1 // SPDX-License-Identifier: ISC
2 /* Copyright (C) 2020 MediaTek Inc.
3  *
4  */
5 
6 #include <linux/kernel.h>
7 #include <linux/module.h>
8 #include <linux/pci.h>
9 
10 #include "mt7921.h"
11 #include "../mt76_connac2_mac.h"
12 #include "../dma.h"
13 #include "mcu.h"
14 
15 static const struct pci_device_id mt7921_pci_device_table[] = {
16 	{ PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x7961),
17 		.driver_data = (kernel_ulong_t)MT7921_FIRMWARE_WM },
18 	{ PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x7922),
19 		.driver_data = (kernel_ulong_t)MT7922_FIRMWARE_WM },
20 	{ PCI_DEVICE(PCI_VENDOR_ID_ITTIM, 0x7922),
21 		.driver_data = (kernel_ulong_t)MT7922_FIRMWARE_WM },
22 	{ PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x0608),
23 		.driver_data = (kernel_ulong_t)MT7921_FIRMWARE_WM },
24 	{ PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x0616),
25 		.driver_data = (kernel_ulong_t)MT7922_FIRMWARE_WM },
26 	{ },
27 };
28 
29 static bool mt7921_disable_aspm;
30 module_param_named(disable_aspm, mt7921_disable_aspm, bool, 0644);
31 MODULE_PARM_DESC(disable_aspm, "disable PCI ASPM support");
32 
mt7921e_init_reset(struct mt792x_dev * dev)33 static int mt7921e_init_reset(struct mt792x_dev *dev)
34 {
35 	return mt792x_wpdma_reset(dev, true);
36 }
37 
mt7921e_unregister_device(struct mt792x_dev * dev)38 static void mt7921e_unregister_device(struct mt792x_dev *dev)
39 {
40 	int i;
41 	struct mt76_connac_pm *pm = &dev->pm;
42 
43 	cancel_work_sync(&dev->init_work);
44 	mt76_unregister_device(&dev->mt76);
45 	mt76_for_each_q_rx(&dev->mt76, i)
46 		napi_disable(&dev->mt76.napi[i]);
47 	cancel_delayed_work_sync(&pm->ps_work);
48 	cancel_work_sync(&pm->wake_work);
49 	cancel_work_sync(&dev->reset_work);
50 
51 	mt76_connac2_tx_token_put(&dev->mt76);
52 	__mt792x_mcu_drv_pmctrl(dev);
53 	mt792x_dma_cleanup(dev);
54 	mt792x_wfsys_reset(dev);
55 	skb_queue_purge(&dev->mt76.mcu.res_q);
56 
57 	tasklet_disable(&dev->mt76.irq_tasklet);
58 }
59 
__mt7921_reg_addr(struct mt792x_dev * dev,u32 addr)60 static u32 __mt7921_reg_addr(struct mt792x_dev *dev, u32 addr)
61 {
62 	static const struct mt76_connac_reg_map fixed_map[] = {
63 		{ 0x820d0000, 0x30000, 0x10000 }, /* WF_LMAC_TOP (WF_WTBLON) */
64 		{ 0x820ed000, 0x24800, 0x00800 }, /* WF_LMAC_TOP BN0 (WF_MIB) */
65 		{ 0x820e4000, 0x21000, 0x00400 }, /* WF_LMAC_TOP BN0 (WF_TMAC) */
66 		{ 0x820e7000, 0x21e00, 0x00200 }, /* WF_LMAC_TOP BN0 (WF_DMA) */
67 		{ 0x820eb000, 0x24200, 0x00400 }, /* WF_LMAC_TOP BN0 (WF_LPON) */
68 		{ 0x820e2000, 0x20800, 0x00400 }, /* WF_LMAC_TOP BN0 (WF_AGG) */
