devices: constify device pointers initialized at compile time
Many device pointers are initialized at compile and never changed. This
means that the device pointer can be constified (immutable).
Automated using:
```
perl -i -pe 's/const struct device \*(?!const)(.*)= DEVICE/const struct
device *const $1= DEVICE/g' **/*.c
```
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
diff --git a/drivers/serial/uart_stm32.c b/drivers/serial/uart_stm32.c
index 9868e98..6a3e5b3 100644
--- a/drivers/serial/uart_stm32.c
+++ b/drivers/serial/uart_stm32.c
@@ -637,7 +637,7 @@
static inline void __uart_stm32_get_clock(const struct device *dev)
{
struct uart_stm32_data *data = dev->data;
- const struct device *clk = DEVICE_DT_GET(STM32_CLOCK_CONTROL_NODE);
+ const struct device *const clk = DEVICE_DT_GET(STM32_CLOCK_CONTROL_NODE);
data->clock = clk;
}
