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 "amdgpu.h"
30 #include "isp_v4_1_1.h"
31
32 #define ISP_PERFORMANCE_STATE_LOW 0
33 #define ISP_PERFORMANCE_STATE_HIGH 1
34
35 #define ISP_HIGH_PERFORMANC_XCLK 788
36 #define ISP_HIGH_PERFORMANC_ICLK 788
37
38 static const unsigned int isp_4_1_1_int_srcid[MAX_ISP411_INT_SRC] = {
39 ISP_4_1__SRCID__ISP_RINGBUFFER_WPT9,
40 ISP_4_1__SRCID__ISP_RINGBUFFER_WPT10,
41 ISP_4_1__SRCID__ISP_RINGBUFFER_WPT11,
42 ISP_4_1__SRCID__ISP_RINGBUFFER_WPT12,
43 ISP_4_1__SRCID__ISP_RINGBUFFER_WPT13,
44 ISP_4_1__SRCID__ISP_RINGBUFFER_WPT14,
45 ISP_4_1__SRCID__ISP_RINGBUFFER_WPT15,
46 ISP_4_1__SRCID__ISP_RINGBUFFER_WPT16
47 };
48
49 static struct gpiod_lookup_table isp_gpio_table = {
50 .dev_id = "amd_isp_capture",
51 .table = {
52 GPIO_LOOKUP("AMDI0030:00", 85, "enable_isp", GPIO_ACTIVE_HIGH),
53 { }
54 },
55 };
56
57 static struct gpiod_lookup_table isp_sensor_gpio_table = {
58 .dev_id = "i2c-ov05c10",
59 .table = {
60 GPIO_LOOKUP("amdisp-pinctrl", 0, "enable", GPIO_ACTIVE_HIGH),
61 { }
62 },
63 };
64
isp_poweroff(struct generic_pm_domain * genpd)65 static int isp_poweroff(struct generic_pm_domain *genpd)
66 {
67 struct amdgpu_isp *isp = container_of(genpd, struct amdgpu_isp, ispgpd);
68 struct amdgpu_device *adev = isp->adev;
69
70 return amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_ISP, true, 0);
71 }
72
isp_poweron(struct generic_pm_domain * genpd)73 static int isp_poweron(struct generic_pm_domain *genpd)
74 {
75 struct amdgpu_isp *isp = container_of(genpd, struct amdgpu_isp, ispgpd);
76 struct amdgpu_device *adev = isp->adev;
77
78 return amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_ISP, false, 0);
79 }
80
isp_set_performance_state(struct generic_pm_domain * genpd,unsigned int state)81 static int isp_set_performance_state(struct generic_pm_domain *genpd,
82 unsigned int state)
83 {
84 struct amdgpu_isp *isp = container_of(genpd, struct amdgpu_isp, ispgpd);
85 struct amdgpu_device *adev = isp->adev;
86 u32 iclk, xclk;
87 int ret;
88
89 switch (state) {
90 case ISP_PERFORMANCE_STATE_HIGH:
91 xclk = ISP_HIGH_PERFORMANC_XCLK;
92 iclk = ISP_HIGH_PERFORMANC_ICLK;
93 break;
94 case ISP_PERFORMANCE_STATE_LOW:
95 /* isp runs at default lowest clock-rate on power-on, do nothing */
96 return 0;
97 default:
98 return -EINVAL;
99 }
100
101 ret = amdgpu_dpm_set_soft_freq_range(adev, PP_ISPXCLK, xclk, 0);
102 if (ret) {
103 drm_err(&adev->ddev, "failed to set xclk %u to %u: %d\n",
104 xclk, state, ret);
105 return ret;
106 }
107
108 ret = amdgpu_dpm_set_soft_freq_range(adev, PP_ISPICLK, iclk, 0);
109 if (ret) {
110 drm_err(&adev->ddev, "failed to set iclk %u to %u: %d\n",
111 iclk, state, ret);
112 return ret;
113 }
114
115 return 0;
116 }
117
