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v6.2
  1// SPDX-License-Identifier: GPL-2.0
  2/*
  3 * Copyright (c) 2011-2015, The Linux Foundation. All rights reserved.
  4 *
  5 * Description: CoreSight Replicator driver
  6 */
  7
  8#include <linux/acpi.h>
  9#include <linux/amba/bus.h>
 10#include <linux/kernel.h>
 11#include <linux/device.h>
 12#include <linux/platform_device.h>
 13#include <linux/io.h>
 14#include <linux/err.h>
 15#include <linux/slab.h>
 16#include <linux/pm_runtime.h>
 17#include <linux/property.h>
 18#include <linux/clk.h>
 19#include <linux/of.h>
 20#include <linux/coresight.h>
 21
 22#include "coresight-priv.h"
 23
 24#define REPLICATOR_IDFILTER0		0x000
 25#define REPLICATOR_IDFILTER1		0x004
 26
 27DEFINE_CORESIGHT_DEVLIST(replicator_devs, "replicator");
 28
 29/**
 30 * struct replicator_drvdata - specifics associated to a replicator component
 31 * @base:	memory mapped base address for this component. Also indicates
 32 *		whether this one is programmable or not.
 33 * @atclk:	optional clock for the core parts of the replicator.
 34 * @csdev:	component vitals needed by the framework
 35 * @spinlock:	serialize enable/disable operations.
 36 * @check_idfilter_val: check if the context is lost upon clock removal.
 37 */
 38struct replicator_drvdata {
 39	void __iomem		*base;
 40	struct clk		*atclk;
 41	struct coresight_device	*csdev;
 42	spinlock_t		spinlock;
 43	bool			check_idfilter_val;
 44};
 45
 46static void dynamic_replicator_reset(struct replicator_drvdata *drvdata)
 47{
 48	struct coresight_device *csdev = drvdata->csdev;
 49
 50	CS_UNLOCK(drvdata->base);
 51
 52	if (!coresight_claim_device_unlocked(csdev)) {
 53		writel_relaxed(0xff, drvdata->base + REPLICATOR_IDFILTER0);
 54		writel_relaxed(0xff, drvdata->base + REPLICATOR_IDFILTER1);
 55		coresight_disclaim_device_unlocked(csdev);
 56	}
 57
 58	CS_LOCK(drvdata->base);
 59}
 60
 61/*
 62 * replicator_reset : Reset the replicator configuration to sane values.
 63 */
 64static inline void replicator_reset(struct replicator_drvdata *drvdata)
 65{
 66	if (drvdata->base)
 67		dynamic_replicator_reset(drvdata);
 68}
 69
 70static int dynamic_replicator_enable(struct replicator_drvdata *drvdata,
 71				     int inport, int outport)
 72{
 73	int rc = 0;
 74	u32 id0val, id1val;
 75	struct coresight_device *csdev = drvdata->csdev;
 76
 77	CS_UNLOCK(drvdata->base);
 78
 79	id0val = readl_relaxed(drvdata->base + REPLICATOR_IDFILTER0);
 80	id1val = readl_relaxed(drvdata->base + REPLICATOR_IDFILTER1);
 81
 82	/*
 83	 * Some replicator designs lose context when AMBA clocks are removed,
 84	 * so have a check for this.
 85	 */
 86	if (drvdata->check_idfilter_val && id0val == 0x0 && id1val == 0x0)
 87		id0val = id1val = 0xff;
 
 
 
 
 
