| /* | 
 |  * SPDX-License-Identifier: GPL-2.0 | 
 |  * Copyright (c) 2018, The Linux Foundation | 
 |  */ | 
 |  | 
 | #include <linux/bitfield.h> | 
 | #include <linux/clk.h> | 
 | #include <linux/delay.h> | 
 | #include <linux/interconnect.h> | 
 | #include <linux/irq.h> | 
 | #include <linux/irqchip.h> | 
 | #include <linux/irqdesc.h> | 
 | #include <linux/irqchip/chained_irq.h> | 
 | #include <linux/of_platform.h> | 
 | #include <linux/platform_device.h> | 
 | #include <linux/pm_runtime.h> | 
 | #include <linux/reset.h> | 
 |  | 
 | #include "msm_mdss.h" | 
 | #include "msm_kms.h" | 
 |  | 
 | #define HW_REV				0x0 | 
 | #define HW_INTR_STATUS			0x0010 | 
 |  | 
 | #define UBWC_DEC_HW_VERSION		0x58 | 
 | #define UBWC_STATIC			0x144 | 
 | #define UBWC_CTRL_2			0x150 | 
 | #define UBWC_PREDICTION_MODE		0x154 | 
 |  | 
 | #define MIN_IB_BW	400000000UL /* Min ib vote 400MB */ | 
 |  | 
 | #define DEFAULT_REG_BW	153600 /* Used in mdss fbdev driver */ | 
 |  | 
 | struct msm_mdss { | 
 | 	struct device *dev; | 
 |  | 
 | 	void __iomem *mmio; | 
 | 	struct clk_bulk_data *clocks; | 
 | 	size_t num_clocks; | 
 | 	bool is_mdp5; | 
 | 	struct { | 
 | 		unsigned long enabled_mask; | 
 | 		struct irq_domain *domain; | 
 | 	} irq_controller; | 
 | 	const struct msm_mdss_data *mdss_data; | 
 | 	struct icc_path *mdp_path[2]; | 
 | 	u32 num_mdp_paths; | 
 | 	struct icc_path *reg_bus_path; | 
 | }; | 
 |  | 
 | static int msm_mdss_parse_data_bus_icc_path(struct device *dev, | 
 | 					    struct msm_mdss *msm_mdss) | 
 | { | 
 | 	struct icc_path *path0; | 
 | 	struct icc_path *path1; | 
 | 	struct icc_path *reg_bus_path; | 
 |  | 
 | 	path0 = devm_of_icc_get(dev, "mdp0-mem"); | 
 | 	if (IS_ERR_OR_NULL(path0)) | 
 | 		return PTR_ERR_OR_ZERO(path0); | 
 |  | 
 | 	msm_mdss->mdp_path[0] = path0; | 
 | 	msm_mdss->num_mdp_paths = 1; | 
 |  | 
 | 	path1 = devm_of_icc_get(dev, "mdp1-mem"); | 
 | 	if (!IS_ERR_OR_NULL(path1)) { | 
 | 		msm_mdss->mdp_path[1] = path1; | 
 | 		msm_mdss->num_mdp_paths++; | 
 | 	} | 
 |  | 
 | 	reg_bus_path = of_icc_get(dev, "cpu-cfg"); | 
 | 	if (!IS_ERR_OR_NULL(reg_bus_path)) | 
 | 		msm_mdss->reg_bus_path = reg_bus_path; | 
 |  | 
 | 	return 0; | 
 | } | 
 |  | 
 | static void msm_mdss_irq(struct irq_desc *desc) | 
 | { | 
 | 	struct msm_mdss *msm_mdss = irq_desc_get_handler_data(desc); | 
 | 	struct irq_chip *chip = irq_desc_get_chip(desc); | 
 | 	u32 interrupts; | 
 |  | 
 | 	chained_irq_enter(chip, desc); | 
 |  | 
 | 	interrupts = readl_relaxed(msm_mdss->mmio + HW_INTR_STATUS); | 
 |  | 
 | 	while (interrupts) { | 
 | 		irq_hw_number_t hwirq = fls(interrupts) - 1; | 
 | 		int rc; | 
 |  | 
 | 		rc = generic_handle_domain_irq(msm_mdss->irq_controller.domain, | 
 | 					       hwirq); | 
 | 		if (rc < 0) { | 
 | 			dev_err(msm_mdss->dev, "handle irq fail: irq=%lu rc=%d\n", | 
 | 				  hwirq, rc); | 
 | 			break; | 
 | 		} | 
 |  | 
 | 		interrupts &= ~(1 << hwirq); | 
