[PATCH v2 5/6] spi: tegra210-quad: modify chip select (CS) deactivation
From: Vishwaroop A
Date: Wed Feb 12 2025 - 09:48:59 EST
Modify the chip select (CS) deactivation and inter-transfer delay
execution to be performed only during the DATA_TRANSFER phase when
the cs_change flag is not set. This ensures proper CS handling and
timing between transfers while eliminating redundant operations.
Fixes: 1b8342cc4a38 ("spi: tegra210-quad: combined sequence mode")
Signed-off-by: Vishwaroop A <va@xxxxxxxxxx>
---
drivers/spi/spi-tegra210-quad.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/spi/spi-tegra210-quad.c b/drivers/spi/spi-tegra210-quad.c
index 2d7a2e3da337..04f41e92c1e2 100644
--- a/drivers/spi/spi-tegra210-quad.c
+++ b/drivers/spi/spi-tegra210-quad.c
@@ -1171,16 +1171,16 @@ static int tegra_qspi_combined_seq_xfer(struct tegra_qspi *tqspi,
ret = -EIO;
goto exit;
}
- if (!xfer->cs_change) {
- tegra_qspi_transfer_end(spi);
- spi_transfer_delay_exec(xfer);
- }
break;
default:
ret = -EINVAL;
goto exit;
}
msg->actual_length += xfer->len;
+ if (!xfer->cs_change && transfer_phase == DATA_TRANSFER) {
+ tegra_qspi_transfer_end(spi);
+ spi_transfer_delay_exec(xfer);
+ }
transfer_phase++;
}
ret = 0;
--
2.17.1