69 		{ 0x820e3000, 0x20c00, 0x00400 }, /* WF_LMAC_TOP BN0 (WF_ARB) */
70 		{ 0x820e5000, 0x21400, 0x00800 }, /* WF_LMAC_TOP BN0 (WF_RMAC) */
71 		{ 0x00400000, 0x80000, 0x10000 }, /* WF_MCU_SYSRAM */
72 		{ 0x00410000, 0x90000, 0x10000 }, /* WF_MCU_SYSRAM (configure register) */
73 		{ 0x40000000, 0x70000, 0x10000 }, /* WF_UMAC_SYSRAM */
74 		{ 0x54000000, 0x02000, 0x01000 }, /* WFDMA PCIE0 MCU DMA0 */
75 		{ 0x55000000, 0x03000, 0x01000 }, /* WFDMA PCIE0 MCU DMA1 */
76 		{ 0x58000000, 0x06000, 0x01000 }, /* WFDMA PCIE1 MCU DMA0 (MEM_DMA) */
77 		{ 0x59000000, 0x07000, 0x01000 }, /* WFDMA PCIE1 MCU DMA1 */
78 		{ 0x7c000000, 0xf0000, 0x10000 }, /* CONN_INFRA */
79 		{ 0x7c020000, 0xd0000, 0x10000 }, /* CONN_INFRA, WFDMA */
80 		{ 0x7c060000, 0xe0000, 0x10000 }, /* CONN_INFRA, conn_host_csr_top */
81 		{ 0x80020000, 0xb0000, 0x10000 }, /* WF_TOP_MISC_OFF */
82 		{ 0x81020000, 0xc0000, 0x10000 }, /* WF_TOP_MISC_ON */
83 		{ 0x820c0000, 0x08000, 0x04000 }, /* WF_UMAC_TOP (PLE) */
84 		{ 0x820c8000, 0x0c000, 0x02000 }, /* WF_UMAC_TOP (PSE) */
85 		{ 0x820cc000, 0x0e000, 0x01000 }, /* WF_UMAC_TOP (PP) */
86 		{ 0x820cd000, 0x0f000, 0x01000 }, /* WF_MDP_TOP */
87 		{ 0x74030000, 0x10000, 0x10000 }, /* PCIE_MAC_IREG */
88 		{ 0x820ce000, 0x21c00, 0x00200 }, /* WF_LMAC_TOP (WF_SEC) */
89 		{ 0x820cf000, 0x22000, 0x01000 }, /* WF_LMAC_TOP (WF_PF) */
90 		{ 0x820e0000, 0x20000, 0x00400 }, /* WF_LMAC_TOP BN0 (WF_CFG) */
91 		{ 0x820e1000, 0x20400, 0x00200 }, /* WF_LMAC_TOP BN0 (WF_TRB) */
92 		{ 0x820e9000, 0x23400, 0x00200 }, /* WF_LMAC_TOP BN0 (WF_WTBLOFF) */
93 		{ 0x820ea000, 0x24000, 0x00200 }, /* WF_LMAC_TOP BN0 (WF_ETBF) */
94 		{ 0x820ec000, 0x24600, 0x00200 }, /* WF_LMAC_TOP BN0 (WF_INT) */
95 		{ 0x820f0000, 0xa0000, 0x00400 }, /* WF_LMAC_TOP BN1 (WF_CFG) */
96 		{ 0x820f1000, 0xa0600, 0x00200 }, /* WF_LMAC_TOP BN1 (WF_TRB) */
97 		{ 0x820f2000, 0xa0800, 0x00400 }, /* WF_LMAC_TOP BN1 (WF_AGG) */
98 		{ 0x820f3000, 0xa0c00, 0x00400 }, /* WF_LMAC_TOP BN1 (WF_ARB) */
99 		{ 0x820f4000, 0xa1000, 0x00400 }, /* WF_LMAC_TOP BN1 (WF_TMAC) */
100 		{ 0x820f5000, 0xa1400, 0x00800 }, /* WF_LMAC_TOP BN1 (WF_RMAC) */
101 		{ 0x820f7000, 0xa1e00, 0x00200 }, /* WF_LMAC_TOP BN1 (WF_DMA) */
102 		{ 0x820f9000, 0xa3400, 0x00200 }, /* WF_LMAC_TOP BN1 (WF_WTBLOFF) */
103 		{ 0x820fa000, 0xa4000, 0x00200 }, /* WF_LMAC_TOP BN1 (WF_ETBF) */
104 		{ 0x820fb000, 0xa4200, 0x00400 }, /* WF_LMAC_TOP BN1 (WF_LPON) */
105 		{ 0x820fc000, 0xa4600, 0x00200 }, /* WF_LMAC_TOP BN1 (WF_INT) */
106 		{ 0x820fd000, 0xa4800, 0x00800 }, /* WF_LMAC_TOP BN1 (WF_MIB) */
107 	};
108 	int i;
109 
110 	if (addr < 0x100000)
111 		return addr;
