drm/rockchip: vop2: add polarity flags to RGB output

Use h/v-sync and pixel clock polarity flags for RGB output. For all other
outputs this is already implemented.
Signed-off-by: Gerald Loacker <gerald.loacker@wolfvision.net>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230302123949.957998-1-gerald.loacker@wolfvision.net

drivers/gpu/drm/rockchip/rockchip_drm_vop2.c

@@ -1438,6 +1438,8 @@ static void rk3568_set_intf_mux(struct vop2_video_port *vp, int id,
 		die &= ~RK3568_SYS_DSP_INFACE_EN_RGB_MUX;
 		die |= RK3568_SYS_DSP_INFACE_EN_RGB |
 			   FIELD_PREP(RK3568_SYS_DSP_INFACE_EN_RGB_MUX, vp->id);
+		dip &= ~RK3568_DSP_IF_POL__RGB_LVDS_PIN_POL;
+		dip |= FIELD_PREP(RK3568_DSP_IF_POL__RGB_LVDS_PIN_POL, polflags);
 		if (polflags & POLFLAG_DCLK_INV)
 			regmap_write(vop2->grf, RK3568_GRF_VO_CON1, BIT(3 + 16) | BIT(3));
 		else