linux-kernel - [PATCH] spi: tegra210-quad: Fix validate combined sequence

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Date:   Fri, 24 Feb 2023 22:10:34 +0530
From:   Krishna Yarlagadda <kyarlagadda@...dia.com>
To:     <broonie@...nel.org>, <linux-spi@...r.kernel.org>,
        <linux-tegra@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:     <thierry.reding@...il.com>, <jonathanh@...dia.com>,
        <skomatineni@...dia.com>, <ldewangan@...dia.com>,
        Krishna Yarlagadda <kyarlagadda@...dia.com>
Subject: [PATCH] spi: tegra210-quad: Fix validate combined sequence

Check for non dma transfers that do not fit in FIFO has issue and skips
combined sequence for Tegra234 & Tegra241 which does not have GPCDMA.

Fixes: 1b8342cc4a38 ("spi: tegra210-quad: combined sequence mode")

Signed-off-by: Krishna Yarlagadda <kyarlagadda@...dia.com>
---
 drivers/spi/spi-tegra210-quad.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-tegra210-quad.c b/drivers/spi/spi-tegra210-quad.c
index 2291effc2c44..39dec2dc161b 100644
--- a/drivers/spi/spi-tegra210-quad.c
+++ b/drivers/spi/spi-tegra210-quad.c
@@ -1314,7 +1314,7 @@ static bool tegra_qspi_validate_cmb_seq(struct tegra_qspi *tqspi,
 	if (xfer->len > 4 || xfer->len < 3)
 		return false;
 	xfer = list_next_entry(xfer, transfer_list);
-	if (!tqspi->soc_data->has_dma || xfer->len > (QSPI_FIFO_DEPTH << 2))
+	if (!tqspi->soc_data->has_dma && xfer->len > (QSPI_FIFO_DEPTH << 2))
 		return false;
 
 	return true;
-- 
2.17.1