Hi Shuai, kernel test robot noticed the following build warnings: [auto build test WARNING on wsa/i2c/for-next] [also build test WARNING on linus/master v6.3-rc6] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Shuai-Jiang/Subject-drivers-i2c-busses-i2c-qup-c-Add-missing-unwind-goto-in-qup_i2c_probe/20230417-004243 base: https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git i2c/for-next patch link: https://lore.kernel.org/r/20230416164146.7750-1-d202180596%40hust.edu.cn patch subject: [PATCH] Subject: drivers:i2c:busses:i2c-qup.c: Add missing unwind goto in qup_i2c_probe() config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20230417/202304170236.7BwOMXCa-lkp@xxxxxxxxx/config) compiler: m68k-linux-gcc (GCC) 12.1.0 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 # https://github.com/intel-lab-lkp/linux/commit/2f61e419c04ee41517d9543a5c6a97e3e392cd5e git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Shuai-Jiang/Subject-drivers-i2c-busses-i2c-qup-c-Add-missing-unwind-goto-in-qup_i2c_probe/20230417-004243 git checkout 2f61e419c04ee41517d9543a5c6a97e3e392cd5e # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash drivers/i2c/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202304170236.7BwOMXCa-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/i2c/busses/i2c-qup.c: In function 'qup_i2c_probe': >> drivers/i2c/busses/i2c-qup.c:1760:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation] 1760 | if (IS_ERR(qup->base)) | ^~ drivers/i2c/busses/i2c-qup.c:1762:17: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if' 1762 | ret = PTR_ERR(qup->base); | ^~~ drivers/i2c/busses/i2c-qup.c:1766:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation] 1766 | if (qup->irq < 0) | ^~ drivers/i2c/busses/i2c-qup.c:1768:17: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if' 1768 | ret = PTR_ERR(qup->irq); | ^~~ >> drivers/i2c/busses/i2c-qup.c:1768:34: warning: passing argument 1 of 'PTR_ERR' makes pointer from integer without a cast [-Wint-conversion] 1768 | ret = PTR_ERR(qup->irq); | ~~~^~~~~ | | | int In file included from include/linux/kernfs.h:9, from include/linux/sysfs.h:16, from include/linux/kobject.h:20, from include/linux/of.h:17, from include/linux/irqdomain.h:36, from include/linux/acpi.h:13, from drivers/i2c/busses/i2c-qup.c:8: include/linux/err.h:29:61: note: expected 'const void *' but argument is of type 'int' 29 | static inline long __must_check PTR_ERR(__force const void *ptr) | ~~~~~~~~~~~~^~~ vim +/if +1760 drivers/i2c/busses/i2c-qup.c 902a91a02bdf02 Austin Christ 