disp: msm: dsi: Add support for dynamically switch dsi clock

Add changes to support dynamic switching of dsi clock feature for
phy ver 2.0. This helps to avoid RF interference with DSI clock.

Change-Id: I69958d9224665296cc0f272e39dcdfcefbe293d4
Signed-off-by: Ritesh Kumar <riteshk@codeaurora.org>
Signed-off-by: Lipsa Rout <lrout@codeaurora.org>
Signed-off-by: Satya Rama Aditya Pinapala <psraditya30@codeaurora.org>

msm/dsi/dsi_catalog.c

@@ -192,6 +192,14 @@ static void dsi_catalog_phy_2_0_init(struct dsi_phy_hw *phy)
 		dsi_phy_hw_calculate_timing_params;
 	phy->ops.phy_timing_val = dsi_phy_hw_timing_val_v2_0;
 	phy->ops.clamp_ctrl = dsi_phy_hw_v2_0_clamp_ctrl;
+	phy->ops.dyn_refresh_ops.dyn_refresh_config =
+		dsi_phy_hw_v2_0_dyn_refresh_config;
+	phy->ops.dyn_refresh_ops.dyn_refresh_pipe_delay =
+		dsi_phy_hw_v2_0_dyn_refresh_pipe_delay;
+	phy->ops.dyn_refresh_ops.dyn_refresh_helper =
+		dsi_phy_hw_v2_0_dyn_refresh_helper;
+	phy->ops.dyn_refresh_ops.cache_phy_timings =
+		dsi_phy_hw_v2_0_cache_phy_timings;
 }
 
 /**

msm/dsi/dsi_catalog.h

@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 /*
- * Copyright (c) 2015-2019, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2015-2020, The Linux Foundation. All rights reserved.
  */
 
 #ifndef _DSI_CATALOG_H_
@@ -80,6 +80,13 @@ void dsi_phy_hw_v2_0_idle_off(struct dsi_phy_hw *phy);
 int dsi_phy_hw_timing_val_v2_0(struct dsi_phy_per_lane_cfgs *timing_cfg,
 		u32 *timing_val, u32 size);
 void dsi_phy_hw_v2_0_clamp_ctrl(struct dsi_phy_hw *phy, bool enable);
+void dsi_phy_hw_v2_0_dyn_refresh_helper(struct dsi_phy_hw *phy, u32 offset);
+void dsi_phy_hw_v2_0_dyn_refresh_config(struct dsi_phy_hw *phy,
+		struct dsi_phy_cfg *cfg, bool is_master);
+void dsi_phy_hw_v2_0_dyn_refresh_pipe_delay(struct dsi_phy_hw *phy,
+		struct dsi_dyn_clk_delay *delay);
+int dsi_phy_hw_v2_0_cache_phy_timings(struct dsi_phy_per_lane_cfgs *timings,
+		u32 *dst, u32 size);
 
 /* Definitions for 10nm PHY hardware driver */
 void dsi_phy_hw_v3_0_regulator_enable(struct dsi_phy_hw *phy,

msm/dsi/dsi_phy_hw_v2_0.c

@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /*
- * Copyright (c) 2015-2019, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2015-2020, The Linux Foundation. All rights reserved.
  */
 
 #include <linux/math64.h>
@@ -64,6 +64,83 @@
 #define DSIPHY_PLL_CLKBUFLR_EN                  0x041C
 #define DSIPHY_PLL_PLL_BANDGAP                  0x0508
 