 | 	} | 
 |  | 
 | 	chained_irq_exit(chip, desc); | 
 | } | 
 |  | 
 | static void msm_mdss_irq_mask(struct irq_data *irqd) | 
 | { | 
 | 	struct msm_mdss *msm_mdss = irq_data_get_irq_chip_data(irqd); | 
 |  | 
 | 	/* memory barrier */ | 
 | 	smp_mb__before_atomic(); | 
 | 	clear_bit(irqd->hwirq, &msm_mdss->irq_controller.enabled_mask); | 
 | 	/* memory barrier */ | 
 | 	smp_mb__after_atomic(); | 
 | } | 
 |  | 
 | static void msm_mdss_irq_unmask(struct irq_data *irqd) | 
 | { | 
 | 	struct msm_mdss *msm_mdss = irq_data_get_irq_chip_data(irqd); | 
 |  | 
 | 	/* memory barrier */ | 
 | 	smp_mb__before_atomic(); | 
 | 	set_bit(irqd->hwirq, &msm_mdss->irq_controller.enabled_mask); | 
 | 	/* memory barrier */ | 
 | 	smp_mb__after_atomic(); | 
 | } | 
 |  | 
 | static struct irq_chip msm_mdss_irq_chip = { | 
 | 	.name = "msm_mdss", | 
 | 	.irq_mask = msm_mdss_irq_mask, | 
 | 	.irq_unmask = msm_mdss_irq_unmask, | 
 | }; | 
 |  | 
 | static struct lock_class_key msm_mdss_lock_key, msm_mdss_request_key; | 
 |  | 
 | static int msm_mdss_irqdomain_map(struct irq_domain *domain, | 
 | 		unsigned int irq, irq_hw_number_t hwirq) | 
 | { | 
 | 	struct msm_mdss *msm_mdss = domain->host_data; | 
 |  | 
 | 	irq_set_lockdep_class(irq, &msm_mdss_lock_key, &msm_mdss_request_key); | 
 | 	irq_set_chip_and_handler(irq, &msm_mdss_irq_chip, handle_level_irq); | 
 |  | 
 | 	return irq_set_chip_data(irq, msm_mdss); | 
 | } | 
 |  | 
 | static const struct irq_domain_ops msm_mdss_irqdomain_ops = { | 
 | 	.map = msm_mdss_irqdomain_map, | 
 | 	.xlate = irq_domain_xlate_onecell, | 
 | }; | 
 |  | 
 | static int _msm_mdss_irq_domain_add(struct msm_mdss *msm_mdss) | 
 | { | 
 | 	struct device *dev; | 
 | 	struct irq_domain *domain; | 
 |  | 
 | 	dev = msm_mdss->dev; | 
 |  | 
 | 	domain = irq_domain_add_linear(dev->of_node, 32, | 
 | 			&msm_mdss_irqdomain_ops, msm_mdss); | 
 | 	if (!domain) { | 
 | 		dev_err(dev, "failed to add irq_domain\n"); | 
 | 		return -EINVAL; | 
 | 	} | 
 |  | 
 | 	msm_mdss->irq_controller.enabled_mask = 0; | 
 | 	msm_mdss->irq_controller.domain = domain; | 
 |  | 
 | 	return 0; | 
 | } | 
 |  | 
 | static void msm_mdss_setup_ubwc_dec_20(struct msm_mdss *msm_mdss) | 
 | { | 
 | 	const struct msm_mdss_data *data = msm_mdss->mdss_data; | 
 |  | 
 | 	writel_relaxed(data->ubwc_static, msm_mdss->mmio + UBWC_STATIC); | 
 | } | 
 |  | 
 | static void msm_mdss_setup_ubwc_dec_30(struct msm_mdss *msm_mdss) | 
 | { | 
 | 	const struct msm_mdss_data *data = msm_mdss->mdss_data; | 
 | 	u32 value = (data->ubwc_swizzle & 0x1) | | 
 | 		    (data->highest_bank_bit & 0x3) << 4 | | 
 | 		    (data->macrotile_mode & 0x1) << 12; | 
 |  | 
 | 	if (data->ubwc_enc_version == UBWC_3_0) | 
 | 		value |= BIT(10); | 
 |  | 
 | 	if (data->ubwc_enc_version == UBWC_1_0) | 
 | 		value |= BIT(8); | 
 |  | 
 | 	writel_relaxed(value, msm_mdss->mmio + UBWC_STATIC); | 
 | } | 
 |  | 
 | static void msm_mdss_setup_ubwc_dec_40(struct msm_mdss *msm_mdss) | 
