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smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=JiLk4jCB; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7B8AA606A31B; Tue, 27 Oct 2026 15:33:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=JiLk4jCB Received: by smtp.kernel.org (Postfix) with ESMTPSA id C04361F031E1; Tue, 27 Oct 2026 15:33:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793115205; bh=kePQCSGoUZPAj081YLFh89S7XOp8oMUOsNVfcvVBCzI=; h=Date:From:Subject:To:Cc:References:In-Reply-To; b=JiLk4jCBxsqn0zHmpyB32HK5HDL1Rp5HdpnA6sP/gNldXQKwQ6q5jktGEAiysUwqC FlTI1AnLb7DYhEa6SMytmnyfnIxmiN6luHcxb3xfxlmlpOIMiv0rABpakt4PH+fA2s gHLIAcomXue/ljCtUvdz/wXg5VxrJJwS3JHXbGtEGEprzFLg0Yu/ECRMM4ue73PThP zfBArf7jJR5Y55ZU6LffrD4Iapp6rQwDVkOEiE6RpoiVHF44P+Mi4bkaMd0jpJ0Ake vEMnB6U3slaLO7Ec2KJMUFcUe2Ot0fmMO7p88Z8Bxc51t8J8d5Zpu1s5+HlMgHLdvN bu9YBbEaWK2Dw== Message-ID: <2a29cb8e-28eb-450a-afe9-df543f99b101@kernel.org> Date: Tue, 27 Oct 2026 16:33:22 +0100 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: Krzysztof Kozlowski Subject: Re: [PATCH v10 2/6] dt-bindings: mmc: Add reset-card-at-resume property To: Ulf Hansson , linux-mmc@vger.kernel.org, Ulf Hansson Cc: Adrian Hunter , Kamal Dasu , Florian Fainelli , Wolfram Sang , Oleksij Rempel , linux-kernel@vger.kernel.org, Krzysztof Kozlowski References: <20261027144051.249211-1-ulf.hansson@oss.qualcomm.com> <20261027144051.249211-3-ulf.hansson@oss.qualcomm.com> Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 27/10/2026 15:40, Ulf Hansson wrote: > From: Kamal Dasu > > On some platforms, firmware or other hardware accesses the card > during suspend/resume, before the kernel's own resume path has run, > leaving the card in a state the kernel can no longer assume it knows. > Add a flag property so such boards can tell the mmc core the card > needs to be reset before it can be used again. > > This is expected to be paired with keep-power-in-suspend on boards > whose firmware needs the card to stay powered and live throughout > suspend: since the card is never power-cycled, nothing else would > force it back to a known state on resume. > > Signed-off-by: Kamal Dasu > Reviewed-by: Krzysztof Kozlowski Incomplete DCO, missing DT list, so not checked by automation. Please kindly resend and include all necessary To/Cc entries. Best regards, Krzysztof