diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0019-bcm2835-i2s-Enable-MMAP-support-via-a-DT-property.patch')
-rw-r--r-- | target/linux/brcm2708/patches-4.4/0019-bcm2835-i2s-Enable-MMAP-support-via-a-DT-property.patch | 44 |
1 files changed, 0 insertions, 44 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0019-bcm2835-i2s-Enable-MMAP-support-via-a-DT-property.patch b/target/linux/brcm2708/patches-4.4/0019-bcm2835-i2s-Enable-MMAP-support-via-a-DT-property.patch deleted file mode 100644 index ca9c521400..0000000000 --- a/target/linux/brcm2708/patches-4.4/0019-bcm2835-i2s-Enable-MMAP-support-via-a-DT-property.patch +++ /dev/null @@ -1,44 +0,0 @@ -From 8d32cc49fa07fb95dd101b2d544ed02027982cab Mon Sep 17 00:00:00 2001 -From: Matthias Reichl <hias@horus.com> -Date: Sun, 11 Oct 2015 15:55:21 +0200 -Subject: [PATCH] bcm2835-i2s: Enable MMAP support via a DT property - -Code ported from bcm2708-i2s driver in Raspberry Pi tree. - -RPi commit 7ee829fd77a30127db5d0b3c7d79b8718166e568 ("bcm2708-i2s: -Enable MMAP support via a DT property and overlay") - -The i2s driver used to claim to support MMAP, but that feature was disabled -when some problems were found. Add the ability to enable this feature -through Device Tree, using the i2s-mmap overlay. - -See: #1004 - -Signed-off-by: Matthias Reichl <hias@horus.com> ---- - sound/soc/bcm/bcm2835-i2s.c | 7 ++++++- - 1 file changed, 6 insertions(+), 1 deletion(-) - ---- a/sound/soc/bcm/bcm2835-i2s.c -+++ b/sound/soc/bcm/bcm2835-i2s.c -@@ -799,7 +799,7 @@ static const struct snd_soc_component_dr - .name = "bcm2835-i2s-comp", - }; - --static const struct snd_pcm_hardware bcm2835_pcm_hardware = { -+static struct snd_pcm_hardware bcm2835_pcm_hardware = { - .info = SNDRV_PCM_INFO_INTERLEAVED | - SNDRV_PCM_INFO_JOINT_DUPLEX, - .formats = SNDRV_PCM_FMTBIT_S16_LE | -@@ -835,6 +835,11 @@ static int bcm2835_i2s_probe(struct plat - } - dma_reg_base = be32_to_cpup(addr); - -+ if (of_property_read_bool(pdev->dev.of_node, "brcm,enable-mmap")) -+ bcm2835_pcm_hardware.info |= -+ SNDRV_PCM_INFO_MMAP | -+ SNDRV_PCM_INFO_MMAP_VALID; -+ - /* Request both ioareas */ - for (i = 0; i <= 1; i++) { - void __iomem *base; |