msm:disp:dpu1: setup display datapath for SC7180 target

Add changes to setup display datapath on SC7180 target.

Changes in v1:
 - Add changes to support ctl_active on SC7180 target.
 - While selecting the number of mixers in the topology
   consider the interface width.

Changes in v2:
 - Spawn topology mixer selection into separate patch (Rob Clark).
 - Add co-developed-by tags in the commit msg (Stephen Boyd).

Changes in v3:
 - Fix kernel checkpatch errors in v2.

This patch has dependency on the below series

https://patchwork.kernel.org/patch/11253747/

Co-developed-by: Shubhashree Dhar <dhar@codeaurora.org>
Signed-off-by: Shubhashree Dhar <dhar@codeaurora.org>
Co-developed-by: Raviteja Tamatam <travitej@codeaurora.org>
Signed-off-by: Raviteja Tamatam <travitej@codeaurora.org>
Signed-off-by: Kalyan Thota <kalyan_t@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>

1 files changed, 28 insertions, 0 deletions

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c
index 85b32ec18609..efe9a5719c6b 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c
@@ -56,6 +56,8 @@
 #define   INTF_FRAME_COUNT              0x0AC
 #define   INTF_LINE_COUNT               0x0B0
 
+#define   INTF_MUX                      0x25C
+
 static const struct dpu_intf_cfg *_intf_offset(enum dpu_intf intf,
 		const struct dpu_mdss_cfg *m,
 		void __iomem *addr,
@@ -218,6 +220,30 @@ static void dpu_hw_intf_setup_prg_fetch(
 	DPU_REG_WRITE(c, INTF_CONFIG, fetch_enable);
 }
 
+static void dpu_hw_intf_bind_pingpong_blk(
+		struct dpu_hw_intf *intf,
+		bool enable,
+		const enum dpu_pingpong pp)
+{
+	struct dpu_hw_blk_reg_map *c;
+	u32 mux_cfg;
+
+	if (!intf)
+		return;
+
+	c = &intf->hw;
+
+	mux_cfg = DPU_REG_READ(c, INTF_MUX);
+	mux_cfg &= ~0xf;
+
+	if (enable)
+		mux_cfg |= (pp - PINGPONG_0) & 0x7;
+	else
+		mux_cfg |= 0xf;
+
+	DPU_REG_WRITE(c, INTF_MUX, mux_cfg);
+}
+
 static void dpu_hw_intf_get_status(
 		struct dpu_hw_intf *intf,
 		struct intf_status *s)
@@ -254,6 +280,8 @@ static void _setup_intf_ops(struct dpu_hw_intf_ops *ops,
 	ops->get_status = dpu_hw_intf_get_status;
 	ops->enable_timing = dpu_hw_intf_enable_timing_engine;
 	ops->get_line_count = dpu_hw_intf_get_line_count;
+	if (cap & BIT(DPU_CTL_ACTIVE_CFG))
+		ops->bind_pingpong_blk = dpu_hw_intf_bind_pingpong_blk;
 }
 
 static struct dpu_hw_blk_ops dpu_hw_ops;