static int i2c_pxa_remove(struct platform_device *dev)
{
	struct pxa_i2c *i2c = platform_get_drvdata(dev);

	platform_set_drvdata(dev, NULL);

	i2c_del_adapter(&i2c->adap);
	free_irq(i2c->irq, i2c);
	switch (dev->id) {
	case 0:
		pxa_set_cken(CKEN14_I2C, 0);
		break;
#ifdef CONFIG_PXA27x
	case 1:
		pxa_set_cken(CKEN15_PWRI2C, 0);
		local_irq_disable();
		PCFR &= ~PCFR_PI2CEN;
		local_irq_enable();
#endif
	}
	release_mem_region(i2c->iobase, i2c->iosize);
	kfree(i2c);

	return 0;
}
Exemple #2
0
/* Backlight ***/
static void palmtt3_bl_power(int on)
{
 /*    SET_PALMTT3_GPIO(BL_POWER, on); */ /* to be determined */
	pxa_set_cken(CKEN0_PWM0, on);
	pxa_set_cken(CKEN1_PWM1, on);
	mdelay(50);
}
static void htcsable_set_bl_intensity(int intensity)
{
  printk("htcsable_set_bl_intensity: %d\n", intensity);

	/* LCD brightness is driven by PWM0.
	 * We'll set the pre-scaler to 8, and the period to 1024, this
	 * means the backlight refresh rate will be 3686400/(8*1024) =
	 * 450 Hz which is quite enough.
	 */
	PWM_CTRL0 = 7;            /* pre-scaler */
	PWM_PWDUTY0 = intensity; /* duty cycle */
	PWM_PERVAL0 = HTCSABLE_MAX_INTENSITY;      /* period */

	if (intensity > 0) {
		asic3_set_gpio_out_d(&htcsable_asic3.dev,
			GPIOD_LCD_BACKLIGHT, GPIOD_LCD_BACKLIGHT);
    mdelay(15);
		asic3_set_gpio_out_d(&htcsable_asic3.dev,
			1<<14, 1<<14);
    mdelay(15);
		pxa_set_cken(CKEN0_PWM0, 1);
	} else {
		asic3_set_gpio_out_d(&htcsable_asic3.dev,
			GPIOD_LCD_BACKLIGHT, 0);
    mdelay(15);
		asic3_set_gpio_out_d(&htcsable_asic3.dev,
			1<<14, 0);
    mdelay(15);
		pxa_set_cken(CKEN0_PWM0, 0);
	}
}
Exemple #4
0
static void pxa2xx_ac97_cold_reset(struct snd_ac97 *ac97)
{
	GCR &=  GCR_COLD_RST;  /* clear everything but nCRST */
	GCR &= ~GCR_COLD_RST;  /* then assert nCRST */

	gsr_bits = 0;
#ifdef CONFIG_PXA27x
	/* PXA27x Developers Manual section 13.5.2.2.1 */
	pxa_set_cken(31, 1);
	udelay(5);
	pxa_set_cken(31, 0);
	GCR = GCR_COLD_RST;
	udelay(50);
#else
	GCR = GCR_COLD_RST;
	GCR |= GCR_CDONE_IE|GCR_SDONE_IE;
	wait_event_timeout(gsr_wq, gsr_bits & (GSR_PCR | GSR_SCR), 1);
#endif

	if (!((GSR | gsr_bits) & (GSR_PCR | GSR_SCR)))
		printk(KERN_INFO "%s: cold reset timeout (GSR=%#lx)\n",
				 __FUNCTION__, gsr_bits);