+/* dynamic refresh control registers */
+#define DSI_DYN_REFRESH_CTRL			0x000
+#define DSI_DYN_REFRESH_PIPE_DELAY		0x004
+#define DSI_DYN_REFRESH_PIPE_DELAY2		0x008
+#define DSI_DYN_REFRESH_PLL_DELAY		0x00C
+#define DSI_DYN_REFRESH_STATUS			0x010
+#define DSI_DYN_REFRESH_PLL_CTRL0		0x014
+#define DSI_DYN_REFRESH_PLL_CTRL1		0x018
+#define DSI_DYN_REFRESH_PLL_CTRL2		0x01C
+#define DSI_DYN_REFRESH_PLL_CTRL3		0x020
+#define DSI_DYN_REFRESH_PLL_CTRL4		0x024
+#define DSI_DYN_REFRESH_PLL_CTRL5		0x028
+#define DSI_DYN_REFRESH_PLL_CTRL6		0x02C
+#define DSI_DYN_REFRESH_PLL_CTRL7		0x030
+#define DSI_DYN_REFRESH_PLL_CTRL8		0x034
+#define DSI_DYN_REFRESH_PLL_CTRL9		0x038
+#define DSI_DYN_REFRESH_PLL_CTRL10		0x03C
+#define DSI_DYN_REFRESH_PLL_CTRL11		0x040
+#define DSI_DYN_REFRESH_PLL_CTRL12		0x044
+#define DSI_DYN_REFRESH_PLL_CTRL13		0x048
+#define DSI_DYN_REFRESH_PLL_CTRL14		0x04C
+#define DSI_DYN_REFRESH_PLL_CTRL15		0x050
+#define DSI_DYN_REFRESH_PLL_CTRL16		0x054
+#define DSI_DYN_REFRESH_PLL_CTRL17		0x058
+#define DSI_DYN_REFRESH_PLL_CTRL18		0x05C
+#define DSI_DYN_REFRESH_PLL_CTRL19		0x060
+#define DSI_DYN_REFRESH_PLL_CTRL20		0x064
+#define DSI_DYN_REFRESH_PLL_CTRL21		0x068
+#define DSI_DYN_REFRESH_PLL_CTRL22		0x06C
+#define DSI_DYN_REFRESH_PLL_CTRL23		0x070
+#define DSI_DYN_REFRESH_PLL_CTRL24		0x074
+#define DSI_DYN_REFRESH_PLL_CTRL25		0x078
+#define DSI_DYN_REFRESH_PLL_CTRL26		0x07C
+#define DSI_DYN_REFRESH_PLL_CTRL27		0x080
+#define DSI_DYN_REFRESH_PLL_CTRL28		0x084
+#define DSI_DYN_REFRESH_PLL_CTRL29		0x088
+#define DSI_DYN_REFRESH_PLL_CTRL30		0x08C
+#define DSI_DYN_REFRESH_PLL_CTRL31		0x090
+#define DSI_DYN_REFRESH_PLL_UPPER_ADDR		0x094
+#define DSI_DYN_REFRESH_PLL_UPPER_ADDR2		0x098
+
+#define DSIPHY_DLN0_CFG1			0x0104
+#define DSIPHY_DLN0_TIMING_CTRL_4		0x0118
+#define DSIPHY_DLN0_TIMING_CTRL_5		0x011C
+#define DSIPHY_DLN0_TIMING_CTRL_6		0x0120
+#define DSIPHY_DLN0_TIMING_CTRL_7		0x0124
+#define DSIPHY_DLN0_TIMING_CTRL_8		0x0128
+
+#define DSIPHY_DLN1_CFG1			0x0184
+#define DSIPHY_DLN1_TIMING_CTRL_4		0x0198
+#define DSIPHY_DLN1_TIMING_CTRL_5		0x019C
+#define DSIPHY_DLN1_TIMING_CTRL_6		0x01A0
+#define DSIPHY_DLN1_TIMING_CTRL_7		0x01A4
+#define DSIPHY_DLN1_TIMING_CTRL_8		0x01A8
+
+#define DSIPHY_DLN2_CFG1			0x0204
+#define DSIPHY_DLN2_TIMING_CTRL_4		0x0218
+#define DSIPHY_DLN2_TIMING_CTRL_5		0x021C
+#define DSIPHY_DLN2_TIMING_CTRL_6		0x0220
+#define DSIPHY_DLN2_TIMING_CTRL_7		0x0224
+#define DSIPHY_DLN2_TIMING_CTRL_8		0x0228
+
+#define DSIPHY_DLN3_CFG1			0x0284
+#define DSIPHY_DLN3_TIMING_CTRL_4		0x0298
+#define DSIPHY_DLN3_TIMING_CTRL_5		0x029C
+#define DSIPHY_DLN3_TIMING_CTRL_6		0x02A0
+#define DSIPHY_DLN3_TIMING_CTRL_7		0x02A4
+#define DSIPHY_DLN3_TIMING_CTRL_8		0x02A8
+
+#define DSIPHY_CKLN_CFG1			0x0304
+#define DSIPHY_CKLN_TIMING_CTRL_4		0x0318
+#define DSIPHY_CKLN_TIMING_CTRL_5		0x031C
+#define DSIPHY_CKLN_TIMING_CTRL_6		0x0320
+#define DSIPHY_CKLN_TIMING_CTRL_7		0x0324
+#define DSIPHY_CKLN_TIMING_CTRL_8		0x0328
+
+#define DSIPHY_PLL_RESETSM_CNTRL5		0x043c
 /**
  * regulator_enable() - enable regulators for DSI PHY
  * @phy:      Pointer to DSI PHY hardware object.
@@ -299,3 +376,261 @@ void dsi_phy_hw_v2_0_clamp_ctrl(struct dsi_phy_hw *phy, bool enable)
 		DSI_PHY_DBG(phy, "clamp disabled\n");