112 
113 	for (i = 0; i < ARRAY_SIZE(fixed_map); i++) {
114 		u32 ofs;
115 
116 		if (addr < fixed_map[i].phys)
117 			continue;
118 
119 		ofs = addr - fixed_map[i].phys;
120 		if (ofs > fixed_map[i].size)
121 			continue;
122 
123 		return fixed_map[i].maps + ofs;
124 	}
125 
126 	if ((addr >= 0x18000000 && addr < 0x18c00000) ||
127 	    (addr >= 0x70000000 && addr < 0x78000000) ||
128 	    (addr >= 0x7c000000 && addr < 0x7c400000))
129 		return mt7921_reg_map_l1(dev, addr);
130 
131 	dev_err(dev->mt76.dev, "Access currently unsupported address %08x\n",
132 		addr);
133 
134 	return 0;
135 }
136 
mt7921_rr(struct mt76_dev * mdev,u32 offset)137 static u32 mt7921_rr(struct mt76_dev *mdev, u32 offset)
138 {
139 	struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
140 	u32 addr = __mt7921_reg_addr(dev, offset);
141 
142 	return dev->bus_ops->rr(mdev, addr);
143 }
144 
mt7921_wr(struct mt76_dev * mdev,u32 offset,u32 val)145 static void mt7921_wr(struct mt76_dev *mdev, u32 offset, u32 val)
146 {
147 	struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
148 	u32 addr = __mt7921_reg_addr(dev, offset);
149 
150 	dev->bus_ops->wr(mdev, addr, val);
151 }
152 
mt7921_rmw(struct mt76_dev * mdev,u32 offset,u32 mask,u32 val)153 static u32 mt7921_rmw(struct mt76_dev *mdev, u32 offset, u32 mask, u32 val)
154 {
155 	struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
156 	u32 addr = __mt7921_reg_addr(dev, offset);
157 
158 	return dev->bus_ops->rmw(mdev, addr, mask, val);
159 }
160 
mt7921_dma_init(struct mt792x_dev * dev)161 static int mt7921_dma_init(struct mt792x_dev *dev)
162 {
163 	int ret;
164 
165 	mt76_dma_attach(&dev->mt76);
166 
167 	ret = mt792x_dma_disable(dev, true);
168 	if (ret)
169 		return ret;
170 
171 	/* init tx queue */
172 	ret = mt76_connac_init_tx_queues(dev->phy.mt76, MT7921_TXQ_BAND0,
173 					 MT7921_TX_RING_SIZE,
174 					 MT_TX_RING_BASE, 0);
175 	if (ret)
176 		return ret;
177 
178 	mt76_wr(dev, MT_WFDMA0_TX_RING0_EXT_CTRL, 0x4);
179 
180 	/* command to WM */
181 	ret = mt76_init_mcu_queue(&dev->mt76, MT_MCUQ_WM, MT7921_TXQ_MCU_WM,
182 				  MT7921_TX_MCU_RING_SIZE, MT_TX_RING_BASE);
183 	if (ret)
184 		return ret;
185 
186 	/* firmware download */
187 	ret = mt76_init_mcu_queue(&dev->mt76, MT_MCUQ_FWDL, MT7921_TXQ_FWDL,
188 				  MT7921_TX_FWDL_RING_SIZE, MT_TX_RING_BASE);
189 	if (ret)
190 		return ret;
191 
192 	/* event from WM before firmware download */
193 	ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MCU],
194 			       MT7921_RXQ_MCU_WM,
195 			       MT7921_RX_MCU_RING_SIZE,
196 			       MT_RX_BUF_SIZE, MT_RX_EVENT_RING_BASE);
