[PATCH 21/22] drm/writeback: Use simple encoder
kbuild test robot
lkp at intel.com
Fri Mar 6 01:17:30 UTC 2020
Hi Thomas,
I love your patch! Yet something to improve:
[auto build test ERROR on next-20200305]
[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 v5.6-rc4]
[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: mips-randconfig-a001-20200306 (attached as .config)
compiler: mipsel-linux-gcc (GCC) 5.5.0
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=5.5.0 make.cross ARCH=mips
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/drm_writeback.c: In function 'drm_writeback_connector_init':
>> drivers/gpu/drm/drm_writeback.c:191:8: error: implicit declaration of function 'drm_simple_encoder_init' [-Werror=implicit-function-declaration]
ret = drm_simple_encoder_init(dev, &wb_connector->encoder,
^
cc1: some warnings being treated as errors
vim +/drm_simple_encoder_init +191 drivers/gpu/drm/drm_writeback.c
149
150 /**
151 * drm_writeback_connector_init - Initialize a writeback connector and its properties
152 * @dev: DRM device
153 * @wb_connector: Writeback connector to initialize
154 * @con_funcs: Connector funcs vtable
155 * @enc_helper_funcs: Encoder helper funcs vtable to be used by the internal encoder
156 * @formats: Array of supported pixel formats for the writeback engine
157 * @n_formats: Length of the formats array
158 *
159 * This function creates the writeback-connector-specific properties if they
160 * have not been already created, initializes the connector as
161 * type DRM_MODE_CONNECTOR_WRITEBACK, and correctly initializes the property
162 * values. It will also create an internal encoder associated with the
163 * drm_writeback_connector and set it to use the @enc_helper_funcs vtable for
164 * the encoder helper.
165 *
166 * Drivers should always use this function instead of drm_connector_init() to
167 * set up writeback connectors.
168 *
169 * Returns: 0 on success, or a negative error code
170 */
171 int drm_writeback_connector_init(struct drm_device *dev,
172 struct drm_writeback_connector *wb_connector,
173 const struct drm_connector_funcs *con_funcs,
174 const struct drm_encoder_helper_funcs *enc_helper_funcs,
175 const u32 *formats, int n_formats)
176 {
177 struct drm_property_blob *blob;
178 struct drm_connector *connector = &wb_connector->base;
179 struct drm_mode_config *config = &dev->mode_config;
180 int ret = create_writeback_properties(dev);
181
182 if (ret != 0)
183 return ret;
184
185 blob = drm_property_create_blob(dev, n_formats * sizeof(*formats),
186 formats);
187 if (IS_ERR(blob))
188 return PTR_ERR(blob);
189
190 drm_encoder_helper_add(&wb_connector->encoder, enc_helper_funcs);
> 191 ret = drm_simple_encoder_init(dev, &wb_connector->encoder,
192 DRM_MODE_ENCODER_VIRTUAL);
193 if (ret)
194 goto fail;
195
196 connector->interlace_allowed = 0;
197
198 ret = drm_connector_init(dev, connector, con_funcs,
199 DRM_MODE_CONNECTOR_WRITEBACK);
200 if (ret)
201 goto connector_fail;
202
203 ret = drm_connector_attach_encoder(connector,
204 &wb_connector->encoder);
205 if (ret)
206 goto attach_fail;
207
208 INIT_LIST_HEAD(&wb_connector->job_queue);
209 spin_lock_init(&wb_connector->job_lock);
210
211 wb_connector->fence_context = dma_fence_context_alloc(1);
212 spin_lock_init(&wb_connector->fence_lock);
213 snprintf(wb_connector->timeline_name,
214 sizeof(wb_connector->timeline_name),
215 "CONNECTOR:%d-%s", connector->base.id, connector->name);
216
217 drm_object_attach_property(&connector->base,
218 config->writeback_out_fence_ptr_property, 0);
219
220 drm_object_attach_property(&connector->base,
221 config->writeback_fb_id_property, 0);
222
223 drm_object_attach_property(&connector->base,
224 config->writeback_pixel_formats_property,
225 blob->base.id);
226 wb_connector->pixel_formats_blob_ptr = blob;
227
228 return 0;
229
230 attach_fail:
231 drm_connector_cleanup(connector);
232 connector_fail:
233 drm_encoder_cleanup(&wb_connector->encoder);
234 fail:
235 drm_property_blob_put(blob);
236 return ret;
237 }
238 EXPORT_SYMBOL(drm_writeback_connector_init);
239
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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