 	}
 }
+
+void dsi_phy_hw_v2_0_dyn_refresh_config(struct dsi_phy_hw *phy,
+		struct dsi_phy_cfg *cfg, bool is_master)
+{
+	u32 glbl_tst_cntrl;
+
+	if (is_master) {
+		glbl_tst_cntrl = DSI_R32(phy, DSIPHY_CMN_GLBL_TEST_CTRL);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL0,
+				DSIPHY_CMN_GLBL_TEST_CTRL,
+				DSIPHY_PLL_PLL_BANDGAP,
+				glbl_tst_cntrl | BIT(1), 0x1);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL1,
+				DSIPHY_PLL_RESETSM_CNTRL5,
+				DSIPHY_PLL_PLL_BANDGAP, 0x0D, 0x03);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL2,
+				DSIPHY_PLL_RESETSM_CNTRL5,
+				DSIPHY_CMN_PLL_CNTRL, 0x1D, 0x00);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL3,
+				DSIPHY_CMN_CTRL_1, DSIPHY_DLN0_CFG1, 0x20, 0);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL4,
+				DSIPHY_DLN1_CFG1, DSIPHY_DLN2_CFG1, 0, 0);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL5,
+				DSIPHY_DLN3_CFG1, DSIPHY_CKLN_CFG1, 0, 0);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL6,
+				DSIPHY_DLN0_TIMING_CTRL_4,
+				DSIPHY_DLN1_TIMING_CTRL_4,
+				cfg->timing.lane[0][0], cfg->timing.lane[1][0]);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL7,
+				DSIPHY_DLN2_TIMING_CTRL_4,
+				DSIPHY_DLN3_TIMING_CTRL_4,
+				cfg->timing.lane[2][0], cfg->timing.lane[3][0]);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL8,
+				DSIPHY_CKLN_TIMING_CTRL_4,
+				DSIPHY_DLN0_TIMING_CTRL_5,
+				cfg->timing.lane[4][0], cfg->timing.lane[0][1]);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL9,
+				DSIPHY_DLN1_TIMING_CTRL_5,
+				DSIPHY_DLN2_TIMING_CTRL_5,
+				cfg->timing.lane[1][1], cfg->timing.lane[2][1]);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL10,
+				DSIPHY_DLN3_TIMING_CTRL_5,
+				DSIPHY_CKLN_TIMING_CTRL_5,
+				cfg->timing.lane[3][1], cfg->timing.lane[4][1]);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL11,
+				DSIPHY_DLN0_TIMING_CTRL_6,
+				DSIPHY_DLN1_TIMING_CTRL_6,
+				cfg->timing.lane[0][2], cfg->timing.lane[1][2]);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL12,
+				DSIPHY_DLN2_TIMING_CTRL_6,
+				DSIPHY_DLN3_TIMING_CTRL_6,
+				cfg->timing.lane[2][2], cfg->timing.lane[3][2]);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL13,
+				DSIPHY_CKLN_TIMING_CTRL_6,
+				DSIPHY_DLN0_TIMING_CTRL_7,
+				cfg->timing.lane[4][2], cfg->timing.lane[0][3]);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL14,
+				DSIPHY_DLN1_TIMING_CTRL_7,
+				DSIPHY_DLN2_TIMING_CTRL_7,
+				cfg->timing.lane[1][3], cfg->timing.lane[2][3]);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL15,
+				DSIPHY_DLN3_TIMING_CTRL_7,
+				DSIPHY_CKLN_TIMING_CTRL_7,
+				cfg->timing.lane[3][3], cfg->timing.lane[4][3]);
+				DSI_DYN_REF_REG_W(phy->dyn_pll_base,
+				DSI_DYN_REFRESH_PLL_CTRL16,
+				DSIPHY_DLN0_TIMING_CTRL_8,
+				DSIPHY_DLN1_TIMING_CTRL_8,
+				cfg->timing.lane[0][4], cfg->timing.lane[1][4]);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL17,
+				DSIPHY_DLN2_TIMING_CTRL_8,
+				DSIPHY_DLN3_TIMING_CTRL_8,
+				cfg->timing.lane[2][4], cfg->timing.lane[3][4]);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL18,
+				DSIPHY_CKLN_TIMING_CTRL_8, DSIPHY_CMN_CTRL_1,
+				cfg->timing.lane[4][4], 0);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL30,
