Hi, On 5/5/21 12:33 AM, Limonciello, Mario wrote: > [AMD Public Use] > >> Subject: [PATCH] platform/x86: Add missing LPS0 functions for AMD > > Rafael might be willing to fix it up on commit, but if you end up needing to re-spin > I think technically this subsystem prefix to match other stuff committed to this file > should be: > > "ACPI: PM: s2idle:" Ack, please get the subject next right time. I was about the put this in a folder with patches to apply to the pdx86 kernel tree once 5.13-rc1 is out, but this should not go upstream through the pdx86 tree at all. Regards, Hans > >> >> These are supposedly not required for AMD platforms, >> but at least some HP laptops seem to require it to >> properly turn off the keyboard backlight. >> >> Based on a patch from Marcin Bachry <hegel666@xxxxxxxxx>. >> >> Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1230 >> Reviewed-by: Hans de Goede <hdegoede@xxxxxxxxxx> >> Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx> >> Cc: Marcin Bachry <hegel666@xxxxxxxxx> >> Cc: Mario Limonciello <mario.limonciello@xxxxxxx> >> --- >> >> Dropping patch 2/2 for now. This patch fixes several >> systems and doesn't appear to cause any issues. >> >> drivers/acpi/x86/s2idle.c | 4 ++++ >> 1 file changed, 4 insertions(+) >> >> diff --git a/drivers/acpi/x86/s2idle.c b/drivers/acpi/x86/s2idle.c >> index 2b69536cdccb..2d7ddb8a8cb6 100644 >> --- a/drivers/acpi/x86/s2idle.c >> +++ b/drivers/acpi/x86/s2idle.c >> @@ -42,6 +42,8 @@ static const struct acpi_device_id lps0_device_ids[] = { >> >> /* AMD */ >> #define ACPI_LPS0_DSM_UUID_AMD "e3f32452-febc-43ce-9039- >> 932122d37721" >> +#define ACPI_LPS0_ENTRY_AMD 2 >> +#define ACPI_LPS0_EXIT_AMD 3 >> #define ACPI_LPS0_SCREEN_OFF_AMD 4 >> #define ACPI_LPS0_SCREEN_ON_AMD 5 >> >> @@ -408,6 +410,7 @@ int acpi_s2idle_prepare_late(void) >> >> if (acpi_s2idle_vendor_amd()) { >> acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_OFF_AMD); >> + acpi_sleep_run_lps0_dsm(ACPI_LPS0_ENTRY_AMD); >> } else { >> acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_OFF); >> acpi_sleep_run_lps0_dsm(ACPI_LPS0_ENTRY); >> @@ -422,6 +425,7 @@ void acpi_s2idle_restore_early(void) >> return; >> >> if (acpi_s2idle_vendor_amd()) { >> + acpi_sleep_run_lps0_dsm(ACPI_LPS0_EXIT_AMD); >> acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_ON_AMD); >> } else { >> acpi_sleep_run_lps0_dsm(ACPI_LPS0_EXIT); >> -- >> 2.30.2 > _______________________________________________ amd-gfx mailing list amd-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/amd-gfx