 88
 89	if (id0val == 0xff && id1val == 0xff)
 90		rc = coresight_claim_device_unlocked(csdev);
 91
 92	if (!rc) {
 93		switch (outport) {
 94		case 0:
 95			id0val = 0x0;
 96			break;
 97		case 1:
 98			id1val = 0x0;
 99			break;
100		default:
101			WARN_ON(1);
102			rc = -EINVAL;
103		}
104	}
105
106	/* Ensure that the outport is enabled. */
107	if (!rc) {
108		writel_relaxed(id0val, drvdata->base + REPLICATOR_IDFILTER0);
109		writel_relaxed(id1val, drvdata->base + REPLICATOR_IDFILTER1);
110	}
111
112	CS_LOCK(drvdata->base);
113
114	return rc;
115}
116
117static int replicator_enable(struct coresight_device *csdev, int inport,
118			     int outport)
119{
120	int rc = 0;
121	struct replicator_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
122	unsigned long flags;
123	bool first_enable = false;
124
125	spin_lock_irqsave(&drvdata->spinlock, flags);
126	if (atomic_read(&csdev->refcnt[outport]) == 0) {
127		if (drvdata->base)
128			rc = dynamic_replicator_enable(drvdata, inport,
129						       outport);
130		if (!rc)
131			first_enable = true;
132	}
133	if (!rc)
134		atomic_inc(&csdev->refcnt[outport]);
135	spin_unlock_irqrestore(&drvdata->spinlock, flags);
136
137	if (first_enable)
138		dev_dbg(&csdev->dev, "REPLICATOR enabled\n");
139	return rc;
140}
141
142static void dynamic_replicator_disable(struct replicator_drvdata *drvdata,
143				       int inport, int outport)
144{
145	u32 reg;
146	struct coresight_device *csdev = drvdata->csdev;
147
148	switch (outport) {
149	case 0:
150		reg = REPLICATOR_IDFILTER0;
151		break;
152	case 1:
153		reg = REPLICATOR_IDFILTER1;
154		break;
155	default:
156		WARN_ON(1);
157		return;
158	}
159
160	CS_UNLOCK(drvdata->base);
161
162	/* disable the flow of ATB data through port */
163	writel_relaxed(0xff, drvdata->base + reg);
164
165	if ((readl_relaxed(drvdata->base + REPLICATOR_IDFILTER0) == 0xff) &&
166	    (readl_relaxed(drvdata->base + REPLICATOR_IDFILTER1) == 0xff))
167		coresight_disclaim_device_unlocked(csdev);
168	CS_LOCK(drvdata->base);
169}
170
171static void replicator_disable(struct coresight_device *csdev, int inport,
172			       int outport)
173{
174	struct replicator_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
175	unsigned long flags;
176	bool last_disable = false;
177
178	spin_lock_irqsave(&drvdata->spinlock, flags);
179	if (atomic_dec_return(&csdev->refcnt[outport]) == 0) {
180		if (drvdata->base)
181			dynamic_replicator_disable(drvdata, inport, outport);
182		last_disable = true;
183	}
184	spin_unlock_irqrestore(&drvdata->spinlock, flags);
185
186	if (last_disable)
187		dev_dbg(&csdev->dev, "REPLICATOR disabled\n");
 
188}
189
190static const struct coresight_ops_link replicator_link_ops = {
191	.enable		= replicator_enable,
192	.disable	= replicator_disable,
193};
194
195static const struct coresight_ops replicator_cs_ops = {
196	.link_ops	= &replicator_link_ops,
197};
198
 
 
 
 
 
