isp_v4_1_1.c

  1/* SPDX-License-Identifier: MIT */
  2/*
  3 * Copyright (C) 2024 Advanced Micro Devices, Inc. All rights reserved.
  4 * All Rights Reserved.
  5 *
  6 * Permission is hereby granted, free of charge, to any person obtaining a
  7 * copy of this software and associated documentation files (the
  8 * "Software"), to deal in the Software without restriction, including
  9 * without limitation the rights to use, copy, modify, merge, publish,
 10 * distribute, sub license, and/or sell copies of the Software, and to
 11 * permit persons to whom the Software is furnished to do so, subject to
 12 * the following conditions:
 13 *
 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 16 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
 17 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
 18 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 19 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
 20 * USE OR OTHER DEALINGS IN THE SOFTWARE.
 21 *
 22 * The above copyright notice and this permission notice (including the
 23 * next paragraph) shall be included in all copies or substantial portions
 24 * of the Software.
 25 *
 26 */
 27
 28#include <linux/gpio/machine.h>
 29#include <linux/pm_runtime.h>
 30#include "amdgpu.h"
 31#include "isp_v4_1_1.h"
 32
 33MODULE_FIRMWARE("amdgpu/isp_4_1_1.bin");
 34
 35#define ISP_PERFORMANCE_STATE_LOW 0
 36#define ISP_PERFORMANCE_STATE_HIGH 1
 37
 38#define ISP_HIGH_PERFORMANC_XCLK 788
 39#define ISP_HIGH_PERFORMANC_ICLK 788
 40
 41static const unsigned int isp_4_1_1_int_srcid[MAX_ISP411_INT_SRC] = {
 42	ISP_4_1__SRCID__ISP_RINGBUFFER_WPT9,
 43	ISP_4_1__SRCID__ISP_RINGBUFFER_WPT10,
 44	ISP_4_1__SRCID__ISP_RINGBUFFER_WPT11,
 45	ISP_4_1__SRCID__ISP_RINGBUFFER_WPT12,
 46	ISP_4_1__SRCID__ISP_RINGBUFFER_WPT13,
 47	ISP_4_1__SRCID__ISP_RINGBUFFER_WPT14,
 48	ISP_4_1__SRCID__ISP_RINGBUFFER_WPT15,
 49	ISP_4_1__SRCID__ISP_RINGBUFFER_WPT16
 50};
 51
 52static struct gpiod_lookup_table isp_gpio_table = {
 53	.dev_id = "amd_isp_capture",
 54	.table = {
 55		GPIO_LOOKUP("AMDI0030:00", 85, "enable_isp", GPIO_ACTIVE_HIGH),
 56		{ }
 57	},
 58};
 59
 60static struct gpiod_lookup_table isp_sensor_gpio_table = {
 61	.dev_id = "i2c-ov05c10",
 62	.table = {
 63		GPIO_LOOKUP("amdisp-pinctrl", 0, "enable", GPIO_ACTIVE_HIGH),
 64		{ }
 65	},
 66};
 67
 68static int isp_poweroff(struct generic_pm_domain *genpd)
 69{
 70	struct amdgpu_isp *isp = container_of(genpd, struct amdgpu_isp, ispgpd);
 71	struct amdgpu_device *adev = isp->adev;
 72
 73	return amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_ISP, true, 0);
 74}
 75
 76static int isp_poweron(struct generic_pm_domain *genpd)
 77{
 78	struct amdgpu_isp *isp = container_of(genpd, struct amdgpu_isp, ispgpd);
 79	struct amdgpu_device *adev = isp->adev;
 80
 81	return amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_ISP, false, 0);
 82}
 83
 84static int isp_set_performance_state(struct generic_pm_domain *genpd,
 85				     unsigned int state)
 86{
 87	struct amdgpu_isp *isp = container_of(genpd, struct amdgpu_isp, ispgpd);
 88	struct amdgpu_device *adev = isp->adev;
 89	u32 iclk, xclk;
 90	int ret;
 91
 92	switch (state) {
 93	case ISP_PERFORMANCE_STATE_HIGH:
