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authorÁlvaro Fernández Rojas <noltari@gmail.com>2019-07-31 18:23:26 +0200
committerÁlvaro Fernández Rojas <noltari@gmail.com>2019-08-02 18:51:32 +0200
commit19226502bf6393706defe7f049c587b32c9b4f33 (patch)
tree0bff89a72b7006051a6eec1ac3c0c9250490cf4f /target/linux/brcm2708/patches-4.19/950-0709-Pisound-Remove-spinlock-usage-around-spi_sync.patch
parent66458c49aa14ebc9ba2e4f9b6a323b8ff122807b (diff)
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brcm2708: update to latest patches from the RPi foundation
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0709-Pisound-Remove-spinlock-usage-around-spi_sync.patch')
-rw-r--r--target/linux/brcm2708/patches-4.19/950-0709-Pisound-Remove-spinlock-usage-around-spi_sync.patch31
1 files changed, 31 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0709-Pisound-Remove-spinlock-usage-around-spi_sync.patch b/target/linux/brcm2708/patches-4.19/950-0709-Pisound-Remove-spinlock-usage-around-spi_sync.patch
new file mode 100644
index 0000000000..c47f10575b
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0709-Pisound-Remove-spinlock-usage-around-spi_sync.patch
@@ -0,0 +1,31 @@
+From e7efd5c5b3e6e7f900eca6323fb593f80471a380 Mon Sep 17 00:00:00 2001
+From: Giedrius <giedrius@blokas.io>
+Date: Fri, 12 Jul 2019 17:45:55 +0300
+Subject: [PATCH 709/725] Pisound: Remove spinlock usage around spi_sync
+
+---
+ sound/soc/bcm/pisound.c | 5 -----
+ 1 file changed, 5 deletions(-)
+
+--- a/sound/soc/bcm/pisound.c
++++ b/sound/soc/bcm/pisound.c
+@@ -286,9 +286,6 @@ static irqreturn_t data_available_interr
+ return IRQ_HANDLED;
+ }
+
+-static DEFINE_SPINLOCK(spilock);
+-static unsigned long spilockflags;
+-
+ static uint16_t spi_transfer16(uint16_t val)
+ {
+ uint8_t txbuf[2];
+@@ -333,9 +330,7 @@ static void spi_transfer(const uint8_t *
+ transfer.delay_usecs = 10;
+ spi_message_add_tail(&transfer, &msg);
+
+- spin_lock_irqsave(&spilock, spilockflags);
+ err = spi_sync(pisnd_spi_device, &msg);
+- spin_unlock_irqrestore(&spilock, spilockflags);
+
+ if (err < 0) {
+ printe("spi_sync error %d\n", err);