diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0617-Pisound-Remove-spinlock-usage-around-spi_sync.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.19/950-0617-Pisound-Remove-spinlock-usage-around-spi_sync.patch | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0617-Pisound-Remove-spinlock-usage-around-spi_sync.patch b/target/linux/brcm2708/patches-4.19/950-0617-Pisound-Remove-spinlock-usage-around-spi_sync.patch new file mode 100644 index 0000000000..5dee4cb1d1 --- /dev/null +++ b/target/linux/brcm2708/patches-4.19/950-0617-Pisound-Remove-spinlock-usage-around-spi_sync.patch @@ -0,0 +1,31 @@ +From ace4e8240d581e6053f0165b2682a2db745d49dc Mon Sep 17 00:00:00 2001 +From: Giedrius <giedrius@blokas.io> +Date: Fri, 12 Jul 2019 17:45:55 +0300 +Subject: [PATCH] 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); |