linux-kernel - [PATCH] spi: sun4i: update max transfer size reported

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Date:   Mon, 27 Jul 2020 17:23:28 +1000
From:   Jonathan Liu <net147@...il.com>
To:     Mark Brown <broonie@...nel.org>,
        Maxime Ripard <mripard@...nel.org>,
        Chen-Yu Tsai <wens@...e.org>
Cc:     Olliver Schinagl <oliver@...inagl.nl>,
        Alexandru Gagniuc <mr.nuke.me@...il.com>,
        linux-spi@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-sunxi@...glegroups.com,
        Jonathan Liu <net147@...il.com>
Subject: [PATCH] spi: sun4i: update max transfer size reported

The spi-sun4i driver already has the ability to do large transfers.
However, the max transfer size reported is still fifo depth - 1.

Update the max transfer size reported to the max value possible.

Fixes: 196737912da5 ("spi: sun4i: Allow transfers larger than FIFO size")
Signed-off-by: Jonathan Liu <net147@...il.com>
---
 drivers/spi/spi-sun4i.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-sun4i.c b/drivers/spi/spi-sun4i.c
index cbfac6596fad..1fdfc6e6691d 100644
--- a/drivers/spi/spi-sun4i.c
+++ b/drivers/spi/spi-sun4i.c
@@ -198,7 +198,7 @@ static void sun4i_spi_set_cs(struct spi_device *spi, bool enable)
 
 static size_t sun4i_spi_max_transfer_size(struct spi_device *spi)
 {
-	return SUN4I_FIFO_DEPTH - 1;
+	return SUN4I_MAX_XFER_SIZE - 1;
 }
 
 static int sun4i_spi_transfer_one(struct spi_master *master,
-- 
2.27.0