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dts: arm: Add clocks u(s)art on stm32 family

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Add "clocks" property on u(s)arts nodes on stm32 socs
Add a dt clocks binding file and rework clock_control
header file include new device tree binding file.
include/dt-bindings folder is introduced as dt-bindings
placeholder

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
This commit is contained in:
Erwan Gouriou 2017-07-25 16:04:15 +02:00 • committed by Kumar Gala
commit f8240018d0
15 changed files with 70 additions and 10 deletions
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4
dts/arm/st/stm32f334.dtsi
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@ -6,6 +6,7 @@
#include <arm/armv7-m.dtsi>
#include <st/mem.h>
#include <dt-bindings/clock/stm32_clock.h>
/ {
cpus {
@ -41,6 +42,7 @@
usart1: serial@40013800 {
compatible = "st,stm32-usart", "st,stm32-uart";
reg = <0x40013800 0x400>;
clocks = <&rcc STM32_CLOCK_BUS_APB2 0x00004000>;
interrupts = <37 0>;
status = "disabled";
label = "UART_1";
@ -49,6 +51,7 @@
usart2: serial@40004400 {
compatible = "st,stm32-usart", "st,stm32-uart";
reg = <0x40004400 0x400>;
clocks = <&rcc STM32_CLOCK_BUS_APB1 0x00020000>;
interrupts = <38 0>;
status = "disabled";
label = "UART_2";
@ -57,6 +60,7 @@
usart3: serial@40004800 {
compatible = "st,stm32-usart", "st,stm32-uart";
reg = <0x40004800 0x400>;
clocks = <&rcc STM32_CLOCK_BUS_APB1 0x00040000>;
interrupts = <39 0>;
status = "disabled";
label = "UART_3";