From: Felix Fietkau Date: Sat, 14 Apr 2018 17:52:36 +0000 (+0200) Subject: ramips: remove broken and bogus spinlock in the SPI driver X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=31a6ee021948a88b9b1e484b412be21f7169184e;p=openwrt%2Fstaging%2Fthess.git ramips: remove broken and bogus spinlock in the SPI driver Based on patch by Neil Brown Signed-off-by: Felix Fietkau --- diff --git a/target/linux/ramips/patches-4.14/0043-spi-add-mt7621-support.patch b/target/linux/ramips/patches-4.14/0043-spi-add-mt7621-support.patch index 5f939e3e40..c615601e55 100644 --- a/target/linux/ramips/patches-4.14/0043-spi-add-mt7621-support.patch +++ b/target/linux/ramips/patches-4.14/0043-spi-add-mt7621-support.patch @@ -38,7 +38,7 @@ Signed-off-by: John Crispin obj-$(CONFIG_SPI_OC_TINY) += spi-oc-tiny.o --- /dev/null +++ b/drivers/spi/spi-mt7621.c -@@ -0,0 +1,491 @@ +@@ -0,0 +1,488 @@ +/* + * spi-mt7621.c -- MediaTek MT7621 SPI controller driver + * @@ -106,7 +106,6 @@ Signed-off-by: John Crispin + unsigned int sys_freq; + unsigned int speed; + struct clk *clk; -+ spinlock_t lock; + + struct mt7621_spi_ops *ops; +}; @@ -438,7 +437,6 @@ Signed-off-by: John Crispin + const struct of_device_id *match; + struct spi_master *master; + struct mt7621_spi *rs; -+ unsigned long flags; + void __iomem *base; + struct resource *r; + int status = 0; @@ -490,7 +488,6 @@ Signed-off-by: John Crispin + rs->sys_freq = clk_get_rate(rs->clk); + rs->ops = ops; + dev_info(&pdev->dev, "sys_freq: %u\n", rs->sys_freq); -+ spin_lock_irqsave(&rs->lock, flags); + + device_reset(&pdev->dev); +