	GCR &= ~(GCR_PRIRDY_IEN|GCR_SECRDY_IEN);
	GCR |= GCR_SDONE_IE|GCR_CDONE_IE;
}
Exemple #5
0
static int pxa2xx_ac97_probe(struct platform_device *pdev)
{
	int ret;

	ret = request_irq(IRQ_AC97, pxa2xx_ac97_irq, IRQF_DISABLED, "AC97", NULL);
	if (ret < 0)
		goto err;

	pxa_gpio_mode(GPIO31_SYNC_AC97_MD);
	pxa_gpio_mode(GPIO30_SDATA_OUT_AC97_MD);
	pxa_gpio_mode(GPIO28_BITCLK_AC97_MD);
	pxa_gpio_mode(GPIO29_SDATA_IN_AC97_MD);
#ifdef CONFIG_PXA27x
	/* Use GPIO 113 as AC97 Reset on Bulverde */
	pxa_gpio_mode(113 | GPIO_ALT_FN_2_OUT);
#endif
	pxa_set_cken(CKEN2_AC97, 1);
	return 0;

 err:
	if (CKEN & CKEN2_AC97) {
		GCR |= GCR_ACLINK_OFF;
		free_irq(IRQ_AC97, NULL);
		pxa_set_cken(CKEN2_AC97, 0);
	}
	return ret;
}
static void pxa_irda_shutdown(struct pxa_irda *si)
{
	unsigned long flags;

	local_irq_save(flags);

	/* disable STUART and interrupt */
	STIER = 0;
	/* disable STUART SIR mode */
	STISR = 0;
	/* disable the STUART clock */
	pxa_set_cken(CKEN5_STUART, 0);

	/* disable DMA */
	DCSR(si->txdma) &= ~DCSR_RUN;
	DCSR(si->rxdma) &= ~DCSR_RUN;
	/* disable FICP */
	ICCR0 = 0;
	/* disable the FICP clock */
	pxa_set_cken(CKEN13_FICP, 0);

	DRCMR17 = 0;
	DRCMR18 = 0;

	local_irq_restore(flags);

	/* power off board transceiver */
	si->pdata->transceiver_mode(si->dev, IR_OFF);

	printk(KERN_DEBUG "pxa_ir: irda shutdown\n");
}
Exemple #7
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static void magician_set_bl_intensity(int intensity)
{
	if (intensity) {
		PWM_CTRL0 = 1;
		PWM_PERVAL0 = 0xc8;
		PWM_PWDUTY0 = intensity;
		pxa_set_cken(CKEN_PWM0, 1);
	} else {
		pxa_set_cken(CKEN_PWM0, 0);
	}
}
Exemple #8
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static void mainstone_backlight_power(int on)
{
	if (on) {
		pxa_gpio_mode(GPIO16_PWM0_MD);
		pxa_set_cken(CKEN0_PWM0, 1);
		PWM_CTRL0 = 0;
		PWM_PWDUTY0 = 0x3ff;
		PWM_PERVAL0 = 0x3ff;
	} else {
		PWM_CTRL0 = 0;
		PWM_PWDUTY0 = 0x0;
		PWM_PERVAL0 = 0x3FF;
		pxa_set_cken(CKEN0_PWM0, 0);
	}
}
Exemple #9
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static void csb226_backlight_power (int on)
{
  if (on) {
    pxa_gpio_mode(GPIO17_PWM1_MD | GPIO_OUT);
    pxa_set_cken(CKEN1_PWM1, 1);
    PWM_CTRL1 = 0;
    PWM_PWDUTY1 = 0x3ff;
    PWM_PERVAL1 = 0x3ff;
  } else {
    PWM_CTRL1 = 0;
    PWM_PWDUTY1 = 0x0;
    PWM_PERVAL1 = 0x3FF;
    pxa_set_cken(CKEN1_PWM1, 0);
  }
  return;
}
static int pxa27x_start_hc(struct device *dev)
{
	int retval = 0;
	struct pxaohci_platform_data *inf;

	inf = dev->platform_data;

	pxa_set_cken(CKEN10_USBHOST, 1);

	UHCHR |= UHCHR_FHR;
	udelay(11);
	UHCHR &= ~UHCHR_FHR;