 | { | 
 | 	const struct msm_mdss_data *data = msm_mdss->mdss_data; | 
 | 	u32 value = (data->ubwc_swizzle & 0x7) | | 
 | 		    (data->ubwc_static & 0x1) << 3 | | 
 | 		    (data->highest_bank_bit & 0x7) << 4 | | 
 | 		    (data->macrotile_mode & 0x1) << 12; | 
 |  | 
 | 	writel_relaxed(value, msm_mdss->mmio + UBWC_STATIC); | 
 |  | 
 | 	if (data->ubwc_enc_version == UBWC_3_0) { | 
 | 		writel_relaxed(1, msm_mdss->mmio + UBWC_CTRL_2); | 
 | 		writel_relaxed(0, msm_mdss->mmio + UBWC_PREDICTION_MODE); | 
 | 	} else { | 
 | 		if (data->ubwc_dec_version == UBWC_4_3) | 
 | 			writel_relaxed(3, msm_mdss->mmio + UBWC_CTRL_2); | 
 | 		else | 
 | 			writel_relaxed(2, msm_mdss->mmio + UBWC_CTRL_2); | 
 | 		writel_relaxed(1, msm_mdss->mmio + UBWC_PREDICTION_MODE); | 
 | 	} | 
 | } | 
 |  | 
 | #define MDSS_HW_MAJ_MIN		GENMASK(31, 16) | 
 |  | 
 | #define MDSS_HW_MSM8996		0x1007 | 
 | #define MDSS_HW_MSM8937		0x100e | 
 | #define MDSS_HW_MSM8953		0x1010 | 
 | #define MDSS_HW_MSM8998		0x3000 | 
 | #define MDSS_HW_SDM660		0x3002 | 
 | #define MDSS_HW_SDM630		0x3003 | 
 |  | 
 | /* | 
 |  * MDP5 platforms use generic qcom,mdp5 compat string, so we have to generate this data | 
 |  */ | 
 | static const struct msm_mdss_data *msm_mdss_generate_mdp5_mdss_data(struct msm_mdss *mdss) | 
 | { | 
 | 	struct msm_mdss_data *data; | 
 | 	u32 hw_rev; | 
 |  | 
 | 	data = devm_kzalloc(mdss->dev, sizeof(*data), GFP_KERNEL); | 
 | 	if (!data) | 
 | 		return NULL; | 
 |  | 
 | 	hw_rev = readl_relaxed(mdss->mmio + HW_REV); | 
 | 	hw_rev = FIELD_GET(MDSS_HW_MAJ_MIN, hw_rev); | 
 |  | 
 | 	if (hw_rev == MDSS_HW_MSM8996 || | 
 | 	    hw_rev == MDSS_HW_MSM8937 || | 
 | 	    hw_rev == MDSS_HW_MSM8953 || | 
 | 	    hw_rev == MDSS_HW_MSM8998 || | 
 | 	    hw_rev == MDSS_HW_SDM660 || | 
 | 	    hw_rev == MDSS_HW_SDM630) { | 
 | 		data->ubwc_dec_version = UBWC_1_0; | 
 | 		data->ubwc_enc_version = UBWC_1_0; | 
 | 	} | 
 |  | 
 | 	if (hw_rev == MDSS_HW_MSM8996 || | 
 | 	    hw_rev == MDSS_HW_MSM8998) | 
 | 		data->highest_bank_bit = 2; | 
 | 	else | 
 | 		data->highest_bank_bit = 1; | 
 |  | 
 | 	return data; | 
 | } | 
 |  | 
 | const struct msm_mdss_data *msm_mdss_get_mdss_data(struct device *dev) | 
 | { | 
 | 	struct msm_mdss *mdss; | 
 |  | 
 | 	if (!dev) | 
 | 		return ERR_PTR(-EINVAL); | 
 |  | 
 | 	mdss = dev_get_drvdata(dev); | 
 |  | 
 | 	/* | 
 | 	 * We could not do it at the probe time, since hw revision register was | 
 | 	 * not readable. Fill data structure now for the MDP5 platforms. | 
 | 	 */ | 
 | 	if (!mdss->mdss_data && mdss->is_mdp5) | 
 | 		mdss->mdss_data = msm_mdss_generate_mdp5_mdss_data(mdss); | 
 |  | 
 | 	return mdss->mdss_data; | 
 | } | 
 |  | 
 | static int msm_mdss_enable(struct msm_mdss *msm_mdss) | 
 | { | 
 | 	int ret, i; | 
 |  | 
 | 	/* | 
 | 	 * Several components have AXI clocks that can only be turned on if | 
 | 	 * the interconnect is enabled (non-zero bandwidth). Let's make sure | 
