media: ccs-pll: Remove parallel bus support

The parallel bus PLL calculation has no users. Remove it.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/i2c/ccs-pll.c

@@ -435,11 +435,6 @@ int ccs_pll_calculate(struct device *dev, const struct ccs_pll_limits *lim,
 		op_pll_fr->pll_op_clk_freq_hz = pll->link_freq * 2
 			* (pll->csi2.lanes / lane_op_clock_ratio);
 		break;
-	case CCS_PLL_BUS_TYPE_PARALLEL:
-		op_pll_fr->pll_op_clk_freq_hz = pll->link_freq * pll->bits_per_pixel
-			/ DIV_ROUND_UP(pll->bits_per_pixel,
-				       pll->parallel.bus_width);
-		break;
 	default:
 		return -EINVAL;
 	}

drivers/media/i2c/ccs-pll.h

@@ -13,8 +13,7 @@
 #define CCS_PLL_H
 
 /* CSI-2 or CCP-2 */
-#define CCS_PLL_BUS_TYPE_CSI2				0x00
-#define CCS_PLL_BUS_TYPE_PARALLEL				0x01
+#define CCS_PLL_BUS_TYPE_CSI2					0x00
 
 /* op pix clock is for all lanes in total normally */
 #define CCS_PLL_FLAG_OP_PIX_CLOCK_PER_LANE			(1 << 0)
@@ -37,14 +36,9 @@ struct ccs_pll_branch_bk {
 struct ccs_pll {
 	/* input values */
 	uint8_t bus_type;
-	union {
-		struct {
-			uint8_t lanes;
-		} csi2;
-		struct {
-			uint8_t bus_width;
-		} parallel;
-	};
+	struct {
+		uint8_t lanes;
+	} csi2;
 	unsigned long flags;
 	uint8_t binning_horizontal;
 	uint8_t binning_vertical;