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Diffstat (limited to 'drivers/acpi/video_detect.c')
-rw-r--r--drivers/acpi/video_detect.c205
1 files changed, 197 insertions, 8 deletions
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 18cc08c858cf..4cf74f173c78 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -54,6 +54,8 @@ static void acpi_video_parse_cmdline(void)
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("dell_uart", acpi_video_backlight_string))
+ acpi_backlight_cmdline = acpi_backlight_dell_uart;
if (!strcmp("none", acpi_video_backlight_string))
acpi_backlight_cmdline = acpi_backlight_none;
}
@@ -130,6 +132,16 @@ static int video_detect_force_native(const struct dmi_system_id *d)
return 0;
}
+static int video_detect_portege_r100(const struct dmi_system_id *d)
+{
+ struct pci_dev *dev;
+ /* Search for Trident CyberBlade XP4m32 to confirm Portégé R100 */
+ dev = pci_get_device(PCI_VENDOR_ID_TRIDENT, 0x2100, NULL);
+ if (dev)
+ acpi_backlight_dmi = acpi_backlight_vendor;
+ return 0;
+}
+
static const struct dmi_system_id video_detect_dmi_table[] = {
/*
* Models which should use the vendor backlight interface,
@@ -229,14 +241,6 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
DMI_MATCH(DMI_BOARD_NAME, "NC210/NC110"),
},
},
- {
- .callback = video_detect_force_vendor,
- /* Xiaomi Mi Pad 2 */
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Xiaomi Inc"),
- DMI_MATCH(DMI_PRODUCT_NAME, "Mipad2"),
- },
- },
/*
* Models which should use the vendor backlight interface,
@@ -250,6 +254,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "PCG-FRV35"),
},
},
+ {
+ .callback = video_detect_force_vendor,
+ /* Panasonic Toughbook CF-18 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Matsushita Electric Industrial"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "CF-18"),
+ },
+ },
/*
* Toshiba models with Transflective display, these need to use
@@ -271,6 +283,22 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
},
/*
+ * Toshiba Portégé R100 has working both acpi_video and toshiba_acpi
+ * vendor driver. But none of them gets activated as it has a VGA with
+ * no kernel driver (Trident CyberBlade XP4m32).
+ * The DMI strings are generic so check for the VGA chip in callback.
+ */
+ {
+ .callback = video_detect_portege_r100,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Portable PC"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "Version 1.0"),
+ DMI_MATCH(DMI_BOARD_NAME, "Portable PC")
+ },
+ },
+
+ /*
* Models which need acpi_video backlight control where the GPU drivers
* do not call acpi_video_register_backlight() because no internal panel
* is detected. Typically these are all-in-ones (monitors with builtin
@@ -446,6 +474,15 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
},
},
{
+ /* https://bugzilla.suse.com/show_bug.cgi?id=1208724 */
+ .callback = video_detect_force_native,
+ /* Lenovo Ideapad Z470 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "IdeaPad Z470"),
+ },
+ },
+ {
/* https://bugzilla.redhat.com/show_bug.cgi?id=1187004 */
.callback = video_detect_force_native,
/* Lenovo Ideapad Z570 */
@@ -472,6 +509,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
},
{
.callback = video_detect_force_native,
+ /* Lenovo Slim 7 16ARH7 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "82UX"),
+ },
+ },
+ {
+ .callback = video_detect_force_native,
/* Lenovo ThinkPad X131e (3371 AMD version) */
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
@@ -487,6 +532,56 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
},
},
{
+ /* https://gitlab.freedesktop.org/drm/amd/-/issues/1838 */
+ .callback = video_detect_force_native,
+ /* Apple iMac12,1 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "iMac12,1"),
+ },
+ },
+ {
+ /* https://gitlab.freedesktop.org/drm/amd/-/issues/2753 */
+ .callback = video_detect_force_native,
+ /* Apple iMac12,2 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "iMac12,2"),
+ },
+ },
+ {
+ .callback = video_detect_force_native,
+ /* Apple MacBook Air 7,2 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir7,2"),
+ },
+ },
+ {
+ .callback = video_detect_force_native,
+ /* Apple MacBook Air 9,1 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir9,1"),
+ },
+ },
+ {
+ .callback = video_detect_force_native,
+ /* Apple MacBook Pro 9,2 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro9,2"),
+ },
+ },
+ {
+ .callback = video_detect_force_native,
+ /* Apple MacBook Pro 11,2 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro11,2"),
+ },
+ },
+ {
/* https://bugzilla.redhat.com/show_bug.cgi?id=1217249 */
.callback = video_detect_force_native,
/* Apple MacBook Pro 12,1 */
@@ -497,6 +592,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
},
{
.callback = video_detect_force_native,
+ /* Apple MacBook Pro 16,2 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro16,2"),
+ },
+ },
+ {
+ .callback = video_detect_force_native,
/* Dell Inspiron N4010 */
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
@@ -753,6 +856,30 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
},
/*
+ * Dell AIO (All in Ones) which advertise an UART attached backlight
+ * controller board in their ACPI tables (and may even have one), but
+ * which need native backlight control nevertheless.
