drm/i915/dsc: use REG_BIT, REG_GENMASK, and friends for PPS0 and PPS1

Use the register helper macros for PPS0 and PPS1 register contents.

Cc: Suraj Kandpal <suraj.kandpal@intel.com>
Cc: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/0dfebe37a391a5ceb8bfae8e16383f1e5aef815d.1693933849.git.jani.nikula@intel.com

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

@@ -423,10 +423,10 @@ static void intel_dsc_pps_configure(const struct intel_crtc_state *crtc_state)
 	int vdsc_instances_per_pipe = intel_dsc_get_vdsc_per_pipe(crtc_state);
 
 	/* PPS 0 */
-	pps_val = DSC_PPS0_VER_MAJ | vdsc_cfg->dsc_version_minor <<
-		DSC_PPS0_VER_MIN_SHIFT |
-		vdsc_cfg->bits_per_component << DSC_PPS0_BPC_SHIFT |
-		vdsc_cfg->line_buf_depth << DSC_PPS0_LINE_BUF_DEPTH_SHIFT;
+	pps_val = DSC_PPS0_VER_MAJOR(1) |
+		DSC_PPS0_VER_MINOR(vdsc_cfg->dsc_version_minor) |
+		DSC_PPS0_BPC(vdsc_cfg->bits_per_component) |
+		DSC_PPS0_LINE_BUF_DEPTH(vdsc_cfg->line_buf_depth);
 	if (vdsc_cfg->dsc_version_minor == 2) {
 		pps_val |= DSC_PPS0_ALT_ICH_SEL;
 		if (vdsc_cfg->native_420)
@@ -857,9 +857,8 @@ static void intel_dsc_get_pps_config(struct intel_crtc_state *crtc_state)
 	/* PPS 0 */
 	pps_temp = intel_dsc_pps_read_and_verify(crtc_state, 0);
 
-	vdsc_cfg->bits_per_component = (pps_temp & DSC_PPS0_BPC_MASK) >> DSC_PPS0_BPC_SHIFT;
-	vdsc_cfg->line_buf_depth =
-		(pps_temp & DSC_PPS0_LINE_BUF_DEPTH_MASK) >> DSC_PPS0_LINE_BUF_DEPTH_SHIFT;
+	vdsc_cfg->bits_per_component = REG_FIELD_GET(DSC_PPS0_BPC_MASK, pps_temp);
+	vdsc_cfg->line_buf_depth = REG_FIELD_GET(DSC_PPS0_LINE_BUF_DEPTH_MASK, pps_temp);
 	vdsc_cfg->block_pred_enable = pps_temp & DSC_PPS0_BLOCK_PREDICTION;
 	vdsc_cfg->convert_rgb = pps_temp & DSC_PPS0_COLOR_SPACE_CONVERSION;
 	vdsc_cfg->simple_422 = pps_temp & DSC_PPS0_422_ENABLE;
@@ -870,7 +869,7 @@ static void intel_dsc_get_pps_config(struct intel_crtc_state *crtc_state)
 	/* PPS 1 */
 	pps_temp = intel_dsc_pps_read_and_verify(crtc_state, 1);
 
-	vdsc_cfg->bits_per_pixel = pps_temp;
+	vdsc_cfg->bits_per_pixel = REG_FIELD_GET(DSC_PPS1_BPP_MASK, pps_temp);
 
 	if (vdsc_cfg->native_420)
 		vdsc_cfg->bits_per_pixel >>= 1;

drivers/gpu/drm/i915/display/intel_vdsc_regs.h

@@ -73,22 +73,25 @@
 #define  ICL_DSC1_PPS(pipe, pps)		_MMIO(_ICL_DSC1_PPS_0(pipe) + ((pps) * 4))
 
 /* PPS 0 */
-#define   DSC_PPS0_NATIVE_422_ENABLE		BIT(23)
-#define   DSC_PPS0_NATIVE_420_ENABLE		BIT(22)
-#define   DSC_PPS0_ALT_ICH_SEL			(1 << 20)
-#define   DSC_PPS0_VBR_ENABLE			(1 << 19)
-#define   DSC_PPS0_422_ENABLE			(1 << 18)
-#define   DSC_PPS0_COLOR_SPACE_CONVERSION	(1 << 17)
-#define   DSC_PPS0_BLOCK_PREDICTION		(1 << 16)
-#define   DSC_PPS0_LINE_BUF_DEPTH_SHIFT		12
+#define   DSC_PPS0_NATIVE_422_ENABLE		REG_BIT(23)
+#define   DSC_PPS0_NATIVE_420_ENABLE		REG_BIT(22)
+#define   DSC_PPS0_ALT_ICH_SEL			REG_BIT(20)
+#define   DSC_PPS0_VBR_ENABLE			REG_BIT(19)
+#define   DSC_PPS0_422_ENABLE			REG_BIT(18)
+#define   DSC_PPS0_COLOR_SPACE_CONVERSION	REG_BIT(17)
+#define   DSC_PPS0_BLOCK_PREDICTION		REG_BIT(16)
 #define   DSC_PPS0_LINE_BUF_DEPTH_MASK		REG_GENMASK(15, 12)
-#define   DSC_PPS0_BPC_SHIFT			8
+#define   DSC_PPS0_LINE_BUF_DEPTH(depth)	REG_FIELD_PREP(DSC_PPS0_LINE_BUF_DEPTH_MASK, depth)
 #define   DSC_PPS0_BPC_MASK			REG_GENMASK(11, 8)
-#define   DSC_PPS0_VER_MIN_SHIFT		4
-#define   DSC_PPS0_VER_MAJ			(0x1 << 0)
+#define   DSC_PPS0_BPC(bpc)			REG_FIELD_PREP(DSC_PPS0_BPC_MASK, bpc)
+#define   DSC_PPS0_VER_MINOR_MASK		REG_GENMASK(7, 4)
+#define   DSC_PPS0_VER_MINOR(minor)		REG_FIELD_PREP(DSC_PPS0_VER_MINOR_MASK, minor)
+#define   DSC_PPS0_VER_MAJOR_MASK		REG_GENMASK(3, 0)
+#define   DSC_PPS0_VER_MAJOR(major)		REG_FIELD_PREP(DSC_PPS0_VER_MAJOR_MASK, major)
 
 /* PPS 1 */
-#define   DSC_PPS1_BPP(bpp)			((bpp) << 0)
+#define   DSC_PPS1_BPP_MASK			REG_GENMASK(9, 0)
+#define   DSC_PPS1_BPP(bpp)			REG_FIELD_PREP(DSC_PPS1_BPP_MASK, bpp)
 
 /* PPS 2 */
 #define   DSC_PPS2_PIC_WIDTH_MASK		REG_GENMASK(31, 16)