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SubjectRe: [PATCH v3 07/10] Documentation: dt-bindings: Add documents for PECI hwmon client drivers
On Tue, Apr 10, 2018 at 11:32:09AM -0700, Jae Hyun Yoo wrote:
> This commit adds dt-bindings documents for PECI cputemp and dimmtemp client
> drivers.

"dt-bindings: hwmon: ..." for the subject.

>
> Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
> Reviewed-by: Haiyue Wang <haiyue.wang@linux.intel.com>
> Reviewed-by: James Feist <james.feist@linux.intel.com>
> Reviewed-by: Vernon Mauery <vernon.mauery@linux.intel.com>
> Cc: Alan Cox <alan@linux.intel.com>
> Cc: Andrew Jeffery <andrew@aj.id.au>
> Cc: Andrew Lunn <andrew@lunn.ch>
> Cc: Andy Shevchenko <andriy.shevchenko@intel.com>
> Cc: Arnd Bergmann <arnd@arndb.de>
> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
> Cc: Fengguang Wu <fengguang.wu@intel.com>
> Cc: Greg KH <gregkh@linuxfoundation.org>
> Cc: Guenter Roeck <linux@roeck-us.net>
> Cc: Jason M Biils <jason.m.bills@linux.intel.com>
> Cc: Jean Delvare <jdelvare@suse.com>
> Cc: Joel Stanley <joel@jms.id.au>
> Cc: Julia Cartwright <juliac@eso.teric.us>
> Cc: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
> Cc: Milton Miller II <miltonm@us.ibm.com>
> Cc: Pavel Machek <pavel@ucw.cz>
> Cc: Randy Dunlap <rdunlap@infradead.org>
> Cc: Stef van Os <stef.van.os@prodrive-technologies.com>
> Cc: Sumeet R Pawnikar <sumeet.r.pawnikar@intel.com>
> ---
> .../devicetree/bindings/hwmon/peci-cputemp.txt | 24 +++++++++++++++++++++
> .../devicetree/bindings/hwmon/peci-dimmtemp.txt | 25 ++++++++++++++++++++++
> 2 files changed, 49 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/hwmon/peci-cputemp.txt
> create mode 100644 Documentation/devicetree/bindings/hwmon/peci-dimmtemp.txt
>
> diff --git a/Documentation/devicetree/bindings/hwmon/peci-cputemp.txt b/Documentation/devicetree/bindings/hwmon/peci-cputemp.txt
> new file mode 100644
> index 000000000000..d5530ef9cfd2
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/hwmon/peci-cputemp.txt
> @@ -0,0 +1,24 @@
> +Bindings for Intel PECI (Platform Environment Control Interface) cputemp driver.
> +
> +Required properties:
> +- compatible : Should be "intel,peci-cputemp".
> +- reg : Should contain address of a client CPU. Address range of CPU
> + clients is starting from 0x30 based on PECI specification.
> + <0x30> .. <0x37> (depends on the PECI_OFFSET_MAX definition)

Again, where is PECI_OFFSET_MAX defined? It can't depend on something in
the kernel.

> +
> +Example:
> + peci-bus@0 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + < more properties >
> +
> + peci-cputemp@cpu0 {
> + compatible = "intel,peci-cputemp";
> + reg = <0x30>;
> + };
> +
> + peci-cputemp@cpu1 {
> + compatible = "intel,peci-cputemp";
> + reg = <0x31>;
> + };
> + };
> diff --git a/Documentation/devicetree/bindings/hwmon/peci-dimmtemp.txt b/Documentation/devicetree/bindings/hwmon/peci-dimmtemp.txt
> new file mode 100644
> index 000000000000..56e5deb61e5c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/hwmon/peci-dimmtemp.txt
> @@ -0,0 +1,25 @@
> +Bindings for Intel PECI (Platform Environment Control Interface) dimmtemp
> +driver.
> +
> +Required properties:
> +- compatible : Should be "intel,peci-dimmtemp".
> +- reg : Should contain address of a client CPU. Address range of CPU
> + clients is starting from 0x30 based on PECI specification.
> + <0x30> .. <0x37> (depends on the PECI_OFFSET_MAX definition)
> +
> +Example:
> + peci-bus@0 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + < more properties >
> +
> + peci-dimmtemp@cpu0 {

unit-address is wrong.

It is a different bus from cputemp? Otherwise, you have conflicting
addresses. If that's the case, probably should make it clear by showing
different host adapters for each example.

> + compatible = "intel,peci-dimmtemp";
> + reg = <0x30>;
> + };
> +
> + peci-dimmtemp@cpu1 {
> + compatible = "intel,peci-dimmtemp";
> + reg = <0x31>;
> + };
> + };
> --
> 2.16.2
>
> --
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