drm/i915/lvds: Use REG_BIT() & co.

[ Upstream commit 9dd56e9 ]

Use REG_BIT() & co. for the LVDS port register.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230130180540.8972-4-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Stable-dep-of: 20c2dbf ("drm/i915: Skip some timing checks on BXT/GLK DSI transcoders")
Signed-off-by: Sasha Levin <sashal@kernel.org>

Author: vsyrjala

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

@@ -92,9 +92,9 @@ bool intel_lvds_port_enabled(struct drm_i915_private *dev_priv,
 
 	/* asserts want to know the pipe even if the port is disabled */
 	if (HAS_PCH_CPT(dev_priv))
-		*pipe = (val & LVDS_PIPE_SEL_MASK_CPT) >> LVDS_PIPE_SEL_SHIFT_CPT;
+		*pipe = REG_FIELD_GET(LVDS_PIPE_SEL_MASK_CPT, val);
 	else
-		*pipe = (val & LVDS_PIPE_SEL_MASK) >> LVDS_PIPE_SEL_SHIFT;
+		*pipe = REG_FIELD_GET(LVDS_PIPE_SEL_MASK, val);
 
 	return val & LVDS_PORT_EN;
 }

drivers/gpu/drm/i915/i915_reg.h

@@ -2681,52 +2681,50 @@
  * Enables the LVDS port.  This bit must be set before DPLLs are enabled, as
  * the DPLL semantics change when the LVDS is assigned to that pipe.
  */
-#define   LVDS_PORT_EN			(1 << 31)
+#define   LVDS_PORT_EN			REG_BIT(31)
 /* Selects pipe B for LVDS data.  Must be set on pre-965. */
-#define   LVDS_PIPE_SEL_SHIFT		30
-#define   LVDS_PIPE_SEL_MASK		(1 << 30)
-#define   LVDS_PIPE_SEL(pipe)		((pipe) << 30)
-#define   LVDS_PIPE_SEL_SHIFT_CPT	29
-#define   LVDS_PIPE_SEL_MASK_CPT	(3 << 29)
-#define   LVDS_PIPE_SEL_CPT(pipe)	((pipe) << 29)
+#define   LVDS_PIPE_SEL_MASK		REG_BIT(30)
+#define   LVDS_PIPE_SEL(pipe)		REG_FIELD_PREP(LVDS_PIPE_SEL_MASK, (pipe))
+#define   LVDS_PIPE_SEL_MASK_CPT	REG_GENMASK(30, 29)
+#define   LVDS_PIPE_SEL_CPT(pipe)	REG_FIELD_PREP(LVDS_PIPE_SEL_MASK_CPT, (pipe))
 /* LVDS dithering flag on 965/g4x platform */
-#define   LVDS_ENABLE_DITHER		(1 << 25)
+#define   LVDS_ENABLE_DITHER		REG_BIT(25)
 /* LVDS sync polarity flags. Set to invert (i.e. negative) */
-#define   LVDS_VSYNC_POLARITY		(1 << 21)
-#define   LVDS_HSYNC_POLARITY		(1 << 20)
+#define   LVDS_VSYNC_POLARITY		REG_BIT(21)
+#define   LVDS_HSYNC_POLARITY		REG_BIT(20)
 
 /* Enable border for unscaled (or aspect-scaled) display */
-#define   LVDS_BORDER_ENABLE		(1 << 15)
+#define   LVDS_BORDER_ENABLE		REG_BIT(15)
 /*
  * Enables the A0-A2 data pairs and CLKA, containing 18 bits of color data per
  * pixel.
  */
-#define   LVDS_A0A2_CLKA_POWER_MASK	(3 << 8)
-#define   LVDS_A0A2_CLKA_POWER_DOWN	(0 << 8)
-#define   LVDS_A0A2_CLKA_POWER_UP	(3 << 8)
+#define   LVDS_A0A2_CLKA_POWER_MASK	REG_GENMASK(9, 8)
+#define   LVDS_A0A2_CLKA_POWER_DOWN	REG_FIELD_PREP(LVDS_A0A2_CLKA_POWER_MASK, 0)
+#define   LVDS_A0A2_CLKA_POWER_UP	REG_FIELD_PREP(LVDS_A0A2_CLKA_POWER_MASK, 3)
 /*
  * Controls the A3 data pair, which contains the additional LSBs for 24 bit
  * mode.  Only enabled if LVDS_A0A2_CLKA_POWER_UP also indicates it should be
  * on.
  */
-#define   LVDS_A3_POWER_MASK		(3 << 6)
-#define   LVDS_A3_POWER_DOWN		(0 << 6)
-#define   LVDS_A3_POWER_UP		(3 << 6)
+#define   LVDS_A3_POWER_MASK		REG_GENMASK(7, 6)
+#define   LVDS_A3_POWER_DOWN		REG_FIELD_PREP(LVDS_A3_POWER_MASK, 0)
+#define   LVDS_A3_POWER_UP		REG_FIELD_PREP(LVDS_A3_POWER_MASK, 3)
 /*
  * Controls the CLKB pair.  This should only be set when LVDS_B0B3_POWER_UP
  * is set.
  */
-#define   LVDS_CLKB_POWER_MASK		(3 << 4)
-#define   LVDS_CLKB_POWER_DOWN		(0 << 4)
-#define   LVDS_CLKB_POWER_UP		(3 << 4)
+#define   LVDS_CLKB_POWER_MASK		REG_GENMASK(5, 4)
+#define   LVDS_CLKB_POWER_DOWN		REG_FIELD_PREP(LVDS_CLKB_POWER_MASK, 0)
+#define   LVDS_CLKB_POWER_UP		REG_FIELD_PREP(LVDS_CLKB_POWER_MASK, 3)
 /*
  * Controls the B0-B3 data pairs.  This must be set to match the DPLL p2
  * setting for whether we are in dual-channel mode.  The B3 pair will
  * additionally only be powered up when LVDS_A3_POWER_UP is set.
  */
-#define   LVDS_B0B3_POWER_MASK		(3 << 2)
-#define   LVDS_B0B3_POWER_DOWN		(0 << 2)
-#define   LVDS_B0B3_POWER_UP		(3 << 2)
+#define   LVDS_B0B3_POWER_MASK		REG_GENMASK(3, 2)
+#define   LVDS_B0B3_POWER_DOWN		REG_FIELD_PREP(LVDS_B0B3_POWER_MASK, 0)
+#define   LVDS_B0B3_POWER_UP		REG_FIELD_PREP(LVDS_B0B3_POWER_MASK, 3)
 
 /* Video Data Island Packet control */
 #define VIDEO_DIP_DATA		_MMIO(0x61178)
@@ -6461,7 +6459,7 @@
 #define FDI_PLL_CTL_2           _MMIO(0xfe004)
 
 #define PCH_LVDS	_MMIO(0xe1180)
-#define  LVDS_DETECTED	(1 << 1)
+#define   LVDS_DETECTED	REG_BIT(1)
 
 #define _PCH_DP_B		0xe4100
 #define PCH_DP_B		_MMIO(_PCH_DP_B)