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drivers/pinmux: stm32: Use pull-up for _SPI_NSS pins

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To work efficiently, SPI_NSS pins require pull-up configuration.
Fix this for whole STM32 series.

Fixes #17998

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
This commit is contained in:
Erwan Gouriou 2019-09-03 10:41:41 +02:00 • committed by Maureen Helm
commit 90df6a3291
10 changed files with 34 additions and 31 deletions
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5
include/dt-bindings/pinctrl/stm32-pinctrlf1.h
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@ -103,7 +103,10 @@
/* Hardware master NSS output disabled */
#define STM32_PIN_SPI_MASTER_NSS (STM32_MODE_INPUT | STM32_CNF_IN_FLOAT)
/* Hardware master NSS output enabled */
#define STM32_PIN_SPI_MASTER_NSS_OE (STM32_MODE_OUTPUT | STM32_CNF_ALT_FUNC | STM32_CNF_PUSH_PULL)
#define STM32_PIN_SPI_MASTER_NSS_OE (STM32_MODE_OUTPUT | \
STM32_CNF_ALT_FUNC | \
STM32_CNF_PUSH_PULL | \
STM32_PUPD_PULL_UP)
#define STM32_PIN_SPI_SLAVE_NSS (STM32_MODE_INPUT | STM32_CNF_IN_FLOAT)
#define STM32_PIN_USB (STM32_MODE_INPUT | STM32_CNF_IN_PUPD)