[linux-next:master 7437/7719] drivers/gpu/drm/rockchip/rockchip_vop2_reg.c:833:28: error: implicit declaration of function 'FIELD_PREP'

[kernel test robot <lkp@intel.com>]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   cd3215bbcb9d4321def93fea6cfad4d5b42b9d1d
commit: 328e6885996ca2c6eb8b07d3c9bb1439fdcb088f [7437/7719] drm/rockchip: vop2: Add platform specific callback
config: alpha-allyesconfig (https://download.01.org/0day-ci/archive/20250304/202503040135.fgoyWdLB-lkp@intel.com/config)
compiler: alpha-linux-gcc (GCC) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250304/202503040135.fgoyWdLB-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202503040135.fgoyWdLB-lkp@intel.com/

All errors (new ones prefixed by >>):

   drivers/gpu/drm/rockchip/rockchip_vop2_reg.c: In function 'rk3568_set_intf_mux':
>> drivers/gpu/drm/rockchip/rockchip_vop2_reg.c:833:28: error: implicit declaration of function 'FIELD_PREP' [-Wimplicit-function-declaration]
     833 |                            FIELD_PREP(RK3568_SYS_DSP_INFACE_EN_RGB_MUX, vp->id);
         |                            ^~~~~~~~~~


vim +/FIELD_PREP +833 drivers/gpu/drm/rockchip/rockchip_vop2_reg.c

   819	
   820	static unsigned long rk3568_set_intf_mux(struct vop2_video_port *vp, int id, u32 polflags)
   821	{
   822		struct vop2 *vop2 = vp->vop2;
   823		struct drm_crtc *crtc = &vp->crtc;
   824		u32 die, dip;
   825	
   826		die = vop2_readl(vop2, RK3568_DSP_IF_EN);
   827		dip = vop2_readl(vop2, RK3568_DSP_IF_POL);
   828	
   829		switch (id) {
   830		case ROCKCHIP_VOP2_EP_RGB0:
   831			die &= ~RK3568_SYS_DSP_INFACE_EN_RGB_MUX;
   832			die |= RK3568_SYS_DSP_INFACE_EN_RGB |
 > 833				   FIELD_PREP(RK3568_SYS_DSP_INFACE_EN_RGB_MUX, vp->id);
   834			dip &= ~RK3568_DSP_IF_POL__RGB_LVDS_PIN_POL;
   835			dip |= FIELD_PREP(RK3568_DSP_IF_POL__RGB_LVDS_PIN_POL, polflags);
   836			if (polflags & POLFLAG_DCLK_INV)
   837				regmap_write(vop2->sys_grf, RK3568_GRF_VO_CON1, BIT(3 + 16) | BIT(3));
   838			else
   839				regmap_write(vop2->sys_grf, RK3568_GRF_VO_CON1, BIT(3 + 16));
   840			break;
   841		case ROCKCHIP_VOP2_EP_HDMI0:
   842			die &= ~RK3568_SYS_DSP_INFACE_EN_HDMI_MUX;
   843			die |= RK3568_SYS_DSP_INFACE_EN_HDMI |
   844				   FIELD_PREP(RK3568_SYS_DSP_INFACE_EN_HDMI_MUX, vp->id);
   845			dip &= ~RK3568_DSP_IF_POL__HDMI_PIN_POL;
   846			dip |= FIELD_PREP(RK3568_DSP_IF_POL__HDMI_PIN_POL, polflags);
   847			break;
   848		case ROCKCHIP_VOP2_EP_EDP0:
   849			die &= ~RK3568_SYS_DSP_INFACE_EN_EDP_MUX;
   850			die |= RK3568_SYS_DSP_INFACE_EN_EDP |
   851				   FIELD_PREP(RK3568_SYS_DSP_INFACE_EN_EDP_MUX, vp->id);
   852			dip &= ~RK3568_DSP_IF_POL__EDP_PIN_POL;
   853			dip |= FIELD_PREP(RK3568_DSP_IF_POL__EDP_PIN_POL, polflags);
   854			break;
   855		case ROCKCHIP_VOP2_EP_MIPI0:
   856			die &= ~RK3568_SYS_DSP_INFACE_EN_MIPI0_MUX;
   857			die |= RK3568_SYS_DSP_INFACE_EN_MIPI0 |
   858				   FIELD_PREP(RK3568_SYS_DSP_INFACE_EN_MIPI0_MUX, vp->id);
   859			dip &= ~RK3568_DSP_IF_POL__MIPI_PIN_POL;
   860			dip |= FIELD_PREP(RK3568_DSP_IF_POL__MIPI_PIN_POL, polflags);
   861			break;
   862		case ROCKCHIP_VOP2_EP_MIPI1:
   863			die &= ~RK3568_SYS_DSP_INFACE_EN_MIPI1_MUX;
   864			die |= RK3568_SYS_DSP_INFACE_EN_MIPI1 |
   865				   FIELD_PREP(RK3568_SYS_DSP_INFACE_EN_MIPI1_MUX, vp->id);
   866			dip &= ~RK3568_DSP_IF_POL__MIPI_PIN_POL;
   867			dip |= FIELD_PREP(RK3568_DSP_IF_POL__MIPI_PIN_POL, polflags);
   868			break;
   869		case ROCKCHIP_VOP2_EP_LVDS0:
   870			die &= ~RK3568_SYS_DSP_INFACE_EN_LVDS0_MUX;
   871			die |= RK3568_SYS_DSP_INFACE_EN_LVDS0 |
   872				   FIELD_PREP(RK3568_SYS_DSP_INFACE_EN_LVDS0_MUX, vp->id);
   873			dip &= ~RK3568_DSP_IF_POL__RGB_LVDS_PIN_POL;
   874			dip |= FIELD_PREP(RK3568_DSP_IF_POL__RGB_LVDS_PIN_POL, polflags);
   875			break;
   876		case ROCKCHIP_VOP2_EP_LVDS1:
   877			die &= ~RK3568_SYS_DSP_INFACE_EN_LVDS1_MUX;
   878			die |= RK3568_SYS_DSP_INFACE_EN_LVDS1 |
   879				   FIELD_PREP(RK3568_SYS_DSP_INFACE_EN_LVDS1_MUX, vp->id);
   880			dip &= ~RK3568_DSP_IF_POL__RGB_LVDS_PIN_POL;
   881			dip |= FIELD_PREP(RK3568_DSP_IF_POL__RGB_LVDS_PIN_POL, polflags);
   882			break;
   883		default:
   884			drm_err(vop2->drm, "Invalid interface id %d on vp%d\n", id, vp->id);
   885			return 0;
   886		}
   887	
   888		dip |= RK3568_DSP_IF_POL__CFG_DONE_IMD;
   889	
   890		vop2_writel(vop2, RK3568_DSP_IF_EN, die);
   891		vop2_writel(vop2, RK3568_DSP_IF_POL, dip);
   892	
   893		return crtc->state->adjusted_mode.crtc_clock  * 1000LL;
   894	}
   895	

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