* [PATCH 2/2] ASoC: rockchip: i2s: set TDL and RDL to 16 bits [not found] <1419325709-15374-1-git-send-email-jay.xu@rock-chips.com> @ 2014-12-23 9:08 ` Jianqun Xu 2014-12-23 23:06 ` [alsa-devel] " Dylan Reid 2014-12-24 9:36 ` [PATCH v2 0/3] ASoC: rockchip: i2s: fix watermark to 16 and maxburst to 4 Jianqun Xu 1 sibling, 1 reply; 6+ messages in thread From: Jianqun Xu @ 2014-12-23 9:08 UTC (permalink / raw) To: linux-arm-kernel Set Transmit Data Level(TDL) and Receive Data Level(RDL) to 16 bits. Without this setting, the TDL is default to be 0x00 (means 1 bit), and the RDL is default to be 0x1f (means 16 bits). This patch is helpful to fix pop sound, tested on rk3288 board. Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com> --- sound/soc/rockchip/rockchip_i2s.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c index c74ba37..1cd7efc 100644 --- a/sound/soc/rockchip/rockchip_i2s.c +++ b/sound/soc/rockchip/rockchip_i2s.c @@ -247,6 +247,10 @@ static int rockchip_i2s_hw_params(struct snd_pcm_substream *substream, regmap_update_bits(i2s->regmap, I2S_TXCR, I2S_TXCR_VDW_MASK, val); regmap_update_bits(i2s->regmap, I2S_RXCR, I2S_RXCR_VDW_MASK, val); + regmap_update_bits(i2s->regmap, I2S_DMACR, I2S_DMACR_TDL_MASK, + I2S_DMACR_TDL(16)); + regmap_update_bits(i2s->regmap, I2S_DMACR, I2S_DMACR_RDL_MASK, + I2S_DMACR_RDL(16)); return 0; } -- 1.9.1 ^ permalink raw reply related [flat|nested] 6+ messages in thread
* [alsa-devel] [PATCH 2/2] ASoC: rockchip: i2s: set TDL and RDL to 16 bits 2014-12-23 9:08 ` [PATCH 2/2] ASoC: rockchip: i2s: set TDL and RDL to 16 bits Jianqun Xu @ 2014-12-23 23:06 ` Dylan Reid 2014-12-24 0:36 ` Jianqun 0 siblings, 1 reply; 6+ messages in thread From: Dylan Reid @ 2014-12-23 23:06 UTC (permalink / raw) To: linux-arm-kernel On Tue, Dec 23, 2014 at 1:08 AM, Jianqun Xu <jay.xu@rock-chips.com> wrote: > Set Transmit Data Level(TDL) and Receive Data Level(RDL) to 16 bits. > Without this setting, the TDL is default to be 0x00 (means 1 bit), > and the RDL is default to be 0x1f (means 16 bits). My impression from the TRM was that TDL and RDL were measured in samples. Are you sure it's 'bits'? > > This patch is helpful to fix pop sound, tested on rk3288 board. > > Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com> > --- > sound/soc/rockchip/rockchip_i2s.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c > index c74ba37..1cd7efc 100644 > --- a/sound/soc/rockchip/rockchip_i2s.c > +++ b/sound/soc/rockchip/rockchip_i2s.c > @@ -247,6 +247,10 @@ static int rockchip_i2s_hw_params(struct snd_pcm_substream *substream, > > regmap_update_bits(i2s->regmap, I2S_TXCR, I2S_TXCR_VDW_MASK, val); > regmap_update_bits(i2s->regmap, I2S_RXCR, I2S_RXCR_VDW_MASK, val); > + regmap_update_bits(i2s->regmap, I2S_DMACR, I2S_DMACR_TDL_MASK, > + I2S_DMACR_TDL(16)); > + regmap_update_bits(i2s->regmap, I2S_DMACR, I2S_DMACR_RDL_MASK, > + I2S_DMACR_RDL(16)); > > return 0; > } > -- > 1.9.1 > > > _______________________________________________ > Alsa-devel mailing list > Alsa-devel at alsa-project.org > http://mailman.alsa-project.org/mailman/listinfo/alsa-devel ^ permalink raw reply [flat|nested] 6+ messages in thread
