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SubjectRe: [PATCH 1/2] irqchip: imx-intmux: add system PM support
Hi Joakim,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on tip/irq/core]
[also build test ERROR on linux/master linus/master v5.8-rc5 next-20200716]
[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/Joakim-Zhang/irqchip-imx-intmux-add-PM-support/20200716-193311
base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 8fa88a88d573093868565a1afba43b5ae5b3a316
config: c6x-randconfig-r011-20200717 (attached as .config)
compiler: c6x-elf-gcc (GCC) 9.3.0
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
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=c6x

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/irqchip/irq-imx-intmux.c: In function 'imx_intmux_probe':
>> drivers/irqchip/irq-imx-intmux.c:240:7: error: 'struct intmux_data' has no member named 'saved_reg'
240 | data->saved_reg = devm_kzalloc(&pdev->dev,
| ^~
drivers/irqchip/irq-imx-intmux.c:243:12: error: 'struct intmux_data' has no member named 'saved_reg'
243 | if (!data->saved_reg)
| ^~
At top level:
drivers/irqchip/irq-imx-intmux.c:351:32: warning: 'imx_intmux_pm_ops' defined but not used [-Wunused-const-variable=]
351 | static const struct dev_pm_ops imx_intmux_pm_ops = {
| ^~~~~~~~~~~~~~~~~

vim +240 drivers/irqchip/irq-imx-intmux.c

198
199 static int imx_intmux_probe(struct platform_device *pdev)
200 {
201 struct device_node *np = pdev->dev.of_node;
202 struct irq_domain *domain;
203 struct intmux_data *data;
204 int channum;
205 int i, ret;
206
207 channum = platform_irq_count(pdev);
208 if (channum == -EPROBE_DEFER) {
209 return -EPROBE_DEFER;
210 } else if (channum > CHAN_MAX_NUM) {
211 dev_err(&pdev->dev, "supports up to %d multiplex channels\n",
212 CHAN_MAX_NUM);
213 return -EINVAL;
214 }
215
216 data = devm_kzalloc(&pdev->dev, sizeof(*data) +
217 channum * sizeof(data->irqchip_data[0]), GFP_KERNEL);
218 if (!data)
219 return -ENOMEM;
220
221 data->regs = devm_platform_ioremap_resource(pdev, 0);
222 if (IS_ERR(data->regs)) {
223 dev_err(&pdev->dev, "failed to initialize reg\n");
224 return PTR_ERR(data->regs);
225 }
226
227 data->ipg_clk = devm_clk_get(&pdev->dev, "ipg");
228 if (IS_ERR(data->ipg_clk)) {
229 ret = PTR_ERR(data->ipg_clk);
230 if (ret != -EPROBE_DEFER)
231 dev_err(&pdev->dev, "failed to get ipg clk: %d\n", ret);
232 return ret;
233 }
234
235 data->channum = channum;
236 raw_spin_lock_init(&data->lock);
237
238 if (IS_ENABLED(CONFIG_PM)) {
239 /* save CHANIER register */
> 240 data->saved_reg = devm_kzalloc(&pdev->dev,
241 sizeof(unsigned int) * channum,
242 GFP_KERNEL);
243 if (!data->saved_reg)
244 return -ENOMEM;
245 }
246
247 ret = clk_prepare_enable(data->ipg_clk);
248 if (ret) {
249 dev_err(&pdev->dev, "failed to enable ipg clk: %d\n", ret);
250 return ret;
251 }
252
253 for (i = 0; i < channum; i++) {
254 data->irqchip_data[i].chanidx = i;
255
256 data->irqchip_data[i].irq = irq_of_parse_and_map(np, i);
257 if (data->irqchip_data[i].irq <= 0) {
258 ret = -EINVAL;
259 dev_err(&pdev->dev, "failed to get irq\n");
260 goto out;
261 }
262
263 domain = irq_domain_add_linear(np, 32, &imx_intmux_domain_ops,
264 &data->irqchip_data[i]);
265 if (!domain) {
266 ret = -ENOMEM;
267 dev_err(&pdev->dev, "failed to create IRQ domain\n");
268 goto out;
269 }
270 data->irqchip_data[i].domain = domain;
271
272 /* disable all interrupt sources of this channel firstly */
273 writel_relaxed(0, data->regs + CHANIER(i));
274
275 irq_set_chained_handler_and_data(data->irqchip_data[i].irq,
276 imx_intmux_irq_handler,
277 &data->irqchip_data[i]);
278 }
279
280 platform_set_drvdata(pdev, data);
281
282 return 0;
283 out:
284 clk_disable_unprepare(data->ipg_clk);
285 return ret;
286 }
287

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