Exemple #1
0
static void *ipq806x_gmac_of_parse(struct ipq806x_gmac *gmac)
{
	struct device *dev = &gmac->pdev->dev;

	gmac->phy_mode = of_get_phy_mode(dev->of_node);
	if (gmac->phy_mode < 0) {
		dev_err(dev, "missing phy mode property\n");
		return ERR_PTR(-EINVAL);
	}

	if (of_property_read_u32(dev->of_node, "qcom,id", &gmac->id) < 0) {
		dev_err(dev, "missing qcom id property\n");
		return ERR_PTR(-EINVAL);
	}

	/* The GMACs are called 1 to 4 in the documentation, but to simplify the
	 * code and keep it consistent with the Linux convention, we'll number
	 * them from 0 to 3 here.
	 */
	if (gmac->id < 0 || gmac->id > 3) {
		dev_err(dev, "invalid gmac id\n");
		return ERR_PTR(-EINVAL);
	}

	gmac->core_clk = devm_clk_get(dev, "stmmaceth");
	if (IS_ERR(gmac->core_clk)) {
		dev_err(dev, "missing stmmaceth clk property\n");
		return gmac->core_clk;
	}
	clk_set_rate(gmac->core_clk, 266000000);

	/* Setup the register map for the nss common registers */
	gmac->nss_common = syscon_regmap_lookup_by_phandle(dev->of_node,
							   "qcom,nss-common");
	if (IS_ERR(gmac->nss_common)) {
		dev_err(dev, "missing nss-common node\n");
		return gmac->nss_common;
	}

	/* Setup the register map for the qsgmii csr registers */
	gmac->qsgmii_csr = syscon_regmap_lookup_by_phandle(dev->of_node,
							   "qcom,qsgmii-csr");
	if (IS_ERR(gmac->qsgmii_csr)) {
		dev_err(dev, "missing qsgmii-csr node\n");
		return gmac->qsgmii_csr;
	}

	return NULL;
}
Exemple #2
0
static int usb_wakeup_of_property_parse(struct xhci_hcd_mtk *mtk,
				struct device_node *dn)
{
	struct device *dev = mtk->dev;

	/*
	* wakeup function is optional, so it is not an error if this property
	* does not exist, and in such case, no need to get relative
	* properties anymore.
	*/
	of_property_read_u32(dn, "mediatek,wakeup-src", &mtk->wakeup_src);
	if (!mtk->wakeup_src)
		return 0;

	mtk->wk_deb_p0 = devm_clk_get(dev, "wakeup_deb_p0");
	if (IS_ERR(mtk->wk_deb_p0)) {
		dev_err(dev, "fail to get wakeup_deb_p0\n");
		return PTR_ERR(mtk->wk_deb_p0);
	}

	mtk->wk_deb_p1 = devm_clk_get(dev, "wakeup_deb_p1");
	if (IS_ERR(mtk->wk_deb_p1)) {
		dev_err(dev, "fail to get wakeup_deb_p1\n");
		return PTR_ERR(mtk->wk_deb_p1);
	}

	mtk->pericfg = syscon_regmap_lookup_by_phandle(dn,
						"mediatek,syscon-wakeup");
	if (IS_ERR(mtk->pericfg)) {
		dev_err(dev, "fail to get pericfg regs\n");
		return PTR_ERR(mtk->pericfg);
	}

	return 0;
}
Exemple #3
0
static int exynos_dp_video_phy_probe(struct platform_device *pdev)
{
	struct exynos_dp_video_phy *state;
	struct device *dev = &pdev->dev;
	const struct of_device_id *match;
	struct phy_provider *phy_provider;
	struct phy *phy;

	state = devm_kzalloc(dev, sizeof(*state), GFP_KERNEL);
	if (!state)
		return -ENOMEM;

	state->regs = syscon_regmap_lookup_by_phandle(dev->of_node,
						      "samsung,pmu-syscon");
	if (IS_ERR(state->regs)) {
		dev_err(dev, "Failed to lookup PMU regmap\n");
		return PTR_ERR(state->regs);
	}

	match = of_match_node(exynos_dp_video_phy_of_match, dev->of_node);
	state->drvdata = match->data;

	phy = devm_phy_create(dev, NULL, &exynos_dp_video_phy_ops);
	if (IS_ERR(phy)) {
		dev_err(dev, "failed to create Display Port PHY\n");
		return PTR_ERR(phy);
	}
	phy_set_drvdata(phy, state);

	phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);

	return PTR_ERR_OR_ZERO(phy_provider);
}
Exemple #4
0
static int spear1340_miphy_probe(struct platform_device *pdev)
{
	struct device *dev = &pdev->dev;
	struct spear1340_miphy_priv *priv;
	struct phy_provider *phy_provider;

	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
	if (!priv)
		return -ENOMEM;

	priv->misc =
		syscon_regmap_lookup_by_phandle(dev->of_node, "misc");
	if (IS_ERR(priv->misc)) {
		dev_err(dev, "failed to find misc regmap\n");
		return PTR_ERR(priv->misc);
	}

	priv->phy = devm_phy_create(dev, NULL, &spear1340_miphy_ops);
	if (IS_ERR(priv->phy)) {
		dev_err(dev, "failed to create SATA PCIe PHY\n");
		return PTR_ERR(priv->phy);
	}

	dev_set_drvdata(dev, priv);
	phy_set_drvdata(priv->phy, priv);

	phy_provider =
		devm_of_phy_provider_register(dev, spear1340_miphy_xlate);
	if (IS_ERR(phy_provider)) {
		dev_err(dev, "failed to register phy provider\n");
		return PTR_ERR(phy_provider);
	}

	return 0;
}
Exemple #5
0
static int stm32_dwmac_parse_data(struct stm32_dwmac *dwmac,
				  struct device *dev)
{
	struct device_node *np = dev->of_node;
	int err;

