C++ (Cpp) pfuze_reg_rmw Examples

Example #1

File: mx6q_sabresd_pmic_pfuze100.c Project: panfudonmx6q/imx6q_fsl

static int pfuze100_init(struct mc_pfuze *pfuze)
{
	int ret;
	unsigned int reg;
	if (arm_max_freq == CPU_AT_1_2GHz) {
		/*VDDARM_IN 1.475V*/
		ret = pfuze_reg_rmw(pfuze, PFUZE100_SW1AVOL,
					PFUZE100_SW1AVOL_VSEL_M,
					0x2f);
		if (ret)
			goto err;
		/*VDDSOC_IN 1.475V*/
		ret = pfuze_reg_rmw(pfuze, PFUZE100_SW1CVOL,
					PFUZE100_SW1CVOL_VSEL_M,
					0x2f);
		if (ret)
			goto err;
		/*set VDDSOC&VDDPU to 1.25V*/
		reg = __raw_readl(ANADIG_REG_CORE);
		reg &= ~BM_ANADIG_REG_CORE_REG2_TRG;
		reg |= BF_ANADIG_REG_CORE_REG2_TRG(0x16);
		reg &= ~BM_ANADIG_REG_CORE_REG1_TRG;
		reg |= BF_ANADIG_REG_CORE_REG1_TRG(0x16);
		__raw_writel(reg, ANADIG_REG_CORE);

	}
	ret = pfuze_reg_rmw(pfuze, PFUZE100_SW1ASTANDBY,
			    PFUZE100_SW1ASTANDBY_STBY_M,
			    PFUZE100_SW1ASTANDBY_STBY_VAL);
	if (ret)
		goto err;
	ret = pfuze_reg_rmw(pfuze, PFUZE100_SW1CSTANDBY,
			    PFUZE100_SW1CSTANDBY_STBY_M,
			    PFUZE100_SW1CSTANDBY_STBY_VAL);
	if (ret)
		goto err;
	/*set SW1AB/1C DVSPEED as 25mV step each 4us,quick than 16us before.*/
	ret = pfuze_reg_rmw(pfuze, PFUZE100_SW1ACON,
			    PFUZE100_SW1ACON_SPEED_M,
			    PFUZE100_SW1ACON_SPEED_VAL);
	if (ret)
		goto err;
	ret = pfuze_reg_rmw(pfuze, PFUZE100_SW1CCON,
			    PFUZE100_SW1CCON_SPEED_M,
			    PFUZE100_SW1CCON_SPEED_VAL);
	if (ret)
		goto err;
	return 0;
err:
	printk(KERN_ERR "pfuze100 init error!\n");
	return -1;
}

Example #2

File: mx6q_sabresd_pmic_pfuze100.c Project: AvalueAES/rev-sa01

static int pfuze100_init(struct mc_pfuze *pfuze)
{
	int ret, i;
	unsigned char value;
	/*use default mode(ldo bypass) if no param from cmdline*/
	if (enable_ldo_mode == LDO_MODE_DEFAULT)
		enable_ldo_mode = LDO_MODE_BYPASSED;
	/*read Device ID*/
	ret = pfuze_reg_read(pfuze, PFUZE100_DEVICEID, &value);
	if (ret)
		goto err;
	if (value != 0x10) {
		printk(KERN_ERR "wrong device id:%x!\n", value);
		goto err;
	}

	/*read Revision ID*/
	ret = pfuze_reg_read(pfuze, PFUZE100_REVID, &value);
	if (ret)
		goto err;
	if (value == 0x10) {
		printk(KERN_WARNING "PF100 1.0 chip found!\n");
	/* workaround ER1 of pfuze1.0: set all buck regulators in PWM mode
	* except SW1C(APS) in normal and  PFM mode in standby.
	*/
		for (i = 0; i < 7; i++) {
			if (i == 2)/*SW1C*/
				value = 0xc;/*normal:APS mode;standby:PFM mode*/
			else
				value = 0xd;/*normal:PWM mode;standby:PFM mode*/
			ret = pfuze_reg_write(pfuze,
					PFUZE100_SW1AMODE + (i * 7),
					value);
			if (ret)
				goto err;
		}

	} else {
	/*set all switches APS in normal and PFM mode in standby*/
		for (i = 0; i < 7; i++) {
			value = 0xc;
			ret = pfuze_reg_write(pfuze,
					PFUZE100_SW1AMODE + (i * 7),
					value);
			if (ret)
				goto err;
		}

	}
	/*use ldo active mode if use 1.2GHz,otherwise use ldo bypass mode*/
	if (arm_max_freq == CPU_AT_1_2GHz) {
			/*VDDARM_IN 1.425*/
		ret = pfuze_reg_rmw(pfuze, PFUZE100_SW1AVOL,
					PFUZE100_SW1AVOL_VSEL_M,
					0x2d);
		if (ret)
			goto err;
		/*VDDSOC_IN 1.425V*/
		ret = pfuze_reg_rmw(pfuze, PFUZE100_SW1CVOL,
					PFUZE100_SW1CVOL_VSEL_M,
					0x2d);
		if (ret)
			goto err;
		enable_ldo_mode = LDO_MODE_ENABLED;
	} else if (enable_ldo_mode == LDO_MODE_BYPASSED) {
		/*decrease VDDARM_IN/VDDSOC_IN,since we will use ldo bypass mode*/
		/*VDDARM_IN 1.3V*/
		ret = pfuze_reg_rmw(pfuze, PFUZE100_SW1AVOL,
					PFUZE100_SW1AVOL_VSEL_M,
					0x28);
		if (ret)
			goto err;
		/*VDDSOC_IN 1.3V*/
		ret = pfuze_reg_rmw(pfuze, PFUZE100_SW1CVOL,
					PFUZE100_SW1CVOL_VSEL_M,
					0x28);
		if (ret)
			goto err;
		/*set SW1AB/1C DVSPEED as 25mV step each 4us,quick than 16us before.*/
		ret = pfuze_reg_rmw(pfuze, PFUZE100_SW1ACON,
				    PFUZE100_SW1ACON_SPEED_M,
				    PFUZE100_SW1ACON_SPEED_VAL);
		if (ret)
			goto err;
		ret = pfuze_reg_rmw(pfuze, PFUZE100_SW1CCON,
				    PFUZE100_SW1CCON_SPEED_M,
				    PFUZE100_SW1CCON_SPEED_VAL);
		if (ret)
			goto err;
	} else if (enable_ldo_mode != LDO_MODE_BYPASSED) {
		/*Increase VDDARM_IN/VDDSOC_IN to 1.375V in ldo active mode*/
		ret = pfuze_reg_rmw(pfuze, PFUZE100_SW1AVOL,
					PFUZE100_SW1AVOL_VSEL_M,
					0x2b);
		if (ret)
			goto err;
		ret = pfuze_reg_rmw(pfuze, PFUZE100_SW1CVOL,
					PFUZE100_SW1CVOL_VSEL_M,
					0x2b);
		if (ret)
			goto err;
	}
	return 0;
err:
	printk(KERN_ERR "pfuze100 init error!\n");
	return -1;
}