diff options
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-stmpe.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/gpio/gpio-stmpe.c b/drivers/gpio/gpio-stmpe.c index fdac5d9e5b8d..5806af549ddf 100644 --- a/drivers/gpio/gpio-stmpe.c +++ b/drivers/gpio/gpio-stmpe.c @@ -371,12 +371,16 @@ static irqreturn_t stmpe_gpio_irq(int irq, void *dev) stat &= ~(1 << bit); } - stmpe_reg_write(stmpe, statmsbreg + i, status[i]); - - /* Edge detect register is not present on 801 and 1801 */ - if (stmpe->partnum != STMPE801 || stmpe->partnum != STMPE1801) + /* + * interrupt status register write has no effect on + * 801 and 1801, bits are cleared when read. + * Edge detect register is not present on 801 and 1801 + */ + if (stmpe->partnum != STMPE801 || stmpe->partnum != STMPE1801) { + stmpe_reg_write(stmpe, statmsbreg + i, status[i]); stmpe_reg_write(stmpe, stmpe->regs[STMPE_IDX_GPEDR_MSB] + i, status[i]); + } } return IRQ_HANDLED; |