tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: d1d2220c7f39d0fca302c4ba6cca4ede01660a2b commit: b89c01c960511dcffe3666d89645c95445d00902 [7640/10763] cpufreq: tegra186: Fix initial frequency config: arm64-randconfig-s031-20200923 (attached as .config) compiler: aarch64-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.2-201-g24bdaac6-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commi... git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout b89c01c960511dcffe3666d89645c95445d00902 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) drivers/cpufreq/tegra186-cpufreq.c:72:37: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *driver_data @@ got void [noderef] __iomem * @@ drivers/cpufreq/tegra186-cpufreq.c:72:37: sparse: expected void *driver_data drivers/cpufreq/tegra186-cpufreq.c:72:37: sparse: got void [noderef] __iomem * drivers/cpufreq/tegra186-cpufreq.c:87:40: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void [noderef] __iomem *edvd_reg @@ got void *driver_data @@ drivers/cpufreq/tegra186-cpufreq.c:87:40: sparse: expected void [noderef] __iomem *edvd_reg drivers/cpufreq/tegra186-cpufreq.c:87:40: sparse: got void *driver_data >> drivers/cpufreq/tegra186-cpufreq.c:108:18: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void [noderef] __iomem *edvd_reg @@ got void *driver_data @@ drivers/cpufreq/tegra186-cpufreq.c:108:18: sparse: expected void [noderef] __iomem *edvd_reg drivers/cpufreq/tegra186-cpufreq.c:108:18: sparse: got void *driver_data vim +108 drivers/cpufreq/tegra186-cpufreq.c 53 54 static int tegra186_cpufreq_init(struct cpufreq_policy *policy) 55 { 56 struct tegra186_cpufreq_data *data = cpufreq_get_driver_data(); 57 unsigned int i; 58 59 for (i = 0; i < data->num_clusters; i++) { 60 struct tegra186_cpufreq_cluster *cluster = &data->clusters[i]; 61 const struct tegra186_cpufreq_cluster_info *info = 62 cluster->info; 63 int core; 64 65 for (core = 0; core < ARRAY_SIZE(info->cpus); core++) { 66 if (info->cpus[core] == policy->cpu) 67 break; 68 } 69 if (core == ARRAY_SIZE(info->cpus)) 70 continue; 71 > 72 policy->driver_data = 73 data->regs + info->offset + EDVD_CORE_VOLT_FREQ(core); 74 policy->freq_table = cluster->table; 75 break; 76 } 77 78 policy->cpuinfo.transition_latency = 300 * 1000; 79 80 return 0; 81 } 82 83 static int tegra186_cpufreq_set_target(struct cpufreq_policy *policy, 84 unsigned int index) 85 { 86 struct cpufreq_frequency_table *tbl = policy->freq_table + index; 87 void __iomem *edvd_reg = policy->driver_data; 88 u32 edvd_val = tbl->driver_data; 89 90 writel(edvd_val, edvd_reg); 91 92 return 0; 93 } 94 95 static unsigned int tegra186_cpufreq_get(unsigned int cpu) 96 { 97 struct cpufreq_frequency_table *tbl; 98 struct cpufreq_policy *policy; 99 void __iomem *edvd_reg; 100 unsigned int i, freq = 0; 101 u32 ndiv; 102 103 policy = cpufreq_cpu_get(cpu); 104 if (!policy) 105 return 0; 106 107 tbl = policy->freq_table; > 108 edvd_reg = policy->driver_data; 109 ndiv = readl(edvd_reg) & EDVD_CORE_VOLT_FREQ_F_MASK; 110 111 for (i = 0; tbl[i].frequency != CPUFREQ_TABLE_END; i++) { 112 if ((tbl[i].driver_data & EDVD_CORE_VOLT_FREQ_F_MASK) == ndiv) { 113 freq = tbl[i].frequency; 114 break; 115 } 116 } 117 118 cpufreq_cpu_put(policy); 119 120 return freq; 121 } 122