* [PATCH] spi: bcm2835: Raise maximum number of slaves to 4
@ 2020-01-09 12:23 Lukas Wunner
[not found] ` <01453fd062de2d49bd74a847e13a0781cbf8143d.1578572268.git.lukas-JFq808J9C/izQB+pC5nmwQ@public.gmane.org>
0 siblings, 1 reply; 3+ messages in thread
From: Lukas Wunner @ 2020-01-09 12:23 UTC (permalink / raw)
To: Mark Brown
Cc: linux-spi-u79uwXL29TY76Z2rM5mHXA,
linux-rpi-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
Nicolas Saenz Julienne
The "RevPi Connect Flat" PLC offered by KUNBUS has 4 slaves attached
to the BCM2835 SPI master. Raise the maximum number of slaves in the
driver accordingly.
Signed-off-by: Lukas Wunner <lukas-JFq808J9C/izQB+pC5nmwQ@public.gmane.org>
---
drivers/spi/spi-bcm2835.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/spi/spi-bcm2835.c b/drivers/spi/spi-bcm2835.c
index b784c9fdf9ec..11c235879bb7 100644
--- a/drivers/spi/spi-bcm2835.c
+++ b/drivers/spi/spi-bcm2835.c
@@ -68,7 +68,7 @@
#define BCM2835_SPI_FIFO_SIZE 64
#define BCM2835_SPI_FIFO_SIZE_3_4 48
#define BCM2835_SPI_DMA_MIN_LENGTH 96
-#define BCM2835_SPI_NUM_CS 3 /* raise as necessary */
+#define BCM2835_SPI_NUM_CS 4 /* raise as necessary */
#define BCM2835_SPI_MODE_BITS (SPI_CPOL | SPI_CPHA | SPI_CS_HIGH \
| SPI_NO_CS | SPI_3WIRE)
--
2.24.0
^ permalink raw reply related [flat|nested] 3+ messages in thread[parent not found: <01453fd062de2d49bd74a847e13a0781cbf8143d.1578572268.git.lukas-JFq808J9C/izQB+pC5nmwQ@public.gmane.org>]
* Re: [PATCH] spi: bcm2835: Raise maximum number of slaves to 4 [not found] ` <01453fd062de2d49bd74a847e13a0781cbf8143d.1578572268.git.lukas-JFq808J9C/izQB+pC5nmwQ@public.gmane.org> @ 2020-01-09 12:52 ` Nicolas Saenz Julienne 2020-01-09 21:31 ` Applied "spi: bcm2835: Raise maximum number of slaves to 4" to the spi tree Mark Brown 1 sibling, 0 replies; 3+ messages in thread From: Nicolas Saenz Julienne @ 2020-01-09 12:52 UTC (permalink / raw) To: Lukas Wunner, Mark Brown Cc: linux-rpi-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r, linux-spi-u79uwXL29TY76Z2rM5mHXA [-- Attachment #1.1: Type: text/plain, Size: 1061 bytes --] On Thu, 2020-01-09 at 13:23 +0100, Lukas Wunner wrote: > The "RevPi Connect Flat" PLC offered by KUNBUS has 4 slaves attached > to the BCM2835 SPI master. Raise the maximum number of slaves in the > driver accordingly. > > Signed-off-by: Lukas Wunner <lukas-JFq808J9C/izQB+pC5nmwQ@public.gmane.org> > --- Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne-l3A5Bk7waGM@public.gmane.org> Thanks! > drivers/spi/spi-bcm2835.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/spi/spi-bcm2835.c b/drivers/spi/spi-bcm2835.c > index b784c9fdf9ec..11c235879bb7 100644 > --- a/drivers/spi/spi-bcm2835.c > +++ b/drivers/spi/spi-bcm2835.c > @@ -68,7 +68,7 @@ > #define BCM2835_SPI_FIFO_SIZE 64 > #define BCM2835_SPI_FIFO_SIZE_3_4 48 > #define BCM2835_SPI_DMA_MIN_LENGTH 96 > -#define BCM2835_SPI_NUM_CS 3 /* raise as necessary */ > +#define BCM2835_SPI_NUM_CS 4 /* raise as necessary */ > #define BCM2835_SPI_MODE_BITS (SPI_CPOL | SPI_CPHA | SPI_CS_HIGH \ > | SPI_NO_CS | SPI_3WIRE) > [-- Attachment #1.2: This is a digitally signed message part --] [-- Type: application/pgp-signature, Size: 488 bytes --] [-- Attachment #2: Type: text/plain, Size: 206 bytes --] _______________________________________________ linux-rpi-kernel mailing list linux-rpi-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org http://lists.infradead.org/mailman/listinfo/linux-rpi-kernel ^ permalink raw reply [flat|nested] 3+ messages in thread