2018-05-10 1656 10c5a8425968f8 Bjorn Andersson 2014-03-13 1657 static int qup_i2c_probe(struct platform_device *pdev) 10c5a8425968f8 Bjorn Andersson 2014-03-13 1658 { 10c5a8425968f8 Bjorn Andersson 2014-03-13 1659 static const int blk_sizes[] = {4, 16, 32}; 10c5a8425968f8 Bjorn Andersson 2014-03-13 1660 struct qup_i2c_dev *qup; 10c5a8425968f8 Bjorn Andersson 2014-03-13 1661 unsigned long one_bit_t; 10c5a8425968f8 Bjorn Andersson 2014-03-13 1662 u32 io_mode, hw_ver, size; 10c5a8425968f8 Bjorn Andersson 2014-03-13 1663 int ret, fs_div, hs_div; 515da746983bc6 Naveen Kaje 2016-10-11 1664 u32 src_clk_freq = DEFAULT_SRC_CLK; 515da746983bc6 Naveen Kaje 2016-10-11 1665 u32 clk_freq = DEFAULT_CLK_FREQ; 9cedf3b2f09946 Sricharan R 2016-02-22 1666 int blocks; 7545c7dba169c4 Abhishek Sahu 2018-03-12 1667 bool is_qup_v1; 10c5a8425968f8 Bjorn Andersson 2014-03-13 1668 10c5a8425968f8 Bjorn Andersson 2014-03-13 1669 qup = devm_kzalloc(&pdev->dev, sizeof(*qup), GFP_KERNEL); 10c5a8425968f8 Bjorn Andersson 2014-03-13 1670 if (!qup) 10c5a8425968f8 Bjorn Andersson 2014-03-13 1671 return -ENOMEM; 10c5a8425968f8 Bjorn Andersson 2014-03-13 1672 10c5a8425968f8 Bjorn Andersson 2014-03-13 1673 qup->dev = &pdev->dev; 10c5a8425968f8 Bjorn Andersson 2014-03-13 1674 init_completion(&qup->xfer); 10c5a8425968f8 Bjorn Andersson 2014-03-13 1675 platform_set_drvdata(pdev, qup); 10c5a8425968f8 Bjorn Andersson 2014-03-13 1676 d9f52281bc09bd Austin Christ 2018-05-10 1677 if (scl_freq) { d9f52281bc09bd Austin Christ 2018-05-10 1678 dev_notice(qup->dev, "Using override frequency of %u\n", scl_freq); d9f52281bc09bd Austin Christ 2018-05-10 1679 clk_freq = scl_freq; d9f52281bc09bd Austin Christ 2018-05-10 1680 } else { 515da746983bc6 Naveen Kaje 2016-10-11 1681 ret = device_property_read_u32(qup->dev, "clock-frequency", &clk_freq); 515da746983bc6 Naveen Kaje 2016-10-11 1682 if (ret) { 515da746983bc6 Naveen Kaje 2016-10-11 1683 dev_notice(qup->dev, "using default clock-frequency %d", 515da746983bc6 Naveen Kaje 2016-10-11 1684 DEFAULT_CLK_FREQ); 515da746983bc6 Naveen Kaje 2016-10-11 1685 } d9f52281bc09bd Austin Christ 2018-05-10 1686 } 10c5a8425968f8 Bjorn Andersson 2014-03-13 1687 191424bb6166f6 Sricharan R 2016-01-19 1688 if (of_device_is_compatible(pdev->dev.of_node, "qcom,i2c-qup-v1.1.1")) { 191424bb6166f6 Sricharan R 2016-01-19 1689 qup->adap.algo = &qup_i2c_algo; 191424bb6166f6 Sricharan R 2016-01-19 1690 qup->adap.quirks = &qup_i2c_quirks; 7545c7dba169c4 Abhishek Sahu 2018-03-12 1691 is_qup_v1 = true; 191424bb6166f6 Sricharan R 2016-01-19 1692 } else { 191424bb6166f6 Sricharan R 2016-01-19 1693 qup->adap.algo = &qup_i2c_algo_v2; de82bb43185558 Wolfram Sang 2018-07-23 1694 qup->adap.quirks = &qup_i2c_quirks_v2; 7545c7dba169c4 Abhishek Sahu 2018-03-12 1695 is_qup_v1 = false; 902a91a02bdf02 Austin Christ 2018-05-10 1696 if (acpi_match_device(qup_i2c_acpi_match, qup->dev)) 902a91a02bdf02 Austin Christ 2018-05-10 1697 goto nodma; 902a91a02bdf02 Austin Christ 2018-05-10 1698 else 9cedf3b2f09946 Sricharan R 2016-02-22 1699 ret = qup_i2c_req_dma(qup); 9cedf3b2f09946 Sricharan R 2016-02-22 1700 9cedf3b2f09946 Sricharan R 2016-02-22 1701 if (ret == -EPROBE_DEFER) 9cedf3b2f09946 Sricharan R 2016-02-22 1702 goto fail_dma; 9cedf3b2f09946 Sricharan R 2016-02-22 1703 else if (ret != 0) 9cedf3b2f09946 Sricharan R 2016-02-22 1704 goto nodma; 9cedf3b2f09946 Sricharan R 2016-02-22 1705 6f2f0f6465acbd Abhishek Sahu 2018-03-12 1706 qup->max_xfer_sg_len = (MX_BLOCKS << 1); 6f2f0f6465acbd Abhishek Sahu 2018-03-12 1707 blocks = (MX_DMA_BLOCKS << 1) + 1; a86854d0c599b3 Kees Cook 2018-06-12 1708 qup->btx.sg = devm_kcalloc(&pdev->dev, a86854d0c599b3 Kees Cook 2018-06-12 1709 blocks, sizeof(*qup->btx.sg), 9cedf3b2f09946 Sricharan R 2016-02-22 1710 GFP_KERNEL); 9cedf3b2f09946 Sricharan R 2016-02-22 1711 if (!qup->btx.sg) { 9cedf3b2f09946 Sricharan R 2016-02-22 1712 ret = -ENOMEM; 9cedf3b2f09946 Sricharan R 2016-02-22 1713 goto fail_dma; 9cedf3b2f09946 Sricharan R 2016-02-22 1714 } 9cedf3b2f09946 Sricharan R 2016-02-22 1715 sg_init_table(qup->btx.sg, blocks); 9cedf3b2f09946 Sricharan R 2016-02-22 1716 a86854d0c599b3 Kees Cook 2018-06-12 1717 qup->brx.sg = devm_kcalloc(&pdev->dev, a86854d0c599b3 Kees Cook 2018-06-12 1718 blocks, sizeof(*qup->brx.sg), 9cedf3b2f09946 Sricharan R 2016-02-22 1719 GFP_KERNEL); 9cedf3b2f09946 Sricharan R 2016-02-22 1720 if (!qup->brx.sg) { 9cedf3b2f09946 Sricharan R 2016-02-22 1721 ret = -ENOMEM; 9cedf3b2f09946 Sricharan R 2016-02-22 1722 goto fail_dma; 9cedf3b2f09946 Sricharan R 2016-02-22 1723 } 9cedf3b2f09946 Sricharan R 2016-02-22 1724 sg_init_table(qup->brx.sg, blocks); 9cedf3b2f09946 Sricharan R 2016-02-22 1725 9cedf3b2f09946 Sricharan R 2016-02-22 1726 /* 2 tag bytes for each block + 5 for start, stop tags */ 9cedf3b2f09946 Sricharan R 2016-02-22 1727 size = blocks * 2 + 5; 9cedf3b2f09946 Sricharan R 2016-02-22 1728 685983f4decc5f Sricharan R 2016-06-10 1729 qup->start_tag.start = devm_kzalloc(&pdev->dev, 685983f4decc5f Sricharan R 2016-06-10 1730 size, GFP_KERNEL); 9cedf3b2f09946 Sricharan R 2016-02-22 1731 if (!qup->start_tag.start) { 9cedf3b2f09946 