* [alsa-devel] [PATCH 2/2] ASoC: rockchip: i2s: set TDL and RDL to 16 bits 2014-12-23 23:06 ` [alsa-devel] " Dylan Reid @ 2014-12-24 0:36 ` Jianqun 0 siblings, 0 replies; 6+ messages in thread From: Jianqun @ 2014-12-24 0:36 UTC (permalink / raw) To: linux-arm-kernel ? 12/24/2014 07:06 AM, Dylan Reid ??: > On Tue, Dec 23, 2014 at 1:08 AM, Jianqun Xu <jay.xu@rock-chips.com> wrote: >> Set Transmit Data Level(TDL) and Receive Data Level(RDL) to 16 bits. >> Without this setting, the TDL is default to be 0x00 (means 1 bit), >> and the RDL is default to be 0x1f (means 16 bits). > > My impression from the TRM was that TDL and RDL were measured in > samples. Are you sure it's 'bits'? You are right, I'll modify the commit message next version, thank you > >> >> This patch is helpful to fix pop sound, tested on rk3288 board. >> >> Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com> >> --- >> sound/soc/rockchip/rockchip_i2s.c | 4 ++++ >> 1 file changed, 4 insertions(+) >> >> diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c >> index c74ba37..1cd7efc 100644 >> --- a/sound/soc/rockchip/rockchip_i2s.c >> +++ b/sound/soc/rockchip/rockchip_i2s.c >> @@ -247,6 +247,10 @@ static int rockchip_i2s_hw_params(struct snd_pcm_substream *substream, >> >> regmap_update_bits(i2s->regmap, I2S_TXCR, I2S_TXCR_VDW_MASK, val); >> regmap_update_bits(i2s->regmap, I2S_RXCR, I2S_RXCR_VDW_MASK, val); >> + regmap_update_bits(i2s->regmap, I2S_DMACR, I2S_DMACR_TDL_MASK, >> + I2S_DMACR_TDL(16)); >> + regmap_update_bits(i2s->regmap, I2S_DMACR, I2S_DMACR_RDL_MASK, >> + I2S_DMACR_RDL(16)); >> >> return 0; >> } >> -- >> 1.9.1 >> >> >> _______________________________________________ >> Alsa-devel mailing list >> Alsa-devel at alsa-project.org >> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel > > > -- Jianqun Xu **************************************************************************** *IMPORTANT NOTICE:*This email is from Fuzhou Rockchip Electronics Co., Ltd .The contents of this email and any attachments may contain information that is privileged, confidential and/or exempt from disclosure under applicable law and relevant NDA. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution, or use of the information is STRICTLY PROHIBITED. Please immediately contact the sender as soon as possible and destroy the material in its entirety in any format. Thank you. **************************************************************************** ^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH v2 0/3] ASoC: rockchip: i2s: fix watermark to 16 and maxburst to 4 [not found] <1419325709-15374-1-git-send-email-jay.xu@rock-chips.com> 2014-12-23 9:08 ` [PATCH 2/2] ASoC: rockchip: i2s: set TDL and RDL to 16 bits Jianqun Xu @ 2014-12-24 9:36 ` Jianqun Xu 2014-12-24 9:37 ` [PATCH v2 3/3] ASoC: rockchip: i2s: fix maxburst of dma data " Jianqun Xu 2014-12-24 12:43 ` [PATCH v2 0/3] ASoC: rockchip: i2s: fix watermark to 16 and maxburst " Mark Brown 1 sibling, 2 replies; 6+ messages in thread From: Jianqun Xu @ 2014-12-24 9:36 UTC (permalink / raw) To: linux-arm-kernel To make Bus DMA works more efficiency, DMA may work in burst mode, we set the watermark of transmit and receive reach to 16 bits. Jianqun Xu (3): ASoC: rockchip: i2s: fix error defination of transmit data level ASoC: rockchip: i2s: set TDL and RDL to 16 samples