Commit dcc88a17 authored by Mark Brown's avatar Mark Brown Committed by Russell King
Browse files

[ARM] 4830/1: Add support for the CLK_POUT pin on PXA3xx CPUs 



Expose control of the PXA3xx 13MHz CLK_POUT pin via the clock API

Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 184dd481

arch/arm/mach-pxa/pxa3xx.c

+22 −0
Original line number Diff line number Diff line
@@ -156,6 +156,21 @@ static const struct clkops clk_pxa3xx_hsio_ops = { 
	.getrate	= clk_pxa3xx_hsio_getrate,

};



static void clk_pout_enable(struct clk *clk)

{

	OSCC |= OSCC_PEN;

}



static void clk_pout_disable(struct clk *clk)

{

	OSCC &= ~OSCC_PEN;

}



static const struct clkops clk_pout_ops = {

	.enable		= clk_pout_enable,

	.disable	= clk_pout_disable,

};



#define PXA3xx_CKEN(_name, _cken, _rate, _delay, _dev)	\

	{						\

		.name	= _name,			\
@@ -175,6 +190,13 @@ static const struct clkops clk_pxa3xx_hsio_ops = { 
	}



static struct clk pxa3xx_clks[] = {

	{

		.name           = "CLK_POUT",

		.ops            = &clk_pout_ops,

		.rate           = 13000000,

		.delay          = 70,

	},



	PXA3xx_CK("LCDCLK", LCD,    &clk_pxa3xx_hsio_ops, &pxa_device_fb.dev),

	PXA3xx_CK("CAMCLK", CAMERA, &clk_pxa3xx_hsio_ops, NULL),

include/asm-arm/arch-pxa/pxa3xx-regs.h

+9 −0
Original line number Diff line number Diff line
@@ -12,6 +12,15 @@ 


#ifndef __ASM_ARCH_PXA3XX_REGS_H

#define __ASM_ARCH_PXA3XX_REGS_H



/*

 * Oscillator Configuration Register (OSCC)

 */

#define OSCC           __REG(0x41350000)  /* Oscillator Configuration Register */



#define OSCC_PEN       (1 << 11)       /* 13MHz POUT */





/*

 * Service Power Management Unit (MPMU)

 */