From: Michael Walle <mwalle@kernel.org>
To: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: linux-rtc@vger.kernel.org, linux-kernel@vger.kernel.org,
Michael Walle <mwalle@kernel.org>
Subject: [PATCH] rtc: pcf8563: add SMBus support
Date: Wed, 30 Sep 2026 13:30:53 +0200 [thread overview]
Message-ID: <20260930113126.720555-1-mwalle@kernel.org> (raw)
Since commit 00f1bb9b8486 ("rtc: pcf8563: Switch to regmap") the driver
uses regmap to access the RTC. Regmap itself will figure out if there is
a suitable I2C or SMBus host controllers. Thus, don't restict the driver
to just I2C controllers and make it work on SMBus controllers supporting
i2c block accesses.
This was tested on a custom x86 board.
Signed-off-by: Michael Walle <mwalle@kernel.org>
---
drivers/rtc/rtc-pcf8563.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/drivers/rtc/rtc-pcf8563.c b/drivers/rtc/rtc-pcf8563.c
index 7eebdb058067..eee9bc752b52 100644
--- a/drivers/rtc/rtc-pcf8563.c
+++ b/drivers/rtc/rtc-pcf8563.c
@@ -479,9 +479,6 @@ static int pcf8563_probe(struct i2c_client *client)
dev_dbg(&client->dev, "%s\n", __func__);
- if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
- return -ENODEV;
-
pcf8563 = devm_kzalloc(&client->dev, sizeof(struct pcf8563),
GFP_KERNEL);
if (!pcf8563)
--
2.47.3
reply other threads:[~2026-09-30 11:31 UTC|newest]
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