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| author | Alex Deucher <alexander.deucher@amd.com> | 2014-09-17 00:57:26 (GMT) |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2014-09-22 21:24:27 (GMT) |
| commit | bc13018b5eba26ca229b33763c9e61fac31a1925 (patch) | |
| tree | ac2c4585da2e7cfe7e31dfff6e7478cb2a6160ff /drivers/gpu/drm/radeon/radeon_drv.c | |
| parent | f55e03b975c230758c8f164347dfa10103f60e2c (diff) | |
| download | linux-bc13018b5eba26ca229b33763c9e61fac31a1925.tar.xz | |
drm/radeon: add a module parameter for backlight control (v2)
Add a module parameter to disable the radeon GPU backlight
controller to override the automatic detection. Some
laptops seems to indicate that they use the integrated
controller, but appear to actually use an external
controller.
bug:
https://bugs.freedesktop.org/show_bug.cgi?id=81382
v2: fix module parameter description
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_drv.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_drv.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c index e8545be7..6864682 100644 --- a/drivers/gpu/drm/radeon/radeon_drv.c +++ b/drivers/gpu/drm/radeon/radeon_drv.c @@ -181,6 +181,7 @@ int radeon_vm_block_size = -1; int radeon_deep_color = 0; int radeon_use_pflipirq = 2; int radeon_bapm = -1; +int radeon_backlight = -1; MODULE_PARM_DESC(no_wb, "Disable AGP writeback for scratch registers"); module_param_named(no_wb, radeon_no_wb, int, 0444); @@ -263,6 +264,9 @@ module_param_named(use_pflipirq, radeon_use_pflipirq, int, 0444); MODULE_PARM_DESC(bapm, "BAPM support (1 = enable, 0 = disable, -1 = auto)"); module_param_named(bapm, radeon_bapm, int, 0444); +MODULE_PARM_DESC(backlight, "backlight support (1 = enable, 0 = disable, -1 = auto)"); +module_param_named(backlight, radeon_backlight, int, 0444); + static struct pci_device_id pciidlist[] = { radeon_PCI_IDS }; |