	/*  Get TX/RX clocks */
	dwmac->clk_tx = devm_clk_get(dev, "mac-clk-tx");
	if (IS_ERR(dwmac->clk_tx)) {
		dev_err(dev, "No tx clock provided...\n");
		return PTR_ERR(dwmac->clk_tx);
	}
	dwmac->clk_rx = devm_clk_get(dev, "mac-clk-rx");
	if (IS_ERR(dwmac->clk_rx)) {
		dev_err(dev, "No rx clock provided...\n");
		return PTR_ERR(dwmac->clk_rx);
	}

	/* Get mode register */
	dwmac->regmap = syscon_regmap_lookup_by_phandle(np, "st,syscon");
	if (IS_ERR(dwmac->regmap))
		return PTR_ERR(dwmac->regmap);

	err = of_property_read_u32_index(np, "st,syscon", 1, &dwmac->mode_reg);
	if (err)
		dev_err(dev, "Can't get sysconfig mode offset (%d)\n", err);

	return err;
}
Exemple #6
0
static int hix5hd2_sata_phy_probe(struct platform_device *pdev)
{
	struct phy_provider *phy_provider;
	struct device *dev = &pdev->dev;
	struct resource *res;
	struct phy *phy;
	struct hix5hd2_priv *priv;

	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
	if (!priv)
		return -ENOMEM;

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	if (!res)
		return -EINVAL;

	priv->base = devm_ioremap(dev, res->start, resource_size(res));
	if (!priv->base)
		return -ENOMEM;

	priv->peri_ctrl = syscon_regmap_lookup_by_phandle(dev->of_node,
					"hisilicon,peripheral-syscon");
	if (IS_ERR(priv->peri_ctrl))
		priv->peri_ctrl = NULL;

	phy = devm_phy_create(dev, NULL, &hix5hd2_sata_phy_ops);
	if (IS_ERR(phy)) {
		dev_err(dev, "failed to create PHY\n");
		return PTR_ERR(phy);
	}

	phy_set_drvdata(phy, priv);
	phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
	return PTR_ERR_OR_ZERO(phy_provider);
}
static int rockchip_hdmi_parse_dt(struct rockchip_hdmi *hdmi)
{
	struct device_node *np = hdmi->dev->of_node;

	hdmi->regmap = syscon_regmap_lookup_by_phandle(np, "rockchip,grf");
	if (IS_ERR(hdmi->regmap)) {
		DRM_DEV_ERROR(hdmi->dev, "Unable to get rockchip,grf\n");
		return PTR_ERR(hdmi->regmap);
	}

	hdmi->vpll_clk = devm_clk_get(hdmi->dev, "vpll");
	if (PTR_ERR(hdmi->vpll_clk) == -ENOENT) {
		hdmi->vpll_clk = NULL;
	} else if (PTR_ERR(hdmi->vpll_clk) == -EPROBE_DEFER) {
		return -EPROBE_DEFER;
	} else if (IS_ERR(hdmi->vpll_clk)) {
		DRM_DEV_ERROR(hdmi->dev, "failed to get grf clock\n");
		return PTR_ERR(hdmi->vpll_clk);
	}

	hdmi->grf_clk = devm_clk_get(hdmi->dev, "grf");
	if (PTR_ERR(hdmi->grf_clk) == -ENOENT) {
		hdmi->grf_clk = NULL;
	} else if (PTR_ERR(hdmi->grf_clk) == -EPROBE_DEFER) {
		return -EPROBE_DEFER;
	} else if (IS_ERR(hdmi->grf_clk)) {
		DRM_DEV_ERROR(hdmi->dev, "failed to get grf clock\n");
		return PTR_ERR(hdmi->grf_clk);
	}

	return 0;
}
Exemple #8
0
static int uni_player_parse_dt_audio_glue(struct platform_device *pdev,
					  struct uniperif *player)
{
	struct device_node *node = pdev->dev.of_node;
	struct regmap *regmap;
	struct reg_field regfield[2] = {
		/* PCM_CLK_SEL */
		REG_FIELD(SYS_CFG_AUDIO_GLUE,
			  8 + player->id,
			  8 + player->id),
		/* PCMP_VALID_SEL */
		REG_FIELD(SYS_CFG_AUDIO_GLUE, 0, 1)
	};

	regmap = syscon_regmap_lookup_by_phandle(node, "st,syscfg");

	if (IS_ERR(regmap)) {
		dev_err(&pdev->dev, "sti-audio-clk-glue syscf not found\n");
		return PTR_ERR(regmap);
	}

	player->clk_sel = regmap_field_alloc(regmap, regfield[0]);
	player->valid_sel = regmap_field_alloc(regmap, regfield[1]);

	return 0;
}
int of_flash_probe_gemini(struct platform_device *pdev,
			  struct device_node *np,
			  struct map_info *map)
{
	static struct regmap *rmap;
	struct device *dev = &pdev->dev;
	u32 val;
	int ret;

