[PATCH 2/4] drm/i915: add FBC_ROTATION to enum no_fbc_reason

[Paulo Zanoni <przanoni@gmail.com>]

From: Paulo Zanoni <paulo.r.zanoni@intel.com>

Because we're currently using FBC_UNSUPPORTED_MODE for two different
cases.

This commit will also allow us to write the next one without hiding
information from the user.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
---
 drivers/gpu/drm/i915/i915_debugfs.c | 3 +++
 drivers/gpu/drm/i915/i915_drv.h     | 1 +
 drivers/gpu/drm/i915/intel_fbc.c    | 2 +-
 3 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 7358f6d..405022b 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1632,6 +1632,9 @@ static int i915_fbc_status(struct seq_file *m, void *unused)
 		case FBC_CHIP_DEFAULT:
 			seq_puts(m, "disabled per chip default");
 			break;
+		case FBC_ROTATION:
+			seq_puts(m, "rotation not supported");
+			break;
 		default:
 			seq_puts(m, "unknown reason");
 		}
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 611fbd8..f9ff452 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -926,6 +926,7 @@ struct i915_fbc {
 		FBC_MULTIPLE_PIPES, /* more than one pipe active */
 		FBC_MODULE_PARAM,
 		FBC_CHIP_DEFAULT, /* disabled by default on this chip */
+		FBC_ROTATION, /* rotation is not supported */
 	} no_fbc_reason;
 };
 
diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c
index 6abb834..43704a4 100644
--- a/drivers/gpu/drm/i915/intel_fbc.c
+++ b/drivers/gpu/drm/i915/intel_fbc.c
@@ -587,7 +587,7 @@ void intel_fbc_update(struct drm_device *dev)
 	}
 	if (INTEL_INFO(dev)->gen <= 4 && !IS_G4X(dev) &&
 	    crtc->primary->state->rotation != BIT(DRM_ROTATE_0)) {
-		if (set_no_fbc_reason(dev_priv, FBC_UNSUPPORTED_MODE))
+		if (set_no_fbc_reason(dev_priv, FBC_ROTATION))
 			DRM_DEBUG_KMS("Rotation unsupported, disabling\n");
 		goto out_disable;
 	}
-- 
2.1.4

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