Sricharan R 2016-02-22 1732 ret = -ENOMEM; 9cedf3b2f09946 Sricharan R 2016-02-22 1733 goto fail_dma; 9cedf3b2f09946 Sricharan R 2016-02-22 1734 } 9cedf3b2f09946 Sricharan R 2016-02-22 1735 685983f4decc5f Sricharan R 2016-06-10 1736 qup->brx.tag.start = devm_kzalloc(&pdev->dev, 2, GFP_KERNEL); 9cedf3b2f09946 Sricharan R 2016-02-22 1737 if (!qup->brx.tag.start) { 9cedf3b2f09946 Sricharan R 2016-02-22 1738 ret = -ENOMEM; 9cedf3b2f09946 Sricharan R 2016-02-22 1739 goto fail_dma; 191424bb6166f6 Sricharan R 2016-01-19 1740 } 191424bb6166f6 Sricharan R 2016-01-19 1741 685983f4decc5f Sricharan R 2016-06-10 1742 qup->btx.tag.start = devm_kzalloc(&pdev->dev, 2, GFP_KERNEL); 9cedf3b2f09946 Sricharan R 2016-02-22 1743 if (!qup->btx.tag.start) { 9cedf3b2f09946 Sricharan R 2016-02-22 1744 ret = -ENOMEM; 9cedf3b2f09946 Sricharan R 2016-02-22 1745 goto fail_dma; 9cedf3b2f09946 Sricharan R 2016-02-22 1746 } 9cedf3b2f09946 Sricharan R 2016-02-22 1747 qup->is_dma = true; 9cedf3b2f09946 Sricharan R 2016-02-22 1748 } 9cedf3b2f09946 Sricharan R 2016-02-22 1749 9cedf3b2f09946 Sricharan R 2016-02-22 1750 nodma: 109b8c42b7e28d Austin Christ 2018-05-10 1751 /* We support frequencies up to FAST Mode Plus (1MHz) */ 90224e6468e15d Andy Shevchenko 2020-03-24 1752 if (!clk_freq || clk_freq > I2C_MAX_FAST_MODE_PLUS_FREQ) { 10c5a8425968f8 Bjorn Andersson 2014-03-13 1753 dev_err(qup->dev, "clock frequency not supported %d\n", 10c5a8425968f8 Bjorn Andersson 2014-03-13 1754 clk_freq); 2f61e419c04ee4 Shuai Jiang 2023-04-17 1755 ret = -EINVAL; 2f61e419c04ee4 Shuai Jiang 2023-04-17 1756 goto fail_dma; 10c5a8425968f8 Bjorn Andersson 2014-03-13 1757 } 10c5a8425968f8 Bjorn Andersson 2014-03-13 1758 e0442d76213981 Dejin Zheng 2020-04-09 1759 qup->base = devm_platform_ioremap_resource(pdev, 0); 10c5a8425968f8 Bjorn Andersson 2014-03-13 @1760 if (IS_ERR(qup->base)) 2f61e419c04ee4 Shuai Jiang 2023-04-17 1761 dev_err(qup->dev, "Could not get qup_i2c_dev base ptr\n"); 2f61e419c04ee4 Shuai Jiang 2023-04-17 1762 ret = PTR_ERR(qup->base); 2f61e419c04ee4 Shuai Jiang 2023-04-17 1763 goto fail_dma; 10c5a8425968f8 Bjorn Andersson 2014-03-13 1764 10c5a8425968f8 Bjorn Andersson 2014-03-13 1765 qup->irq = platform_get_irq(pdev, 0); e42688ed5cf593 Dejin Zheng 2020-04-16 1766 if (qup->irq < 0) 2f61e419c04ee4 Shuai Jiang 2023-04-17 1767 dev_err(qup->dev, "qup_i2c_dev irq ptr less than zero\n"); 2f61e419c04ee4 Shuai Jiang 2023-04-17 @1768 ret = PTR_ERR(qup->irq); 2f61e419c04ee4 Shuai Jiang 2023-04-17 1769 goto fail_dma; 10c5a8425968f8 Bjorn Andersson 2014-03-13 1770 