 
199static struct attribute *replicator_mgmt_attrs[] = {
200	coresight_simple_reg32(idfilter0, REPLICATOR_IDFILTER0),
201	coresight_simple_reg32(idfilter1, REPLICATOR_IDFILTER1),
202	NULL,
203};
204
205static const struct attribute_group replicator_mgmt_group = {
206	.attrs = replicator_mgmt_attrs,
207	.name = "mgmt",
208};
209
210static const struct attribute_group *replicator_groups[] = {
211	&replicator_mgmt_group,
212	NULL,
213};
214
215static int replicator_probe(struct device *dev, struct resource *res)
216{
217	int ret = 0;
218	struct coresight_platform_data *pdata = NULL;
219	struct replicator_drvdata *drvdata;
220	struct coresight_desc desc = { 0 };
221	void __iomem *base;
222
223	if (is_of_node(dev_fwnode(dev)) &&
224	    of_device_is_compatible(dev->of_node, "arm,coresight-replicator"))
225		dev_warn_once(dev,
226			      "Uses OBSOLETE CoreSight replicator binding\n");
227
228	desc.name = coresight_alloc_device_name(&replicator_devs, dev);
229	if (!desc.name)
230		return -ENOMEM;
231
232	drvdata = devm_kzalloc(dev, sizeof(*drvdata), GFP_KERNEL);
233	if (!drvdata)
234		return -ENOMEM;
235
236	drvdata->atclk = devm_clk_get(dev, "atclk"); /* optional */
237	if (!IS_ERR(drvdata->atclk)) {
238		ret = clk_prepare_enable(drvdata->atclk);
239		if (ret)
240			return ret;
241	}
242
243	/*
244	 * Map the device base for dynamic-replicator, which has been
245	 * validated by AMBA core
246	 */
247	if (res) {
248		base = devm_ioremap_resource(dev, res);
249		if (IS_ERR(base)) {
250			ret = PTR_ERR(base);
251			goto out_disable_clk;
252		}
253		drvdata->base = base;
254		desc.groups = replicator_groups;
255		desc.access = CSDEV_ACCESS_IOMEM(base);
256	}
257
258	if (fwnode_property_present(dev_fwnode(dev),
259				    "qcom,replicator-loses-context"))
260		drvdata->check_idfilter_val = true;
261
262	dev_set_drvdata(dev, drvdata);
263
264	pdata = coresight_get_platform_data(dev);
265	if (IS_ERR(pdata)) {
266		ret = PTR_ERR(pdata);
267		goto out_disable_clk;
268	}
269	dev->platform_data = pdata;
270
271	spin_lock_init(&drvdata->spinlock);
272	desc.type = CORESIGHT_DEV_TYPE_LINK;
273	desc.subtype.link_subtype = CORESIGHT_DEV_SUBTYPE_LINK_SPLIT;
274	desc.ops = &replicator_cs_ops;
275	desc.pdata = dev->platform_data;
276	desc.dev = dev;
277
278	drvdata->csdev = coresight_register(&desc);
279	if (IS_ERR(drvdata->csdev)) {
280		ret = PTR_ERR(drvdata->csdev);
281		goto out_disable_clk;
282	}
283
284	replicator_reset(drvdata);
285	pm_runtime_put(dev);
286
287out_disable_clk:
288	if (ret && !IS_ERR_OR_NULL(drvdata->atclk))
289		clk_disable_unprepare(drvdata->atclk);
290	return ret;
291}
292
293static int replicator_remove(struct device *dev)
294{
295	struct replicator_drvdata *drvdata = dev_get_drvdata(dev);
296
297	coresight_unregister(drvdata->csdev);
298	return 0;
299}
300
301static int static_replicator_probe(struct platform_device *pdev)
302{
303	int ret;
304
305	pm_runtime_get_noresume(&pdev->dev);
306	pm_runtime_set_active(&pdev->dev);
307	pm_runtime_enable(&pdev->dev);
308
309	/* Static replicators do not have programming base */
310	ret = replicator_probe(&pdev->dev, NULL);
311
312	if (ret) {
313		pm_runtime_put_noidle(&pdev->dev);
314		pm_runtime_disable(&pdev->dev);
315	}
316
317	return ret;
318}
319
320static int static_replicator_remove(struct platform_device *pdev)
321{
322	replicator_remove(&pdev->dev);
323	pm_runtime_disable(&pdev->dev);
324	return 0;
325}
326
327#ifdef CONFIG_PM
328static int replicator_runtime_suspend(struct device *dev)
329{
330	struct replicator_drvdata *drvdata = dev_get_drvdata(dev);
331
332	if (drvdata && !IS_ERR(drvdata->atclk))
333		clk_disable_unprepare(drvdata->atclk);
334
335	return 0;
336}
337
338static int replicator_runtime_resume(struct device *dev)
339{
340	struct replicator_drvdata *drvdata = dev_get_drvdata(dev);
341
342	if (drvdata && !IS_ERR(drvdata->atclk))
343		clk_prepare_enable(drvdata->atclk);
344
345	return 0;
346}
347#endif
348
349static const struct dev_pm_ops replicator_dev_pm_ops = {
350	SET_RUNTIME_PM_OPS(replicator_runtime_suspend,
351			   replicator_runtime_resume, NULL)
352};
353
354static const struct of_device_id static_replicator_match[] = {
355	{.compatible = "arm,coresight-replicator"},
356	{.compatible = "arm,coresight-static-replicator"},
357	{}
358};
359
360MODULE_DEVICE_TABLE(of, static_replicator_match);
361
362#ifdef CONFIG_ACPI
363static const struct acpi_device_id static_replicator_acpi_ids[] = {
364	{"ARMHC985", 0}, /* ARM CoreSight Static Replicator */
365	{}
366};
367
368MODULE_DEVICE_TABLE(acpi, static_replicator_acpi_ids);
369#endif
370
371static struct platform_driver static_replicator_driver = {
372	.probe          = static_replicator_probe,
373	.remove         = static_replicator_remove,
374	.driver         = {
375		.name   = "coresight-static-replicator",
376		/* THIS_MODULE is taken care of by platform_driver_register() */
377		.of_match_table = of_match_ptr(static_replicator_match),
378		.acpi_match_table = ACPI_PTR(static_replicator_acpi_ids),
379		.pm	= &replicator_dev_pm_ops,
380		.suppress_bind_attrs = true,
381	},
382};
 
