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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2019-07-26 15:18:20 +0300
committerChanwoo Choi <cw00.choi@samsung.com>2019-07-29 04:24:14 +0300
commit21be848ebc5f3cb714b23c2528fbe73f69073c32 (patch)
treee62562bc2c888d57b242e7316b17fa11387e44af /drivers/extcon/extcon-axp288.c
parentd72e3dc7915fc6c54645772c13f4afc0e676c7e2 (diff)
downloadlinux-21be848ebc5f3cb714b23c2528fbe73f69073c32.tar.xz
extcon: axp288: Use for_each_set_bit() in axp288_extcon_log_rsi()
This simplifies and standardizes axp288_extcon_log_rsi() by using for_each_set_bit() library function. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Diffstat (limited to 'drivers/extcon/extcon-axp288.c')
-rw-r--r--drivers/extcon/extcon-axp288.c13
1 files changed, 5 insertions, 8 deletions
diff --git a/drivers/extcon/extcon-axp288.c b/drivers/extcon/extcon-axp288.c
index 694a8d4a57ff..415afaf479e7 100644
--- a/drivers/extcon/extcon-axp288.c
+++ b/drivers/extcon/extcon-axp288.c
@@ -121,7 +121,6 @@ static const char * const axp288_pwr_up_down_info[] = {
"Last shutdown caused by PMIC UVLO threshold",
"Last shutdown caused by SOC initiated cold off",
"Last shutdown caused by user pressing the power button",
- NULL,
};
/*
@@ -130,8 +129,8 @@ static const char * const axp288_pwr_up_down_info[] = {
*/
static void axp288_extcon_log_rsi(struct axp288_extcon_info *info)
{
- const char * const *rsi;
unsigned int val, i, clear_mask = 0;
+ unsigned long bits;
int ret;
ret = regmap_read(info->regmap, AXP288_PS_BOOT_REASON_REG, &val);
@@ -140,12 +139,10 @@ static void axp288_extcon_log_rsi(struct axp288_extcon_info *info)
return;
}
- for (i = 0, rsi = axp288_pwr_up_down_info; *rsi; rsi++, i++) {
- if (val & BIT(i)) {
- dev_dbg(info->dev, "%s\n", *rsi);
- clear_mask |= BIT(i);
- }
- }
+ bits = val & GENMASK(ARRAY_SIZE(axp288_pwr_up_down_info) - 1, 0);
+ for_each_set_bit(i, &bits, ARRAY_SIZE(axp288_pwr_up_down_info))
+ dev_dbg(info->dev, "%s\n", axp288_pwr_up_down_info[i]);
+ clear_mask = bits;
/* Clear the register value for next reboot (write 1 to clear bit) */
regmap_write(info->regmap, AXP288_PS_BOOT_REASON_REG, clear_mask);