* drivers/gpu/drm/bridge/tda998x_drv.c:1883:8-28: WARNING: Threaded IRQ with no primary handler requested without IRQF_ONESHOT (unless it is nested IRQ)
@ 2026-01-13 12:05 kernel test robot
0 siblings, 0 replies; 3+ messages in thread
From: kernel test robot @ 2026-01-13 12:05 UTC (permalink / raw)
To: oe-kbuild; +Cc: lkp, Julia Lawall
BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
CC: linux-kernel@vger.kernel.org
TO: Dmitry Baryshkov <lumag@kernel.org>
CC: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Hi Dmitry,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: b71e635feefc852405b14620a7fc58c4c80c0f73
commit: 325ba852d148434c5bcb06d513af1933a7f77b70 drm/i2c: move TDA998x driver under drivers/gpu/drm/bridge
date: 11 months ago
:::::: branch date: 16 hours ago
:::::: commit date: 11 months ago
config: x86_64-randconfig-101-20260112 (https://download.01.org/0day-ci/archive/20260113/202601131929.hu6imWfs-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Reported-by: Julia Lawall <julia.lawall@inria.fr>
| Closes: https://lore.kernel.org/r/202601131929.hu6imWfs-lkp@intel.com/
cocci warnings: (new ones prefixed by >>)
>> drivers/gpu/drm/bridge/tda998x_drv.c:1883:8-28: WARNING: Threaded IRQ with no primary handler requested without IRQF_ONESHOT (unless it is nested IRQ)
vim +1883 drivers/gpu/drm/bridge/tda998x_drv.c
76767fdabadbea drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1773
2143adb04b357e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1774 static int tda998x_create(struct device *dev)
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1775 {
2143adb04b357e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1776 struct i2c_client *client = to_i2c_client(dev);
0d44ea190387e2 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1777 struct device_node *np = client->dev.of_node;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1778 struct i2c_board_info cec_info;
2143adb04b357e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1779 struct tda998x_priv *priv;
0d44ea190387e2 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1780 u32 video;
fb7544d7732f78 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2014-02-02 1781 int rev_lo, rev_hi, ret;
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1782
2143adb04b357e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1783 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
2143adb04b357e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1784 if (!priv)
2143adb04b357e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1785 return -ENOMEM;
2143adb04b357e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1786
2143adb04b357e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1787 dev_set_drvdata(dev, priv);
2143adb04b357e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1788
d93ae190e2c952 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1789 mutex_init(&priv->mutex); /* protect the page access */
d93ae190e2c952 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1790 mutex_init(&priv->audio_mutex); /* protect access from audio thread */
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1791 mutex_init(&priv->edid_mutex);
30bd8b862f5466 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1792 INIT_LIST_HEAD(&priv->bridge.list);
d93ae190e2c952 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1793 init_waitqueue_head(&priv->edid_delay_waitq);
d93ae190e2c952 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1794 timer_setup(&priv->edid_delay_timer, tda998x_edid_delay_done, 0);
d93ae190e2c952 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1795 INIT_WORK(&priv->detect_work, tda998x_detect_work);
ba300c1787f793 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1796
5e74c22cd1e0f9 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2013-08-14 1797 priv->vip_cntrl_0 = VIP_CNTRL_0_SWAP_A(2) | VIP_CNTRL_0_SWAP_B(3);
5e74c22cd1e0f9 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2013-08-14 1798 priv->vip_cntrl_1 = VIP_CNTRL_1_SWAP_C(0) | VIP_CNTRL_1_SWAP_D(1);
5e74c22cd1e0f9 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2013-08-14 1799 priv->vip_cntrl_2 = VIP_CNTRL_2_SWAP_E(4) | VIP_CNTRL_2_SWAP_F(5);
5e74c22cd1e0f9 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2013-08-14 1800
14e5b5889d7589 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-03 1801 /* CEC I2C address bound to TDA998x I2C addr by configuration pins */
14e5b5889d7589 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-03 1802 priv->cec_addr = 0x34 + (client->addr & 0x03);
2eb4c7b1e7f275 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1803 priv->current_page = 0xff;
2f7f730a4f0fd3 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1804 priv->hdmi = client;
ed9a84262a83ab drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-11-29 1805
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1806 /* wake up the device: */
2f7f730a4f0fd3 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1807 cec_write(priv, REG_CEC_ENAMODS,
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1808 CEC_ENAMODS_EN_RXSENS | CEC_ENAMODS_EN_HDMI);
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1809
2f7f730a4f0fd3 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1810 tda998x_reset(priv);
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1811
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1812 /* read version: */
fb7544d7732f78 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2014-02-02 1813 rev_lo = reg_read(priv, REG_VERSION_LSB);
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1814 if (rev_lo < 0) {
76767fdabadbea drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1815 dev_err(dev, "failed to read version: %d\n", rev_lo);
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1816 return rev_lo;
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1817 }
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1818
fb7544d7732f78 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2014-02-02 1819 rev_hi = reg_read(priv, REG_VERSION_MSB);
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1820 if (rev_hi < 0) {
76767fdabadbea drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1821 dev_err(dev, "failed to read version: %d\n", rev_hi);
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1822 return rev_hi;
fb7544d7732f78 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2014-02-02 1823 }
fb7544d7732f78 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2014-02-02 1824
fb7544d7732f78 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2014-02-02 1825 priv->rev = rev_lo | rev_hi << 8;
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1826
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1827 /* mask off feature bits: */
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1828 priv->rev &= ~0x30; /* not-hdcp and not-scalar bit */
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1829
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1830 switch (priv->rev) {
b728fab7026b9d drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1831 case TDA9989N2:
76767fdabadbea drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1832 dev_info(dev, "found TDA9989 n2");
b728fab7026b9d drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1833 break;
b728fab7026b9d drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1834 case TDA19989:
