From: Rob Herring <robh@kernel.org>
To: Eddie James <eajames@linux.vnet.ibm.com>
Cc: linux-kernel@vger.kernel.org, linux-hwmon@vger.kernel.org,
devicetree@vger.kernel.org, linux@roeck-us.net,
jdelvare@suse.com, mark.rutland@arm.com,
gregkh@linuxfoundation.org, cbostic@linux.vnet.ibm.com,
jk@ozlabs.org, joel@jms.id.au, andrew@aj.id.au,
"Edward A. James" <eajames@us.ibm.com>
Subject: Re: [PATCH 1/7] drivers/hwmon: Add On-Chip Controller (OCC) hwmon driver
Date: Mon, 26 Jun 2017 14:01:36 -0500 [thread overview]
Message-ID: <20170626190136.xtc2qjbkiwyrgnzs@rob-hp-laptop> (raw)
In-Reply-To: <1498171716-26620-2-git-send-email-eajames@linux.vnet.ibm.com>
On Thu, Jun 22, 2017 at 05:48:30PM -0500, Eddie James wrote:
> From: "Edward A. James" <eajames@us.ibm.com>
>
> The OCC is a device embedded on a POWER processor that collects and
> aggregates sensor data from the processor and system. The OCC can
> provide the raw sensor data as well as perform thermal and power
> management on the system.
>
> This driver provides a hwmon interface to the OCC from a service
> processor (e.g. a BMC). The driver supports both POWER8 and POWER9 OCCs.
> Communications with the POWER8 OCC are established over standard I2C
> bus. The driver communicates with the POWER9 OCC through the FSI-based
> OCC driver, which handles the lower-level communication details.
>
> This patch lays out the structure of the OCC hwmon driver. There are two
> platform drivers, one each for P8 and P9 OCCs. These are probed through
> the I2C tree and the FSI-based OCC driver, respectively. The patch also
> defines the first common structures and methods between the two OCC
> versions.
>
> Signed-off-by: Edward A. James <eajames@us.ibm.com>
> ---
> .../devicetree/bindings/fsi/ibm,p9-occ-hwmon.txt | 18 ++++++
> .../devicetree/bindings/i2c/ibm,p8-occ-hwmon.txt | 25 ++++++++
> drivers/hwmon/Kconfig | 2 +
> drivers/hwmon/Makefile | 1 +
> drivers/hwmon/occ/Kconfig | 28 +++++++++
> drivers/hwmon/occ/Makefile | 11 ++++
> drivers/hwmon/occ/common.c | 43 +++++++++++++
> drivers/hwmon/occ/common.h | 41 +++++++++++++
> drivers/hwmon/occ/p8_i2c.c | 70 ++++++++++++++++++++++
> drivers/hwmon/occ/p9_sbe.c | 65 ++++++++++++++++++++
> 10 files changed, 304 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/fsi/ibm,p9-occ-hwmon.txt
> create mode 100644 Documentation/devicetree/bindings/i2c/ibm,p8-occ-hwmon.txt
> create mode 100644 drivers/hwmon/occ/Kconfig
> create mode 100644 drivers/hwmon/occ/Makefile
> create mode 100644 drivers/hwmon/occ/common.c
> create mode 100644 drivers/hwmon/occ/common.h
> create mode 100644 drivers/hwmon/occ/p8_i2c.c
> create mode 100644 drivers/hwmon/occ/p9_sbe.c
>
> diff --git a/Documentation/devicetree/bindings/fsi/ibm,p9-occ-hwmon.txt b/Documentation/devicetree/bindings/fsi/ibm,p9-occ-hwmon.txt
> new file mode 100644
> index 0000000..0ecebb7
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/fsi/ibm,p9-occ-hwmon.txt
> @@ -0,0 +1,18 @@
> +Device-tree bindings for FSI-based On-Chip Controller hwmon driver
> +------------------------------------------------------------------
> +
> +This node MUST be a child node of an OCC driver node.
Bindings describe h/w, not drivers. And hwmon is a Linuxism.
> +
> +Required properties:
> + - compatible = "ibm,p9-occ-hwmon";
> +
> +Examples:
> +
> + occ@1 {
> + compatible = "ibm,p9-occ";
> + reg = <1>;
> +
> + occ-hwmon@1 {
> + compatible = "ibm,p9-occ-hwmon";
See my comment in the other version I just reviewed...
> + };
> + };
next prev parent reply other threads:[~2017-06-26 19:01 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-22 22:48 [PATCH 0/7] drivers/hwmon: Add On-Chip Controller (OCC) hwmon driver Eddie James
2017-06-22 22:48 ` [PATCH 1/7] " Eddie James
2017-06-24 14:15 ` Guenter Roeck
2017-06-26 15:06 ` Eddie James
2017-06-26 16:38 ` Guenter Roeck
2017-06-26 19:01 ` Rob Herring [this message]
2017-06-22 22:48 ` [PATCH 2/7] drivers/hwmon/occ: Add command transport method for P8 and P9 Eddie James
2017-06-24 14:49 ` Guenter Roeck
2017-06-26 15:30 ` Eddie James
2017-06-26 16:55 ` Guenter Roeck
2017-06-22 22:48 ` [PATCH 3/7] drivers/hwmon/occ: Parse OCC poll response Eddie James
2017-06-22 22:48 ` [PATCH 4/7] drivers/hwmon/occ: Add sensor types and versions Eddie James
2017-06-22 22:48 ` [PATCH 5/7] drivers/hwmon/occ: Add sensor attributes and register hwmon device Eddie James
2017-06-22 22:48 ` [PATCH 6/7] drivers/hwmon/occ: Add non-hwmon attributes Eddie James
2017-06-22 22:48 ` [PATCH 7/7] drivers/hwmon/occ: Add error handling Eddie James
2017-06-23 4:52 ` [PATCH 0/7] drivers/hwmon: Add On-Chip Controller (OCC) hwmon driver Guenter Roeck
2017-06-23 13:38 ` Eddie James
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