Example #1
0
static void sprd_sdio_card_remove(struct mmc_card *card) {
    struct mmc_host *host = card->host;
    if (mmc_card_sdio(card)) {
        if(host->caps & MMC_CAP_POWER_OFF_CARD) {
            pm_suspend_ignore_children(mmc_classdev(host), true);  
            pm_runtime_idle(mmc_classdev(host)); 
        }
    }
}
static void sprd_sdio_card_remove(struct mmc_card *card) {
    struct mmc_host *host = card->host;
    if (mmc_card_sdio(card)) {
        if(host->caps & MMC_CAP_POWER_OFF_CARD) {
            pm_suspend_ignore_children(mmc_classdev(host), true);  // avoid mmc_attach_sdio->pm_runtime_set_active returning with error -16
            pm_runtime_idle(mmc_classdev(host)); // make platform devices runtime suspendable
        }
    }
}
Example #3
0
File: sh_cmt.c Project: 7799/linux
static int sh_cmt_probe(struct platform_device *pdev)
{
	struct sh_cmt_priv *p = platform_get_drvdata(pdev);
	struct sh_timer_config *cfg = pdev->dev.platform_data;
	int ret;

	if (!is_early_platform_device(pdev)) {
		pm_runtime_set_active(&pdev->dev);
		pm_runtime_enable(&pdev->dev);
	}

	if (p) {
		dev_info(&pdev->dev, "kept as earlytimer\n");
		goto out;
	}

	p = kmalloc(sizeof(*p), GFP_KERNEL);
	if (p == NULL) {
		dev_err(&pdev->dev, "failed to allocate driver data\n");
		return -ENOMEM;
	}

	ret = sh_cmt_setup(p, pdev);
	if (ret) {
		kfree(p);
		pm_runtime_idle(&pdev->dev);
		return ret;
	}
	if (is_early_platform_device(pdev))
		return 0;

 out:
	if (cfg->clockevent_rating || cfg->clocksource_rating)
		pm_runtime_irq_safe(&pdev->dev);
	else
		pm_runtime_idle(&pdev->dev);

	return 0;
}
/**
 * pm_generic_complete - Generic routine competing a device power transition.
 * @dev: Device to handle.
 *
 * Complete a device power transition during a system-wide power transition.
 */
void pm_generic_complete(struct device *dev)
{
    struct device_driver *drv = dev->driver;

    if (drv && drv->pm && drv->pm->complete)
        drv->pm->complete(dev);

    /*
     * Let runtime PM try to suspend devices that haven't been in use before
     * going into the system-wide sleep state we're resuming from.
     */
    pm_runtime_idle(dev);
}
Example #5
0
static int wm5102_probe(struct platform_device *pdev)
{
	struct arizona *arizona = dev_get_drvdata(pdev->dev.parent);
	struct wm5102_priv *wm5102;
	int i, ret;

	wm5102 = devm_kzalloc(&pdev->dev, sizeof(struct wm5102_priv),
			      GFP_KERNEL);
	if (wm5102 == NULL)
		return -ENOMEM;
	platform_set_drvdata(pdev, wm5102);

	wm5102->core.arizona = arizona;

	wm5102->core.adsp[0].part = "wm5102";
	wm5102->core.adsp[0].num = 1;
	wm5102->core.adsp[0].type = WMFW_ADSP2;
	wm5102->core.adsp[0].base = ARIZONA_DSP1_CONTROL_1;
	wm5102->core.adsp[0].dev = arizona->dev;
	wm5102->core.adsp[0].regmap = arizona->regmap;
	wm5102->core.adsp[0].mem = wm5102_dsp1_regions;
	wm5102->core.adsp[0].num_mems = ARRAY_SIZE(wm5102_dsp1_regions);

	ret = wm_adsp2_init(&wm5102->core.adsp[0], true);
	if (ret != 0)
		return ret;

	for (i = 0; i < ARRAY_SIZE(wm5102->fll); i++)
		wm5102->fll[i].vco_mult = 1;

	arizona_init_fll(arizona, 1, ARIZONA_FLL1_CONTROL_1 - 1,
			 ARIZONA_IRQ_FLL1_LOCK, ARIZONA_IRQ_FLL1_CLOCK_OK,
			 &wm5102->fll[0]);
	arizona_init_fll(arizona, 2, ARIZONA_FLL2_CONTROL_1 - 1,
			 ARIZONA_IRQ_FLL2_LOCK, ARIZONA_IRQ_FLL2_CLOCK_OK,
			 &wm5102->fll[1]);

	for (i = 0; i < ARRAY_SIZE(wm5102_dai); i++)
		arizona_init_dai(&wm5102->core, i);

	/* Latch volume update bits */
	for (i = 0; i < ARRAY_SIZE(wm5102_digital_vu); i++)
		regmap_update_bits(arizona->regmap, wm5102_digital_vu[i],
				   WM5102_DIG_VU, WM5102_DIG_VU);

	pm_runtime_enable(&pdev->dev);
	pm_runtime_idle(&pdev->dev);

	return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_wm5102,
				      wm5102_dai, ARRAY_SIZE(wm5102_dai));
}
Example #6
0
static int sh_tmu_probe(struct platform_device *pdev)
{
	struct sh_tmu_device *tmu = platform_get_drvdata(pdev);
	int ret;

	if (!is_early_platform_device(pdev)) {
		pm_runtime_set_active(&pdev->dev);
		pm_runtime_enable(&pdev->dev);
	}

	if (tmu) {
		dev_info(&pdev->dev, "kept as earlytimer\n");
		goto out;
	}

	tmu = kzalloc(sizeof(*tmu), GFP_KERNEL);
	if (tmu == NULL)
		return -ENOMEM;

	ret = sh_tmu_setup(tmu, pdev);
	if (ret) {
		kfree(tmu);
		pm_runtime_idle(&pdev->dev);
		return ret;
	}
	if (is_early_platform_device(pdev))
		return 0;

 out:
	if (tmu->has_clockevent || tmu->has_clocksource)
		pm_runtime_irq_safe(&pdev->dev);
	else
		pm_runtime_idle(&pdev->dev);

	return 0;
}
Example #7
0
static int wm8997_probe(struct platform_device *pdev)
{
	struct arizona *arizona = dev_get_drvdata(pdev->dev.parent);
	struct wm8997_priv *wm8997;
	int i;

	wm8997 = devm_kzalloc(&pdev->dev, sizeof(struct wm8997_priv),
			      GFP_KERNEL);
	if (wm8997 == NULL)
		return -ENOMEM;
	platform_set_drvdata(pdev, wm8997);

	wm8997->core.arizona = arizona;
	wm8997->core.num_inputs = 4;

	arizona_init_dvfs(&wm8997->core);

	for (i = 0; i < ARRAY_SIZE(wm8997->fll); i++)
		wm8997->fll[i].vco_mult = 1;

	arizona_init_fll(arizona, 1, ARIZONA_FLL1_CONTROL_1 - 1,
			 ARIZONA_IRQ_FLL1_LOCK, ARIZONA_IRQ_FLL1_CLOCK_OK,
			 &wm8997->fll[0]);
	arizona_init_fll(arizona, 2, ARIZONA_FLL2_CONTROL_1 - 1,
			 ARIZONA_IRQ_FLL2_LOCK, ARIZONA_IRQ_FLL2_CLOCK_OK,
			 &wm8997->fll[1]);

