Merge tag 'spi-bpw-is-supported' of... (e727d4cb) · Commits · 戴 / test

include/linux/spi/spi.h

+20 −0

Original line number	Diff line number	Diff line
		@@ -1005,6 +1005,26 @@ spi_max_transfer_size(struct spi_device *spi)
		return min(tr_max, msg_max);
		}

		/**
		* spi_is_bpw_supported - Check if bits per word is supported
		* @spi: SPI device
		* @bpw: Bits per word
		*
		* This function checks to see if the SPI controller supports @bpw.
		*
		* Returns:
		* True if @bpw is supported, false otherwise.
		*/
		static inline bool spi_is_bpw_supported(struct spi_device *spi, u32 bpw)
		{
		u32 bpw_mask = spi->master->bits_per_word_mask;

		if (bpw == 8 \|\| (bpw <= 32 && bpw_mask & SPI_BPW_MASK(bpw)))
		return true;

		return false;
		}

		/---------------------------------------------------------------------------/

		/* SPI transfer replacement methods which make use of spi_res */