linux-kernel - [PATCH 10/12] rtc: rx8025: clear RTC_FEATURE

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Date:   Sun,  7 Nov 2021 23:54:55 +0100
From:   Alexandre Belloni <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 10/12] rtc: rx8025: clear RTC_FEATURE_ALARM when alarm are not supported

Clear RTC_FEATURE_ALARM to signal alarms are not supported to the core
instead of checking client->irq.

Signed-off-by: Alexandre Belloni <alexandre.belloni@...tlin.com>
---
 drivers/rtc/rtc-rx8025.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/drivers/rtc/rtc-rx8025.c b/drivers/rtc/rtc-rx8025.c
index 6002305efa2d..fcfdefe94a7c 100644
--- a/drivers/rtc/rtc-rx8025.c
+++ b/drivers/rtc/rtc-rx8025.c
@@ -315,9 +315,6 @@ static int rx8025_read_alarm(struct device *dev, struct rtc_wkalrm *t)
 	u8 ald[2];
 	int ctrl2, err;
 
-	if (client->irq <= 0)
-		return -EINVAL;
-
 	err = rx8025_read_regs(client, RX8025_REG_ALDMIN, 2, ald);
 	if (err)
 		return err;
@@ -352,9 +349,6 @@ static int rx8025_set_alarm(struct device *dev, struct rtc_wkalrm *t)
 	u8 ald[2];
 	int err;
 
-	if (client->irq <= 0)
-		return -EINVAL;
-
 	ald[0] = bin2bcd(t->time.tm_min);
 	if (rx8025->ctrl1 & RX8025_BIT_CTRL1_1224)
 		ald[1] = bin2bcd(t->time.tm_hour);
@@ -559,10 +553,8 @@ static int rx8025_probe(struct i2c_client *client,
 						rx8025_handle_irq,
 						IRQF_ONESHOT,
 						"rx8025", client);
-		if (err) {
-			dev_err(&client->dev, "unable to request IRQ, alarms disabled\n");
-			client->irq = 0;
-		}
+		if (err)
+			clear_bit(RTC_FEATURE_ALARM, rx8025->rtc->features);
 	}
 
 	rx8025->rtc->max_user_freq = 1;
-- 
2.31.1