[PATCH] spi: spi-geni-qcom: Remove confusing comment about setting the watermark

From: Douglas Anderson
Date: Mon Jul 12 2021 - 11:50:44 EST

The comment in setup_fifo_xfer() about setting the watermark wasn't
quite proper grammar and also stopped making sense around commit
6d66507d9b55 ("spi: spi-geni-qcom: Don't wait to start 1st transfer if
transmitting"). After that commit we actually start the transfer
_before_ the watermark interrupt comes.

I don't think the comment really has any value anymore. We've already
got a comment when we grab the spinlock saying that our interrupt can
come any time as a result of the things in the locked section. Let's
just remove it.

Signed-off-by: Douglas Anderson <dianders@xxxxxxxxxxxx>

drivers/spi/spi-geni-qcom.c | 6 ------
1 file changed, 6 deletions(-)

diff --git a/drivers/spi/spi-geni-qcom.c b/drivers/spi/spi-geni-qcom.c
index b3861fb88711..2f51421e2a71 100644
--- a/drivers/spi/spi-geni-qcom.c
+++ b/drivers/spi/spi-geni-qcom.c
@@ -549,12 +549,6 @@ static void setup_fifo_xfer(struct spi_transfer *xfer,
geni_se_setup_m_cmd(se, m_cmd, FRAGMENTATION);
- /*
- * TX_WATERMARK_REG should be set after SPI configuration and
- * setting up GENI SE engine, as driver starts data transfer
- * for the watermark interrupt.
- */
if (m_cmd & SPI_TX_ONLY) {
if (geni_spi_handle_tx(mas))
writel(mas->tx_wm, se->base + SE_GENI_TX_WATERMARK_REG);