Thread (65 messages) 65 messages, 10 authors, 2015-03-18

[PATCH v2 07/18] drivers: reset: Add STM32 reset driver

From: arnd@arndb.de (Arnd Bergmann)
Date: 2015-03-10 20:22:36
Also in: linux-api, linux-arch, linux-devicetree, linux-gpio, linux-serial, lkml

On Tuesday 10 March 2015 16:44:24 Maxime Coquelin wrote:
2015-03-10 16:02 GMT+01:00 Arnd Bergmann [off-list ref]:
quoted
On Friday 20 February 2015 19:01:06 Maxime Coquelin wrote:
quoted
+/* AHB1 */
+#define GPIOA_RESET    0
+#define GPIOB_RESET    1
+#define GPIOC_RESET    2
+#define GPIOD_RESET    3
+#define GPIOE_RESET    4
+#define GPIOF_RESET    5
+#define GPIOG_RESET    6
+#define GPIOH_RESET    7
+#define GPIOI_RESET    8
+#define GPIOJ_RESET    9
+#define GPIOK_RESET    10
As these are just the hardware numbers, it's better to not make them
part of the binding at all. Instead, just document in the binding that
one is supposed to pass the hardware number as the argument.
The reset controller is part of the RCC (Reset & Clock Controller) IP.
In this version, I only provided the reset registers to the reset
controller driver, but as per Andreas F?rber remark, I should avec a
single DT node for both the resets and clocks.

In the next version I am preparing, the defines doesn't look as
trivial as in this version, GPIOA_RESET being 128 for instance.

Is it fine for you if I keep the defines part of the binding?
It's always better to avoid these files entirely, as they are
a frequent source of merge dependencies, and they make it less
obvious what's going on than having binary values in the dtb
that make sense.

	Arnd
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