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Mon, 05 May 2025 02:28:01 +0200 Message-ID: <6cbabcc6-a5e8-43d1-8398-1b272384841d@gmx.de> Date: Mon, 5 May 2025 02:27:59 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: Suspend/resume failing due to SPD5118 To: Guenter Roeck , Luca Carlon Cc: jdelvare@suse.com, linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org, lucas.demarchi@intel.com References: <9625330e-e3e9-49ea-9979-653091dfbe16@gmx.de> <20250504184117.4795-1-carlon.luca@gmail.com> <310fe3a3-e585-46e0-aae7-3e4d41af1f53@roeck-us.net> Content-Language: en-US From: Armin Wolf In-Reply-To: <310fe3a3-e585-46e0-aae7-3e4d41af1f53@roeck-us.net> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:yOcn1uPogfJJl7+uL12LnnDKiz+FN3ca/Jrqefb5dZOLKd+Mrp8 1rzKOgJtZbXxSTrxfiTLctzy8qc4w3z2JOHkIwa8cs0ozTntfCLQc2D5b6ifPodiyP/WJ3x uRhMMxCI9wHFxiq6wO0dqT3JbeU3fKsS55m39CIocUevh61clRr8Z6emao6Um80YSzpUl3k W8euxIBp2zQpVyb5wfRNg== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:KrYgkjHguME=;IxYAPBEhOzhiEsFsKVVpJyXIiqx udH3NHsWrGhLN5h4Lt98A7cJzRzglGlY0xqRed+iiH2kKpa0uOWT4pRb+qktHONuyX0pYPcVx hZwkyUTgYR08MWRLmHGe3Tij77pBE22NITM4SfvguScKfDVuOuB5mflmKphEbXqerh6eH8hxs bod/mM+MO7a8rEB59n4mPw6sdrrQXjvXwi91RsAKAhwfDKFT3chxH7skDp9+1PbrlPRNbElql lZU2WmjdP30v3G+4oMDIFUOyche//BF4D5kJ70nFbhG7a5apO41qLxB4xulO/kczxWPzH0Dg2 YToJ9bPZ1pqVL61iq83SB4UMFhVj3mH41beGFCgz7Dp7mH1tmqcsTTA5qbx6Ft8dmG8pGRhDi PpKKJ3TxUZYWCWhpdkqeKyoY/fWtOGl8LARQIbattsQQBi6PVlxlelIYt00xLwWWs2UrZOU16 ew2W+W8k7FoDgy/Bf39ykofJA9ely9ri0A4M1PxVd9rbUb0HmriNRdk/ADHh7RfhhU8mY4deV kfACfSGHr4O9o5ymHco5Zx5FD20sBAtbSRe+hNyr9ACLj/iPHCwLJMOqySEZyrsVNmvNFs7l5 Uh4K87qki+uuHpq8u029gbKRwSQYV2xpqNn2kjgn5lswsav3vAbeysrgYUHxNCBVBwTsbPp+z VLQakmtpZRQWrm7ALprc+LEd5zVoTibUBE0Ofw1QMsYaVng+FdIVp80QSX++lJw1/hQSn47in cJjaQwJ4+eH3Sd8iT5AGSVGgaQrFbqoJSzV6e7tqaUa2VGR0ntACnNkSzG19OAoFOC7/K5jTG TZcQjZ3Oo13rx5Ne14tAo7FqlEh6CmvR2arVeRSRneX08rO7NYWj60S8uo38/N1aOFVU9TrIY l37ZAiJY/YoUmplwGp/DkiVzyJRG9X9m6iTrgTDnnmMlyLDXxFWvPeVmEY6dCr7DS1+DXertB 6KCiCzT3zUwRMQvgwut7UGEZvLP4ZrrlwrgR/gKqk+SwIYmbaMTz9ovWhjvPOAO7Pylvuk/sj SelkIw6ZLbR+pxhyFVtTovtOU8eoB7vNCgZ64mTOauKC1lAGbpgpHyF5an+6+7xbiWurqlaw+ r955K3fB3iv2JcRGxGsaN+ngQ2zN/5ddaiB8G71zJtxWYfzSm/Swe7M0XEmuMCg6/jTjWkwPj 1DD41t2OaHnVqXX9Gw2a9z9UypkzUVfrjKUoINFC3CnpScNPeBCHo985rTj+3fzLYE1x9v9jh GgtBka6AJc5Qfc5MwNXh97xgJVY/yRUYfwsfyH/1TJKuURxxyz+oFRstTkynWsEXvcCU5bj2U 8eeJrjm2UOLZAcaeP3AtaFC6Yaz6nLatBnNA/GFz3KlQOZyKy9OrUk0qUySYPdnewD/GAq0sW 2albYHKPB25c4nbxdUI0f6YeA7i8QeqYt8eBlH0x9/N1HdGjMzBw2jnLCoSQu1JbR3/oHRsKc NlyslsZD0CP7U4PKPo8dlnAUKqK1HUobu1+kFU5v0dfQ9CNBgcflDYciTZ3vgDxCd5e4+MmhQ sXOhJY6aMRD5PvAdkzCJuhaAX/JefiMFoc0nv3p0nPQB6xGlfoB/O7ohDvkPmQfA/9YGkZ70Z 