76767fdabadbea drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1835 dev_info(dev, "found TDA19989");
b728fab7026b9d drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1836 break;
b728fab7026b9d drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1837 case TDA19989N2:
76767fdabadbea drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1838 dev_info(dev, "found TDA19989 n2");
b728fab7026b9d drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1839 break;
b728fab7026b9d drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1840 case TDA19988:
76767fdabadbea drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1841 dev_info(dev, "found TDA19988");
b728fab7026b9d drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1842 break;
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1843 default:
76767fdabadbea drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1844 dev_err(dev, "found unsupported device: %04x\n", priv->rev);
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1845 return -ENXIO;
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1846 }
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1847
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1848 /* after reset, enable DDC: */
2f7f730a4f0fd3 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1849 reg_write(priv, REG_DDC_DISABLE, 0x00);
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1850
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1851 /* set clock on DDC channel: */
2f7f730a4f0fd3 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1852 reg_write(priv, REG_TX3, 39);
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1853
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1854 /* if necessary, disable multi-master: */
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1855 if (priv->rev == TDA19989)
2f7f730a4f0fd3 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1856 reg_set(priv, REG_I2C_MASTER, I2C_MASTER_DIS_MM);
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1857
2f7f730a4f0fd3 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1858 cec_write(priv, REG_CEC_FRO_IM_CLK_CTRL,
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1859 CEC_FRO_IM_CLK_CTRL_GHOST_DIS | CEC_FRO_IM_CLK_CTRL_IMCLK_SEL);
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1860
ba8975f15bb93d drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2017-03-11 1861 /* ensure interrupts are disabled */
ba8975f15bb93d drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2017-03-11 1862 cec_write(priv, REG_CEC_RXSHPDINTENA, 0);
ba8975f15bb93d drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2017-03-11 1863
ba8975f15bb93d drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2017-03-11 1864 /* clear pending interrupts */
ba8975f15bb93d drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2017-03-11 1865 cec_read(priv, REG_CEC_RXSHPDINT);
ba8975f15bb93d drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2017-03-11 1866 reg_read(priv, REG_INT_FLAGS_0);
ba8975f15bb93d drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2017-03-11 1867 reg_read(priv, REG_INT_FLAGS_1);
ba8975f15bb93d drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2017-03-11 1868 reg_read(priv, REG_INT_FLAGS_2);
ba8975f15bb93d drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2017-03-11 1869
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1870 /* initialize the optional IRQ */
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1871 if (client->irq) {
ae81553c30ef86 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-03 1872 unsigned long irq_flags;
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1873
6833d26ef823b2 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-11-29 1874 /* init read EDID waitqueue and HDP work */
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1875 init_waitqueue_head(&priv->wq_edid);
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1876
ae81553c30ef86 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-03 1877 irq_flags =
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1878 irqd_get_trigger_type(irq_get_irq_data(client->irq));
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1879
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1880 priv->cec_glue.irq_flags = irq_flags;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1881
ae81553c30ef86 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-03 1882 irq_flags |= IRQF_SHARED | IRQF_ONESHOT;
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 @1883 ret = request_threaded_irq(client->irq, NULL,
ae81553c30ef86 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-03 1884 tda998x_irq_thread, irq_flags,
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1885 "tda998x", priv);
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1886 if (ret) {
76767fdabadbea drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1887 dev_err(dev, "failed to request IRQ#%u: %d\n",
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1888 client->irq, ret);
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1889 goto err_irq;
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1890 }
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1891
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1892 /* enable HPD irq */
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1893 cec_write(priv, REG_CEC_RXSHPDINTENA, CEC_RXSHPDLEV_HPD);
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1894 }
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1895
ece485d550dce2 drivers/gpu/drm/i2c/tda998x_drv.c Dariusz Marcinkiewicz 2019-10-17 1896 priv->cec_notify = cec_notifier_conn_register(dev, NULL, NULL);
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1897 if (!priv->cec_notify) {
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1898 ret = -ENOMEM;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1899 goto fail;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1900 }
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1901
76767fdabadbea drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1902 priv->cec_glue.parent = dev;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1903 priv->cec_glue.data = priv;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1904 priv->cec_glue.init = tda998x_cec_hook_init;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1905 priv->cec_glue.exit = tda998x_cec_hook_exit;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1906 priv->cec_glue.open = tda998x_cec_hook_open;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1907 priv->cec_glue.release = tda998x_cec_hook_release;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1908
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1909 /*
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1910 * Some TDA998x are actually two I2C devices merged onto one piece
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1911 * of silicon: TDA9989 and TDA19989 combine the HDMI transmitter
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1912 * with a slightly modified TDA9950 CEC device. The CEC device
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1913 * is at the TDA9950 address, with the address pins strapped across
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1914 * to the TDA998x address pins. Hence, it always has the same
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1915 * offset.
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1916 */
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1917 memset(&cec_info, 0, sizeof(cec_info));
f4a0659f823e5a drivers/gpu/drm/i2c/tda998x_drv.c Azeem Shaikh 2023-05-22 1918 strscpy(cec_info.type, "tda9950", sizeof(cec_info.type));
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1919 cec_info.addr = priv->cec_addr;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1920 cec_info.platform_data = &priv->cec_glue;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1921 cec_info.irq = client->irq;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1922
bf2993c19b00af drivers/gpu/drm/i2c/tda998x_drv.c Wolfram Sang 2020-03-26 1923 priv->cec = i2c_new_client_device(client->adapter, &cec_info);
bf2993c19b00af drivers/gpu/drm/i2c/tda998x_drv.c Wolfram Sang 2020-03-26 1924 if (IS_ERR(priv->cec)) {
bf2993c19b00af drivers/gpu/drm/i2c/tda998x_drv.c Wolfram Sang 2020-03-26 1925 ret = PTR_ERR(priv->cec);
101e996b8d3215 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1926 goto fail;
101e996b8d3215 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1927 }
101e996b8d3215 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1928
e47826274e8871 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1929 /* enable EDID read irq: */
e47826274e8871 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1930 reg_set(priv, REG_INT_FLAGS_2, INT_FLAGS_2_EDID_BLK_RD);
e47826274e8871 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1931
6c1187aaa2912f drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1932 if (np) {
7e567624dc5a44 drivers/gpu/drm/i2c/tda998x_drv.c Jyri Sarha 2016-08-09 1933 /* get the device tree parameters */
0d44ea190387e2 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1934 ret = of_property_read_u32(np, "video-ports", &video);
0d44ea190387e2 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1935 if (ret == 0) {
0d44ea190387e2 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1936 priv->vip_cntrl_0 = video >> 16;
0d44ea190387e2 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1937 priv->vip_cntrl_1 = video >> 8;
0d44ea190387e2 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1938 priv->vip_cntrl_2 = video;
0d44ea190387e2 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1939 }
0d44ea190387e2 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1940
7e567624dc5a44 drivers/gpu/drm/i2c/tda998x_drv.c Jyri Sarha 2016-08-09 1941 ret = tda998x_get_audio_ports(priv, np);
7e567624dc5a44 drivers/gpu/drm/i2c/tda998x_drv.c Jyri Sarha 2016-08-09 1942 if (ret)
7e567624dc5a44 drivers/gpu/drm/i2c/tda998x_drv.c Jyri Sarha 2016-08-09 1943 goto fail;
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1944
7168916072b549 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2019-03-01 1945 if (priv->audio_port_enable[AUDIO_ROUTE_I2S] ||
7168916072b549 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2019-03-01 1946 priv->audio_port_enable[AUDIO_ROUTE_SPDIF])
7e567624dc5a44 drivers/gpu/drm/i2c/tda998x_drv.c Jyri Sarha 2016-08-09 1947 tda998x_audio_codec_init(priv, &client->dev);
6c1187aaa2912f drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1948 }
7e567624dc5a44 drivers/gpu/drm/i2c/tda998x_drv.c Jyri Sarha 2016-08-09 1949
30bd8b862f5466 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1950 priv->bridge.funcs = &tda998x_bridge_funcs;
30bd8b862f5466 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1951 #ifdef CONFIG_OF
30bd8b862f5466 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1952 priv->bridge.of_node = dev->of_node;
30bd8b862f5466 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1953 #endif
30bd8b862f5466 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1954
30bd8b862f5466 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1955 drm_bridge_add(&priv->bridge);
7e567624dc5a44 drivers/gpu/drm/i2c/tda998x_drv.c Jyri Sarha 2016-08-09 1956
7e567624dc5a44 drivers/gpu/drm/i2c/tda998x_drv.c Jyri Sarha 2016-08-09 1957 return 0;
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1958
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1959 fail:
2143adb04b357e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1960 tda998x_destroy(dev);
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1961 err_irq:
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1962 return ret;
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1963 }
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1964
:::::: The code at line 1883 was first introduced by commit
:::::: 12473b7d8e6074c7d4c2816afa6027354ce9a502 drm/i2c: tda998x: use irq for connection status and EDID read
:::::: TO: Jean-Francois Moine <moinejf@free.fr>
:::::: CC: Russell King <rmk+kernel@arm.linux.org.uk>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 3+ messages in thread
* drivers/gpu/drm/bridge/tda998x_drv.c:1883:8-28: WARNING: Threaded IRQ with no primary handler requested without IRQF_ONESHOT (unless it is nested IRQ)
@ 2026-01-16 1:53 kernel test robot
0 siblings, 0 replies; 3+ messages in thread
From: kernel test robot @ 2026-01-16 1:53 UTC (permalink / raw)
To: oe-kbuild; +Cc: lkp, Julia Lawall
BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
CC: linux-kernel@vger.kernel.org
TO: Dmitry Baryshkov <lumag@kernel.org>
CC: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Hi Dmitry,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 603c05a1639f60e0c52c5fdd25cf5e0b44b9bd8e
commit: 325ba852d148434c5bcb06d513af1933a7f77b70 drm/i2c: move TDA998x driver under drivers/gpu/drm/bridge
date: 11 months ago
:::::: branch date: 6 hours ago
:::::: commit date: 11 months ago
config: x86_64-randconfig-101-20260112 (https://download.01.org/0day-ci/archive/20260116/202601160953.fqCvAT5T-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Reported-by: Julia Lawall <julia.lawall@inria.fr>
| Closes: https://lore.kernel.org/r/202601160953.fqCvAT5T-lkp@intel.com/
cocci warnings: (new ones prefixed by >>)
>> drivers/gpu/drm/bridge/tda998x_drv.c:1883:8-28: WARNING: Threaded IRQ with no primary handler requested without IRQF_ONESHOT (unless it is nested IRQ)
vim +1883 drivers/gpu/drm/bridge/tda998x_drv.c
76767fdabadbea drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1773
2143adb04b357e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1774 static int tda998x_create(struct device *dev)
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1775 {
2143adb04b357e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1776 struct i2c_client *client = to_i2c_client(dev);
0d44ea190387e2 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1777 struct device_node *np = client->dev.of_node;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1778 struct i2c_board_info cec_info;
2143adb04b357e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1779 struct tda998x_priv *priv;
0d44ea190387e2 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1780 u32 video;
fb7544d7732f78 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2014-02-02 1781 int rev_lo, rev_hi, ret;
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1782
2143adb04b357e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1783 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
2143adb04b357e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1784 if (!priv)
2143adb04b357e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1785 return -ENOMEM;
2143adb04b357e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1786
2143adb04b357e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1787 dev_set_drvdata(dev, priv);
2143adb04b357e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1788
d93ae190e2c952 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1789 mutex_init(&priv->mutex); /* protect the page access */
d93ae190e2c952 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1790 mutex_init(&priv->audio_mutex); /* protect access from audio thread */