	/* SR2 fixed at 8kHz, SR3 fixed at 16kHz */
	regmap_update_bits(arizona->regmap, ARIZONA_SAMPLE_RATE_2,
			   ARIZONA_SAMPLE_RATE_2_MASK, 0x11);
	regmap_update_bits(arizona->regmap, ARIZONA_SAMPLE_RATE_3,
			   ARIZONA_SAMPLE_RATE_3_MASK, 0x12);

	for (i = 0; i < ARRAY_SIZE(wm8997_dai); i++)
		arizona_init_dai(&wm8997->core, i);

	/* Latch volume update bits */
	for (i = 0; i < ARRAY_SIZE(wm8997_digital_vu); i++)
		regmap_update_bits(arizona->regmap, wm8997_digital_vu[i],
				   WM8997_DIG_VU, WM8997_DIG_VU);

	pm_runtime_enable(&pdev->dev);
	pm_runtime_idle(&pdev->dev);

	return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_wm8997,
				      wm8997_dai, ARRAY_SIZE(wm8997_dai));
}
Example #8
0
File: wm8998.c Project: SelfImp/m75
static int wm8998_probe(struct platform_device *pdev)
{
	struct arizona *arizona = dev_get_drvdata(pdev->dev.parent);
	struct wm8998_priv *wm8998;
	int i;

	wm8998 = devm_kzalloc(&pdev->dev, sizeof(struct wm8998_priv),
			      GFP_KERNEL);
	if (!wm8998)
		return -ENOMEM;
	platform_set_drvdata(pdev, wm8998);

	/* Set of_node to parent from the SPI device to allow DAPM to
	 * locate regulator supplies */
	pdev->dev.of_node = arizona->dev->of_node;

	wm8998->core.arizona = arizona;
	wm8998->core.num_inputs = 3;	/* IN1L, IN1R, IN2 */

	for (i = 0; i < ARRAY_SIZE(wm8998->fll); i++)
		wm8998->fll[i].vco_mult = 1;

	arizona->dcvdd_lp_fmax = 24576000;

	arizona_init_fll(arizona, 1, ARIZONA_FLL1_CONTROL_1 - 1,
			 ARIZONA_IRQ_FLL1_LOCK, ARIZONA_IRQ_FLL1_CLOCK_OK,
			 &wm8998->fll[0]);
	arizona_init_fll(arizona, 2, ARIZONA_FLL2_CONTROL_1 - 1,
			 ARIZONA_IRQ_FLL2_LOCK, ARIZONA_IRQ_FLL2_CLOCK_OK,
			 &wm8998->fll[1]);

	for (i = 0; i < ARRAY_SIZE(wm8998_dai); i++)
		arizona_init_dai(&wm8998->core, i);

	/* Latch volume update bits */
	for (i = 0; i < ARRAY_SIZE(wm8998_digital_vu); i++)
		regmap_update_bits(arizona->regmap, wm8998_digital_vu[i],
				   WM8998_DIG_VU, WM8998_DIG_VU);

	pm_runtime_enable(&pdev->dev);
	pm_runtime_idle(&pdev->dev);

	return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_wm8998,
				      wm8998_dai, ARRAY_SIZE(wm8998_dai));
}
Example #9
0
/*check the usbsvn interface driver status after resume*/
static void usbsvn_post_resume_work(struct work_struct *work)
{
	struct usbsvn *svn =
		container_of(work, struct usbsvn, post_resume_work);
	struct device *dev = &svn->usbdev->dev;
	int spin = 10;
	int err;

#ifdef CONFIG_SAMSUNG_PHONE_SVNET
	if (svn->skip_hostwakeup && mc_is_host_wakeup()) {
		dev_info(dev,
			"post resume host skip=%d, host gpio=%d, rpm_stat=%d",
			svn->skip_hostwakeup, mc_is_host_wakeup(),
			dev->power.runtime_status);
retry:
		switch (dev->power.runtime_status) {
		case RPM_SUSPENDED:
			svn->resume_debug = 1;
			err = pm_runtime_resume(dev);
			if (!err && dev->power.timer_expires == 0
				&& dev->power.request_pending == false) {
				printk(KERN_DEBUG "%s:run time idle\n",
					__func__);
				pm_runtime_idle(dev);
			}
			svn->resume_debug = 0;
			break;
		case RPM_SUSPENDING:
			if (spin--) {
				dev_err(dev,
					"usbsvn suspending when resum spin=%d\n"
					, spin);
				msleep(20);
				goto retry;
			}
		case RPM_RESUMING:
		case RPM_ACTIVE:
			break;
		}
		svn->skip_hostwakeup = 0;
	}
#endif
}
static int wm5110_probe(struct platform_device *pdev)
{
	struct arizona *arizona = dev_get_drvdata(pdev->dev.parent);
	struct wm5110_priv *wm5110;
	int i;

	wm5110 = devm_kzalloc(&pdev->dev, sizeof(struct wm5110_priv),
			      GFP_KERNEL);
	if (wm5110 == NULL)
		return -ENOMEM;
	platform_set_drvdata(pdev, wm5110);

	wm5110->core.arizona = arizona;
	wm5110->core.num_inputs = 8;

	for (i = 0; i < ARRAY_SIZE(wm5110->fll); i++)
		wm5110->fll[i].vco_mult = 3;

	arizona_init_fll(arizona, 1, ARIZONA_FLL1_CONTROL_1 - 1,
			 ARIZONA_IRQ_FLL1_LOCK, ARIZONA_IRQ_FLL1_CLOCK_OK,
			 &wm5110->fll[0]);
	arizona_init_fll(arizona, 2, ARIZONA_FLL2_CONTROL_1 - 1,
			 ARIZONA_IRQ_FLL2_LOCK, ARIZONA_IRQ_FLL2_CLOCK_OK,
			 &wm5110->fll[1]);

	for (i = 0; i < ARRAY_SIZE(wm5110_dai); i++)
		arizona_init_dai(&wm5110->core, i);

	/* Latch volume update bits */
	for (i = 0; i < ARRAY_SIZE(wm5110_digital_vu); i++)
		regmap_update_bits(arizona->regmap, wm5110_digital_vu[i],
				   WM5110_DIG_VU, WM5110_DIG_VU);

	pm_runtime_enable(&pdev->dev);
	pm_runtime_idle(&pdev->dev);

	return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_wm5110,
				      wm5110_dai, ARRAY_SIZE(wm5110_dai));
}
Example #11
0
int usbsvn_request_resume(void)
{
	struct device *dev;
	int err=0;

	if (!share_svn->usbdev)
		return -EFAULT;

	dev = &share_svn->usbdev->dev;

	if (share_svn->dpm_suspending) {
		share_svn->skip_hostwakeup = 1;
		printk(KERN_DEBUG "%s: suspending skip host wakeup\n",
			__func__);
		return 0;
	}
	usb_mark_last_busy(share_svn->usbdev);
	if (share_svn->resume_debug >= 1) {
		printk(KERN_DEBUG "%s: resumeing, return\n", __func__);
		return 0;
	}

	if (dev->power.status != DPM_OFF) {
		wake_lock_pm(share_svn);
		printk(KERN_DEBUG "%s:run time resume\n", __func__);
		share_svn->resume_debug = 1;
		err = pm_runtime_resume(dev);
		if (!err && dev->power.timer_expires == 0
			&& dev->power.request_pending == false) {
			printk(KERN_DEBUG "%s:run time idle\n", __func__);
			pm_runtime_idle(dev);
		}
		share_svn->resume_debug = 0;
	}
	return 0;
}
Example #12
0
static void hsic_pm_runtime_work(struct work_struct *work)
{
	int ret;
	struct link_pm_data *pm_data =
		container_of(work, struct link_pm_data, hsic_pm_work.work);
	struct usb_device *usbdev = pm_data->usb_ld->usbdev;
	struct device *dev = &usbdev->dev;

	if (pm_data->dpm_suspending || !pm_data->usb_ld->if_usb_connected)
		return;

