[PATCH 4/5] drm/i195/display: add cdclk action struct to cdclk_state

[Anusha Srivatsa]

The struct has the action to be performed - squash, crawl
or modeset and the corresponding cdclk which is the desired
cdclk. This is the structure that gets filled during
atomic check once it is determined what the cdclk change looks
like

Signed-off-by: Anusha Srivatsa <anusha.srivatsa at intel.com>
---
 drivers/gpu/drm/i915/display/intel_cdclk.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.h b/drivers/gpu/drm/i915/display/intel_cdclk.h
index c674879a84a5..1edd105a0840 100644
--- a/drivers/gpu/drm/i915/display/intel_cdclk.h
+++ b/drivers/gpu/drm/i915/display/intel_cdclk.h
@@ -11,6 +11,8 @@
 #include "intel_display.h"
 #include "intel_global_state.h"
 
+#define	MAX_CDCLK_ACTIONS	1
+
 struct drm_i915_private;
 struct intel_atomic_state;
 struct intel_crtc_state;
@@ -18,6 +20,18 @@ struct intel_crtc_state;
 struct intel_cdclk_config {
 	unsigned int cdclk, vco, ref, bypass;
 	u8 voltage_level;
+	struct cdclk_step {
+		enum cdclk_sequence action;
+		u32 cdclk;
+	} steps[MAX_CDCLK_ACTIONS];
+};
+
+enum cdclk_sequence {
+	CDCLK_INVALID_ACTION = -1,
+
+	CDCLK_SQUASH_ONLY = 0,
+	CDCLK_CRAWL_ONLY,
+	CDCLK_LEGACY,
 };
 
 struct intel_cdclk_state {
-- 
2.25.1