diff options
Diffstat (limited to 'target/arm/bcm28xx/patches/3.18.16/0001-i2s-allow-to-enable-ALSA-MMAP.patch')
| -rw-r--r-- | target/arm/bcm28xx/patches/3.18.16/0001-i2s-allow-to-enable-ALSA-MMAP.patch | 54 |
1 files changed, 0 insertions, 54 deletions
diff --git a/target/arm/bcm28xx/patches/3.18.16/0001-i2s-allow-to-enable-ALSA-MMAP.patch b/target/arm/bcm28xx/patches/3.18.16/0001-i2s-allow-to-enable-ALSA-MMAP.patch deleted file mode 100644 index 2df6ea512..000000000 --- a/target/arm/bcm28xx/patches/3.18.16/0001-i2s-allow-to-enable-ALSA-MMAP.patch +++ /dev/null @@ -1,54 +0,0 @@ -From d017ad0179e407a81ed2423f7620d46584470ad4 Mon Sep 17 00:00:00 2001 -From: Waldemar Brodkorb <wbrodkorb@conet.de> -Date: Thu, 26 Mar 2015 13:00:07 +0100 -Subject: [PATCH] i2s: allow to enable ALSA MMAP - -For some ALSA plugins like dmix MMAP is required. -Allow to enable it via a module parameter called use_mmap. - -Signed-off-by: Waldemar Brodkorb <wbrodkorb@conet.de> ---- - sound/soc/bcm/bcm2708-i2s.c | 13 ++++++++++++- - 1 file changed, 12 insertions(+), 1 deletion(-) - -diff --git a/sound/soc/bcm/bcm2708-i2s.c b/sound/soc/bcm/bcm2708-i2s.c -index 7570e50..3d3692f 100644 ---- a/sound/soc/bcm/bcm2708-i2s.c -+++ b/sound/soc/bcm/bcm2708-i2s.c -@@ -171,6 +171,11 @@ static const unsigned int bcm2708_clk_freq[BCM2708_CLK_SRC_HDMI+1] = { - /* I2S pin configuration */ - static int bcm2708_i2s_gpio=BCM2708_I2S_GPIO_AUTO; - -+static bool use_mmap = 0; -+module_param(use_mmap, bool, S_IRUGO); -+MODULE_PARM_DESC(use_mmap, "Use MMAP"); -+ -+ - /* General device struct */ - struct bcm2708_i2s_dev { - struct device *dev; -@@ -874,7 +879,7 @@ static const struct snd_soc_component_driver bcm2708_i2s_component = { - .name = "bcm2708-i2s-comp", - }; - --static const struct snd_pcm_hardware bcm2708_pcm_hardware = { -+static struct snd_pcm_hardware bcm2708_pcm_hardware = { - .info = SNDRV_PCM_INFO_INTERLEAVED | - SNDRV_PCM_INFO_JOINT_DUPLEX, - .formats = SNDRV_PCM_FMTBIT_S16_LE | -@@ -966,6 +971,12 @@ static int bcm2708_i2s_probe(struct platform_device *pdev) - return ret; - } - -+ if (use_mmap) { -+ printk("Enable ALSA MMAP support for I2S\n"); -+ bcm2708_pcm_hardware.info |= SNDRV_PCM_INFO_MMAP; -+ bcm2708_pcm_hardware.info |= SNDRV_PCM_INFO_MMAP_VALID; -+ } -+ - ret = snd_dmaengine_pcm_register(&pdev->dev, - &bcm2708_dmaengine_pcm_config, - SND_DMAENGINE_PCM_FLAG_COMPAT); --- -1.9.1 - |