[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-Id: <20230801190951.51818-1-brgl@bgdev.pl>
Date: Tue, 1 Aug 2023 21:09:51 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Linus Walleij <linus.walleij@...aro.org>,
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
Kent Gibson <warthog618@...il.com>
Cc: linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH] gpio: sim: mark the GPIO chip as a one that can sleep
From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Simulated chips use a mutex for synchronization in driver callbacks so
they must not be called from interrupt context. Set the can_sleep field
of the GPIO chip to true to force users to only use threaded irqs.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
---
drivers/gpio/gpio-sim.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpio/gpio-sim.c b/drivers/gpio/gpio-sim.c
index cfbdade841e8..5f8723ad0048 100644
--- a/drivers/gpio/gpio-sim.c
+++ b/drivers/gpio/gpio-sim.c
@@ -429,6 +429,7 @@ static int gpio_sim_add_bank(struct fwnode_handle *swnode, struct device *dev)
gc->set_config = gpio_sim_set_config;
gc->to_irq = gpio_sim_to_irq;
gc->free = gpio_sim_free;
+ gc->can_sleep = true;
ret = devm_gpiochip_add_data(dev, gc, chip);
if (ret)
--
2.39.2
Powered by blists - more mailing lists