i.MX ProcessorsのトピックRe: Controlling PFUZE100 VGEN in Linux

Controlling PFUZE100 VGEN in Linux

erezsteinberg — Tue, 18 Nov 2014 20:29:23 GMT

Hello experts,

I have some components that are powered by the VGEN LDOs in PFUZE0100

Currently I enable them in U-Boot, but I need to have control over them during runtime in Linux.

I tried regulator_get("vgen1") or regulator_get("PFUZE100_VGEN1"), but both fail.

How can I get control these?

Regards,

Erez

Re: Controlling PFUZE100 VGEN in Linux

igorpadykov — Wed, 19 Nov 2014 09:44:29 GMT

Hi Erez

I think you can look at cpu_vdd3p0 example :

arch/arm/mach-mx6/mx6_anatop_regulator.c:

/* USB phy 3P0 */

static struct regulator_consumer_supply vdd3p0_consumers[] = {

{

.supply = "cpu_vdd3p0",

};

pm.c pm_init( ) :

vdd3p0_regulator = regulator_get(NULL, "cpu_vdd3p0");

if (IS_ERR(vdd3p0_regulator)) {

	printk(KERN_ERR "%s: failed to get 3p0 regulator Err: %d\n",
					__func__, ret);
	return PTR_ERR(vdd3p0_regulator);

}

ret = regulator_set_voltage(vdd3p0_regulator, VDD3P0_VOLTAGE,

VDD3P0_VOLTAGE);

if (ret) {

	printk(KERN_ERR "%s: failed to set 3p0 regulator voltage Err: %d\n",
					__func__, ret);

}

ret = regulator_enable(vdd3p0_regulator);

if (ret) {

	printk(KERN_ERR "%s: failed to enable 3p0 regulator Err: %d\n",
					__func__, ret);

}

Best regards

igor

Re: Controlling PFUZE100 VGEN in Linux

erezsteinberg — Wed, 19 Nov 2014 09:47:08 GMT

Yes, this is what I'm trying to do --

But.. what is the name for the PFUZE VGEN regulators?

regulator_get(NULL, "?????????");

Re: Controlling PFUZE100 VGEN in Linux

igorpadykov — Wed, 19 Nov 2014 09:52:14 GMT

mx6q_sabresd_pmic_pfuze100.c:

static struct regulator_consumer_supply vgen1_consumers[] = {

{

.supply = "VGEN1_1V5",

}

};

Re: Controlling PFUZE100 VGEN in Linux

erezsteinberg — Wed, 19 Nov 2014 10:10:57 GMT

Thanks --- that worked!