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From: Wolfram Sang <wsa@kernel.org>
To: Marius Hoch <mail@mariushoch.de>
Cc: Jean Delvare <jdelvare@suse.com>,
	linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/2] i2c: i801: Force no IRQ for Dell Latitude E7450
Date: Sun, 29 Oct 2023 18:17:06 +0100	[thread overview]
Message-ID: <ZT6TknMc+34NCqPG@shikoro> (raw)
In-Reply-To: <20230514103634.235917-1-mail@mariushoch.de>

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On Sun, May 14, 2023 at 12:36:32PM +0200, Marius Hoch wrote:
> The Dell Latitude E7450 uses IRQ 18 for the accelerometer,
> but also claims that the SMBus uses IRQ 18. This will
> result in:
> 
> i801_smbus 0000:00:1f.3: PCI INT C: failed to register GSI
> i801_smbus 0000:00:1f.3: Failed to enable SMBus PCI device (-16)
> i801_smbus: probe of 0000:00:1f.3 failed with error -16
> 
> Force the SMBus IRQ to IRQ_NOTCONNECTED in this case, so that
> we fall back to polling, which also seems to be what the (very
> dated) Windows 7 drivers on the Dell Latitude E7450 do.
> 
> This was tested on Dell Latitude E7450.
> 
> I chose to explicitly list all affected devices here, but
> alternatively it would be possible to do this programmatically:
> If the initial pcim_enable_device fails and we're on (any)
> Dell Latitude, re-try with IRQ_NOTCONNECTED.
> 
> Marius Hoch (2):
>   i2c: i801: Force no IRQ for Dell Latitude E7450
>   i2c: i801: Force no IRQ for further Dell Latitudes
> 
>  drivers/i2c/busses/i2c-i801.c | 34 ++++++++++++++++++++++++++++++++++
>  1 file changed, 34 insertions(+)

Where are we with this patch set? Other solution found already?
Discussion stalled? Too much other things going on?


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      parent reply	other threads:[~2023-10-29 17:17 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-14 10:36 [PATCH 0/2] i2c: i801: Force no IRQ for Dell Latitude E7450 Marius Hoch
2023-05-14 10:36 ` [PATCH 1/2] " Marius Hoch
2023-05-14 12:06   ` kernel test robot
2023-05-14 12:06   ` kernel test robot
2023-06-04 14:38   ` Jean Delvare
2023-06-18 13:08     ` Marius Hoch
2023-05-14 10:36 ` [PATCH 2/2] i2c: i801: Force no IRQ for further Dell Latitudes Marius Hoch
2023-05-23 18:03 ` [PATCH 0/2] i2c: i801: Force no IRQ for Dell Latitude E7450 Jean Delvare
2023-06-03  9:24   ` Marius Hoch
2023-06-04 14:01     ` Jean Delvare
2023-06-04 14:31       ` Jean Delvare
2023-06-04 20:41       ` Rudolf Marek
2023-06-18 12:52         ` Marius Hoch
2023-06-18 13:42       ` Marius Hoch
2023-06-19 15:19         ` Jean Delvare
2023-07-19 19:27         ` Pali Rohár
2023-10-29 17:17 ` Wolfram Sang [this message]

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