Thread (74 messages) 74 messages, 8 authors, 2020-06-10

Re: [PATCH v4 02/11] mfd: Add support for Kontron sl28cpld management controller

From: Andy Shevchenko <hidden>
Date: 2020-06-05 08:01:47
Also in: linux-devicetree, linux-gpio, linux-hwmon, linux-pwm, linux-watchdog, lkml

On Fri, Jun 5, 2020 at 12:16 AM Michael Walle [off-list ref] wrote:
Add the core support for the board management controller found on the
SMARC-sAL28 board. It consists of the following functions:
 - watchdog
 - GPIO controller
 - PWM controller
 - fan sensor
 - interrupt controller

At the moment, this controller is used on the Kontron SMARC-sAL28 board.

Please note that the MFD driver is defined as bool in the Kconfig
because the next patch will add interrupt support.
...
+config MFD_SL28CPLD
+       bool "Kontron sl28 core driver"
+       depends on I2C=y
Why not module?
+       depends on OF
I didn't find an evidence this is needed.

No Compile Test?
+       select REGMAP_I2C
+       select MFD_CORE
...
+#include <linux/of_platform.h>
No evidence of user of this.
I think you meant mod_devicetable.h.

...
+static struct i2c_driver sl28cpld_driver = {
+       .probe_new = sl28cpld_probe,
+       .driver = {
+               .name = "sl28cpld",
+               .of_match_table = of_match_ptr(sl28cpld_of_match),
Drop of_match_ptr(). It has a little sense in this context (depends OF).
It will have a little sense even if you drop depends OF b/c you will
introduce a compiler warning.
+       },
+};

-- 
With Best Regards,
Andy Shevchenko

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