 | 	 * that the interconnects are at least at a minimum amount. | 
 | 	 */ | 
 | 	for (i = 0; i < msm_mdss->num_mdp_paths; i++) | 
 | 		icc_set_bw(msm_mdss->mdp_path[i], 0, Bps_to_icc(MIN_IB_BW)); | 
 |  | 
 | 	if (msm_mdss->mdss_data && msm_mdss->mdss_data->reg_bus_bw) | 
 | 		icc_set_bw(msm_mdss->reg_bus_path, 0, | 
 | 			   msm_mdss->mdss_data->reg_bus_bw); | 
 | 	else | 
 | 		icc_set_bw(msm_mdss->reg_bus_path, 0, | 
 | 			   DEFAULT_REG_BW); | 
 |  | 
 | 	ret = clk_bulk_prepare_enable(msm_mdss->num_clocks, msm_mdss->clocks); | 
 | 	if (ret) { | 
 | 		dev_err(msm_mdss->dev, "clock enable failed, ret:%d\n", ret); | 
 | 		return ret; | 
 | 	} | 
 |  | 
 | 	/* | 
 | 	 * Register access requires MDSS_MDP_CLK, which is not enabled by the | 
 | 	 * mdss on mdp5 hardware. Skip it for now. | 
 | 	 */ | 
 | 	if (msm_mdss->is_mdp5 || !msm_mdss->mdss_data) | 
 | 		return 0; | 
 |  | 
 | 	/* | 
 | 	 * ubwc config is part of the "mdss" region which is not accessible | 
 | 	 * from the rest of the driver. hardcode known configurations here | 
 | 	 * | 
 | 	 * Decoder version can be read from the UBWC_DEC_HW_VERSION reg, | 
 | 	 * UBWC_n and the rest of params comes from hw data. | 
 | 	 */ | 
 | 	switch (msm_mdss->mdss_data->ubwc_dec_version) { | 
 | 	case 0: /* no UBWC */ | 
 | 	case UBWC_1_0: | 
 | 		/* do nothing */ | 
 | 		break; | 
 | 	case UBWC_2_0: | 
 | 		msm_mdss_setup_ubwc_dec_20(msm_mdss); | 
 | 		break; | 
 | 	case UBWC_3_0: | 
 | 		msm_mdss_setup_ubwc_dec_30(msm_mdss); | 
 | 		break; | 
 | 	case UBWC_4_0: | 
 | 	case UBWC_4_3: | 
 | 		msm_mdss_setup_ubwc_dec_40(msm_mdss); | 
 | 		break; | 
 | 	default: | 
 | 		dev_err(msm_mdss->dev, "Unsupported UBWC decoder version %x\n", | 
 | 			msm_mdss->mdss_data->ubwc_dec_version); | 
 | 		dev_err(msm_mdss->dev, "HW_REV: 0x%x\n", | 
 | 			readl_relaxed(msm_mdss->mmio + HW_REV)); | 
 | 		dev_err(msm_mdss->dev, "UBWC_DEC_HW_VERSION: 0x%x\n", | 
 | 			readl_relaxed(msm_mdss->mmio + UBWC_DEC_HW_VERSION)); | 
 | 		break; | 
 | 	} | 
 |  | 
 | 	return ret; | 
 | } | 
 |  | 
 | static int msm_mdss_disable(struct msm_mdss *msm_mdss) | 
 | { | 
 | 	int i; | 
 |  | 
 | 	clk_bulk_disable_unprepare(msm_mdss->num_clocks, msm_mdss->clocks); | 
 |  | 
 | 	for (i = 0; i < msm_mdss->num_mdp_paths; i++) | 
 | 		icc_set_bw(msm_mdss->mdp_path[i], 0, 0); | 
 |  | 
 | 	if (msm_mdss->reg_bus_path) | 
 | 		icc_set_bw(msm_mdss->reg_bus_path, 0, 0); | 
 |  | 
 | 	return 0; | 
 | } | 
 |  | 
 | static void msm_mdss_destroy(struct msm_mdss *msm_mdss) | 
 | { | 
 | 	struct platform_device *pdev = to_platform_device(msm_mdss->dev); | 
 | 	int irq; | 
 |  | 
 | 	pm_runtime_suspend(msm_mdss->dev); | 
 | 	pm_runtime_disable(msm_mdss->dev); | 
 | 	irq_domain_remove(msm_mdss->irq_controller.domain); | 
 | 	msm_mdss->irq_controller.domain = NULL; | 
 | 	irq = platform_get_irq(pdev, 0); | 
 | 	irq_set_chained_handler_and_data(irq, NULL, NULL); | 
