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SubjectApplied "spi: mediatek: use correct mata->xfer_len when in fifo transfer" to the spi tree
The patch

spi: mediatek: use correct mata->xfer_len when in fifo transfer

has been applied to the spi tree at

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tree (usually sometime in the next 24 hours) and sent to Linus during
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From a4d8f64f7267a88d4688f5c216926f5f6cafbae6 Mon Sep 17 00:00:00 2001
From: Leilk Liu <>
Date: Wed, 31 Oct 2018 16:49:16 +0800
Subject: [PATCH] spi: mediatek: use correct mata->xfer_len when in fifo

when xfer_len is greater than 64 bytes and use fifo mode
to transfer, the actual length from the third time is mata->xfer_len
but not len in mtk_spi_interrupt().

Signed-off-by: Leilk Liu <>
Signed-off-by: Mark Brown <>
drivers/spi/spi-mt65xx.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-mt65xx.c b/drivers/spi/spi-mt65xx.c
index 3dc31627c655..0c2867deb36f 100644
--- a/drivers/spi/spi-mt65xx.c
+++ b/drivers/spi/spi-mt65xx.c
@@ -522,11 +522,11 @@ static irqreturn_t mtk_spi_interrupt(int irq, void *dev_id)
mdata->xfer_len = min(MTK_SPI_MAX_FIFO_SIZE, len);

- cnt = len / 4;
+ cnt = mdata->xfer_len / 4;
iowrite32_rep(mdata->base + SPI_TX_DATA_REG,
trans->tx_buf + mdata->num_xfered, cnt);

- remainder = len % 4;
+ remainder = mdata->xfer_len % 4;
if (remainder > 0) {
reg_val = 0;
 \ /
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