OrgACRN
/
acrn-kernel
mirror of https://github.com/projectacrn/acrn-kernel.git
1
0
Fork 0
Code Issues Releases Wiki Activity

drm/privacy_screen_x86: Add entry for ChromeOS privacy-screen 

Add a static entry in the x86 table, to detect and wait for
privacy-screen on some ChromeOS platforms.

Please note that this means that if CONFIG_CHROMEOS_PRIVACY_SCREEN is
enabled, and if "GOOG0010" device is found in ACPI, then the i915 probe
shall return EPROBE_DEFER until a platform driver actually registers the
privacy-screen: https://hansdegoede.livejournal.com/25948.html

Signed-off-by: Rajat Jain <rajatja@google.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220107190208.95479-3-rajatja@google.com
This commit is contained in:
Rajat Jain 2022-01-07 11:02:08 -08:00 committed by Hans de Goede
parent 3fb57847f6
commit 0af2e827b6
1 changed files with 17 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
drivers/gpu/drm/drm_privacy_screen_x86.c
View File

@ -47,6 +47,13 @@ static bool __init detect_thinkpad_privacy_screen(void)
}
#endif
#if IS_ENABLED(CONFIG_CHROMEOS_PRIVACY_SCREEN)
static bool __init detect_chromeos_privacy_screen(void)
{
return acpi_dev_present("GOOG0010", NULL, -1);
}
#endif
static const struct arch_init_data arch_init_data[] __initconst = {
#if IS_ENABLED(CONFIG_THINKPAD_ACPI)
{
@ -58,6 +65,16 @@ static const struct arch_init_data arch_init_data[] __initconst = {
.detect = detect_thinkpad_privacy_screen,
},
#endif
#if IS_ENABLED(CONFIG_CHROMEOS_PRIVACY_SCREEN)
{
.lookup = {
.dev_id = NULL,
.con_id = NULL,
.provider = "privacy_screen-GOOG0010:00",
},
.detect = detect_chromeos_privacy_screen,
},
#endif
};
void __init drm_privacy_screen_lookup_init(void)