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
33 MODULE_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
41 static 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
52 static 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
60 static 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
isp_poweroff(struct generic_pm_domain * genpd)68 static 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
isp_poweron(struct generic_pm_domain * genpd)76 static 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
isp_set_performance_state(struct generic_pm_domain * genpd,unsigned int state)84 static 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
isp_genpd_add_device(struct device * dev,void * data)121 static 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
152 exit:
153 /* Continue to add */
154 return 0;
155 }
156
isp_genpd_remove_device(struct device * dev,void * data)157 static 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
186 exit:
187 /* Continue to remove */
188 return 0;
189 }
190
isp_suspend_device(struct device * dev,void * data)191 static int isp_suspend_device(struct device *dev, void *data)
192 {
193 return pm_runtime_force_suspend(dev);
194 }
195
isp_resume_device(struct device * dev,void * data)196 static int isp_resume_device(struct device *dev, void *data)
197 {
198 return pm_runtime_force_resume(dev);
199 }
200
isp_v4_1_1_hw_suspend(struct amdgpu_isp * isp)201 static 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
isp_v4_1_1_hw_resume(struct amdgpu_isp * isp)213 static 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
isp_v4_1_1_hw_init(struct amdgpu_isp * isp)225 static 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 = kzalloc_objs(struct mfd_cell, 3);
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 = kzalloc_objs(struct resource, num_res);
272 if (!isp->isp_res) {
273 r = -ENOMEM;
274 drm_err(&adev->ddev, "isp mfd resource alloc failed (%d)\n", r);
275 goto failure;
276 }
277
278 isp->isp_pdata = kzalloc_obj(*isp->isp_pdata);
279 if (!isp->isp_pdata) {
280 r = -ENOMEM;
281 drm_err(&adev->ddev, "isp platform data alloc failed (%d)\n", r);
282 goto failure;
283 }
284
285 amd_camera_node = (const struct software_node *)acpi_dev->driver_data;
286 isp4_node = software_node_find_by_name(amd_camera_node, "isp4");
287
288 /* initialize isp platform data */
289 isp->isp_pdata->adev = (void *)adev;
290 isp->isp_pdata->asic_type = adev->asic_type;
291 isp->isp_pdata->base_rmmio_size = adev->rmmio_size;
292
293 isp->isp_res[0].name = "isp_4_1_1_reg";
294 isp->isp_res[0].flags = IORESOURCE_MEM;
295 isp->isp_res[0].start = isp_base;
296 isp->isp_res[0].end = isp_base + ISP_REGS_OFFSET_END;
297
298 isp->isp_res[1].name = "isp_4_1_1_phy0_reg";
299 isp->isp_res[1].flags = IORESOURCE_MEM;
300 isp->isp_res[1].start = isp_base + ISP411_PHY0_OFFSET;
301 isp->isp_res[1].end = isp_base + ISP411_PHY0_OFFSET + ISP411_PHY0_SIZE;
302
303 for (idx = MAX_ISP411_MEM_RES, int_idx = 0; idx < num_res; idx++, int_idx++) {
304 isp->isp_res[idx].name = "isp_4_1_1_irq";
305 isp->isp_res[idx].flags = IORESOURCE_IRQ;
306 isp->isp_res[idx].start =
307 amdgpu_irq_create_mapping(adev, isp_4_1_1_int_srcid[int_idx]);
308 isp->isp_res[idx].end =
309 isp->isp_res[idx].start;
310 }
311
312 isp->isp_cell[0].name = "amd_isp_capture";
313 isp->isp_cell[0].num_resources = num_res;
