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ACPI fixes for 6.2-rc5

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- Update the ACPICA development list address in MAINTAINERS to the new
    one that does not bounce (Rafael Wysocki).
 
  - Check whether EFI runtime is available when registering the ACPI PRM
    address space handler and when running it (Ard Biesheuvel).
 
  - Add backlight=native DMI quirk for Acer Aspire 4810T to the ACPI
    video driver (Hans de Goede).
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Merge tag 'acpi-6.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fixes from Rafael Wysocki:
 "These update the ACPICA entry in MAINTAINERS, add a backlight handling
  quirk and fix the ACPI PRM (platform runtime) mechanism support.

  Specifics:

   - Update the ACPICA development list address in MAINTAINERS to the
     new one that does not bounce (Rafael Wysocki)

   - Check whether EFI runtime is available when registering the ACPI
     PRM address space handler and when running it (Ard Biesheuvel)

   - Add backlight=native DMI quirk for Acer Aspire 4810T to the ACPI
     video driver (Hans de Goede)"

* tag 'acpi-6.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: PRM: Check whether EFI runtime is available
  ACPI: video: Add backlight=native DMI quirk for Acer Aspire 4810T
  MAINTAINERS: Update the ACPICA development list address
This commit is contained in:
Linus Torvalds 2023-01-20 11:11:35 -08:00
commit fe563a2c55
3 changed files with 19 additions and 1 deletions
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2
MAINTAINERS
View File

@ -383,7 +383,7 @@ ACPI COMPONENT ARCHITECTURE (ACPICA)
M: Robert Moore <robert.moore@intel.com>
M: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
L: linux-acpi@vger.kernel.org
L: devel@acpica.org
L: acpica-devel@lists.linuxfoundation.org
S: Supported
W: https://acpica.org/
W: https://github.com/acpica/acpica/

10
drivers/acpi/prmt.c
View File

@ -236,6 +236,11 @@ static acpi_status acpi_platformrt_space_handler(u32 function,
efi_status_t status;
struct prm_context_buffer context;
if (!efi_enabled(EFI_RUNTIME_SERVICES)) {
pr_err_ratelimited("PRM: EFI runtime services no longer available\n");
return AE_NO_HANDLER;
}
/*
* The returned acpi_status will always be AE_OK. Error values will be
* saved in the first byte of the PRM message buffer to be used by ASL.
@ -325,6 +330,11 @@ void __init init_prmt(void)
pr_info("PRM: found %u modules\n", mc);
if (!efi_enabled(EFI_RUNTIME_SERVICES)) {
pr_err("PRM: EFI runtime services unavailable\n");
return;
}
status = acpi_install_address_space_handler(ACPI_ROOT_OBJECT,
ACPI_ADR_SPACE_PLATFORM_RT,
&acpi_platformrt_space_handler,

8
drivers/acpi/video_detect.c
View File

@ -515,6 +515,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "Precision 7510"),
},
},
{
.callback = video_detect_force_native,
/* Acer Aspire 4810T */
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 4810T"),
},
},
{
.callback = video_detect_force_native,
/* Acer Aspire 5738z */