Hi Maxime, I love your patch! Yet something to improve:
[auto build test ERROR on drm-tip/drm-tip] [also build test ERROR on drm-intel/for-linux-next next-20210707] [cannot apply to anholt/for-next v5.13] [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] url: https://github.com/0day-ci/linux/commits/Maxime-Ripard/drm-vc4-hdmi-Fix-CEC-access-while-disabled/20210707-172621 base: git://anongit.freedesktop.org/drm/drm-tip drm-tip config: nios2-allyesconfig (attached as .config) compiler: nios2-linux-gcc (GCC) 9.3.0 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/0day-ci/linux/commit/4342e12ac48418ce6366423771e887fa9fff89eb git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Maxime-Ripard/drm-vc4-hdmi-Fix-CEC-access-while-disabled/20210707-172621 git checkout 4342e12ac48418ce6366423771e887fa9fff89eb # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=nios2 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> All errors (new ones prefixed by >>): drivers/gpu/drm/vc4/vc4_hdmi.c: In function 'vc4_hdmi_bind': >> drivers/gpu/drm/vc4/vc4_hdmi.c:2178:8: error: implicit declaration of >> function 'vc4_hdmi_runtime_resume'; did you mean 'pm_runtime_resume'? >> [-Werror=implicit-function-declaration] 2178 | ret = vc4_hdmi_runtime_resume(dev); | ^~~~~~~~~~~~~~~~~~~~~~~ | pm_runtime_resume At top level: drivers/gpu/drm/vc4/vc4_hdmi.c:1402:46: warning: 'vc4_hdmi_audio_component_drv' defined but not used [-Wunused-const-variable=] 1402 | static const struct snd_soc_component_driver vc4_hdmi_audio_component_drv = { | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +2178 drivers/gpu/drm/vc4/vc4_hdmi.c 2110 2111 static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data) 2112 { 2113 const struct vc4_hdmi_variant *variant = of_device_get_match_data(dev); 2114 struct platform_device *pdev = to_platform_device(dev); 2115 struct drm_device *drm = dev_get_drvdata(master); 2116 struct vc4_hdmi *vc4_hdmi; 2117 struct drm_encoder *encoder; 2118 struct device_node *ddc_node; 2119 int ret; 2120 2121 vc4_hdmi = devm_kzalloc(dev, sizeof(*vc4_hdmi), GFP_KERNEL); 2122 if (!vc4_hdmi) 2123 return -ENOMEM; 2124 INIT_DELAYED_WORK(&vc4_hdmi->scrambling_work, vc4_hdmi_scrambling_wq); 2125 2126 dev_set_drvdata(dev, vc4_hdmi); 2127 encoder = &vc4_hdmi->encoder.base.base; 2128 vc4_hdmi->encoder.base.type = variant->encoder_type; 2129 vc4_hdmi->encoder.base.pre_crtc_configure = vc4_hdmi_encoder_pre_crtc_configure; 2130 vc4_hdmi->encoder.base.pre_crtc_enable = vc4_hdmi_encoder_pre_crtc_enable; 2131 vc4_hdmi->encoder.base.post_crtc_enable = vc4_hdmi_encoder_post_crtc_enable; 2132 vc4_hdmi->encoder.base.post_crtc_disable = vc4_hdmi_encoder_post_crtc_disable; 2133 vc4_hdmi->encoder.base.post_crtc_powerdown = vc4_hdmi_encoder_post_crtc_powerdown; 2134 vc4_hdmi->pdev = pdev; 2135 vc4_hdmi->variant = variant; 2136 2137 ret = variant->init_resources(vc4_hdmi); 2138 if (ret) 2139 return ret; 