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27 lines
905 B
Diff
27 lines
905 B
Diff
From 95193796256cfce16e5d881318e15b6b04062c15 Mon Sep 17 00:00:00 2001
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From: Michal Suchanek <hramrach@gmail.com>
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Date: Thu, 5 May 2016 17:31:56 -0700
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Subject: [PATCH 10/10] mtd: m25p80: read in spi_max_transfer_size chunks
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Take into account transfer size limitation of SPI master.
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Signed-off-by: Michal Suchanek <hramrach@gmail.com>
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Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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Acked-by: Michal Suchanek <hramrach@gmail.com>
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Tested-by: Michal Suchanek <hramrach@gmail.com>
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---
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drivers/mtd/devices/m25p80.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/drivers/mtd/devices/m25p80.c
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+++ b/drivers/mtd/devices/m25p80.c
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@@ -172,7 +172,7 @@ static ssize_t m25p80_read(struct spi_no
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t[1].rx_buf = buf;
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t[1].rx_nbits = m25p80_rx_nbits(nor);
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- t[1].len = len;
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+ t[1].len = min(len, spi_max_transfer_size(spi));
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spi_message_add_tail(&t[1], &m);
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ret = spi_sync(spi, &m);
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