ASoC: rockchip: i2s: fix maxburst of dma data to 4 sound/soc/rockchip/rockchip_i2s.c | 8 ++++++-- sound/soc/rockchip/rockchip_i2s.h | 2 +- 2 files changed, 7 insertions(+), 3 deletions(-) -- changes since v1: - modify commit message suggested by dgreid - add patch to fix maxburst 1.9.1 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH v2 3/3] ASoC: rockchip: i2s: fix maxburst of dma data to 4 2014-12-24 9:36 ` [PATCH v2 0/3] ASoC: rockchip: i2s: fix watermark to 16 and maxburst to 4 Jianqun Xu @ 2014-12-24 9:37 ` Jianqun Xu 2014-12-24 12:43 ` [PATCH v2 0/3] ASoC: rockchip: i2s: fix watermark to 16 and maxburst " Mark Brown 1 sibling, 0 replies; 6+ messages in thread From: Jianqun Xu @ 2014-12-24 9:37 UTC (permalink / raw) To: linux-arm-kernel Since RK3288 DMAC's burst length only support max to 4, here set maxburst of playback and capture dma data to 4. Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com> --- changes since v1: - new patch since v1 sound/soc/rockchip/rockchip_i2s.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c index 1cd7efc..59aeec4 100644 --- a/sound/soc/rockchip/rockchip_i2s.c +++ b/sound/soc/rockchip/rockchip_i2s.c @@ -458,11 +458,11 @@ static int rockchip_i2s_probe(struct platform_device *pdev) i2s->playback_dma_data.addr = res->start + I2S_TXDR; i2s->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; - i2s->playback_dma_data.maxburst = 16; + i2s->playback_dma_data.maxburst = 4; i2s->capture_dma_data.addr = res->start + I2S_RXDR; i2s->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; - i2s->capture_dma_data.maxburst = 16; + i2s->capture_dma_data.maxburst = 4; i2s->dev = &pdev->dev; dev_set_drvdata(&pdev->dev, i2s); -- 1.9.1 ^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH v2 0/3] ASoC: rockchip: i2s: fix watermark to 16 and maxburst to 4 2014-12-24 9:36 ` [PATCH v2 0/3] ASoC: rockchip: i2s: fix watermark to 16 and maxburst to 4 Jianqun Xu 2014-12-24 9:37 ` [PATCH v2 3/3] ASoC: rockchip: i2s: fix maxburst of dma data " Jianqun Xu @ 2014-12-24 12:43 ` Mark Brown 1 sibling, 0 replies; 6+ messages in thread From: Mark Brown @ 2014-12-24 12:43 UTC (permalink / raw) To: linux-arm-kernel On Wed, Dec 24, 2014 at 05:36:59PM +0800, Jianqun Xu wrote: > To make Bus DMA works more efficiency, DMA may work in burst mode, > we set the watermark of transmit and receive reach to 16 bits. Applied all, thanks. -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 473 bytes Desc: Digital signature URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20141224/52df34b9/attachment.sig> ^ permalink raw reply [flat|nested] 6+ messages in thread
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[not found] <1419325709-15374-1-git-send-email-jay.xu@rock-chips.com>
2014-12-23 9:08 ` [PATCH 2/2] ASoC: rockchip: i2s: set TDL and RDL to 16 bits Jianqun Xu
2014-12-23 23:06 ` [alsa-devel] " Dylan Reid
2014-12-24 0:36 ` Jianqun
2014-12-24 9:36 ` [PATCH v2 0/3] ASoC: rockchip: i2s: fix watermark to 16 and maxburst to 4 Jianqun Xu
2014-12-24 9:37 ` [PATCH v2 3/3] ASoC: rockchip: i2s: fix maxburst of dma data " Jianqun Xu
2014-12-24 12:43 ` [PATCH v2 0/3] ASoC: rockchip: i2s: fix watermark to 16 and maxburst " Mark Brown
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