From: Patrick Williams <patrick@stwcx.xyz>
To: Guenter Roeck <linux@roeck-us.net>
Cc: Manikandan Elumalai <manikandan.hcl.ers.epl@gmail.com>,
linux-hwmon@vger.kernel.org, linux-aspeed@lists.ozlabs.org,
linux-kernel@vger.kernel.org, openbmc@lists.ozlabs.org,
manikandan.e@hcl.com, saipsdasari@fb.com, patrickw3@fb.com,
vijaykhemka@fb.com
Subject: Re: [PATCH v2] hwmon:(adm1275) Enable adm1278 ADM1278_TEMP1_EN
Date: Fri, 29 May 2020 12:42:10 -0500 [thread overview]
Message-ID: <20200529174210.GF17541@heinlein> (raw)
In-Reply-To: <49485085-7cc7-9e29-a719-98d1e184378b@roeck-us.net>
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Hi Guenter,
Thanks for the initial look at this.
One question for you below...
On Fri, May 29, 2020 at 10:30:16AM -0700, Guenter Roeck wrote:
> On 5/29/20 5:46 AM, Manikandan Elumalai wrote:
> > + /* Enable TEMP1 by default */
> > + config |= ADM1278_TEMP1_EN;
> > + ret = i2c_smbus_write_byte_data(client,
> > + ADM1275_PMON_CONFIG,
> > + config);
> > + if (ret < 0) {
> > + dev_err(&client->dev,
> > + "Failed to enable temperature config\n");
> > + return -ENODEV;
> > + }
>
> This can be handled in a single operation, together with ADM1278_VOUT_EN
> below. There is no need for two separate write operations.
I don't know if you noticed here but the change ends up enabling
TEMP1_EN in all cases. Is this acceptable? If not, do you have any
preference on how it is selected for enablement?
> > /* Enable VOUT if not enabled (it is disabled by default) */
> > if (!(config & ADM1278_VOUT_EN)) {
> > @@ -681,9 +697,6 @@ static int adm1275_probe(struct i2c_client *client,
> > }
> > }
> >
> > - if (config & ADM1278_TEMP1_EN)
> > - info->func[0] |=
> > - PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP;
> > if (config & ADM1278_VIN_EN)
> > info->func[0] |= PMBUS_HAVE_VIN;
> > break;
> >
>
--
Patrick Williams
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next prev parent reply other threads:[~2020-05-29 17:42 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-29 12:46 [PATCH v2] hwmon:(adm1275) Enable adm1278 ADM1278_TEMP1_EN Manikandan Elumalai
2020-05-29 17:30 ` Guenter Roeck
2020-05-29 17:42 ` Patrick Williams [this message]
2020-05-29 18:52 ` Guenter Roeck
2020-06-05 16:48 ` Manikandan
2020-06-05 18:04 ` Guenter Roeck
2020-06-06 5:13 ` Manikandan
2020-05-29 17:57 ` Vijay Khemka
2020-05-29 18:55 ` Guenter Roeck
2020-05-29 23:47 ` Vijay Khemka
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