tree: git://anongit.freedesktop.org/drm-intel drm-intel-next-queued head: 53448aed7b805cf36ecc59ed5fe8e53815ce4fe8 commit: 53448aed7b805cf36ecc59ed5fe8e53815ce4fe8 [1/1] drm/i915/ehl: Port C's hotplug interrupt is associated with TC1 bits If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp(a)intel.com&gt; Reported-by: Dan Carpenter <dan.carpenter(a)oracle.com&gt; smatch warnings: drivers/gpu/drm/i915/i915_irq.c:2283 icp_irq_handler() error: uninitialized symbol 'tc_port_hotplug_long_detect'. git remote add drm-intel git://anongit.freedesktop.org/drm-intel git remote update drm-intel git checkout 53448aed7b805cf36ecc59ed5fe8e53815ce4fe8 vim +/tc_port_hotplug_long_detect +2283 drivers/gpu/drm/i915/i915_irq.c 58676af69c2eb1 Lucas De Marchi 2019-08-29 2239 static void icp_irq_handler(struct drm_i915_private *dev_priv, u32 pch_iir) 3160422251b214 Anusha Srivatsa 2018-06-26 2240 { 58676af69c2eb1 Lucas De Marchi 2019-08-29 2241 u32 ddi_hotplug_trigger, tc_hotplug_trigger; 3160422251b214 Anusha Srivatsa 2018-06-26 2242 u32 pin_mask = 0, long_mask = 0; 58676af69c2eb1 Lucas De Marchi 2019-08-29 2243 bool (*tc_port_hotplug_long_detect)(enum hpd_pin pin, u32 val); 58676af69c2eb1 Lucas De Marchi 2019-08-29 2244 const u32 *pins; 3160422251b214 Anusha Srivatsa 2018-06-26 2245 58676af69c2eb1 Lucas De Marchi 2019-08-29 2246 if (HAS_PCH_TGP(dev_priv)) { 58676af69c2eb1 Lucas De Marchi 2019-08-29 2247 ddi_hotplug_trigger = pch_iir & SDE_DDI_MASK_TGP; 58676af69c2eb1 Lucas De Marchi 2019-08-29 2248 tc_hotplug_trigger = pch_iir & SDE_TC_MASK_TGP; 58676af69c2eb1 Lucas De Marchi 2019-08-29 2249 tc_port_hotplug_long_detect = tgp_tc_port_hotplug_long_detect; 58676af69c2eb1 Lucas De Marchi 2019-08-29 2250 pins = hpd_tgp; 58676af69c2eb1 Lucas De Marchi 2019-08-29 2251 } else if (HAS_PCH_MCC(dev_priv)) { 53448aed7b805c Vivek Kasireddy 2019-10-10 2252 ddi_hotplug_trigger = pch_iir & SDE_DDI_MASK_ICP; 53448aed7b805c Vivek Kasireddy 2019-10-10 2253 tc_hotplug_trigger = pch_iir & SDE_TC_HOTPLUG_ICP(PORT_TC1); tc_port_hotplug_long_detect needs to be set here. d09ad3e7af3ab2 Matt Roper 2019-09-18 2254 pins = hpd_icp; 8ef7e3409cecce Matt Roper 2019-07-30 2255 } else { 8ef7e3409cecce Matt Roper 2019-07-30 2256 ddi_hotplug_trigger = pch_iir & SDE_DDI_MASK_ICP; 8ef7e3409cecce Matt Roper 2019-07-30 2257 tc_hotplug_trigger = pch_iir & SDE_TC_MASK_ICP; 58676af69c2eb1 Lucas De Marchi 2019-08-29 2258 tc_port_hotplug_long_detect = icp_tc_port_hotplug_long_detect; 58676af69c2eb1 Lucas De Marchi 2019-08-29 2259 pins = hpd_icp; 8ef7e3409cecce Matt Roper 2019-07-30 2260 } 8ef7e3409cecce Matt Roper 2019-07-30 2261 3160422251b214 Anusha Srivatsa 2018-06-26 2262 if (ddi_hotplug_trigger) { 3160422251b214 Anusha Srivatsa 2018-06-26 2263 u32 dig_hotplug_reg; 3160422251b214 Anusha Srivatsa 2018-06-26 2264 3160422251b214 Anusha Srivatsa 2018-06-26 2265 dig_hotplug_reg = I915_READ(SHOTPLUG_CTL_DDI); 3160422251b214 Anusha Srivatsa 2018-06-26 2266 I915_WRITE(SHOTPLUG_CTL_DDI, dig_hotplug_reg); 3160422251b214 Anusha Srivatsa 2018-06-26 2267 3160422251b214 Anusha Srivatsa 2018-06-26 2268 intel_get_hpd_pins(dev_priv, &pin_mask, &long_mask, 3160422251b214 Anusha Srivatsa 2018-06-26 2269 ddi_hotplug_trigger, c6f7acb80abf5f Matt Roper 2019-06-14 2270 dig_hotplug_reg, pins, 3160422251b214 Anusha Srivatsa 2018-06-26 2271 icp_ddi_port_hotplug_long_detect); 3160422251b214 Anusha Srivatsa 2018-06-26 2272 } 3160422251b214 Anusha Srivatsa 2018-06-26 2273 3160422251b214 Anusha Srivatsa 2018-06-26 2274 if (tc_hotplug_trigger) { 3160422251b214 Anusha Srivatsa 2018-06-26 2275 u32 dig_hotplug_reg; 3160422251b214 Anusha Srivatsa 2018-06-26 2276 3160422251b214 Anusha Srivatsa 2018-06-26 2277 dig_hotplug_reg = I915_READ(SHOTPLUG_CTL_TC); 3160422251b214 Anusha Srivatsa 2018-06-26 2278 I915_WRITE(SHOTPLUG_CTL_TC, dig_hotplug_reg); 3160422251b214 Anusha Srivatsa 2018-06-26 2279 3160422251b214 Anusha Srivatsa 2018-06-26 2280 intel_get_hpd_pins(dev_priv, &pin_mask, &long_mask, 3160422251b214 Anusha Srivatsa 2018-06-26 2281 tc_hotplug_trigger, c6f7acb80abf5f Matt Roper 2019-06-14 2282 dig_hotplug_reg, pins, 58676af69c2eb1 Lucas De Marchi 2019-08-29 @2283 tc_port_hotplug_long_detect); 52dfdba0a98768 Lucas De Marchi 2019-07-25 2284 } 52dfdba0a98768 Lucas De Marchi 2019-07-25 2285 52dfdba0a98768 Lucas De Marchi 2019-07-25 2286 if (pin_mask) 52dfdba0a98768 Lucas De Marchi 2019-07-25 2287 intel_hpd_irq_handler(dev_priv, pin_mask, long_mask); 52dfdba0a98768 Lucas De Marchi 2019-07-25 2288 52dfdba0a98768 Lucas De Marchi 2019-07-25 2289 if (pch_iir & SDE_GMBUS_ICP) 52dfdba0a98768 Lucas De Marchi 2019-07-25 2290 gmbus_irq_handler(dev_priv); 52dfdba0a98768 Lucas De Marchi 2019-07-25 2291 } --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation