drm/i915/dpio: Clean up the vlv/chv PHY register bits

Use REG_BIT() & co. for the vlv/chv DPIO PHY registers.

Note that DPIO_BIAS_CURRENT_CTL_SHIFT was incorrectly defined
to be 21 wheres 20 is the correct value. It is not used in the
code though so didn't bother splitting to a separate patch.

v2: drop stray tabs (Jani)
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240422083457.23815-14-ville.syrjala@linux.intel.comReviewed-by: Jani Nikula <jani.nikula@intel.com>

drivers/gpu/drm/i915/display/intel_display_power_well.c

@@ -1553,10 +1553,11 @@ static void assert_chv_phy_powergate(struct drm_i915_private *dev_priv, enum dpi
 	}
 
 	if (ch == DPIO_CH0)
-		actual = val >> DPIO_ANYDL_POWERDOWN_SHIFT_CH0;
+		actual = REG_FIELD_GET(DPIO_ANYDL_POWERDOWN_CH0 |
+				       DPIO_ALLDL_POWERDOWN_CH0, val);
 	else
-		actual = val >> DPIO_ANYDL_POWERDOWN_SHIFT_CH1;
-	actual &= DPIO_ALLDL_POWERDOWN | DPIO_ANYDL_POWERDOWN;
+		actual = REG_FIELD_GET(DPIO_ANYDL_POWERDOWN_CH1 |
+				       DPIO_ALLDL_POWERDOWN_CH1, val);
 
 	drm_WARN(&dev_priv->drm, actual != expected,
 		 "Unexpected DPIO lane power down: all %d, any %d. Expected: all %d, any %d. (0x%x = 0x%08x)\n",

drivers/gpu/drm/i915/display/intel_dpio_phy.c

@@ -757,7 +757,7 @@ void chv_set_phy_signal_level(struct intel_encoder *encoder,
 	for (i = 0; i < crtc_state->lane_count; i++) {
 		val = vlv_dpio_read(dev_priv, phy, CHV_TX_DW4(ch, i));
 		val &= ~DPIO_SWING_DEEMPH9P5_MASK;
-		val |= deemph_reg_value << DPIO_SWING_DEEMPH9P5_SHIFT;
+		val |= DPIO_SWING_DEEMPH9P5(deemph_reg_value);
 		vlv_dpio_write(dev_priv, phy, CHV_TX_DW4(ch, i), val);
 	}
 
@@ -766,15 +766,15 @@ void chv_set_phy_signal_level(struct intel_encoder *encoder,
 		val = vlv_dpio_read(dev_priv, phy, CHV_TX_DW2(ch, i));
 
 		val &= ~DPIO_SWING_MARGIN000_MASK;
-		val |= margin_reg_value << DPIO_SWING_MARGIN000_SHIFT;
+		val |= DPIO_SWING_MARGIN000(margin_reg_value);
 
 		/*
 		 * Supposedly this value shouldn't matter when unique transition
 		 * scale is disabled, but in fact it does matter. Let's just
 		 * always program the same value and hope it's OK.
 		 */
-		val &= ~(0xff << DPIO_UNIQ_TRANS_SCALE_SHIFT);
-		val |= 0x9a << DPIO_UNIQ_TRANS_SCALE_SHIFT;
+		val &= ~DPIO_UNIQ_TRANS_SCALE_MASK;
+		val |= DPIO_UNIQ_TRANS_SCALE(0x9a);
 
 		vlv_dpio_write(dev_priv, phy, CHV_TX_DW2(ch, i), val);
 	}
@@ -902,20 +902,20 @@ void chv_phy_pre_pll_enable(struct intel_encoder *encoder,
 