	MIF_DEBUG("for dev 0x%p : current %d\n", dev,
				dev->power.runtime_status);

	switch (dev->power.runtime_status) {
	case RPM_ACTIVE:
		pm_data->resume_retry_cnt = 0;
		pm_data->resume_requested = false;
		pm_data->rpm_suspending_cnt = 0;
		return;
	case RPM_SUSPENDED:
		if (pm_data->resume_requested)
			break;
		pm_data->resume_requested = true;
		wake_lock(&pm_data->rpm_wake);
		if (!pm_data->usb_ld->if_usb_connected) {
			report_modem_state(&pm_data->usb_ld->ld,
							MODEM_EVENT_DISCONN);
			wake_unlock(&pm_data->rpm_wake);
			return;
		}
		ret = pm_runtime_resume(dev);
		if (ret < 0) {
			MIF_ERR("resume error(%d)\n", ret);
			if (!pm_data->usb_ld->if_usb_connected) {
				wake_unlock(&pm_data->rpm_wake);
				return;
			}
			/* force to go runtime idle before retry resume */
			if (dev->power.timer_expires == 0 &&
						!dev->power.request_pending) {
				MIF_ERR("run time idle\n");
				pm_runtime_idle(dev);
			}
		}
		wake_unlock(&pm_data->rpm_wake);
		pm_data->rpm_suspending_cnt = 0;
		break;
	case RPM_SUSPENDING:
		/* checking the usb_runtime_suspend running times */
		wake_lock(&pm_data->rpm_wake);
		pm_data->rpm_suspending_cnt++;
		if (pm_data->rpm_suspending_cnt < 10)
			msleep(20);
		else if (pm_data->rpm_suspending_cnt < 30)
			msleep(50);
		else
			msleep(100);
		wake_unlock(&pm_data->rpm_wake);
		break;
	case RPM_RESUMING:
	default:
		MIF_DEBUG("RPM Resuming, ssuspending_cnt :%d\n",
						pm_data->rpm_suspending_cnt);
		pm_data->rpm_suspending_cnt = 0;
		break;
	}
	pm_data->resume_requested = false;
	/* check until runtime_status goes to active */
	if (dev->power.runtime_status == RPM_ACTIVE) {
		pm_data->resume_retry_cnt = 0;
		pm_data->rpm_suspending_cnt = 0;
	} else if (pm_data->resume_retry_cnt++ > 80) {
		MIF_ERR("runtime_status:%d, retry_cnt:%d, notify MODEM_EVENT_CRASH\n",
			dev->power.runtime_status, pm_data->resume_retry_cnt);
		report_modem_state(&pm_data->usb_ld->ld, MODEM_EVENT_CRASH);
	} else {
		MIF_DEBUG("runtime_status:%d, retry_cnt:%d, redo hsic_pm_work\n",
			dev->power.runtime_status, pm_data->resume_retry_cnt);
		queue_delayed_work(pm_data->wq, &pm_data->hsic_pm_work,
							msecs_to_jiffies(20));
	}
}
static __devinit int wm8994_device_init(struct wm8994 *wm8994, int irq)
{
	struct wm8994_pdata *pdata = wm8994->dev->platform_data;
	struct regmap_config *regmap_config;
	const struct reg_default *regmap_patch = NULL;
	const char *devname;
	int ret, i, patch_regs;
	int pulls = 0;

	dev_set_drvdata(wm8994->dev, wm8994);

	
	ret = mfd_add_devices(wm8994->dev, -1,
			      wm8994_regulator_devs,
			      ARRAY_SIZE(wm8994_regulator_devs),
			      NULL, 0);
	if (ret != 0) {
		dev_err(wm8994->dev, "Failed to add children: %d\n", ret);
		goto err;
	}

	switch (wm8994->type) {
	case WM1811:
		wm8994->num_supplies = ARRAY_SIZE(wm1811_main_supplies);
		break;
	case WM8994:
		wm8994->num_supplies = ARRAY_SIZE(wm8994_main_supplies);
		break;
	case WM8958:
		wm8994->num_supplies = ARRAY_SIZE(wm8958_main_supplies);
		break;
	default:
		BUG();
		goto err;
	}

	wm8994->supplies = devm_kzalloc(wm8994->dev,
					sizeof(struct regulator_bulk_data) *
					wm8994->num_supplies, GFP_KERNEL);
	if (!wm8994->supplies) {
		ret = -ENOMEM;
		goto err;
	}

	switch (wm8994->type) {
	case WM1811:
		for (i = 0; i < ARRAY_SIZE(wm1811_main_supplies); i++)
			wm8994->supplies[i].supply = wm1811_main_supplies[i];
		break;
	case WM8994:
		for (i = 0; i < ARRAY_SIZE(wm8994_main_supplies); i++)
			wm8994->supplies[i].supply = wm8994_main_supplies[i];
		break;
	case WM8958:
		for (i = 0; i < ARRAY_SIZE(wm8958_main_supplies); i++)
			wm8994->supplies[i].supply = wm8958_main_supplies[i];
		break;
	default:
		BUG();
		goto err;
	}
		
	ret = regulator_bulk_get(wm8994->dev, wm8994->num_supplies,
				 wm8994->supplies);
	if (ret != 0) {
		dev_err(wm8994->dev, "Failed to get supplies: %d\n", ret);
		goto err;
	}

	ret = regulator_bulk_enable(wm8994->num_supplies,
				    wm8994->supplies);
	if (ret != 0) {
		dev_err(wm8994->dev, "Failed to enable supplies: %d\n", ret);
		goto err_get;
	}

	ret = wm8994_reg_read(wm8994, WM8994_SOFTWARE_RESET);
	if (ret < 0) {
		dev_err(wm8994->dev, "Failed to read ID register\n");
		goto err_enable;
	}
	switch (ret) {
	case 0x1811:
		devname = "WM1811";
		if (wm8994->type != WM1811)
			dev_warn(wm8994->dev, "Device registered as type %d\n",
				 wm8994->type);
		wm8994->type = WM1811;
		break;
	case 0x8994:
		devname = "WM8994";
		if (wm8994->type != WM8994)
			dev_warn(wm8994->dev, "Device registered as type %d\n",
				 wm8994->type);
		wm8994->type = WM8994;
		break;
	case 0x8958:
		devname = "WM8958";
		if (wm8994->type != WM8958)
			dev_warn(wm8994->dev, "Device registered as type %d\n",
				 wm8994->type);
		wm8994->type = WM8958;
		break;
	default:
		dev_err(wm8994->dev, "Device is not a WM8994, ID is %x\n",
			ret);
		ret = -EINVAL;
		goto err_enable;
	}

	ret = wm8994_reg_read(wm8994, WM8994_CHIP_REVISION);
	if (ret < 0) {
		dev_err(wm8994->dev, "Failed to read revision register: %d\n",
			ret);
		goto err_enable;
	}
	wm8994->revision = ret;

	switch (wm8994->type) {
	case WM8994:
		switch (wm8994->revision) {
		case 0:
		case 1:
			dev_warn(wm8994->dev,
				 "revision %c not fully supported\n",
				 'A' + wm8994->revision);
			break;
		case 2:
		case 3:
			regmap_patch = wm8994_revc_patch;
			patch_regs = ARRAY_SIZE(wm8994_revc_patch);
			break;
		default:
			break;
		}
		break;