+				DSIPHY_CMN_GLBL_TEST_CTRL,
+				DSIPHY_CMN_GLBL_TEST_CTRL,
+				((glbl_tst_cntrl) & (~BIT(2))),
+				((glbl_tst_cntrl) & (~BIT(2))));
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL31,
+				DSIPHY_CMN_GLBL_TEST_CTRL,
+				DSIPHY_CMN_GLBL_TEST_CTRL,
+				((glbl_tst_cntrl) & (~BIT(2))),
+				((glbl_tst_cntrl) & (~BIT(2))));
+	} else {
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL0,
+				DSIPHY_DLN0_CFG1, DSIPHY_DLN1_CFG1, 0, 0);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL1,
+				DSIPHY_DLN2_CFG1, DSIPHY_DLN3_CFG1, 0x0, 0x0);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL2,
+				DSIPHY_CKLN_CFG1, DSIPHY_DLN0_TIMING_CTRL_4,
+				0x0, cfg->timing.lane[0][0]);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL3,
+				DSIPHY_DLN1_TIMING_CTRL_4,
+				DSIPHY_DLN2_TIMING_CTRL_4,
+				cfg->timing.lane[1][0], cfg->timing.lane[2][0]);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL4,
+				DSIPHY_DLN3_TIMING_CTRL_4,
+				DSIPHY_CKLN_TIMING_CTRL_4,
+				cfg->timing.lane[3][0], cfg->timing.lane[4][0]);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL5,
+				DSIPHY_DLN0_TIMING_CTRL_5,
+				DSIPHY_DLN1_TIMING_CTRL_5,
+				cfg->timing.lane[0][1], cfg->timing.lane[1][1]);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL6,
+				DSIPHY_DLN2_TIMING_CTRL_5,
+				DSIPHY_DLN3_TIMING_CTRL_5,
+				cfg->timing.lane[2][1], cfg->timing.lane[3][1]);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL7,
+				DSIPHY_CKLN_TIMING_CTRL_5,
+				DSIPHY_DLN0_TIMING_CTRL_6,
+				cfg->timing.lane[4][1], cfg->timing.lane[0][2]);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL8,
+				DSIPHY_DLN1_TIMING_CTRL_6,
+				DSIPHY_DLN2_TIMING_CTRL_6,
+				cfg->timing.lane[1][2], cfg->timing.lane[2][2]);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL9,
+				DSIPHY_DLN3_TIMING_CTRL_6,
+				DSIPHY_CKLN_TIMING_CTRL_6,
+				cfg->timing.lane[3][2], cfg->timing.lane[4][2]);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL10,
+				DSIPHY_DLN0_TIMING_CTRL_7,
+				DSIPHY_DLN1_TIMING_CTRL_7,
+				cfg->timing.lane[0][3], cfg->timing.lane[1][3]);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL11,
+				DSIPHY_DLN2_TIMING_CTRL_7,
+				DSIPHY_DLN3_TIMING_CTRL_7,
+				cfg->timing.lane[2][3], cfg->timing.lane[3][3]);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL12,
+				DSIPHY_CKLN_TIMING_CTRL_7,
+				DSIPHY_DLN0_TIMING_CTRL_8,
+				cfg->timing.lane[4][3], cfg->timing.lane[0][4]);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL13,
+				DSIPHY_DLN1_TIMING_CTRL_8,
+				DSIPHY_DLN2_TIMING_CTRL_8,
+				cfg->timing.lane[1][4], cfg->timing.lane[2][4]);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL14,
+				DSIPHY_DLN3_TIMING_CTRL_8,
+				DSIPHY_CKLN_TIMING_CTRL_8,
+				cfg->timing.lane[3][4], cfg->timing.lane[4][4]);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL15,
+				0x0110, 0x0110, 0, 0);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL16,
+				0x0110, 0x0110, 0, 0);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL17,
+				0x0110, 0x0110, 0, 0);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL18,
+				0x0110, 0x0110, 0, 0);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL19,
+				0x0110, 0x0110, 0, 0);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL20,