	UHCHR |= UHCHR_FSBIR;
	while (UHCHR & UHCHR_FSBIR)
		cpu_relax();

	if (inf->init)
		retval = inf->init(dev);

	if (retval < 0)
		return retval;

	UHCHR &= ~UHCHR_SSE;

	UHCHIE = (UHCHIE_UPRIE | UHCHIE_RWIE);

	/* Clear any OTG Pin Hold */
	if (PSSR & PSSR_OTGPH)
		PSSR |= PSSR_OTGPH;

	return 0;
}
Exemple #11
0
static int pxa2xx_ac97_suspend(struct platform_device *pdev,
	struct snd_soc_cpu_dai *dai)
{
	GCR |= GCR_ACLINK_OFF;
	pxa_set_cken(CKEN2_AC97, 0);
	return 0;
}
Exemple #12
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static void pxa27x_start_hc(struct platform_device *dev)
{
	pxa_set_cken(CKEN10_USBHOST, 1);

	UHCHR |= UHCHR_FHR;
	udelay(11);
	UHCHR &= ~UHCHR_FHR;

	UHCHR |= UHCHR_FSBIR;
	while (UHCHR & UHCHR_FSBIR)
		cpu_relax();

	/* This could be properly abstracted away through the
	   device data the day more machines are supported and
	   their differences can be figured out correctly. */
	if (machine_is_mainstone()) {
		/* setup Port1 GPIO pin. */
		pxa_gpio_mode( 88 | GPIO_ALT_FN_1_IN);	/* USBHPWR1 */
		pxa_gpio_mode( 89 | GPIO_ALT_FN_2_OUT);	/* USBHPEN1 */

		/* Set the Power Control Polarity Low and Power Sense
		   Polarity Low to active low. Supply power to USB ports. */
		UHCHR = (UHCHR | UHCHR_PCPL | UHCHR_PSPL) &
			~(UHCHR_SSEP1 | UHCHR_SSEP2 | UHCHR_SSEP3 | UHCHR_SSE);
	}

	UHCHR &= ~UHCHR_SSE;

	UHCHIE = (UHCHIE_UPRIE | UHCHIE_RWIE);
}
static void pxa2xx_ac97_reset(ac97_t *ac97)
{
	/* First, try cold reset */
	GCR &=  GCR_COLD_RST;  /* clear everything but nCRST */
	GCR &= ~GCR_COLD_RST;  /* then assert nCRST */

	gsr_bits = 0;
#ifdef CONFIG_PXA27x
	/* PXA27x Developers Manual section 13.5.2.2.1 */
	pxa_set_cken(1 << 31, 1);
	udelay(5);
	pxa_set_cken(1 << 31, 0);
	GCR = GCR_COLD_RST;
	udelay(50);
#else
	GCR = GCR_COLD_RST;
	GCR |= GCR_PRIRDY_IEN|GCR_SECRDY_IEN;
	wait_event_timeout(gsr_wq, gsr_bits & (GSR_PCR | GSR_SCR), 1);
#endif

	if (!((GSR | gsr_bits) & (GSR_PCR | GSR_SCR))) {
		printk(KERN_INFO "%s: cold reset timeout (GSR=%#lx)\n",
				 __FUNCTION__, gsr_bits);

		/* let's try warm reset */
		gsr_bits = 0;
#ifdef CONFIG_PXA27x
		/* warm reset broken on Bulverde,
		   so manually keep AC97 reset high */
		pxa_gpio_mode(113 | GPIO_OUT | GPIO_DFLT_HIGH); 
		udelay(10);
		GCR |= GCR_WARM_RST;
		pxa_gpio_mode(113 | GPIO_ALT_FN_2_OUT);
		udelay(50);
#else
		GCR |= GCR_WARM_RST|GCR_PRIRDY_IEN|GCR_SECRDY_IEN;;
		wait_event_timeout(gsr_wq, gsr_bits & (GSR_PCR | GSR_SCR), 1);
#endif			

		if (!((GSR | gsr_bits) & (GSR_PCR | GSR_SCR)))
			printk(KERN_INFO "%s: warm reset timeout (GSR=%#lx)\n",
					 __FUNCTION__, gsr_bits);
	}

