drm/i915: Move shared dpll struct definitions to separate header file

Move the declarations related to shared dplls from i915_drv.h to their
own header file.

The code that became the shared dpll infrastructre was first introcude
in commit ee7b9f93fd96 ("drm/i915: manage PCH PLLs separately from
pipes"), hence the 2012-2016 copyright years in the new header file.

Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1457451987-17466-6-git-send-email-ander.conselvan.de.oliveira@intel.com

1 files changed, 106 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/intel_dpll_mgr.h b/drivers/gpu/drm/i915/intel_dpll_mgr.h
new file mode 100644
index 000000000000..a62d1baff76f
--- /dev/null
+++ b/drivers/gpu/drm/i915/intel_dpll_mgr.h
@@ -0,0 +1,106 @@
+/*
+ * Copyright © 2012-2016 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ */
+
+#ifndef _INTEL_DPLL_MGR_H_
+#define _INTEL_DPLL_MGR_H_
+
+struct drm_i915_private;
+
+enum intel_dpll_id {
+	DPLL_ID_PRIVATE = -1, /* non-shared dpll in use */
+	/* real shared dpll ids must be >= 0 */
+	DPLL_ID_PCH_PLL_A = 0,
+	DPLL_ID_PCH_PLL_B = 1,
+	/* hsw/bdw */
+	DPLL_ID_WRPLL1 = 0,
+	DPLL_ID_WRPLL2 = 1,
+	DPLL_ID_SPLL = 2,
+
+	/* skl */
+	DPLL_ID_SKL_DPLL1 = 0,
+	DPLL_ID_SKL_DPLL2 = 1,
+	DPLL_ID_SKL_DPLL3 = 2,
+};
+#define I915_NUM_PLLS 3
+
+struct intel_dpll_hw_state {
+	/* i9xx, pch plls */
+	uint32_t dpll;
+	uint32_t dpll_md;
+	uint32_t fp0;
+	uint32_t fp1;
+
+	/* hsw, bdw */
+	uint32_t wrpll;
+	uint32_t spll;
+
+	/* skl */
+	/*
+	 * DPLL_CTRL1 has 6 bits for each each this DPLL. We store those in
+	 * lower part of ctrl1 and they get shifted into position when writing
+	 * the register.  This allows us to easily compare the state to share
+	 * the DPLL.
+	 */
+	uint32_t ctrl1;
+	/* HDMI only, 0 when used for DP */
+	uint32_t cfgcr1, cfgcr2;
+
+	/* bxt */
+	uint32_t ebb0, ebb4, pll0, pll1, pll2, pll3, pll6, pll8, pll9, pll10,
+		 pcsdw12;
+};
+
+struct intel_shared_dpll_config {
+	unsigned crtc_mask; /* mask of CRTCs sharing this PLL */
+	struct intel_dpll_hw_state hw_state;
+};
+
+struct intel_shared_dpll {
+	struct intel_shared_dpll_config config;
+
+	int active; /* count of number 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 */
+	enum intel_dpll_id id;
+	/* The mode_set hook is optional and should be used together with the
+	 * intel_prepare_shared_dpll function. */
+	void (*mode_set)(struct drm_i915_private *dev_priv,
+			 struct intel_shared_dpll *pll);
+	void (*enable)(struct drm_i915_private *dev_priv,
+		       struct intel_shared_dpll *pll);
+	void (*disable)(struct drm_i915_private *dev_priv,
+			struct intel_shared_dpll *pll);
+	bool (*get_hw_state)(struct drm_i915_private *dev_priv,
+			     struct intel_shared_dpll *pll,
+			     struct intel_dpll_hw_state *hw_state);
+};
+
+#define SKL_DPLL0 0
+#define SKL_DPLL1 1
+#define SKL_DPLL2 2
+#define SKL_DPLL3 3
+
+
+#endif /* _INTEL_DPLL_MGR_H_ */