linux-kernel - [PATCH 5.15 122/124] spi: atmel-quadspi: Fix the buswidth adjustment between spi-mem and controller

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Date:   Tue, 26 Apr 2022 10:22:03 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Tudor Ambarus <tudor.ambarus@...rochip.com>,
        Mark Brown <broonie@...nel.org>
Subject: [PATCH 5.15 122/124] spi: atmel-quadspi: Fix the buswidth adjustment between spi-mem and controller

From: Tudor Ambarus <tudor.ambarus@...rochip.com>

commit 8c235cc25087495c4288d94f547e9d3061004991 upstream.

Use the spi_mem_default_supports_op() core helper in order to take into
account the buswidth specified by the user in device tree.

Cc: <stable@...r.kernel.org>
Fixes: 0e6aae08e9ae ("spi: Add QuadSPI driver for Atmel SAMA5D2")
Signed-off-by: Tudor Ambarus <tudor.ambarus@...rochip.com>
Link: https://lore.kernel.org/r/20220406133604.455356-1-tudor.ambarus@microchip.com
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/spi/atmel-quadspi.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/spi/atmel-quadspi.c
+++ b/drivers/spi/atmel-quadspi.c
@@ -277,6 +277,9 @@ static int atmel_qspi_find_mode(const st
 static bool atmel_qspi_supports_op(struct spi_mem *mem,
 				   const struct spi_mem_op *op)
 {
+	if (!spi_mem_default_supports_op(mem, op))
+		return false;
+
 	if (atmel_qspi_find_mode(op) < 0)
 		return false;