[PATCH 1/3] spi: Add addr_width field to struct spi_message

[Zhiqiang Hou <B48286@xxxxxxxxxxxxx>]

From: Hou Zhiqiang <B48286@xxxxxxxxxxxxx>

Make SPI controller can get address width of the SPI device.

Signed-off-by: Hou Zhiqiang <B48286@xxxxxxxxxxxxx>

Based on git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git.
Tested on T1040RDB and T2080RDB.
---
 include/linux/spi/spi.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index d673072..c9cef2c 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -682,6 +682,9 @@ struct spi_message {
 	unsigned		actual_length;
 	int			status;
 
+	/* deliver the address width of spi device to spi controller */
+	u8			addr_width;
+
 	/* for optional use by whatever driver currently owns the
 	 * spi_message ...  between calls to spi_async and then later
 	 * complete(), that's the spi_master controller driver.
-- 
2.1.0.27.g96db324

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