 	/* program clock channel usage */
 	val = vlv_dpio_read(dev_priv, phy, VLV_PCS01_DW8(ch));
-	val |= CHV_PCS_USEDCLKCHANNEL_OVRRIDE;
-	if (pipe != PIPE_B)
-		val &= ~CHV_PCS_USEDCLKCHANNEL;
+	val |= DPIO_PCS_USEDCLKCHANNEL_OVRRIDE;
+	if (pipe == PIPE_B)
+		val |= DPIO_PCS_USEDCLKCHANNEL;
 	else
-		val |= CHV_PCS_USEDCLKCHANNEL;
+		val &= ~DPIO_PCS_USEDCLKCHANNEL;
 	vlv_dpio_write(dev_priv, phy, VLV_PCS01_DW8(ch), val);
 
 	if (crtc_state->lane_count > 2) {
 		val = vlv_dpio_read(dev_priv, phy, VLV_PCS23_DW8(ch));
-		val |= CHV_PCS_USEDCLKCHANNEL_OVRRIDE;
-		if (pipe != PIPE_B)
-			val &= ~CHV_PCS_USEDCLKCHANNEL;
+		val |= DPIO_PCS_USEDCLKCHANNEL_OVRRIDE;
+		if (pipe == PIPE_B)
+			val |= DPIO_PCS_USEDCLKCHANNEL;
 		else
-			val |= CHV_PCS_USEDCLKCHANNEL;
+			val &= ~DPIO_PCS_USEDCLKCHANNEL;
 		vlv_dpio_write(dev_priv, phy, VLV_PCS23_DW8(ch), val);
 	}
 
@@ -925,10 +925,10 @@ void chv_phy_pre_pll_enable(struct intel_encoder *encoder,
 	 * pick the CL based on the port.
 	 */
 	val = vlv_dpio_read(dev_priv, phy, CHV_CMN_DW19(ch));
-	if (pipe != PIPE_B)
-		val &= ~CHV_CMN_USEDCLKCHANNEL;
-	else
+	if (pipe == PIPE_B)
 		val |= CHV_CMN_USEDCLKCHANNEL;
+	else
+		val &= ~CHV_CMN_USEDCLKCHANNEL;
 	vlv_dpio_write(dev_priv, phy, CHV_CMN_DW19(ch), val);
 
 	vlv_dpio_put(dev_priv);
@@ -962,11 +962,10 @@ void chv_phy_pre_encoder_enable(struct intel_encoder *encoder,
 	for (i = 0; i < crtc_state->lane_count; i++) {
 		/* Set the upar bit */
 		if (crtc_state->lane_count == 1)
-			data = 0x0;
+			data = 0;
 		else
-			data = (i == 1) ? 0x0 : 0x1;
-		vlv_dpio_write(dev_priv, phy, CHV_TX_DW14(ch, i),
-				data << DPIO_UPAR_SHIFT);
+			data = (i == 1) ? 0 : DPIO_UPAR;
+		vlv_dpio_write(dev_priv, phy, CHV_TX_DW14(ch, i), data);
 	}
 
 	/* Data lane stagger programming */
@@ -1099,13 +1098,13 @@ void vlv_phy_pre_pll_enable(struct intel_encoder *encoder,
 	vlv_dpio_get(dev_priv);
 
 	vlv_dpio_write(dev_priv, phy, VLV_PCS_DW0_GRP(ch),
-			 DPIO_PCS_TX_LANE2_RESET |
-			 DPIO_PCS_TX_LANE1_RESET);
+		       DPIO_PCS_TX_LANE2_RESET |
+		       DPIO_PCS_TX_LANE1_RESET);
 	vlv_dpio_write(dev_priv, phy, VLV_PCS_DW1_GRP(ch),
-			 DPIO_PCS_CLK_CRI_RXEB_EIOS_EN |
-			 DPIO_PCS_CLK_CRI_RXDIGFILTSG_EN |
-			 (1<<DPIO_PCS_CLK_DATAWIDTH_SHIFT) |
-				 DPIO_PCS_CLK_SOFT_RESET);
+		       DPIO_PCS_CLK_CRI_RXEB_EIOS_EN |
+		       DPIO_PCS_CLK_CRI_RXDIGFILTSG_EN |
+		       DPIO_PCS_CLK_DATAWIDTH_8_10 |
+		       DPIO_PCS_CLK_SOFT_RESET);
 
