| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Mon, 16 Apr 2018 16:51:13 -0700
From: Jae Hyun Yoo <jae.hyun.yoo@...ux.intel.com>
To: Rob Herring <robh@...nel.org>
Cc: Alan Cox <alan@...ux.intel.com>, Andrew Jeffery <andrew@...id.au>,
Andrew Lunn <andrew@...n.ch>,
Andy Shevchenko <andriy.shevchenko@...el.com>,
Arnd Bergmann <arnd@...db.de>,
Benjamin Herrenschmidt <benh@...nel.crashing.org>,
Fengguang Wu <fengguang.wu@...el.com>,
Greg KH <gregkh@...uxfoundation.org>,
Guenter Roeck <linux@...ck-us.net>,
Haiyue Wang <haiyue.wang@...ux.intel.com>,
James Feist <james.feist@...ux.intel.com>,
Jason M Biils <jason.m.bills@...ux.intel.com>,
Jean Delvare <jdelvare@...e.com>,
Joel Stanley <joel@....id.au>,
Julia Cartwright <juliac@....teric.us>,
Miguel Ojeda <miguel.ojeda.sandonis@...il.com>,
Milton Miller II <miltonm@...ibm.com>,
Pavel Machek <pavel@....cz>,
Randy Dunlap <rdunlap@...radead.org>,
Stef van Os <stef.van.os@...drive-technologies.com>,
Sumeet R Pawnikar <sumeet.r.pawnikar@...el.com>,
Vernon Mauery <vernon.mauery@...ux.intel.com>,
linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
devicetree@...r.kernel.org, linux-hwmon@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, openbmc@...ts.ozlabs.org
Subject: Re: [PATCH v3 07/10] Documentation: dt-bindings: Add documents for
PECI hwmon client drivers
On 4/16/2018 4:22 PM, Jae Hyun Yoo wrote:
> On 4/16/2018 11:14 AM, Rob Herring wrote:
>> 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.
>>
>
> I'll change the subject.
>
>>>
>>> Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@...ux.intel.com>
>>> Reviewed-by: Haiyue Wang <haiyue.wang@...ux.intel.com>
>>> Reviewed-by: James Feist <james.feist@...ux.intel.com>
>>> Reviewed-by: Vernon Mauery <vernon.mauery@...ux.intel.com>
>>> Cc: Alan Cox <alan@...ux.intel.com>
>>> Cc: Andrew Jeffery <andrew@...id.au>
>>> Cc: Andrew Lunn <andrew@...n.ch>
>>> Cc: Andy Shevchenko <andriy.shevchenko@...el.com>
>>> Cc: Arnd Bergmann <arnd@...db.de>
>>> Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
>>> Cc: Fengguang Wu <fengguang.wu@...el.com>
>>> Cc: Greg KH <gregkh@...uxfoundation.org>
>>> Cc: Guenter Roeck <linux@...ck-us.net>
>>> Cc: Jason M Biils <jason.m.bills@...ux.intel.com>
>>> Cc: Jean Delvare <jdelvare@...e.com>
>>> Cc: Joel Stanley <joel@....id.au>
>>> Cc: Julia Cartwright <juliac@....teric.us>
>>> Cc: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
>>> Cc: Milton Miller II <miltonm@...ibm.com>
>>> Cc: Pavel Machek <pavel@....cz>
>>> Cc: Randy Dunlap <rdunlap@...radead.org>
>>> Cc: Stef van Os <stef.van.os@...drive-technologies.com>
>>> Cc: Sumeet R Pawnikar <sumeet.r.pawnikar@...el.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.
>>
>
> I'll remove the unnecessary description.
>
>>> +
>>> +Example:
>>> + peci-bus@0 {
>>> + #address-cells = <1>;
>>> + #size-cells = <0>;
>>> + < more properties >
>>> +
>>> + peci-cputemp@...0 {
>>> + compatible = "intel,peci-cputemp";
>>> + reg = <0x30>;
>>> + };
>>> +
>>> + peci-cputemp@...1 {
>>> + 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@...0 {
>>
>> unit-address is wrong.
>>
>
> Will fix it using the reg value.
>
>> 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.
>>
>
> It could be the same bus with cputemp. Also, client address sharing is
> possible by PECI core if the functionality is different. I mean, cputemp
> and dimmtemp targeting the same client is possible case like this.
> peci-cputemp@30
> peci-dimmtemp@30
>
Oh, I got your point. Probably, I should change these separate settings
into one like
peci-client@30 {
compatible = "intel,peci-client";
reg = <0x30>;
};
Then cputemp and dimmtemp drivers could refer the same compatible
string. Will rewrite it.
>>> + compatible = "intel,peci-dimmtemp";
>>> + reg = <0x30>;
>>> + };
>>> +
>>> + peci-dimmtemp@...1 {
>>> + compatible = "intel,peci-dimmtemp";
>>> + reg = <0x31>;
>>> + };
>>> + };
>>> --
>>> 2.16.2
>>>
>>> --
>>> To unsubscribe from this list: send the line "unsubscribe devicetree" in
>>> the body of a message to majordomo@...r.kernel.org
>>> More majordomo info at http://vger.kernel.org/majordomo-info.html
Powered by blists - more mailing lists