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1791 mutex_init(&priv->edid_mutex);
30bd8b862f5466 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1792 INIT_LIST_HEAD(&priv->bridge.list);
d93ae190e2c952 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1793 init_waitqueue_head(&priv->edid_delay_waitq);
d93ae190e2c952 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1794 timer_setup(&priv->edid_delay_timer, tda998x_edid_delay_done, 0);
d93ae190e2c952 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1795 INIT_WORK(&priv->detect_work, tda998x_detect_work);
ba300c1787f793 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1796
5e74c22cd1e0f9 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2013-08-14 1797 priv->vip_cntrl_0 = VIP_CNTRL_0_SWAP_A(2) | VIP_CNTRL_0_SWAP_B(3);
5e74c22cd1e0f9 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2013-08-14 1798 priv->vip_cntrl_1 = VIP_CNTRL_1_SWAP_C(0) | VIP_CNTRL_1_SWAP_D(1);
5e74c22cd1e0f9 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2013-08-14 1799 priv->vip_cntrl_2 = VIP_CNTRL_2_SWAP_E(4) | VIP_CNTRL_2_SWAP_F(5);
5e74c22cd1e0f9 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2013-08-14 1800
14e5b5889d7589 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-03 1801 /* CEC I2C address bound to TDA998x I2C addr by configuration pins */
14e5b5889d7589 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-03 1802 priv->cec_addr = 0x34 + (client->addr & 0x03);
2eb4c7b1e7f275 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1803 priv->current_page = 0xff;
2f7f730a4f0fd3 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1804 priv->hdmi = client;
ed9a84262a83ab drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-11-29 1805
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1806 /* wake up the device: */
2f7f730a4f0fd3 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1807 cec_write(priv, REG_CEC_ENAMODS,
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1808 CEC_ENAMODS_EN_RXSENS | CEC_ENAMODS_EN_HDMI);
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1809
2f7f730a4f0fd3 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1810 tda998x_reset(priv);
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1811
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1812 /* read version: */
fb7544d7732f78 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2014-02-02 1813 rev_lo = reg_read(priv, REG_VERSION_LSB);
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1814 if (rev_lo < 0) {
76767fdabadbea drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1815 dev_err(dev, "failed to read version: %d\n", rev_lo);
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1816 return rev_lo;
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1817 }
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1818
fb7544d7732f78 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2014-02-02 1819 rev_hi = reg_read(priv, REG_VERSION_MSB);
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1820 if (rev_hi < 0) {
76767fdabadbea drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1821 dev_err(dev, "failed to read version: %d\n", rev_hi);
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1822 return rev_hi;
fb7544d7732f78 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2014-02-02 1823 }
fb7544d7732f78 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2014-02-02 1824
fb7544d7732f78 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2014-02-02 1825 priv->rev = rev_lo | rev_hi << 8;
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1826
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1827 /* mask off feature bits: */
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1828 priv->rev &= ~0x30; /* not-hdcp and not-scalar bit */
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1829
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1830 switch (priv->rev) {
b728fab7026b9d drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1831 case TDA9989N2:
76767fdabadbea drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1832 dev_info(dev, "found TDA9989 n2");
b728fab7026b9d drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1833 break;
b728fab7026b9d drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1834 case TDA19989:
76767fdabadbea drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1835 dev_info(dev, "found TDA19989");
b728fab7026b9d drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1836 break;
b728fab7026b9d drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1837 case TDA19989N2:
76767fdabadbea drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1838 dev_info(dev, "found TDA19989 n2");
b728fab7026b9d drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1839 break;
b728fab7026b9d drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1840 case TDA19988:
76767fdabadbea drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1841 dev_info(dev, "found TDA19988");
b728fab7026b9d drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1842 break;
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1843 default:
76767fdabadbea drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1844 dev_err(dev, "found unsupported device: %04x\n", priv->rev);
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1845 return -ENXIO;
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1846 }
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1847
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1848 /* after reset, enable DDC: */
2f7f730a4f0fd3 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1849 reg_write(priv, REG_DDC_DISABLE, 0x00);
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1850
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1851 /* set clock on DDC channel: */
2f7f730a4f0fd3 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1852 reg_write(priv, REG_TX3, 39);
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1853
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1854 /* if necessary, disable multi-master: */
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1855 if (priv->rev == TDA19989)
2f7f730a4f0fd3 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1856 reg_set(priv, REG_I2C_MASTER, I2C_MASTER_DIS_MM);
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1857
2f7f730a4f0fd3 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1858 cec_write(priv, REG_CEC_FRO_IM_CLK_CTRL,
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1859 CEC_FRO_IM_CLK_CTRL_GHOST_DIS | CEC_FRO_IM_CLK_CTRL_IMCLK_SEL);
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1860
ba8975f15bb93d drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2017-03-11 1861 /* ensure interrupts are disabled */
ba8975f15bb93d drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2017-03-11 1862 cec_write(priv, REG_CEC_RXSHPDINTENA, 0);
ba8975f15bb93d drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2017-03-11 1863
ba8975f15bb93d drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2017-03-11 1864 /* clear pending interrupts */
ba8975f15bb93d drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2017-03-11 1865 cec_read(priv, REG_CEC_RXSHPDINT);
ba8975f15bb93d drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2017-03-11 1866 reg_read(priv, REG_INT_FLAGS_0);
ba8975f15bb93d drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2017-03-11 1867 reg_read(priv, REG_INT_FLAGS_1);
ba8975f15bb93d drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2017-03-11 1868 reg_read(priv, REG_INT_FLAGS_2);
ba8975f15bb93d drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2017-03-11 1869
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1870 /* initialize the optional IRQ */
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1871 if (client->irq) {
