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Commit 2a125dd5 authored by Eric Miao's avatar Eric Miao
Browse files

ARM: pxa: remove get_memclk_frequency_10khz() 



Introduce 'struct clk' for memory and remove
get_memclk_frequency_10khz().

Signed-off-by: default avatarEric Miao <eric.y.miao@gmail.com>
parent 4029813c

arch/arm/mach-pxa/generic.c

+0 −13
Original line number Diff line number Diff line
@@ -71,19 +71,6 @@ unsigned int get_clk_frequency_khz(int info) 
}

EXPORT_SYMBOL(get_clk_frequency_khz);



/*

 * Return the current memory clock frequency in units of 10kHz

 */

unsigned int get_memclk_frequency_10khz(void)

{

	if (cpu_is_pxa25x())

		return pxa25x_get_memclk_frequency_10khz();

	else if (cpu_is_pxa27x())

		return pxa27x_get_memclk_frequency_10khz();

	return 0;

}

EXPORT_SYMBOL(get_memclk_frequency_10khz);



/*

 * Intel PXA2xx internal register mapping.

 *

arch/arm/mach-pxa/generic.h

+0 −4
Original line number Diff line number Diff line
@@ -36,18 +36,14 @@ extern unsigned int get_clk_frequency_khz(int info); 


#ifdef CONFIG_PXA25x

extern unsigned pxa25x_get_clk_frequency_khz(int);

extern unsigned pxa25x_get_memclk_frequency_10khz(void);

#else

#define pxa25x_get_clk_frequency_khz(x)		(0)

#define pxa25x_get_memclk_frequency_10khz()	(0)

#endif



#ifdef CONFIG_PXA27x

extern unsigned pxa27x_get_clk_frequency_khz(int);

extern unsigned pxa27x_get_memclk_frequency_10khz(void);

#else

#define pxa27x_get_clk_frequency_khz(x)		(0)

#define pxa27x_get_memclk_frequency_10khz()	(0)

#endif



#if defined(CONFIG_PXA25x) || defined(CONFIG_PXA27x)

arch/arm/mach-pxa/pxa25x.c

+10 −10
Original line number Diff line number Diff line
@@ -92,23 +92,21 @@ unsigned int pxa25x_get_clk_frequency_khz(int info) 
	return (turbo & 1) ? (N/1000) : (M/1000);

}



/*

 * Return the current memory clock frequency in units of 10kHz

 */

unsigned int pxa25x_get_memclk_frequency_10khz(void)

static unsigned long clk_pxa25x_mem_getrate(struct clk *clk)

{

	return L_clk_mult[(CCCR >> 0) & 0x1f] * BASE_CLK / 10000;

	return L_clk_mult[(CCCR >> 0) & 0x1f] * BASE_CLK;

}



static unsigned long clk_pxa25x_lcd_getrate(struct clk *clk)

{

	return pxa25x_get_memclk_frequency_10khz() * 10000;

}

static const struct clkops clk_pxa25x_mem_ops = {

	.enable		= clk_dummy_enable,

	.disable	= clk_dummy_disable,

	.getrate	= clk_pxa25x_mem_getrate,

};



static const struct clkops clk_pxa25x_lcd_ops = {

	.enable		= clk_pxa2xx_cken_enable,

	.disable	= clk_pxa2xx_cken_disable,

	.getrate	= clk_pxa25x_lcd_getrate,

	.getrate	= clk_pxa25x_mem_getrate,

};



static unsigned long gpio12_config_32k[] = {
@@ -185,6 +183,7 @@ static DEFINE_PXA2_CKEN(pxa25x_ficp, FICP, 47923000, 0); 
static DEFINE_CK(pxa25x_lcd, LCD, &clk_pxa25x_lcd_ops);

static DEFINE_CLK(pxa25x_gpio11, &clk_pxa25x_gpio11_ops, 3686400, 0);

static DEFINE_CLK(pxa25x_gpio12, &clk_pxa25x_gpio12_ops, 32768, 0);

static DEFINE_CLK(pxa25x_mem, &clk_pxa25x_mem_ops, 0, 0);



static struct clk_lookup pxa25x_clkregs[] = {

	INIT_CLKREG(&clk_pxa25x_lcd, "pxa2xx-fb", NULL),
@@ -205,6 +204,7 @@ static struct clk_lookup pxa25x_clkregs[] = { 
	INIT_CLKREG(&clk_pxa25x_ac97, NULL, "AC97CLK"),

	INIT_CLKREG(&clk_pxa25x_gpio11, NULL, "GPIO11_CLK"),

	INIT_CLKREG(&clk_pxa25x_gpio12, NULL, "GPIO12_CLK"),

	INIT_CLKREG(&clk_pxa25x_mem, "pxa2xx-pcmcia", NULL),

};



static struct clk_lookup pxa25x_hwuart_clkreg =

arch/arm/mach-pxa/pxa27x.c

+11 −4
Original line number Diff line number Diff line
@@ -111,10 +111,9 @@ unsigned int pxa27x_get_clk_frequency_khz(int info) 
}