	/* Multiplatform guard */
	if (!of_device_is_compatible(np, "cortina,gemini-flash"))
		return 0;

	rmap = syscon_regmap_lookup_by_phandle(np, "syscon");
	if (IS_ERR(rmap)) {
		dev_err(dev, "no syscon\n");
		return PTR_ERR(rmap);
	}

	ret = regmap_read(rmap, GLOBAL_STATUS, &val);
	if (ret) {
		dev_err(dev, "failed to read global status register\n");
		return -ENODEV;
	}
	dev_dbg(dev, "global status reg: %08x\n", val);

	/*
	 * It would be contradictory if a physmap flash was NOT parallel.
	 */
	if ((val & FLASH_TYPE_MASK) != FLASH_TYPE_PARALLEL) {
		dev_err(dev, "flash is not parallel\n");
		return -ENODEV;
	}

	/*
	 * Complain if DT data and hardware definition is different.
	 */
	if (val & FLASH_WIDTH_16BIT) {
		if (map->bankwidth != 2)
			dev_warn(dev, "flash hardware say flash is 16 bit wide but DT says it is %d bits wide\n",
				 map->bankwidth * 8);
	} else {
		if (map->bankwidth != 1)
			dev_warn(dev, "flash hardware say flash is 8 bit wide but DT says it is %d bits wide\n",
				 map->bankwidth * 8);
	}

	/* Activate parallel (NOR flash) mode */
	ret = regmap_update_bits(rmap, GLOBAL_MISC_CTRL,
				 FLASH_PADS_MASK,
				 SFLASH_PADS_DISABLE | NAND_PADS_DISABLE);
	if (ret) {
		dev_err(dev, "unable to set up physmap pads\n");
		return -ENODEV;
	}

	dev_info(&pdev->dev, "initialized Gemini-specific physmap control\n");

	return 0;
}
Exemple #10
0
static int keystone_rproc_of_get_dev_syscon(struct platform_device *pdev,
					    struct keystone_rproc *ksproc)
{
	struct device_node *np = pdev->dev.of_node;
	struct device *dev = &pdev->dev;
	int ret;

	if (!of_property_read_bool(np, "ti,syscon-dev")) {
		dev_err(dev, "ti,syscon-dev property is absent\n");
		return -EINVAL;
	}

	ksproc->dev_ctrl =
		syscon_regmap_lookup_by_phandle(np, "ti,syscon-dev");
	if (IS_ERR(ksproc->dev_ctrl)) {
		ret = PTR_ERR(ksproc->dev_ctrl);
		return ret;
	}

	if (of_property_read_u32_index(np, "ti,syscon-dev", 1,
				       &ksproc->boot_offset)) {
		dev_err(dev, "couldn't read the boot register offset\n");
		return -EINVAL;
	}

	return 0;
}
static int __init rockchip_ddr_probe(struct platform_device *pdev)
{
	struct device_node *np;

	np = pdev->dev.of_node;
	ddr_data =
	    devm_kzalloc(&pdev->dev, sizeof(struct rockchip_ddr), GFP_KERNEL);
	if (!ddr_data) {
		dev_err(&pdev->dev, "no memory for state\n");
		return -ENOMEM;
	}
	/* ddrpctl */
	ddr_data->ddrpctl_regs =
	    syscon_regmap_lookup_by_phandle(np, "rockchip,ddrpctl");
	if (IS_ERR(ddr_data->ddrpctl_regs)) {
		dev_err(&pdev->dev, "%s: could not find ddrpctl dt node\n",
			__func__);
		return -ENXIO;
	}

	/* grf */
	ddr_data->grf_regs =
	    syscon_regmap_lookup_by_phandle(np, "rockchip,grf");
	if (IS_ERR(ddr_data->grf_regs)) {
		dev_err(&pdev->dev, "%s: could not find grf dt node\n",
			__func__);
		return -ENXIO;
	}
	/* msch */
	ddr_data->msch_regs =
	    syscon_regmap_lookup_by_phandle(np, "rockchip,msch");
	if (IS_ERR(ddr_data->msch_regs)) {
		dev_err(&pdev->dev, "%s: could not find msch dt node\n",
			__func__);
		return -ENXIO;
	}

	platform_set_drvdata(pdev, ddr_data);
	ddr_change_freq = _ddr_change_freq;
	ddr_round_rate = _ddr_round_rate;
	ddr_set_auto_self_refresh = _ddr_set_auto_self_refresh;
	ddr_bandwidth_get = _ddr_bandwidth_get;
	ddr_recalc_rate = _ddr_recalc_rate;
	ddr_init(DDR3_DEFAULT, 0);
	pr_info("%s: success\n", __func__);
	return 0;
}
Exemple #12
0
static int gswip_gphy_fw_list(struct gswip_priv *priv,
			      struct device_node *gphy_fw_list_np, u32 version)
{
	struct device *dev = priv->dev;
	struct device_node *gphy_fw_np;
	const struct of_device_id *match;
	int err;
	int i = 0;

