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1// SPDX-License-Identifier: GPL-2.0+
2
3#include <linux/phy.h>
4#include <linux/module.h>
5
6#include "qcom.h"
7
8/* ADC threshold */
9#define QCA808X_PHY_DEBUG_ADC_THRESHOLD 0x2c80
10#define QCA808X_ADC_THRESHOLD_MASK GENMASK(7, 0)
11#define QCA808X_ADC_THRESHOLD_80MV 0
12#define QCA808X_ADC_THRESHOLD_100MV 0xf0
13#define QCA808X_ADC_THRESHOLD_200MV 0x0f
14#define QCA808X_ADC_THRESHOLD_300MV 0xff
15
16/* CLD control */
17#define QCA808X_PHY_MMD3_ADDR_CLD_CTRL7 0x8007
18#define QCA808X_8023AZ_AFE_CTRL_MASK GENMASK(8, 4)
19#define QCA808X_8023AZ_AFE_EN 0x90
20
21/* AZ control */
22#define QCA808X_PHY_MMD3_AZ_TRAINING_CTRL 0x8008
23#define QCA808X_MMD3_AZ_TRAINING_VAL 0x1c32
24
25#define QCA808X_PHY_MMD1_MSE_THRESHOLD_20DB 0x8014
26#define QCA808X_MSE_THRESHOLD_20DB_VALUE 0x529
27
28#define QCA808X_PHY_MMD1_MSE_THRESHOLD_17DB 0x800E
29#define QCA808X_MSE_THRESHOLD_17DB_VALUE 0x341
30
31#define QCA808X_PHY_MMD1_MSE_THRESHOLD_27DB 0x801E
32#define QCA808X_MSE_THRESHOLD_27DB_VALUE 0x419
33
34#define QCA808X_PHY_MMD1_MSE_THRESHOLD_28DB 0x8020
35#define QCA808X_MSE_THRESHOLD_28DB_VALUE 0x341
36
37#define QCA808X_PHY_MMD7_TOP_OPTION1 0x901c
38#define QCA808X_TOP_OPTION1_DATA 0x0
39
40#define QCA808X_PHY_MMD3_DEBUG_1 0xa100
41#define QCA808X_MMD3_DEBUG_1_VALUE 0x9203
42#define QCA808X_PHY_MMD3_DEBUG_2 0xa101
43#define QCA808X_MMD3_DEBUG_2_VALUE 0x48ad
44#define QCA808X_PHY_MMD3_DEBUG_3 0xa103
45#define QCA808X_MMD3_DEBUG_3_VALUE 0x1698
46#define QCA808X_PHY_MMD3_DEBUG_4 0xa105
47#define QCA808X_MMD3_DEBUG_4_VALUE 0x8001
48#define QCA808X_PHY_MMD3_DEBUG_5 0xa106
49#define QCA808X_MMD3_DEBUG_5_VALUE 0x1111
50#define QCA808X_PHY_MMD3_DEBUG_6 0xa011
51#define QCA808X_MMD3_DEBUG_6_VALUE 0x5f85
52
53/* master/slave seed config */
54#define QCA808X_PHY_DEBUG_LOCAL_SEED 9
55#define QCA808X_MASTER_SLAVE_SEED_ENABLE BIT(1)
56#define QCA808X_MASTER_SLAVE_SEED_CFG GENMASK(12, 2)
57#define QCA808X_MASTER_SLAVE_SEED_RANGE 0x32
58
59/* Hibernation yields lower power consumpiton in contrast with normal operation mode.
60 * when the copper cable is unplugged, the PHY enters into hibernation mode in about 10s.
61 */
62#define QCA808X_DBG_AN_TEST 0xb
63#define QCA808X_HIBERNATION_EN BIT(15)
64
65#define QCA808X_MMD7_LED2_CTRL 0x8074
66#define QCA808X_MMD7_LED2_FORCE_CTRL 0x8075
67#define QCA808X_MMD7_LED1_CTRL 0x8076
68#define QCA808X_MMD7_LED1_FORCE_CTRL 0x8077
69#define QCA808X_MMD7_LED0_CTRL 0x8078
70#define QCA808X_MMD7_LED_CTRL(x) (0x8078 - ((x) * 2))
71
72#define QCA808X_MMD7_LED0_FORCE_CTRL 0x8079
73#define QCA808X_MMD7_LED_FORCE_CTRL(x) (0x8079 - ((x) * 2))
74
75#define QCA808X_MMD7_LED_POLARITY_CTRL 0x901a
76/* QSDK sets by default 0x46 to this reg that sets BIT 6 for
77 * LED to active high. It's not clear what BIT 3 and BIT 4 does.
