Hi Maciej, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on linuxtv-media/master] [also build test WARNING on v4.16-rc2 next-20180219] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Maciej-Purski/Use-clk-bulk-API-in-exynos5433-drivers/20180220-054431 base: git://linuxtv.org/media_tree.git master config: sparc64-allmodconfig (attached as .config) compiler: sparc64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0 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 make.cross ARCH=sparc64 All warnings (new ones prefixed by >>): drivers/media/platform/exynos-gsc/gsc-core.c: In function 'gsc_probe': >> drivers/media/platform/exynos-gsc/gsc-core.c:1190:8: warning: passing argument 3 of 'devm_clk_bulk_alloc' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] drv_data->clk_names); ^~~~~~~~ In file included from drivers/media/platform/exynos-gsc/gsc-core.c:25:0: include/linux/clk.h:654:37: note: expected 'const char **' but argument is of type 'const char * const*' static inline struct clk_bulk_data *devm_clk_bulk_alloc(struct device *dev, ^~~~~~~~~~~~~~~~~~~ vim +1190 drivers/media/platform/exynos-gsc/gsc-core.c 1144 1145 static int gsc_probe(struct platform_device *pdev) 1146 { 1147 struct gsc_dev *gsc; 1148 struct resource *res; 1149 struct device *dev = &pdev->dev; 1150 const struct gsc_driverdata *drv_data = of_device_get_match_data(dev); 1151 int ret; 1152 1153 gsc = devm_kzalloc(dev, sizeof(struct gsc_dev), GFP_KERNEL); 1154 if (!gsc) 1155 return -ENOMEM; 1156 1157 ret = of_alias_get_id(pdev->dev.of_node, "gsc"); 1158 if (ret < 0) 1159 return ret; 1160 1161 if (drv_data == &gsc_v_100_drvdata) 1162 dev_info(dev, "compatible 'exynos5-gsc' is deprecated\n"); 1163 1164 gsc->id = ret; 1165 if (gsc->id >= drv_data->num_entities) { 1166 dev_err(dev, "Invalid platform device id: %d\n", gsc->id); 1167 return -EINVAL; 1168 } 1169 1170 gsc->num_clocks = drv_data->num_clocks; 1171 gsc->variant = drv_data->variant[gsc->id]; 1172 gsc->pdev = pdev; 1173 1174 init_waitqueue_head(&gsc->irq_queue); 1175 spin_lock_init(&gsc->slock); 1176 mutex_init(&gsc->lock); 1177 1178 res = platform_get_resource(pdev, IORESOURCE_MEM, 0); 1179 gsc->regs = devm_ioremap_resource(dev, res); 1180 if (IS_ERR(gsc->regs)) 1181 return PTR_ERR(gsc->regs); 1182 1183 res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); 1184 if (!res) { 1185 dev_err(dev, "failed to get IRQ resource\n"); 1186 return -ENXIO; 1187 } 1188 1189 gsc->clocks = devm_clk_bulk_alloc(dev, gsc->num_clocks, > 1190 drv_data->clk_names); 1191 if (IS_ERR(gsc->clocks)) 1192 return PTR_ERR(gsc->clocks); 1193 1194 ret = devm_clk_bulk_get(dev, gsc->num_clocks, 1195 gsc->clocks); 1196 if (ret) 1197 return ret; 1198 1199 ret = clk_bulk_prepare_enable(gsc->num_clocks, gsc->clocks); 1200 if (ret) 1201 return ret; 1202 1203 ret = devm_request_irq(dev, res->start, gsc_irq_handler, 1204 0, pdev->name, gsc); 1205 if (ret) { 1206 dev_err(dev, "failed to install irq (%d)\n", ret); 1207 goto err_clk; 1208 } 1209 1210 ret = v4l2_device_register(dev, &gsc->v4l2_dev); 1211 if (ret) 1212 goto err_clk; 1213 1214 ret = gsc_register_m2m_device(gsc); 1215 if (ret) 1216 goto err_v4l2; 1217 1218 platform_set_drvdata(pdev, gsc); 1219 1220 gsc_hw_set_sw_reset(gsc); 1221 gsc_wait_reset(gsc); 1222 1223 vb2_dma_contig_set_max_seg_size(dev, DMA_BIT_MASK(32)); 1224 1225 dev_dbg(dev, "gsc-%d registered successfully\n", gsc->id); 1226 1227 pm_runtime_set_active(dev); 1228 pm_runtime_enable(dev); 1229 1230 return 0; 1231 1232 err_v4l2: 1233 v4l2_device_unregister(&gsc->v4l2_dev); 1234 err_clk: 1235 clk_bulk_disable_unprepare(gsc->num_clocks, gsc->clocks); 1236 1237 return ret; 1238 } 1239 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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