515da746983bc6 Naveen Kaje 2016-10-11 1771 if (has_acpi_companion(qup->dev)) { 515da746983bc6 Naveen Kaje 2016-10-11 1772 ret = device_property_read_u32(qup->dev, 515da746983bc6 Naveen Kaje 2016-10-11 1773 "src-clock-hz", &src_clk_freq); 515da746983bc6 Naveen Kaje 2016-10-11 1774 if (ret) { 515da746983bc6 Naveen Kaje 2016-10-11 1775 dev_notice(qup->dev, "using default src-clock-hz %d", 515da746983bc6 Naveen Kaje 2016-10-11 1776 DEFAULT_SRC_CLK); 515da746983bc6 Naveen Kaje 2016-10-11 1777 } 515da746983bc6 Naveen Kaje 2016-10-11 1778 ACPI_COMPANION_SET(&qup->adap.dev, ACPI_COMPANION(qup->dev)); 515da746983bc6 Naveen Kaje 2016-10-11 1779 } else { 10c5a8425968f8 Bjorn Andersson 2014-03-13 1780 qup->clk = devm_clk_get(qup->dev, "core"); 10c5a8425968f8 Bjorn Andersson 2014-03-13 1781 if (IS_ERR(qup->clk)) { 10c5a8425968f8 Bjorn Andersson 2014-03-13 1782 dev_err(qup->dev, "Could not get core clock\n"); 2f61e419c04ee4 Shuai Jiang 2023-04-17 1783 ret = PTR_ERR(qup->clk); 2f61e419c04ee4 Shuai Jiang 2023-04-17 1784 goto fail_dma; 10c5a8425968f8 Bjorn Andersson 2014-03-13 1785 } 10c5a8425968f8 Bjorn Andersson 2014-03-13 1786 10c5a8425968f8 Bjorn Andersson 2014-03-13 1787 qup->pclk = devm_clk_get(qup->dev, "iface"); 10c5a8425968f8 Bjorn Andersson 2014-03-13 1788 if (IS_ERR(qup->pclk)) { 10c5a8425968f8 Bjorn Andersson 2014-03-13 1789 dev_err(qup->dev, "Could not get iface clock\n"); 2f61e419c04ee4 Shuai Jiang 2023-04-17 1790 ret = PTR_ERR(qup->pclk); 2f61e419c04ee4 Shuai Jiang 2023-04-17 1791 goto fail_dma; 10c5a8425968f8 Bjorn Andersson 2014-03-13 1792 } 10c5a8425968f8 Bjorn Andersson 2014-03-13 1793 qup_i2c_enable_clocks(qup); 515da746983bc6 Naveen Kaje 2016-10-11 1794 src_clk_freq = clk_get_rate(qup->clk); 515da746983bc6 Naveen Kaje 2016-10-11 1795 } 10c5a8425968f8 Bjorn Andersson 2014-03-13 1796 10c5a8425968f8 Bjorn Andersson 2014-03-13 1797 /* 10c5a8425968f8 Bjorn Andersson 2014-03-13 1798 * Bootloaders might leave a pending interrupt on certain QUP's, 10c5a8425968f8 Bjorn Andersson 2014-03-13 1799 * so we reset the core before registering for interrupts. 10c5a8425968f8 Bjorn Andersson 2014-03-13 1800 */ 10c5a8425968f8 Bjorn Andersson 2014-03-13 1801 writel(1, qup->base + QUP_SW_RESET); 10c5a8425968f8 Bjorn Andersson 2014-03-13 1802 ret = qup_i2c_poll_state_valid(qup); 10c5a8425968f8 Bjorn Andersson 2014-03-13 1803 if (ret) 10c5a8425968f8 Bjorn Andersson 2014-03-13 1804 goto fail; 10c5a8425968f8 Bjorn Andersson 2014-03-13 1805 10c5a8425968f8 Bjorn Andersson 2014-03-13 1806 ret = devm_request_irq(qup->dev, qup->irq, qup_i2c_interrupt, 