+ */
+ {
+ /* https://github.com/zabbly/linux/issues/26 */
+ .callback = video_detect_force_native,
+ /* Dell OptiPlex 5480 AIO */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 5480 AIO"),
+ },
+ },
+ {
+ /* https://bugzilla.redhat.com/show_bug.cgi?id=2303936 */
+ .callback = video_detect_force_native,
+ /* Dell OptiPlex 7760 AIO */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 7760 AIO"),
+ },
+ },
+
+ /*
* Models which have nvidia-ec-wmi support, but should not use it.
* Note this indicates a likely firmware bug on these models and should
* be revisited if/when Linux gets support for dynamic mux mode.
@@ -772,6 +899,63 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 15 3535"),
},
},
+
+ /*
+ * x86 android tablets which directly control the backlight through
+ * an external backlight controller, typically TI's LP8557.
+ * The backlight is directly controlled by the lp855x driver on these.
+ * This setup means that neither i915's native nor acpi_video backlight
+ * control works. Add a "vendor" quirk to disable both. Note these
+ * devices do not use vendor control in the typical meaning of
+ * vendor specific SMBIOS or ACPI calls being used.
+ */
+ {
+ .callback = video_detect_force_vendor,
+ /* Lenovo Yoga Book X90F / X90L */
+ .matches = {
+ DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
+ DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "CHERRYVIEW D1 PLATFORM"),
+ DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "YETI-11"),
+ },
+ },
+ {
+ .callback = video_detect_force_vendor,
+ /*
+ * Lenovo Yoga Tablet 2 830F/L or 1050F/L (The 8" and 10"
+ * Lenovo Yoga Tablet 2 use the same mainboard)
+ */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Intel Corp."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "VALLEYVIEW C0 PLATFORM"),
+ DMI_MATCH(DMI_BOARD_NAME, "BYT-T FFD8"),
+ /* Partial match on beginning of BIOS version */
+ DMI_MATCH(DMI_BIOS_VERSION, "BLADE_21"),
+ },
+ },
+ {
+ .callback = video_detect_force_vendor,
+ /* Lenovo Yoga Tab 3 Pro YT3-X90F */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "Blade3-10A-001"),
+ },
+ },
+ {
+ .callback = video_detect_force_vendor,
+ /* Xiaomi Mi Pad 2 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Xiaomi Inc"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Mipad2"),
+ },
+ },
+ /* https://gitlab.freedesktop.org/drm/amd/-/issues/4512 */
+ {
+ .callback = video_detect_force_native,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "82K8"),
+ },
+ },
{ },
};
@@ -799,6 +983,7 @@ enum acpi_backlight_type __acpi_video_get_backlight_type(bool native, bool *auto
static DEFINE_MUTEX(init_mutex);
static bool nvidia_wmi_ec_present;
static bool apple_gmux_present;
+ static bool dell_uart_present;
static bool native_available;
static bool init_done;
static long video_caps;
@@ -813,6 +998,7 @@ enum acpi_backlight_type __acpi_video_get_backlight_type(bool native, bool *auto
&video_caps, NULL);
nvidia_wmi_ec_present = nvidia_wmi_ec_supported();
apple_gmux_present = apple_gmux_detect(NULL, NULL);
+ dell_uart_present = acpi_dev_present("DELL0501", NULL, -1);
init_done = true;
}
if (native)
@@ -843,6 +1029,9 @@ enum acpi_backlight_type __acpi_video_get_backlight_type(bool native, bool *auto
if (apple_gmux_present)
return acpi_backlight_apple_gmux;
+ if (dell_uart_present)
+ return acpi_backlight_dell_uart;
+
/* Use ACPI video if available, except when native should be preferred. */
if ((video_caps & ACPI_VIDEO_BACKLIGHT) &&
!(native_available && prefer_native_over_acpi_video()))
generated by cgit (git 2.34.1) at 2025-12-22 00:15:15 +0000