From: Vishwaroop A <va@nvidia.com>
Date: Wed, 16 Apr 2025 11:06:03 +0000 (+0000)
Subject: spi: tegra210-quad: modify chip select (CS) deactivation
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=d8966b65413390d1b5b706886987caac05fbe024;p=users%2Fjedix%2Flinux-maple.git

spi: tegra210-quad: modify chip select (CS) deactivation

Modify the chip select (CS) deactivation and inter-transfer delay
execution 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@nvidia.com>
Link: https://patch.msgid.link/20250416110606.2737315-4-va@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
---

diff --git a/drivers/spi/spi-tegra210-quad.c b/drivers/spi/spi-tegra210-quad.c
index a9359b005ee8..159fbbfd4a38 100644
--- a/drivers/spi/spi-tegra210-quad.c
+++ b/drivers/spi/spi-tegra210-quad.c
@@ -1159,16 +1159,16 @@ 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;