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@xxxxxxxxxx> > > > > > > Reviewed-by: Daniel Thompson <daniel.thompson@xxxxxxxxxx> > > > > 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. -- Lee Jones [李琼斯] Senior Technical Lead - Developer Services Linaro.org │ Open source software for Arm SoCs Follow Linaro: Facebook | Twitter | Blog