/*

 * Return the current mem clock frequency in units of 10kHz as

 * reflected by CCCR[A], B, and L

 * Return the current mem clock frequency as reflected by CCCR[A], B, and L

 */

unsigned int pxa27x_get_memclk_frequency_10khz(void)

static unsigned long clk_pxa27x_mem_getrate(struct clk *clk)

{

	unsigned long ccsr, clkcfg;

	unsigned int l, L, m, M;
@@ -133,9 +132,15 @@ unsigned int pxa27x_get_memclk_frequency_10khz(void) 
	L = l * BASE_CLK;

	M = (!cccr_a) ? (L/m) : ((b) ? L : (L/2));



	return (M / 10000);

	return M;

}



static const struct clkops clk_pxa27x_mem_ops = {

	.enable		= clk_dummy_enable,

	.disable	= clk_dummy_disable,

	.getrate	= clk_pxa27x_mem_getrate,

};



/*

 * Return the current LCD clock frequency in units of 10kHz as

 */
@@ -192,6 +197,7 @@ static DEFINE_PXA2_CKEN(pxa27x_memc, MEMC, 0, 0); 


static DEFINE_CK(pxa27x_lcd, LCD, &clk_pxa27x_lcd_ops);

static DEFINE_CK(pxa27x_camera, CAMERA, &clk_pxa27x_lcd_ops);

static DEFINE_CLK(pxa27x_mem, &clk_pxa27x_mem_ops, 0, 0);



static struct clk_lookup pxa27x_clkregs[] = {

	INIT_CLKREG(&clk_pxa27x_lcd, "pxa2xx-fb", NULL),
@@ -220,6 +226,7 @@ static struct clk_lookup pxa27x_clkregs[] = { 
	INIT_CLKREG(&clk_pxa27x_memstk, NULL, "MSTKCLK"),

	INIT_CLKREG(&clk_pxa27x_im, NULL, "IMCLK"),

	INIT_CLKREG(&clk_pxa27x_memc, NULL, "MEMCLK"),

	INIT_CLKREG(&clk_pxa27x_mem, "pxa2xx-pcmcia", NULL),

};



#ifdef CONFIG_PM

drivers/pcmcia/pxa2xx_base.c

+14 −3
Original line number Diff line number Diff line
@@ -179,8 +179,8 @@ static int pxa2xx_pcmcia_set_mcxx(struct soc_pcmcia_socket *skt, unsigned int cl 


static int pxa2xx_pcmcia_set_timing(struct soc_pcmcia_socket *skt)

{

	unsigned int clk = get_memclk_frequency_10khz();

	return pxa2xx_pcmcia_set_mcxx(skt, clk);

	unsigned long clk = clk_get_rate(skt->clk);

	return pxa2xx_pcmcia_set_mcxx(skt, clk / 10000);

}



#ifdef CONFIG_CPU_FREQ
@@ -282,24 +282,33 @@ static int pxa2xx_drv_pcmcia_probe(struct platform_device *dev) 
	struct pcmcia_low_level *ops;

	struct skt_dev_info *sinfo;

	struct soc_pcmcia_socket *skt;

	struct clk *clk;



	ops = (struct pcmcia_low_level *)dev->dev.platform_data;

	if (!ops)

		return -ENODEV;



	clk = clk_get(&dev->dev, NULL);

	if (!clk)

		return -ENODEV;



	pxa2xx_drv_pcmcia_ops(ops);



	sinfo = kzalloc(SKT_DEV_INFO_SIZE(ops->nr), GFP_KERNEL);

	if (!sinfo)

	if (!sinfo) {

		clk_put(clk);

		return -ENOMEM;

	}



	sinfo->nskt = ops->nr;

	sinfo->clk = clk;



	/* Initialize processor specific parameters */

	for (i = 0; i < ops->nr; i++) {

		skt = &sinfo->skt[i];



		skt->nr = ops->first + i;

		skt->clk = clk;

		skt->ops = ops;

		skt->socket.owner = ops->owner;

		skt->socket.dev.parent = &dev->dev;
@@ -314,6 +323,7 @@ static int pxa2xx_drv_pcmcia_probe(struct platform_device *dev) 
		while (--i >= 0)

			soc_pcmcia_remove_one(&sinfo->skt[i]);

		kfree(sinfo);

		clk_put(clk);

	} else {

		pxa2xx_configure_sockets(&dev->dev);

		dev_set_drvdata(&dev->dev, sinfo);
@@ -332,6 +342,7 @@ static int pxa2xx_drv_pcmcia_remove(struct platform_device *dev) 
	for (i = 0; i < sinfo->nskt; i++)

		soc_pcmcia_remove_one(&sinfo->skt[i]);



	clk_put(sinfo->clk);

	kfree(sinfo);

	return 0;

}