[Core] PWM Backlight for RP2040 (#17706)

4 files changed, 25 insertions, 1 deletions

diff --git a/keyboards/handwired/onekey/rp2040/config.h b/keyboards/handwired/onekey/rp2040/config.h
index bcf4047a4f..82c5592dc9 100644
--- a/keyboards/handwired/onekey/rp2040/config.h
+++ b/keyboards/handwired/onekey/rp2040/config.h
@@ -13,3 +13,6 @@
 #define RP2040_BOOTLOADER_DOUBLE_TAP_RESET
 #define RP2040_BOOTLOADER_DOUBLE_TAP_RESET_LED GP25
 #define RP2040_BOOTLOADER_DOUBLE_TAP_RESET_TIMEOUT 500U
+
+#define BACKLIGHT_PWM_DRIVER PWMD4
+#define BACKLIGHT_PWM_CHANNEL RP2040_PWM_CHANNEL_B
diff --git a/keyboards/handwired/onekey/rp2040/halconf.h b/keyboards/handwired/onekey/rp2040/halconf.h
new file mode 100644
index 0000000000..5890122e5e
--- /dev/null
+++ b/keyboards/handwired/onekey/rp2040/halconf.h
@@ -0,0 +1,9 @@
+// Copyright 2022 Stefan Kerkmann
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#define HAL_USE_I2C TRUE
+#define HAL_USE_PWM TRUE
+
+#include_next <halconf.h>
diff --git a/keyboards/handwired/onekey/rp2040/info.json b/keyboards/handwired/onekey/rp2040/info.json
index b34a1cc206..32bde911bb 100644
--- a/keyboards/handwired/onekey/rp2040/info.json
+++ b/keyboards/handwired/onekey/rp2040/info.json
@@ -6,7 +6,10 @@
         "cols": ["GP4"],
         "rows": ["GP5"]
     },
+    "backlight": {
+        "pin": "GP25"
+    },
     "rgblight": {
-        "pin": "A1"
+        "pin": "GP25"
     }
 }
diff --git a/keyboards/handwired/onekey/rp2040/mcuconf.h b/keyboards/handwired/onekey/rp2040/mcuconf.h
new file mode 100644
index 0000000000..86f821640f
--- /dev/null
+++ b/keyboards/handwired/onekey/rp2040/mcuconf.h
@@ -0,0 +1,9 @@
+// Copyright 2022 Stefan Kerkmann
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include_next "mcuconf.h"
+
+#undef RP_PWM_USE_PWM4
+#define RP_PWM_USE_PWM4 TRUE