diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_acpi.c | 36 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_bios.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_bios.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_connector.c | 17 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_drv.h | 2 |
5 files changed, 59 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_acpi.c b/drivers/gpu/drm/nouveau/nouveau_acpi.c index 381d3851f5c3..c17a055ee3e5 100644 --- a/drivers/gpu/drm/nouveau/nouveau_acpi.c +++ b/drivers/gpu/drm/nouveau/nouveau_acpi.c @@ -3,6 +3,7 @@ #include <linux/slab.h> #include <acpi/acpi_drivers.h> #include <acpi/acpi_bus.h> +#include <acpi/video.h> #include "drmP.h" #include "drm.h" @@ -11,6 +12,7 @@ #include "nouveau_drv.h" #include "nouveau_drm.h" #include "nv50_display.h" +#include "nouveau_connector.h" #include <linux/vga_switcheroo.h> @@ -259,3 +261,37 @@ int nouveau_acpi_get_bios_chunk(uint8_t *bios, int offset, int len) { return nouveau_rom_call(nouveau_dsm_priv.rom_handle, bios, offset, len); } + +int +nouveau_acpi_edid(struct drm_device *dev, struct drm_connector *connector) +{ + struct nouveau_connector *nv_connector = nouveau_connector(connector); + struct acpi_device *acpidev; + acpi_handle handle; + int type, ret; + void *edid; + + switch (connector->connector_type) { + case DRM_MODE_CONNECTOR_LVDS: + case DRM_MODE_CONNECTOR_eDP: + type = ACPI_VIDEO_DISPLAY_LCD; + break; + default: + return -EINVAL; + } + + handle = DEVICE_ACPI_HANDLE(&dev->pdev->dev); + if (!handle) + return -ENODEV; + + ret = acpi_bus_get_device(handle, &acpidev); + if (ret) + return -ENODEV; + + ret = acpi_video_get_edid(acpidev, type, -1, &edid); + if (ret < 0) + return ret; + + nv_connector->edid = edid; + return 0; +} diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c index 2297bbc88c6f..256c6ed7d9e0 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bios.c +++ b/drivers/gpu/drm/nouveau/nouveau_bios.c @@ -5622,7 +5622,9 @@ parse_dcb20_entry(struct drm_device *dev, struct dcb_table *dcb, if (conf & 0x4 || conf & 0x8) entry->lvdsconf.use_power_scripts = true; } else { - mask = ~0x5; + mask = ~0x7; + if (conf & 0x2) + entry->lvdsconf.use_acpi_for_edid = true; if (conf & 0x4) entry->lvdsconf.use_power_scripts = true; } diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.h b/drivers/gpu/drm/nouveau/nouveau_bios.h index bd33a54f7deb..cc52aec33691 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bios.h +++ b/drivers/gpu/drm/nouveau/nouveau_bios.h @@ -118,6 +118,7 @@ struct dcb_entry { struct { struct sor_conf sor; bool use_straps_for_mode; + bool use_acpi_for_edid; bool use_power_scripts; } lvdsconf; struct { diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c index c2fb15311b96..50704287a8c2 100644 --- a/drivers/gpu/drm/nouveau/nouveau_connector.c +++ b/drivers/gpu/drm/nouveau/nouveau_connector.c @@ -327,12 +327,29 @@ nouveau_connector_detect_lvds(struct drm_connector *connector) if (!nv_encoder) return connector_status_disconnected; + /* Try retrieving EDID via DDC */ if (!dev_priv->vbios.fp_no_ddc) { status = nouveau_connector_detect(connector); if (status == connector_status_connected) goto out; } + /* On some laptops (Sony, i'm looking at you) there appears to + * be no direct way of accessing the panel's EDID. The only + * option available to us appears to be to ask ACPI for help.. + * + * It's important this check's before trying straps, one of the + * said manufacturer's laptops are configured in such a way + * the nouveau decides an entry in the VBIOS FP mode table is + * valid - it's not (rh#613284) + */ + if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) { + if (!nouveau_acpi_edid(dev, connector)) { + status = connector_status_connected; + goto out; + } + } + /* If no EDID found above, and the VBIOS indicates a hardcoded * modeline is avalilable for the panel, set it as the panel's * native mode and exit. diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h index 16856e0354f8..20ca5b82ad6f 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drv.h +++ b/drivers/gpu/drm/nouveau/nouveau_drv.h @@ -827,11 +827,13 @@ void nouveau_register_dsm_handler(void); void nouveau_unregister_dsm_handler(void); int nouveau_acpi_get_bios_chunk(uint8_t *bios, int offset, int len); bool nouveau_acpi_rom_supported(struct pci_dev *pdev); +int nouveau_acpi_edid(struct drm_device *, struct drm_connector *); #else static inline void nouveau_register_dsm_handler(void) {} static inline void nouveau_unregister_dsm_handler(void) {} static inline bool nouveau_acpi_rom_supported(struct pci_dev *pdev) { return false; } static inline int nouveau_acpi_get_bios_chunk(uint8_t *bios, int offset, int len) { return -EINVAL; } +static inline int nouveau_acpi_edid(struct drm_device *, struct drm_connector *) { return -EINVAL; } #endif /* nouveau_backlight.c */ |