From: Armin Wolf <W_Armin@gmx.de>
To: "Wolfram Sang" <wsa+renesas@sang-engineering.com>,
"Guenter Roeck" <linux@roeck-us.net>,
"Paul Menzel" <pmenzel@molgen.mpg.de>,
linux-kernel@vger.kernel.org, "René Rebe" <rene@exactcode.de>,
"Thomas Weißschuh" <linux@weissschuh.net>,
"Stephen Horvath" <s.horvath@outlook.com.au>,
"Sasha Kozachuk" <skozachuk@google.com>,
"John Hamrick" <johnham@google.com>,
"Chris Sarra" <chrissarra@google.com>,
linux-hwmon@vger.kernel.org, "Jean Delvare" <jdelvare@suse.com>
Subject: Re: [RFT PATCH v2 2/3] hwmon: (spd5118) Use spd5118 specific read/write operations
Date: Wed, 19 Jun 2024 01:28:37 +0200 [thread overview]
Message-ID: <4755d088-7eab-47ca-923c-db1fdf3611ab@gmx.de> (raw)
In-Reply-To: <omsjeb6zbkcdhh4a3urjdrdeyj2kczb734tbhxwdcvngzlm7pe@dzdphvmm6asq>
Am 19.06.24 um 00:28 schrieb Wolfram Sang:
>> to 86 degrees C. If that doesn't work, we'll be really out of luck
>> with that controller (or at least I don't have an idea what else to try).
> Try CCing Heiner Kallweit for ideas about the i801 controller.
>
Hi,
i am not Heiner Kallweit, but i found something interesting in
commit ba9ad2af7019 ("i2c: i801: Fix I2C Block Read on 8-Series/C220 and later").
Basically, it seems that the i802 i2c controller indeed features a SPD write disable bit
which blocks all writes for slave addresses 0x50-0x57.
Does the i801 i2c controller driver print something like "SPD Write Disable is set" during
boot?
Thanks,
Armin Wolf
next prev parent reply other threads:[~2024-06-18 23:29 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-18 19:53 [RFT PATCH v2 0/3] hwmon: (spd5118) Various improvements Guenter Roeck
2024-06-18 19:53 ` [RFT PATCH v2 1/3] hwmon: (spd5118) Use regmap to implement paging Guenter Roeck
2024-06-18 19:53 ` [RFT PATCH v2 2/3] hwmon: (spd5118) Use spd5118 specific read/write operations Guenter Roeck
2024-06-18 20:37 ` Paul Menzel
2024-06-18 21:08 ` Guenter Roeck
2024-06-18 21:45 ` Paul Menzel
2024-06-18 22:37 ` Guenter Roeck
2024-06-18 22:59 ` Paul Menzel
2024-06-18 22:28 ` Wolfram Sang
2024-06-18 23:28 ` Armin Wolf [this message]
2024-06-18 23:39 ` Paul Menzel
2024-06-19 0:23 ` Guenter Roeck
2024-06-19 0:50 ` Thomas Weißschuh
2024-06-19 1:02 ` Guenter Roeck
2024-06-19 9:13 ` Thomas Weißschuh
2024-06-19 14:18 ` Guenter Roeck
2024-06-18 19:53 ` [RFT PATCH v2 3/3] hwmon: (spd5118) Add support for Renesas/ITD SPD5118 hub controllers Guenter Roeck
2024-06-18 20:59 ` [RFT PATCH v2 0/3] hwmon: (spd5118) Various improvements Armin Wolf
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