383
384static int dynamic_replicator_probe(struct amba_device *adev,
385				    const struct amba_id *id)
386{
387	return replicator_probe(&adev->dev, &adev->res);
388}
389
390static void dynamic_replicator_remove(struct amba_device *adev)
391{
392	replicator_remove(&adev->dev);
393}
394
395static const struct amba_id dynamic_replicator_ids[] = {
396	CS_AMBA_ID(0x000bb909),
397	CS_AMBA_ID(0x000bb9ec),		/* Coresight SoC-600 */
398	{},
 
 
 
 
 
 
 
399};
400
401MODULE_DEVICE_TABLE(amba, dynamic_replicator_ids);
402
403static struct amba_driver dynamic_replicator_driver = {
404	.drv = {
405		.name	= "coresight-dynamic-replicator",
406		.pm	= &replicator_dev_pm_ops,
407		.owner	= THIS_MODULE,
408		.suppress_bind_attrs = true,
409	},
410	.probe		= dynamic_replicator_probe,
411	.remove         = dynamic_replicator_remove,
412	.id_table	= dynamic_replicator_ids,
413};
414
415static int __init replicator_init(void)
416{
417	int ret;
418
419	ret = platform_driver_register(&static_replicator_driver);
420	if (ret) {
421		pr_info("Error registering platform driver\n");
422		return ret;
423	}
424
425	ret = amba_driver_register(&dynamic_replicator_driver);
426	if (ret) {
427		pr_info("Error registering amba driver\n");
428		platform_driver_unregister(&static_replicator_driver);
429	}
430
431	return ret;
432}
433
434static void __exit replicator_exit(void)
435{
436	platform_driver_unregister(&static_replicator_driver);
437	amba_driver_unregister(&dynamic_replicator_driver);
438}
439
440module_init(replicator_init);
441module_exit(replicator_exit);
442
443MODULE_AUTHOR("Pratik Patel <pratikp@codeaurora.org>");
444MODULE_AUTHOR("Mathieu Poirier <mathieu.poirier@linaro.org>");
445MODULE_DESCRIPTION("Arm CoreSight Replicator Driver");
446MODULE_LICENSE("GPL v2");
v5.4
  1// SPDX-License-Identifier: GPL-2.0
  2/*
  3 * Copyright (c) 2011-2015, The Linux Foundation. All rights reserved.
  4 *
  5 * Description: CoreSight Replicator driver
  6 */
  7
  8#include <linux/acpi.h>
  9#include <linux/amba/bus.h>
 10#include <linux/kernel.h>
 11#include <linux/device.h>
 12#include <linux/platform_device.h>
 13#include <linux/io.h>
 14#include <linux/err.h>
 15#include <linux/slab.h>
 16#include <linux/pm_runtime.h>
 