	case WM8958:
		switch (wm8994->revision) {
		case 0:
			regmap_patch = wm8958_reva_patch;
			patch_regs = ARRAY_SIZE(wm8958_reva_patch);
			break;
		default:
			break;
		}
		break;

	case WM1811:
		
		if (wm8994->revision > 1)
			wm8994->revision++;
		switch (wm8994->revision) {
		case 0:
		case 1:
		case 2:
		case 3:
		case 4:
			regmap_patch = wm1811_reva_patch;
			patch_regs = ARRAY_SIZE(wm1811_reva_patch);
			break;
		default:
			break;
		}
		break;

	default:
		break;
	}

	dev_info(wm8994->dev, "%s revision %c\n", devname,
		 'A' + wm8994->revision);

	switch (wm8994->type) {
	case WM1811:
		regmap_config = &wm1811_regmap_config;
		break;
	case WM8994:
		regmap_config = &wm8994_regmap_config;
		break;
	case WM8958:
		regmap_config = &wm8958_regmap_config;
		break;
	default:
		dev_err(wm8994->dev, "Unknown device type %d\n", wm8994->type);
		return -EINVAL;
	}

	ret = regmap_reinit_cache(wm8994->regmap, regmap_config);
	if (ret != 0) {
		dev_err(wm8994->dev, "Failed to reinit register cache: %d\n",
			ret);
		return ret;
	}

	if (regmap_patch) {
		ret = regmap_register_patch(wm8994->regmap, regmap_patch,
					    patch_regs);
		if (ret != 0) {
			dev_err(wm8994->dev, "Failed to register patch: %d\n",
				ret);
			goto err;
		}
	}

	if (pdata) {
		wm8994->irq_base = pdata->irq_base;
		wm8994->gpio_base = pdata->gpio_base;

		
		for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) {
			if (pdata->gpio_defaults[i]) {
				wm8994_set_bits(wm8994, WM8994_GPIO_1 + i,
						0xffff,
						pdata->gpio_defaults[i]);
			}
		}

		wm8994->ldo_ena_always_driven = pdata->ldo_ena_always_driven;

		if (pdata->spkmode_pu)
			pulls |= WM8994_SPKMODE_PU;
	}

	
	wm8994_set_bits(wm8994, WM8994_PULL_CONTROL_2,
			WM8994_LDO1ENA_PD | WM8994_LDO2ENA_PD |
			WM8994_SPKMODE_PU | WM8994_CSNADDR_PD,
			pulls);

	for (i = 0; i < WM8994_NUM_LDO_REGS; i++) {
		if (wm8994_ldo_in_use(pdata, i))
			wm8994_set_bits(wm8994, WM8994_LDO_1 + i,
					WM8994_LDO1_DISCH, WM8994_LDO1_DISCH);
		else
			wm8994_set_bits(wm8994, WM8994_LDO_1 + i,
					WM8994_LDO1_DISCH, 0);
	}

	wm8994_irq_init(wm8994);

	ret = mfd_add_devices(wm8994->dev, -1,
			      wm8994_devs, ARRAY_SIZE(wm8994_devs),
			      NULL, 0);
	if (ret != 0) {
		dev_err(wm8994->dev, "Failed to add children: %d\n", ret);
		goto err_irq;
	}

	pm_runtime_enable(wm8994->dev);
	pm_runtime_idle(wm8994->dev);

	return 0;

err_irq:
	wm8994_irq_exit(wm8994);
err_enable:
	regulator_bulk_disable(wm8994->num_supplies,
			       wm8994->supplies);
err_get:
	regulator_bulk_free(wm8994->num_supplies, wm8994->supplies);
err:
	mfd_remove_devices(wm8994->dev);
	return ret;
}
Example #14
0
int smdhsic_pm_resume(void)
{
	int r = 0;
	int spin = 20;
	struct device *dev;

	pr_debug("%s\n", __func__);

	if (!g_usbdev.usbdev) {
		smdctl_request_connection_recover(true);
		return -EFAULT;
	}

	if (g_usbdev.hsic && g_usbdev.hsic->dpm_suspending) {
		pr_debug("%s : dpm is suspending just return\n", __func__);
		return 0;
	}

	dev = &g_usbdev.usbdev->dev;

	if (usb_runtime_pm_ap_initiated_L2) {
wait_active:
		if (g_usbdev.hsic && g_usbdev.hsic->dpm_suspending) {
			pr_debug("%s : dpm is suspending just return\n",
				__func__);
			return 0;
		}
		switch (dev->power.runtime_status) {
		case RPM_SUSPENDED:
			r = pm_runtime_resume(dev);
			if (!r && dev->power.timer_expires == 0
			 		&& dev->power.request_pending == false) {
	                			pr_err("%s:run time idle\n", __func__);
					pm_runtime_idle(dev);
			} else if (r < 0) {
				pr_err("%s : pm_runtime_resume failed : %d\n", __func__, r);
				smdctl_request_connection_recover(true);
				return r;
			}
			msleep(20);
			goto wait_active;
			break;
		case RPM_SUSPENDING:
		case RPM_RESUMING:
			if (spin-- < 0) {
				if (g_usbdev.hsic &&
					g_usbdev.hsic->resume_failcnt++ > 5) {
					g_usbdev.hsic->resume_failcnt = 0;
					smdctl_request_connection_recover(true);
					return -EFAULT;
				}
				return -ETIMEDOUT;
			}
			msleep(20);
			goto wait_active;
		case RPM_ACTIVE:
			if (g_usbdev.hsic)
				g_usbdev.hsic->resume_failcnt = 0;
			break;
		default:
			break;
		}
		return 0;
	}

	pr_debug("%s (%d)\n", __func__, dev->power.runtime_status);

	pr_debug("%s(pwr.usg_cnt:%d)\n",
		__func__, atomic_read(&dev->power.usage_count));
	if (!(atomic_read(&dev->power.usage_count)))
		r = pm_runtime_get_sync(dev);

	pr_debug("%s done %d \t %d\n",
		__func__, r, dev->power.usage_count.counter);
	return r;
}
Example #15
0
int pcm512x_probe(struct device *dev, struct regmap *regmap)
{
	struct pcm512x_priv *pcm512x;
	int i, ret;

	pcm512x = devm_kzalloc(dev, sizeof(struct pcm512x_priv), GFP_KERNEL);
	if (!pcm512x)
		return -ENOMEM;

	dev_set_drvdata(dev, pcm512x);
	pcm512x->regmap = regmap;

	for (i = 0; i < ARRAY_SIZE(pcm512x->supplies); i++)
		pcm512x->supplies[i].supply = pcm512x_supply_names[i];

	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(pcm512x->supplies),
				      pcm512x->supplies);
	if (ret != 0) {
		dev_err(dev, "Failed to get supplies: %d\n", ret);
		return ret;
	}

	pcm512x->supply_nb[0].notifier_call = pcm512x_regulator_event_0;
	pcm512x->supply_nb[1].notifier_call = pcm512x_regulator_event_1;
	pcm512x->supply_nb[2].notifier_call = pcm512x_regulator_event_2;

	for (i = 0; i < ARRAY_SIZE(pcm512x->supplies); i++) {
		ret = regulator_register_notifier(pcm512x->supplies[i].consumer,
						  &pcm512x->supply_nb[i]);
		if (ret != 0) {
			dev_err(dev,
				"Failed to register regulator notifier: %d\n",
				ret);
		}
	}

	ret = regulator_bulk_enable(ARRAY_SIZE(pcm512x->supplies),
				    pcm512x->supplies);
	if (ret != 0) {
		dev_err(dev, "Failed to enable supplies: %d\n", ret);
		return ret;
	}