 	/* Fix up inter-pair skew failure */
 	vlv_dpio_write(dev_priv, phy, VLV_PCS_DW12_GRP(ch), 0x00750f00);
@@ -1130,12 +1129,10 @@ void vlv_phy_pre_encoder_enable(struct intel_encoder *encoder,
 	vlv_dpio_get(dev_priv);
 
 	/* Enable clock channels for this port */
-	val = 0;
-	if (pipe)
-		val |= (1<<21);
-	else
-		val &= ~(1<<21);
-	val |= 0x001000c4;
+	val = DPIO_PCS_USEDCLKCHANNEL_OVRRIDE;
+	if (pipe == PIPE_B)
+		val |= DPIO_PCS_USEDCLKCHANNEL;
+	val |= 0xc4;
 	vlv_dpio_write(dev_priv, phy, VLV_PCS_DW8_GRP(ch), val);
 
 	/* Program lane clock */

drivers/gpu/drm/i915/display/intel_dpll.c

@@ -527,11 +527,11 @@ void vlv_crtc_clock_get(struct intel_crtc_state *crtc_state)
 	tmp = vlv_dpio_read(dev_priv, phy, VLV_PLL_DW3(ch));
 	vlv_dpio_put(dev_priv);
 
-	clock.m1 = (tmp >> DPIO_M1DIV_SHIFT) & 7;
-	clock.m2 = tmp & DPIO_M2DIV_MASK;
-	clock.n = (tmp >> DPIO_N_SHIFT) & 0xf;
-	clock.p1 = (tmp >> DPIO_P1_SHIFT) & 7;
-	clock.p2 = (tmp >> DPIO_P2_SHIFT) & 0x1f;
+	clock.m1 = REG_FIELD_GET(DPIO_M1_DIV_MASK, tmp);
+	clock.m2 = REG_FIELD_GET(DPIO_M2_DIV_MASK, tmp);
+	clock.n = REG_FIELD_GET(DPIO_N_DIV_MASK, tmp);
+	clock.p1 = REG_FIELD_GET(DPIO_P1_DIV_MASK, tmp);
+	clock.p2 = REG_FIELD_GET(DPIO_P2_DIV_MASK, tmp);
 
 	crtc_state->port_clock = vlv_calc_dpll_params(refclk, &clock);
 }
@@ -559,13 +559,13 @@ void chv_crtc_clock_get(struct intel_crtc_state *crtc_state)
 	pll_dw3 = vlv_dpio_read(dev_priv, phy, CHV_PLL_DW3(ch));
 	vlv_dpio_put(dev_priv);
 
-	clock.m1 = (pll_dw1 & 0x7) == DPIO_CHV_M1_DIV_BY_2 ? 2 : 0;
-	clock.m2 = (pll_dw0 & 0xff) << 22;
+	clock.m1 = REG_FIELD_GET(DPIO_CHV_M1_DIV_MASK, pll_dw1) == DPIO_CHV_M1_DIV_BY_2 ? 2 : 0;
+	clock.m2 = REG_FIELD_GET(DPIO_CHV_M2_DIV_MASK, pll_dw0) << 22;
 	if (pll_dw3 & DPIO_CHV_FRAC_DIV_EN)
-		clock.m2 |= pll_dw2 & 0x3fffff;
-	clock.n = (pll_dw1 >> DPIO_CHV_N_DIV_SHIFT) & 0xf;
-	clock.p1 = (cmn_dw13 >> DPIO_CHV_P1_DIV_SHIFT) & 0x7;
-	clock.p2 = (cmn_dw13 >> DPIO_CHV_P2_DIV_SHIFT) & 0x1f;
+		clock.m2 |= REG_FIELD_GET(DPIO_CHV_M2_FRAC_DIV_MASK, pll_dw2);
+	clock.n = REG_FIELD_GET(DPIO_CHV_N_DIV_MASK, pll_dw1);
+	clock.p1 = REG_FIELD_GET(DPIO_CHV_P1_DIV_MASK, cmn_dw13);
+	clock.p2 = REG_FIELD_GET(DPIO_CHV_P2_DIV_MASK, cmn_dw13);
 
 	crtc_state->port_clock = chv_calc_dpll_params(refclk, &clock);
 }
@@ -1926,19 +1926,19 @@ static void vlv_prepare_pll(const struct intel_crtc_state *crtc_state)
 	vlv_dpio_write(dev_priv, phy, VLV_CMN_DW0, 0x610);
 
