openwrt/target/linux/ath79/patches-5.10/402-v5.17-spi-ar934x-fix-transfer-and-word-delays.patch
Oskari Lemmela f8e65fecee ath79: fix ar934x spi driver delays
Backport spi driver delay fixes from the 5.17-rc1 kernel.

Signed-off-by: Oskari Lemmela <oskari@lemmela.net>
[port also to kernel 5.15]
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2022-04-05 17:31:04 +02:00

28 lines
792 B
Diff

From c70282457c380db7deb57c81a6894debc8f88efa Mon Sep 17 00:00:00 2001
From: Oskari Lemmela <oskari@lemmela.net>
Date: Wed, 22 Dec 2021 07:59:58 +0200
Subject: [PATCH] spi: ar934x: fix transfer and word delays
Add missing delay between transferred messages and words.
Signed-off-by: Oskari Lemmela <oskari@lemmela.net>
Link: https://lore.kernel.org/r/20211222055958.1383233-3-oskari@lemmela.net
Signed-off-by: Mark Brown <broonie@kernel.org>
---
drivers/spi/spi-ar934x.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/spi/spi-ar934x.c
+++ b/drivers/spi/spi-ar934x.c
@@ -137,8 +137,10 @@ static int ar934x_spi_transfer_one_messa
reg >>= 8;
}
}
+ spi_delay_exec(&t->word_delay, t);
}
m->actual_length += t->len;
+ spi_transfer_delay_exec(t);
}
msg_done: