drm/msm/dpu: replace BIT(x) with correspond marco define string

To improve code readability, this patch replace BIT(x) with
correspond register bit define string
Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Patchwork: https://patchwork.freedesktop.org/patch/476280/
Link: https://lore.kernel.org/r/1645824192-29670-3-git-send-email-quic_khsieh@quicinc.comSigned-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c

@@ -60,6 +60,12 @@
 
 #define   INTF_MUX                      0x25C
 
+#define INTF_CFG_ACTIVE_H_EN	BIT(29)
+#define INTF_CFG_ACTIVE_V_EN	BIT(30)
+
+#define INTF_CFG2_DATABUS_WIDEN	BIT(0)
+#define INTF_CFG2_DATA_HCTL_EN	BIT(4)
+
 static const struct dpu_intf_cfg *_intf_offset(enum dpu_intf intf,
 		const struct dpu_mdss_cfg *m,
 		void __iomem *addr,
@@ -130,13 +136,13 @@ static void dpu_hw_intf_setup_timing_engine(struct dpu_hw_intf *ctx,
 
 	if (active_h_end) {
 		active_hctl = (active_h_end << 16) | active_h_start;
-		intf_cfg |= BIT(29);	/* ACTIVE_H_ENABLE */
+		intf_cfg |= INTF_CFG_ACTIVE_H_EN;
 	} else {
 		active_hctl = 0;
 	}
 
 	if (active_v_end)
-		intf_cfg |= BIT(30); /* ACTIVE_V_ENABLE */
+		intf_cfg |= INTF_CFG_ACTIVE_V_EN;
 
 	hsync_ctl = (hsync_period << 16) | p->hsync_pulse_width;
 	display_hctl = (hsync_end_x << 16) | hsync_start_x;
@@ -182,7 +188,7 @@ static void dpu_hw_intf_setup_timing_engine(struct dpu_hw_intf *ctx,
 				(0x21 << 8));
 
 	if (ctx->cap->features & BIT(DPU_DATA_HCTL_EN)) {
-		intf_cfg2 |= BIT(4);
+		intf_cfg2 |= INTF_CFG2_DATA_HCTL_EN;
 		display_data_hctl = display_hctl;
 		DPU_REG_WRITE(c, INTF_CONFIG2, intf_cfg2);
 		DPU_REG_WRITE(c, INTF_DISPLAY_DATA_HCTL, display_data_hctl);