From mboxrd@z Thu Jan 1 00:00:00 1970 From: Quentin Schulz 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> References: <20170511134221.5569-1-quentin.schulz@free-electrons.com> Reply-To: quentin.schulz-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Return-path: Sender: linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org In-Reply-To: <20170511134221.5569-1-quentin.schulz-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org> List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , To: sre-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, mark.rutland-5wv7dgnIgG8@public.gmane.org, wens-jdAy2FN1RRM@public.gmane.org Cc: Quentin Schulz , linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, liam-RYWXG+zxWwBdeoIcmNTgJF6hYfS7NtTn@public.gmane.org, thomas.petazzoni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org, linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org List-Id: devicetree@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