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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Mark Brown <broonie@kernel.org>,
	Yang Yingliang <yangyingliang@huawei.com>,
	Christophe JAILLET <christophe.jaillet@wanadoo.fr>,
	Thangaraj Samynathan <thangaraj.s@microchip.com>,
	linux-spi@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-arm-msm@vger.kernel.org
Cc: Serge Semin <fancer.lancer@gmail.com>,
	Daniel Mack <daniel@zonque.org>,
	Haojian Zhuang <haojian.zhuang@gmail.com>,
	Robert Jarzmik <robert.jarzmik@free.fr>,
	=?UTF-8?q?N=C3=ADcolas=20F=20=2E=20R=20=2E=20A=20=2E=20Prado?= <nfraprado@collabora.com>,
	Neil Armstrong <neil.armstrong@linaro.org>
Subject: [PATCH v1 1/8] spi: Introduce internal spi_xfer_is_dma_mapped() helper
Date: Fri, 31 May 2024 22:42:33 +0300
Message-ID: <20240531194723.1761567-2-andriy.shevchenko@linux.intel.com>
In-Reply-To: <20240531194723.1761567-1-andriy.shevchenko@linux.intel.com>
References: <20240531194723.1761567-1-andriy.shevchenko@linux.intel.com>
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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 <andriy.shevchenko@linux.intel.com>
---
 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 */
-- 
2.43.0.rc1.1336.g36b5255a03ac