197 	if (ret)
198 		return ret;
199 
200 	/* Change mcu queue after firmware download */
201 	ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MCU_WA],
202 			       MT7921_RXQ_MCU_WM,
203 			       MT7921_RX_MCU_RING_SIZE,
204 			       MT_RX_BUF_SIZE, MT_WFDMA0(0x540));
205 	if (ret)
206 		return ret;
207 
208 	/* rx data */
209 	ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MAIN],
210 			       MT7921_RXQ_BAND0, MT7921_RX_RING_SIZE,
211 			       MT_RX_BUF_SIZE, MT_RX_DATA_RING_BASE);
212 	if (ret)
213 		return ret;
214 
215 	ret = mt76_init_queues(dev, mt792x_poll_rx);
216 	if (ret < 0)
217 		return ret;
218 
219 	netif_napi_add_tx(&dev->mt76.tx_napi_dev, &dev->mt76.tx_napi,
220 			  mt792x_poll_tx);
221 	napi_enable(&dev->mt76.tx_napi);
222 
223 	return mt792x_dma_enable(dev);
224 }
225 
mt7921_pci_probe(struct pci_dev * pdev,const struct pci_device_id * id)226 static int mt7921_pci_probe(struct pci_dev *pdev,
227 			    const struct pci_device_id *id)
228 {
229 	static const struct mt76_driver_ops drv_ops = {
230 		/* txwi_size = txd size + txp size */
231 		.txwi_size = MT_TXD_SIZE + sizeof(struct mt76_connac_hw_txp),
232 		.drv_flags = MT_DRV_TXWI_NO_FREE | MT_DRV_HW_MGMT_TXQ |
233 			     MT_DRV_AMSDU_OFFLOAD,
234 		.survey_flags = SURVEY_INFO_TIME_TX |
235 				SURVEY_INFO_TIME_RX |
236 				SURVEY_INFO_TIME_BSS_RX,
237 		.token_size = MT7921_TOKEN_SIZE,
238 		.tx_prepare_skb = mt7921e_tx_prepare_skb,
239 		.tx_complete_skb = mt76_connac_tx_complete_skb,
240 		.rx_check = mt7921_rx_check,
241 		.rx_skb = mt7921_queue_rx_skb,
242 		.rx_poll_complete = mt792x_rx_poll_complete,
243 		.sta_add = mt7921_mac_sta_add,
244 		.sta_assoc = mt7921_mac_sta_assoc,
245 		.sta_remove = mt7921_mac_sta_remove,
246 		.update_survey = mt792x_update_channel,
247 	};
248 	static const struct mt792x_hif_ops mt7921_pcie_ops = {
249 		.init_reset = mt7921e_init_reset,
250 		.reset = mt7921e_mac_reset,
251 		.mcu_init = mt7921e_mcu_init,
252 		.drv_own = mt792xe_mcu_drv_pmctrl,
253 		.fw_own = mt792xe_mcu_fw_pmctrl,
254 	};
255 	static const struct mt792x_irq_map irq_map = {
256 		.host_irq_enable = MT_WFDMA0_HOST_INT_ENA,
257 		.tx = {
258 			.all_complete_mask = MT_INT_TX_DONE_ALL,
259 			.mcu_complete_mask = MT_INT_TX_DONE_MCU,
260 		},
261 		.rx = {
262 			.data_complete_mask = MT_INT_RX_DONE_DATA,
263 			.wm_complete_mask = MT_INT_RX_DONE_WM,
264 			.wm2_complete_mask = MT_INT_RX_DONE_WM2,
265 		},
266 	};
267 	struct ieee80211_ops *ops;
268 	struct mt76_bus_ops *bus_ops;
269 	struct mt792x_dev *dev;
270 	struct mt76_dev *mdev;
271 	u8 features;
272 	int ret;