ae81553c30ef86 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-03 1872 unsigned long irq_flags;
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1873
6833d26ef823b2 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-11-29 1874 /* init read EDID waitqueue and HDP work */
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1875 init_waitqueue_head(&priv->wq_edid);
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1876
ae81553c30ef86 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-03 1877 irq_flags =
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1878 irqd_get_trigger_type(irq_get_irq_data(client->irq));
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1879
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1880 priv->cec_glue.irq_flags = irq_flags;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1881
ae81553c30ef86 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-03 1882 irq_flags |= IRQF_SHARED | IRQF_ONESHOT;
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 @1883 ret = request_threaded_irq(client->irq, NULL,
ae81553c30ef86 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-03 1884 tda998x_irq_thread, irq_flags,
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1885 "tda998x", priv);
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1886 if (ret) {
76767fdabadbea drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1887 dev_err(dev, "failed to request IRQ#%u: %d\n",
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1888 client->irq, ret);
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1889 goto err_irq;
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1890 }
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1891
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1892 /* enable HPD irq */
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1893 cec_write(priv, REG_CEC_RXSHPDINTENA, CEC_RXSHPDLEV_HPD);
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1894 }
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1895
ece485d550dce2 drivers/gpu/drm/i2c/tda998x_drv.c Dariusz Marcinkiewicz 2019-10-17 1896 priv->cec_notify = cec_notifier_conn_register(dev, NULL, NULL);
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1897 if (!priv->cec_notify) {
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1898 ret = -ENOMEM;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1899 goto fail;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1900 }
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1901
76767fdabadbea drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1902 priv->cec_glue.parent = dev;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1903 priv->cec_glue.data = priv;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1904 priv->cec_glue.init = tda998x_cec_hook_init;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1905 priv->cec_glue.exit = tda998x_cec_hook_exit;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1906 priv->cec_glue.open = tda998x_cec_hook_open;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1907 priv->cec_glue.release = tda998x_cec_hook_release;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1908
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1909 /*
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1910 * Some TDA998x are actually two I2C devices merged onto one piece
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1911 * of silicon: TDA9989 and TDA19989 combine the HDMI transmitter
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1912 * with a slightly modified TDA9950 CEC device. The CEC device
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1913 * is at the TDA9950 address, with the address pins strapped across
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1914 * to the TDA998x address pins. Hence, it always has the same
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1915 * offset.
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1916 */
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1917 memset(&cec_info, 0, sizeof(cec_info));
f4a0659f823e5a drivers/gpu/drm/i2c/tda998x_drv.c Azeem Shaikh 2023-05-22 1918 strscpy(cec_info.type, "tda9950", sizeof(cec_info.type));
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1919 cec_info.addr = priv->cec_addr;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1920 cec_info.platform_data = &priv->cec_glue;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1921 cec_info.irq = client->irq;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1922
bf2993c19b00af drivers/gpu/drm/i2c/tda998x_drv.c Wolfram Sang 2020-03-26 1923 priv->cec = i2c_new_client_device(client->adapter, &cec_info);
bf2993c19b00af drivers/gpu/drm/i2c/tda998x_drv.c Wolfram Sang 2020-03-26 1924 if (IS_ERR(priv->cec)) {
bf2993c19b00af drivers/gpu/drm/i2c/tda998x_drv.c Wolfram Sang 2020-03-26 1925 ret = PTR_ERR(priv->cec);
101e996b8d3215 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1926 goto fail;
101e996b8d3215 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1927 }
101e996b8d3215 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1928
e47826274e8871 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1929 /* enable EDID read irq: */
e47826274e8871 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1930 reg_set(priv, REG_INT_FLAGS_2, INT_FLAGS_2_EDID_BLK_RD);
e47826274e8871 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1931
6c1187aaa2912f drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1932 if (np) {
7e567624dc5a44 drivers/gpu/drm/i2c/tda998x_drv.c Jyri Sarha 2016-08-09 1933 /* get the device tree parameters */
0d44ea190387e2 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1934 ret = of_property_read_u32(np, "video-ports", &video);
0d44ea190387e2 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1935 if (ret == 0) {
0d44ea190387e2 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1936 priv->vip_cntrl_0 = video >> 16;
0d44ea190387e2 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1937 priv->vip_cntrl_1 = video >> 8;
0d44ea190387e2 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1938 priv->vip_cntrl_2 = video;
0d44ea190387e2 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1939 }
0d44ea190387e2 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1940
7e567624dc5a44 drivers/gpu/drm/i2c/tda998x_drv.c Jyri Sarha 2016-08-09 1941 ret = tda998x_get_audio_ports(priv, np);
7e567624dc5a44 drivers/gpu/drm/i2c/tda998x_drv.c Jyri Sarha 2016-08-09 1942 if (ret)
7e567624dc5a44 drivers/gpu/drm/i2c/tda998x_drv.c Jyri Sarha 2016-08-09 1943 goto fail;
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1944
7168916072b549 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2019-03-01 1945 if (priv->audio_port_enable[AUDIO_ROUTE_I2S] ||
7168916072b549 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2019-03-01 1946 priv->audio_port_enable[AUDIO_ROUTE_SPDIF])
7e567624dc5a44 drivers/gpu/drm/i2c/tda998x_drv.c Jyri Sarha 2016-08-09 1947 tda998x_audio_codec_init(priv, &client->dev);
6c1187aaa2912f drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1948 }
7e567624dc5a44 drivers/gpu/drm/i2c/tda998x_drv.c Jyri Sarha 2016-08-09 1949
30bd8b862f5466 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1950 priv->bridge.funcs = &tda998x_bridge_funcs;
30bd8b862f5466 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1951 #ifdef CONFIG_OF
30bd8b862f5466 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1952 priv->bridge.of_node = dev->of_node;
30bd8b862f5466 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1953 #endif
30bd8b862f5466 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1954
30bd8b862f5466 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1955 drm_bridge_add(&priv->bridge);
7e567624dc5a44 drivers/gpu/drm/i2c/tda998x_drv.c Jyri Sarha 2016-08-09 1956
7e567624dc5a44 drivers/gpu/drm/i2c/tda998x_drv.c Jyri Sarha 2016-08-09 1957 return 0;