 17#include <linux/clk.h>
 18#include <linux/of.h>
 19#include <linux/coresight.h>
 20
 21#include "coresight-priv.h"
 22
 23#define REPLICATOR_IDFILTER0		0x000
 24#define REPLICATOR_IDFILTER1		0x004
 25
 26DEFINE_CORESIGHT_DEVLIST(replicator_devs, "replicator");
 27
 28/**
 29 * struct replicator_drvdata - specifics associated to a replicator component
 30 * @base:	memory mapped base address for this component. Also indicates
 31 *		whether this one is programmable or not.
 32 * @atclk:	optional clock for the core parts of the replicator.
 33 * @csdev:	component vitals needed by the framework
 
 
 34 */
 35struct replicator_drvdata {
 36	void __iomem		*base;
 37	struct clk		*atclk;
 38	struct coresight_device	*csdev;
 
 
 39};
 40
 41static void dynamic_replicator_reset(struct replicator_drvdata *drvdata)
 42{
 
 
 43	CS_UNLOCK(drvdata->base);
 44
 45	if (!coresight_claim_device_unlocked(drvdata->base)) {
 46		writel_relaxed(0xff, drvdata->base + REPLICATOR_IDFILTER0);
 47		writel_relaxed(0xff, drvdata->base + REPLICATOR_IDFILTER1);
 48		coresight_disclaim_device_unlocked(drvdata->base);
 49	}
 50
 51	CS_LOCK(drvdata->base);
 52}
 53
 54/*
 55 * replicator_reset : Reset the replicator configuration to sane values.
 56 */
 57static inline void replicator_reset(struct replicator_drvdata *drvdata)
 58{
 59	if (drvdata->base)
 60		dynamic_replicator_reset(drvdata);
 61}
 62
 63static int dynamic_replicator_enable(struct replicator_drvdata *drvdata,
 64				     int inport, int outport)
 65{
 66	int rc = 0;
 67	u32 reg;
 
 
 
 
 
 
 68
 69	switch (outport) {
 70	case 0:
 71		reg = REPLICATOR_IDFILTER0;
 72		break;
 73	case 1:
 74		reg = REPLICATOR_IDFILTER1;
 75		break;
 76	default:
 77		WARN_ON(1);
 78		return -EINVAL;
 79	}
 80
 81	CS_UNLOCK(drvdata->base);
 
 82
 83	if ((readl_relaxed(drvdata->base + REPLICATOR_IDFILTER0) == 0xff) &&
 84	    (readl_relaxed(drvdata->base + REPLICATOR_IDFILTER1) == 0xff))
 85		rc = coresight_claim_device_unlocked(drvdata->base);
 
 
 
 
 
 
 
 
 
 
 86
 87	/* Ensure that the outport is enabled. */
 88	if (!rc)
 89		writel_relaxed(0x00, drvdata->base + reg);
 
 
 
 90	CS_LOCK(drvdata->base);
 91
 92	return rc;
 93}
 94
 95static int replicator_enable(struct coresight_device *csdev, int inport,
 96			     int outport)
 97{
 98	int rc = 0;
 99	struct replicator_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
 
 
100
101	if (drvdata->base)
102		rc = dynamic_replicator_enable(drvdata, inport, outport);
 
 
 
 
 
 
103	if (!rc)
 
 
 
 
104		dev_dbg(&csdev->dev, "REPLICATOR enabled\n");
105	return rc;
106}
107
108static void dynamic_replicator_disable(struct replicator_drvdata *drvdata,
109				       int inport, int outport)
110{
111	u32 reg;
 