	/* The VRX200 rev 1.1 uses the GSWIP 2.0 and needs the older
	 * GPHY firmware. The VRX200 rev 1.2 uses the GSWIP 2.1 and also
	 * needs a different GPHY firmware.
	 */
	if (of_device_is_compatible(gphy_fw_list_np, "lantiq,xrx200-gphy-fw")) {
		switch (version) {
		case GSWIP_VERSION_2_0:
			priv->gphy_fw_name_cfg = &xrx200a1x_gphy_data;
			break;
		case GSWIP_VERSION_2_1:
			priv->gphy_fw_name_cfg = &xrx200a2x_gphy_data;
			break;
		default:
			dev_err(dev, "unknown GSWIP version: 0x%x", version);
			return -ENOENT;
		}
	}

	match = of_match_node(xway_gphy_match, gphy_fw_list_np);
	if (match && match->data)
		priv->gphy_fw_name_cfg = match->data;

	if (!priv->gphy_fw_name_cfg) {
		dev_err(dev, "GPHY compatible type not supported");
		return -ENOENT;
	}

	priv->num_gphy_fw = of_get_available_child_count(gphy_fw_list_np);
	if (!priv->num_gphy_fw)
		return -ENOENT;

	priv->rcu_regmap = syscon_regmap_lookup_by_phandle(gphy_fw_list_np,
							   "lantiq,rcu");
	if (IS_ERR(priv->rcu_regmap))
		return PTR_ERR(priv->rcu_regmap);

	priv->gphy_fw = devm_kmalloc_array(dev, priv->num_gphy_fw,
					   sizeof(*priv->gphy_fw),
					   GFP_KERNEL | __GFP_ZERO);
	if (!priv->gphy_fw)
		return -ENOMEM;

	for_each_available_child_of_node(gphy_fw_list_np, gphy_fw_np) {
		err = gswip_gphy_fw_probe(priv, &priv->gphy_fw[i],
					  gphy_fw_np, i);
		if (err)
			goto remove_gphy;
		i++;
	}
Exemple #13
0
static int syscon_gpio_probe(struct platform_device *pdev)
{
	struct device *dev = &pdev->dev;
	const struct of_device_id *of_id;
	struct syscon_gpio_priv *priv;
	struct device_node *np = dev->of_node;
	int ret;

	of_id = of_match_device(syscon_gpio_ids, dev);
	if (!of_id)
		return -ENODEV;

	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
	if (!priv)
		return -ENOMEM;

	priv->data = of_id->data;

	if (priv->data->compatible) {
		priv->syscon = syscon_regmap_lookup_by_compatible(
					priv->data->compatible);
		if (IS_ERR(priv->syscon))
			return PTR_ERR(priv->syscon);
	} else {
		priv->syscon =
			syscon_regmap_lookup_by_phandle(np, "gpio,syscon-dev");
		if (IS_ERR(priv->syscon))
			return PTR_ERR(priv->syscon);

		ret = of_property_read_u32_index(np, "gpio,syscon-dev", 1,
						 &priv->dreg_offset);
		if (ret)
			dev_err(dev, "can't read the data register offset!\n");

		priv->dreg_offset <<= 3;

		ret = of_property_read_u32_index(np, "gpio,syscon-dev", 2,
						 &priv->dir_reg_offset);
		if (ret)
			dev_dbg(dev, "can't read the dir register offset!\n");

		priv->dir_reg_offset <<= 3;
	}

	priv->chip.parent = dev;
	priv->chip.owner = THIS_MODULE;
	priv->chip.label = dev_name(dev);
	priv->chip.base = -1;
	priv->chip.ngpio = priv->data->bit_count;
	priv->chip.get = syscon_gpio_get;
	if (priv->data->flags & GPIO_SYSCON_FEAT_IN)
		priv->chip.direction_input = syscon_gpio_dir_in;
	if (priv->data->flags & GPIO_SYSCON_FEAT_OUT) {
		priv->chip.set = priv->data->set ? : syscon_gpio_set;
		priv->chip.direction_output = syscon_gpio_dir_out;
	}
Exemple #14
0
static int ks_sa_rng_probe(struct platform_device *pdev)
{
	struct ks_sa_rng	*ks_sa_rng;
	struct device		*dev = &pdev->dev;
	int			ret;
	struct resource		*mem;

	ks_sa_rng = devm_kzalloc(dev, sizeof(*ks_sa_rng), GFP_KERNEL);
	if (!ks_sa_rng)
		return -ENOMEM;

	ks_sa_rng->dev = dev;
	ks_sa_rng->rng = (struct hwrng) {
		.name = "ks_sa_hwrng",
		.init = ks_sa_rng_init,
		.data_read = ks_sa_rng_data_read,
		.data_present = ks_sa_rng_data_present,
		.cleanup = ks_sa_rng_cleanup,
	};
	ks_sa_rng->rng.priv = (unsigned long)dev;

	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	ks_sa_rng->reg_rng = devm_ioremap_resource(dev, mem);
	if (IS_ERR(ks_sa_rng->reg_rng))
		return PTR_ERR(ks_sa_rng->reg_rng);

	ks_sa_rng->regmap_cfg =
		syscon_regmap_lookup_by_phandle(dev->of_node,
						"ti,syscon-sa-cfg");

	if (IS_ERR(ks_sa_rng->regmap_cfg)) {
		dev_err(dev, "syscon_node_to_regmap failed\n");
		return -EINVAL;
	}

	pm_runtime_enable(dev);
	ret = pm_runtime_get_sync(dev);
	if (ret < 0) {
		dev_err(dev, "Failed to enable SA power-domain\n");
		pm_runtime_disable(dev);
		return ret;
	}

	platform_set_drvdata(pdev, ks_sa_rng);

	return devm_hwrng_register(&pdev->dev, &ks_sa_rng->rng);
}

static int ks_sa_rng_remove(struct platform_device *pdev)
{
	pm_runtime_put_sync(&pdev->dev);
	pm_runtime_disable(&pdev->dev);

	return 0;
}
Exemple #15
0
static int dw_hdmi_imx_parse_dt(struct imx_hdmi *hdmi)
{
	struct device_node *np = hdmi->dev->of_node;

