DA9053 support on mx53qsb

DA9053 support on mx53qsb

[Fabio Estevam]

Hi,

I am trying to enable Dialog DA9053 on mx53qsb and did the following:

diff --git a/arch/arm/boot/dts/imx53-qsb.dts b/arch/arm/boot/dts/imx53-qsb.dts
index 5bae4c7..f3c71e5 100644
--- a/arch/arm/boot/dts/imx53-qsb.dts
+++ b/arch/arm/boot/dts/imx53-qsb.dts
@@ -60,6 +60,7 @@
 							697  0x80000000	/* MX53_PAD_EIM_DA12__GPIO3_12 */
 							701  0x80000000	/* MX53_PAD_EIM_DA13__GPIO3_13 */
 							868  0x80000000	/* MX53_PAD_PATA_DA_0__GPIO7_6 */
+							1149 0x80000000 /* MX53_PAD_GPIO_16__GPIO7_11 */
 						>;
 					};

@@ -106,6 +107,8 @@
 				pmic: dialog at 48 {
 					compatible = "dlg,da9053-aa", "dlg,da9052";
 					reg = <0x48>;
+					interrupt-parent = <&gpio7>;
+					interrupts = <11 0x8>; /* low-level active IRQ at GPIO7_11 */

 					regulators {
 						buck0 {
--

and this is what I get:
...

da9052 1-0048: DA9052 ADC IRQ failed ret=-22  ----> fails here
BUCK1: 500 <--> 2075 mV at 1250 mV at 3000 mA
BUCK2: 925 <--> 2075 mV at 1350 mV at 1500 mA
BUCK3: 925 <--> 2500 mV at 1500 mV at 1500 mA
BUCK4: at 2475 mV at 1500 mA
LDO1: at 1300 mV
LDO2: at 1300 mV
LDO3: at 3300 mV
LDO4: 1725 <--> 1800 mV at 2775 mV
LDO5: 1200 <--> 1800 mV at 1300 mV
LDO6: 1750 <--> 3300 mV at 1300 mV
LDO7: 1750 <--> 3300 mV at 2750 mV
LDO8: 1200 <--> 3600 mV at 1800 mV
LDO9: 1250 <--> 3600 mV at 1500 mV
LDO10: 1200 <--> 3600 mV at 1300 mV
....

LDO10: disabling
LDO9: disabling
LDO8: disabling
?????????? (and then hangs here).

Any suggestions as to what I am missing?

Thanks,

Fabio Estevam

DA9053 support on mx53qsb

[Arnd Bergmann]

On Wednesday 26 September 2012 16:59:11 Fabio Estevam wrote:
> 
> da9052 1-0048: DA9052 ADC IRQ failed ret=-22  ----> fails here
> BUCK1: 500 <--> 2075 mV at 1250 mV at 3000 mA
> BUCK2: 925 <--> 2075 mV at 1350 mV at 1500 mA
> BUCK3: 925 <--> 2500 mV at 1500 mV at 1500 mA
> BUCK4: at 2475 mV at 1500 mA
> LDO1: at 1300 mV
> LDO2: at 1300 mV
> LDO3: at 3300 mV
> LDO4: 1725 <--> 1800 mV at 2775 mV
> LDO5: 1200 <--> 1800 mV at 1300 mV
> LDO6: 1750 <--> 3300 mV at 1300 mV
> LDO7: 1750 <--> 3300 mV at 2750 mV
> LDO8: 1200 <--> 3600 mV at 1800 mV
> LDO9: 1250 <--> 3600 mV at 1500 mV
> LDO10: 1200 <--> 3600 mV at 1300 mV
> ....
> 
> LDO10: disabling
> LDO9: disabling
> LDO8: disabling
> ?????????? (and then hangs here).
> 
> Any suggestions as to what I am missing?

Maybe the pmic device gets created from DT before the GPIO controller
registers the IRQ domain.

	Arnd

DA9053 support on mx53qsb

[Marek Vasut]

Dear Arnd Bergmann,

> On Wednesday 26 September 2012 16:59:11 Fabio Estevam wrote:
> > da9052 1-0048: DA9052 ADC IRQ failed ret=-22  ----> fails here
> > BUCK1: 500 <--> 2075 mV at 1250 mV at 3000 mA
> > BUCK2: 925 <--> 2075 mV at 1350 mV at 1500 mA
> > BUCK3: 925 <--> 2500 mV at 1500 mV at 1500 mA
> > BUCK4: at 2475 mV at 1500 mA
> > LDO1: at 1300 mV
> > LDO2: at 1300 mV
> > LDO3: at 3300 mV
> > LDO4: 1725 <--> 1800 mV at 2775 mV
> > LDO5: 1200 <--> 1800 mV at 1300 mV
> > LDO6: 1750 <--> 3300 mV at 1300 mV
> > LDO7: 1750 <--> 3300 mV at 2750 mV
> > LDO8: 1200 <--> 3600 mV at 1800 mV
> > LDO9: 1250 <--> 3600 mV at 1500 mV
> > LDO10: 1200 <--> 3600 mV at 1300 mV
> > ....
> > 
> > LDO10: disabling
> > LDO9: disabling
> > LDO8: disabling
> > ?????????? (and then hangs here).
> > 
> > Any suggestions as to what I am missing?
> 
> Maybe the pmic device gets created from DT before the GPIO controller
> registers the IRQ domain.

And misconfiguring the PMIC kills the CPU, thus the hang.

Best regards,
Marek Vasut

DA9053 support on mx53qsb

[Fabio Estevam]

Hi Arnd,

On Wed, Sep 26, 2012 at 5:04 PM, Arnd Bergmann <arnd@arndb.de> wrote:

> Maybe the pmic device gets created from DT before the GPIO controller
> registers the IRQ domain.

I managed to fix the issue. The problems were:

- Registration of the da9052: https://lkml.org/lkml/2012/9/26/551

- The imx53-qsb.dts was missing to register the IRQ GPIO and was not
keeping the power supplies on. Patch sent to the list.

Regards,

Fabio Estevam