isp_genpd_add_device(struct device * dev,void * data)118 static int isp_genpd_add_device(struct device *dev, void *data)
119 {
120 struct generic_pm_domain *gpd = data;
121 struct platform_device *pdev = container_of(dev, struct platform_device, dev);
122 struct amdgpu_isp *isp = container_of(gpd, struct amdgpu_isp, ispgpd);
123 struct amdgpu_device *adev = isp->adev;
124 int ret;
125
126 if (!pdev)
127 return -EINVAL;
128
129 if (!dev->type->name) {
130 drm_dbg(&adev->ddev, "Invalid device type to add\n");
131 goto exit;
132 }
133
134 if (strcmp(dev->type->name, "mfd_device")) {
135 drm_dbg(&adev->ddev, "Invalid isp mfd device %s to add\n", pdev->mfd_cell->name);
136 goto exit;
137 }
138
139 ret = pm_genpd_add_device(gpd, dev);
140 if (ret) {
141 drm_err(&adev->ddev, "Failed to add dev %s to genpd %d\n",
142 pdev->mfd_cell->name, ret);
143 return -ENODEV;
144 }
145
146 exit:
147 /* Continue to add */
148 return 0;
149 }
150
isp_genpd_remove_device(struct device * dev,void * data)151 static int isp_genpd_remove_device(struct device *dev, void *data)
152 {
153 struct generic_pm_domain *gpd = data;
154 struct platform_device *pdev = container_of(dev, struct platform_device, dev);
155 struct amdgpu_isp *isp = container_of(gpd, struct amdgpu_isp, ispgpd);
156 struct amdgpu_device *adev = isp->adev;
157 int ret;
158
159 if (!pdev)
160 return -EINVAL;
161
162 if (!dev->type->name) {
163 drm_dbg(&adev->ddev, "Invalid device type to remove\n");
164 goto exit;
165 }
166
167 if (strcmp(dev->type->name, "mfd_device")) {
168 drm_dbg(&adev->ddev, "Invalid isp mfd device %s to remove\n",
169 pdev->mfd_cell->name);
170 goto exit;
171 }
172
173 ret = pm_genpd_remove_device(dev);
174 if (ret) {
175 drm_err(&adev->ddev, "Failed to remove dev from genpd %d\n", ret);
176 return -ENODEV;
177 }
178
179 exit:
180 /* Continue to remove */
181 return 0;
182 }
183
isp_v4_1_1_hw_init(struct amdgpu_isp * isp)184 static int isp_v4_1_1_hw_init(struct amdgpu_isp *isp)
185 {
186 const struct software_node *amd_camera_node, *isp4_node;
187 struct amdgpu_device *adev = isp->adev;
188 struct acpi_device *acpi_dev;
189 int idx, int_idx, num_res, r;
190 u64 isp_base;
191
192 if (adev->rmmio_size == 0 || adev->rmmio_size < 0x5289)
193 return -EINVAL;
194
195 r = amdgpu_acpi_get_isp4_dev(&acpi_dev);
196 if (r) {
197 drm_dbg(&adev->ddev, "Invalid isp platform detected (%d)", r);
198 /* allow GPU init to progress */
199 return 0;
200 }
201
202 /* add GPIO resources required for OMNI5C10 sensor */
203 if (!strcmp("OMNI5C10", acpi_device_hid(acpi_dev))) {
204 gpiod_add_lookup_table(&isp_gpio_table);
205 gpiod_add_lookup_table(&isp_sensor_gpio_table);
206 }
207
208 isp_base = adev->rmmio_base;
209
210 isp->ispgpd.name = "ISP_v_4_1_1";