 | } | 
 |  | 
 | static int msm_mdss_reset(struct device *dev) | 
 | { | 
 | 	struct reset_control *reset; | 
 |  | 
 | 	reset = reset_control_get_optional_exclusive(dev, NULL); | 
 | 	if (!reset) { | 
 | 		/* Optional reset not specified */ | 
 | 		return 0; | 
 | 	} else if (IS_ERR(reset)) { | 
 | 		return dev_err_probe(dev, PTR_ERR(reset), | 
 | 				     "failed to acquire mdss reset\n"); | 
 | 	} | 
 |  | 
 | 	reset_control_assert(reset); | 
 | 	/* | 
 | 	 * Tests indicate that reset has to be held for some period of time, | 
 | 	 * make it one frame in a typical system | 
 | 	 */ | 
 | 	msleep(20); | 
 | 	reset_control_deassert(reset); | 
 |  | 
 | 	reset_control_put(reset); | 
 |  | 
 | 	return 0; | 
 | } | 
 |  | 
 | /* | 
 |  * MDP5 MDSS uses at most three specified clocks. | 
 |  */ | 
 | #define MDP5_MDSS_NUM_CLOCKS 3 | 
 | static int mdp5_mdss_parse_clock(struct platform_device *pdev, struct clk_bulk_data **clocks) | 
 | { | 
 | 	struct clk_bulk_data *bulk; | 
 | 	int num_clocks = 0; | 
 | 	int ret; | 
 |  | 
 | 	if (!pdev) | 
 | 		return -EINVAL; | 
 |  | 
 | 	bulk = devm_kcalloc(&pdev->dev, MDP5_MDSS_NUM_CLOCKS, sizeof(struct clk_bulk_data), GFP_KERNEL); | 
 | 	if (!bulk) | 
 | 		return -ENOMEM; | 
 |  | 
 | 	bulk[num_clocks++].id = "iface"; | 
 | 	bulk[num_clocks++].id = "bus"; | 
 | 	bulk[num_clocks++].id = "vsync"; | 
 |  | 
 | 	ret = devm_clk_bulk_get_optional(&pdev->dev, num_clocks, bulk); | 
 | 	if (ret) | 
 | 		return ret; | 
 |  | 
 | 	*clocks = bulk; | 
 |  | 
 | 	return num_clocks; | 
 | } | 
 |  | 
 | static struct msm_mdss *msm_mdss_init(struct platform_device *pdev, bool is_mdp5) | 
 | { | 
 | 	struct msm_mdss *msm_mdss; | 
 | 	int ret; | 
 | 	int irq; | 
 |  | 
 | 	ret = msm_mdss_reset(&pdev->dev); | 
 | 	if (ret) | 
 | 		return ERR_PTR(ret); | 
 |  | 
 | 	msm_mdss = devm_kzalloc(&pdev->dev, sizeof(*msm_mdss), GFP_KERNEL); | 
 | 	if (!msm_mdss) | 
 | 		return ERR_PTR(-ENOMEM); | 
 |  | 
 | 	msm_mdss->mdss_data = of_device_get_match_data(&pdev->dev); | 
 |  | 
 | 	msm_mdss->mmio = devm_platform_ioremap_resource_byname(pdev, is_mdp5 ? "mdss_phys" : "mdss"); | 
 | 	if (IS_ERR(msm_mdss->mmio)) | 
 | 		return ERR_CAST(msm_mdss->mmio); | 
 |  | 
 | 	dev_dbg(&pdev->dev, "mapped mdss address space @%pK\n", msm_mdss->mmio); | 
 |  | 
 | 	ret = msm_mdss_parse_data_bus_icc_path(&pdev->dev, msm_mdss); | 
 | 	if (ret) | 
 | 		return ERR_PTR(ret); | 
 |  | 
 | 	if (is_mdp5) | 
 | 		ret = mdp5_mdss_parse_clock(pdev, &msm_mdss->clocks); | 
 | 	else | 
 | 		ret = devm_clk_bulk_get_all(&pdev->dev, &msm_mdss->clocks); | 
 | 	if (ret < 0) { | 
 | 		dev_err(&pdev->dev, "failed to parse clocks, ret=%d\n", ret); | 
 | 		return ERR_PTR(ret); | 
 | 	} | 
 | 	msm_mdss->num_clocks = ret; | 
 | 	msm_mdss->is_mdp5 = is_mdp5; | 
 |  | 
 | 	msm_mdss->dev = &pdev->dev; | 
 |  | 
 | 	irq = platform_get_irq(pdev, 0); | 
 | 	if (irq < 0) | 
 | 		return ERR_PTR(irq); | 
 |  | 