	hdmi->regmap = syscon_regmap_lookup_by_phandle(np, "gpr");
	if (IS_ERR(hdmi->regmap)) {
		dev_err(hdmi->dev, "Unable to get gpr\n");
		return PTR_ERR(hdmi->regmap);
	}

	return 0;
}
Exemple #16
0
static int __init vf610_mscm_ir_of_init(struct device_node *node,
			       struct device_node *parent)
{
	struct irq_domain *domain, *domain_parent;
	struct regmap *mscm_cp_regmap;
	int ret, cpuid;

	domain_parent = irq_find_host(parent);
	if (!domain_parent) {
		pr_err("vf610_mscm_ir: interrupt-parent not found\n");
		return -EINVAL;
	}

	mscm_ir_data = kzalloc(sizeof(*mscm_ir_data), GFP_KERNEL);
	if (!mscm_ir_data)
		return -ENOMEM;

	mscm_ir_data->mscm_ir_base = of_io_request_and_map(node, 0, "mscm-ir");

	if (!mscm_ir_data->mscm_ir_base) {
		pr_err("vf610_mscm_ir: unable to map mscm register\n");
		ret = -ENOMEM;
		goto out_free;
	}

	mscm_cp_regmap = syscon_regmap_lookup_by_phandle(node, "fsl,cpucfg");
	if (IS_ERR(mscm_cp_regmap)) {
		ret = PTR_ERR(mscm_cp_regmap);
		pr_err("vf610_mscm_ir: regmap lookup for cpucfg failed\n");
		goto out_unmap;
	}

	regmap_read(mscm_cp_regmap, MSCM_CPxNUM, &cpuid);
	mscm_ir_data->cpu_mask = 0x1 << cpuid;

	domain = irq_domain_add_hierarchy(domain_parent, 0,
					  MSCM_IRSPRC_NUM, node,
					  &mscm_irq_domain_ops, mscm_ir_data);
	if (!domain) {
		ret = -ENOMEM;
		goto out_unmap;
	}

	cpu_pm_register_notifier(&mscm_ir_notifier_block);

	return 0;

out_unmap:
	iounmap(mscm_ir_data->mscm_ir_base);
out_free:
	kfree(mscm_ir_data);
	return ret;
}
Exemple #17
0
static int rockchip_mipi_parse_dt(struct dw_mipi_dsi *dsi)
{
	struct device_node *np = dsi->dev->of_node;

	dsi->grf_regmap = syscon_regmap_lookup_by_phandle(np, "rockchip,grf");
	if (IS_ERR(dsi->grf_regmap)) {
		dev_err(dsi->dev, "Unable to get rockchip,grf\n");
		return PTR_ERR(dsi->grf_regmap);
	}

	return 0;
}
Exemple #18
0
static int socfpga_dwmac_parse_data(struct socfpga_dwmac *dwmac, struct device *dev)
{
	struct device_node *np = dev->of_node;
	struct regmap *sys_mgr_base_addr;
	u32 reg_offset, reg_shift;
	int ret;
	struct device_node *np_splitter;
	struct resource res_splitter;

	dwmac->interface = of_get_phy_mode(np);

	sys_mgr_base_addr = syscon_regmap_lookup_by_phandle(np, "altr,sysmgr-syscon");
	if (IS_ERR(sys_mgr_base_addr)) {
		dev_info(dev, "No sysmgr-syscon node found\n");
		return PTR_ERR(sys_mgr_base_addr);
	}

	ret = of_property_read_u32_index(np, "altr,sysmgr-syscon", 1, &reg_offset);
	if (ret) {
		dev_info(dev, "Could not read reg_offset from sysmgr-syscon!\n");
		return -EINVAL;
	}

	ret = of_property_read_u32_index(np, "altr,sysmgr-syscon", 2, &reg_shift);
	if (ret) {
		dev_info(dev, "Could not read reg_shift from sysmgr-syscon!\n");
		return -EINVAL;
	}

	dwmac->f2h_ptp_ref_clk = of_property_read_bool(np, "altr,f2h_ptp_ref_clk");

	np_splitter = of_parse_phandle(np, "altr,emac-splitter", 0);
	if (np_splitter) {
		if (of_address_to_resource(np_splitter, 0, &res_splitter)) {
			dev_info(dev, "Missing emac splitter address\n");
			return -EINVAL;
		}

		dwmac->splitter_base = devm_ioremap_resource(dev, &res_splitter);
		if (IS_ERR(dwmac->splitter_base)) {
			dev_info(dev, "Failed to mapping emac splitter\n");
			return PTR_ERR(dwmac->splitter_base);
		}
	}

	dwmac->reg_offset = reg_offset;
	dwmac->reg_shift = reg_shift;
	dwmac->sys_mgr_base_addr = sys_mgr_base_addr;
	dwmac->dev = dev;

	return 0;
}
Exemple #19
0
static int ade_dts_parse(struct platform_device *pdev, struct ade_hw_ctx *ctx)
{
	struct resource *res;
	struct device *dev = &pdev->dev;
	struct device_node *np = pdev->dev.of_node;