 94		xclk = ISP_HIGH_PERFORMANC_XCLK;
 95		iclk = ISP_HIGH_PERFORMANC_ICLK;
 96		break;
 97	case ISP_PERFORMANCE_STATE_LOW:
 98		/* isp runs at default lowest clock-rate on power-on, do nothing */
 99		return 0;
100	default:
101		return -EINVAL;
102	}
103
104	ret = amdgpu_dpm_set_soft_freq_range(adev, PP_ISPXCLK, xclk, 0);
105	if (ret) {
106		drm_err(&adev->ddev, "failed to set xclk %u to %u: %d\n",
107			xclk, state, ret);
108		return ret;
109	}
110
111	ret = amdgpu_dpm_set_soft_freq_range(adev, PP_ISPICLK, iclk, 0);
112	if (ret) {
113		drm_err(&adev->ddev, "failed to set iclk %u to %u: %d\n",
114			iclk, state, ret);
115		return ret;
116	}
117
118	return 0;
119}
120
121static int isp_genpd_add_device(struct device *dev, void *data)
122{
123	struct generic_pm_domain *gpd = data;
124	struct platform_device *pdev = container_of(dev, struct platform_device, dev);
125	struct amdgpu_isp *isp = container_of(gpd, struct amdgpu_isp, ispgpd);
126	struct amdgpu_device *adev = isp->adev;
127	int ret;
128
129	if (!pdev)
130		return -EINVAL;
131
132	if (!dev->type->name) {
133		drm_dbg(&adev->ddev, "Invalid device type to add\n");
134		goto exit;
135	}
136
137	if (strcmp(dev->type->name, "mfd_device")) {
138		drm_dbg(&adev->ddev, "Invalid isp mfd device %s to add\n", pdev->mfd_cell->name);
139		goto exit;
140	}
141
142	ret = pm_genpd_add_device(gpd, dev);
143	if (ret) {
144		drm_err(&adev->ddev, "Failed to add dev %s to genpd %d\n",
145			pdev->mfd_cell->name, ret);
146		return -ENODEV;
147	}
148
149	/* The devices will be managed by the pm ops from the parent */
150	dev_pm_syscore_device(dev, true);
151
152exit:
153	/* Continue to add */
154	return 0;
155}
156
157static int isp_genpd_remove_device(struct device *dev, void *data)
158{
159	struct generic_pm_domain *gpd = data;
160	struct platform_device *pdev = container_of(dev, struct platform_device, dev);
161	struct amdgpu_isp *isp = container_of(gpd, struct amdgpu_isp, ispgpd);
162	struct amdgpu_device *adev = isp->adev;
163	int ret;
164
165	if (!pdev)
166		return -EINVAL;
167
168	if (!dev->type->name) {
169		drm_dbg(&adev->ddev, "Invalid device type to remove\n");
170		goto exit;
171	}
172
173	if (strcmp(dev->type->name, "mfd_device")) {
174		drm_dbg(&adev->ddev, "Invalid isp mfd device %s to remove\n",
175			pdev->mfd_cell->name);
176		goto exit;
177	}
178
179	ret = pm_genpd_remove_device(dev);
180	if (ret) {
181		drm_err(&adev->ddev, "Failed to remove dev from genpd %d\n", ret);
182		return -ENODEV;
183	}
184	dev_pm_syscore_device(dev, false);
185
186exit:
187	/* Continue to remove */
188	return 0;
189}
190
191static int isp_suspend_device(struct device *dev, void *data)
192{
193	return pm_runtime_force_suspend(dev);
194}
195
196static int isp_resume_device(struct device *dev, void *data)
197{
198	return pm_runtime_force_resume(dev);
199}
200
201static int isp_v4_1_1_hw_suspend(struct amdgpu_isp *isp)
202{
203	int r;
204
205	r = device_for_each_child(isp->parent, NULL,
206				  isp_suspend_device);
207	if (r)
208		dev_err(isp->parent, "failed to suspend hw devices (%d)\n", r);
209
210	return r;
211}
212
213static int isp_v4_1_1_hw_resume(struct amdgpu_isp *isp)
214{
215	int r;
216
217	r = device_for_each_child(isp->parent, NULL,
218				  isp_resume_device);
