Re: [PATCH v2 1/3] reset: imx7: Add plubming to support multiple IP variants

From: kbuild test robot
Date: Wed Nov 28 2018 - 03:12:34 EST


Hi Andrey,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on pza/reset/next]
[also build test WARNING on v4.20-rc4 next-20181127]
[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/Andrey-Smirnov/Reset-controller-support-for-i-MX8MQ/20181128-143936
base: git://git.pengutronix.de/git/pza/linux reset/next
config: xtensa-allyesconfig (attached as .config)
compiler: xtensa-linux-gcc (GCC) 8.1.0
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=8.1.0 make.cross ARCH=xtensa

All warnings (new ones prefixed by >>):

drivers//reset/reset-imx7.c: In function 'imx7_reset_probe':
>> drivers//reset/reset-imx7.c:160:19: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
imx7src->variant = of_device_get_match_data(dev);
^

vim +/const +160 drivers//reset/reset-imx7.c

149
150 static int imx7_reset_probe(struct platform_device *pdev)
151 {
152 struct imx7_src *imx7src;
153 struct device *dev = &pdev->dev;
154 struct regmap_config config = { .name = "src" };
155
156 imx7src = devm_kzalloc(dev, sizeof(*imx7src), GFP_KERNEL);
157 if (!imx7src)
158 return -ENOMEM;
159
> 160 imx7src->variant = of_device_get_match_data(dev);
161 imx7src->regmap = syscon_node_to_regmap(dev->of_node);
162 if (IS_ERR(imx7src->regmap)) {
163 dev_err(dev, "Unable to get imx7-src regmap");
164 return PTR_ERR(imx7src->regmap);
165 }
166 regmap_attach_dev(dev, imx7src->regmap, &config);
167
168 imx7src->rcdev.owner = THIS_MODULE;
169 imx7src->rcdev.nr_resets = imx7src->variant->signals_num;
170 imx7src->rcdev.ops = &imx7_reset_ops;
171 imx7src->rcdev.of_node = dev->of_node;
172
173 return devm_reset_controller_register(dev, &imx7src->rcdev);
174 }
175

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