211 isp->ispgpd.power_off = isp_poweroff;
212 isp->ispgpd.power_on = isp_poweron;
213 isp->ispgpd.set_performance_state = isp_set_performance_state;
214
215 r = pm_genpd_init(&isp->ispgpd, NULL, true);
216 if (r) {
217 drm_err(&adev->ddev, "failed to initialize genpd (%d)\n", r);
218 return -EINVAL;
219 }
220
221 isp->isp_cell = kcalloc(3, sizeof(struct mfd_cell), GFP_KERNEL);
222 if (!isp->isp_cell) {
223 r = -ENOMEM;
224 drm_err(&adev->ddev, "isp mfd cell alloc failed (%d)\n", r);
225 goto failure;
226 }
227
228 num_res = MAX_ISP411_MEM_RES + MAX_ISP411_INT_SRC;
229
230 isp->isp_res = kcalloc(num_res, sizeof(struct resource),
231 GFP_KERNEL);
232 if (!isp->isp_res) {
233 r = -ENOMEM;
234 drm_err(&adev->ddev, "isp mfd resource alloc failed (%d)\n", r);
235 goto failure;
236 }
237
238 isp->isp_pdata = kzalloc(sizeof(*isp->isp_pdata), GFP_KERNEL);
239 if (!isp->isp_pdata) {
240 r = -ENOMEM;
241 drm_err(&adev->ddev, "isp platform data alloc failed (%d)\n", r);
242 goto failure;
243 }
244
245 amd_camera_node = (const struct software_node *)acpi_dev->driver_data;
246 isp4_node = software_node_find_by_name(amd_camera_node, "isp4");
247
248 /* initialize isp platform data */
249 isp->isp_pdata->adev = (void *)adev;
250 isp->isp_pdata->asic_type = adev->asic_type;
251 isp->isp_pdata->base_rmmio_size = adev->rmmio_size;
252
253 isp->isp_res[0].name = "isp_4_1_1_reg";
254 isp->isp_res[0].flags = IORESOURCE_MEM;
255 isp->isp_res[0].start = isp_base;
256 isp->isp_res[0].end = isp_base + ISP_REGS_OFFSET_END;
257
258 isp->isp_res[1].name = "isp_4_1_1_phy0_reg";
259 isp->isp_res[1].flags = IORESOURCE_MEM;
260 isp->isp_res[1].start = isp_base + ISP411_PHY0_OFFSET;
261 isp->isp_res[1].end = isp_base + ISP411_PHY0_OFFSET + ISP411_PHY0_SIZE;
262
263 for (idx = MAX_ISP411_MEM_RES, int_idx = 0; idx < num_res; idx++, int_idx++) {
264 isp->isp_res[idx].name = "isp_4_1_1_irq";
265 isp->isp_res[idx].flags = IORESOURCE_IRQ;
266 isp->isp_res[idx].start =
267 amdgpu_irq_create_mapping(adev, isp_4_1_1_int_srcid[int_idx]);
268 isp->isp_res[idx].end =
269 isp->isp_res[idx].start;
270 }
271
272 isp->isp_cell[0].name = "amd_isp_capture";
273 isp->isp_cell[0].num_resources = num_res;
274 isp->isp_cell[0].resources = &isp->isp_res[0];
275 isp->isp_cell[0].platform_data = isp->isp_pdata;
276 isp->isp_cell[0].swnode = isp4_node;
277 isp->isp_cell[0].pdata_size = sizeof(struct isp_platform_data);
278
279 /* initialize isp i2c platform data */
280 isp->isp_i2c_res = kcalloc(1, sizeof(struct resource), GFP_KERNEL);
281 if (!isp->isp_i2c_res) {
282 r = -ENOMEM;
283 drm_err(&adev->ddev, "isp mfd res alloc failed (%d)\n", r);
284 goto failure;
285 }
286
287 isp->isp_i2c_res[0].name = "isp_i2c0_reg";
288 isp->isp_i2c_res[0].flags = IORESOURCE_MEM;
