[RFC] ARM: imx6q-sabrelite: Add CLKO IOMUX

From: Fabio Estevam <redacted>

In order to have audio functional on mx6qsabrelite, it is necessary to setup
the IOMUX for MX6Q_PAD_GPIO_0__CCM_CLKO and MX6Q_PAD_GPIO_3__CCM_CLKO2 pins.

Signed-off-by: Fabio Estevam <redacted>
---
Dirk,

Not tested. If you have a chance to try it, please let me know.

 arch/arm/boot/dts/imx6q-sabrelite.dts |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boot/dts/imx6q-sabrelite.dts b/arch/arm/boot/dts/imx6q-sabrelite.dts
index d42e851..f22c089 100644
--- a/arch/arm/boot/dts/imx6q-sabrelite.dts
+++ b/arch/arm/boot/dts/imx6q-sabrelite.dts

@@ -53,6 +53,8 @@
 						fsl,pins = <
 							   144  0x80000000	/* MX6Q_PAD_EIM_D22__GPIO_3_22 */
 							   121  0x80000000	/* MX6Q_PAD_EIM_D19__GPIO_3_19 */
+							   953  0x00000000	/* MX6Q_PAD_GPIO_0__CCM_CLKO */
+							   979  0x00000004	/* MX6Q_PAD_GPIO_3__CCM_CLKO2 */
 							   >;
 					};
 				};

-- 
1.7.1

On Wed, Aug 1, 2012 at 12:10 PM, Fabio Estevam [off-list ref] wrote:

From: Fabio Estevam <redacted>

In order to have audio functional on mx6qsabrelite, it is necessary to setup
the IOMUX for MX6Q_PAD_GPIO_0__CCM_CLKO and MX6Q_PAD_GPIO_3__CCM_CLKO2 pins.

Signed-off-by: Fabio Estevam <redacted>
---
Dirk,

Not tested. If you have a chance to try it, please let me know.

I managed to get a board and tried it with current Linus' tree and
also linux-next. Both result in:

sgtl5000 0-000a: Device with ID register ffff is not a sgtl5000
sgtl5000 0-000a: asoc: failed to probe CODEC sgtl5000.0-000a: -19
asoc: failed to instantiate card imx6q-sabrelite-sgtl5000: -19
imx-sgtl5000 sound.11: snd_soc_register_card failed (-19)

Any ideas?

Thanks,

Fabio Estevam

On 8/1/2012 1:17 PM, Fabio Estevam wrote:

On Wed, Aug 1, 2012 at 12:10 PM, Fabio Estevam [off-list ref] wrote:

quoted

From: Fabio Estevam <redacted>

In order to have audio functional on mx6qsabrelite, it is necessary to setup
the IOMUX for MX6Q_PAD_GPIO_0__CCM_CLKO and MX6Q_PAD_GPIO_3__CCM_CLKO2 pins.

Signed-off-by: Fabio Estevam <redacted>
---
Dirk,

Not tested. If you have a chance to try it, please let me know.

I managed to get a board and tried it with current Linus' tree and
also linux-next. Both result in:

sgtl5000 0-000a: Device with ID register ffff is not a sgtl5000
sgtl5000 0-000a: asoc: failed to probe CODEC sgtl5000.0-000a: -19
asoc: failed to instantiate card imx6q-sabrelite-sgtl5000: -19
imx-sgtl5000 sound.11: snd_soc_register_card failed (-19)

Any ideas?

Thanks,

Fabio Estevam

No idea, but a comment.

GPIO_0 is needed for SGTL500 - sys_mclk
GPIO_3 is needed for Camera mclk, no audio dependency.

Troy

On Wed, Aug 1, 2012 at 5:17 PM, Fabio Estevam [off-list ref] wrote:

I managed to get a board and tried it with current Linus' tree and
also linux-next. Both result in:

sgtl5000 0-000a: Device with ID register ffff is not a sgtl5000
sgtl5000 0-000a: asoc: failed to probe CODEC sgtl5000.0-000a: -19
asoc: failed to instantiate card imx6q-sabrelite-sgtl5000: -19
imx-sgtl5000 sound.11: snd_soc_register_card failed (-19)

Any ideas?

Ok, I sent a new patch that fixes this problem.

Also, I learned from Richard Zhao that audio can only be probed
correctly if we power off/on the board. Pressing the reset button
makes the audio probe to fail.