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| author | Álvaro Fernández Rojas <noltari@gmail.com> | 2017-02-07 22:30:59 +0100 |
|---|---|---|
| committer | Álvaro Fernández Rojas <noltari@gmail.com> | 2017-02-07 23:00:21 +0100 |
| commit | d9d090e52082635a24aeaefdc6bfe61ab97f38bb (patch) | |
| tree | 6e725a11b5c44ee1a7ce95a0b2bcba4cae1e6f5c /target/linux/brcm2708/patches-4.4/0299-bcm2835-i2s-Reduce-the-TX-DREQ-threshold.patch | |
| parent | ada91d8a245690b3bc8d2a62b391d2725aea5c8e (diff) | |
| download | upstream-d9d090e52082635a24aeaefdc6bfe61ab97f38bb.tar.gz upstream-d9d090e52082635a24aeaefdc6bfe61ab97f38bb.tar.bz2 upstream-d9d090e52082635a24aeaefdc6bfe61ab97f38bb.zip | |
brcm2708: remove linux 4.4 support
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0299-bcm2835-i2s-Reduce-the-TX-DREQ-threshold.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.4/0299-bcm2835-i2s-Reduce-the-TX-DREQ-threshold.patch | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0299-bcm2835-i2s-Reduce-the-TX-DREQ-threshold.patch b/target/linux/brcm2708/patches-4.4/0299-bcm2835-i2s-Reduce-the-TX-DREQ-threshold.patch deleted file mode 100644 index ca2ba89595..0000000000 --- a/target/linux/brcm2708/patches-4.4/0299-bcm2835-i2s-Reduce-the-TX-DREQ-threshold.patch +++ /dev/null @@ -1,48 +0,0 @@ -From 5178a5d56cff7e0db126a456355a710782d51ba8 Mon Sep 17 00:00:00 2001 -From: Phil Elwell <phil@raspberrypi.org> -Date: Thu, 21 Apr 2016 15:44:14 +0100 -Subject: [PATCH] bcm2835-i2s: Reduce the TX DREQ threshold - -TX FIFO overrun is thought to be the cause of channel swapping, so -reducing the DREQ threshold seems reasonable and appears to be -effective. - -See: https://github.com/raspberrypi/linux/issues/1417 - -Signed-off-by: Phil Elwell <phil@raspberrypi.org> ---- - sound/soc/bcm/bcm2835-i2s.c | 21 ++++++++++++++------- - 1 file changed, 14 insertions(+), 7 deletions(-) - ---- a/sound/soc/bcm/bcm2835-i2s.c -+++ b/sound/soc/bcm/bcm2835-i2s.c -@@ -555,15 +555,22 @@ static int bcm2835_i2s_hw_params(struct - - /* Setup the DMA parameters */ - regmap_update_bits(dev->i2s_regmap, BCM2835_I2S_CS_A_REG, -- BCM2835_I2S_RXTHR(1) -- | BCM2835_I2S_TXTHR(1) -- | BCM2835_I2S_DMAEN, 0xffffffff); -+ BCM2835_I2S_RXTHR(3) -+ | BCM2835_I2S_TXTHR(3) -+ | BCM2835_I2S_DMAEN, -+ BCM2835_I2S_RXTHR(1) -+ | BCM2835_I2S_TXTHR(1) -+ | BCM2835_I2S_DMAEN); - - regmap_update_bits(dev->i2s_regmap, BCM2835_I2S_DREQ_A_REG, -- BCM2835_I2S_TX_PANIC(0x10) -- | BCM2835_I2S_RX_PANIC(0x30) -- | BCM2835_I2S_TX(0x30) -- | BCM2835_I2S_RX(0x20), 0xffffffff); -+ BCM2835_I2S_TX_PANIC(0x7f) -+ | BCM2835_I2S_RX_PANIC(0x7f) -+ | BCM2835_I2S_TX(0x7f) -+ | BCM2835_I2S_RX(0x7f), -+ BCM2835_I2S_TX_PANIC(0x10) -+ | BCM2835_I2S_RX_PANIC(0x30) -+ | BCM2835_I2S_TX(0x20) -+ | BCM2835_I2S_RX(0x20)); - - /* Clear FIFOs */ - bcm2835_i2s_clear_fifos(dev, true, true); |