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ramips: remove broken and bogus spinlock in the SPI driver 

Based on patch by Neil Brown

Signed-off-by: Felix Fietkau <nbd@nbd.name>
openwrt-18.06
Felix Fietkau 2018-04-14 19:52:36 +02:00
parent ceff5d8c82
commit 31a6ee0219
1 changed files with 1 additions and 4 deletions
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5
target/linux/ramips/patches-4.14/0043-spi-add-mt7621-support.patch
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@ -38,7 +38,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
obj-$(CONFIG_SPI_OC_TINY) += spi-oc-tiny.o obj-$(CONFIG_SPI_OC_TINY) += spi-oc-tiny.o
--- /dev/null --- /dev/null
+++ b/drivers/spi/spi-mt7621.c +++ b/drivers/spi/spi-mt7621.c
@@ -0,0 +1,491 @@ @@ -0,0 +1,488 @@
+/* +/*
+ * spi-mt7621.c -- MediaTek MT7621 SPI controller driver + * spi-mt7621.c -- MediaTek MT7621 SPI controller driver
+ * + *
@ -106,7 +106,6 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
+ unsigned int sys_freq; + unsigned int sys_freq;
+ unsigned int speed; + unsigned int speed;
+ struct clk *clk; + struct clk *clk;
+ spinlock_t lock;
+ +
+ struct mt7621_spi_ops *ops; + struct mt7621_spi_ops *ops;
+}; +};
@ -438,7 +437,6 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
+ const struct of_device_id *match; + const struct of_device_id *match;
+ struct spi_master *master; + struct spi_master *master;
+ struct mt7621_spi *rs; + struct mt7621_spi *rs;
+ unsigned long flags;
+ void __iomem *base; + void __iomem *base;
+ struct resource *r; + struct resource *r;
+ int status = 0; + int status = 0;
@ -490,7 +488,6 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
+ rs->sys_freq = clk_get_rate(rs->clk); + rs->sys_freq = clk_get_rate(rs->clk);
+ rs->ops = ops; + rs->ops = ops;
+ dev_info(&pdev->dev, "sys_freq: %u\n", rs->sys_freq); + dev_info(&pdev->dev, "sys_freq: %u\n", rs->sys_freq);
+ spin_lock_irqsave(&rs->lock, flags);
+ +
+ device_reset(&pdev->dev); + device_reset(&pdev->dev);
+ +