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	ctx->base = devm_ioremap_resource(dev, res);
	if (IS_ERR(ctx->base)) {
		DRM_ERROR("failed to remap ade io base\n");
		return  PTR_ERR(ctx->base);
	}

	ctx->reset = devm_reset_control_get(dev, NULL);
	if (IS_ERR(ctx->reset))
		return PTR_ERR(ctx->reset);

	ctx->noc_regmap =
		syscon_regmap_lookup_by_phandle(np, "hisilicon,noc-syscon");
	if (IS_ERR(ctx->noc_regmap)) {
		DRM_ERROR("failed to get noc regmap\n");
		return PTR_ERR(ctx->noc_regmap);
	}

	ctx->irq = platform_get_irq(pdev, 0);
	if (ctx->irq < 0) {
		DRM_ERROR("failed to get irq\n");
		return -ENODEV;
	}

	ctx->ade_core_clk = devm_clk_get(dev, "clk_ade_core");
	if (IS_ERR(ctx->ade_core_clk)) {
		DRM_ERROR("failed to parse clk ADE_CORE\n");
		return PTR_ERR(ctx->ade_core_clk);
	}

	ctx->media_noc_clk = devm_clk_get(dev, "clk_codec_jpeg");
	if (IS_ERR(ctx->media_noc_clk)) {
		DRM_ERROR("failed to parse clk CODEC_JPEG\n");
		return PTR_ERR(ctx->media_noc_clk);
	}

	ctx->ade_pix_clk = devm_clk_get(dev, "clk_ade_pix");
	if (IS_ERR(ctx->ade_pix_clk)) {
		DRM_ERROR("failed to parse clk ADE_PIX\n");
		return PTR_ERR(ctx->ade_pix_clk);
	}

	return 0;
}
Exemple #20
0
static int rockchip_dp_init(struct rockchip_dp_device *dp)
{
	struct device *dev = dp->dev;
	struct device_node *np = dev->of_node;
	int ret;

	dp->grf = syscon_regmap_lookup_by_phandle(np, "rockchip,grf");
	if (IS_ERR(dp->grf)) {
		dev_err(dev, "failed to get rockchip,grf property\n");
		return PTR_ERR(dp->grf);
	}

	dp->grfclk = devm_clk_get(dev, "grf");
	if (PTR_ERR(dp->grfclk) == -ENOENT) {
		dp->grfclk = NULL;
	} else if (PTR_ERR(dp->grfclk) == -EPROBE_DEFER) {
		return -EPROBE_DEFER;
	} else if (IS_ERR(dp->grfclk)) {
		dev_err(dev, "failed to get grf clock\n");
		return PTR_ERR(dp->grfclk);
	}

	dp->pclk = devm_clk_get(dev, "pclk");
	if (IS_ERR(dp->pclk)) {
		dev_err(dev, "failed to get pclk property\n");
		return PTR_ERR(dp->pclk);
	}

	dp->rst = devm_reset_control_get(dev, "dp");
	if (IS_ERR(dp->rst)) {
		dev_err(dev, "failed to get dp reset control\n");
		return PTR_ERR(dp->rst);
	}

	ret = clk_prepare_enable(dp->pclk);
	if (ret < 0) {
		dev_err(dp->dev, "failed to enable pclk %d\n", ret);
		return ret;
	}

	ret = rockchip_dp_pre_init(dp);
	if (ret < 0) {
		dev_err(dp->dev, "failed to pre init %d\n", ret);
		clk_disable_unprepare(dp->pclk);
		return ret;
	}

	return 0;
}
Exemple #21
0
static int ti_cpufreq_setup_syscon_register(struct ti_cpufreq_data *opp_data)
{
	struct device *dev = opp_data->cpu_dev;
	struct device_node *np = opp_data->opp_node;

	opp_data->syscon = syscon_regmap_lookup_by_phandle(np,
							"syscon");
	if (IS_ERR(opp_data->syscon)) {
		dev_err(dev,
			"\"syscon\" is missing, cannot use OPPv2 table.\n");
		return PTR_ERR(opp_data->syscon);
	}

	return 0;
}
Exemple #22
0
static int __init digicolor_of_init(struct device_node *node,
				struct device_node *parent)
{
	static void __iomem *reg_base;
	unsigned int clr = IRQ_NOREQUEST | IRQ_NOPROBE | IRQ_NOAUTOEN;
	struct regmap *ucregs;
	int ret;

	reg_base = of_iomap(node, 0);
	if (!reg_base) {
		pr_err("%s: unable to map IC registers\n", node->full_name);
		return -ENXIO;
	}

	/* disable all interrupts */
	writel(0, reg_base + IC_INT0ENABLE_LO);
	writel(0, reg_base + IC_INT0ENABLE_XLO);

	ucregs = syscon_regmap_lookup_by_phandle(node, "syscon");
	if (IS_ERR(ucregs)) {
		pr_err("%s: unable to map UC registers\n", node->full_name);
		return PTR_ERR(ucregs);
	}
	/* channel 1, regular IRQs */
	regmap_write(ucregs, UC_IRQ_CONTROL, 1);

	digicolor_irq_domain =
		irq_domain_add_linear(node, 64, &irq_generic_chip_ops, NULL);
	if (!digicolor_irq_domain) {
		pr_err("%s: unable to create IRQ domain\n", node->full_name);
		return -ENOMEM;
	}

	ret = irq_alloc_domain_generic_chips(digicolor_irq_domain, 32, 1,
					     "digicolor_irq", handle_level_irq,
					     clr, 0, 0);
	if (ret) {
		pr_err("%s: unable to allocate IRQ gc\n", node->full_name);
		return ret;
	}

	digicolor_set_gc(reg_base, 0, IC_INT0ENABLE_LO, IC_FLAG_CLEAR_LO);
	digicolor_set_gc(reg_base, 32, IC_INT0ENABLE_XLO, IC_FLAG_CLEAR_XLO);

	set_handle_irq(digicolor_handle_irq);

	return 0;
}
Exemple #23
0
static int hi6210_i2s_probe(struct platform_device *pdev)
{
	struct device_node *node = pdev->dev.of_node;
	struct device *dev = &pdev->dev;
	struct hi6210_i2s *i2s;
	struct resource *res;
	int ret;

	i2s = devm_kzalloc(&pdev->dev, sizeof(*i2s), GFP_KERNEL);
	if (!i2s)
		return -ENOMEM;

	i2s->dev = dev;
	spin_lock_init(&i2s->lock);