* Applied "spi: bcm2835: Raise maximum number of slaves to 4" to the spi tree [not found] ` <01453fd062de2d49bd74a847e13a0781cbf8143d.1578572268.git.lukas-JFq808J9C/izQB+pC5nmwQ@public.gmane.org> 2020-01-09 12:52 ` Nicolas Saenz Julienne @ 2020-01-09 21:31 ` Mark Brown 1 sibling, 0 replies; 3+ messages in thread From: Mark Brown @ 2020-01-09 21:31 UTC (permalink / raw) To: Lukas Wunner Cc: linux-rpi-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r, linux-spi-u79uwXL29TY76Z2rM5mHXA, Mark Brown, Nicolas Saenz Julienne The patch spi: bcm2835: Raise maximum number of slaves to 4 has been applied to the spi tree at https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-5.6 All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark >From 603e92ff10a81b965ac41dc9fb3d287408e834fb Mon Sep 17 00:00:00 2001 From: Lukas Wunner <lukas-JFq808J9C/izQB+pC5nmwQ@public.gmane.org> Date: Thu, 9 Jan 2020 13:23:41 +0100 Subject: [PATCH] spi: bcm2835: Raise maximum number of slaves to 4 The "RevPi Connect Flat" PLC offered by KUNBUS has 4 slaves attached to the BCM2835 SPI master. Raise the maximum number of slaves in the driver accordingly. Signed-off-by: Lukas Wunner <lukas-JFq808J9C/izQB+pC5nmwQ@public.gmane.org> Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne-l3A5Bk7waGM@public.gmane.org> Link: https://lore.kernel.org/r/01453fd062de2d49bd74a847e13a0781cbf8143d.1578572268.git.lukas-JFq808J9C/izQB+pC5nmwQ@public.gmane.org Signed-off-by: Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> --- drivers/spi/spi-bcm2835.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/spi/spi-bcm2835.c b/drivers/spi/spi-bcm2835.c index b784c9fdf9ec..11c235879bb7 100644 --- a/drivers/spi/spi-bcm2835.c +++ b/drivers/spi/spi-bcm2835.c @@ -68,7 +68,7 @@ #define BCM2835_SPI_FIFO_SIZE 64 #define BCM2835_SPI_FIFO_SIZE_3_4 48 #define BCM2835_SPI_DMA_MIN_LENGTH 96 -#define BCM2835_SPI_NUM_CS 3 /* raise as necessary */ +#define BCM2835_SPI_NUM_CS 4 /* raise as necessary */ #define BCM2835_SPI_MODE_BITS (SPI_CPOL | SPI_CPHA | SPI_CS_HIGH \ | SPI_NO_CS | SPI_3WIRE) -- 2.20.1 ^ permalink raw reply related [flat|nested] 3+ messages in thread
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2020-01-09 12:23 [PATCH] spi: bcm2835: Raise maximum number of slaves to 4 Lukas Wunner
[not found] ` <01453fd062de2d49bd74a847e13a0781cbf8143d.1578572268.git.lukas-JFq808J9C/izQB+pC5nmwQ@public.gmane.org>
2020-01-09 12:52 ` Nicolas Saenz Julienne
2020-01-09 21:31 ` Applied "spi: bcm2835: Raise maximum number of slaves to 4" to the spi tree Mark Brown
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