5PFEUxD2v0e7ZeLob4shfNLc69Irxw7gsF1+z2UstE4W87KtHPKeebT/Q/tCKYdKP2PbdCfrI xw7LR+f3CXDtYx+u5kaXBCGS6DS1H/CyZlVvaZjX9q92olUO8AnkqULeuv6NB22CI4hm91FzA eukeVyD3dHTRmAcABOIfGxajhN+UbX2LnTmAETRJfkVSfxy1OeC629QR5AIz5BWvK8YxdI/WQ AGbVMFL1W5XBTKEF2QGZPhgw+7CV2M75OEpE8ciSKbJtau+Ofvi2mp/t+K21thSxkZJiUwJ9m rCOJBPdw1XAiFYDVNL8+OAw93DXqZRGTbki/LWyhjGHEoUxYspQpkmxoiu4f8Sq7itUOofskH MK36fiKKOJaYlAYn4x5JiDF89ZyC7E4pr9LmOftJY9r5Q4ggxedeaO/Wd3zpXqDIzBqFVw4MS 8VTtiLl6/BGb2t47r56YOo7MEuNLkyaiqKdM9gQt9Te5ha5DV+QZbkKVbi9k752InRewGFNAN aUMKsK8ThTH13oJpOKs9ZC/H8IXyRANQCE9VwzDV+MnYMgTQYBoiKzro6tTlwXME/kTTk1sD/ UxeEIwN+rraDUUQjT8eCgdr1nrWq4q5H2T95+69lK8OUnhsUYmfyWQb8jIJthZN3pm7uXHJwn UYCFK111uiXZba8CM3GHCdQrzwnA505cL3eLrUBB3gYdPPbkg/zhjbXxp10bFUQXgjVrA8VPV VrbJwr028kAqym7LHJ7O1/PA/By/fheTSkVx7cCTBxvTC+F9ksQ2ggMX7aNUPsthZo8o2ykMu JOhf5/UoE2InPUQSU9ONo3j+MLOMnI05aCLBH7tWPmrIIIrnfPV9ycVlblG9jAuINMyhWg+wg wh/cITSAKE4M9K5nGrBo/tqzq3nvbLXGENXAItFsaY6/p2+ujjLtlUw8tLZqJtlaHr8tvswAC zNuI88c6OQHXX7Sy+WA4aE9ZTLcKDCskdRSweX0V2P6cT8991N0A1WeXjUa1AfEEPoqNJgz5E ToDZDhR4Aig55Mp523nLv+2z62yB+BdfEMzvzNhHUi3FqJU4elzbDIkxWXH1I2bviTANoNsvn HrPmmSEpyY1k5wPD08BCnhHOQQFj5QAn63w9ClVIWesvtxdDUfzcGM1x3zPPkPTp0LClzHykt vUggwjV2N3aBrZD3aVskC1fzTqYdPiFGKcafmqmMcojUo52KFV+02nIieoAHL5GndEv+SROhY 9L4Ji5KBu3MgbKc33klI5bD5Q1h6YRT5Mnm/0rduhTTIkqPK9+UR1crG6whpKEcnUOeBDinWV EhR1mtreN9yaMDJz3ucAkl5St0F7UaeWf3AQ7/yMVgrEZvFsB43gG1lpojR0APxwA8O2r9wv/ YFBSnmqCEqLIY2PFywdp3GCqQpOJLZXk/SZdrTgzWmukVLR/R5LR4nDf8W6p9/wcmZeHQlOrB yS54aUsf00+Q8/7cOPdqj5E5EHXxeWvpe/t+9Cnt0pn Am 05.05.25 um 01:31 schrieb Guenter Roeck: > On 5/4/25 11:41, Luca Carlon wrote: > ... >> When I was told that the problem may lie in the i2c bus, I started to= =20 >> search elsewhere >> and this thread came up:=20 >> https://bugzilla.kernel.org/show_bug.cgi?id=3D213345. I >> therefore provided in that thread some more info I collected. >> > > From there: > > [=C2=A0=C2=A0=C2=A0 5.416572] i801_smbus 0000:00:1f.4: SPD Write Disable= is set > > I think you are out of luck. The above is incompatible with spd5118=20 > devices; > See [1] for details. I don't immediately see why that would cause the=20 > i2c bus > to lock up, but even if it didn't lock up the bus I don't see a means=20 > to get > this to work. > > It is still puzzling that reading the i2c data using i2cdump fails.=20 > The spd5118 > driver should not even probe if that is the case. Maybe Armin has an=20 > idea. > > Guenter I have an idea, see the bugzilla post for details. Thanks, Armin Wolf > > --- > [1]=20 > https://lore.kernel.org/linux-i2c/20250430-for-upstream-i801-spd5118-no-= instantiate-v2-0-2f54d91ae2c7@canonical.com/ > >