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ramips: remove useless cs gpio code for rt2800 SPI driver

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The SPI driver framework can handle it automatically in
spi.c:spi_setup():spi_set_cs():gpiod_set_value_cansleep().

Signed-off-by: Shiji Yang <yangshiji66@qq.com>
Link: https://github.com/openwrt/openwrt/pull/16636
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This commit is contained in:
Shiji Yang 2024-10-07 23:21:16 +08:00 committed by Hauke Mehrtens
parent 6e40f98208
commit 09a6e4747f
1 changed files with 1 additions and 17 deletions
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18
target/linux/ramips/patches-6.6/821-SPI-ralink-add-Ralink-SoC-spi-driver.patch
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@ -41,7 +41,7 @@ Acked-by: John Crispin <blogic@openwrt.org>
obj-$(CONFIG_SPI_SC18IS602) += spi-sc18is602.o obj-$(CONFIG_SPI_SC18IS602) += spi-sc18is602.o
--- /dev/null --- /dev/null
+++ b/drivers/spi/spi-rt2880.c +++ b/drivers/spi/spi-rt2880.c
@@ -0,0 +1,535 @@ @@ -0,0 +1,519 @@
+/* +/*
+ * spi-rt2880.c -- Ralink RT288x/RT305x SPI controller driver + * spi-rt2880.c -- Ralink RT288x/RT305x SPI controller driver
+ * + *
@ -66,7 +66,6 @@ Acked-by: John Crispin <blogic@openwrt.org>
+#include <linux/reset.h> +#include <linux/reset.h>
+#include <linux/spi/spi.h> +#include <linux/spi/spi.h>
+#include <linux/platform_device.h> +#include <linux/platform_device.h>
+#include <linux/gpio.h>
+ +
+#define DRIVER_NAME "spi-rt2880" +#define DRIVER_NAME "spi-rt2880"
+ +
@ -333,18 +332,6 @@ Acked-by: John Crispin <blogic@openwrt.org>
+ return err; + return err;
+} +}
+ +
+/* copy from spi.c */
+static void spi_set_cs(struct spi_device *spi, bool enable)
+{
+ if (spi->mode & SPI_CS_HIGH)
+ enable = !enable;
+
+ if (spi->cs_gpiod)
+ gpiod_set_value(spi->cs_gpiod, !enable);
+ else if (spi->master->set_cs)
+ spi->master->set_cs(spi, !enable);
+}
+
+static int rt2880_spi_setup(struct spi_device *spi) +static int rt2880_spi_setup(struct spi_device *spi)
+{ +{
+ struct spi_master *master = spi->master; + struct spi_master *master = spi->master;
@ -401,9 +388,6 @@ Acked-by: John Crispin <blogic@openwrt.org>
+ if (reg != old_reg) + if (reg != old_reg)
+ rt2880_spi_write(rs, arbit_off, reg); + rt2880_spi_write(rs, arbit_off, reg);
+ +
+ /* deselected the spi device */
+ spi_set_cs(spi, false);
+
+ rt2880_dump_reg(master); + rt2880_dump_reg(master);
+ +
+ return 0; + return 0;