From: Stephen Warren <swarren@xxxxxxxxxx> Implement the new DT property ti,irq-externally-inverted, and add an equivalent platform data field to match. This allows the driver to correctly automatically configure the IRQ output polarity when the board or SoC contains an inverter between the Palmas IRQ output and IRQ controller input. Signed-off-by: Stephen Warren <swarren@xxxxxxxxxx> --- v3: * Use an IRQD flag to represent the data, rather than a custom DT property. v2: * Split V1's patch 1/2 into separate patches 1/3 and 2/3. --- drivers/mfd/palmas.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/mfd/palmas.c b/drivers/mfd/palmas.c index d280d789e55a..3281d4103e9d 100644 --- a/drivers/mfd/palmas.c +++ b/drivers/mfd/palmas.c @@ -292,7 +292,8 @@ static int palmas_set_pdata_irq_flag(struct i2c_client *i2c, return -EINVAL; } - pdata->irq_flags = irqd_get_trigger_type(irq_data); + pdata->irq_flags = irqd_get_trigger_type(irq_data) | + irqd_get_src_dst_inverted(irq_data); dev_info(&i2c->dev, "Irq flag is 0x%08x\n", pdata->irq_flags); return 0; } @@ -447,6 +448,8 @@ static int palmas_i2c_probe(struct i2c_client *i2c, reg = PALMAS_POLARITY_CTRL_INT_POLARITY; else reg = 0; + if (pdata->irq_flags & IRQ_SRC_DST_INVERTED) + reg ^= PALMAS_POLARITY_CTRL_INT_POLARITY; ret = palmas_update_bits(palmas, PALMAS_PU_PD_OD_BASE, PALMAS_POLARITY_CTRL, PALMAS_POLARITY_CTRL_INT_POLARITY, reg); -- 1.8.1.5 -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