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	i2s->base = devm_ioremap_resource(dev, res);
	if (IS_ERR(i2s->base))
		return PTR_ERR(i2s->base);

	i2s->base_phys = (phys_addr_t)res->start;
	i2s->dai = hi6210_i2s_dai_init;

	dev_set_drvdata(&pdev->dev, i2s);

	i2s->sysctrl = syscon_regmap_lookup_by_phandle(node,
						"hisilicon,sysctrl-syscon");
	if (IS_ERR(i2s->sysctrl))
		return PTR_ERR(i2s->sysctrl);

	i2s->clk[CLK_DACODEC] = devm_clk_get(&pdev->dev, "dacodec");
	if (IS_ERR_OR_NULL(i2s->clk[CLK_DACODEC]))
		return PTR_ERR(i2s->clk[CLK_DACODEC]);
	i2s->clocks++;

	i2s->clk[CLK_I2S_BASE] = devm_clk_get(&pdev->dev, "i2s-base");
	if (IS_ERR_OR_NULL(i2s->clk[CLK_I2S_BASE]))
		return PTR_ERR(i2s->clk[CLK_I2S_BASE]);
	i2s->clocks++;

	ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
	if (ret)
		return ret;

	ret = devm_snd_soc_register_component(&pdev->dev, &hi6210_i2s_i2s_comp,
					 &i2s->dai, 1);
	return ret;
}
static int uniphier_pciephy_probe(struct platform_device *pdev)
{
	struct uniphier_pciephy_priv *priv;
	struct phy_provider *phy_provider;
	struct device *dev = &pdev->dev;
	struct regmap *regmap;
	struct resource *res;
	struct phy *phy;

	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
	if (!priv)
		return -ENOMEM;

	priv->data = of_device_get_match_data(dev);
	if (WARN_ON(!priv->data))
		return -EINVAL;

	priv->dev = dev;

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	priv->base = devm_ioremap_resource(dev, res);
	if (IS_ERR(priv->base))
		return PTR_ERR(priv->base);

	priv->clk = devm_clk_get(dev, NULL);
	if (IS_ERR(priv->clk))
		return PTR_ERR(priv->clk);

	priv->rst = devm_reset_control_get_shared(dev, NULL);
	if (IS_ERR(priv->rst))
		return PTR_ERR(priv->rst);

	phy = devm_phy_create(dev, dev->of_node, &uniphier_pciephy_ops);
	if (IS_ERR(phy))
		return PTR_ERR(phy);

	regmap = syscon_regmap_lookup_by_phandle(dev->of_node,
						 "socionext,syscon");
	if (!IS_ERR(regmap) && priv->data->has_syscon)
		regmap_update_bits(regmap, SG_USBPCIESEL,
				   SG_USBPCIESEL_PCIE, SG_USBPCIESEL_PCIE);

	phy_set_drvdata(phy, priv);
	phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);

	return PTR_ERR_OR_ZERO(phy_provider);
}
Exemple #25
0
static int exynos_mipi_video_phy_probe(struct platform_device *pdev)
{
	struct exynos_mipi_video_phy *state;
	struct device *dev = &pdev->dev;
	struct phy_provider *phy_provider;
	unsigned int i;

	state = devm_kzalloc(dev, sizeof(*state), GFP_KERNEL);
	if (!state)
		return -ENOMEM;

	state->regmap = syscon_regmap_lookup_by_phandle(dev->of_node, "syscon");
	if (IS_ERR(state->regmap)) {
		struct resource *res;

		dev_info(dev, "regmap lookup failed: %ld\n",
			 PTR_ERR(state->regmap));

		res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
		state->regs = devm_ioremap_resource(dev, res);
		if (IS_ERR(state->regs))
			return PTR_ERR(state->regs);
	}

	dev_set_drvdata(dev, state);
	spin_lock_init(&state->slock);

	for (i = 0; i < EXYNOS_MIPI_PHYS_NUM; i++) {
		struct phy *phy = devm_phy_create(dev, NULL,
						  &exynos_mipi_video_phy_ops);
		if (IS_ERR(phy)) {
			dev_err(dev, "failed to create PHY %d\n", i);
			return PTR_ERR(phy);
		}

		state->phys[i].phy = phy;
		state->phys[i].index = i;
		phy_set_drvdata(phy, &state->phys[i]);
	}

	phy_provider = devm_of_phy_provider_register(dev,
					exynos_mipi_video_phy_xlate);

	return PTR_ERR_OR_ZERO(phy_provider);
}
Exemple #26
0
static int realview_soc_probe(struct platform_device *pdev)
{
	static struct regmap *syscon_regmap;
	struct soc_device *soc_dev;
	struct soc_device_attribute *soc_dev_attr;
	struct device_node *np = pdev->dev.of_node;
	int ret;

	syscon_regmap = syscon_regmap_lookup_by_phandle(np, "regmap");
	if (IS_ERR(syscon_regmap))
		return PTR_ERR(syscon_regmap);

	soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
	if (!soc_dev_attr)
		return -ENOMEM;

	ret = of_property_read_string(np, "compatible",
				      &soc_dev_attr->soc_id);
	if (ret)
		return -EINVAL;