273 	u16 cmd;
274 
275 	ret = pcim_enable_device(pdev);
276 	if (ret)
277 		return ret;
278 
279 	ret = pcim_iomap_regions(pdev, BIT(0), pci_name(pdev));
280 	if (ret)
281 		return ret;
282 
283 	pci_read_config_word(pdev, PCI_COMMAND, &cmd);
284 	if (!(cmd & PCI_COMMAND_MEMORY)) {
285 		cmd |= PCI_COMMAND_MEMORY;
286 		pci_write_config_word(pdev, PCI_COMMAND, cmd);
287 	}
288 	pci_set_master(pdev);
289 
290 	ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_ALL_TYPES);
291 	if (ret < 0)
292 		return ret;
293 
294 	ret = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
295 	if (ret)
296 		goto err_free_pci_vec;
297 
298 	if (mt7921_disable_aspm)
299 		mt76_pci_disable_aspm(pdev);
300 
301 	ops = mt792x_get_mac80211_ops(&pdev->dev, &mt7921_ops,
302 				      (void *)id->driver_data, &features);
303 	if (!ops) {
304 		ret = -ENOMEM;
305 		goto err_free_pci_vec;
306 	}
307 
308 	mdev = mt76_alloc_device(&pdev->dev, sizeof(*dev), ops, &drv_ops);
309 	if (!mdev) {
310 		ret = -ENOMEM;
311 		goto err_free_pci_vec;
312 	}
313 
314 	pci_set_drvdata(pdev, mdev);
315 
316 	dev = container_of(mdev, struct mt792x_dev, mt76);
317 	dev->fw_features = features;
318 	dev->hif_ops = &mt7921_pcie_ops;
319 	dev->irq_map = &irq_map;
320 	mt76_mmio_init(&dev->mt76, pcim_iomap_table(pdev)[0]);
321 	tasklet_init(&mdev->irq_tasklet, mt792x_irq_tasklet, (unsigned long)dev);
322 
323 	dev->phy.dev = dev;
324 	dev->phy.mt76 = &dev->mt76.phy;
325 	dev->mt76.phy.priv = &dev->phy;
326 	dev->bus_ops = dev->mt76.bus;
327 	bus_ops = devm_kmemdup(dev->mt76.dev, dev->bus_ops, sizeof(*bus_ops),
328 			       GFP_KERNEL);
329 	if (!bus_ops) {
330 		ret = -ENOMEM;
331 		goto err_free_dev;
332 	}
333 
334 	bus_ops->rr = mt7921_rr;
335 	bus_ops->wr = mt7921_wr;
336 	bus_ops->rmw = mt7921_rmw;
337 	dev->mt76.bus = bus_ops;
338 
339 	ret = mt792xe_mcu_fw_pmctrl(dev);
340 	if (ret)
341 		goto err_free_dev;
342 
343 	ret = __mt792xe_mcu_drv_pmctrl(dev);
344 	if (ret)
345 		goto err_free_dev;
346 
347 	mdev->rev = (mt7921_l1_rr(dev, MT_HW_CHIPID) << 16) |
348 		    (mt7921_l1_rr(dev, MT_HW_REV) & 0xff);
349 	dev_info(mdev->dev, "ASIC revision: %04x\n", mdev->rev);
350 
351 	ret = mt792x_wfsys_reset(dev);
352 	if (ret)
353 		goto err_free_dev;
354 
355 	mt76_wr(dev, irq_map.host_irq_enable, 0);
356 
357 	mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0xff);
358 
359 	ret = devm_request_irq(mdev->dev, pdev->irq, mt792x_irq_handler,
360 			       IRQF_SHARED, KBUILD_MODNAME, dev);
361 	if (ret)
362 		goto err_free_dev;
363 
364 	ret = mt7921_dma_init(dev);
365 	if (ret)
366 		goto err_free_irq;
367 