219	if (r)
220		dev_err(isp->parent, "failed to resume hw device (%d)\n", r);
221
222	return r;
223}
224
225static int isp_v4_1_1_hw_init(struct amdgpu_isp *isp)
226{
227	const struct software_node *amd_camera_node, *isp4_node;
228	struct amdgpu_device *adev = isp->adev;
229	struct acpi_device *acpi_dev;
230	int idx, int_idx, num_res, r;
231	u64 isp_base;
232
233	if (adev->rmmio_size == 0 || adev->rmmio_size < 0x5289)
234		return -EINVAL;
235
236	r = amdgpu_acpi_get_isp4_dev(&acpi_dev);
237	if (r) {
238		drm_dbg(&adev->ddev, "Invalid isp platform detected (%d)", r);
239		/* allow GPU init to progress */
240		return 0;
241	}
242
243	/* add GPIO resources required for OMNI5C10 sensor */
244	if (!strcmp("OMNI5C10", acpi_device_hid(acpi_dev))) {
245		gpiod_add_lookup_table(&isp_gpio_table);
246		gpiod_add_lookup_table(&isp_sensor_gpio_table);
247	}
248
249	isp_base = adev->rmmio_base;
250
251	isp->ispgpd.name = "ISP_v_4_1_1";
252	isp->ispgpd.power_off = isp_poweroff;
253	isp->ispgpd.power_on = isp_poweron;
254	isp->ispgpd.set_performance_state = isp_set_performance_state;
255
256	r = pm_genpd_init(&isp->ispgpd, NULL, true);
257	if (r) {
258		drm_err(&adev->ddev, "failed to initialize genpd (%d)\n", r);
259		return -EINVAL;
260	}
261
262	isp->isp_cell = kcalloc(3, sizeof(struct mfd_cell), GFP_KERNEL);
263	if (!isp->isp_cell) {
264		r = -ENOMEM;
265		drm_err(&adev->ddev, "isp mfd cell alloc failed (%d)\n", r);
266		goto failure;
267	}
268
269	num_res = MAX_ISP411_MEM_RES + MAX_ISP411_INT_SRC;
270
271	isp->isp_res = kcalloc(num_res, sizeof(struct resource),
272			       GFP_KERNEL);
273	if (!isp->isp_res) {
274		r = -ENOMEM;
275		drm_err(&adev->ddev, "isp mfd resource alloc failed (%d)\n", r);
276		goto failure;
277	}
278
279	isp->isp_pdata = kzalloc(sizeof(*isp->isp_pdata), GFP_KERNEL);
280	if (!isp->isp_pdata) {
281		r = -ENOMEM;
282		drm_err(&adev->ddev, "isp platform data alloc failed (%d)\n", r);
283		goto failure;
284	}
285
286	amd_camera_node = (const struct software_node *)acpi_dev->driver_data;
287	isp4_node = software_node_find_by_name(amd_camera_node, "isp4");
288
289	/* initialize isp platform data */
290	isp->isp_pdata->adev = (void *)adev;
291	isp->isp_pdata->asic_type = adev->asic_type;
292	isp->isp_pdata->base_rmmio_size = adev->rmmio_size;
293
294	isp->isp_res[0].name = "isp_4_1_1_reg";
295	isp->isp_res[0].flags = IORESOURCE_MEM;
296	isp->isp_res[0].start = isp_base;
297	isp->isp_res[0].end = isp_base + ISP_REGS_OFFSET_END;
298
299	isp->isp_res[1].name = "isp_4_1_1_phy0_reg";
300	isp->isp_res[1].flags = IORESOURCE_MEM;
301	isp->isp_res[1].start = isp_base + ISP411_PHY0_OFFSET;
302	isp->isp_res[1].end = isp_base + ISP411_PHY0_OFFSET + ISP411_PHY0_SIZE;
303
304	for (idx = MAX_ISP411_MEM_RES, int_idx = 0; idx < num_res; idx++, int_idx++) {
305		isp->isp_res[idx].name = "isp_4_1_1_irq";
306		isp->isp_res[idx].flags = IORESOURCE_IRQ;
307		isp->isp_res[idx].start =
308			amdgpu_irq_create_mapping(adev, isp_4_1_1_int_srcid[int_idx]);
309		isp->isp_res[idx].end =
310			isp->isp_res[idx].start;
311	}
312
313	isp->isp_cell[0].name = "amd_isp_capture";
314	isp->isp_cell[0].num_resources = num_res;
315	isp->isp_cell[0].resources = &isp->isp_res[0];
