[openeuler:OLK-5.10 14521/30000] drivers/gpu/drm/loongson/lsdc_i2c.c:180:23: sparse: sparse: incorrect type in assignment (different address spaces)
tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: bef6f06e039b8929481350d15d6d8c3ba81c6fd2 commit: 028c67cca3dd40a78c0f025f2b8562343dcb2741 [14521/30000] LoongArch: fix compile error when using make allmodconfig config: arm64-randconfig-r131-20240925 (https://download.01.org/0day-ci/archive/20240928/202409281308.P52A5s6n-lkp@i...) compiler: aarch64-linux-gcc (GCC) 14.1.0 reproduce: (https://download.01.org/0day-ci/archive/20240928/202409281308.P52A5s6n-lkp@i...)
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 | Closes: https://lore.kernel.org/oe-kbuild-all/202409281308.P52A5s6n-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
drivers/gpu/drm/loongson/lsdc_i2c.c:180:23: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void [noderef] __iomem *dir_reg @@ got void * @@
drivers/gpu/drm/loongson/lsdc_i2c.c:180:23: sparse: expected void [noderef] __iomem *dir_reg drivers/gpu/drm/loongson/lsdc_i2c.c:180:23: sparse: got void *
drivers/gpu/drm/loongson/lsdc_i2c.c:181:23: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void [noderef] __iomem *dat_reg @@ got void * @@
drivers/gpu/drm/loongson/lsdc_i2c.c:181:23: sparse: expected void [noderef] __iomem *dat_reg drivers/gpu/drm/loongson/lsdc_i2c.c:181:23: sparse: got void * drivers/gpu/drm/loongson/lsdc_i2c.c:253:23: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void [noderef] __iomem *dir_reg @@ got void * @@ drivers/gpu/drm/loongson/lsdc_i2c.c:253:23: sparse: expected void [noderef] __iomem *dir_reg drivers/gpu/drm/loongson/lsdc_i2c.c:253:23: sparse: got void * drivers/gpu/drm/loongson/lsdc_i2c.c:254:23: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void [noderef] __iomem *dat_reg @@ got void * @@ drivers/gpu/drm/loongson/lsdc_i2c.c:254:23: sparse: expected void [noderef] __iomem *dat_reg drivers/gpu/drm/loongson/lsdc_i2c.c:254:23: sparse: got void *
vim +180 drivers/gpu/drm/loongson/lsdc_i2c.c
80764bc784413e Huacai Chen 2018-05-22 130 80764bc784413e Huacai Chen 2018-05-22 131 struct lsdc_i2c *lsdc_of_create_i2c_adapter(struct device *parent, 80764bc784413e Huacai Chen 2018-05-22 132 void *reg_base, 80764bc784413e Huacai Chen 2018-05-22 133 struct device_node *i2c_np) 80764bc784413e Huacai Chen 2018-05-22 134 { 80764bc784413e Huacai Chen 2018-05-22 135 unsigned int udelay = 5; 80764bc784413e Huacai Chen 2018-05-22 136 unsigned int timeout = 2200; 80764bc784413e Huacai Chen 2018-05-22 137 int nr = -1; 80764bc784413e Huacai Chen 2018-05-22 138 struct i2c_adapter *adapter; 80764bc784413e Huacai Chen 2018-05-22 139 struct lsdc_i2c *li2c; 80764bc784413e Huacai Chen 2018-05-22 140 u32 sda, scl; 80764bc784413e Huacai Chen 2018-05-22 141 int ret; 80764bc784413e Huacai Chen 2018-05-22 142 80764bc784413e Huacai Chen 2018-05-22 143 li2c = kzalloc(sizeof(*li2c), GFP_KERNEL); 80764bc784413e Huacai Chen 2018-05-22 144 if (!li2c) 80764bc784413e Huacai Chen 2018-05-22 145 return ERR_PTR(-ENOMEM); 80764bc784413e Huacai Chen 2018-05-22 146 80764bc784413e Huacai Chen 2018-05-22 147 spin_lock_init(&li2c->reglock); 80764bc784413e Huacai Chen 2018-05-22 148 80764bc784413e Huacai Chen 2018-05-22 149 ret = of_property_read_u32(i2c_np, "loongson,sda", &sda); 80764bc784413e Huacai Chen 2018-05-22 150 if (ret) { 80764bc784413e Huacai Chen 2018-05-22 151 dev_err(parent, "No sda pin number provided\n"); 80764bc784413e Huacai Chen 2018-05-22 152 return ERR_PTR(ret); 80764bc784413e Huacai Chen 2018-05-22 153 } 80764bc784413e Huacai Chen 2018-05-22 154 80764bc784413e Huacai Chen 2018-05-22 155 ret = of_property_read_u32(i2c_np, "loongson,scl", &scl); 80764bc784413e Huacai Chen 2018-05-22 156 if (ret) { 80764bc784413e Huacai Chen 2018-05-22 157 dev_err(parent, "No scl pin number provided\n"); 80764bc784413e Huacai Chen 2018-05-22 158 return ERR_PTR(ret); 80764bc784413e Huacai Chen 2018-05-22 159 } 80764bc784413e Huacai Chen 2018-05-22 160 80764bc784413e Huacai Chen 2018-05-22 161 ret = of_property_read_u32(i2c_np, "loongson,nr", &nr); 80764bc784413e Huacai Chen 2018-05-22 162 if (ret) { 