From 0535cf64e4b1ead224fbbe1c25c81221a298c5e4 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Fri, 31 May 2024 22:42:33 +0300 Subject: [PATCH] spi: Introduce internal spi_xfer_is_dma_mapped() helper MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit There are few drivers that use the same pattern to check if the transfer is DMA mapped or not. Provide a helper. Signed-off-by: Andy Shevchenko Tested-by: Neil Armstrong # on SM8650-QRD Link: https://lore.kernel.org/r/20240531194723.1761567-2-andriy.shevchenko@linux.intel.com Reviewed-by: Bryan O'Donoghue Reviewed-by: Serge Semin Tested-by: Nícolas F. R. A. Prado Signed-off-by: Mark Brown --- drivers/spi/internals.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/spi/internals.h b/drivers/spi/internals.h index 4a28a8395552..47a87c2a6979 100644 --- a/drivers/spi/internals.h +++ b/drivers/spi/internals.h @@ -40,4 +40,12 @@ static inline void spi_unmap_buf(struct spi_controller *ctlr, } #endif /* CONFIG_HAS_DMA */ +static inline bool spi_xfer_is_dma_mapped(struct spi_controller *ctlr, + struct spi_device *spi, + struct spi_transfer *xfer) +{ + return ctlr->can_dma && ctlr->can_dma(ctlr, spi, xfer) && + ctlr->cur_msg_mapped; +} + #endif /* __LINUX_SPI_INTERNALS_H */