289 isp->isp_i2c_res[0].start = isp_base + ISP411_I2C0_OFFSET;
290 isp->isp_i2c_res[0].end = isp_base + ISP411_I2C0_OFFSET + ISP411_I2C0_SIZE;
291
292 isp->isp_cell[1].name = "amd_isp_i2c_designware";
293 isp->isp_cell[1].num_resources = 1;
294 isp->isp_cell[1].resources = &isp->isp_i2c_res[0];
295 isp->isp_cell[1].platform_data = isp->isp_pdata;
296 isp->isp_cell[1].pdata_size = sizeof(struct isp_platform_data);
297
298 /* initialize isp gpiochip platform data */
299 isp->isp_gpio_res = kcalloc(1, sizeof(struct resource), GFP_KERNEL);
300 if (!isp->isp_gpio_res) {
301 r = -ENOMEM;
302 drm_err(&adev->ddev, "isp gpio resource alloc failed (%d)\n", r);
303 goto failure;
304 }
305
306 isp->isp_gpio_res[0].name = "isp_gpio_reg";
307 isp->isp_gpio_res[0].flags = IORESOURCE_MEM;
308 isp->isp_gpio_res[0].start = isp_base + ISP411_GPIO_SENSOR_OFFSET;
309 isp->isp_gpio_res[0].end = isp_base + ISP411_GPIO_SENSOR_OFFSET +
310 ISP411_GPIO_SENSOR_SIZE;
311
312 isp->isp_cell[2].name = "amdisp-pinctrl";
313 isp->isp_cell[2].num_resources = 1;
314 isp->isp_cell[2].resources = &isp->isp_gpio_res[0];
315 isp->isp_cell[2].platform_data = isp->isp_pdata;
316 isp->isp_cell[2].pdata_size = sizeof(struct isp_platform_data);
317
318 /* add only amd_isp_capture and amd_isp_i2c_designware to genpd */
319 r = mfd_add_hotplug_devices(isp->parent, isp->isp_cell, 2);
320 if (r) {
321 drm_err(&adev->ddev, "add mfd hotplug device failed (%d)\n", r);
322 goto failure;
323 }
324
325 r = device_for_each_child(isp->parent, &isp->ispgpd,
326 isp_genpd_add_device);
327 if (r) {
328 drm_err(&adev->ddev, "failed to add devices to genpd (%d)\n", r);
329 goto failure;
330 }
331
332 r = mfd_add_hotplug_devices(isp->parent, &isp->isp_cell[2], 1);
333 if (r) {
334 drm_err(&adev->ddev, "add pinctl hotplug device failed (%d)\n", r);
335 goto failure;
336 }
337
338 return 0;
339
340 failure:
341
342 kfree(isp->isp_pdata);
343 kfree(isp->isp_res);
344 kfree(isp->isp_cell);
345 kfree(isp->isp_i2c_res);
346 kfree(isp->isp_gpio_res);
347
348 return r;
349 }
350
isp_v4_1_1_hw_fini(struct amdgpu_isp * isp)351 static int isp_v4_1_1_hw_fini(struct amdgpu_isp *isp)
352 {
353 device_for_each_child(isp->parent, NULL,
354 isp_genpd_remove_device);
355
356 mfd_remove_devices(isp->parent);
357
358 kfree(isp->isp_res);
359 kfree(isp->isp_cell);
360 kfree(isp->isp_pdata);
361 kfree(isp->isp_i2c_res);
362 kfree(isp->isp_gpio_res);
363
364 return 0;
365 }
366
367 static const struct isp_funcs isp_v4_1_1_funcs = {
368 .hw_init = isp_v4_1_1_hw_init,
369 .hw_fini = isp_v4_1_1_hw_fini,
370 };
371
isp_v4_1_1_set_isp_funcs(struct amdgpu_isp * isp)372 void isp_v4_1_1_set_isp_funcs(struct amdgpu_isp *isp)
373 {
374 isp->funcs = &isp_v4_1_1_funcs;
375 }
376