5fe058b04d017a Tian Tao 2021-03-19 1807 IRQF_TRIGGER_HIGH | IRQF_NO_AUTOEN, 5fe058b04d017a Tian Tao 2021-03-19 1808 "i2c_qup", qup); 10c5a8425968f8 Bjorn Andersson 2014-03-13 1809 if (ret) { 10c5a8425968f8 Bjorn Andersson 2014-03-13 1810 dev_err(qup->dev, "Request %d IRQ failed\n", qup->irq); 10c5a8425968f8 Bjorn Andersson 2014-03-13 1811 goto fail; 10c5a8425968f8 Bjorn Andersson 2014-03-13 1812 } 10c5a8425968f8 Bjorn Andersson 2014-03-13 1813 10c5a8425968f8 Bjorn Andersson 2014-03-13 1814 hw_ver = readl(qup->base + QUP_HW_VERSION); 10c5a8425968f8 Bjorn Andersson 2014-03-13 1815 dev_dbg(qup->dev, "Revision %x\n", hw_ver); 10c5a8425968f8 Bjorn Andersson 2014-03-13 1816 10c5a8425968f8 Bjorn Andersson 2014-03-13 1817 io_mode = readl(qup->base + QUP_IO_MODE); 10c5a8425968f8 Bjorn Andersson 2014-03-13 1818 10c5a8425968f8 Bjorn Andersson 2014-03-13 1819 /* 10c5a8425968f8 Bjorn Andersson 2014-03-13 1820 * The block/fifo size w.r.t. 'actual data' is 1/2 due to 'tag' 10c5a8425968f8 Bjorn Andersson 2014-03-13 1821 * associated with each byte written/received 10c5a8425968f8 Bjorn Andersson 2014-03-13 1822 */ 10c5a8425968f8 Bjorn Andersson 2014-03-13 1823 size = QUP_OUTPUT_BLOCK_SIZE(io_mode); 3cf357dfb40b4a Pramod Gurav 2014-08-06 1824 if (size >= ARRAY_SIZE(blk_sizes)) { 3cf357dfb40b4a Pramod Gurav 2014-08-06 1825 ret = -EIO; 3cf357dfb40b4a Pramod Gurav 2014-08-06 1826 goto fail; 3cf357dfb40b4a Pramod Gurav 2014-08-06 1827 } 7545c7dba169c4 Abhishek Sahu 2018-03-12 1828 qup->out_blk_sz = blk_sizes[size]; 10c5a8425968f8 Bjorn Andersson 2014-03-13 1829 10c5a8425968f8 Bjorn Andersson 2014-03-13 1830 size = QUP_INPUT_BLOCK_SIZE(io_mode); 3cf357dfb40b4a Pramod Gurav 2014-08-06 1831 if (size >= ARRAY_SIZE(blk_sizes)) { 3cf357dfb40b4a Pramod Gurav 2014-08-06 1832 ret = -EIO; 3cf357dfb40b4a Pramod Gurav 2014-08-06 1833 goto fail; 3cf357dfb40b4a Pramod Gurav 2014-08-06 1834 } 7545c7dba169c4 Abhishek Sahu 2018-03-12 1835 qup->in_blk_sz = blk_sizes[size]; 7545c7dba169c4 Abhishek Sahu 2018-03-12 1836 7545c7dba169c4 Abhishek Sahu 2018-03-12 1837 if (is_qup_v1) { 7545c7dba169c4 Abhishek Sahu 2018-03-12 1838 /* 7545c7dba169c4 Abhishek Sahu 2018-03-12 1839 * in QUP v1, QUP_CONFIG uses N as 15 i.e 16 bits constitutes a 7545c7dba169c4 Abhishek Sahu 2018-03-12 1840 * single transfer but the block size is in bytes so divide the 7545c7dba169c4 Abhishek Sahu 2018-03-12 1841 * in_blk_sz and out_blk_sz by 2 7545c7dba169c4 Abhishek Sahu 2018-03-12 1842 */ 7545c7dba169c4 Abhishek Sahu 2018-03-12 1843 qup->in_blk_sz /= 2; 7545c7dba169c4 