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ramips: fix timing issues when using MT7621 spi

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Signed-off-by: John Crispin <john@phrozen.org>
This commit is contained in:
John Crispin 2016-05-23 12:16:29 +02:00
parent e0b241bb48
commit bf6634339a
1 changed files with 6 additions and 3 deletions
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9
target/linux/ramips/patches-4.4/0043-spi-add-mt7621-support.patch
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@ -13,7 +13,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -483,6 +483,12 @@ config SPI_RT2880
@@ -483,6 +483,12 @@
help
This selects a driver for the Ralink RT288x/RT305x SPI Controller.
@ -28,7 +28,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
depends on ARCH_S3C24XX
--- a/drivers/spi/Makefile
+++ b/drivers/spi/Makefile
@@ -51,6 +51,7 @@ obj-$(CONFIG_SPI_MPC512x_PSC) += spi-mp
@@ -51,6 +51,7 @@
obj-$(CONFIG_SPI_MPC52xx_PSC) += spi-mpc52xx-psc.o
obj-$(CONFIG_SPI_MPC52xx) += spi-mpc52xx.o
obj-$(CONFIG_SPI_MT65XX) += spi-mt65xx.o
@ -38,7 +38,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
obj-$(CONFIG_SPI_OC_TINY) += spi-oc-tiny.o
--- /dev/null
+++ b/drivers/spi/spi-mt7621.c
@@ -0,0 +1,480 @@
@@ -0,0 +1,483 @@
+/*
+ * spi-mt7621.c -- MediaTek MT7621 SPI controller driver
+ *
@ -240,6 +240,9 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
+ if (!buf)
+ continue;
+
+ if (t->speed_hz < speed)
+ speed = t->speed_hz;
+
+ if (WARN_ON(len + t->len > 36)) {
+ status = -EIO;
+ goto msg_done;