368 	ret = mt7921_register_device(dev);
369 	if (ret)
370 		goto err_free_irq;
371 
372 	return 0;
373 
374 err_free_irq:
375 	devm_free_irq(&pdev->dev, pdev->irq, dev);
376 err_free_dev:
377 	mt76_free_device(&dev->mt76);
378 err_free_pci_vec:
379 	pci_free_irq_vectors(pdev);
380 
381 	return ret;
382 }
383 
mt7921_pci_remove(struct pci_dev * pdev)384 static void mt7921_pci_remove(struct pci_dev *pdev)
385 {
386 	struct mt76_dev *mdev = pci_get_drvdata(pdev);
387 	struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
388 
389 	mt7921e_unregister_device(dev);
390 	set_bit(MT76_REMOVED, &mdev->phy.state);
391 	devm_free_irq(&pdev->dev, pdev->irq, dev);
392 	mt76_free_device(&dev->mt76);
393 	pci_free_irq_vectors(pdev);
394 }
395 
mt7921_pci_suspend(struct device * device)396 static int mt7921_pci_suspend(struct device *device)
397 {
398 	struct pci_dev *pdev = to_pci_dev(device);
399 	struct mt76_dev *mdev = pci_get_drvdata(pdev);
400 	struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
401 	struct mt76_connac_pm *pm = &dev->pm;
402 	int i, err;
403 
404 	pm->suspended = true;
405 	flush_work(&dev->reset_work);
406 	cancel_delayed_work_sync(&pm->ps_work);
407 	cancel_work_sync(&pm->wake_work);
408 
409 	err = mt792x_mcu_drv_pmctrl(dev);
410 	if (err < 0)
411 		goto restore_suspend;
412 
413 	err = mt76_connac_mcu_set_hif_suspend(mdev, true);
414 	if (err)
415 		goto restore_suspend;
416 
417 	/* always enable deep sleep during suspend to reduce
418 	 * power consumption
419 	 */
420 	mt76_connac_mcu_set_deep_sleep(&dev->mt76, true);
421 
422 	napi_disable(&mdev->tx_napi);
423 	mt76_worker_disable(&mdev->tx_worker);
424 
425 	mt76_for_each_q_rx(mdev, i) {
426 		napi_disable(&mdev->napi[i]);
427 	}
428 
429 	/* wait until dma is idle  */
430 	mt76_poll(dev, MT_WFDMA0_GLO_CFG,
431 		  MT_WFDMA0_GLO_CFG_TX_DMA_BUSY |
432 		  MT_WFDMA0_GLO_CFG_RX_DMA_BUSY, 0, 1000);
433 
434 	/* put dma disabled */
435 	mt76_clear(dev, MT_WFDMA0_GLO_CFG,
436 		   MT_WFDMA0_GLO_CFG_TX_DMA_EN | MT_WFDMA0_GLO_CFG_RX_DMA_EN);
437 
438 	/* disable interrupt */
439 	mt76_wr(dev, dev->irq_map->host_irq_enable, 0);
440 	mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0x0);
441 	synchronize_irq(pdev->irq);
442 	tasklet_kill(&mdev->irq_tasklet);
443 
444 	err = mt792x_mcu_fw_pmctrl(dev);
445 	if (err)
446 		goto restore_napi;
447 
448 	return 0;
449 
450 restore_napi:
451 	mt76_for_each_q_rx(mdev, i) {
452 		napi_enable(&mdev->napi[i]);
453 	}
454 	napi_enable(&mdev->tx_napi);
455 
456 	if (!pm->ds_enable)
457 		mt76_connac_mcu_set_deep_sleep(&dev->mt76, false);
458 
459 	mt76_connac_mcu_set_hif_suspend(mdev, false);
