[PATCH 1/3] drm: bridge: dw-hdmi: Define and use macros for PHY register addresses

[Laurent Pinchart]

Replace the hardcoded register address numerical values with macros to
clarify the code.

This change has been tested by comparing the assembly code before and
after the change.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas at ideasonboard.com>
---
 drivers/gpu/drm/bridge/dw-hdmi.c | 35 ++++++++++++---------
 drivers/gpu/drm/bridge/dw-hdmi.h | 66 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 86 insertions(+), 15 deletions(-)

diff --git a/drivers/gpu/drm/bridge/dw-hdmi.c b/drivers/gpu/drm/bridge/dw-hdmi.c
index ef4f2f96ed2c..6e605fd910ef 100644
--- a/drivers/gpu/drm/bridge/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/dw-hdmi.c
@@ -997,21 +997,26 @@ static int hdmi_phy_configure(struct dw_hdmi *hdmi, int cscon)
 		    HDMI_PHY_I2CM_SLAVE_ADDR);
 	hdmi_phy_test_clear(hdmi, 0);
 
-	hdmi_phy_i2c_write(hdmi, mpll_config->res[0].cpce, 0x06);
-	hdmi_phy_i2c_write(hdmi, mpll_config->res[0].gmp, 0x15);
-
-	/* CURRCTRL */
-	hdmi_phy_i2c_write(hdmi, curr_ctrl->curr[0], 0x10);
-
-	hdmi_phy_i2c_write(hdmi, 0x0000, 0x13);  /* PLLPHBYCTRL */
-	hdmi_phy_i2c_write(hdmi, 0x0006, 0x17);
-
-	hdmi_phy_i2c_write(hdmi, phy_config->term, 0x19);  /* TXTERM */
-	hdmi_phy_i2c_write(hdmi, phy_config->sym_ctr, 0x09); /* CKSYMTXCTRL */
-	hdmi_phy_i2c_write(hdmi, phy_config->vlev_ctr, 0x0E); /* VLEVCTRL */
-
-	/* REMOVE CLK TERM */
-	hdmi_phy_i2c_write(hdmi, 0x8000, 0x05);  /* CKCALCTRL */
+	hdmi_phy_i2c_write(hdmi, mpll_config->res[0].cpce,
+			   HDMI_3D_TX_PHY_CPCE_CTRL);
+	hdmi_phy_i2c_write(hdmi, mpll_config->res[0].gmp,
+			   HDMI_3D_TX_PHY_GMPCTRL);
+	hdmi_phy_i2c_write(hdmi, curr_ctrl->curr[0],
+			   HDMI_3D_TX_PHY_CURRCTRL);
+
+	hdmi_phy_i2c_write(hdmi, 0, HDMI_3D_TX_PHY_PLLPHBYCTRL);
+	hdmi_phy_i2c_write(hdmi, HDMI_3D_TX_PHY_MSM_CTRL_CKO_SEL_FB_CLK,
+			   HDMI_3D_TX_PHY_MSM_CTRL);
+
+	hdmi_phy_i2c_write(hdmi, phy_config->term, HDMI_3D_TX_PHY_TXTERM);
+	hdmi_phy_i2c_write(hdmi, phy_config->sym_ctr,
+			   HDMI_3D_TX_PHY_CKSYMTXCTRL);
+	hdmi_phy_i2c_write(hdmi, phy_config->vlev_ctr,
+			   HDMI_3D_TX_PHY_VLEVCTRL);
+
+	/* Override and disable clock termination. */
+	hdmi_phy_i2c_write(hdmi, HDMI_3D_TX_PHY_CKCALCTRL_OVERRIDE,
+			   HDMI_3D_TX_PHY_CKCALCTRL);
 
 	dw_hdmi_phy_enable_powerdown(hdmi, false);
 
diff --git a/drivers/gpu/drm/bridge/dw-hdmi.h b/drivers/gpu/drm/bridge/dw-hdmi.h
index a4fd64a203c9..f3c149c88d71 100644
--- a/drivers/gpu/drm/bridge/dw-hdmi.h
+++ b/drivers/gpu/drm/bridge/dw-hdmi.h
@@ -1085,4 +1085,70 @@ enum {
 	HDMI_I2CM_CTLINT_ARB_MASK = 0x4,
 };
 