+				0x0110, 0x0110, 0, 0);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL21,
+				0x0110, 0x0110, 0, 0);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL22,
+				0x0110, 0x0110, 0, 0);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL23,
+				0x0110, 0x0110, 0, 0);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL24,
+				0x0110, 0x0110, 0, 0);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL25,
+				0x0110, 0x0110, 0, 0);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL26,
+				0x0110, 0x0110, 0, 0);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL27,
+				0x0110, 0x0110, 0, 0);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL28,
+				0x0110, 0x0110, 0, 0);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL29,
+				0x0110, 0x0110, 0, 0);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL30,
+				0x0110, 0x0110, 0, 0);
+		DSI_DYN_REF_REG_W(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_CTRL31,
+				0x0110, 0x0110, 0, 0);
+		DSI_GEN_W32(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_UPPER_ADDR,
+				0x0);
+		DSI_GEN_W32(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_UPPER_ADDR2,
+				0x0);
+	}
+
+	wmb(); /* make sure phy timings are updated*/
+}
+
+void dsi_phy_hw_v2_0_dyn_refresh_pipe_delay(struct dsi_phy_hw *phy,
+			struct dsi_dyn_clk_delay *delay)
+{
+	if (!delay)
+		return;
+
+	DSI_GEN_W32(phy->dyn_pll_base, DSI_DYN_REFRESH_PIPE_DELAY,
+			delay->pipe_delay);
+	DSI_GEN_W32(phy->dyn_pll_base, DSI_DYN_REFRESH_PIPE_DELAY2,
+			delay->pipe_delay2);
+	DSI_GEN_W32(phy->dyn_pll_base, DSI_DYN_REFRESH_PLL_DELAY,
+			delay->pll_delay);
+}
+
+void dsi_phy_hw_v2_0_dyn_refresh_helper(struct dsi_phy_hw *phy, u32 offset)
+{
+	u32 reg;
+
+	/*
+	 * if no offset is mentioned then this means we want to clear
+	 * the dynamic refresh ctrl register which is the last step
+	 * of dynamic refresh sequence.
+	 */
+	if (!offset) {
+		reg = DSI_GEN_R32(phy->dyn_pll_base, DSI_DYN_REFRESH_CTRL);
+		reg &= ~(BIT(0) | BIT(8));
+		DSI_GEN_W32(phy->dyn_pll_base, DSI_DYN_REFRESH_CTRL, reg);
+		wmb(); /* ensure dynamic fps is cleared */
+		return;
+	}
+
+	if (offset & BIT(DYN_REFRESH_INTF_SEL)) {
+		reg = DSI_GEN_R32(phy->dyn_pll_base, DSI_DYN_REFRESH_CTRL);
+		reg |= BIT(13);
+		DSI_GEN_W32(phy->dyn_pll_base, DSI_DYN_REFRESH_CTRL, reg);
+	}
+
+	if (offset & BIT(DYN_REFRESH_SWI_CTRL)) {
+		reg = DSI_GEN_R32(phy->dyn_pll_base, DSI_DYN_REFRESH_CTRL);
+		reg |= BIT(0);
+		DSI_GEN_W32(phy->dyn_pll_base, DSI_DYN_REFRESH_CTRL, reg);
+	}
+
+	if (offset & BIT(DYN_REFRESH_SW_TRIGGER)) {
+		reg = DSI_GEN_R32(phy->dyn_pll_base, DSI_DYN_REFRESH_CTRL);
+		reg |= BIT(8);
+		DSI_GEN_W32(phy->dyn_pll_base, DSI_DYN_REFRESH_CTRL, reg);
+		wmb(); /* ensure dynamic fps is triggered */
+	}
+}
+
+int dsi_phy_hw_v2_0_cache_phy_timings(struct dsi_phy_per_lane_cfgs *timings,
+		u32 *dst, u32 size)
+{
+	int i, j, count = 0;
+
+	if (!timings || !dst || !size)
+		return -EINVAL;
+
+	if (size != (DSI_LANE_MAX * DSI_MAX_SETTINGS)) {
+		pr_err("size mis-match\n");
+		return -EINVAL;
+	}
+
+	for (i = DSI_LOGICAL_LANE_0; i < DSI_LANE_MAX; i++) {
+		for (j = 0; j < DSI_MAX_SETTINGS; j++) {
+			dst[count] = timings->lane[i][j];
+			count++;
+		}
+	}
+
+	return 0;
+}