 | 	ret = _msm_mdss_irq_domain_add(msm_mdss); | 
 | 	if (ret) | 
 | 		return ERR_PTR(ret); | 
 |  | 
 | 	irq_set_chained_handler_and_data(irq, msm_mdss_irq, | 
 | 					 msm_mdss); | 
 |  | 
 | 	pm_runtime_enable(&pdev->dev); | 
 |  | 
 | 	return msm_mdss; | 
 | } | 
 |  | 
 | static int __maybe_unused mdss_runtime_suspend(struct device *dev) | 
 | { | 
 | 	struct msm_mdss *mdss = dev_get_drvdata(dev); | 
 |  | 
 | 	DBG(""); | 
 |  | 
 | 	return msm_mdss_disable(mdss); | 
 | } | 
 |  | 
 | static int __maybe_unused mdss_runtime_resume(struct device *dev) | 
 | { | 
 | 	struct msm_mdss *mdss = dev_get_drvdata(dev); | 
 |  | 
 | 	DBG(""); | 
 |  | 
 | 	return msm_mdss_enable(mdss); | 
 | } | 
 |  | 
 | static int __maybe_unused mdss_pm_suspend(struct device *dev) | 
 | { | 
 |  | 
 | 	if (pm_runtime_suspended(dev)) | 
 | 		return 0; | 
 |  | 
 | 	return mdss_runtime_suspend(dev); | 
 | } | 
 |  | 
 | static int __maybe_unused mdss_pm_resume(struct device *dev) | 
 | { | 
 | 	if (pm_runtime_suspended(dev)) | 
 | 		return 0; | 
 |  | 
 | 	return mdss_runtime_resume(dev); | 
 | } | 
 |  | 
 | static const struct dev_pm_ops mdss_pm_ops = { | 
 | 	SET_SYSTEM_SLEEP_PM_OPS(mdss_pm_suspend, mdss_pm_resume) | 
 | 	SET_RUNTIME_PM_OPS(mdss_runtime_suspend, mdss_runtime_resume, NULL) | 
 | }; | 
 |  | 
 | static int mdss_probe(struct platform_device *pdev) | 
 | { | 
 | 	struct msm_mdss *mdss; | 
 | 	bool is_mdp5 = of_device_is_compatible(pdev->dev.of_node, "qcom,mdss"); | 
 | 	struct device *dev = &pdev->dev; | 
 | 	int ret; | 
 |  | 
 | 	mdss = msm_mdss_init(pdev, is_mdp5); | 
 | 	if (IS_ERR(mdss)) | 
 | 		return PTR_ERR(mdss); | 
 |  | 
 | 	platform_set_drvdata(pdev, mdss); | 
 |  | 
 | 	/* | 
 | 	 * MDP5/DPU based devices don't have a flat hierarchy. There is a top | 
 | 	 * level parent: MDSS, and children: MDP5/DPU, DSI, HDMI, eDP etc. | 
 | 	 * Populate the children devices, find the MDP5/DPU node, and then add | 
 | 	 * the interfaces to our components list. | 
 | 	 */ | 
 | 	ret = of_platform_populate(dev->of_node, NULL, NULL, dev); | 
 | 	if (ret) { | 
 | 		DRM_DEV_ERROR(dev, "failed to populate children devices\n"); | 
 | 		msm_mdss_destroy(mdss); | 
 | 		return ret; | 
 | 	} | 
 |  | 
 | 	return 0; | 
 | } | 
 |  | 
 | static void mdss_remove(struct platform_device *pdev) | 
 | { | 
 | 	struct msm_mdss *mdss = platform_get_drvdata(pdev); | 
 |  | 
 | 	of_platform_depopulate(&pdev->dev); | 
 |  | 
 | 	msm_mdss_destroy(mdss); | 
 | } | 
 |  | 
 | static const struct msm_mdss_data msm8998_data = { | 
 | 	.ubwc_enc_version = UBWC_1_0, | 
 | 	.ubwc_dec_version = UBWC_1_0, | 
 | 	.highest_bank_bit = 2, | 
 | 	.reg_bus_bw = 76800, | 
 | }; | 
 |  | 
 | static const struct msm_mdss_data qcm2290_data = { | 
 | 	/* no UBWC */ | 
 | 	.highest_bank_bit = 0x2, | 
 | 	.reg_bus_bw = 76800, | 
 | }; | 
 |  | 
 | static const struct msm_mdss_data sc7180_data = { | 
 | 	.ubwc_enc_version = UBWC_2_0, | 
