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ath79: add SPI_MASTER_GPIO_SS flag

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Add the SPI_MASTER_GPIO_SS flag for the spi-ath79 driver. Otherwise,
the custom chipselect function is never called. This breaks hardware,
where the three dedicated chipselect lines are used instead of generic
GPIO pins.

Signed-off-by: David Bauer <mail@david-bauer.net>
This commit is contained in:
David Bauer 2021-04-29 14:07:01 +02:00
parent df07bafcd2
commit a1d405ff8a
1 changed files with 27 additions and 0 deletions
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27
target/linux/ath79/patches-5.10/411-spi-ath79-add-SPI_MASTER_GPIO_SS-flag.patch Normal file
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@ -0,0 +1,27 @@
From 55e2fff639d4297ffeb478113aef6d3e26c2c4c2 Mon Sep 17 00:00:00 2001
From: David Bauer <mail@david-bauer.net>
Date: Wed, 17 Feb 2021 02:44:55 +0100
Subject: [PATCH 1/2] spi: ath79: add SPI_MASTER_GPIO_SS flag
Add the SPI_MASTER_GPIO_SS flag for the spi-ath79 driver. Otherwise,
the custom chipselect function is never called. This breaks hardware,
where the three dedicated chipselect lines are used instead of generic
GPIO pins.
Fixes commit 4a07b8bcd503 ("spi: bitbang: Make chipselect callback optional")
Signed-off-by: David Bauer <mail@david-bauer.net>
---
drivers/spi/spi-ath79.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/spi/spi-ath79.c
+++ b/drivers/spi/spi-ath79.c
@@ -186,6 +186,7 @@ static int ath79_spi_probe(struct platfo
master->use_gpio_descriptors = true;
master->bits_per_word_mask = SPI_BPW_RANGE_MASK(1, 32);
+ master->flags = SPI_MASTER_GPIO_SS;
sp->bitbang.master = master;
sp->bitbang.chipselect = ath79_spi_chipselect;