From: Icenowy Zheng <icenowy@aosc.io>
To: Sebastian Reichel <sre@kernel.org>, Chen-Yu Tsai <wens@csie.org>
Cc: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-sunxi@googlegroups.com, Icenowy Zheng <icenowy@aosc.io>
Subject: [PATCH 1/2] power: supply: axp20x_usb_power: enable USB BC detection on AXP813
Date: Wed, 2 Oct 2019 19:25:44 +0800 [thread overview]
Message-ID: <20191002112545.58481-2-icenowy@aosc.io> (raw)
In-Reply-To: <20191002112545.58481-1-icenowy@aosc.io>
The AXP813 PMIC has support for detection of USB Battery Charging
specification, and it will limit the current to 500mA by default when
the detection is not enabled or the detection result is SDP.
Enable the BC detection to allow correctly selection of the current.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
---
drivers/power/supply/axp20x_usb_power.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/power/supply/axp20x_usb_power.c b/drivers/power/supply/axp20x_usb_power.c
index dc4c316eff81..5f0a5722b19e 100644
--- a/drivers/power/supply/axp20x_usb_power.c
+++ b/drivers/power/supply/axp20x_usb_power.c
@@ -48,6 +48,8 @@
#define AXP20X_VBUS_MON_VBUS_VALID BIT(3)
+#define AXP813_BC_EN BIT(0)
+
/*
* Note do not raise the debounce time, we must report Vusb high within
* 100ms otherwise we get Vbus errors in musb.
@@ -495,6 +497,12 @@ static int axp20x_usb_power_probe(struct platform_device *pdev)
return -EINVAL;
}
+ if (power->axp20x_id == AXP813_ID) {
+ /* Enable USB Battery Charging specification detection */
+ regmap_update_bits(axp20x->regmap, AXP288_BC_GLOBAL,
+ AXP813_BC_EN, AXP813_BC_EN);
+ }
+
psy_cfg.of_node = pdev->dev.of_node;
psy_cfg.drv_data = power;
--
2.21.0
next prev parent reply other threads:[~2019-10-02 11:36 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-02 11:25 [PATCH 0/2] Enable USB BC detection to raise AXP813 Vbus current Icenowy Zheng
2019-10-02 11:25 ` Icenowy Zheng [this message]
2019-10-14 4:22 ` [PATCH 1/2] power: supply: axp20x_usb_power: enable USB BC detection on AXP813 Sebastian Reichel
2019-10-02 11:25 ` [PATCH 2/2] power: supply: axp20x_usb_power: add applied max Vbus support for AXP813 Icenowy Zheng
2019-10-07 16:07 ` [linux-sunxi] " Chen-Yu Tsai
2019-10-08 3:09 ` Icenowy Zheng
2019-10-08 3:14 ` Chen-Yu Tsai
2019-10-14 4:24 ` Sebastian Reichel
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