	/* Reset the device, verifying I/O in the process for I2C */
	ret = regmap_write(regmap, PCM512x_RESET,
			   PCM512x_RSTM | PCM512x_RSTR);
	if (ret != 0) {
		dev_err(dev, "Failed to reset device: %d\n", ret);
		goto err;
	}

	ret = regmap_write(regmap, PCM512x_RESET, 0);
	if (ret != 0) {
		dev_err(dev, "Failed to reset device: %d\n", ret);
		goto err;
	}

	pcm512x->sclk = devm_clk_get(dev, NULL);
	if (IS_ERR(pcm512x->sclk)) {
		if (PTR_ERR(pcm512x->sclk) == -EPROBE_DEFER)
			return -EPROBE_DEFER;

		dev_info(dev, "No SCLK, using BCLK: %ld\n",
			 PTR_ERR(pcm512x->sclk));

		/* Disable reporting of missing SCLK as an error */
		regmap_update_bits(regmap, PCM512x_ERROR_DETECT,
				   PCM512x_IDCH, PCM512x_IDCH);

		/* Switch PLL input to BCLK */
		regmap_update_bits(regmap, PCM512x_PLL_REF,
				   PCM512x_SREF, PCM512x_SREF);
	} else {
		ret = clk_prepare_enable(pcm512x->sclk);
		if (ret != 0) {
			dev_err(dev, "Failed to enable SCLK: %d\n", ret);
			return ret;
		}
	}

	/* Default to standby mode */
	ret = regmap_update_bits(pcm512x->regmap, PCM512x_POWER,
				 PCM512x_RQST, PCM512x_RQST);
	if (ret != 0) {
		dev_err(dev, "Failed to request standby: %d\n",
			ret);
		goto err_clk;
	}

	pm_runtime_set_active(dev);
	pm_runtime_enable(dev);
	pm_runtime_idle(dev);

	ret = snd_soc_register_codec(dev, &pcm512x_codec_driver,
				    &pcm512x_dai, 1);
	if (ret != 0) {
		dev_err(dev, "Failed to register CODEC: %d\n", ret);
		goto err_pm;
	}

	return 0;

err_pm:
	pm_runtime_disable(dev);
err_clk:
	if (!IS_ERR(pcm512x->sclk))
		clk_disable_unprepare(pcm512x->sclk);
err:
	regulator_bulk_disable(ARRAY_SIZE(pcm512x->supplies),
				     pcm512x->supplies);
	return ret;
}
Example #16
0
/*
 * Instantiate the generic non-control parts of the device.
 */
static int wm8994_device_init(struct wm8994 *wm8994, int irq)
{
	struct wm8994_pdata *pdata;
	struct regmap_config *regmap_config;
	const struct reg_default *regmap_patch = NULL;
	const char *devname;
	int ret, i, patch_regs = 0;
	int pulls = 0;

	if (dev_get_platdata(wm8994->dev)) {
		pdata = dev_get_platdata(wm8994->dev);
		wm8994->pdata = *pdata;
	}
	pdata = &wm8994->pdata;

	ret = wm8994_set_pdata_from_of(wm8994);
	if (ret != 0)
		return ret;

	dev_set_drvdata(wm8994->dev, wm8994);

	/* Add the on-chip regulators first for bootstrapping */
	ret = mfd_add_devices(wm8994->dev, -1,
			      wm8994_regulator_devs,
			      ARRAY_SIZE(wm8994_regulator_devs),
			      NULL, 0, NULL);
	if (ret != 0) {
		dev_err(wm8994->dev, "Failed to add children: %d\n", ret);
		goto err;
	}

	switch (wm8994->type) {
	case WM1811:
		wm8994->num_supplies = ARRAY_SIZE(wm1811_main_supplies);
		break;
	case WM8994:
		wm8994->num_supplies = ARRAY_SIZE(wm8994_main_supplies);
		break;
	case WM8958:
		wm8994->num_supplies = ARRAY_SIZE(wm8958_main_supplies);
		break;
	default:
		BUG();
		goto err;
	}

	wm8994->supplies = devm_kzalloc(wm8994->dev,
					sizeof(struct regulator_bulk_data) *
					wm8994->num_supplies, GFP_KERNEL);
	if (!wm8994->supplies) {
		ret = -ENOMEM;
		goto err;
	}

	switch (wm8994->type) {
	case WM1811:
		for (i = 0; i < ARRAY_SIZE(wm1811_main_supplies); i++)
			wm8994->supplies[i].supply = wm1811_main_supplies[i];
		break;
	case WM8994:
		for (i = 0; i < ARRAY_SIZE(wm8994_main_supplies); i++)
			wm8994->supplies[i].supply = wm8994_main_supplies[i];
		break;
	case WM8958:
		for (i = 0; i < ARRAY_SIZE(wm8958_main_supplies); i++)
			wm8994->supplies[i].supply = wm8958_main_supplies[i];
		break;
	default:
		BUG();
		goto err;
	}
		
	ret = devm_regulator_bulk_get(wm8994->dev, wm8994->num_supplies,
				 wm8994->supplies);
	if (ret != 0) {
		dev_err(wm8994->dev, "Failed to get supplies: %d\n", ret);
		goto err;
	}

	ret = regulator_bulk_enable(wm8994->num_supplies,
				    wm8994->supplies);
	if (ret != 0) {
		dev_err(wm8994->dev, "Failed to enable supplies: %d\n", ret);
		goto err;
	}

	ret = wm8994_reg_read(wm8994, WM8994_SOFTWARE_RESET);
	if (ret < 0) {
		dev_err(wm8994->dev, "Failed to read ID register\n");
		goto err_enable;
	}
	switch (ret) {
	case 0x1811:
		devname = "WM1811";
		if (wm8994->type != WM1811)
			dev_warn(wm8994->dev, "Device registered as type %d\n",
				 wm8994->type);
		wm8994->type = WM1811;
		break;
	case 0x8994:
		devname = "WM8994";
		if (wm8994->type != WM8994)
			dev_warn(wm8994->dev, "Device registered as type %d\n",
				 wm8994->type);
		wm8994->type = WM8994;
		break;
	case 0x8958:
		devname = "WM8958";
		if (wm8994->type != WM8958)
			dev_warn(wm8994->dev, "Device registered as type %d\n",
				 wm8994->type);
		wm8994->type = WM8958;
		break;
	default:
		dev_err(wm8994->dev, "Device is not a WM8994, ID is %x\n",
			ret);
		ret = -EINVAL;
		goto err_enable;
	}

	ret = wm8994_reg_read(wm8994, WM8994_CHIP_REVISION);
	if (ret < 0) {
		dev_err(wm8994->dev, "Failed to read revision register: %d\n",
			ret);
		goto err_enable;
	}
	wm8994->revision = ret & WM8994_CHIP_REV_MASK;
	wm8994->cust_id = (ret & WM8994_CUST_ID_MASK) >> WM8994_CUST_ID_SHIFT;

	switch (wm8994->type) {
	case WM8994:
		switch (wm8994->revision) {
		case 0:
		case 1:
			dev_warn(wm8994->dev,
				 "revision %c not fully supported\n",
				 'A' + wm8994->revision);
			break;
		case 2:
		case 3:
		default:
			regmap_patch = wm8994_revc_patch;
			patch_regs = ARRAY_SIZE(wm8994_revc_patch);
			break;
		}
		break;