	GCR &= ~(GCR_PRIRDY_IEN|GCR_SECRDY_IEN);
	GCR |= GCR_SDONE_IE|GCR_CDONE_IE;
}
Exemple #14
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static void
serial_pxa_pm(struct uart_port *port, unsigned int state,
	      unsigned int oldstate)
{
	struct uart_pxa_port *up = (struct uart_pxa_port *)port;
	pxa_set_cken(up->cken, !state);
	if (!state)
		udelay(1);
}
Exemple #15
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static int mainstone_backlight_update_status(struct backlight_device *bl)
{
	int brightness = bl->props.brightness;

	if (bl->props.power != FB_BLANK_UNBLANK ||
	    bl->props.fb_blank != FB_BLANK_UNBLANK)
		brightness = 0;

	if (brightness != 0) {
		pxa_gpio_mode(GPIO16_PWM0_MD);
		pxa_set_cken(CKEN_PWM0, 1);
	}
	PWM_CTRL0 = 0;
	PWM_PWDUTY0 = brightness;
	PWM_PERVAL0 = bl->props.max_brightness;
	if (brightness == 0)
		pxa_set_cken(CKEN_PWM0, 0);
	return 0; /* pointless return value */
}
Exemple #16
0
static void magician_set_bl_intensity(int intensity)
{
    if (intensity) {
        PWM_CTRL0 = 1;
        PWM_PERVAL0 = 0xc8;
        if (intensity > 0xc7) {
            PWM_PWDUTY0 = intensity - 0x48;
            gpio_set_value(EGPIO_MAGICIAN_BL_POWER2, 1);
        } else {
            PWM_PWDUTY0 = intensity;
            gpio_set_value(EGPIO_MAGICIAN_BL_POWER2, 0);
        }
        gpio_set_value(EGPIO_MAGICIAN_BL_POWER, 1);
        pxa_set_cken(CKEN_PWM0, 1);
    } else {
        /* PWM_PWDUTY0 = intensity; */
        gpio_set_value(EGPIO_MAGICIAN_BL_POWER, 0);
        pxa_set_cken(CKEN_PWM0, 0);
    }
}
Exemple #17
0
/*
 * FIXME: This function is board specific
 */
int
pxa_pwm_init(int pwm)
{
    /* Set the control register to divide by 2 */
    PWMCR0 = 0x01;
    PWMCR1 = 0x01;

    /* Set the duty cycle */
    PWMDCR0 = 0x06;
    PWMDCR1 = 0x06;

    /* Set the period */
    PWMPCR0 = 0x0A;
    PWMPCR1 = 0x0A;

    pxa_set_cken(CKEN0_PWM0, 1);
    pxa_set_cken(CKEN1_PWM1, 1);

    return 0;
}
Exemple #18
0
static void pxa27x_stop_hc(struct platform_device *dev)
{
	UHCHR |= UHCHR_FHR;
	udelay(11);
	UHCHR &= ~UHCHR_FHR;

