This is a note to let you know that I've just added the patch titled
hwmon: (sch5627) Use bit macros when accessing the control register
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
hwmon-sch5627-use-bit-macros-when-accessing-the-cont.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 299d86739deec95533d1c2916371efac9acc4eb3
Author: Armin Wolf <W_Armin@xxxxxx>
Date: Thu Sep 7 07:26:35 2023 +0200
hwmon: (sch5627) Use bit macros when accessing the control register
[ Upstream commit 7f0b28e0653f36b51542d25dd54ed312c397ecfc ]
Use bit macros then accessing SCH5627_REG_CTRL, so that people
do not need to look at the datasheet to find out what each bit
does.
Tested on a Fujitsu Esprimo P720.
Signed-off-by: Armin Wolf <W_Armin@xxxxxx>
Link: https://lore.kernel.org/r/20230907052639.16491-2-W_Armin@xxxxxx
Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
Stable-dep-of: 7da8a6354360 ("hwmon: (sch5627) Disallow write access if virtual registers are locked")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/hwmon/sch5627.c b/drivers/hwmon/sch5627.c
index 25fbbd4c9a2b3..87fc1fcf4ca3e 100644
--- a/drivers/hwmon/sch5627.c
+++ b/drivers/hwmon/sch5627.c
@@ -6,6 +6,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#include <linux/bits.h>
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/init.h>
@@ -32,6 +33,9 @@
#define SCH5627_REG_PRIMARY_ID 0x3f
#define SCH5627_REG_CTRL 0x40
+#define SCH5627_CTRL_START BIT(0)
+#define SCH5627_CTRL_VBAT BIT(4)
+
#define SCH5627_NO_TEMPS 8
#define SCH5627_NO_FANS 4
#define SCH5627_NO_IN 5
@@ -147,7 +151,8 @@ static int sch5627_update_in(struct sch5627_data *data)
/* Trigger a Vbat voltage measurement every 5 minutes */
if (time_after(jiffies, data->last_battery + 300 * HZ)) {
- sch56xx_write_virtual_reg(data->addr, SCH5627_REG_CTRL, data->control | 0x10);
+ sch56xx_write_virtual_reg(data->addr, SCH5627_REG_CTRL,
+ data->control | SCH5627_CTRL_VBAT);
data->last_battery = jiffies;
}
@@ -483,14 +488,13 @@ static int sch5627_probe(struct platform_device *pdev)
return val;
data->control = val;
- if (!(data->control & 0x01)) {
+ if (!(data->control & SCH5627_CTRL_START)) {
pr_err("hardware monitoring not enabled\n");
return -ENODEV;
}
/* Trigger a Vbat voltage measurement, so that we get a valid reading
the first time we read Vbat */
- sch56xx_write_virtual_reg(data->addr, SCH5627_REG_CTRL,
- data->control | 0x10);
+ sch56xx_write_virtual_reg(data->addr, SCH5627_REG_CTRL, data->control | SCH5627_CTRL_VBAT);
data->last_battery = jiffies;
/*