	case WM8958:
		switch (wm8994->revision) {
		case 0:
			regmap_patch = wm8958_reva_patch;
			patch_regs = ARRAY_SIZE(wm8958_reva_patch);
			break;
		default:
			break;
		}
		break;

	case WM1811:
		/* Revision C did not change the relevant layer */
		if (wm8994->revision > 1)
			wm8994->revision++;

		regmap_patch = wm1811_reva_patch;
		patch_regs = ARRAY_SIZE(wm1811_reva_patch);
		break;

	default:
		break;
	}

	dev_info(wm8994->dev, "%s revision %c CUST_ID %02x\n", devname,
		 'A' + wm8994->revision, wm8994->cust_id);

	switch (wm8994->type) {
	case WM1811:
		regmap_config = &wm1811_regmap_config;
		break;
	case WM8994:
		regmap_config = &wm8994_regmap_config;
		break;
	case WM8958:
		regmap_config = &wm8958_regmap_config;
		break;
	default:
		dev_err(wm8994->dev, "Unknown device type %d\n", wm8994->type);
		return -EINVAL;
	}

	ret = regmap_reinit_cache(wm8994->regmap, regmap_config);
	if (ret != 0) {
		dev_err(wm8994->dev, "Failed to reinit register cache: %d\n",
			ret);
		return ret;
	}

	/* Explicitly put the device into reset in case regulators
	 * don't get disabled in order to ensure we know the device
	 * state.
	 */
	ret = wm8994_reg_write(wm8994, WM8994_SOFTWARE_RESET,
			       wm8994_reg_read(wm8994, WM8994_SOFTWARE_RESET));
	if (ret != 0) {
		dev_err(wm8994->dev, "Failed to reset device: %d\n", ret);
		return ret;
	}

	if (regmap_patch) {
		ret = regmap_register_patch(wm8994->regmap, regmap_patch,
					    patch_regs);
		if (ret != 0) {
			dev_err(wm8994->dev, "Failed to register patch: %d\n",
				ret);
			goto err;
		}
	}

	wm8994->irq_base = pdata->irq_base;
	wm8994->gpio_base = pdata->gpio_base;

	/* GPIO configuration is only applied if it's non-zero */
	for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) {
		if (pdata->gpio_defaults[i]) {
			wm8994_set_bits(wm8994, WM8994_GPIO_1 + i,
					0xffff, pdata->gpio_defaults[i]);
		}
	}

	wm8994->ldo_ena_always_driven = pdata->ldo_ena_always_driven;

	if (pdata->spkmode_pu)
		pulls |= WM8994_SPKMODE_PU;

	/* Disable unneeded pulls */
	wm8994_set_bits(wm8994, WM8994_PULL_CONTROL_2,
			WM8994_LDO1ENA_PD | WM8994_LDO2ENA_PD |
			WM8994_SPKMODE_PU | WM8994_CSNADDR_PD,
			pulls);

	/* In some system designs where the regulators are not in use,
	 * we can achieve a small reduction in leakage currents by
	 * floating LDO outputs.  This bit makes no difference if the
	 * LDOs are enabled, it only affects cases where the LDOs were
	 * in operation and are then disabled.
	 */
	for (i = 0; i < WM8994_NUM_LDO_REGS; i++) {
		if (wm8994_ldo_in_use(pdata, i))
			wm8994_set_bits(wm8994, WM8994_LDO_1 + i,
					WM8994_LDO1_DISCH, WM8994_LDO1_DISCH);
		else
			wm8994_set_bits(wm8994, WM8994_LDO_1 + i,
					WM8994_LDO1_DISCH, 0);
	}

	wm8994_irq_init(wm8994);

	ret = mfd_add_devices(wm8994->dev, -1,
			      wm8994_devs, ARRAY_SIZE(wm8994_devs),
			      NULL, 0, NULL);
	if (ret != 0) {
		dev_err(wm8994->dev, "Failed to add children: %d\n", ret);
		goto err_irq;
	}

	pm_runtime_enable(wm8994->dev);
	pm_runtime_idle(wm8994->dev);

	return 0;

err_irq:
	wm8994_irq_exit(wm8994);
err_enable:
	regulator_bulk_disable(wm8994->num_supplies,
			       wm8994->supplies);
err:
	mfd_remove_devices(wm8994->dev);
	return ret;
}
Example #17
0
static int ov13858_probe(struct i2c_client *client,
			 const struct i2c_device_id *devid)
{
	struct ov13858 *ov13858;
	int ret;
	u32 val = 0;

	device_property_read_u32(&client->dev, "clock-frequency", &val);
	if (val != 19200000)
		return -EINVAL;

	ov13858 = devm_kzalloc(&client->dev, sizeof(*ov13858), GFP_KERNEL);
	if (!ov13858)
		return -ENOMEM;

	/* Initialize subdev */
	v4l2_i2c_subdev_init(&ov13858->sd, client, &ov13858_subdev_ops);

	/* Check module identity */
	ret = ov13858_identify_module(ov13858);
	if (ret) {
		dev_err(&client->dev, "failed to find sensor: %d\n", ret);
		return ret;
	}

	/* Set default mode to max resolution */
	ov13858->cur_mode = &supported_modes[0];

	ret = ov13858_init_controls(ov13858);
	if (ret)
		return ret;

	/* Initialize subdev */
	ov13858->sd.internal_ops = &ov13858_internal_ops;
	ov13858->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
	ov13858->sd.entity.ops = &ov13858_subdev_entity_ops;
	ov13858->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;

	/* Initialize source pad */
	ov13858->pad.flags = MEDIA_PAD_FL_SOURCE;
	ret = media_entity_pads_init(&ov13858->sd.entity, 1, &ov13858->pad);
	if (ret) {
		dev_err(&client->dev, "%s failed:%d\n", __func__, ret);
		goto error_handler_free;
	}

	ret = v4l2_async_register_subdev_sensor_common(&ov13858->sd);
	if (ret < 0)
		goto error_media_entity;

	/*
	 * Device is already turned on by i2c-core with ACPI domain PM.
	 * Enable runtime PM and turn off the device.
	 */
	pm_runtime_set_active(&client->dev);
	pm_runtime_enable(&client->dev);
	pm_runtime_idle(&client->dev);

	return 0;

error_media_entity:
	media_entity_cleanup(&ov13858->sd.entity);

error_handler_free:
	ov13858_free_controls(ov13858);
	dev_err(&client->dev, "%s failed:%d\n", __func__, ret);

	return ret;
}
Example #18
0
static void link_pm_runtime_work(struct work_struct *work)
{
	int ret;
	struct link_pm_data *pm_data =
		container_of(work, struct link_pm_data, link_pm_work.work);
	struct device *dev = &pm_data->usb_ld->usbdev->dev;

	if (!pm_data->usb_ld->if_usb_connected || pm_data->dpm_suspending)
		return;

	if (pm_data->usb_ld->ld.com_state == COM_NONE)
		return;

	mif_debug("for dev 0x%p : current %d\n", dev,
					dev->power.runtime_status);

	switch (dev->power.runtime_status) {
	case RPM_ACTIVE:
		pm_data->resume_retry_cnt = 0;
		pm_data->resume_requested = false;
		complete(&pm_data->active_done);

		return;
	case RPM_SUSPENDED:
		if (pm_data->resume_requested)
			break;
		pm_data->resume_requested = true;
		wake_lock(&pm_data->rpm_wake);
		ret = link_pm_slave_wake(pm_data);
		if (ret < 0) {
			mif_err("slave wake fail\n");
			wake_unlock(&pm_data->rpm_wake);
			break;
		}

		if (!pm_data->usb_ld->if_usb_connected) {
			wake_unlock(&pm_data->rpm_wake);
			return;
		}

		ret = pm_runtime_resume(dev);
		if (ret < 0) {
			mif_err("resume error(%d)\n", ret);
			if (!pm_data->usb_ld->if_usb_connected) {
				wake_unlock(&pm_data->rpm_wake);
				return;
			}
			/* force to go runtime idle before retry resume */
			if (dev->power.timer_expires == 0 &&
						!dev->power.request_pending) {
				mif_debug("run time idle\n");
				pm_runtime_idle(dev);
			}
		}
		wake_unlock(&pm_data->rpm_wake);
		break;
	case RPM_SUSPENDING:
		/* Checking the usb_runtime_suspend running time.*/
		mif_info("rpm_states=%d", dev->power.runtime_status);
		msleep(20);
		break;
	default:
		break;
	}
	pm_data->resume_requested = false;

