[PATCH 06/22] drm/hisilicon/kirin: 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: arm64-defconfig (attached as .config)
compiler: clang version 11.0.0 (git://gitmirror/llvm_project a0cd413426479abb207381bdbab862f3dfb3ce7d)
reproduce:
        # FIXME the reproduce steps for clang is not ready yet

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/hisilicon/kirin/dw_drm_dsi.c:713:8: error: implicit declaration of function 'drm_simple_encoder_init' [-Werror,-Wimplicit-function-declaration]
           ret = drm_simple_encoder_init(drm_dev, encoder, DRM_MODE_ENCODER_DSI);
                 ^
   drivers/gpu//drm/hisilicon/kirin/dw_drm_dsi.c:713:8: note: did you mean 'drm_i2c_encoder_init'?
   include/drm/drm_encoder_slave.h:104:5: note: 'drm_i2c_encoder_init' declared here
   int drm_i2c_encoder_init(struct drm_device *dev,
       ^
   1 error generated.

vim +/drm_simple_encoder_init +713 drivers/gpu//drm/hisilicon/kirin/dw_drm_dsi.c

   699	
   700	static int dw_drm_encoder_init(struct device *dev,
   701				       struct drm_device *drm_dev,
   702				       struct drm_encoder *encoder)
   703	{
   704		int ret;
   705		u32 crtc_mask = drm_of_find_possible_crtcs(drm_dev, dev->of_node);
   706	
   707		if (!crtc_mask) {
   708			DRM_ERROR("failed to find crtc mask\n");
   709			return -EINVAL;
   710		}
   711	
   712		encoder->possible_crtcs = crtc_mask;
 > 713		ret = drm_simple_encoder_init(drm_dev, encoder, DRM_MODE_ENCODER_DSI);
   714		if (ret) {
   715			DRM_ERROR("failed to init dsi encoder\n");
   716			return ret;
   717		}
   718	
   719		drm_encoder_helper_add(encoder, &dw_encoder_helper_funcs);
   720	
   721		return 0;
   722	}
   723	

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