[PATCH 04/22] drm/fsl-dcu: Use simple encoder

[kbuild test robot]

Hi Thomas,

I love your patch! Yet something to improve:

[auto build test ERROR on next-20200305]
[also build test ERROR on v5.6-rc4]
[cannot apply to rockchip/for-next shawnguo/for-next sunxi/sunxi/for-next tegra/for-next linus/master v5.6-rc4 v5.6-rc3 v5.6-rc2]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Thomas-Zimmermann/drm-Convert-drivers-to-drm_simple_encoder_init/20200306-045931
base:    47466dcf84ee66a973ea7d2fca7e582fe9328932
config: arm-multi_v7_defconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 7.5.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=7.5.0 make.cross ARCH=arm 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp at intel.com>

All errors (new ones prefixed by >>):

   drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c: In function 'fsl_dcu_drm_encoder_create':
>> drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c:33:8: error: implicit declaration of function 'drm_simple_encoder_init'; did you mean 'drm_encoder_init'? [-Werror=implicit-function-declaration]
     ret = drm_simple_encoder_init(fsl_dev->drm, encoder,
           ^~~~~~~~~~~~~~~~~~~~~~~
           drm_encoder_init
   cc1: some warnings being treated as errors

vim +33 drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c

    20	
    21	int fsl_dcu_drm_encoder_create(struct fsl_dcu_drm_device *fsl_dev,
    22				       struct drm_crtc *crtc)
    23	{
    24		struct drm_encoder *encoder = &fsl_dev->encoder;
    25		int ret;
    26	
    27		encoder->possible_crtcs = 1;
    28	
    29		/* Use bypass mode for parallel RGB/LVDS encoder */
    30		if (fsl_dev->tcon)
    31			fsl_tcon_bypass_enable(fsl_dev->tcon);
    32	
  > 33		ret = drm_simple_encoder_init(fsl_dev->drm, encoder,
    34					      DRM_MODE_ENCODER_LVDS);
    35		if (ret < 0)
    36			return ret;
    37	
    38		return 0;
    39	}
    40	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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