	/* check until runtime_status goes to active */
	/* attemp 10 times, or re-establish modem-link */
	/* if pm_runtime_resume run properly, rpm status must be in ACTIVE */
	if (dev->power.runtime_status == RPM_ACTIVE) {
		pm_data->resume_retry_cnt = 0;
		complete(&pm_data->active_done);
	} else if (pm_data->resume_retry_cnt++ > 10) {
		mif_err("runtime_status(%d), retry_cnt(%d)\n",
			dev->power.runtime_status, pm_data->resume_retry_cnt);
		link_pm_change_modem_state(pm_data, STATE_CRASH_RESET);
	} else
		queue_delayed_work(pm_data->wq, &pm_data->link_pm_work,
							msecs_to_jiffies(20));
}
Example #19
0
static int sun6i_spi_probe(struct platform_device *pdev)
{
	struct spi_master *master;
	struct sun6i_spi *sspi;
	struct resource	*res;
	int ret = 0, irq;

	master = spi_alloc_master(&pdev->dev, sizeof(struct sun6i_spi));
	if (!master) {
		dev_err(&pdev->dev, "Unable to allocate SPI Master\n");
		return -ENOMEM;
	}

	platform_set_drvdata(pdev, master);
	sspi = spi_master_get_devdata(master);

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	sspi->base_addr = devm_ioremap_resource(&pdev->dev, res);
	if (IS_ERR(sspi->base_addr)) {
		ret = PTR_ERR(sspi->base_addr);
		goto err_free_master;
	}

	irq = platform_get_irq(pdev, 0);
	if (irq < 0) {
		dev_err(&pdev->dev, "No spi IRQ specified\n");
		ret = -ENXIO;
		goto err_free_master;
	}

	ret = devm_request_irq(&pdev->dev, irq, sun6i_spi_handler,
			       0, "sun6i-spi", sspi);
	if (ret) {
		dev_err(&pdev->dev, "Cannot request IRQ\n");
		goto err_free_master;
	}

	sspi->master = master;
	sspi->fifo_depth = (unsigned long)of_device_get_match_data(&pdev->dev);

	master->max_speed_hz = 100 * 1000 * 1000;
	master->min_speed_hz = 3 * 1000;
	master->set_cs = sun6i_spi_set_cs;
	master->transfer_one = sun6i_spi_transfer_one;
	master->num_chipselect = 4;
	master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH | SPI_LSB_FIRST;
	master->bits_per_word_mask = SPI_BPW_MASK(8);
	master->dev.of_node = pdev->dev.of_node;
	master->auto_runtime_pm = true;
	master->max_transfer_size = sun6i_spi_max_transfer_size;

	sspi->hclk = devm_clk_get(&pdev->dev, "ahb");
	if (IS_ERR(sspi->hclk)) {
		dev_err(&pdev->dev, "Unable to acquire AHB clock\n");
		ret = PTR_ERR(sspi->hclk);
		goto err_free_master;
	}

	sspi->mclk = devm_clk_get(&pdev->dev, "mod");
	if (IS_ERR(sspi->mclk)) {
		dev_err(&pdev->dev, "Unable to acquire module clock\n");
		ret = PTR_ERR(sspi->mclk);
		goto err_free_master;
	}

	init_completion(&sspi->done);

	sspi->rstc = devm_reset_control_get(&pdev->dev, NULL);
	if (IS_ERR(sspi->rstc)) {
		dev_err(&pdev->dev, "Couldn't get reset controller\n");
		ret = PTR_ERR(sspi->rstc);
		goto err_free_master;
	}

	/*
	 * This wake-up/shutdown pattern is to be able to have the
	 * device woken up, even if runtime_pm is disabled
	 */
	ret = sun6i_spi_runtime_resume(&pdev->dev);
	if (ret) {
		dev_err(&pdev->dev, "Couldn't resume the device\n");
		goto err_free_master;
	}

	pm_runtime_set_active(&pdev->dev);
	pm_runtime_enable(&pdev->dev);
	pm_runtime_idle(&pdev->dev);

	ret = devm_spi_register_master(&pdev->dev, master);
	if (ret) {
		dev_err(&pdev->dev, "cannot register SPI master\n");
		goto err_pm_disable;
	}

	return 0;

err_pm_disable:
	pm_runtime_disable(&pdev->dev);
	sun6i_spi_runtime_suspend(&pdev->dev);
err_free_master:
	spi_master_put(master);
	return ret;
}
Example #20
0
int pcm512x_probe(struct device *dev, struct regmap *regmap)
{
	struct pcm512x_priv *pcm512x;
	int i, ret;

	pcm512x = devm_kzalloc(dev, sizeof(struct pcm512x_priv), GFP_KERNEL);
	if (!pcm512x)
		return -ENOMEM;

	dev_set_drvdata(dev, pcm512x);
	pcm512x->regmap = regmap;

	for (i = 0; i < ARRAY_SIZE(pcm512x->supplies); i++)
		pcm512x->supplies[i].supply = pcm512x_supply_names[i];

	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(pcm512x->supplies),
				      pcm512x->supplies);
	if (ret != 0) {
		dev_err(dev, "Failed to get supplies: %d\n", ret);
		return ret;
	}

	pcm512x->supply_nb[0].notifier_call = pcm512x_regulator_event_0;
	pcm512x->supply_nb[1].notifier_call = pcm512x_regulator_event_1;
	pcm512x->supply_nb[2].notifier_call = pcm512x_regulator_event_2;

	for (i = 0; i < ARRAY_SIZE(pcm512x->supplies); i++) {
		ret = regulator_register_notifier(pcm512x->supplies[i].consumer,
						  &pcm512x->supply_nb[i]);
		if (ret != 0) {
			dev_err(dev,
				"Failed to register regulator notifier: %d\n",
				ret);
		}
	}

	ret = regulator_bulk_enable(ARRAY_SIZE(pcm512x->supplies),
				    pcm512x->supplies);
	if (ret != 0) {
		dev_err(dev, "Failed to enable supplies: %d\n", ret);
		return ret;
	}

	/* Reset the device, verifying I/O in the process for I2C */
	ret = regmap_write(regmap, PCM512x_RESET,
			   PCM512x_RSTM | PCM512x_RSTR);
	if (ret != 0) {
		dev_err(dev, "Failed to reset device: %d\n", ret);
		goto err;
	}

	ret = regmap_write(regmap, PCM512x_RESET, 0);
	if (ret != 0) {
		dev_err(dev, "Failed to reset device: %d\n", ret);
		goto err;
	}

	pcm512x->sclk = devm_clk_get(dev, NULL);
	if (PTR_ERR(pcm512x->sclk) == -EPROBE_DEFER)
		return -EPROBE_DEFER;
	if (!IS_ERR(pcm512x->sclk)) {
		ret = clk_prepare_enable(pcm512x->sclk);
		if (ret != 0) {
			dev_err(dev, "Failed to enable SCLK: %d\n", ret);
			return ret;
		}
	}