Abhishek Sahu 2018-03-12 1844 qup->out_blk_sz /= 2; 7545c7dba169c4 Abhishek Sahu 2018-03-12 1845 qup->write_tx_fifo = qup_i2c_write_tx_fifo_v1; 7545c7dba169c4 Abhishek Sahu 2018-03-12 1846 qup->read_rx_fifo = qup_i2c_read_rx_fifo_v1; 7545c7dba169c4 Abhishek Sahu 2018-03-12 1847 qup->write_rx_tags = qup_i2c_write_rx_tags_v1; 7545c7dba169c4 Abhishek Sahu 2018-03-12 1848 } else { 7545c7dba169c4 Abhishek Sahu 2018-03-12 1849 qup->write_tx_fifo = qup_i2c_write_tx_fifo_v2; 7545c7dba169c4 Abhishek Sahu 2018-03-12 1850 qup->read_rx_fifo = qup_i2c_read_rx_fifo_v2; 7545c7dba169c4 Abhishek Sahu 2018-03-12 1851 qup->write_rx_tags = qup_i2c_write_rx_tags_v2; 7545c7dba169c4 Abhishek Sahu 2018-03-12 1852 } 10c5a8425968f8 Bjorn Andersson 2014-03-13 1853 10c5a8425968f8 Bjorn Andersson 2014-03-13 1854 size = QUP_OUTPUT_FIFO_SIZE(io_mode); 10c5a8425968f8 Bjorn Andersson 2014-03-13 1855 qup->out_fifo_sz = qup->out_blk_sz * (2 << size); 10c5a8425968f8 Bjorn Andersson 2014-03-13 1856 10c5a8425968f8 Bjorn Andersson 2014-03-13 1857 size = QUP_INPUT_FIFO_SIZE(io_mode); 10c5a8425968f8 Bjorn Andersson 2014-03-13 1858 qup->in_fifo_sz = qup->in_blk_sz * (2 << size); 10c5a8425968f8 Bjorn Andersson 2014-03-13 1859 10c5a8425968f8 Bjorn Andersson 2014-03-13 1860 hs_div = 3; 90224e6468e15d Andy Shevchenko 2020-03-24 1861 if (clk_freq <= I2C_MAX_STANDARD_MODE_FREQ) { 71fbafcc45fed7 Austin Christ 2018-05-10 1862 fs_div = ((src_clk_freq / clk_freq) / 2) - 3; 10c5a8425968f8 Bjorn Andersson 2014-03-13 1863 qup->clk_ctl = (hs_div << 8) | (fs_div & 0xff); 71fbafcc45fed7 Austin Christ 2018-05-10 1864 } else { 71fbafcc45fed7 Austin Christ 2018-05-10 1865 /* 33%/66% duty cycle */ 71fbafcc45fed7 Austin Christ 2018-05-10 1866 fs_div = ((src_clk_freq / clk_freq) - 6) * 2 / 3; 71fbafcc45fed7 Austin Christ 2018-05-10 1867 qup->clk_ctl = ((fs_div / 2) << 16) | (hs_div << 8) | (fs_div & 0xff); 71fbafcc45fed7 Austin Christ 2018-05-10 1868 } 10c5a8425968f8 Bjorn Andersson 2014-03-13 1869 10c5a8425968f8 Bjorn Andersson 2014-03-13 1870 /* 10c5a8425968f8 Bjorn Andersson 2014-03-13 1871 * Time it takes for a byte to be clocked out on the bus. 10c5a8425968f8 Bjorn Andersson 2014-03-13 1872 * Each byte takes 9 clock cycles (8 bits + 1 ack). 