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SubjectRe: [PATCH] drm/omap: switch to drm_of_find_panel_or_bridge
Hi "José,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on drm/drm-next]
[also build test ERROR on v5.17-rc5 next-20220217]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url: https://github.com/0day-ci/linux/commits/Jos-Exp-sito/drm-omap-switch-to-drm_of_find_panel_or_bridge/20220221-035403
base: git://anongit.freedesktop.org/drm/drm drm-next
config: arm-randconfig-r022-20220220 (https://download.01.org/0day-ci/archive/20220221/202202210942.gGqf3SNb-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project d271fc04d5b97b12e6b797c6067d3c96a8d7470e)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install arm cross compiling tool for clang build
# apt-get install binutils-arm-linux-gnueabi
# https://github.com/0day-ci/linux/commit/9a465e2c1dba123efe08cf2f4a5ae11b07be4142
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Jos-Exp-sito/drm-omap-switch-to-drm_of_find_panel_or_bridge/20220221-035403
git checkout 9a465e2c1dba123efe08cf2f4a5ae11b07be4142
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

>> drivers/gpu/drm/omapdrm/dss/output.c:25:8: error: implicit declaration of function 'drm_of_find_panel_or_bridge' [-Werror,-Wimplicit-function-declaration]
ret = drm_of_find_panel_or_bridge(out->dev->of_node, out->of_port, 0,
^
1 error generated.


vim +/drm_of_find_panel_or_bridge +25 drivers/gpu/drm/omapdrm/dss/output.c

19
20 int omapdss_device_init_output(struct omap_dss_device *out,
21 struct drm_bridge *local_bridge)
22 {
23 int ret;
24
> 25 ret = drm_of_find_panel_or_bridge(out->dev->of_node, out->of_port, 0,
26 &out->panel, &out->bridge);
27 if (ret) {
28 if (ret == -ENODEV) {
29 dev_dbg(out->dev, "failed to find video sink\n");
30 return 0;
31 }
32 goto error;
33 }
34
35 if (out->panel) {
36 struct drm_bridge *bridge;
37
38 bridge = drm_panel_bridge_add(out->panel);
39 if (IS_ERR(bridge)) {
40 dev_err(out->dev,
41 "unable to create panel bridge (%ld)\n",
42 PTR_ERR(bridge));
43 ret = PTR_ERR(bridge);
44 goto error;
45 }
46
47 out->bridge = bridge;
48 }
49
50 if (local_bridge) {
51 if (!out->bridge) {
52 ret = -EPROBE_DEFER;
53 goto error;
54 }
55
56 out->next_bridge = out->bridge;
57 out->bridge = local_bridge;
58 }
59
60 if (!out->bridge) {
61 ret = -EPROBE_DEFER;
62 goto error;
63 }
64
65 return 0;
66
67 error:
68 omapdss_device_cleanup_output(out);
69 return ret;
70 }
71

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

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