2:15 p.m.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git queue-5.4
head: d2c5af89e80c5b71f1da59879464a930947306a2
commit: e2bf810d1ab3ed29b696968b2b4cceb58f2f5bad [92/132] drm/panel: add panel driver for
Elida KD35T133 panels
config: i386-randconfig-s001-20210318 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.3-277-gc089cd2d-dirty
#
https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git/c...
git remote add sashal-linux-stable
https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git
git fetch --no-tags sashal-linux-stable queue-5.4
git checkout e2bf810d1ab3ed29b696968b2b4cceb58f2f5bad
# save the attached .config to linux build tree
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
sparse warnings: (new ones prefixed by >>)
> drivers/gpu/drm/panel/panel-elida-kd35t133.c:233:27: sparse:
sparse: incorrect type in initializer (different argument counts) @@ expected int (
*get_modes )( ... ) @@ got int ( * )( ... ) @@
drivers/gpu/drm/panel/panel-elida-kd35t133.c:233:27: sparse: expected int ( *get_modes
)( ... )
drivers/gpu/drm/panel/panel-elida-kd35t133.c:233:27: sparse: got int ( * )( ... )
> drivers/gpu/drm/panel/panel-elida-kd35t133.c:281:23: sparse:
sparse: too many arguments for function drm_panel_init
drivers/gpu/drm/panel/panel-elida-kd35t133.c:284:15: sparse: sparse: undefined identifier
'drm_panel_of_backlight'
vim +233 drivers/gpu/drm/panel/panel-elida-kd35t133.c
229
230 static const struct drm_panel_funcs kd35t133_funcs = {
231 .unprepare = kd35t133_unprepare,
232 .prepare = kd35t133_prepare,
233 .get_modes = kd35t133_get_modes,
234 };
235
236 static int kd35t133_probe(struct mipi_dsi_device *dsi)
237 {
238 struct device *dev = &dsi->dev;
239 struct kd35t133 *ctx;
240 int ret;
241
242 ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
243 if (!ctx)
244 return -ENOMEM;
245
246 ctx->reset_gpio = devm_gpiod_get_optional(dev, "reset",
GPIOD_OUT_LOW);
247 if (IS_ERR(ctx->reset_gpio)) {
248 DRM_DEV_ERROR(dev, "cannot get reset gpio\n");
249 return PTR_ERR(ctx->reset_gpio);
250 }
251
252 ctx->vdd = devm_regulator_get(dev, "vdd");
253 if (IS_ERR(ctx->vdd)) {
254 ret = PTR_ERR(ctx->vdd);
255 if (ret != -EPROBE_DEFER)
256 DRM_DEV_ERROR(dev,
257 "Failed to request vdd regulator: %d\n",
258 ret);
259 return ret;
260 }
261
262 ctx->iovcc = devm_regulator_get(dev, "iovcc");
263 if (IS_ERR(ctx->iovcc)) {
264 ret = PTR_ERR(ctx->iovcc);
265 if (ret != -EPROBE_DEFER)
266 DRM_DEV_ERROR(dev,
267 "Failed to request iovcc regulator: %d\n",
268 ret);
269 return ret;
270 }
271
272 mipi_dsi_set_drvdata(dsi, ctx);
273
274 ctx->dev = dev;
275
276 dsi->lanes = 1;
277 dsi->format = MIPI_DSI_FMT_RGB888;
278 dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
279 MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_EOT_PACKET;
280
281 drm_panel_init(&ctx->panel, &dsi->dev,
&kd35t133_funcs,
282 DRM_MODE_CONNECTOR_DSI);
283
284 ret = drm_panel_of_backlight(&ctx->panel);
285 if (ret)
286 return ret;
287
288 drm_panel_add(&ctx->panel);
289
290 ret = mipi_dsi_attach(dsi);
291 if (ret < 0) {
292 DRM_DEV_ERROR(dev, "mipi_dsi_attach failed: %d\n", ret);
293 drm_panel_remove(&ctx->panel);
294 return ret;
295 }
296
297 return 0;
298 }
299
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org