linux-kernel - [PATCH 01/12] rtc: rx8010: use IRQ flags obtained from fwnode

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Mon, 23 Jan 2023 21:02:06 +0100
From:   alexandre.belloni@...tlin.com
To:     Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>
Cc:     linux-rtc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 01/12] rtc: rx8010: use IRQ flags obtained from fwnode

From: Alexandre Belloni <alexandre.belloni@...tlin.com>

Allow the IRQ type to be passed from the device tree if available as there
may be components changing the trigger type of the interrupt between the
RTC and the IRQ controller.

Signed-off-by: Alexandre Belloni <alexandre.belloni@...tlin.com>
---
 drivers/rtc/rtc-rx8010.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-rx8010.c b/drivers/rtc/rtc-rx8010.c
index 5e2fd39f70bb..b9c8dad26208 100644
--- a/drivers/rtc/rtc-rx8010.c
+++ b/drivers/rtc/rtc-rx8010.c
@@ -394,9 +394,14 @@ static int rx8010_probe(struct i2c_client *client)
 		return PTR_ERR(rx8010->rtc);
 
 	if (client->irq > 0) {
+		unsigned long irqflags = IRQF_TRIGGER_LOW;
+
+		if (dev_fwnode(&client->dev))
+			irqflags = 0;
+
 		err = devm_request_threaded_irq(dev, client->irq, NULL,
 						rx8010_irq_1_handler,
-						IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+						irqflags | IRQF_ONESHOT,
 						"rx8010", client);
 		if (err) {
 			dev_err(dev, "unable to request IRQ\n");
-- 
2.39.1