112
113	switch (outport) {
114	case 0:
115		reg = REPLICATOR_IDFILTER0;
116		break;
117	case 1:
118		reg = REPLICATOR_IDFILTER1;
119		break;
120	default:
121		WARN_ON(1);
122		return;
123	}
124
125	CS_UNLOCK(drvdata->base);
126
127	/* disable the flow of ATB data through port */
128	writel_relaxed(0xff, drvdata->base + reg);
129
130	if ((readl_relaxed(drvdata->base + REPLICATOR_IDFILTER0) == 0xff) &&
131	    (readl_relaxed(drvdata->base + REPLICATOR_IDFILTER1) == 0xff))
132		coresight_disclaim_device_unlocked(drvdata->base);
133	CS_LOCK(drvdata->base);
134}
135
136static void replicator_disable(struct coresight_device *csdev, int inport,
137			       int outport)
138{
139	struct replicator_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
 
 
 
 
 
 
 
 
 
 
140
141	if (drvdata->base)
142		dynamic_replicator_disable(drvdata, inport, outport);
143	dev_dbg(&csdev->dev, "REPLICATOR disabled\n");
144}
145
146static const struct coresight_ops_link replicator_link_ops = {
147	.enable		= replicator_enable,
148	.disable	= replicator_disable,
149};
150
151static const struct coresight_ops replicator_cs_ops = {
152	.link_ops	= &replicator_link_ops,
153};
154
155#define coresight_replicator_reg(name, offset) \
156	coresight_simple_reg32(struct replicator_drvdata, name, offset)
157
158coresight_replicator_reg(idfilter0, REPLICATOR_IDFILTER0);
159coresight_replicator_reg(idfilter1, REPLICATOR_IDFILTER1);
160
161static struct attribute *replicator_mgmt_attrs[] = {
162	&dev_attr_idfilter0.attr,
163	&dev_attr_idfilter1.attr,
164	NULL,
165};
166
167static const struct attribute_group replicator_mgmt_group = {
168	.attrs = replicator_mgmt_attrs,
169	.name = "mgmt",
170};
171
172static const struct attribute_group *replicator_groups[] = {
173	&replicator_mgmt_group,
174	NULL,
175};
176
177static int replicator_probe(struct device *dev, struct resource *res)
178{
179	int ret = 0;
180	struct coresight_platform_data *pdata = NULL;
181	struct replicator_drvdata *drvdata;
182	struct coresight_desc desc = { 0 };
183	void __iomem *base;
184
185	if (is_of_node(dev_fwnode(dev)) &&
186	    of_device_is_compatible(dev->of_node, "arm,coresight-replicator"))
187		dev_warn_once(dev,
188			      "Uses OBSOLETE CoreSight replicator binding\n");
189
190	desc.name = coresight_alloc_device_name(&replicator_devs, dev);
191	if (!desc.name)
192		return -ENOMEM;
193
194	drvdata = devm_kzalloc(dev, sizeof(*drvdata), GFP_KERNEL);
195	if (!drvdata)
196		return -ENOMEM;
197
198	drvdata->atclk = devm_clk_get(dev, "atclk"); /* optional */
199	if (!IS_ERR(drvdata->atclk)) {
200		ret = clk_prepare_enable(drvdata->atclk);
201		if (ret)
202			return ret;
203	}
204
205	/*
206	 * Map the device base for dynamic-replicator, which has been
207	 * validated by AMBA core
208	 */
209	if (res) {
210		base = devm_ioremap_resource(dev, res);
211		if (IS_ERR(base)) {
212			ret = PTR_ERR(base);
213			goto out_disable_clk;
214		}
215		drvdata->base = base;
216		desc.groups = replicator_groups;
 
217	}
218
 
 
 
 
219	dev_set_drvdata(dev, drvdata);
220
221	pdata = coresight_get_platform_data(dev);
222	if (IS_ERR(pdata)) {
223		ret = PTR_ERR(pdata);
224		goto out_disable_clk;
225	}
226	dev->platform_data = pdata;
227
 
