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[209.132.180.67]) by mx.google.com with ESMTP id u3-v6si4652450plq.254.2018.01.23.04.00.44; Tue, 23 Jan 2018 04:00:45 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of devicetree-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=neutral (body hash did not verify) header.i=@linaro.org header.s=google header.b=SWW2acvt; spf=pass (google.com: best guess record for domain of devicetree-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=devicetree-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751156AbeAWMAo (ORCPT + 6 others); Tue, 23 Jan 2018 07:00:44 -0500 Received: from mail-pg0-f66.google.com ([74.125.83.66]:44132 "EHLO mail-pg0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751056AbeAWMAn (ORCPT ); Tue, 23 Jan 2018 07:00:43 -0500 Received: by mail-pg0-f66.google.com with SMTP id m20so121479pgc.11 for ; Tue, 23 Jan 2018 04:00:43 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id; bh=JvNSlIMTyVFAQEYAKhkukqbzC538/hhFEd2DI7mvImM=; b=SWW2acvtEocO6q00oD4Caexi7fNbgExBI1AQqVKL7/UXp6ek1z+1tuuuxum6CnzfWc wD9W6ltjpioijhmOLpofJ/eiBOpLGVyAIKopzphFLw2b3kuWIpJx6BVOfQTlYUfHbTJh +V8m/GbCQ3doqW6myYL9HyL+mH0782CO9XoWI= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=JvNSlIMTyVFAQEYAKhkukqbzC538/hhFEd2DI7mvImM=; b=ZCYHE1OA0HAW4m0rrFhBCb/Ivi1hzo2CEgLjuclMJI0zD0mNoyzuT69AsnpYdoZpxz lUpO7Ft3ZP8jjZb9fxndfz+k17pw6rHI/S0VNMM/zUTi7H8yJQtBFtugda7O5H/iNPqb cjEVUY3bzoVjS2uJHfX9tUP0GsWDODpdaUeChfIyr4gD5l10JWx2r7Z3gpX1T5yDDW9g 03t9DEbUGDImDgV0phL8HK0tmsry4260rWhsrkDjuFtX7n1QKQfxRhhycmb7n5z5NGW1 RS79SMiiPnGIosQpMjK0/PXSNLk2PTyJlbgi9lMTqqOeBNtQkyh/75io2utmIXzESLj2 XHzg== X-Gm-Message-State: AKwxytc/1uVg97UM9ZRtyqOPAHlV0fA0hr2JVZ65j/ZNjjQ3pjj0KYW+ PMh9jpu4xIE7PpAuoCDfaoOhSZ9BUt8= X-Received: by 2002:a17:902:8b8a:: with SMTP id ay10-v6mr5311042plb.156.1516708842578; Tue, 23 Jan 2018 04:00:42 -0800 (PST) Received: from ubt.spreadtrum.com ([117.18.48.82]) by smtp.gmail.com with ESMTPSA id p75sm5853049pfi.148.2018.01.23.04.00.39 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 23 Jan 2018 04:00:41 -0800 (PST) From: Chunyan Zhang To: Mark Brown , Rob Herring Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Chunyan Zhang Subject: [PATCH V4 1/5] bindings: regulator: added support for suspend states Date: Tue, 23 Jan 2018 19:59:39 +0800 Message-Id: <1516708783-6288-1-git-send-email-zhang.chunyan@linaro.org> X-Mailer: git-send-email 2.7.4 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Some systems need to set regulators to specific states when they enter low power modes, especially around CPUs. There are many of these modes depending on the particular runtime state. Currently the regulator consumers are not granted permission to change suspend state of regulator devices, the constraints are configured at startup. In order to allow changes in a vlotage range, we need to add new properties for voltage range and a flag to give permission to change the suspend voltage and suspend on/off in suspend mode. Signed-off-by: Chunyan Zhang Reviewed-by: Rob Herring --- Documentation/devicetree/bindings/regulator/regulator.txt | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/Documentation/devicetree/bindings/regulator/regulator.txt b/Documentation/devicetree/bindings/regulator/regulator.txt index 378f6dc..e459226 100644 --- a/Documentation/devicetree/bindings/regulator/regulator.txt +++ b/Documentation/devicetree/bindings/regulator/regulator.txt @@ -42,8 +42,16 @@ Optional properties: - regulator-state-[mem/disk] node has following common properties: - regulator-on-in-suspend: regulator should be on in suspend state. - regulator-off-in-suspend: regulator should be off in suspend state. - - regulator-suspend-microvolt: regulator should be set to this voltage - in suspend. + - regulator-suspend-min-microvolt: minimum voltage may be set in + suspend state. + - regulator-suspend-max-microvolt: maximum voltage may be set in + suspend state. + - regulator-suspend-microvolt: the default voltage which regulator + would be set in suspend. This property is now deprecated, instead + setting voltage for suspend mode via the API which regulator + driver provides is recommended. + - regulator-changeable-in-suspend: whether the default voltage and + the regulator on/off in suspend can be changed in runtime. - regulator-mode: operating mode in the given suspend state. The set of possible operating modes depends on the capabilities of every hardware so the valid modes are documented on each regulator