[v2,2/3] spi: fsl_qspi: Ensure width is respected in spi-mem operations

Message ID 20210125035521.23466-3-matt@traverse.com.au
State Accepted
Commit 6b4eb604eac8d0dd4f119dcf5523545fc779fafa
Headers show
Series
  • Untitled series #97014
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Commit Message

Mathew McBride Jan. 25, 2021, 3:55 a.m.
Adapted from kernel commit b0177aca7aea
From: Michael Walle <michael@walle.cc>


Make use of a core helper to ensure the desired width is respected
when calling spi-mem operators.

Otherwise only the SPI controller will be matched with the flash chip,
which might lead to wrong widths. Also consider the width specified by
the user in the device tree.

Fixes: 91afd36f38 ("spi: Add a driver for the Freescale/NXP QuadSPI controller")
Signed-off-by: Michael Walle <michael@walle.cc>

Link: https://lore.kernel.org/r/20200114154613.8195-1-michael@walle.cc
Signed-off-by: Mark Brown <broonie@kernel.org>

Signed-off-by: Mathew McBride <matt@traverse.com.au> [adapt for U-Boot]

---
 drivers/spi/fsl_qspi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

-- 
2.30.0

Patch

diff --git a/drivers/spi/fsl_qspi.c b/drivers/spi/fsl_qspi.c
index 8bc7038a82..2a1f3a0c44 100644
--- a/drivers/spi/fsl_qspi.c
+++ b/drivers/spi/fsl_qspi.c
@@ -409,7 +409,7 @@  static bool fsl_qspi_supports_op(struct spi_slave *slave,
 	    op->data.nbytes > q->devtype_data->txfifo)
 		return false;
 
-	return true;
+	return spi_mem_default_supports_op(slave, op);
 }
 
 static void fsl_qspi_prepare_lut(struct fsl_qspi *q,