228	desc.type = CORESIGHT_DEV_TYPE_LINK;
229	desc.subtype.link_subtype = CORESIGHT_DEV_SUBTYPE_LINK_SPLIT;
230	desc.ops = &replicator_cs_ops;
231	desc.pdata = dev->platform_data;
232	desc.dev = dev;
233
234	drvdata->csdev = coresight_register(&desc);
235	if (IS_ERR(drvdata->csdev)) {
236		ret = PTR_ERR(drvdata->csdev);
237		goto out_disable_clk;
238	}
239
240	replicator_reset(drvdata);
241	pm_runtime_put(dev);
242
243out_disable_clk:
244	if (ret && !IS_ERR_OR_NULL(drvdata->atclk))
245		clk_disable_unprepare(drvdata->atclk);
246	return ret;
247}
248
 
 
 
 
 
 
 
 
249static int static_replicator_probe(struct platform_device *pdev)
250{
251	int ret;
252
253	pm_runtime_get_noresume(&pdev->dev);
254	pm_runtime_set_active(&pdev->dev);
255	pm_runtime_enable(&pdev->dev);
256
257	/* Static replicators do not have programming base */
258	ret = replicator_probe(&pdev->dev, NULL);
259
260	if (ret) {
261		pm_runtime_put_noidle(&pdev->dev);
262		pm_runtime_disable(&pdev->dev);
263	}
264
265	return ret;
266}
267
 
 
 
 
 
 
 
268#ifdef CONFIG_PM
269static int replicator_runtime_suspend(struct device *dev)
270{
271	struct replicator_drvdata *drvdata = dev_get_drvdata(dev);
272
273	if (drvdata && !IS_ERR(drvdata->atclk))
274		clk_disable_unprepare(drvdata->atclk);
275
276	return 0;
277}
278
279static int replicator_runtime_resume(struct device *dev)
280{
281	struct replicator_drvdata *drvdata = dev_get_drvdata(dev);
282
283	if (drvdata && !IS_ERR(drvdata->atclk))
284		clk_prepare_enable(drvdata->atclk);
285
286	return 0;
287}
288#endif
289
290static const struct dev_pm_ops replicator_dev_pm_ops = {
291	SET_RUNTIME_PM_OPS(replicator_runtime_suspend,
292			   replicator_runtime_resume, NULL)
293};
294
295static const struct of_device_id static_replicator_match[] = {
296	{.compatible = "arm,coresight-replicator"},
297	{.compatible = "arm,coresight-static-replicator"},
298	{}
299};
300
 
 
301#ifdef CONFIG_ACPI
302static const struct acpi_device_id static_replicator_acpi_ids[] = {
303	{"ARMHC985", 0}, /* ARM CoreSight Static Replicator */
304	{}
305};
 
 
306#endif
307
308static struct platform_driver static_replicator_driver = {
309	.probe          = static_replicator_probe,
 
310	.driver         = {
311		.name   = "coresight-static-replicator",
 
312		.of_match_table = of_match_ptr(static_replicator_match),
313		.acpi_match_table = ACPI_PTR(static_replicator_acpi_ids),
314		.pm	= &replicator_dev_pm_ops,
315		.suppress_bind_attrs = true,
316	},
317};
318builtin_platform_driver(static_replicator_driver);
319
320static int dynamic_replicator_probe(struct amba_device *adev,
321				    const struct amba_id *id)
322{
323	return replicator_probe(&adev->dev, &adev->res);
324}
325
 
 
 
 
 
326static const struct amba_id dynamic_replicator_ids[] = {
327	{
328		.id     = 0x000bb909,
329		.mask   = 0x000fffff,
330	},
331	{
332		/* Coresight SoC-600 */
333		.id     = 0x000bb9ec,
334		.mask   = 0x000fffff,
335	},
336	{ 0, 0 },
337};
338
 
 
339static struct amba_driver dynamic_replicator_driver = {
340	.drv = {
341		.name	= "coresight-dynamic-replicator",
342		.pm	= &replicator_dev_pm_ops,
 
343		.suppress_bind_attrs = true,
344	},
345	.probe		= dynamic_replicator_probe,
 
346	.id_table	= dynamic_replicator_ids,
347};
348builtin_amba_driver(dynamic_replicator_driver);