	/* Default to standby mode */
	ret = regmap_update_bits(pcm512x->regmap, PCM512x_POWER,
				 PCM512x_RQST, PCM512x_RQST);
	if (ret != 0) {
		dev_err(dev, "Failed to request standby: %d\n",
			ret);
		goto err_clk;
	}

	pm_runtime_set_active(dev);
	pm_runtime_enable(dev);
	pm_runtime_idle(dev);

#ifdef CONFIG_OF
	if (dev->of_node) {
		const struct device_node *np = dev->of_node;
		u32 val;

		if (of_property_read_u32(np, "pll-in", &val) >= 0) {
			if (val > 6) {
				dev_err(dev, "Invalid pll-in\n");
				ret = -EINVAL;
				goto err_clk;
			}
			pcm512x->pll_in = val;
		}

		if (of_property_read_u32(np, "pll-out", &val) >= 0) {
			if (val > 6) {
				dev_err(dev, "Invalid pll-out\n");
				ret = -EINVAL;
				goto err_clk;
			}
			pcm512x->pll_out = val;
		}

		if (!pcm512x->pll_in != !pcm512x->pll_out) {
			dev_err(dev,
				"Error: both pll-in and pll-out, or none\n");
			ret = -EINVAL;
			goto err_clk;
		}
		if (pcm512x->pll_in && pcm512x->pll_in == pcm512x->pll_out) {
			dev_err(dev, "Error: pll-in == pll-out\n");
			ret = -EINVAL;
			goto err_clk;
		}
	}
#endif

	ret = snd_soc_register_codec(dev, &pcm512x_codec_driver,
				    &pcm512x_dai, 1);
	if (ret != 0) {
		dev_err(dev, "Failed to register CODEC: %d\n", ret);
		goto err_pm;
	}

	return 0;

err_pm:
	pm_runtime_disable(dev);
err_clk:
	if (!IS_ERR(pcm512x->sclk))
		clk_disable_unprepare(pcm512x->sclk);
err:
	regulator_bulk_disable(ARRAY_SIZE(pcm512x->supplies),
				     pcm512x->supplies);
	return ret;
}
static int __devinit arizona_extcon_probe(struct platform_device *pdev)
{
	struct arizona *arizona = dev_get_drvdata(pdev->dev.parent);
	struct arizona_pdata *pdata;
	struct arizona_extcon_info *info;
	int ret, mode;

	pdata = dev_get_platdata(arizona->dev);

	info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
	if (!info) {
		dev_err(&pdev->dev, "failed to allocate memory\n");
		ret = -ENOMEM;
		goto err;
	}

	info->micvdd = devm_regulator_get(arizona->dev, "MICVDD");
	if (IS_ERR(info->micvdd)) {
		ret = PTR_ERR(info->micvdd);
		dev_err(arizona->dev, "Failed to get MICVDD: %d\n", ret);
		goto err;
	}

	mutex_init(&info->lock);
	info->arizona = arizona;
	info->dev = &pdev->dev;
	info->detecting = true;
	platform_set_drvdata(pdev, info);

	switch (arizona->type) {
	case WM5102:
		switch (arizona->rev) {
		case 0:
			info->micd_reva = true;
			break;
		default:
			break;
		}
		break;
	default:
		break;
	}

	info->edev.name = "Headset Jack";
	info->edev.supported_cable = arizona_cable;

	ret = extcon_dev_register(&info->edev, arizona->dev);
	if (ret < 0) {
		dev_err(arizona->dev, "extcon_dev_regster() failed: %d\n",
			ret);
		goto err;
	}

	if (pdata->num_micd_configs) {
		info->micd_modes = pdata->micd_configs;
		info->micd_num_modes = pdata->num_micd_configs;
	} else {
		info->micd_modes = micd_default_modes;
		info->micd_num_modes = ARRAY_SIZE(micd_default_modes);
	}

	if (arizona->pdata.micd_pol_gpio > 0) {
		if (info->micd_modes[0].gpio)
			mode = GPIOF_OUT_INIT_HIGH;
		else
			mode = GPIOF_OUT_INIT_LOW;

		ret = devm_gpio_request_one(&pdev->dev,
					    arizona->pdata.micd_pol_gpio,
					    mode,
					    "MICD polarity");
		if (ret != 0) {
			dev_err(arizona->dev, "Failed to request GPIO%d: %d\n",
				arizona->pdata.micd_pol_gpio, ret);
			goto err_register;
		}
	}

	arizona_extcon_set_mode(info, 0);

	pm_runtime_enable(&pdev->dev);
	pm_runtime_idle(&pdev->dev);
	pm_runtime_get_sync(&pdev->dev);

	ret = arizona_request_irq(arizona, ARIZONA_IRQ_JD_RISE,
				  "JACKDET rise", arizona_jackdet, info);
	if (ret != 0) {
		dev_err(&pdev->dev, "Failed to get JACKDET rise IRQ: %d\n",
			ret);
		goto err_register;
	}

	ret = arizona_set_irq_wake(arizona, ARIZONA_IRQ_JD_RISE, 1);
	if (ret != 0) {
		dev_err(&pdev->dev, "Failed to set JD rise IRQ wake: %d\n",
			ret);
		goto err_rise;
	}

	ret = arizona_request_irq(arizona, ARIZONA_IRQ_JD_FALL,
				  "JACKDET fall", arizona_jackdet, info);
	if (ret != 0) {
		dev_err(&pdev->dev, "Failed to get JD fall IRQ: %d\n", ret);
		goto err_rise_wake;
	}

	ret = arizona_set_irq_wake(arizona, ARIZONA_IRQ_JD_FALL, 1);
	if (ret != 0) {
		dev_err(&pdev->dev, "Failed to set JD fall IRQ wake: %d\n",
			ret);
		goto err_fall;
	}

	ret = arizona_request_irq(arizona, ARIZONA_IRQ_MICDET,
				  "MICDET", arizona_micdet, info);
	if (ret != 0) {
		dev_err(&pdev->dev, "Failed to get MICDET IRQ: %d\n", ret);
		goto err_fall_wake;
	}

	regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1,
			   ARIZONA_MICD_BIAS_STARTTIME_MASK |
			   ARIZONA_MICD_RATE_MASK,
			   7 << ARIZONA_MICD_BIAS_STARTTIME_SHIFT |
			   8 << ARIZONA_MICD_RATE_SHIFT);

	arizona_clk32k_enable(arizona);
	regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_DEBOUNCE,
			   ARIZONA_JD1_DB, ARIZONA_JD1_DB);
	regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE,
			   ARIZONA_JD1_ENA, ARIZONA_JD1_ENA);

	pm_runtime_put(&pdev->dev);

	return 0;

err_fall_wake:
	arizona_set_irq_wake(arizona, ARIZONA_IRQ_JD_FALL, 0);
err_fall:
	arizona_free_irq(arizona, ARIZONA_IRQ_JD_FALL, info);
err_rise_wake:
	arizona_set_irq_wake(arizona, ARIZONA_IRQ_JD_RISE, 0);
err_rise:
	arizona_free_irq(arizona, ARIZONA_IRQ_JD_RISE, info);
err_register:
	pm_runtime_disable(&pdev->dev);
	extcon_dev_unregister(&info->edev);
err:
	return ret;
}