diff options
| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-03-03 18:03:47 +0100 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-03-27 11:22:52 +0100 |
| commit | 5bedeb2de2127b3b80b40d977a17fe4fce83fe25 (patch) | |
| tree | 61a3f88b403a9f25a0a540428780a8fdbbbd09a0 | |
| parent | 55bb9992db9b2c65cc3dd11cc75785f80e8d7e66 (diff) | |
drm/i915: Add module param to test the load detect code
This is useful for writing igts to make sure we don't break this,
without being forced to own a one of these dinosaurs.
Suggested-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_params.c | 8 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_crt.c | 6 |
3 files changed, 12 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index a4db7a7db444..6ccdf954b1ca 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -2462,6 +2462,7 @@ struct i915_params { bool enable_hangcheck; bool fastboot; bool prefault_disable; + bool load_detect_test; bool reset; bool disable_display; bool disable_vtd_wa; diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c index f3b8b62cb74d..bb64415a1c3e 100644 --- a/drivers/gpu/drm/i915/i915_params.c +++ b/drivers/gpu/drm/i915/i915_params.c @@ -43,6 +43,7 @@ struct i915_params i915 __read_mostly = { .enable_ips = 1, .fastboot = 0, .prefault_disable = 0, + .load_detect_test = 0, .reset = true, .invert_brightness = 0, .disable_display = 0, @@ -139,11 +140,16 @@ module_param_named(fastboot, i915.fastboot, bool, 0600); MODULE_PARM_DESC(fastboot, "Try to skip unnecessary mode sets at boot time (default: false)"); -module_param_named(prefault_disable, i915.prefault_disable, bool, 0600); +module_param_named_unsafe(prefault_disable, i915.prefault_disable, bool, 0600); MODULE_PARM_DESC(prefault_disable, "Disable page prefaulting for pread/pwrite/reloc (default:false). " "For developers only."); +module_param_named_unsafe(load_detect_test, i915.load_detect_test, bool, 0600); +MODULE_PARM_DESC(load_detect_test, + "Force-enable the VGA load detect code for testing (default:false). " + "For developers only."); + module_param_named(invert_brightness, i915.invert_brightness, int, 0600); MODULE_PARM_DESC(invert_brightness, "Invert backlight brightness " diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c index 573aaff3389a..6095a998bdac 100644 --- a/drivers/gpu/drm/i915/intel_crt.c +++ b/drivers/gpu/drm/i915/intel_crt.c @@ -690,7 +690,7 @@ intel_crt_detect(struct drm_connector *connector, bool force) * broken monitor (without edid) to work behind a broken kvm (that fails * to have the right resistors for HP detection) needs to fix this up. * For now just bail out. */ - if (I915_HAS_HOTPLUG(dev)) { + if (I915_HAS_HOTPLUG(dev) && !i915.load_detect_test) { status = connector_status_disconnected; goto out; } @@ -706,8 +706,10 @@ intel_crt_detect(struct drm_connector *connector, bool force) if (intel_get_load_detect_pipe(connector, NULL, &tmp, &ctx)) { if (intel_crt_detect_ddc(connector)) status = connector_status_connected; - else + else if (INTEL_INFO(dev)->gen < 4) status = intel_crt_load_detect(crt); + else + status = connector_status_unknown; intel_release_load_detect_pipe(connector, &tmp, &ctx); } else status = connector_status_unknown; |