On 06/17/2016 05:05 PM, Marcin Niestroj wrote:
On 16.06.2016 15:03, Grygorii Strashko wrote:
On 06/16/2016 02:41 PM, Marcin Niestroj wrote:
Add support for handling IRQs: power button, AC and USB power state
changes. Mask and interrupt bits are shared within one register, which
prevents us to use regmap_irq implementation. New irq_domain is
created in
order to add interrupt handling for each tps65217's subsystem. IRQ
resources have been added for charger subsystem to be able to notify
about
AC and USB state changes.
Signed-off-by: Marcin Niestroj <m.niestroj@xxxxxxxxxxxxxxxx>
---
drivers/mfd/Kconfig | 1 +
drivers/mfd/tps65217.c | 194
+++++++++++++++++++++++++++++++++++++++++--
include/linux/mfd/tps65217.h | 11 +++
3 files changed, 198 insertions(+), 8 deletions(-)
[...]
+{
+ int ret;
+
+ mutex_init(&tps->irq_lock);
+
+ /* Mask all interrupt sources */
+ tps->irq_mask = (TPS65217_INT_RESERVEDM | TPS65217_INT_PBM
+ | TPS65217_INT_ACM | TPS65217_INT_USBM);
+ tps65217_reg_write(tps, TPS65217_REG_INT, tps->irq_mask,
+ TPS65217_PROTECT_NONE);
+
+ tps->irq_domain = irq_domain_add_linear(tps->dev->of_node,
+ TPS65217_NUM_IRQ, &tps65217_irq_domain_ops, tps);
+ if (!tps->irq_domain) {
+ dev_err(tps->dev, "Could not create IRQ domain\n");
+ return -ENOMEM;
+ }
+
+ ret = devm_request_threaded_irq(tps->dev, irq, NULL,
+ tps65217_irq_thread,
+ IRQF_TRIGGER_RISING | IRQF_ONESHOT,
Are there any reasons why IRQ trigger type specified here explicitly?
Not really. I have configured it that way, it worked and I forgot about
it when preparing patches. Could you give some hint here?
It's better to get it from DT and in case of DT boot it will - the real
IRQ trigger type may depends on board.
--
regards,
-grygorii
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