linux-kernel - Re: [PATCH 2/2] hwmon: (pmbus) add MFR

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Date:   Wed, 20 Apr 2022 13:58:26 +0000
From:   wujek dev <dev_public@...ek.eu>
To:     Guenter Roeck <linux@...ck-us.net>
Cc:     Jean Delvare <jdelvare@...e.com>, linux-hwmon@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] hwmon: (pmbus) add MFR_* registers to debugfs

------- Original Message -------
On Wednesday, April 20th, 2022 at 15:53, Guenter Roeck <linux@...ck-us.net> wrote:

>
>
> On 4/20/22 05:22, Adam Wujek wrote:
>
> > Add registers to debugfs:
> > PMBUS_MFR_ID
> > PMBUS_MFR_MODEL
> > PMBUS_MFR_REVISION
> > PMBUS_MFR_LOCATION
> > PMBUS_MFR_DATE
> > PMBUS_MFR_SERIAL
> >
> > Signed-off-by: Adam Wujek dev_public@...ek.eu
>
>
> Where is patch 1/2, and why did you resend this patch ?
>
There should be no "1/2" since this and the second patch are unrelated.
I resend it because I rebased it on master.

Adam

> Guenter
>
> > ---
> > drivers/hwmon/pmbus/pmbus_core.c | 84 ++++++++++++++++++++++++++++++++
> > 1 file changed, 84 insertions(+)
> >
> > diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c
> > index 0af7a3d74f47..1dc186780ccf 100644
> > --- a/drivers/hwmon/pmbus/pmbus_core.c
> > +++ b/drivers/hwmon/pmbus/pmbus_core.c
> > @@ -2625,6 +2625,30 @@ static int pmbus_debugfs_get_status(void *data, u64 *val)
> > DEFINE_DEBUGFS_ATTRIBUTE(pmbus_debugfs_ops_status, pmbus_debugfs_get_status,
> > NULL, "0x%04llx\n");
> >
> > +static ssize_t pmbus_debugfs_mfr_read(struct file *file, char __user *buf,
> > + size_t count, loff_t *ppos)
> > +{
> > + int rc;
> > + struct pmbus_debugfs_entry *entry = file->private_data;
> > + char data[I2C_SMBUS_BLOCK_MAX + 2] = { 0 };
> > +
> > + rc = i2c_smbus_read_block_data(entry->client, entry->reg, data);
> > + if (rc < 0)
> > + return rc;
> > +
> > + data[rc] = '\n';
> > + rc += 2;
> > +
> > + return simple_read_from_buffer(buf, count, ppos, data, rc);
> > +}
> > +
> > +static const struct file_operations pmbus_debugfs_ops_mfr = {
> > + .llseek = noop_llseek,
> > + .read = pmbus_debugfs_mfr_read,
> > + .write = NULL,
> > + .open = simple_open,
> > +};
> > +
> > static int pmbus_debugfs_get_pec(void *data, u64 *val)
> > {
> > struct i2c_client *client = data;
> > @@ -2801,6 +2825,66 @@ static int pmbus_init_debugfs(struct i2c_client *client,
> > &entries[idx++],
> > &pmbus_debugfs_ops);
> > }
> > +
> > + if (pmbus_check_byte_register(client, i, PMBUS_MFR_ID)) {
> > + entries[idx].client = client;
> > + entries[idx].page = i;
> > + entries[idx].reg = PMBUS_MFR_ID;
> > + scnprintf(name, PMBUS_NAME_SIZE, "mfr%d_id", i);
> > + debugfs_create_file(name, 0444, data->debugfs,
> > + &entries[idx++],
> > + &pmbus_debugfs_ops_mfr);
> > + }
> > +
> > + if (pmbus_check_byte_register(client, i, PMBUS_MFR_MODEL)) {
> > + entries[idx].client = client;
> > + entries[idx].page = i;
> > + entries[idx].reg = PMBUS_MFR_MODEL;
> > + scnprintf(name, PMBUS_NAME_SIZE, "mfr%d_model", i);
> > + debugfs_create_file(name, 0444, data->debugfs,
> > + &entries[idx++],
> > + &pmbus_debugfs_ops_mfr);
> > + }
> > +
> > + if (pmbus_check_byte_register(client, i, PMBUS_MFR_REVISION)) {
> > + entries[idx].client = client;
> > + entries[idx].page = i;
> > + entries[idx].reg = PMBUS_MFR_REVISION;
> > + scnprintf(name, PMBUS_NAME_SIZE, "mfr%d_revision", i);
> > + debugfs_create_file(name, 0444, data->debugfs,
> > + &entries[idx++],
> > + &pmbus_debugfs_ops_mfr);
> > + }
> > +
> > + if (pmbus_check_byte_register(client, i, PMBUS_MFR_LOCATION)) {
> > + entries[idx].client = client;
> > + entries[idx].page = i;
> > + entries[idx].reg = PMBUS_MFR_LOCATION;
> > + scnprintf(name, PMBUS_NAME_SIZE, "mfr%d_location", i);
> > + debugfs_create_file(name, 0444, data->debugfs,
> > + &entries[idx++],
> > + &pmbus_debugfs_ops_mfr);
> > + }
> > +
> > + if (pmbus_check_byte_register(client, i, PMBUS_MFR_DATE)) {
> > + entries[idx].client = client;
> > + entries[idx].page = i;
> > + entries[idx].reg = PMBUS_MFR_DATE;
> > + scnprintf(name, PMBUS_NAME_SIZE, "mfr%d_date", i);
> > + debugfs_create_file(name, 0444, data->debugfs,
> > + &entries[idx++],
> > + &pmbus_debugfs_ops_mfr);
> > + }
> > +
> > + if (pmbus_check_byte_register(client, i, PMBUS_MFR_SERIAL)) {
> > + entries[idx].client = client;
> > + entries[idx].page = i;
> > + entries[idx].reg = PMBUS_MFR_SERIAL;
> > + scnprintf(name, PMBUS_NAME_SIZE, "mfr%d_serial", i);
> > + debugfs_create_file(name, 0444, data->debugfs,
> > + &entries[idx++],
> > + &pmbus_debugfs_ops_mfr);
> > + }
> > }
> >
> > return devm_add_action_or_reset(data->dev,
> > --
> > 2.25.1