	UHCCOMS |= 1;
	udelay(10);

	pxa_set_cken(CKEN10_USBHOST, 0);
}
Exemple #19
0
static int pxa2xx_ac97_do_resume(struct snd_card *card)
{
	pxa2xx_audio_ops_t *platform_ops = card->dev->platform_data;

	pxa_set_cken(CKEN_AC97, 1);
	if (platform_ops && platform_ops->resume)
		platform_ops->resume(platform_ops->priv);
	snd_ac97_resume(pxa2xx_ac97_ac97);
	snd_power_change_state(card, SNDRV_CTL_POWER_D0);

	return 0;
}
static int pxa2xx_ac97_do_resume(snd_card_t *card, unsigned int state)
{
	if (card->power_state != SNDRV_CTL_POWER_D0) {
		pxa2xx_audio_ops_t *platform_ops = card->dev->platform_data;
		pxa_set_cken(CKEN2_AC97, 1);
		if (platform_ops && platform_ops->resume)
			platform_ops->resume(platform_ops->priv);
		snd_ac97_resume(pxa2xx_ac97_ac97);
		snd_power_change_state(card, SNDRV_CTL_POWER_D0);
	}

	return 0;
}
Exemple #21
0
static int pxa2xx_ac97_do_suspend(struct snd_card *card, pm_message_t state)
{
	pxa2xx_audio_ops_t *platform_ops = card->dev->platform_data;

	snd_power_change_state(card, SNDRV_CTL_POWER_D3cold);
	snd_pcm_suspend_all(pxa2xx_ac97_pcm);
	snd_ac97_suspend(pxa2xx_ac97_ac97);
	if (platform_ops && platform_ops->suspend)
		platform_ops->suspend(platform_ops->priv);
	GCR |= GCR_ACLINK_OFF;
	pxa_set_cken(CKEN_AC97, 0);

	return 0;
}
Exemple #22
0
static int pxa2xx_ac97_resume(struct platform_device *pdev,
	struct snd_soc_cpu_dai *dai)
{
	pxa_gpio_mode(GPIO31_SYNC_AC97_MD);
	pxa_gpio_mode(GPIO30_SDATA_OUT_AC97_MD);
	pxa_gpio_mode(GPIO28_BITCLK_AC97_MD);
	pxa_gpio_mode(GPIO29_SDATA_IN_AC97_MD);
#ifdef CONFIG_PXA27x
	/* Use GPIO 113 as AC97 Reset on Bulverde */
	pxa_gpio_mode(113 | GPIO_ALT_FN_2_OUT);
#endif
	pxa_set_cken(CKEN2_AC97, 1);
	return 0;
}
Exemple #23
0
static int __devexit pxa2xx_ac97_remove(struct platform_device *dev)
{
	struct snd_card *card = platform_get_drvdata(dev);

	if (card) {
		snd_card_free(card);
		platform_set_drvdata(dev, NULL);
		GCR |= GCR_ACLINK_OFF;
		free_irq(IRQ_AC97, NULL);
		pxa_set_cken(CKEN_AC97, 0);
	}

	return 0;
}
static int pxa2xx_ac97_remove(struct device *dev)
{
	snd_card_t *card = dev_get_drvdata(dev);

	if (card) {
		snd_card_free(card);
		dev_set_drvdata(dev, NULL);
		GCR |= GCR_ACLINK_OFF;
		free_irq(IRQ_AC97, NULL);
		pxa_set_cken(CKEN2_AC97, 0);
	}

	return 0;
}
static int pxa2xx_ac97_do_suspend(snd_card_t *card, unsigned int state)
{
	if (card->power_state != SNDRV_CTL_POWER_D3cold) {
		pxa2xx_audio_ops_t *platform_ops = card->dev->platform_data;
		snd_pcm_suspend_all(pxa2xx_ac97_pcm);
		snd_ac97_suspend(pxa2xx_ac97_ac97);
		snd_power_change_state(card, SNDRV_CTL_POWER_D3cold);
		if (platform_ops && platform_ops->suspend)
			platform_ops->suspend(platform_ops->priv);
		GCR |= GCR_ACLINK_OFF;
		pxa_set_cken(CKEN2_AC97, 0);
	}

	return 0;
}
Exemple #26
0
/**
 * ssp_exit - undo the effects of ssp_init
 *
 * release and free resources for the SSP port.
 */
void ssp_exit(struct ssp_dev *dev)
{
	mutex_lock(&mutex);
	SSCR0_P(dev->port) &= ~SSCR0_SSE;

