Commit 8e6de4a3 authored by Balaji T K's avatar Balaji T K Committed by Samuel Ortiz
Browse files

regulator: twl: add clk32kg to twl-regulator 



In OMAP4 Blaze and Panda, 32KHz clock to WLAN is supplied from Phoenix
TWL6030. The 32KHz clock state (ON/OFF) is configured in
CLK32KG_CFG_[GRP, TRANS, STATE] register. This follows the same register
programming model as other regulators in TWL6030. So add CLK32KG as pseudo
regulator.

Signed-off-by: default avatarBalaji T K <balajitk@ti.com>
Acked-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
parent dae2db30

drivers/mfd/twl-core.c

+4 −0
Original line number Diff line number Diff line
@@ -864,6 +864,10 @@ add_children(struct twl4030_platform_data *pdata, unsigned long features) 
		child = add_regulator(TWL6030_REG_VAUX3_6030, pdata->vaux3);

		if (IS_ERR(child))

			return PTR_ERR(child);



		child = add_regulator(TWL6030_REG_CLK32KG, pdata->clk32kg);

		if (IS_ERR(child))

			return PTR_ERR(child);

	}



	if (twl_has_bci() && pdata->bci &&

drivers/regulator/twl-regulator.c

+23 −1
Original line number Diff line number Diff line
@@ -475,6 +475,13 @@ static struct regulator_ops twlfixed_ops = { 
	.get_status	= twlreg_get_status,

};



static struct regulator_ops twl6030_fixed_resource = {

	.enable		= twlreg_enable,

	.disable	= twlreg_disable,

	.is_enabled	= twlreg_is_enabled,

	.get_status	= twlreg_get_status,

};



/*----------------------------------------------------------------------*/



#define TWL4030_FIXED_LDO(label, offset, mVolts, num, turnon_delay, \
@@ -538,6 +545,20 @@ static struct regulator_ops twlfixed_ops = { 
		}, \

	}



#define TWL6030_FIXED_RESOURCE(label, offset, num, turnon_delay, remap_conf) { \

	.base = offset, \

	.id = num, \

	.delay = turnon_delay, \

	.remap = remap_conf, \

	.desc = { \

		.name = #label, \

		.id = TWL6030_REG_##label, \

		.ops = &twl6030_fixed_resource, \

		.type = REGULATOR_VOLTAGE, \

		.owner = THIS_MODULE, \

		}, \

	}



/*

 * We list regulators here if systems need some level of

 * software control over them after boot.
@@ -577,7 +598,8 @@ static struct twlreg_info twl_regs[] = { 
	TWL6030_FIXED_LDO(VANA, 0x50, 2100, 15, 0, 0x21),

	TWL6030_FIXED_LDO(VCXIO, 0x60, 1800, 16, 0, 0x21),

	TWL6030_FIXED_LDO(VDAC, 0x64, 1800, 17, 0, 0x21),

	TWL6030_FIXED_LDO(VUSB, 0x70, 3300, 18, 0, 0x21)

	TWL6030_FIXED_LDO(VUSB, 0x70, 3300, 18, 0, 0x21),

	TWL6030_FIXED_RESOURCE(CLK32KG, 0x8C, 48, 0, 0x21),

};



static int __devinit twlreg_probe(struct platform_device *pdev)

include/linux/i2c/twl.h

+2 −0
Original line number Diff line number Diff line
@@ -698,6 +698,7 @@ struct twl4030_platform_data { 
	struct regulator_init_data              *vana;

	struct regulator_init_data              *vcxio;

	struct regulator_init_data              *vusb;

	struct regulator_init_data		*clk32kg;

};



/*----------------------------------------------------------------------*/
@@ -777,5 +778,6 @@ static inline int twl4030charger_usb_en(int enable) { return 0; } 


/* INTERNAL LDOs */

#define TWL6030_REG_VRTC	47

#define TWL6030_REG_CLK32KG	48



#endif /* End of __TWL4030_H */

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