460 
461 restore_suspend:
462 	pm->suspended = false;
463 
464 	if (err < 0)
465 		mt792x_reset(&dev->mt76);
466 
467 	return err;
468 }
469 
mt7921_pci_resume(struct device * device)470 static int mt7921_pci_resume(struct device *device)
471 {
472 	struct pci_dev *pdev = to_pci_dev(device);
473 	struct mt76_dev *mdev = pci_get_drvdata(pdev);
474 	struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
475 	struct mt76_connac_pm *pm = &dev->pm;
476 	int i, err;
477 
478 	err = mt792x_mcu_drv_pmctrl(dev);
479 	if (err < 0)
480 		goto failed;
481 
482 	mt792x_wpdma_reinit_cond(dev);
483 
484 	/* enable interrupt */
485 	mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0xff);
486 	mt76_connac_irq_enable(&dev->mt76,
487 			       dev->irq_map->tx.all_complete_mask |
488 			       MT_INT_RX_DONE_ALL | MT_INT_MCU_CMD);
489 	mt76_set(dev, MT_MCU2HOST_SW_INT_ENA, MT_MCU_CMD_WAKE_RX_PCIE);
490 
491 	/* put dma enabled */
492 	mt76_set(dev, MT_WFDMA0_GLO_CFG,
493 		 MT_WFDMA0_GLO_CFG_TX_DMA_EN | MT_WFDMA0_GLO_CFG_RX_DMA_EN);
494 
495 	mt76_worker_enable(&mdev->tx_worker);
496 
497 	local_bh_disable();
498 	mt76_for_each_q_rx(mdev, i) {
499 		napi_enable(&mdev->napi[i]);
500 		napi_schedule(&mdev->napi[i]);
501 	}
502 	napi_enable(&mdev->tx_napi);
503 	napi_schedule(&mdev->tx_napi);
504 	local_bh_enable();
505 
506 	/* restore previous ds setting */
507 	if (!pm->ds_enable)
508 		mt76_connac_mcu_set_deep_sleep(&dev->mt76, false);
509 
510 	err = mt76_connac_mcu_set_hif_suspend(mdev, false);
511 failed:
512 	pm->suspended = false;
513 
514 	if (err < 0)
515 		mt792x_reset(&dev->mt76);
516 
517 	return err;
518 }
519 
mt7921_pci_shutdown(struct pci_dev * pdev)520 static void mt7921_pci_shutdown(struct pci_dev *pdev)
521 {
522 	mt7921_pci_remove(pdev);
523 }
524 
525 static DEFINE_SIMPLE_DEV_PM_OPS(mt7921_pm_ops, mt7921_pci_suspend, mt7921_pci_resume);
526 
527 static struct pci_driver mt7921_pci_driver = {
528 	.name		= KBUILD_MODNAME,
529 	.id_table	= mt7921_pci_device_table,
530 	.probe		= mt7921_pci_probe,
531 	.remove		= mt7921_pci_remove,
532 	.shutdown	= mt7921_pci_shutdown,
533 	.driver.pm	= pm_sleep_ptr(&mt7921_pm_ops),
534 };
535 
536 module_pci_driver(mt7921_pci_driver);
537 
538 MODULE_DEVICE_TABLE(pci, mt7921_pci_device_table);
539 MODULE_FIRMWARE(MT7921_FIRMWARE_WM);
540 MODULE_FIRMWARE(MT7921_ROM_PATCH);
541 MODULE_FIRMWARE(MT7922_FIRMWARE_WM);
542 MODULE_FIRMWARE(MT7922_ROM_PATCH);
543 MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>");
544 MODULE_AUTHOR("Lorenzo Bianconi <lorenzo@kernel.org>");
545 MODULE_LICENSE("Dual BSD/GPL");
546