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| author | Ingo Molnar <mingo@kernel.org> | 2023-01-18 11:56:01 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2023-01-18 11:56:57 +0100 |
| commit | 65adf3a57c0c2e79c5c2b72a4bdcabcab9e99ec1 (patch) | |
| tree | ee08845127f4cd8d6fc816fbaf0e5f6f4330bc58 /drivers/acpi/video_detect.c | |
| parent | 9fcad995c6c52cc9791f7ee9f1386a5684055f9c (diff) | |
| parent | 5dc4c995db9eb45f6373a956eb1f69460e69e6d4 (diff) | |
| download | linux-65adf3a57c0c2e79c5c2b72a4bdcabcab9e99ec1.tar.gz linux-65adf3a57c0c2e79c5c2b72a4bdcabcab9e99ec1.tar.bz2 linux-65adf3a57c0c2e79c5c2b72a4bdcabcab9e99ec1.zip | |
Merge tag 'v6.2-rc4' into perf/core, to pick up fixes
Move from the -rc1 base to the fresher -rc4 kernel that
has various fixes included, before applying a larger
patchset.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/acpi/video_detect.c')
| -rw-r--r-- | drivers/acpi/video_detect.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c index a934bbc9dd37..8a541efc5675 100644 --- a/drivers/acpi/video_detect.c +++ b/drivers/acpi/video_detect.c @@ -34,6 +34,7 @@ #include <linux/module.h> #include <linux/pci.h> #include <linux/platform_data/x86/nvidia-wmi-ec-backlight.h> +#include <linux/pnp.h> #include <linux/types.h> #include <linux/workqueue.h> #include <acpi/video.h> @@ -49,6 +50,10 @@ static void acpi_video_parse_cmdline(void) acpi_backlight_cmdline = acpi_backlight_video; if (!strcmp("native", acpi_video_backlight_string)) acpi_backlight_cmdline = acpi_backlight_native; + if (!strcmp("nvidia_wmi_ec", acpi_video_backlight_string)) + acpi_backlight_cmdline = acpi_backlight_nvidia_wmi_ec; + if (!strcmp("apple_gmux", acpi_video_backlight_string)) + acpi_backlight_cmdline = acpi_backlight_apple_gmux; if (!strcmp("none", acpi_video_backlight_string)) acpi_backlight_cmdline = acpi_backlight_none; } @@ -105,6 +110,26 @@ static bool nvidia_wmi_ec_supported(void) } #endif +static bool apple_gmux_backlight_present(void) +{ + struct acpi_device *adev; + struct device *dev; + + adev = acpi_dev_get_first_match_dev(GMUX_ACPI_HID, NULL, -1); + if (!adev) + return false; + + dev = acpi_get_first_physical_node(adev); + if (!dev) + return false; + + /* + * drivers/platform/x86/apple-gmux.c only supports old style + * Apple GMUX with an IO-resource. + */ + return pnp_get_resource(to_pnp_dev(dev), IORESOURCE_IO, 0) != NULL; +} + /* Force to use vendor driver when the ACPI device is known to be * buggy */ static int video_detect_force_vendor(const struct dmi_system_id *d) @@ -767,7 +792,7 @@ static enum acpi_backlight_type __acpi_video_get_backlight_type(bool native) if (nvidia_wmi_ec_present) return acpi_backlight_nvidia_wmi_ec; - if (apple_gmux_present()) + if (apple_gmux_backlight_present()) return acpi_backlight_apple_gmux; /* Use ACPI video if available, except when native should be preferred. */ |