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stm32h7: spi: Use TXC instead of EOT

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Check the TXC flag instead of EOT for the case of endless
transactions (TSIZE = 0), which in this case is always as
the stm32 SPI driver doesn't set TSIZE.

Signed-off-by: Daniel Gaston Ochoa <dgastonochoa@gmail.com>
This commit is contained in:
Daniel Gaston Ochoa 2023-08-17 17:12:21 +01:00 committed by Carles Cufí
parent d4e1b186ee
commit d434693c15
1 changed files with 5 additions and 1 deletions
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6
drivers/spi/spi_ll_stm32.h
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@ -177,7 +177,11 @@ static inline void ll_func_disable_int_errors(SPI_TypeDef *spi)
static inline uint32_t ll_func_spi_is_busy(SPI_TypeDef *spi)
{
#if DT_HAS_COMPAT_STATUS_OKAY(st_stm32h7_spi)
return LL_SPI_IsActiveFlag_EOT(spi);
if (LL_SPI_GetTransferSize(spi) == 0) {
return LL_SPI_IsActiveFlag_TXC(spi) == 0;
} else {
return LL_SPI_IsActiveFlag_EOT(spi) == 0;
}
#else
return LL_SPI_IsActiveFlag_BSY(spi);
#endif /* st_stm32h7_spi */