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[144.49.247.26]) by smtp-relay.gmail.com with ESMTPS id 71dfb90a1353d-5c3d0720641sm216627e0c.6.2026.08.04.13.38.28 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 04 Aug 2026 13:38:29 -0700 (PDT) X-Relaying-Domain: broadcom.com X-CFilter-Loop: Reflected Received: by mail-qv1-f71.google.com with SMTP id 6a1803df08f44-907a1e04111so2716716d6.2 for ; Tue, 04 Aug 2026 13:38:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; t=1785875908; x=1786480708; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to:content-type; bh=7b6+tGrp8ymCoXe9JGu+0YvTkdgKzEYKK8fFBsOhsEE=; b=Dxf+ReDHAzckB/QE7hwm2XpDeZEvioDuAMbcY23E5NcgUSzsfogvuROwPhuaUEyXqZ RmTaAocN1UKFIZefMMrodPgdk3LDeXdzz5kDirBd2M7vVdnVTDNh9ItQsWO7bxZkFgrr w9NwY8dpJJwO0XdBsrtydBPfWz2lF+MVJnVCc= X-Forwarded-Encrypted: i=1; AHgh+RpI7DL9LDNFO/FKAVQuOmvfGd8hoUHIPhW19ZpIhkn9l+kRsQdHjXAYIk0DBN0EcNQXmMc4G2uBkrb9@vger.kernel.org X-Received: by 2002:a05:620a:a493:b0:934:afce:cb36 with SMTP id af79cd13be357-9364906e044mr115287585a.13.1785875907872; Tue, 04 Aug 2026 13:38:27 -0700 (PDT) X-Received: by 2002:a05:620a:a493:b0:934:afce:cb36 with SMTP id af79cd13be357-9364906e044mr115283485a.13.1785875907302; Tue, 04 Aug 2026 13:38:27 -0700 (PDT) Received: from mail.broadcom.net ([192.19.144.250]) by smtp.gmail.com with ESMTPSA id af79cd13be357-9364a52dbeesm11089085a.30.2026.08.04.13.38.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 04 Aug 2026 13:38:25 -0700 (PDT) From: Kamal Dasu To: Ulf Hansson Cc: Kamal Dasu , Florian Fainelli , Wolfram Sang , Oleksij Rempel , Avri Altman , Pedro Demarchi Gomes , Erick Shepherd , Adrian Hunter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v6 1/3] dt-bindings: mmc: Extend keep-power-in-suspend beyond SDIO Date: Tue, 4 Aug 2026 16:38:16 -0400 Message-Id: <20260804203818.881765-2-kamal.dasu@broadcom.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260804203818.881765-1-kamal.dasu@broadcom.com> References: <20260804203818.881765-1-kamal.dasu@broadcom.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-DetectorID-Processed: b00c1d49-9d2e-4205-b15f-d015386d3d5e keep-power-in-suspend is currently documented as SDIO-only, but the requirement it describes -- preserving card power across a suspend/resume cycle -- applies just as well to any card type. Drop the SDIO-only restriction so eMMC and SD platforms can use it too. Signed-off-by: Kamal Dasu --- Changes in v6: - Split into a separate, minimal patch per Ulf: just extend keep-power-in-suspend's scope, with no brcmstb/firmware-specific rationale in its description. That rationale now lives in the new reset-card-at-resume property instead (patch 2/3), and the two are set together on brcmstb rather than folded into one property. - Also per Ulf (applies to v4 and v5 alike): dropped the mention of sdio_set_host_pm_flags() and how Linux's SDIO stack happens to expose this at runtime -- that's a software implementation detail, not a hardware/platform description. Changes in v5: - Added Krzysztof's Reviewed-by. Changes in v4: - Dropped no-mmc-poweroff-suspend entirely and extended keep-power-in-suspend instead, per Krzysztof: the two properties described the same "don't power off across suspend/resume" contract. Changes in v3: - Renamed from no-mmc-sleep; dropped S_A_TIMEOUT framing per Ulf. Changes in v2: - New patch, replacing v1's card-level quirk, per Ulf. Documentation/devicetree/bindings/mmc/mmc-controller-common.yaml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/mmc/mmc-controller-common.yaml b/Documentation/devicetree/bindings/mmc/mmc-controller-common.yaml index 3d7195e9461c..c18bf0d6a56e 100644 --- a/Documentation/devicetree/bindings/mmc/mmc-controller-common.yaml +++ b/Documentation/devicetree/bindings/mmc/mmc-controller-common.yaml @@ -291,7 +291,7 @@ properties: keep-power-in-suspend: $ref: /schemas/types.yaml#/definitions/flag description: - SDIO only. Preserves card power during a suspend/resume cycle. + Preserves card power during a suspend/resume cycle. wakeup-source: $ref: /schemas/types.yaml#/definitions/flag -- 2.34.1