 | 	.ubwc_dec_version = UBWC_2_0, | 
 | 	.ubwc_static = 0x1e, | 
 | 	.highest_bank_bit = 0x1, | 
 | 	.reg_bus_bw = 76800, | 
 | }; | 
 |  | 
 | static const struct msm_mdss_data sc7280_data = { | 
 | 	.ubwc_enc_version = UBWC_3_0, | 
 | 	.ubwc_dec_version = UBWC_4_0, | 
 | 	.ubwc_swizzle = 6, | 
 | 	.ubwc_static = 1, | 
 | 	.highest_bank_bit = 1, | 
 | 	.macrotile_mode = 1, | 
 | 	.reg_bus_bw = 74000, | 
 | }; | 
 |  | 
 | static const struct msm_mdss_data sc8180x_data = { | 
 | 	.ubwc_enc_version = UBWC_3_0, | 
 | 	.ubwc_dec_version = UBWC_3_0, | 
 | 	.highest_bank_bit = 3, | 
 | 	.macrotile_mode = 1, | 
 | 	.reg_bus_bw = 76800, | 
 | }; | 
 |  | 
 | static const struct msm_mdss_data sc8280xp_data = { | 
 | 	.ubwc_enc_version = UBWC_4_0, | 
 | 	.ubwc_dec_version = UBWC_4_0, | 
 | 	.ubwc_swizzle = 6, | 
 | 	.ubwc_static = 1, | 
 | 	.highest_bank_bit = 3, | 
 | 	.macrotile_mode = 1, | 
 | 	.reg_bus_bw = 76800, | 
 | }; | 
 |  | 
 | static const struct msm_mdss_data sdm670_data = { | 
 | 	.ubwc_enc_version = UBWC_2_0, | 
 | 	.ubwc_dec_version = UBWC_2_0, | 
 | 	.highest_bank_bit = 1, | 
 | 	.reg_bus_bw = 76800, | 
 | }; | 
 |  | 
 | static const struct msm_mdss_data sdm845_data = { | 
 | 	.ubwc_enc_version = UBWC_2_0, | 
 | 	.ubwc_dec_version = UBWC_2_0, | 
 | 	.highest_bank_bit = 2, | 
 | 	.reg_bus_bw = 76800, | 
 | }; | 
 |  | 
 | static const struct msm_mdss_data sm6350_data = { | 
 | 	.ubwc_enc_version = UBWC_2_0, | 
 | 	.ubwc_dec_version = UBWC_2_0, | 
 | 	.ubwc_swizzle = 6, | 
 | 	.ubwc_static = 0x1e, | 
 | 	.highest_bank_bit = 1, | 
 | 	.reg_bus_bw = 76800, | 
 | }; | 
 |  | 
 | static const struct msm_mdss_data sm7150_data = { | 
 | 	.ubwc_enc_version = UBWC_2_0, | 
 | 	.ubwc_dec_version = UBWC_2_0, | 
 | 	.highest_bank_bit = 1, | 
 | 	.reg_bus_bw = 76800, | 
 | }; | 
 |  | 
 | static const struct msm_mdss_data sm8150_data = { | 
 | 	.ubwc_enc_version = UBWC_3_0, | 
 | 	.ubwc_dec_version = UBWC_3_0, | 
 | 	.highest_bank_bit = 2, | 
 | 	.reg_bus_bw = 76800, | 
 | }; | 
 |  | 
 | static const struct msm_mdss_data sm6115_data = { | 
 | 	.ubwc_enc_version = UBWC_1_0, | 
 | 	.ubwc_dec_version = UBWC_2_0, | 
 | 	.ubwc_swizzle = 7, | 
 | 	.ubwc_static = 0x11f, | 
 | 	.highest_bank_bit = 0x1, | 
 | 	.reg_bus_bw = 76800, | 
 | }; | 
 |  | 
 | static const struct msm_mdss_data sm6125_data = { | 
 | 	.ubwc_enc_version = UBWC_1_0, | 
 | 	.ubwc_dec_version = UBWC_3_0, | 
 | 	.ubwc_swizzle = 1, | 
 | 	.highest_bank_bit = 1, | 
 | }; | 
 |  | 
 | static const struct msm_mdss_data sm8250_data = { | 
 | 	.ubwc_enc_version = UBWC_4_0, | 
 | 	.ubwc_dec_version = UBWC_4_0, | 
 | 	.ubwc_swizzle = 6, | 
 | 	.ubwc_static = 1, | 
 | 	/* TODO: highest_bank_bit = 2 for LP_DDR4 */ | 
 | 	.highest_bank_bit = 3, | 
 | 	.macrotile_mode = 1, | 
 | 	.reg_bus_bw = 76800, | 
 | }; | 
 |  | 
 | static const struct msm_mdss_data sm8350_data = { | 
 | 	.ubwc_enc_version = UBWC_4_0, | 
 | 	.ubwc_dec_version = UBWC_4_0, | 
