[alsa-devel] [PATCH] ASoC: rt5670: patch reg-0x8a
reg-8a assign the tracking source for each ASRC tracker. The default value is 0x0000 which means all ASRC trackers will track LRCK1. But in most case, we wish each ASRC tracker track the corresponding LRCK. i.e. ASRC1 tracks LRCK1, ASRC2 tracks LRCK2 and so on. So, we rewrite reg-8a as 0x0123.
Signed-off-by: Bard Liao bardliao@realtek.com --- sound/soc/codecs/rt5670.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/sound/soc/codecs/rt5670.c b/sound/soc/codecs/rt5670.c index 0af5ddb..8ef467f 100644 --- a/sound/soc/codecs/rt5670.c +++ b/sound/soc/codecs/rt5670.c @@ -55,6 +55,7 @@ static const struct reg_sequence init_list[] = { { RT5670_PR_BASE + 0x14, 0x9a8a }, { RT5670_PR_BASE + 0x38, 0x3ba1 }, { RT5670_PR_BASE + 0x3d, 0x3640 }, + { 0x8a, 0x0123 }, };
static const struct reg_default rt5670_reg[] = { @@ -131,7 +132,7 @@ static const struct reg_default rt5670_reg[] = { { 0x87, 0x0000 }, { 0x88, 0x0000 }, { 0x89, 0x0000 }, - { 0x8a, 0x0000 }, + { 0x8a, 0x0123 }, { 0x8b, 0x0000 }, { 0x8c, 0x0003 }, { 0x8d, 0x0000 },
On Fri, Jun 17, 2016 at 12:08:02PM +0800, Bard Liao wrote:
reg-8a assign the tracking source for each ASRC tracker. The default value is 0x0000 which means all ASRC trackers will track LRCK1. But in most case, we wish each ASRC tracker track the corresponding LRCK. i.e. ASRC1 tracks LRCK1, ASRC2 tracks LRCK2 and so on. So, we rewrite reg-8a as 0x0123.
Shouldn't this be configurable?
-----Original Message----- From: Mark Brown [mailto:broonie@kernel.org] Sent: Friday, June 17, 2016 7:10 PM To: Bard Liao Cc: lgirdwood@gmail.com; alsa-devel@alsa-project.org; lars@metafoo.de; Flove; Oder Chiou; Jack Yu Subject: Re: [PATCH] ASoC: rt5670: patch reg-0x8a
On Fri, Jun 17, 2016 at 12:08:02PM +0800, Bard Liao wrote:
reg-8a assign the tracking source for each ASRC tracker. The default value is 0x0000 which means all ASRC trackers will track LRCK1. But in most case, we wish each ASRC tracker track the corresponding LRCK. i.e. ASRC1 tracks LRCK1, ASRC2 tracks LRCK2 and so on. So, we rewrite reg-8a as 0x0123.
Shouldn't this be configurable?
In hardware of view, yes. But, it is not necessary since we can choose which ASRC we want to use. That is selected by another register and is implemented by rt5670_sel_asrc_clk_src function. Without this patch, no matter what ASRC is selected, it will track LRCK1. But with this patch, we can use ASRC2 to track LRCK2. It means we can decide which LRCK is tracked by selecting which ASRC we are using with a fixed value of reg-8a.
------Please consider the environment before printing this e-mail.
The patch
ASoC: rt5670: patch reg-0x8a
has been applied to the asoc tree at
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.
Please add any relevant lists and maintainers to the CCs when replying to this mail.
Thanks, Mark
From 874352a763ba2df55093d2651158be40999e9cbe Mon Sep 17 00:00:00 2001
From: Bard Liao bardliao@realtek.com Date: Fri, 17 Jun 2016 12:08:02 +0800 Subject: [PATCH] ASoC: rt5670: patch reg-0x8a
reg-8a assign the tracking source for each ASRC tracker. The default value is 0x0000 which means all ASRC trackers will track LRCK1. But in most case, we wish each ASRC tracker track the corresponding LRCK. i.e. ASRC1 tracks LRCK1, ASRC2 tracks LRCK2 and so on. So, we rewrite reg-8a as 0x0123.
Signed-off-by: Bard Liao bardliao@realtek.com Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/codecs/rt5670.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/sound/soc/codecs/rt5670.c b/sound/soc/codecs/rt5670.c index 0af5ddbef1da..8ef467f64f03 100644 --- a/sound/soc/codecs/rt5670.c +++ b/sound/soc/codecs/rt5670.c @@ -55,6 +55,7 @@ static const struct reg_sequence init_list[] = { { RT5670_PR_BASE + 0x14, 0x9a8a }, { RT5670_PR_BASE + 0x38, 0x3ba1 }, { RT5670_PR_BASE + 0x3d, 0x3640 }, + { 0x8a, 0x0123 }, };
static const struct reg_default rt5670_reg[] = { @@ -131,7 +132,7 @@ static const struct reg_default rt5670_reg[] = { { 0x87, 0x0000 }, { 0x88, 0x0000 }, { 0x89, 0x0000 }, - { 0x8a, 0x0000 }, + { 0x8a, 0x0123 }, { 0x8b, 0x0000 }, { 0x8c, 0x0003 }, { 0x8d, 0x0000 },
participants (2)
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Bard Liao -
Mark Brown