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From: David Bauer <>
Subject: [PATCH 1/2] spi: ath79: always call chipselect function
Date: Wed,  3 Mar 2021 17:08:36 +0100	[thread overview]
Message-ID: <> (raw)

spi-bitbang has to call the chipselect function on the ath79 SPI driver
in order to communicate with the SPI slave device, as the ath79 SPI
driver has three dedicated chipselect lines but can also be used with
GPIOs for the CS lines.

Fixes commit 4a07b8bcd503 ("spi: bitbang: Make chipselect callback optional")

Signed-off-by: David Bauer <>
 drivers/spi/spi-ath79.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/spi/spi-ath79.c b/drivers/spi/spi-ath79.c
index eb9a243e9526..436327fb58de 100644
--- a/drivers/spi/spi-ath79.c
+++ b/drivers/spi/spi-ath79.c
@@ -158,6 +158,7 @@ static int ath79_spi_probe(struct platform_device *pdev)
 	master->bits_per_word_mask = SPI_BPW_RANGE_MASK(1, 32);
 	master->setup = spi_bitbang_setup;
 	master->cleanup = spi_bitbang_cleanup;
+	master->flags = SPI_MASTER_GPIO_SS;
 	if (pdata) {
 		master->bus_num = pdata->bus_num;
 		master->num_chipselect = pdata->num_chipselect;

             reply	other threads:[~2021-03-04  0:30 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-03 16:08 David Bauer [this message]
2021-03-03 16:08 ` [PATCH 2/2] spi: ath79: remove spi-master setup and cleanup assignment David Bauer
2021-03-04 18:31 ` [PATCH 1/2] spi: ath79: always call chipselect function Mark Brown

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