boards: Seeeduino XIAO BLE charge current select.

[petejohanson]

Add board Kconfig option to allow selecting a fixed charge current, either 50mA or 100mA, at startup.

Signed-off-by: Peter Johanson peter@peterjohanson.com

[caksoylar]

After a haphazard attempt to update this for Zephyr 3.2 (see below), the config seems to be working well. I missed when the charging light turned off so I couldn't calculate for sure, but I definitely got >65 mAh whereas I used to get <50 mAh without this patch.

diff --git a/boards/arm/seeeduino_xiao_ble/board.c b/boards/arm/seeeduino_xiao_ble/board.c
index 79143a9c5f..f4312df2a8 100644
--- a/boards/arm/seeeduino_xiao_ble/board.c
+++ b/boards/arm/seeeduino_xiao_ble/board.c
@@ -4,16 +4,15 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-#include <init.h>
+#include <zephyr/init.h>
 #include <hal/nrf_gpio.h>
 #include <nrfx.h>
-#include <device.h>
-#include <drivers/gpio.h>
+#include <zephyr/device.h>
+#include <zephyr/drivers/gpio.h>
 
-#include <logging/log.h>
+#include <zephyr/logging/log.h>
 LOG_MODULE_REGISTER(seeeduino_xiao_ble_board_init);
 
-#define XIAO_BLE_CHARGE_CTRL_PORT DT_LABEL(DT_NODELABEL(gpio0))
 #define XIAO_BLE_CHARGE_CTRL_PIN 13
 
 static int setup(const struct device *dev)
@@ -23,9 +22,9 @@ static int setup(const struct device *dev)
     const struct device *gpio;
     int err;
 
-	gpio = device_get_binding(XIAO_BLE_CHARGE_CTRL_PORT);
+    gpio = DEVICE_DT_GET(DT_NODELABEL(gpio0));
     if (!gpio) {
-                LOG_ERR("Could not bind device \"%s\"", XIAO_BLE_CHARGE_CTRL_PORT);
+        LOG_ERR("Could not bind gpio0 device");
         return -ENODEV;
     }
 

[caksoylar]

I suppose this could be implemented with GPIO hogging in Zephyr 3.5. I'll drop a note here if I figure it out!

[ldab]

I suppose this could be implemented with GPIO hogging in Zephyr 3.5. I'll drop a note here if I figure it out!

HOG is introduced in 3.3 btw

[proostas]

I found a way to make it work with GPIO hogging.

&gpio0 {
    fastbatcharge: fast-battery-charge {
        gpio-hog;
        gpios = <13 GPIO_ACTIVE_HIGH>;
        output-low;
        line-name = "Fast Battery Charge";
    };
};