Patch "spi: Fix OCTAL mode support" has been added to the 6.6-stable tree

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



This is a note to let you know that I've just added the patch titled

    spi: Fix OCTAL mode support

to the 6.6-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     spi-fix-octal-mode-support.patch
and it can be found in the queue-6.6 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 503f604290325c7d24c802b9b6bab3b5eebf555a
Author: Patrice Chotard <patrice.chotard@xxxxxxxxxxx>
Date:   Tue Jun 18 15:29:51 2024 +0200

    spi: Fix OCTAL mode support
    
    [ Upstream commit d6a711a898672dd873aab3844f754a3ca40723a5 ]
    
    Add OCTAL mode support.
    Issue detected using "--octal" spidev_test's option.
    
    Signed-off-by: Patrice Chotard <patrice.chotard@xxxxxxxxxxx>
    Link: https://msgid.link/r/20240618132951.2743935-4-patrice.chotard@xxxxxxxxxxx
    Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index da15c3f388d1f..5c57c7378ee70 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -4000,7 +4000,8 @@ static int __spi_validate(struct spi_device *spi, struct spi_message *message)
 				return -EINVAL;
 			if (xfer->tx_nbits != SPI_NBITS_SINGLE &&
 				xfer->tx_nbits != SPI_NBITS_DUAL &&
-				xfer->tx_nbits != SPI_NBITS_QUAD)
+				xfer->tx_nbits != SPI_NBITS_QUAD &&
+				xfer->tx_nbits != SPI_NBITS_OCTAL)
 				return -EINVAL;
 			if ((xfer->tx_nbits == SPI_NBITS_DUAL) &&
 				!(spi->mode & (SPI_TX_DUAL | SPI_TX_QUAD)))
@@ -4015,7 +4016,8 @@ static int __spi_validate(struct spi_device *spi, struct spi_message *message)
 				return -EINVAL;
 			if (xfer->rx_nbits != SPI_NBITS_SINGLE &&
 				xfer->rx_nbits != SPI_NBITS_DUAL &&
-				xfer->rx_nbits != SPI_NBITS_QUAD)
+				xfer->rx_nbits != SPI_NBITS_QUAD &&
+				xfer->rx_nbits != SPI_NBITS_OCTAL)
 				return -EINVAL;
 			if ((xfer->rx_nbits == SPI_NBITS_DUAL) &&
 				!(spi->mode & (SPI_RX_DUAL | SPI_RX_QUAD)))
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index 8cc7a99927f95..e5baf43bcfbb6 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -1049,12 +1049,13 @@ struct spi_transfer {
 	unsigned	dummy_data:1;
 	unsigned	cs_off:1;
 	unsigned	cs_change:1;
-	unsigned	tx_nbits:3;
-	unsigned	rx_nbits:3;
+	unsigned	tx_nbits:4;
+	unsigned	rx_nbits:4;
 	unsigned	timestamped:1;
 #define	SPI_NBITS_SINGLE	0x01 /* 1-bit transfer */
 #define	SPI_NBITS_DUAL		0x02 /* 2-bit transfer */
 #define	SPI_NBITS_QUAD		0x04 /* 4-bit transfer */
+#define	SPI_NBITS_OCTAL	0x08 /* 8-bit transfer */
 	u8		bits_per_word;
 	struct spi_delay	delay;
 	struct spi_delay	cs_change_delay;




[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux