On Wed, 03 Nov 2021, Daniel Thompson wrote:
On Wed, Nov 03, 2021 at 06:28:15PM +0100, Hans de Goede wrote:
Hi,
On 11/3/21 18:17, Daniel Thompson wrote:
On Tue, Nov 02, 2021 at 11:55:04PM +0100, Hans de Goede wrote:
The Xiaomi Mi Pad 2 tablet uses an ACPI enumerated LP8556 backlight controller for its LCD-panel, with a Xiaomi specific ACPI HID of "XMCC0001", add support for this.
Note the new "if (id)" check also fixes a NULL pointer deref when a user tries to manually bind the driver from sysfs.
When CONFIG_ACPI is disabled acpi_match_device() will always return NULL, so the lp855x_parse_acpi() call will get optimized away.
Signed-off-by: Hans de Goede hdegoede@redhat.com
Reviewed-by: Daniel Thompson daniel.thompson@linaro.org
Thank you.
So what is the process for upstreaming backlight patches, do these go through drm-misc-next (in that case I can push the series myself), or will you pick these up ?
Lee Jones gathers up the backlight patches and sends a PR (but, except in exceptional cases, treats my R-b as a pre-requisite before doing so).
Also the merge-window is open, so this is headed for v5.17.