 	/* Set idtafcrecal before PLL is enabled */
-	tmp = (clock->m1 << DPIO_M1DIV_SHIFT) |
-		(clock->m2 & DPIO_M2DIV_MASK) |
-		(clock->p1 << DPIO_P1_SHIFT) |
-		(clock->p2 << DPIO_P2_SHIFT) |
-		(clock->n << DPIO_N_SHIFT) |
-		(1 << DPIO_K_SHIFT);
+	tmp = DPIO_M1_DIV(clock->m1) |
+		DPIO_M2_DIV(clock->m2) |
+		DPIO_P1_DIV(clock->p1) |
+		DPIO_P2_DIV(clock->p2) |
+		DPIO_N_DIV(clock->n) |
+		DPIO_K_DIV(1);
 
 	/*
 	 * Post divider depends on pixel clock rate, DAC vs digital (and LVDS,
 	 * but we don't support that).
 	 * Note: don't use the DAC post divider as it seems unstable.
 	 */
-	tmp |= (DPIO_POST_DIV_HDMIDP << DPIO_POST_DIV_SHIFT);
+	tmp |= DPIO_S1_DIV(DPIO_S1_DIV_HDMIDP);
 	vlv_dpio_write(dev_priv, phy, VLV_PLL_DW3(ch), tmp);
 
 	tmp |= DPIO_ENABLE_CALIBRATION;
@@ -2034,34 +2034,33 @@ static void chv_prepare_pll(const struct intel_crtc_state *crtc_state)
 	u32 m2_frac;
 
 	m2_frac = clock->m2 & 0x3fffff;
-	loopfilter = 0;
 
 	vlv_dpio_get(dev_priv);
 
 	/* p1 and p2 divider */
 	vlv_dpio_write(dev_priv, phy, CHV_CMN_DW13(ch),
-		       5 << DPIO_CHV_S1_DIV_SHIFT |
-		       clock->p1 << DPIO_CHV_P1_DIV_SHIFT |
-		       clock->p2 << DPIO_CHV_P2_DIV_SHIFT |
-		       1 << DPIO_CHV_K_DIV_SHIFT);
+		       DPIO_CHV_S1_DIV(5) |
+		       DPIO_CHV_P1_DIV(clock->p1) |
+		       DPIO_CHV_P2_DIV(clock->p2) |
+		       DPIO_CHV_K_DIV(1));
 
 	/* Feedback post-divider - m2 */
 	vlv_dpio_write(dev_priv, phy, CHV_PLL_DW0(ch),
-		       clock->m2 >> 22);
+		       DPIO_CHV_M2_DIV(clock->m2 >> 22));
 
 	/* Feedback refclk divider - n and m1 */
 	vlv_dpio_write(dev_priv, phy, CHV_PLL_DW1(ch),
-		       DPIO_CHV_M1_DIV_BY_2 |
-		       1 << DPIO_CHV_N_DIV_SHIFT);
+		       DPIO_CHV_M1_DIV(DPIO_CHV_M1_DIV_BY_2) |
+		       DPIO_CHV_N_DIV(1));
 
 	/* M2 fraction division */
 	vlv_dpio_write(dev_priv, phy, CHV_PLL_DW2(ch),
-		       m2_frac);
+		       DPIO_CHV_M2_FRAC_DIV(m2_frac));
 
