Hi Zhou,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on pinctrl/devel]
[also build test WARNING on v5.4-rc8 next-20191122]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Zhou-Yanjie/pinctrl-Ingenic-Fix-bugs-in-X1000-and-X1500/20191125-041127
base:   https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl.git devel
config: sh-allmodconfig (attached as .config)
compiler: sh4-linux-gcc (GCC) 7.4.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=7.4.0 make.cross ARCH=sh 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

   drivers/pinctrl/pinctrl-ingenic.c: In function 'ingenic_set_bias':
>> drivers/pinctrl/pinctrl-ingenic.c:2145:11: warning: 'return' with a value, in function returning void
       return -EINVAL;
              ^
   drivers/pinctrl/pinctrl-ingenic.c:2104:13: note: declared here
    static void ingenic_set_bias(struct ingenic_pinctrl *jzpc,
                ^~~~~~~~~~~~~~~~
   drivers/pinctrl/pinctrl-ingenic.c:2149:11: warning: 'return' with a value, in function returning void
       return -EINVAL;
              ^
   drivers/pinctrl/pinctrl-ingenic.c:2104:13: note: declared here
    static void ingenic_set_bias(struct ingenic_pinctrl *jzpc,
                ^~~~~~~~~~~~~~~~

vim +/return +2145 drivers/pinctrl/pinctrl-ingenic.c

  2103	
  2104	static void ingenic_set_bias(struct ingenic_pinctrl *jzpc,
  2105			unsigned int pin, unsigned int bias)
  2106	{
  2107		if (jzpc->version >= ID_X1830) {
  2108			unsigned int idx = pin % PINS_PER_GPIO_CHIP;
  2109			unsigned int offt = pin / PINS_PER_GPIO_CHIP;
  2110	
  2111			if (bias == GPIO_HIZ) {
  2112				if (idx < (PINS_PER_GPIO_CHIP / 2))
  2113					regmap_write(jzpc->map, offt * 0x1000 +
  2114							REG_CLEAR(X1830_GPIO_PEL0), BIT(idx * 2) * 3);
  2115				else
  2116					regmap_write(jzpc->map, offt * 0x1000 +
  2117							REG_CLEAR(X1830_GPIO_PEL1), BIT(idx % 16 * 2) * 3);
  2118			} else if (bias == GPIO_PULLUP) {
  2119				if (idx < (PINS_PER_GPIO_CHIP / 2)) {
  2120					regmap_write(jzpc->map, offt * 0x1000 +
  2121							REG_SET(X1830_GPIO_PEL0), BIT(idx * 2));
  2122					regmap_write(jzpc->map, offt * 0x1000 +
  2123							REG_CLEAR(X1830_GPIO_PEL0), BIT(idx * 2) * 2);
  2124				} else {
  2125					regmap_write(jzpc->map, offt * 0x1000 +
  2126							REG_SET(X1830_GPIO_PEL1), BIT(idx % 16 * 2));
  2127					regmap_write(jzpc->map, offt * 0x1000 +
  2128							REG_CLEAR(X1830_GPIO_PEL1), BIT(idx % 16 * 2) * 2);
  2129				}
  2130			} else {
  2131				if (idx < (PINS_PER_GPIO_CHIP / 2)) {
  2132					regmap_write(jzpc->map, offt * 0x1000 +
  2133							REG_CLEAR(X1830_GPIO_PEL0), BIT(idx * 2));
  2134					regmap_write(jzpc->map, offt * 0x1000 +
  2135							REG_SET(X1830_GPIO_PEL0), BIT(idx * 2) * 2);
  2136				} else {
  2137					regmap_write(jzpc->map, offt * 0x1000 +
  2138							REG_CLEAR(X1830_GPIO_PEL1), BIT(idx % 16 * 2));
  2139					regmap_write(jzpc->map, offt * 0x1000 +
  2140							REG_SET(X1830_GPIO_PEL1), BIT(idx % 16 * 2) * 2);
  2141				}
  2142			}
  2143		} else if (jzpc->version >= ID_JZ4760) {
  2144			if (bias == GPIO_HIZ)
> 2145				return -EINVAL;
  2146			ingenic_config_pin(jzpc, pin, JZ4760_GPIO_PEN, !bias);
  2147		} else {
  2148			if (bias == GPIO_HIZ)
  2149				return -EINVAL;
  2150			ingenic_config_pin(jzpc, pin, JZ4740_GPIO_PULL_DIS, !bias);
  2151		}
  2152	}
  2153	

---
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