it's better to wait for a couple of
Tested-by from those who use the TDM mode of SSI before applying it.
Although, I'm not the PCM user, I've tested your patch and it works :-)
Tested-by: Łukasz Majewski
Test HW: imx6q + tfa9879 codec
Thanks
Nicolin
--
Best regards,
Hi Nicolin,
On Wed, Sep 06, 2017 at 08:35:50PM +0200, Łukasz Majewski wrote:
clocks = <&clks IMX6QDL_CLK_SSI2_IPG>,
<&clks IMX6QDL_CLK_SSI2>;
clock-names = "ipg", "baud";
dailink_master: cpu
On 09/06/2017 09:47 PM, Nicolin Chen wrote:
On Wed, Sep 06, 2017 at 08:35:50PM +0200, Łukasz Majewski wrote:
clocks = <&clks IMX6QDL_CLK_SSI2_IPG>,
<&clks IMX6QDL_CLK_SSI2>;
clock-names = "ipg", "baud";
Hi Nicolin,
On Wed, Sep 06, 2017 at 11:22:48AM +0200, Łukasz Majewski wrote:
Here is the routine that I understood from the code:
1) asoc_simple_card_parse_clk_cpu(dev, cpu, dai_link, cpu_dai);
=> asoc_simple_card_parse_clk(dev, cpu,// cpu node in sound{}
Hi Nicolin,
On Tue, Sep 05, 2017 at 11:13:40PM +0200, Łukasz Majewski wrote:
They key point here is the asoc_simple_card_parse_clk() function
from simple-card-utils.c
Please look how the clock is assigned; It first checks for cpu
clock, then for "system-clock-frequency" DT
Hi Fabio,
On Tue, Sep 5, 2017 at 6:13 PM, Łukasz Majewski wrote:
&i2c1 {
clock-frequency = <40>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c1>;
status = "okay";
codec: tfa9879@6C
Hi Fabio,
Hi Lukasz,
On Tue, Sep 5, 2017 at 5:35 AM, Łukasz Majewski wrote:
Note:
[*] - I could workaround this problem by setting:
system-clock-frequency = <0> in
dailink_master: cpu {
sound-dai =
Hi Nicolin,
On Tue, Sep 05, 2017 at 10:35:34AM +0200, Łukasz Majewski wrote:
And apparently, we shouldn't set bitclk to 66MHz either. Can
you help to find where this 66MHz comes from?
2. int asoc_simple_card_init_dai() @ simple-card-utils.c
Oh, I just searched in the simple-card.
On 09/05/2017 07:20 AM, Nicolin Chen wrote:
On Sun, Sep 03, 2017 at 04:40:21PM +0200, Łukasz Majewski wrote:
/*
* Hardware limitation: The bclk rate must be
* never greater than 1/5 IPG clock rate
*/
if (freq * 5 > clk_get_rate(ssi_private->clk)) {
dev_err(cpu_dai->dev, "bitcl
On 09/05/2017 09:52 AM, Nicolin Chen wrote:
On Tue, Sep 05, 2017 at 09:37:43AM +0200, Łukasz Majewski wrote:
The last call is changing the bit clock (BCLK) frequency to SSI's IP
block clock (ipg = 66 MHz) [1].
I think a bigger question here is why the routine sets BCLK to 66MHz.
On 09/05/2017 07:06 AM, Nicolin Chen wrote:
On Sun, Sep 03, 2017 at 01:05:01PM +0200, Lukasz Majewski wrote:
The problem is visible in the following setup (on the imx6q):
"simple-audio-card" -> ssi2 -> I2S + I2C -> codec
The function call log (simple-card probe -> CONFIG_SND_SIMPLE_CARD):
asoc
Hi Fabio,
[Sorry for the top-posting]
The driver currently has:
/*
* Hardware limitation: The bclk rate must be
* never greater than 1/5 IPG clock rate
*/
if (freq * 5 > clk_get_rate(ssi_private->clk)) {
dev_err(cpu_dai->dev, "bitclk > ipgclk/5\n");
return -EINVAL;
}
Unfortunately not.
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