80764bc784413e Huacai Chen 2018-05-22 163 int id; 80764bc784413e Huacai Chen 2018-05-22 164 80764bc784413e Huacai Chen 2018-05-22 165 if (ret == -EINVAL) 80764bc784413e Huacai Chen 2018-05-22 166 dev_dbg(parent, "no nr provided\n"); 80764bc784413e Huacai Chen 2018-05-22 167 80764bc784413e Huacai Chen 2018-05-22 168 id = of_alias_get_id(i2c_np, "i2c"); 80764bc784413e Huacai Chen 2018-05-22 169 if (id >= 0) 80764bc784413e Huacai Chen 2018-05-22 170 nr = id; 80764bc784413e Huacai Chen 2018-05-22 171 } 80764bc784413e Huacai Chen 2018-05-22 172 80764bc784413e Huacai Chen 2018-05-22 173 li2c->sda = 1 << sda; 80764bc784413e Huacai Chen 2018-05-22 174 li2c->scl = 1 << scl; 80764bc784413e Huacai Chen 2018-05-22 175 80764bc784413e Huacai Chen 2018-05-22 176 /* Optional properties which made the driver more flexible */ 80764bc784413e Huacai Chen 2018-05-22 177 of_property_read_u32(i2c_np, "loongson,udelay", &udelay); 80764bc784413e Huacai Chen 2018-05-22 178 of_property_read_u32(i2c_np, "loongson,timeout", &timeout); 80764bc784413e Huacai Chen 2018-05-22 179 80764bc784413e Huacai Chen 2018-05-22 @180 li2c->dir_reg = reg_base + LS7A_DC_GPIO_DIR_REG; 80764bc784413e Huacai Chen 2018-05-22 @181 li2c->dat_reg = reg_base + LS7A_DC_GPIO_DAT_REG; 80764bc784413e Huacai Chen 2018-05-22 182 80764bc784413e Huacai Chen 2018-05-22 183 li2c->bit.setsda = ls7a_i2c_set_sda; 80764bc784413e Huacai Chen 2018-05-22 184 li2c->bit.setscl = ls7a_i2c_set_scl; 80764bc784413e Huacai Chen 2018-05-22 185 li2c->bit.getsda = ls7a_i2c_get_sda; 80764bc784413e Huacai Chen 2018-05-22 186 li2c->bit.getscl = ls7a_i2c_get_scl; 80764bc784413e Huacai Chen 2018-05-22 187 li2c->bit.udelay = udelay; 80764bc784413e Huacai Chen 2018-05-22 188 li2c->bit.timeout = usecs_to_jiffies(timeout); 80764bc784413e Huacai Chen 2018-05-22 189 li2c->bit.data = li2c; 80764bc784413e Huacai Chen 2018-05-22 190 80764bc784413e Huacai Chen 2018-05-22 191 adapter = &li2c->adapter; 80764bc784413e Huacai Chen 2018-05-22 192 adapter->algo_data = &li2c->bit; 80764bc784413e Huacai Chen 2018-05-22 193 adapter->owner = THIS_MODULE; 80764bc784413e Huacai Chen 2018-05-22 194 adapter->class = I2C_CLASS_DDC; 80764bc784413e Huacai Chen 2018-05-22 195 adapter->dev.parent = parent; 80764bc784413e Huacai Chen 2018-05-22 196 adapter->nr = nr; 80764bc784413e Huacai Chen 2018-05-22 197 adapter->dev.of_node = i2c_np; 80764bc784413e Huacai Chen 2018-05-22 198 80764bc784413e Huacai Chen 2018-05-22 199 snprintf(adapter->name, sizeof(adapter->name), "gpio-i2c-%d", nr); 80764bc784413e Huacai Chen 2018-05-22 200 80764bc784413e Huacai Chen 2018-05-22 201 i2c_set_adapdata(adapter, li2c); 80764bc784413e Huacai Chen 2018-05-22 202 80764bc784413e Huacai Chen 2018-05-22 203 ret = i2c_bit_add_numbered_bus(adapter); 80764bc784413e Huacai Chen 2018-05-22 204 if (ret) { 80764bc784413e Huacai Chen 2018-05-22 205 if (i2c_np) 80764bc784413e Huacai Chen 2018-05-22 206 of_node_put(i2c_np); 80764bc784413e Huacai Chen 2018-05-22 207 80764bc784413e Huacai Chen 2018-05-22 208 kfree(li2c); 80764bc784413e Huacai Chen 2018-05-22 209 return ERR_PTR(ret); 80764bc784413e Huacai Chen 2018-05-22 210 } 80764bc784413e Huacai Chen 2018-05-22 211 80764bc784413e Huacai Chen 2018-05-22 212 dev_info(parent, "sda=%u, scl=%u, nr=%d, udelay=%u, timeout=%u\n", 80764bc784413e Huacai Chen 2018-05-22 213 li2c->sda, li2c->scl, nr, udelay, timeout); 80764bc784413e Huacai Chen 2018-05-22 214 80764bc784413e Huacai Chen 2018-05-22 215 ret = devm_add_action_or_reset(parent, lsdc_of_release_i2c_adapter, li2c); 80764bc784413e Huacai Chen 2018-05-22 216 if (ret) 80764bc784413e Huacai Chen 2018-05-22 217 return NULL; 80764bc784413e Huacai Chen 2018-05-22 218 80764bc784413e Huacai Chen 2018-05-22 219 return li2c; 80764bc784413e Huacai Chen 2018-05-22 220 } 80764bc784413e Huacai Chen 2018-05-22 221
:::::: The code at line 180 was first introduced by commit :::::: 80764bc784413eb604c7d472db55b1ca72d4bbc5 drm/loongson: add kernel modesetting driver support for ls7a1000/ls7a2000
:::::: TO: Huacai Chen chenhc@lemote.com :::::: CC: Hongchen Zhang zhanghongchen@loongson.cn
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kernel test robot