From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932473AbdEKNmq (ORCPT ); Thu, 11 May 2017 09:42:46 -0400 Received: from mail.free-electrons.com ([62.4.15.54]:34111 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755566AbdEKNmm (ORCPT ); Thu, 11 May 2017 09:42:42 -0400 From: Quentin Schulz To: sre@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com, wens@csie.org Cc: Quentin Schulz , linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, liam@networkimprov.net, thomas.petazzoni@free-electrons.com, linux-sunxi@googlegroups.com Subject: [PATCH 1/4] power: supply: axp20x_battery: add support for DT battery Date: Thu, 11 May 2017 15:42:17 +0200 Message-Id: <20170511134221.5569-2-quentin.schulz@free-electrons.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170511134221.5569-1-quentin.schulz@free-electrons.com> References: <20170511134221.5569-1-quentin.schulz@free-electrons.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This adds support in X-Powers AXP20X and AXP22X battery driver for a fixed battery in DT. It will take the minimum supported voltage by the battery as defined in the battery DT node and set the V_OFF register to this value, telling the system to shut down if the supplied power is below this value. Signed-off-by: Quentin Schulz --- drivers/power/supply/axp20x_battery.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/power/supply/axp20x_battery.c b/drivers/power/supply/axp20x_battery.c index 5d29b2eab8fc..66f530541735 100644 --- a/drivers/power/supply/axp20x_battery.c +++ b/drivers/power/supply/axp20x_battery.c @@ -433,6 +433,7 @@ static int axp20x_power_probe(struct platform_device *pdev) { struct axp20x_batt_ps *axp20x_batt; struct power_supply_config psy_cfg = {}; + struct power_supply_battery_info info; if (!of_device_is_available(pdev->dev.of_node)) return -ENODEV; @@ -484,6 +485,15 @@ static int axp20x_power_probe(struct platform_device *pdev) return PTR_ERR(axp20x_batt->batt); } + if (!power_supply_get_battery_info(axp20x_batt->batt, &info)) { + int vmin = info.voltage_min_design_uv; + + if (vmin > 0 && axp20x_set_voltage_min_design(axp20x_batt, + vmin)) + dev_err(&pdev->dev, + "couldn't set voltage_min_design\n"); + } + return 0; } -- 2.11.0