From a66463c8e19a4ee1ea00e86c5a11490934f1c7b8 Mon Sep 17 00:00:00 2001
From: Dominic Clifton <dominic.clifton@cleanflight.com>
Date: Thu, 1 Aug 2019 15:34:09 +0200
Subject: [PATCH] STM32H750 - Fix I2C4 RCC.  It's on APB4, not APB1.

* See `RCC_APB4ENR_I2C4EN` in CMSIS stm32h7*.h
---
 src/main/drivers/bus_i2c_hal.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/drivers/bus_i2c_hal.c b/src/main/drivers/bus_i2c_hal.c
index 5be0258194..e04985133f 100644
--- a/src/main/drivers/bus_i2c_hal.c
+++ b/src/main/drivers/bus_i2c_hal.c
@@ -141,7 +141,7 @@ const i2cHardware_t i2cHardware[I2CDEV_COUNT] = {
         .reg = I2C4,
         .sclPins = { I2CPINDEF(PD12, GPIO_AF4_I2C4), I2CPINDEF(PF14, GPIO_AF4_I2C4), I2CPINDEF(PB6, GPIO_AF6_I2C4), I2CPINDEF(PB8, GPIO_AF6_I2C4) },
         .sdaPins = { I2CPINDEF(PD13, GPIO_AF4_I2C4), I2CPINDEF(PF15, GPIO_AF4_I2C4), I2CPINDEF(PB7, GPIO_AF6_I2C4), I2CPINDEF(PB9, GPIO_AF6_I2C4) },
-        .rcc = RCC_APB1L(I2C4),
+        .rcc = RCC_APB4(I2C4),
         .ev_irq = I2C4_EV_IRQn,
         .er_irq = I2C4_ER_IRQn,
     },