    	if (dev->port > PXA_SSP_PORTS || dev->port == 0) {
		printk(KERN_WARNING "SSP: tried to close invalid port\n");
		return;
	}

	pxa_set_cken(ssp_info[dev->port-1].clock, 0);
	if (dev->irq)
		free_irq(dev->irq, dev);
	release_mem_region(__PREG(SSCR0_P(dev->port)), 0x2c);
	use_count[dev->port - 1]--;
	mutex_unlock(&mutex);
}
static void pxa27x_stop_hc(struct device *dev)
{
	struct pxaohci_platform_data *inf;

	inf = dev->platform_data;

	if (inf->exit)
		inf->exit(dev);

	UHCHR |= UHCHR_FHR;
	udelay(11);
	UHCHR &= ~UHCHR_FHR;

	UHCCOMS |= 1;
	udelay(10);

	pxa_set_cken(CKEN10_USBHOST, 0);
}
Exemple #28
0
static int pxakbd_open(struct input_dev *dev)
{
	/* Set keypad control register */
	KPC |= (KPC_ASACT |
		KPC_MS_ALL |
		(2 << 6) | KPC_REE0 | KPC_DK_DEB_SEL |
		KPC_ME | KPC_MIE | KPC_DE | KPC_DIE);

	KPC &= ~KPC_AS;         /* disable automatic scan */
	KPC &= ~KPC_IMKP;       /* do not ignore multiple keypresses */

	/* Set rotary count to mid-point value */
	KPREC = 0x7F;

	/* Enable unit clock */
	pxa_set_cken(CKEN_KEYPAD, 1);

	return 0;
}
Exemple #29
0
/**
 * ssp_init - setup the SSP port
 *
 * initialise and claim resources for the SSP port.
 *
 * Returns:
 *   %-ENODEV	if the SSP port is unavailable
 *   %-EBUSY	if the resources are already in use
 *   %0		on success
 */
int ssp_init(struct ssp_dev *dev, u32 port, u32 init_flags)
{
	int ret;

	if (port > PXA_SSP_PORTS || port == 0)
		return -ENODEV;

	mutex_lock(&mutex);
	if (use_count[port - 1]) {
		mutex_unlock(&mutex);
		return -EBUSY;
	}
	use_count[port - 1]++;

	if (!request_mem_region(__PREG(SSCR0_P(port)), 0x2c, "SSP")) {
		use_count[port - 1]--;
		mutex_unlock(&mutex);
		return -EBUSY;
	}
	dev->port = port;

	/* do we need to get irq */
	if (!(init_flags & SSP_NO_IRQ)) {
		ret = request_irq(ssp_info[port-1].irq, ssp_interrupt,
				0, "SSP", dev);
	    	if (ret)
			goto out_region;
	    	dev->irq = ssp_info[port-1].irq;
	} else
		dev->irq = 0;

	/* turn on SSP port clock */
	pxa_set_cken(ssp_info[port-1].clock, 1);
	mutex_unlock(&mutex);
	return 0;

out_region:
	release_mem_region(__PREG(SSCR0_P(port)), 0x2c);
	use_count[port - 1]--;
	mutex_unlock(&mutex);
	return ret;
}
Exemple #30
0
static int pxakbd_resume(struct platform_device *pdev)
{
	struct pxa27x_keyboard_platform_data *pdata = pdev->dev.platform_data;
	struct input_dev *input_dev = platform_get_drvdata(pdev);

	mutex_lock(&input_dev->mutex);

	if (input_dev->users) {
		/* Restore controller status */
		KPC = pdata->reg_kpc;
		KPREC = pdata->reg_kprec;

		/* Enable unit clock */
		pxa_set_cken(CKEN19_KEYPAD, 1);
	}

	mutex_unlock(&input_dev->mutex);

	return 0;
}