From: Wan ZongShun <mcuos.com@gmail.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Wan Zongshun <vw@iommu.org>,
linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
Russell King <linux@armlinux.org.uk>,
devicetree@vger.kernel.org, linux-clk@vger.kernel.org,
Jason Cooper <jason@lakedaemon.net>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
linux-kernel <linux-kernel@vger.kernel.org>,
p.zabel@pengutronix.de, Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH v2 06/10] soc: Add SoC specific driver support for nuc900
Date: Mon, 11 Jul 2016 18:28:57 +0800 [thread overview]
Message-ID: <CAKT61h_vxcvVqqaDOn2XgtF7cBEpziSjfHRaY3eCWmM1ATfDXw@mail.gmail.com> (raw)
In-Reply-To: <1606219.BzcByuFgJm@wuerfel>
2016-07-11 18:24 GMT+08:00 Arnd Bergmann <arnd@arndb.de>:
> On Monday, July 11, 2016 5:07:01 PM CEST Wan Zongshun wrote:
>>
>> On 2016年07月11日 16:03, Arnd Bergmann wrote:
>> > On Sunday, July 10, 2016 3:27:26 PM CEST Wan Zongshun wrote:
>> >> + ret = of_property_read_string(np, "compatible", &soc_dev_attr->soc_id);
>> >> + if (ret)
>> >> return -EINVAL;
>> >> +
>> >> + soc_dev_attr->machine = "NUC900EVB";
>> >> + soc_dev_attr->family = "NUC900";
>> >> + soc_dev = soc_device_register(soc_dev_attr);
>> >> + if (IS_ERR(soc_dev)) {
>> >> + kfree(soc_dev_attr);
>> >> + return -ENODEV;
>> >> + }
>> >> +
>> >> + ret = regmap_read(syscon_regmap, GCR_CHIPID, &nuc900_chipid);
>> >> + if (ret)
>> >> + return -ENODEV;
>> >> +
>> >> + device_create_file(soc_device_to_device(soc_dev), &nuc900_chipid_attr);
>> >> + device_create_file(soc_device_to_device(soc_dev), &nuc900_version_attr);
>> >> +
>> >> + dev_info(&pdev->dev, "Nuvoton Chip ID: 0x%x, Version ID:0x%x\n",
>> >> + nuc900_chipid & GCR_CHIPID_MASK,
>> >> + (nuc900_chipid >> 24) & 0xff);
>> >
>> > I'm still a bit unsure about the set of attributes here.
>> >
>> > - The "soc_id" is read from the device tree from the field that contains
>> > the board name, I think for consistency you should try to map the
>> > GCR_CHIPID to the name of the SoC and assign that here
>>
>> I will try to get chipid and map it to soc name like: “nuc970”, "nuc910".
>>
>> And I will set this soc name to soc_id, ok?
>
> Ok.
Maybe I also can set versionid as soc name partly, like
nuc970-version1,nuc970-version2? and then set the to soc_id, make
sense?
>
>> > - The "machine" is hardcoded to "NUC900EVB", which in turn looks like
>> > a particular board but not the one you are running on. Maybe read
>> > that from the DT instead?
>>
>> Should I read nuc970-evb.dts's "model" or "compatible" properties?
>
> I think "model" is best here, but see what the others do.
>
> Arnd
>
--
---
Vincent Wan(Zongshun)
www.mcuos.com
next prev parent reply other threads:[~2016-07-11 10:29 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-10 7:27 [PATCH v2 00/10] ARM: NUC900: Add NUC970 SoC support Wan Zongshun
2016-07-10 7:27 ` [PATCH v2 01/10] ARM: NUC900: Add nuc970 machine support Wan Zongshun
2016-07-10 22:11 ` Arnd Bergmann
2016-07-11 16:04 ` Arnd Bergmann
2016-07-12 4:30 ` Wan Zongshun
2016-07-12 7:14 ` Wan Zongshun
2016-07-12 8:23 ` Arnd Bergmann
2016-07-10 7:27 ` [PATCH v2 02/10] irqchip: add irqchip driver for nuc900 Wan Zongshun
2016-07-10 21:51 ` Paul Gortmaker
2016-07-11 2:19 ` Wan Zongshun
2016-07-11 15:46 ` Arnd Bergmann
2016-07-12 7:04 ` Wan Zongshun
2016-07-12 8:26 ` Arnd Bergmann
2016-07-14 8:52 ` Wan Zongshun
2016-07-14 11:09 ` Arnd Bergmann
2016-07-13 20:09 ` Jason Cooper
2016-07-14 3:36 ` Wan Zongshun
2016-07-14 13:54 ` Jason Cooper
2016-07-15 5:15 ` Wan Zongshun
2016-07-15 7:00 ` Arnd Bergmann
2016-07-15 9:44 ` Wan ZongShun
2016-07-15 10:02 ` Arnd Bergmann
2016-07-21 18:45 ` Jason Cooper
2016-07-15 15:45 ` Jason Cooper
2016-07-10 7:27 ` [PATCH v2 03/10] Clocksource: add nuc970 clocksource driver Wan Zongshun
2016-07-11 15:36 ` Arnd Bergmann
2016-07-12 7:32 ` Wan Zongshun
2016-07-12 8:28 ` Arnd Bergmann
2016-07-21 12:52 ` Daniel Lezcano
2016-07-21 12:54 ` Arnd Bergmann
2016-07-10 7:27 ` [PATCH v2 04/10] clk: add Clock driver for nuc970 Wan Zongshun
2016-07-11 22:14 ` Michael Turquette
2016-07-10 7:27 ` [PATCH v2 05/10] power/reset: Add reset driver support for nuc900 Wan Zongshun
2016-07-10 21:56 ` Paul Gortmaker
2016-07-11 2:30 ` Wan Zongshun
2016-07-11 2:58 ` Paul Gortmaker
2016-07-10 7:27 ` [PATCH v2 06/10] soc: Add SoC specific " Wan Zongshun
2016-07-11 8:03 ` Arnd Bergmann
2016-07-11 9:07 ` Wan Zongshun
2016-07-11 10:24 ` Arnd Bergmann
2016-07-11 10:28 ` Wan ZongShun [this message]
2016-07-11 10:36 ` Arnd Bergmann
2016-07-12 9:06 ` Wan Zongshun
2016-07-12 9:50 ` Arnd Bergmann
2016-07-10 7:27 ` [PATCH v2 07/10] ARM: dts: Add clock header file into dt-bindings Wan Zongshun
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