10c5a8425968f8 Bjorn Andersson 2014-03-13 1873 */ 10c5a8425968f8 Bjorn Andersson 2014-03-13 1874 one_bit_t = (USEC_PER_SEC / clk_freq) + 1; 10c5a8425968f8 Bjorn Andersson 2014-03-13 1875 qup->one_byte_t = one_bit_t * 9; ecb6e1e5f43520 Abhishek Sahu 2018-03-12 1876 qup->xfer_timeout = TOUT_MIN * HZ + 6f2f0f6465acbd Abhishek Sahu 2018-03-12 1877 usecs_to_jiffies(MX_DMA_TX_RX_LEN * qup->one_byte_t); 10c5a8425968f8 Bjorn Andersson 2014-03-13 1878 10c5a8425968f8 Bjorn Andersson 2014-03-13 1879 dev_dbg(qup->dev, "IN:block:%d, fifo:%d, OUT:block:%d, fifo:%d\n", 10c5a8425968f8 Bjorn Andersson 2014-03-13 1880 qup->in_blk_sz, qup->in_fifo_sz, 10c5a8425968f8 Bjorn Andersson 2014-03-13 1881 qup->out_blk_sz, qup->out_fifo_sz); 10c5a8425968f8 Bjorn Andersson 2014-03-13 1882 10c5a8425968f8 Bjorn Andersson 2014-03-13 1883 i2c_set_adapdata(&qup->adap, qup); 10c5a8425968f8 Bjorn Andersson 2014-03-13 1884 qup->adap.dev.parent = qup->dev; 10c5a8425968f8 Bjorn Andersson 2014-03-13 1885 qup->adap.dev.of_node = pdev->dev.of_node; 9cedf3b2f09946 Sricharan R 2016-02-22 1886 qup->is_last = true; f74187932d30e4 Sricharan R 2016-01-19 1887 ea1558ce149d28 Wolfram Sang 2022-08-11 1888 strscpy(qup->adap.name, "QUP I2C adapter", sizeof(qup->adap.name)); 10c5a8425968f8 Bjorn Andersson 2014-03-13 1889 10c5a8425968f8 Bjorn Andersson 2014-03-13 1890 pm_runtime_set_autosuspend_delay(qup->dev, MSEC_PER_SEC); 10c5a8425968f8 Bjorn Andersson 2014-03-13 1891 pm_runtime_use_autosuspend(qup->dev); 10c5a8425968f8 Bjorn Andersson 2014-03-13 1892 pm_runtime_set_active(qup->dev); 10c5a8425968f8 Bjorn Andersson 2014-03-13 1893 pm_runtime_enable(qup->dev); 86b59bbfae2a89 Andy Gross 2014-09-29 1894 86b59bbfae2a89 Andy Gross 2014-09-29 1895 ret = i2c_add_adapter(&qup->adap); 86b59bbfae2a89 Andy Gross 2014-09-29 1896 if (ret) 86b59bbfae2a89 Andy Gross 2014-09-29 1897 goto fail_runtime; 86b59bbfae2a89 Andy Gross 2014-09-29 1898 10c5a8425968f8 Bjorn Andersson 2014-03-13 1899 return 0; 10c5a8425968f8 Bjorn Andersson 2014-03-13 1900 86b59bbfae2a89 Andy Gross 2014-09-29 1901 fail_runtime: 86b59bbfae2a89 Andy Gross 2014-09-29 1902 pm_runtime_disable(qup->dev); 86b59bbfae2a89 Andy Gross 2014-09-29 1903 pm_runtime_set_suspended(qup->dev); 10c5a8425968f8 Bjorn Andersson 2014-03-13 1904 fail: 10c5a8425968f8 Bjorn Andersson 2014-03-13 1905 qup_i2c_disable_clocks(qup); 9cedf3b2f09946 Sricharan R 2016-02-22 1906 fail_dma: 9cedf3b2f09946 Sricharan R 2016-02-22 1907 if (qup->btx.dma) 9cedf3b2f09946 Sricharan R 2016-02-22 1908 dma_release_channel(qup->btx.dma); 9cedf3b2f09946 Sricharan R 2016-02-22 1909 if (qup->brx.dma) 9cedf3b2f09946 Sricharan R 2016-02-22 1910 dma_release_channel(qup->brx.dma); 10c5a8425968f8 Bjorn Andersson 2014-03-13 1911 return ret; 10c5a8425968f8 Bjorn Andersson 2014-03-13 1912 } 10c5a8425968f8 Bjorn Andersson 2014-03-13 1913 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
