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[v5,5/7] mtd: m25p80: add support of octal mode I/O transfer

Message ID 1543826226-30898-6-git-send-email-yogeshnarayan.gaur@nxp.com (mailing list archive)
State Superseded
Headers show
Series spi: add support for octal mode | expand

Commit Message

Yogesh Narayan Gaur Dec. 3, 2018, 8:39 a.m. UTC 
Add support for octal mode I/O data transfer based on the controller (spi)
mode.
Assign hw-capability mask bits for octal transfer.

Signed-off-by: Yogesh Gaur <yogeshnarayan.gaur@nxp.com>
---
Changes for v5:
- Modified string 'octo' with 'octal'.
Changes for v4:
- None
Changes for v3:
- Modified string 'octal' with 'octo'.
Changes for v2:
- Incorporated review comments of Boris.

 drivers/mtd/devices/m25p80.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index c4a1d04..651bab6 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -195,7 +195,14 @@  static int m25p_probe(struct spi_mem *spimem)
 	spi_mem_set_drvdata(spimem, flash);
 	flash->spimem = spimem;
 
-	if (spi->mode & SPI_RX_QUAD) {
+	if (spi->mode & SPI_RX_OCTAL) {
+		hwcaps.mask |= SNOR_HWCAPS_READ_1_1_8;
+
+		if (spi->mode & SPI_TX_OCTAL)
+			hwcaps.mask |= (SNOR_HWCAPS_READ_1_8_8 |
+					SNOR_HWCAPS_PP_1_1_8 |
+					SNOR_HWCAPS_PP_1_8_8);
+	} else if (spi->mode & SPI_RX_QUAD) {
 		hwcaps.mask |= SNOR_HWCAPS_READ_1_1_4;
 
 		if (spi->mode & SPI_TX_QUAD)