From: Dan Williams <dan.j.williams@intel.com>
To: Oliver O'Halloran <oohall@gmail.com>
Cc: linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
linux-nvdimm <linux-nvdimm@lists.01.org>
Subject: Re: [RESEND v2 2/4] libnvdimm: Add device-tree based driver
Date: Tue, 3 Apr 2018 10:34:48 -0700 [thread overview]
Message-ID: <CAPcyv4i4w0qXwM338MeKaUWJmHdg6OqAotc+=Xsa7zhHGT7Thg@mail.gmail.com> (raw)
In-Reply-To: <20180403142415.30083-2-oohall@gmail.com>
On Tue, Apr 3, 2018 at 7:24 AM, Oliver O'Halloran <oohall@gmail.com> wrote:
> This patch adds peliminary device-tree bindings for persistent memory
> regions. The driver registers a libnvdimm bus for each pmem-region
> node and each address range under the node is converted to a region
> within that bus.
>
> Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
> ---
> v2: Made each bus have a separate node rather having a shared bus.
> Renamed to of_pmem rather than of_nvdimm.
> Changed log level of happy-path messages to debug.
> ---
[..]
> +static struct platform_driver of_nd_region_driver = {
> + .probe = of_nd_region_probe,
> + .remove = of_nd_region_remove,
> + .driver = {
> + .name = "of_pmem",
> + .owner = THIS_MODULE,
> + .of_match_table = of_nd_region_match,
> + },
> +};
This and the other patches look good to me. Just a nit on the
naming... since you name the regions pmem-regions in the device-tree
description shouldn't this be the "of_pmem_region" or "of_pmem_range"
driver? Otherwise, it is confusing to me that anything named
*nd_region would be creating an nvdimm_bus. In general An nd_region is
always a child of a bus.
That said, with an ack/reviewed-by on the device-tree bindings I can
take these through the nvdimm tree. I'll reply to patch 4 with that
request for ack.
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next prev parent reply other threads:[~2018-04-03 17:34 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-03 14:24 [RESEND v2 1/4] libnvdimm: Add of_node to region and bus descriptors Oliver O'Halloran
2018-04-03 14:24 ` [RESEND v2 2/4] libnvdimm: Add device-tree based driver Oliver O'Halloran
2018-04-03 17:34 ` Dan Williams [this message]
2018-04-03 14:24 ` [RESEND v2 3/4] doc/devicetree: Persistent memory region bindings Oliver O'Halloran
2018-04-03 17:37 ` Dan Williams
2018-04-04 12:07 ` Balbir Singh
2018-04-04 14:04 ` Oliver
2018-04-04 14:21 ` Dan Williams
2018-04-05 4:43 ` Balbir Singh
2018-04-05 11:34 ` Oliver
2018-04-05 12:11 ` Michael Ellerman
2018-04-05 12:43 ` Oliver
2018-04-05 14:43 ` Dan Williams
2018-04-06 2:14 ` Oliver
2018-04-06 2:25 ` Dan Williams
2018-04-06 3:57 ` Benjamin Herrenschmidt
2018-04-03 14:24 ` [RESEND v2 4/4] powerpc/powernv: Create platform devs for nvdimm buses Oliver O'Halloran
2018-04-04 12:20 ` Balbir Singh
2018-04-04 11:30 ` [RESEND v2 1/4] libnvdimm: Add of_node to region and bus descriptors Balbir Singh
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