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1958
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1959 fail:
2143adb04b357e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1960 tda998x_destroy(dev);
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1961 err_irq:
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1962 return ret;
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1963 }
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1964
:::::: The code at line 1883 was first introduced by commit
:::::: 12473b7d8e6074c7d4c2816afa6027354ce9a502 drm/i2c: tda998x: use irq for connection status and EDID read
:::::: TO: Jean-Francois Moine <moinejf@free.fr>
:::::: CC: Russell King <rmk+kernel@arm.linux.org.uk>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 3+ messages in thread
* drivers/gpu/drm/bridge/tda998x_drv.c:1883:8-28: WARNING: Threaded IRQ with no primary handler requested without IRQF_ONESHOT (unless it is nested IRQ)
@ 2026-03-24 7:28 kernel test robot
0 siblings, 0 replies; 3+ messages in thread
From: kernel test robot @ 2026-03-24 7:28 UTC (permalink / raw)
To: oe-kbuild; +Cc: lkp, Julia Lawall
BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
CC: linux-kernel@vger.kernel.org
TO: Dmitry Baryshkov <lumag@kernel.org>
CC: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: c369299895a591d96745d6492d4888259b004a9e
commit: 325ba852d148434c5bcb06d513af1933a7f77b70 drm/i2c: move TDA998x driver under drivers/gpu/drm/bridge
date: 1 year, 1 month ago
:::::: branch date: 34 hours ago
:::::: commit date: 1 year, 1 month ago
config: s390-randconfig-r052-20260323 (https://download.01.org/0day-ci/archive/20260324/202603241527.fX06FemQ-lkp@intel.com/config)
compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project c911b8492374942bf4cfe35411e90a35d3837f6a)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Reported-by: Julia Lawall <julia.lawall@inria.fr>
| Closes: https://lore.kernel.org/r/202603241527.fX06FemQ-lkp@intel.com/
cocci warnings: (new ones prefixed by >>)
>> drivers/gpu/drm/bridge/tda998x_drv.c:1883:8-28: WARNING: Threaded IRQ with no primary handler requested without IRQF_ONESHOT (unless it is nested IRQ)
vim +1883 drivers/gpu/drm/bridge/tda998x_drv.c
76767fdabadbea drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1773
2143adb04b357e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1774 static int tda998x_create(struct device *dev)
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1775 {
2143adb04b357e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1776 struct i2c_client *client = to_i2c_client(dev);
0d44ea190387e2 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1777 struct device_node *np = client->dev.of_node;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1778 struct i2c_board_info cec_info;
2143adb04b357e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1779 struct tda998x_priv *priv;
0d44ea190387e2 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1780 u32 video;
fb7544d7732f78 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2014-02-02 1781 int rev_lo, rev_hi, ret;
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1782
2143adb04b357e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1783 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
2143adb04b357e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1784 if (!priv)
2143adb04b357e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1785 return -ENOMEM;
2143adb04b357e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1786
2143adb04b357e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1787 dev_set_drvdata(dev, priv);
2143adb04b357e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1788
d93ae190e2c952 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1789 mutex_init(&priv->mutex); /* protect the page access */
d93ae190e2c952 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1790 mutex_init(&priv->audio_mutex); /* protect access from audio thread */
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1791 mutex_init(&priv->edid_mutex);
30bd8b862f5466 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1792 INIT_LIST_HEAD(&priv->bridge.list);
d93ae190e2c952 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1793 init_waitqueue_head(&priv->edid_delay_waitq);
d93ae190e2c952 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1794 timer_setup(&priv->edid_delay_timer, tda998x_edid_delay_done, 0);
d93ae190e2c952 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1795 INIT_WORK(&priv->detect_work, tda998x_detect_work);
ba300c1787f793 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1796
5e74c22cd1e0f9 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2013-08-14 1797 priv->vip_cntrl_0 = VIP_CNTRL_0_SWAP_A(2) | VIP_CNTRL_0_SWAP_B(3);
5e74c22cd1e0f9 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2013-08-14 1798 priv->vip_cntrl_1 = VIP_CNTRL_1_SWAP_C(0) | VIP_CNTRL_1_SWAP_D(1);
5e74c22cd1e0f9 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2013-08-14 1799 priv->vip_cntrl_2 = VIP_CNTRL_2_SWAP_E(4) | VIP_CNTRL_2_SWAP_F(5);
5e74c22cd1e0f9 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2013-08-14 1800
14e5b5889d7589 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-03 1801 /* CEC I2C address bound to TDA998x I2C addr by configuration pins */
14e5b5889d7589 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-03 1802 priv->cec_addr = 0x34 + (client->addr & 0x03);
2eb4c7b1e7f275 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1803 priv->current_page = 0xff;
2f7f730a4f0fd3 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1804 priv->hdmi = client;
ed9a84262a83ab drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-11-29 1805
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1806 /* wake up the device: */
2f7f730a4f0fd3 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1807 cec_write(priv, REG_CEC_ENAMODS,
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1808 CEC_ENAMODS_EN_RXSENS | CEC_ENAMODS_EN_HDMI);
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1809
2f7f730a4f0fd3 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1810 tda998x_reset(priv);
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1811
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1812 /* read version: */
fb7544d7732f78 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2014-02-02 1813 rev_lo = reg_read(priv, REG_VERSION_LSB);
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1814 if (rev_lo < 0) {
76767fdabadbea drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1815 dev_err(dev, "failed to read version: %d\n", rev_lo);
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1816 return rev_lo;
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1817 }
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1818
fb7544d7732f78 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2014-02-02 1819 rev_hi = reg_read(priv, REG_VERSION_MSB);
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1820 if (rev_hi < 0) {
76767fdabadbea drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1821 dev_err(dev, "failed to read version: %d\n", rev_hi);
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1822 return rev_hi;
fb7544d7732f78 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2014-02-02 1823 }
fb7544d7732f78 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2014-02-02 1824
fb7544d7732f78 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2014-02-02 1825 priv->rev = rev_lo | rev_hi << 8;
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1826
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1827 /* mask off feature bits: */
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1828 priv->rev &= ~0x30; /* not-hdcp and not-scalar bit */
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1829
