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@xxxxxxxxx>
Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
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 }
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