314 isp->isp_cell[0].resources = &isp->isp_res[0];
315 isp->isp_cell[0].platform_data = isp->isp_pdata;
316 isp->isp_cell[0].swnode = isp4_node;
317 isp->isp_cell[0].pdata_size = sizeof(struct isp_platform_data);
318
319 /* initialize isp i2c platform data */
320 isp->isp_i2c_res = kzalloc_objs(struct resource, 1);
321 if (!isp->isp_i2c_res) {
322 r = -ENOMEM;
323 drm_err(&adev->ddev, "isp mfd res alloc failed (%d)\n", r);
324 goto failure;
325 }
326
327 isp->isp_i2c_res[0].name = "isp_i2c0_reg";
328 isp->isp_i2c_res[0].flags = IORESOURCE_MEM;
329 isp->isp_i2c_res[0].start = isp_base + ISP411_I2C0_OFFSET;
330 isp->isp_i2c_res[0].end = isp_base + ISP411_I2C0_OFFSET + ISP411_I2C0_SIZE;
331
332 isp->isp_cell[1].name = "amd_isp_i2c_designware";
333 isp->isp_cell[1].num_resources = 1;
334 isp->isp_cell[1].resources = &isp->isp_i2c_res[0];
335 isp->isp_cell[1].platform_data = isp->isp_pdata;
336 isp->isp_cell[1].pdata_size = sizeof(struct isp_platform_data);
337
338 /* initialize isp gpiochip platform data */
339 isp->isp_gpio_res = kzalloc_objs(struct resource, 1);
340 if (!isp->isp_gpio_res) {
341 r = -ENOMEM;
342 drm_err(&adev->ddev, "isp gpio resource alloc failed (%d)\n", r);
343 goto failure;
344 }
345
346 isp->isp_gpio_res[0].name = "isp_gpio_reg";
347 isp->isp_gpio_res[0].flags = IORESOURCE_MEM;
348 isp->isp_gpio_res[0].start = isp_base + ISP411_GPIO_SENSOR_OFFSET;
349 isp->isp_gpio_res[0].end = isp_base + ISP411_GPIO_SENSOR_OFFSET +
350 ISP411_GPIO_SENSOR_SIZE;
351
352 isp->isp_cell[2].name = "amdisp-pinctrl";
353 isp->isp_cell[2].num_resources = 1;
354 isp->isp_cell[2].resources = &isp->isp_gpio_res[0];
355 isp->isp_cell[2].platform_data = isp->isp_pdata;
356 isp->isp_cell[2].pdata_size = sizeof(struct isp_platform_data);
357
358 /* add only amd_isp_capture and amd_isp_i2c_designware to genpd */
359 r = mfd_add_hotplug_devices(isp->parent, isp->isp_cell, 2);
360 if (r) {
361 drm_err(&adev->ddev, "add mfd hotplug device failed (%d)\n", r);
362 goto failure;
363 }
364
365 r = device_for_each_child(isp->parent, &isp->ispgpd,
366 isp_genpd_add_device);
367 if (r) {
368 drm_err(&adev->ddev, "failed to add devices to genpd (%d)\n", r);
369 goto failure;
370 }
371
372 r = mfd_add_hotplug_devices(isp->parent, &isp->isp_cell[2], 1);
373 if (r) {
374 drm_err(&adev->ddev, "add pinctl hotplug device failed (%d)\n", r);
375 goto failure;
376 }
377
378 return 0;
379
380 failure:
381
382 kfree(isp->isp_pdata);
383 kfree(isp->isp_res);
384 kfree(isp->isp_cell);
385 kfree(isp->isp_i2c_res);
386 kfree(isp->isp_gpio_res);
387
388 return r;
389 }
390
isp_v4_1_1_hw_fini(struct amdgpu_isp * isp)391 static int isp_v4_1_1_hw_fini(struct amdgpu_isp *isp)
392 {
393 device_for_each_child(isp->parent, NULL,
394 isp_genpd_remove_device);
395
396 mfd_remove_devices(isp->parent);
397
398 kfree(isp->isp_res);
399 kfree(isp->isp_cell);
400 kfree(isp->isp_pdata);
401 kfree(isp->isp_i2c_res);
402 kfree(isp->isp_gpio_res);
403
404 return 0;
405 }
406
407 static const struct isp_funcs isp_v4_1_1_funcs = {
408 .hw_init = isp_v4_1_1_hw_init,
409 .hw_fini = isp_v4_1_1_hw_fini,
410 .hw_suspend = isp_v4_1_1_hw_suspend,
411 .hw_resume = isp_v4_1_1_hw_resume,
412 };
413
isp_v4_1_1_set_isp_funcs(struct amdgpu_isp * isp)414 void isp_v4_1_1_set_isp_funcs(struct amdgpu_isp *isp)
415 {
416 isp->funcs = &isp_v4_1_1_funcs;
417 }
418