2140 2141 ddc_node = of_parse_phandle(dev->of_node, "ddc", 0); 2142 if (!ddc_node) { 2143 DRM_ERROR("Failed to find ddc node in device tree\n"); 2144 return -ENODEV; 2145 } 2146 2147 vc4_hdmi->ddc = of_find_i2c_adapter_by_node(ddc_node); 2148 of_node_put(ddc_node); 2149 if (!vc4_hdmi->ddc) { 2150 DRM_DEBUG("Failed to get ddc i2c adapter by node\n"); 2151 return -EPROBE_DEFER; 2152 } 2153 2154 /* Only use the GPIO HPD pin if present in the DT, otherwise 2155 * we'll use the HDMI core's register. 2156 */ 2157 vc4_hdmi->hpd_gpio = devm_gpiod_get_optional(dev, "hpd", GPIOD_IN); 2158 if (IS_ERR(vc4_hdmi->hpd_gpio)) { 2159 ret = PTR_ERR(vc4_hdmi->hpd_gpio); 2160 goto err_put_ddc; 2161 } 2162 2163 vc4_hdmi->disable_wifi_frequencies = 2164 of_property_read_bool(dev->of_node, "wifi-2.4ghz-coexistence"); 2165 2166 if (variant->max_pixel_clock == 600000000) { 2167 struct vc4_dev *vc4 = to_vc4_dev(drm); 2168 long max_rate = clk_round_rate(vc4->hvs->core_clk, 550000000); 2169 2170 if (max_rate < 550000000) 2171 vc4_hdmi->disable_4kp60 = true; 2172 } 2173 2174 /* 2175 * We need to have the device powered up at this point to call 2176 * our reset hook and for the CEC init. 2177 */ > 2178 ret = vc4_hdmi_runtime_resume(dev); 2179 if (ret) 2180 goto err_put_ddc; 2181 2182 pm_runtime_get_noresume(dev); 2183 pm_runtime_set_active(dev); 2184 pm_runtime_enable(dev); 2185 2186 if (vc4_hdmi->variant->reset) 2187 vc4_hdmi->variant->reset(vc4_hdmi); 2188 2189 if ((of_device_is_compatible(dev->of_node, "brcm,bcm2711-hdmi0") || 2190 of_device_is_compatible(dev->of_node, "brcm,bcm2711-hdmi1")) && 2191 HDMI_READ(HDMI_VID_CTL) & VC4_HD_VID_CTL_ENABLE) { 2192 clk_prepare_enable(vc4_hdmi->pixel_clock); 2193 clk_prepare_enable(vc4_hdmi->hsm_clock); 2194 clk_prepare_enable(vc4_hdmi->pixel_bvb_clock); 2195 } 2196 2197 drm_simple_encoder_init(drm, encoder, DRM_MODE_ENCODER_TMDS); 2198 drm_encoder_helper_add(encoder, &vc4_hdmi_encoder_helper_funcs); 2199 2200 ret = vc4_hdmi_connector_init(drm, vc4_hdmi); 2201 if (ret) 2202 goto err_destroy_encoder; 2203 2204 ret = vc4_hdmi_hotplug_init(vc4_hdmi); 2205 if (ret) 2206 goto err_destroy_conn; 2207 2208 ret = vc4_hdmi_cec_init(vc4_hdmi); 2209 if (ret) 2210 goto err_destroy_conn; 2211 2212 ret = vc4_hdmi_audio_init(vc4_hdmi); 2213 if (ret) 2214 goto err_free_cec; 2215 2216 vc4_debugfs_add_file(drm, variant->debugfs_name, 2217 vc4_hdmi_debugfs_regs, 2218 vc4_hdmi); 2219 2220 pm_runtime_put_sync(dev); 2221 2222 return 0; 2223 2224 err_free_cec: 2225 vc4_hdmi_cec_exit(vc4_hdmi); 2226 err_destroy_conn: 2227 vc4_hdmi_connector_destroy(&vc4_hdmi->connector); 2228 err_destroy_encoder: 2229 drm_encoder_cleanup(encoder); 2230 pm_runtime_put_sync(dev); 2231 pm_runtime_disable(dev); 2232 err_put_ddc: 2233 put_device(&vc4_hdmi->ddc->dev); 2234 2235 return ret; 2236 } 2237 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
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