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SubjectRe: [PATCH v2 1/2] media: imx: imx7-media-csi: add support for imx8mq
Hi Martin,

I love your patch! Perhaps something to improve:

[auto build test WARNING on media-tree/master]
[also build test WARNING on v5.16-rc1 next-20211118]
[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/Martin-Kepplinger/media-imx-imx7-media-csi-add-support-for-imx8mq/20211118-143635
base: git://linuxtv.org/media_tree.git master
config: arm64-randconfig-r003-20211118 (attached as .config)
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 arm64 cross compiling tool for clang build
# apt-get install binutils-aarch64-linux-gnu
# https://github.com/0day-ci/linux/commit/053ee9aefb4758625038e03df68bb468abf0cd4a
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Martin-Kepplinger/media-imx-imx7-media-csi-add-support-for-imx8mq/20211118-143635
git checkout 053ee9aefb4758625038e03df68bb468abf0cd4a
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=arm64

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

All warnings (new ones prefixed by >>):

>> drivers/staging/media/imx/imx7-media-csi.c:1183:15: warning: cast to smaller integer type 'enum imx_csi_model' from 'const void *' [-Wvoid-pointer-to-enum-cast]
csi->model = (enum imx_csi_model)of_device_get_match_data(&pdev->dev);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.


vim +1183 drivers/staging/media/imx/imx7-media-csi.c

1153
1154 static int imx7_csi_probe(struct platform_device *pdev)
1155 {
1156 struct device *dev = &pdev->dev;
1157 struct device_node *node = dev->of_node;
1158 struct imx_media_dev *imxmd;
1159 struct imx7_csi *csi;
1160 int i, ret;
1161
1162 csi = devm_kzalloc(&pdev->dev, sizeof(*csi), GFP_KERNEL);
1163 if (!csi)
1164 return -ENOMEM;
1165
1166 csi->dev = dev;
1167
1168 csi->mclk = devm_clk_get(&pdev->dev, "mclk");
1169 if (IS_ERR(csi->mclk)) {
1170 ret = PTR_ERR(csi->mclk);
1171 dev_err(dev, "Failed to get mclk: %d", ret);
1172 return ret;
1173 }
1174
1175 csi->irq = platform_get_irq(pdev, 0);
1176 if (csi->irq < 0)
1177 return csi->irq;
1178
1179 csi->regbase = devm_platform_ioremap_resource(pdev, 0);
1180 if (IS_ERR(csi->regbase))
1181 return PTR_ERR(csi->regbase);
1182
> 1183 csi->model = (enum imx_csi_model)of_device_get_match_data(&pdev->dev);
1184
1185 spin_lock_init(&csi->irqlock);
1186 mutex_init(&csi->lock);
1187
1188 /* install interrupt handler */
1189 ret = devm_request_irq(dev, csi->irq, imx7_csi_irq_handler, 0, "csi",
1190 (void *)csi);
1191 if (ret < 0) {
1192 dev_err(dev, "Request CSI IRQ failed.\n");
1193 goto destroy_mutex;
1194 }
1195
1196 /* add media device */
1197 imxmd = imx_media_dev_init(dev, NULL);
1198 if (IS_ERR(imxmd)) {
1199 ret = PTR_ERR(imxmd);
1200 goto destroy_mutex;
1201 }
1202 platform_set_drvdata(pdev, &csi->sd);
1203
1204 ret = imx_media_of_add_csi(imxmd, node);
1205 if (ret < 0 && ret != -ENODEV && ret != -EEXIST)
1206 goto cleanup;
1207
1208 ret = imx_media_dev_notifier_register(imxmd, NULL);
1209 if (ret < 0)
1210 goto cleanup;
1211
1212 csi->imxmd = imxmd;
1213 v4l2_subdev_init(&csi->sd, &imx7_csi_subdev_ops);
1214 v4l2_set_subdevdata(&csi->sd, csi);
1215 csi->sd.internal_ops = &imx7_csi_internal_ops;
1216 csi->sd.entity.ops = &imx7_csi_entity_ops;
1217 csi->sd.entity.function = MEDIA_ENT_F_VID_IF_BRIDGE;
1218 csi->sd.dev = &pdev->dev;
1219 csi->sd.owner = THIS_MODULE;
1220 csi->sd.flags = V4L2_SUBDEV_FL_HAS_DEVNODE;
1221 csi->sd.grp_id = IMX_MEDIA_GRP_ID_CSI;
1222 snprintf(csi->sd.name, sizeof(csi->sd.name), "csi");
1223
1224 for (i = 0; i < IMX7_CSI_PADS_NUM; i++)
1225 csi->pad[i].flags = (i == IMX7_CSI_PAD_SINK) ?
1226 MEDIA_PAD_FL_SINK : MEDIA_PAD_FL_SOURCE;
1227
1228 ret = media_entity_pads_init(&csi->sd.entity, IMX7_CSI_PADS_NUM,
1229 csi->pad);
1230 if (ret < 0)
1231 goto cleanup;
1232
1233 ret = imx7_csi_async_register(csi);
1234 if (ret)
1235 goto subdev_notifier_cleanup;
1236
1237 return 0;
1238
1239 subdev_notifier_cleanup:
1240 v4l2_async_nf_unregister(&csi->notifier);
1241 v4l2_async_nf_cleanup(&csi->notifier);
1242
1243 cleanup:
1244 v4l2_async_nf_unregister(&imxmd->notifier);
1245 v4l2_async_nf_cleanup(&imxmd->notifier);
1246 v4l2_device_unregister(&imxmd->v4l2_dev);
1247 media_device_unregister(&imxmd->md);
1248 media_device_cleanup(&imxmd->md);
1249
1250 destroy_mutex:
1251 mutex_destroy(&csi->lock);
1252
1253 return ret;
1254 }
1255

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