0' is the byte following the 14 bytes of > clock data). > > -What: /sys/bus/platform/devices/GGL0001:*/VBNV.1 > +What: /sys/bus/platform/devices/GOOG0016:*/VBNV.1 > Date: May 2022 > KernelVersion: 5.19 > Description: > Return the size in bytes of the verified boot non-volatile > storage block. > > -What: /sys/bus/platform/devices/GGL0001:*/VDAT > +What: /sys/bus/platform/devices/GOOG0016:*/VDAT > Date: May 2022 > KernelVersion: 5.19 > Description: > diff --git a/Documentation/firmware-guide/acpi/chromeos-acpi-device.rst b/Documentation/firmware-guide/acpi/chromeos-acpi-device.rst > index f37fc90ce340..89419e116413 100644 > --- a/Documentation/firmware-guide/acpi/chromeos-acpi-device.rst > +++ b/Documentation/firmware-guide/acpi/chromeos-acpi-device.rst > @@ -5,9 +5,8 @@ Chrome OS ACPI Device > ===================== > > Hardware functionality specific to Chrome OS is exposed through a Chrome OS ACPI device. > -The plug and play ID of a Chrome OS ACPI device is GGL0001. GGL is a valid PNP ID of Google. > -PNP ID can be used with the ACPI devices according to the guidelines. The following ACPI > -objects are supported: > +The plug and play ID of a Chrome OS ACPI device is GGL0001 and the hardware ID is > +GOOG0016. The following ACPI objects are supported: Looks good. Probably GOOG0016 is HID which has higher preference over GGL0001 which is CID if both are defined in firmware? > > .. flat-table:: Supported ACPI Objects > :widths: 1 2 > diff --git a/drivers/platform/chrome/chromeos_acpi.c b/drivers/platform/chrome/chromeos_acpi.c > index 50d8a4d4352d..1cc01d893ada 100644 > --- a/drivers/platform/chrome/chromeos_acpi.c > +++ b/drivers/platform/chrome/chromeos_acpi.c > @@ -235,9 +235,9 @@ static int chromeos_acpi_device_probe(struct platform_device *pdev) > return 0; > } > > -/* GGL is valid PNP ID of Google. PNP ID can be used with the ACPI devices. */ > static const struct acpi_device_id chromeos_device_ids[] = { > { "GGL0001", 0 }, > + { "GOOG0016", 0 }, > {} > }; > MODULE_DEVICE_TABLE(acpi, chromeos_device_ids); -- BR, Muhammad Usama Anjum