+/*
+ * HDMI 3D TX PHY registers
+ */
+#define HDMI_3D_TX_PHY_PWRCTRL			0x00
+#define HDMI_3D_TX_PHY_SERDIVCTRL		0x01
+#define HDMI_3D_TX_PHY_SERCKCTRL		0x02
+#define HDMI_3D_TX_PHY_SERCKKILLCTRL		0x03
+#define HDMI_3D_TX_PHY_TXRESCTRL		0x04
+#define HDMI_3D_TX_PHY_CKCALCTRL		0x05
+#define HDMI_3D_TX_PHY_CPCE_CTRL		0x06
+#define HDMI_3D_TX_PHY_TXCLKMEASCTRL		0x07
+#define HDMI_3D_TX_PHY_TXMEASCTRL		0x08
+#define HDMI_3D_TX_PHY_CKSYMTXCTRL		0x09
+#define HDMI_3D_TX_PHY_CMPSEQCTRL		0x0a
+#define HDMI_3D_TX_PHY_CMPPWRCTRL		0x0b
+#define HDMI_3D_TX_PHY_CMPMODECTRL		0x0c
+#define HDMI_3D_TX_PHY_MEASCTRL			0x0d
+#define HDMI_3D_TX_PHY_VLEVCTRL			0x0e
+#define HDMI_3D_TX_PHY_D2ACTRL			0x0f
+#define HDMI_3D_TX_PHY_CURRCTRL			0x10
+#define HDMI_3D_TX_PHY_DRVANACTRL		0x11
+#define HDMI_3D_TX_PHY_PLLMEASCTRL		0x12
+#define HDMI_3D_TX_PHY_PLLPHBYCTRL		0x13
+#define HDMI_3D_TX_PHY_GRP_CTRL			0x14
+#define HDMI_3D_TX_PHY_GMPCTRL			0x15
+#define HDMI_3D_TX_PHY_MPLLMEASCTRL		0x16
+#define HDMI_3D_TX_PHY_MSM_CTRL			0x17
+#define HDMI_3D_TX_PHY_SCRPB_STATUS		0x18
+#define HDMI_3D_TX_PHY_TXTERM			0x19
+#define HDMI_3D_TX_PHY_PTRPT_ENBL		0x1a
+#define HDMI_3D_TX_PHY_PATTERNGEN		0x1b
+#define HDMI_3D_TX_PHY_SDCAP_MODE		0x1c
+#define HDMI_3D_TX_PHY_SCOPEMODE		0x1d
+#define HDMI_3D_TX_PHY_DIGTXMODE		0x1e
+#define HDMI_3D_TX_PHY_STR_STATUS		0x1f
+#define HDMI_3D_TX_PHY_SCOPECNT0		0x20
+#define HDMI_3D_TX_PHY_SCOPECNT1		0x21
+#define HDMI_3D_TX_PHY_SCOPECNT2		0x22
+#define HDMI_3D_TX_PHY_SCOPECNTCLK		0x23
+#define HDMI_3D_TX_PHY_SCOPESAMPLE		0x24
+#define HDMI_3D_TX_PHY_SCOPECNTMSB01		0x25
+#define HDMI_3D_TX_PHY_SCOPECNTMSB2CK		0x26
+
+/* HDMI_3D_TX_PHY_CKCALCTRL values */
+#define HDMI_3D_TX_PHY_CKCALCTRL_OVERRIDE		BIT(15)
+
+/* HDMI_3D_TX_PHY_MSM_CTRL values */
+#define HDMI_3D_TX_PHY_MSM_CTRL_MPLL_PH_SEL_CK		BIT(13)
+#define HDMI_3D_TX_PHY_MSM_CTRL_CKO_SEL_CLK_REF_MPLL	(0 << 1)
+#define HDMI_3D_TX_PHY_MSM_CTRL_CKO_SEL_OFF		(1 << 1)
+#define HDMI_3D_TX_PHY_MSM_CTRL_CKO_SEL_PCLK		(2 << 1)
+#define HDMI_3D_TX_PHY_MSM_CTRL_CKO_SEL_FB_CLK		(3 << 1)
+#define HDMI_3D_TX_PHY_MSM_CTRL_SCOPE_CK_SEL		BIT(0)
+
+/* HDMI_3D_TX_PHY_PTRPT_ENBL values */
+#define HDMI_3D_TX_PHY_PTRPT_ENBL_OVERRIDE		BIT(15)
+#define HDMI_3D_TX_PHY_PTRPT_ENBL_PG_SKIP_BIT2		BIT(8)
+#define HDMI_3D_TX_PHY_PTRPT_ENBL_PG_SKIP_BIT1		BIT(7)
+#define HDMI_3D_TX_PHY_PTRPT_ENBL_PG_SKIP_BIT0		BIT(6)
+#define HDMI_3D_TX_PHY_PTRPT_ENBL_CK_REF_ENB		BIT(5)
+#define HDMI_3D_TX_PHY_PTRPT_ENBL_RCAL_ENB		BIT(4)
+#define HDMI_3D_TX_PHY_PTRPT_ENBL_TX_CLK_ALIGN_ENB	BIT(3)
+#define HDMI_3D_TX_PHY_PTRPT_ENBL_TX_READY		BIT(2)
+#define HDMI_3D_TX_PHY_PTRPT_ENBL_CKO_WORD_ENB		BIT(1)
+#define HDMI_3D_TX_PHY_PTRPT_ENBL_REFCLK_ENB		BIT(0)
+
 #endif /* __DW_HDMI_H__ */
-- 
Regards,

Laurent Pinchart