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1830 switch (priv->rev) {
b728fab7026b9d drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1831 case TDA9989N2:
76767fdabadbea drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1832 dev_info(dev, "found TDA9989 n2");
b728fab7026b9d drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1833 break;
b728fab7026b9d drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1834 case TDA19989:
76767fdabadbea drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1835 dev_info(dev, "found TDA19989");
b728fab7026b9d drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1836 break;
b728fab7026b9d drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1837 case TDA19989N2:
76767fdabadbea drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1838 dev_info(dev, "found TDA19989 n2");
b728fab7026b9d drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1839 break;
b728fab7026b9d drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1840 case TDA19988:
76767fdabadbea drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1841 dev_info(dev, "found TDA19988");
b728fab7026b9d drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1842 break;
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1843 default:
76767fdabadbea drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1844 dev_err(dev, "found unsupported device: %04x\n", priv->rev);
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1845 return -ENXIO;
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1846 }
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1847
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1848 /* after reset, enable DDC: */
2f7f730a4f0fd3 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1849 reg_write(priv, REG_DDC_DISABLE, 0x00);
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1850
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1851 /* set clock on DDC channel: */
2f7f730a4f0fd3 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1852 reg_write(priv, REG_TX3, 39);
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1853
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1854 /* if necessary, disable multi-master: */
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1855 if (priv->rev == TDA19989)
2f7f730a4f0fd3 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1856 reg_set(priv, REG_I2C_MASTER, I2C_MASTER_DIS_MM);
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1857
2f7f730a4f0fd3 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1858 cec_write(priv, REG_CEC_FRO_IM_CLK_CTRL,
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1859 CEC_FRO_IM_CLK_CTRL_GHOST_DIS | CEC_FRO_IM_CLK_CTRL_IMCLK_SEL);
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1860
ba8975f15bb93d drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2017-03-11 1861 /* ensure interrupts are disabled */
ba8975f15bb93d drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2017-03-11 1862 cec_write(priv, REG_CEC_RXSHPDINTENA, 0);
ba8975f15bb93d drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2017-03-11 1863
ba8975f15bb93d drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2017-03-11 1864 /* clear pending interrupts */
ba8975f15bb93d drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2017-03-11 1865 cec_read(priv, REG_CEC_RXSHPDINT);
ba8975f15bb93d drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2017-03-11 1866 reg_read(priv, REG_INT_FLAGS_0);
ba8975f15bb93d drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2017-03-11 1867 reg_read(priv, REG_INT_FLAGS_1);
ba8975f15bb93d drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2017-03-11 1868 reg_read(priv, REG_INT_FLAGS_2);
ba8975f15bb93d drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2017-03-11 1869
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1870 /* initialize the optional IRQ */
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1871 if (client->irq) {
ae81553c30ef86 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-03 1872 unsigned long irq_flags;
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1873
6833d26ef823b2 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-11-29 1874 /* init read EDID waitqueue and HDP work */
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1875 init_waitqueue_head(&priv->wq_edid);
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1876
ae81553c30ef86 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-03 1877 irq_flags =
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1878 irqd_get_trigger_type(irq_get_irq_data(client->irq));
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1879
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1880 priv->cec_glue.irq_flags = irq_flags;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1881
ae81553c30ef86 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-03 1882 irq_flags |= IRQF_SHARED | IRQF_ONESHOT;
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 @1883 ret = request_threaded_irq(client->irq, NULL,
ae81553c30ef86 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-03 1884 tda998x_irq_thread, irq_flags,
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1885 "tda998x", priv);
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1886 if (ret) {
76767fdabadbea drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1887 dev_err(dev, "failed to request IRQ#%u: %d\n",
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1888 client->irq, ret);
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1889 goto err_irq;
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1890 }
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1891
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1892 /* enable HPD irq */
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1893 cec_write(priv, REG_CEC_RXSHPDINTENA, CEC_RXSHPDLEV_HPD);
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1894 }
12473b7d8e6074 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1895
ece485d550dce2 drivers/gpu/drm/i2c/tda998x_drv.c Dariusz Marcinkiewicz 2019-10-17 1896 priv->cec_notify = cec_notifier_conn_register(dev, NULL, NULL);
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1897 if (!priv->cec_notify) {
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1898 ret = -ENOMEM;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1899 goto fail;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1900 }
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1901
76767fdabadbea drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1902 priv->cec_glue.parent = dev;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1903 priv->cec_glue.data = priv;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1904 priv->cec_glue.init = tda998x_cec_hook_init;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1905 priv->cec_glue.exit = tda998x_cec_hook_exit;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1906 priv->cec_glue.open = tda998x_cec_hook_open;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1907 priv->cec_glue.release = tda998x_cec_hook_release;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1908
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1909 /*
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1910 * Some TDA998x are actually two I2C devices merged onto one piece
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1911 * of silicon: TDA9989 and TDA19989 combine the HDMI transmitter
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1912 * with a slightly modified TDA9950 CEC device. The CEC device
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1913 * is at the TDA9950 address, with the address pins strapped across
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1914 * to the TDA998x address pins. Hence, it always has the same
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1915 * offset.
