Hi Pierre-Yves, I love your patch! Yet something to improve: [auto build test ERROR on wsa/i2c/for-next] [also build test ERROR on v4.20-rc2 next-20181116] [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/Pierre-Yves-MORDRET/i2c-i2c-stm32f7-add-PM-Runtime-support/20181118-230534 base: https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git i2c/for-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 errors (new ones prefixed by >>): drivers/i2c/busses/i2c-stm32f7.c: In function 'stm32f7_i2c_probe': >> drivers/i2c/busses/i2c-stm32f7.c:1913:7: error: 'STM32F7_AUTOSUSPEND_DELAY' undeclared (first use in this function); did you mean 'RPM_REQ_AUTOSUSPEND'? STM32F7_AUTOSUSPEND_DELAY); ^~~~~~~~~~~~~~~~~~~~~~~~~ RPM_REQ_AUTOSUSPEND drivers/i2c/busses/i2c-stm32f7.c:1913:7: note: each undeclared identifier is reported only once for each function it appears in vim +1913 drivers/i2c/busses/i2c-stm32f7.c 1782 1783 static int stm32f7_i2c_probe(struct platform_device *pdev) 1784 { 1785 struct device_node *np = pdev->dev.of_node; 1786 struct stm32f7_i2c_dev *i2c_dev; 1787 const struct stm32f7_i2c_setup *setup; 1788 struct resource *res; 1789 u32 irq_error, irq_event, clk_rate, rise_time, fall_time; 1790 struct i2c_adapter *adap; 1791 struct reset_control *rst; 1792 dma_addr_t phy_addr; 1793 int ret; 1794 1795 i2c_dev = devm_kzalloc(&pdev->dev, sizeof(*i2c_dev), GFP_KERNEL); 1796 if (!i2c_dev) 1797 return -ENOMEM; 1798 1799 res = platform_get_resource(pdev, IORESOURCE_MEM, 0); 1800 i2c_dev->base = devm_ioremap_resource(&pdev->dev, res); 1801 if (IS_ERR(i2c_dev->base)) 1802 return PTR_ERR(i2c_dev->base); 1803 phy_addr = (dma_addr_t)res->start; 1804 1805 irq_event = irq_of_parse_and_map(np, 0); 1806 if (!irq_event) { 1807 dev_err(&pdev->dev, "IRQ event missing or invalid\n"); 1808 return -EINVAL; 1809 } 1810 1811 irq_error = irq_of_parse_and_map(np, 1); 1812 if (!irq_error) { 1813 dev_err(&pdev->dev, "IRQ error missing or invalid\n"); 1814 return -EINVAL; 1815 } 1816 1817 i2c_dev->clk = devm_clk_get(&pdev->dev, NULL); 1818 if (IS_ERR(i2c_dev->clk)) { 1819 dev_err(&pdev->dev, "Error: Missing controller clock\n"); 1820 return PTR_ERR(i2c_dev->clk); 1821 } 1822 1823 ret = clk_prepare_enable(i2c_dev->clk); 1824 if (ret) { 1825 dev_err(&pdev->dev, "Failed to prepare_enable clock\n"); 1826 return ret; 1827 } 1828 1829 i2c_dev->speed = STM32_I2C_SPEED_STANDARD; 1830 ret = device_property_read_u32(&pdev->dev, "clock-frequency", 1831 &clk_rate); 1832 if (!ret && clk_rate >= 1000000) 1833 i2c_dev->speed = STM32_I2C_SPEED_FAST_PLUS; 1834 else if (!ret && clk_rate >= 400000) 1835 i2c_dev->speed = STM32_I2C_SPEED_FAST; 1836 else if (!ret && clk_rate >= 100000) 1837 i2c_dev->speed = STM32_I2C_SPEED_STANDARD; 1838 1839 rst = devm_reset_control_get(&pdev->dev, NULL); 1840 if (IS_ERR(rst)) { 1841 dev_err(&pdev->dev, "Error: Missing controller reset\n"); 1842 ret = PTR_ERR(rst); 1843 goto clk_free; 1844 } 1845 reset_control_assert(rst); 1846 udelay(2); 1847 reset_control_deassert(rst); 1848 1849 i2c_dev->dev = &pdev->dev; 1850 1851 ret = devm_request_threaded_irq(&pdev->dev, irq_event, 1852 stm32f7_i2c_isr_event, 1853 stm32f7_i2c_isr_event_thread, 1854 IRQF_ONESHOT, 1855 pdev->name, i2c_dev); 1856 if (ret) { 1857 dev_err(&pdev->dev, "Failed to request irq event %i\n", 1858 irq_event); 1859 goto clk_free; 1860 } 1861 1862 ret = devm_request_irq(&pdev->dev, irq_error, stm32f7_i2c_isr_error, 0, 1863 pdev->name, i2c_dev); 1864 if (ret) { 1865 dev_err(&pdev->dev, "Failed to request irq error %i\n", 1866 irq_error); 1867 goto clk_free; 1868 } 1869 1870 setup = of_device_get_match_data(&pdev->dev); 1871 if (!setup) { 1872 dev_err(&pdev->dev, "Can't get device data\n"); 1873 ret = -ENODEV; 1874 goto clk_free; 1875 } 1876 i2c_dev->setup = *setup; 1877 1878 ret = device_property_read_u32(i2c_dev->dev, "i2c-scl-rising-time-ns", 1879 &rise_time); 1880 if (!ret) 1881 i2c_dev->setup.rise_time = rise_time; 1882 1883 ret = device_property_read_u32(i2c_dev->dev, "i2c-scl-falling-time-ns", 1884 &fall_time); 1885 if (!ret) 1886 i2c_dev->setup.fall_time = fall_time; 1887 1888 ret = stm32f7_i2c_setup_timing(i2c_dev, &i2c_dev->setup); 1889 if (ret) 1890 goto clk_free; 1891 1892 adap = &i2c_dev->adap; 1893 i2c_set_adapdata(adap, i2c_dev); 1894 snprintf(adap->name, sizeof(adap->name), "STM32F7 I2C(%pa)", 1895 &res->start); 1896 adap->owner = THIS_MODULE; 1897 adap->timeout = 2 * HZ; 1898 adap->retries = 3; 1899 adap->algo = &stm32f7_i2c_algo; 1900 adap->dev.parent = &pdev->dev; 1901 adap->dev.of_node = pdev->dev.of_node; 1902 1903 init_completion(&i2c_dev->complete); 1904 1905 /* Init DMA config if supported */ 1906 i2c_dev->dma = stm32_i2c_dma_request(i2c_dev->dev, phy_addr, 1907 STM32F7_I2C_TXDR, 1908 STM32F7_I2C_RXDR); 1909 1910 platform_set_drvdata(pdev, i2c_dev); 1911 1912 pm_runtime_set_autosuspend_delay(i2c_dev->dev, > 1913 STM32F7_AUTOSUSPEND_DELAY); 1914 pm_runtime_use_autosuspend(i2c_dev->dev); 1915 pm_runtime_set_active(i2c_dev->dev); 1916 pm_runtime_enable(i2c_dev->dev); 1917 1918 pm_runtime_get_noresume(&pdev->dev); 1919 1920 stm32f7_i2c_hw_config(i2c_dev); 1921 1922 ret = i2c_add_adapter(adap); 1923 if (ret) 1924 goto pm_disable; 1925 1926 dev_info(i2c_dev->dev, "STM32F7 I2C-%d bus adapter\n", adap->nr); 1927 1928 pm_runtime_mark_last_busy(i2c_dev->dev); 1929 pm_runtime_put_autosuspend(i2c_dev->dev); 1930 1931 return 0; 1932 1933 pm_disable: 1934 pm_runtime_put_noidle(i2c_dev->dev); 1935 pm_runtime_disable(i2c_dev->dev); 1936 pm_runtime_set_suspended(i2c_dev->dev); 1937 pm_runtime_dont_use_autosuspend(i2c_dev->dev); 1938 1939 clk_free: 1940 clk_disable_unprepare(i2c_dev->clk); 1941 1942 return ret; 1943 } 1944 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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