diff options
| author | Sean Cross <xobs@kosagi.com> | 2014-09-12 11:18:33 +0800 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2014-09-26 08:23:53 +0100 |
| commit | 851ec59614d8cd0d122319c32a5be0f8799d36be (patch) | |
| tree | 2dc01154ee87fd169dfd282005b40db12895c97a /drivers/mfd/stmpe.c | |
| parent | bdaf67030cbab21a91fd2d6b1771cf336a0dd092 (diff) | |
| download | linux-851ec59614d8cd0d122319c32a5be0f8799d36be.tar.bz2 | |
mfd: stmpe: Support gpio over irq under device tree
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>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/mfd/stmpe.c')
| -rw-r--r-- | drivers/mfd/stmpe.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c index f9d46f035bb1..e2f9df1c0c36 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); |