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1916 */
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1917 memset(&cec_info, 0, sizeof(cec_info));
f4a0659f823e5a drivers/gpu/drm/i2c/tda998x_drv.c Azeem Shaikh 2023-05-22 1918 strscpy(cec_info.type, "tda9950", sizeof(cec_info.type));
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1919 cec_info.addr = priv->cec_addr;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1920 cec_info.platform_data = &priv->cec_glue;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1921 cec_info.irq = client->irq;
7e8675f000bc7e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-05 1922
bf2993c19b00af drivers/gpu/drm/i2c/tda998x_drv.c Wolfram Sang 2020-03-26 1923 priv->cec = i2c_new_client_device(client->adapter, &cec_info);
bf2993c19b00af drivers/gpu/drm/i2c/tda998x_drv.c Wolfram Sang 2020-03-26 1924 if (IS_ERR(priv->cec)) {
bf2993c19b00af drivers/gpu/drm/i2c/tda998x_drv.c Wolfram Sang 2020-03-26 1925 ret = PTR_ERR(priv->cec);
101e996b8d3215 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1926 goto fail;
101e996b8d3215 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1927 }
101e996b8d3215 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1928
e47826274e8871 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1929 /* enable EDID read irq: */
e47826274e8871 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1930 reg_set(priv, REG_INT_FLAGS_2, INT_FLAGS_2_EDID_BLK_RD);
e47826274e8871 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1931
6c1187aaa2912f drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1932 if (np) {
7e567624dc5a44 drivers/gpu/drm/i2c/tda998x_drv.c Jyri Sarha 2016-08-09 1933 /* get the device tree parameters */
0d44ea190387e2 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1934 ret = of_property_read_u32(np, "video-ports", &video);
0d44ea190387e2 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1935 if (ret == 0) {
0d44ea190387e2 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1936 priv->vip_cntrl_0 = video >> 16;
0d44ea190387e2 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1937 priv->vip_cntrl_1 = video >> 8;
0d44ea190387e2 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1938 priv->vip_cntrl_2 = video;
0d44ea190387e2 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1939 }
0d44ea190387e2 drivers/gpu/drm/i2c/tda998x_drv.c Jean-Francois Moine 2014-01-25 1940
7e567624dc5a44 drivers/gpu/drm/i2c/tda998x_drv.c Jyri Sarha 2016-08-09 1941 ret = tda998x_get_audio_ports(priv, np);
7e567624dc5a44 drivers/gpu/drm/i2c/tda998x_drv.c Jyri Sarha 2016-08-09 1942 if (ret)
7e567624dc5a44 drivers/gpu/drm/i2c/tda998x_drv.c Jyri Sarha 2016-08-09 1943 goto fail;
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1944
7168916072b549 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2019-03-01 1945 if (priv->audio_port_enable[AUDIO_ROUTE_I2S] ||
7168916072b549 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2019-03-01 1946 priv->audio_port_enable[AUDIO_ROUTE_SPDIF])
7e567624dc5a44 drivers/gpu/drm/i2c/tda998x_drv.c Jyri Sarha 2016-08-09 1947 tda998x_audio_codec_init(priv, &client->dev);
6c1187aaa2912f drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1948 }
7e567624dc5a44 drivers/gpu/drm/i2c/tda998x_drv.c Jyri Sarha 2016-08-09 1949
30bd8b862f5466 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1950 priv->bridge.funcs = &tda998x_bridge_funcs;
30bd8b862f5466 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1951 #ifdef CONFIG_OF
30bd8b862f5466 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1952 priv->bridge.of_node = dev->of_node;
30bd8b862f5466 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1953 #endif
30bd8b862f5466 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1954
30bd8b862f5466 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1955 drm_bridge_add(&priv->bridge);
7e567624dc5a44 drivers/gpu/drm/i2c/tda998x_drv.c Jyri Sarha 2016-08-09 1956
7e567624dc5a44 drivers/gpu/drm/i2c/tda998x_drv.c Jyri Sarha 2016-08-09 1957 return 0;
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1958
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1959 fail:
2143adb04b357e drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2018-08-02 1960 tda998x_destroy(dev);
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1961 err_irq:
6a765c3fe54973 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-11-17 1962 return ret;
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1963 }
e7792ce2da5ded drivers/gpu/drm/i2c/tda998x_drv.c Rob Clark 2013-01-08 1964
:::::: The code at line 1883 was first introduced by commit
:::::: 12473b7d8e6074c7d4c2816afa6027354ce9a502 drm/i2c: tda998x: use irq for connection status and EDID read
:::::: TO: Jean-Francois Moine <moinejf@free.fr>
:::::: CC: Russell King <rmk+kernel@arm.linux.org.uk>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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2026-01-16 1:53 drivers/gpu/drm/bridge/tda998x_drv.c:1883:8-28: WARNING: Threaded IRQ with no primary handler requested without IRQF_ONESHOT (unless it is nested IRQ) kernel test robot
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