316	isp->isp_cell[0].platform_data = isp->isp_pdata;
317	isp->isp_cell[0].swnode = isp4_node;
318	isp->isp_cell[0].pdata_size = sizeof(struct isp_platform_data);
319
320	/* initialize isp i2c platform data */
321	isp->isp_i2c_res = kcalloc(1, sizeof(struct resource), GFP_KERNEL);
322	if (!isp->isp_i2c_res) {
323		r = -ENOMEM;
324		drm_err(&adev->ddev, "isp mfd res alloc failed (%d)\n", r);
325		goto failure;
326	}
327
328	isp->isp_i2c_res[0].name = "isp_i2c0_reg";
329	isp->isp_i2c_res[0].flags = IORESOURCE_MEM;
330	isp->isp_i2c_res[0].start = isp_base + ISP411_I2C0_OFFSET;
331	isp->isp_i2c_res[0].end = isp_base + ISP411_I2C0_OFFSET + ISP411_I2C0_SIZE;
332
333	isp->isp_cell[1].name = "amd_isp_i2c_designware";
334	isp->isp_cell[1].num_resources = 1;
335	isp->isp_cell[1].resources = &isp->isp_i2c_res[0];
336	isp->isp_cell[1].platform_data = isp->isp_pdata;
337	isp->isp_cell[1].pdata_size = sizeof(struct isp_platform_data);
338
339	/* initialize isp gpiochip platform data */
340	isp->isp_gpio_res = kcalloc(1, sizeof(struct resource), GFP_KERNEL);
341	if (!isp->isp_gpio_res) {
342		r = -ENOMEM;
343		drm_err(&adev->ddev, "isp gpio resource alloc failed (%d)\n", r);
344		goto failure;
345	}
346
347	isp->isp_gpio_res[0].name = "isp_gpio_reg";
348	isp->isp_gpio_res[0].flags = IORESOURCE_MEM;
349	isp->isp_gpio_res[0].start = isp_base + ISP411_GPIO_SENSOR_OFFSET;
350	isp->isp_gpio_res[0].end = isp_base + ISP411_GPIO_SENSOR_OFFSET +
351				   ISP411_GPIO_SENSOR_SIZE;
352
353	isp->isp_cell[2].name = "amdisp-pinctrl";
354	isp->isp_cell[2].num_resources = 1;
355	isp->isp_cell[2].resources = &isp->isp_gpio_res[0];
356	isp->isp_cell[2].platform_data = isp->isp_pdata;
357	isp->isp_cell[2].pdata_size = sizeof(struct isp_platform_data);
358
359	/* add only amd_isp_capture and amd_isp_i2c_designware to genpd */
360	r = mfd_add_hotplug_devices(isp->parent, isp->isp_cell, 2);
361	if (r) {
362		drm_err(&adev->ddev, "add mfd hotplug device failed (%d)\n", r);
363		goto failure;
364	}
365
366	r = device_for_each_child(isp->parent, &isp->ispgpd,
367				  isp_genpd_add_device);
368	if (r) {
369		drm_err(&adev->ddev, "failed to add devices to genpd (%d)\n", r);
370		goto failure;
371	}
372
373	r = mfd_add_hotplug_devices(isp->parent, &isp->isp_cell[2], 1);
374	if (r) {
375		drm_err(&adev->ddev, "add pinctl hotplug device failed (%d)\n", r);
376		goto failure;
377	}
378
379	return 0;
380
381failure:
382
383	kfree(isp->isp_pdata);
384	kfree(isp->isp_res);
385	kfree(isp->isp_cell);
386	kfree(isp->isp_i2c_res);
387	kfree(isp->isp_gpio_res);
388
389	return r;
390}
391
392static int isp_v4_1_1_hw_fini(struct amdgpu_isp *isp)
393{
394	device_for_each_child(isp->parent, NULL,
395			      isp_genpd_remove_device);
396
397	mfd_remove_devices(isp->parent);
398
399	kfree(isp->isp_res);
400	kfree(isp->isp_cell);
401	kfree(isp->isp_pdata);
402	kfree(isp->isp_i2c_res);
403	kfree(isp->isp_gpio_res);
404
405	return 0;
406}
407
408static const struct isp_funcs isp_v4_1_1_funcs = {
409	.hw_init = isp_v4_1_1_hw_init,
410	.hw_fini = isp_v4_1_1_hw_fini,
411	.hw_suspend = isp_v4_1_1_hw_suspend,
412	.hw_resume = isp_v4_1_1_hw_resume,
413};
414
415void isp_v4_1_1_set_isp_funcs(struct amdgpu_isp *isp)
416{
417	isp->funcs = &isp_v4_1_1_funcs;
418}