mirror of
https://git.openwrt.org/openwrt/openwrt.git
synced 2024-10-19 05:58:53 +02:00
d41d9befb9
Add u-boot bootloader based on 2023.01 to support D1-based boards, currently: - Dongshan Nezha STU - LicheePi RV Dock - MangoPi MQ-Pro - Nezha D1 Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>
57 lines
1.5 KiB
Diff
57 lines
1.5 KiB
Diff
From 4be9f9082b0a2ac2626ae20b7e07006139827442 Mon Sep 17 00:00:00 2001
|
|
From: Samuel Holland <samuel@sholland.org>
|
|
Date: Sat, 28 Aug 2021 00:34:54 -0500
|
|
Subject: [PATCH 52/90] gpio: axp: Add pull-down support for AXP22x/AXP8xx
|
|
variant
|
|
|
|
The AXP221 and newer PMICs support a pull-down function on their GPIOs.
|
|
Add support for it.
|
|
|
|
Signed-off-by: Samuel Holland <samuel@sholland.org>
|
|
---
|
|
drivers/gpio/axp_gpio.c | 15 ++++++++++++++-
|
|
1 file changed, 14 insertions(+), 1 deletion(-)
|
|
|
|
--- a/drivers/gpio/axp_gpio.c
|
|
+++ b/drivers/gpio/axp_gpio.c
|
|
@@ -24,6 +24,7 @@ struct axp_gpio_desc {
|
|
u8 npins;
|
|
u8 status_reg;
|
|
u8 status_offset;
|
|
+ u8 pull_reg;
|
|
u8 input_mux;
|
|
};
|
|
|
|
@@ -60,11 +61,22 @@ static int axp_gpio_get_function(struct
|
|
static int axp_gpio_set_flags(struct udevice *dev, unsigned pin, ulong flags)
|
|
{
|
|
const struct axp_gpio_desc *desc = dev_get_priv(dev);
|
|
+ bool pull_down = flags & GPIOD_PULL_DOWN;
|
|
+ int ret;
|
|
u8 mux;
|
|
|
|
- if (flags & (GPIOD_MASK_DSTYPE | GPIOD_MASK_PULL))
|
|
+ if (flags & (GPIOD_MASK_DSTYPE | GPIOD_PULL_UP))
|
|
+ return -EINVAL;
|
|
+ if (pull_down && !desc->pull_reg)
|
|
return -EINVAL;
|
|
|
|
+ if (desc->pull_reg) {
|
|
+ ret = pmic_clrsetbits(dev->parent, desc->pull_reg,
|
|
+ BIT(pin), pull_down ? BIT(pin) : 0);
|
|
+ if (ret)
|
|
+ return ret;
|
|
+ }
|
|
+
|
|
if (flags & GPIOD_IS_IN)
|
|
mux = desc->input_mux;
|
|
else if (flags & GPIOD_IS_OUT_ACTIVE)
|
|
@@ -129,6 +141,7 @@ static const struct axp_gpio_desc axp221
|
|
.pins = axp221_gpio_pins,
|
|
.npins = ARRAY_SIZE(axp221_gpio_pins),
|
|
.status_reg = 0x94,
|
|
+ .pull_reg = 0x97,
|
|
.input_mux = 2,
|
|
};
|
|
|