diff options
| author | Codrin Ciubotariu <codrin.ciubotariu@microchip.com> | 2019-11-01 12:20:31 +0300 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2019-11-04 01:34:47 +0300 |
| commit | 0b3292852863215825f88905b9dbafc3101e1d7e (patch) | |
| tree | 89e8f234c15bf20230d88ee4b0271acf44c13366 /include/dt-bindings/pinctrl | |
| parent | aa5f2af535f711e78ac26789c34739037ec1c474 (diff) | |
| download | linux-0b3292852863215825f88905b9dbafc3101e1d7e.tar.xz | |
pinctrl: at91: Enable slewrate by default on SAM9X60
On SAM9X60, slewrate should be enabled on pins with a switching frequency
below 50Mhz. Since most of our pins do not exceed this value, we enable
slewrate by default. Pins with a switching value that exceeds 50Mhz will
have to explicitly disable slewrate.
This patch changes the ABI. However, the slewrate macros are only used
by SAM9X60 and, at this moment, there are no device-tree files available
for this platform.
Suggested-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Link: https://lore.kernel.org/r/20191101092031.24896-1-codrin.ciubotariu@microchip.com
Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'include/dt-bindings/pinctrl')
| -rw-r--r-- | include/dt-bindings/pinctrl/at91.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/dt-bindings/pinctrl/at91.h b/include/dt-bindings/pinctrl/at91.h index 3831f91fb3ba..e8e117306b1b 100644 --- a/include/dt-bindings/pinctrl/at91.h +++ b/include/dt-bindings/pinctrl/at91.h @@ -27,8 +27,8 @@ #define AT91_PINCTRL_DRIVE_STRENGTH_MED (0x2 << 5) #define AT91_PINCTRL_DRIVE_STRENGTH_HI (0x3 << 5) -#define AT91_PINCTRL_SLEWRATE_DIS (0x0 << 9) -#define AT91_PINCTRL_SLEWRATE_ENA (0x1 << 9) +#define AT91_PINCTRL_SLEWRATE_ENA (0x0 << 9) +#define AT91_PINCTRL_SLEWRATE_DIS (0x1 << 9) #define AT91_PIOA 0 #define AT91_PIOB 1 |