Commit 6936e1f8 authored by Patrice Chotard's avatar Patrice Chotard Committed by Lee Jones

gpio: stmpe: Write int status register only when needed

On STMPE801/1801 datasheets, it's mentionned writing
in interrupt status register has no effect, bits are
cleared when reading.
Signed-off-by: default avatarAmelie DELAUNAY <amelie.delaunay@st.com>
Signed-off-by: default avatarPatrice Chotard <patrice.chotard@st.com>
Reviewed-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
parent 287849cb
......@@ -371,13 +371,17 @@ static irqreturn_t stmpe_gpio_irq(int irq, void *dev)
stat &= ~(1 << bit);
}
/*
* 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]);
/* Edge detect register is not present on 801 and 1801 */
if (stmpe->partnum != STMPE801 || stmpe->partnum != STMPE1801)
stmpe_reg_write(stmpe, stmpe->regs[STMPE_IDX_GPEDR_MSB]
+ i, status[i]);
}
}
return IRQ_HANDLED;
}
......
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