Messages in this thread Patch in this message | | | From | Sean Cross <> | Subject | [PATCH v2 1/2] mfd: stmpe: support gpio over irq under device tree | Date | Fri, 12 Sep 2014 11:18:33 +0800 |
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The stmpe_platform_data has a irq_over_gpio field, which allows the system to read STMPE events whenever an IRQ occurs on a GPIO pin. This patch adds the ability to configure this field and to use a GPIO as an IRQ source for boards configuring the STMPE in device tree.
Signed-off-by: Sean Cross <xobs@kosagi.com> --- drivers/mfd/stmpe.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c index 3b6bfa7..4c42b05 100644 --- a/drivers/mfd/stmpe.c +++ b/drivers/mfd/stmpe.c @@ -1122,7 +1122,12 @@ static void stmpe_of_probe(struct stmpe_platform_data *pdata, if (pdata->id < 0) pdata->id = -1; - pdata->irq_trigger = IRQF_TRIGGER_NONE; + pdata->irq_gpio = of_get_named_gpio_flags(np, "irq-gpio", 0, + &pdata->irq_trigger); + if (gpio_is_valid(pdata->irq_gpio)) + pdata->irq_over_gpio = 1; + else + pdata->irq_trigger = IRQF_TRIGGER_NONE; of_property_read_u32(np, "st,autosleep-timeout", &pdata->autosleep_timeout); -- 2.1.0
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