 	/* M2 fraction division enable */
 	tmp = vlv_dpio_read(dev_priv, phy, CHV_PLL_DW3(ch));
 	tmp &= ~(DPIO_CHV_FEEDFWD_GAIN_MASK | DPIO_CHV_FRAC_DIV_EN);
-	tmp |= (2 << DPIO_CHV_FEEDFWD_GAIN_SHIFT);
+	tmp |= DPIO_CHV_FEEDFWD_GAIN(2);
 	if (m2_frac)
 		tmp |= DPIO_CHV_FRAC_DIV_EN;
 	vlv_dpio_write(dev_priv, phy, CHV_PLL_DW3(ch), tmp);
@@ -2069,40 +2068,40 @@ static void chv_prepare_pll(const struct intel_crtc_state *crtc_state)
 	/* Program digital lock detect threshold */
 	tmp = vlv_dpio_read(dev_priv, phy, CHV_PLL_DW9(ch));
 	tmp &= ~(DPIO_CHV_INT_LOCK_THRESHOLD_MASK |
-					DPIO_CHV_INT_LOCK_THRESHOLD_SEL_COARSE);
-	tmp |= (0x5 << DPIO_CHV_INT_LOCK_THRESHOLD_SHIFT);
+		      DPIO_CHV_INT_LOCK_THRESHOLD_SEL_COARSE);
+	tmp |= DPIO_CHV_INT_LOCK_THRESHOLD(0x5);
 	if (!m2_frac)
 		tmp |= DPIO_CHV_INT_LOCK_THRESHOLD_SEL_COARSE;
 	vlv_dpio_write(dev_priv, phy, CHV_PLL_DW9(ch), tmp);
 
 	/* Loop filter */
 	if (clock->vco == 5400000) {
-		loopfilter |= (0x3 << DPIO_CHV_PROP_COEFF_SHIFT);
-		loopfilter |= (0x8 << DPIO_CHV_INT_COEFF_SHIFT);
-		loopfilter |= (0x1 << DPIO_CHV_GAIN_CTRL_SHIFT);
+		loopfilter = DPIO_CHV_PROP_COEFF(0x3) |
+			DPIO_CHV_INT_COEFF(0x8) |
+			DPIO_CHV_GAIN_CTRL(0x1);
 		tribuf_calcntr = 0x9;
 	} else if (clock->vco <= 6200000) {
-		loopfilter |= (0x5 << DPIO_CHV_PROP_COEFF_SHIFT);
-		loopfilter |= (0xB << DPIO_CHV_INT_COEFF_SHIFT);
-		loopfilter |= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT);
+		loopfilter = DPIO_CHV_PROP_COEFF(0x5) |
+			DPIO_CHV_INT_COEFF(0xB) |
+			DPIO_CHV_GAIN_CTRL(0x3);
 		tribuf_calcntr = 0x9;
 	} else if (clock->vco <= 6480000) {
-		loopfilter |= (0x4 << DPIO_CHV_PROP_COEFF_SHIFT);
-		loopfilter |= (0x9 << DPIO_CHV_INT_COEFF_SHIFT);
-		loopfilter |= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT);
+		loopfilter = DPIO_CHV_PROP_COEFF(0x4) |
+			DPIO_CHV_INT_COEFF(0x9) |
+			DPIO_CHV_GAIN_CTRL(0x3);
 		tribuf_calcntr = 0x8;
 	} else {
 		/* Not supported. Apply the same limits as in the max case */
-		loopfilter |= (0x4 << DPIO_CHV_PROP_COEFF_SHIFT);
-		loopfilter |= (0x9 << DPIO_CHV_INT_COEFF_SHIFT);
-		loopfilter |= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT);
+		loopfilter = DPIO_CHV_PROP_COEFF(0x4) |
+			DPIO_CHV_INT_COEFF(0x9) |
+			DPIO_CHV_GAIN_CTRL(0x3);
 		tribuf_calcntr = 0;
 	}
 	vlv_dpio_write(dev_priv, phy, CHV_PLL_DW6(ch), loopfilter);
 
 	tmp = vlv_dpio_read(dev_priv, phy, CHV_PLL_DW8(ch));
 	tmp &= ~DPIO_CHV_TDC_TARGET_CNT_MASK;
-	tmp |= (tribuf_calcntr << DPIO_CHV_TDC_TARGET_CNT_SHIFT);
+	tmp |= DPIO_CHV_TDC_TARGET_CNT(tribuf_calcntr);
 	vlv_dpio_write(dev_priv, phy, CHV_PLL_DW8(ch), tmp);
 
 	/* AFC Recal */