drm/i915: Use a crtc mask instead of a refcount for dpll functions, v2.
This makes it easier to verify correct dpll setup with only a single crtc.
It is also useful to detect double dpll enable/disable.
Changes since v1:
- Rebase on top of Ander's dpll rework.
- Change debugfs active to a mask.
- Change enabled_crtcs and active_crtcs to unsigned.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1457944075-14123-2-git-send-email-maarten.lankhorst@linux.intel.com
Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>
diff --git a/drivers/gpu/drm/i915/intel_dpll_mgr.h b/drivers/gpu/drm/i915/intel_dpll_mgr.h
index 1d34147..89c5ada 100644
--- a/drivers/gpu/drm/i915/intel_dpll_mgr.h
+++ b/drivers/gpu/drm/i915/intel_dpll_mgr.h
@@ -115,7 +115,7 @@
struct intel_shared_dpll {
struct intel_shared_dpll_config config;
- int active; /* count of number of active CRTCs (i.e. DPMS on) */
+ unsigned active_mask; /* mask of active CRTCs (i.e. DPMS on) */
bool on; /* is the PLL actually active? Disabled during modeset */
const char *name;
/* should match the index in the dev_priv->shared_dplls array */