mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-19 13:48:06 +00:00
8c405cdccc
The patches were generated from the RPi repo with the following command: git format-patch v6.6.34..rpi-6.1.y Some patches needed rebasing and, as usual, the applied and reverted, wireless drivers, Github workflows, READMEs and defconfigs patches were removed. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
29 lines
1.0 KiB
Diff
29 lines
1.0 KiB
Diff
From f0537b9db29afd851323e4b7d7ae3156d6bfb1b6 Mon Sep 17 00:00:00 2001
|
|
From: Phil Elwell <phil@raspberrypi.com>
|
|
Date: Mon, 13 May 2024 15:40:02 +0100
|
|
Subject: [PATCH 1087/1135] spi: dw: Handle any number of gpiod CS lines
|
|
|
|
Even when configured to use only gpiod CS lines, the DW SPI controller
|
|
still expects a bit to be set in the SER register, otherwise transfers
|
|
stall. For the csgpiod case, nominate bit 0 for the job.
|
|
|
|
See: https://github.com/raspberrypi/linux/issues/6159
|
|
|
|
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
|
|
---
|
|
drivers/spi/spi-dw-core.c | 3 ++-
|
|
1 file changed, 2 insertions(+), 1 deletion(-)
|
|
|
|
--- a/drivers/spi/spi-dw-core.c
|
|
+++ b/drivers/spi/spi-dw-core.c
|
|
@@ -98,7 +98,8 @@ void dw_spi_set_cs(struct spi_device *sp
|
|
* support active-high or active-low CS level.
|
|
*/
|
|
if (cs_high == enable)
|
|
- dw_writel(dws, DW_SPI_SER, BIT(spi_get_chipselect(spi, 0)));
|
|
+ dw_writel(dws, DW_SPI_SER,
|
|
+ BIT(spi_get_csgpiod(spi, 0) ? 0 : spi_get_chipselect(spi, 0)));
|
|
else
|
|
dw_writel(dws, DW_SPI_SER, 0);
|
|
}
|