	soc_dev_attr->machine = "RealView";
	soc_dev_attr->family = "Versatile";
	soc_dev = soc_device_register(soc_dev_attr);
	if (IS_ERR(soc_dev)) {
		kfree(soc_dev_attr);
		return -ENODEV;
	}
	ret = regmap_read(syscon_regmap, REALVIEW_SYS_ID_OFFSET,
			  &realview_coreid);
	if (ret)
		return -ENODEV;

	device_create_file(soc_device_to_device(soc_dev), &realview_manf_attr);
	device_create_file(soc_device_to_device(soc_dev), &realview_board_attr);
	device_create_file(soc_device_to_device(soc_dev), &realview_arch_attr);
	device_create_file(soc_device_to_device(soc_dev), &realview_build_attr);

	dev_info(&pdev->dev, "RealView Syscon Core ID: 0x%08x, HBI-%03x\n",
		 realview_coreid,
		 ((realview_coreid >> 16) & 0xfff));
	/* FIXME: add attributes for SoC to sysfs */
	return 0;
}
Exemple #27
0
static int syscon_poweroff_probe(struct platform_device *pdev)
{
	char symname[KSYM_NAME_LEN];
	int mask_err, value_err;

	map = syscon_regmap_lookup_by_phandle(pdev->dev.of_node, "regmap");
	if (IS_ERR(map)) {
		dev_err(&pdev->dev, "unable to get syscon");
		return PTR_ERR(map);
	}

	if (of_property_read_u32(pdev->dev.of_node, "offset", &offset)) {
		dev_err(&pdev->dev, "unable to read 'offset'");
		return -EINVAL;
	}

	value_err = of_property_read_u32(pdev->dev.of_node, "value", &value);
	mask_err = of_property_read_u32(pdev->dev.of_node, "mask", &mask);
	if (value_err && mask_err) {
		dev_err(&pdev->dev, "unable to read 'value' and 'mask'");
		return -EINVAL;
	}

	if (value_err) {
		/* support old binding */
		value = mask;
		mask = 0xFFFFFFFF;
	} else if (mask_err) {
		/* support value without mask*/
		mask = 0xFFFFFFFF;
	}

	if (pm_power_off) {
		lookup_symbol_name((ulong)pm_power_off, symname);
		dev_err(&pdev->dev,
		"pm_power_off already claimed %p %s",
		pm_power_off, symname);
		return -EBUSY;
	}

	pm_power_off = syscon_poweroff;

	return 0;
}
Exemple #28
0
static int ltq_wdt_xrx_bootstatus_get(struct device *dev)
{
	struct regmap *rcu_regmap;
	u32 val;
	int err;

	rcu_regmap = syscon_regmap_lookup_by_phandle(dev->of_node, "regmap");
	if (IS_ERR(rcu_regmap))
		return PTR_ERR(rcu_regmap);

	err = regmap_read(rcu_regmap, LTQ_XRX_RCU_RST_STAT, &val);
	if (err)
		return err;

	if (val & LTQ_XRX_RCU_RST_STAT_WDT)
		return WDIOF_CARDRESET;

	return 0;
}
Exemple #29
0
static int ltq_wdt_falcon_bootstatus_get(struct device *dev)
{
	struct regmap *rcu_regmap;
	u32 val;
	int err;

	rcu_regmap = syscon_regmap_lookup_by_phandle(dev->of_node,
						     "lantiq,rcu");
	if (IS_ERR(rcu_regmap))
		return PTR_ERR(rcu_regmap);

	err = regmap_read(rcu_regmap, LTQ_FALCON_SYS1_CPU0RS, &val);
	if (err)
		return err;

	if ((val & LTQ_FALCON_SYS1_CPU0RS_MASK) == LTQ_FALCON_SYS1_CPU0RS_WDT)
		return WDIOF_CARDRESET;

	return 0;
}
Exemple #30
0
static int socfpga_dwmac_parse_data(struct socfpga_dwmac *dwmac, struct device *dev)
{
	struct device_node *np = dev->of_node;
	struct regmap *sys_mgr_base_addr;
	u32 reg_offset, reg_shift;
	int ret;

	dwmac->stmmac_rst = devm_reset_control_get(dev,
						  STMMAC_RESOURCE_NAME);
	if (IS_ERR(dwmac->stmmac_rst)) {
		dev_info(dev, "Could not get reset control!\n");
		return -EINVAL;
	}

	dwmac->interface = of_get_phy_mode(np);

	sys_mgr_base_addr = syscon_regmap_lookup_by_phandle(np, "altr,sysmgr-syscon");
	if (IS_ERR(sys_mgr_base_addr)) {
		dev_info(dev, "No sysmgr-syscon node found\n");
		return PTR_ERR(sys_mgr_base_addr);
	}

	ret = of_property_read_u32_index(np, "altr,sysmgr-syscon", 1, &reg_offset);
	if (ret) {
		dev_info(dev, "Could not read reg_offset from sysmgr-syscon!\n");
		return -EINVAL;
	}

	ret = of_property_read_u32_index(np, "altr,sysmgr-syscon", 2, &reg_shift);
	if (ret) {
		dev_info(dev, "Could not read reg_shift from sysmgr-syscon!\n");
		return -EINVAL;
	}

	dwmac->reg_offset = reg_offset;
	dwmac->reg_shift = reg_shift;
	dwmac->sys_mgr_base_addr = sys_mgr_base_addr;
	dwmac->dev = dev;

	return 0;
}