 | 	.ubwc_swizzle = 6, | 
 | 	.ubwc_static = 1, | 
 | 	/* TODO: highest_bank_bit = 2 for LP_DDR4 */ | 
 | 	.highest_bank_bit = 3, | 
 | 	.macrotile_mode = 1, | 
 | 	.reg_bus_bw = 74000, | 
 | }; | 
 |  | 
 | static const struct msm_mdss_data sm8550_data = { | 
 | 	.ubwc_enc_version = UBWC_4_0, | 
 | 	.ubwc_dec_version = UBWC_4_3, | 
 | 	.ubwc_swizzle = 6, | 
 | 	.ubwc_static = 1, | 
 | 	/* TODO: highest_bank_bit = 2 for LP_DDR4 */ | 
 | 	.highest_bank_bit = 3, | 
 | 	.macrotile_mode = 1, | 
 | 	.reg_bus_bw = 57000, | 
 | }; | 
 |  | 
 | static const struct msm_mdss_data x1e80100_data = { | 
 | 	.ubwc_enc_version = UBWC_4_0, | 
 | 	.ubwc_dec_version = UBWC_4_3, | 
 | 	.ubwc_swizzle = 6, | 
 | 	.ubwc_static = 1, | 
 | 	/* TODO: highest_bank_bit = 2 for LP_DDR4 */ | 
 | 	.highest_bank_bit = 3, | 
 | 	.macrotile_mode = 1, | 
 | 	/* TODO: Add reg_bus_bw with real value */ | 
 | }; | 
 |  | 
 | static const struct of_device_id mdss_dt_match[] = { | 
 | 	{ .compatible = "qcom,mdss" }, | 
 | 	{ .compatible = "qcom,msm8998-mdss", .data = &msm8998_data }, | 
 | 	{ .compatible = "qcom,qcm2290-mdss", .data = &qcm2290_data }, | 
 | 	{ .compatible = "qcom,sdm670-mdss", .data = &sdm670_data }, | 
 | 	{ .compatible = "qcom,sdm845-mdss", .data = &sdm845_data }, | 
 | 	{ .compatible = "qcom,sc7180-mdss", .data = &sc7180_data }, | 
 | 	{ .compatible = "qcom,sc7280-mdss", .data = &sc7280_data }, | 
 | 	{ .compatible = "qcom,sc8180x-mdss", .data = &sc8180x_data }, | 
 | 	{ .compatible = "qcom,sc8280xp-mdss", .data = &sc8280xp_data }, | 
 | 	{ .compatible = "qcom,sm6115-mdss", .data = &sm6115_data }, | 
 | 	{ .compatible = "qcom,sm6125-mdss", .data = &sm6125_data }, | 
 | 	{ .compatible = "qcom,sm6350-mdss", .data = &sm6350_data }, | 
 | 	{ .compatible = "qcom,sm6375-mdss", .data = &sm6350_data }, | 
 | 	{ .compatible = "qcom,sm7150-mdss", .data = &sm7150_data }, | 
 | 	{ .compatible = "qcom,sm8150-mdss", .data = &sm8150_data }, | 
 | 	{ .compatible = "qcom,sm8250-mdss", .data = &sm8250_data }, | 
 | 	{ .compatible = "qcom,sm8350-mdss", .data = &sm8350_data }, | 
 | 	{ .compatible = "qcom,sm8450-mdss", .data = &sm8350_data }, | 
 | 	{ .compatible = "qcom,sm8550-mdss", .data = &sm8550_data }, | 
 | 	{ .compatible = "qcom,sm8650-mdss", .data = &sm8550_data}, | 
 | 	{ .compatible = "qcom,x1e80100-mdss", .data = &x1e80100_data}, | 
 | 	{} | 
 | }; | 
 | MODULE_DEVICE_TABLE(of, mdss_dt_match); | 
 |  | 
 | static struct platform_driver mdss_platform_driver = { | 
 | 	.probe      = mdss_probe, | 
 | 	.remove_new = mdss_remove, | 
 | 	.driver     = { | 
 | 		.name   = "msm-mdss", | 
 | 		.of_match_table = mdss_dt_match, | 
 | 		.pm     = &mdss_pm_ops, | 
 | 	}, | 
 | }; | 
 |  | 
 | void __init msm_mdss_register(void) | 
 | { | 
 | 	platform_driver_register(&mdss_platform_driver); | 
 | } | 
 |  | 
 | void __exit msm_mdss_unregister(void) | 
 | { | 
 | 	platform_driver_unregister(&mdss_platform_driver); | 
 | } |