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include/dt-bindings: Add include binding for st,stm32f1-pinctrl

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Add header to allow use of STM32F1_PINMUX macros described
for st,stm32f1-pinctrl binding.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
This commit is contained in:
Erwan Gouriou 2020-08-12 16:54:41 +02:00 • committed by Kumar Gala
commit 029d749446
1 changed files with 29 additions and 0 deletions
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29
include/dt-bindings/pinctrl/stm32f1-pinctrl.h
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@ -9,6 +9,35 @@
#include <dt-bindings/pinctrl/stm32-pinctrl-common.h>
/* Adapted from Linux: include/dt-bindings/pinctrl/stm32-pinfunc.h */
/**
* @brief Macro to generate pinmux int using port, pin number and mode arguments
* This is adapted from Linux equivalent st,stm32f429-pinctrl binding
*/
#define PIN_NO(port, line) (((port) - 'A') * 0x10 + (line))
#define STM32F1_PINMUX(port, line, mode, remap) \
(((PIN_NO(port, line)) << 8) | (mode << 6) | (remap))
/**
* @brief Pin modes
*/
#define ALTERNATE 0x0 /* Alternate function output */
#define GPIO_IN 0x1 /* Input */
#define ANALOG 0x2 /* Analog */
/**
* @brief Pin remapping configurations
*/
#define NO_REMAP 0x0 /* No remapping */
#define REMAP_1 0x1 /* Partial remapping 1 */
#define REMAP_2 0x2 /* Partial remapping 2 */
#define REMAP_3 0x3 /* Partial remapping 3 */
#define REMAP_FULL 0x4 /* Full remapping */
/**
* @brief PIN configuration bitfield
*