78 */
79#define QCA808X_LED_ACTIVE_HIGH BIT(6)
80
81/* QCA808X 1G chip type */
82#define QCA808X_PHY_MMD7_CHIP_TYPE 0x901d
83#define QCA808X_PHY_CHIP_TYPE_1G BIT(0)
84
85#define QCA8081_PHY_SERDES_MMD1_FIFO_CTRL 0x9072
86#define QCA8081_PHY_FIFO_RSTN BIT(11)
87
88#define QCA8081_PHY_ID 0x004dd101
89
90MODULE_DESCRIPTION("Qualcomm Atheros QCA808X PHY driver");
91MODULE_AUTHOR("Matus Ujhelyi");
92MODULE_LICENSE("GPL");
93
94struct qca808x_priv {
95 int led_polarity_mode;
96};
97
98static int qca808x_phy_fast_retrain_config(struct phy_device *phydev)
99{
100 int ret;
101
102 /* Enable fast retrain */
103 ret = genphy_c45_fast_retrain(phydev, true);
104 if (ret)
105 return ret;
106
107 phy_write_mmd(phydev, MDIO_MMD_AN, QCA808X_PHY_MMD7_TOP_OPTION1,
108 QCA808X_TOP_OPTION1_DATA);
109 phy_write_mmd(phydev, MDIO_MMD_PMAPMD, QCA808X_PHY_MMD1_MSE_THRESHOLD_20DB,
110 QCA808X_MSE_THRESHOLD_20DB_VALUE);
111 phy_write_mmd(phydev, MDIO_MMD_PMAPMD, QCA808X_PHY_MMD1_MSE_THRESHOLD_17DB,
112 QCA808X_MSE_THRESHOLD_17DB_VALUE);
113 phy_write_mmd(phydev, MDIO_MMD_PMAPMD, QCA808X_PHY_MMD1_MSE_THRESHOLD_27DB,
114 QCA808X_MSE_THRESHOLD_27DB_VALUE);
115 phy_write_mmd(phydev, MDIO_MMD_PMAPMD, QCA808X_PHY_MMD1_MSE_THRESHOLD_28DB,
116 QCA808X_MSE_THRESHOLD_28DB_VALUE);
117 phy_write_mmd(phydev, MDIO_MMD_PCS, QCA808X_PHY_MMD3_DEBUG_1,
118 QCA808X_MMD3_DEBUG_1_VALUE);
119 phy_write_mmd(phydev, MDIO_MMD_PCS, QCA808X_PHY_MMD3_DEBUG_4,
120 QCA808X_MMD3_DEBUG_4_VALUE);
121 phy_write_mmd(phydev, MDIO_MMD_PCS, QCA808X_PHY_MMD3_DEBUG_5,
122 QCA808X_MMD3_DEBUG_5_VALUE);
123 phy_write_mmd(phydev, MDIO_MMD_PCS, QCA808X_PHY_MMD3_DEBUG_3,
124 QCA808X_MMD3_DEBUG_3_VALUE);
125 phy_write_mmd(phydev, MDIO_MMD_PCS, QCA808X_PHY_MMD3_DEBUG_6,
126 QCA808X_MMD3_DEBUG_6_VALUE);
127 phy_write_mmd(phydev, MDIO_MMD_PCS, QCA808X_PHY_MMD3_DEBUG_2,
128 QCA808X_MMD3_DEBUG_2_VALUE);
129
130 return 0;
131}
132
133static int qca808x_phy_ms_seed_enable(struct phy_device *phydev, bool enable)
134{
135 u16 seed_value;
136
137 if (!enable)
138 return at803x_debug_reg_mask(phydev, QCA808X_PHY_DEBUG_LOCAL_SEED,
139 QCA808X_MASTER_SLAVE_SEED_ENABLE, 0);
140
141 seed_value = get_random_u32_below(QCA808X_MASTER_SLAVE_SEED_RANGE);
142 return at803x_debug_reg_mask(phydev, QCA808X_PHY_DEBUG_LOCAL_SEED,
143 QCA808X_MASTER_SLAVE_SEED_CFG | QCA808X_MASTER_SLAVE_SEED_ENABLE,
144 FIELD_PREP(QCA808X_MASTER_SLAVE_SEED_CFG, seed_value) |
145 QCA808X_MASTER_SLAVE_SEED_ENABLE);
146}
147
148static bool qca808x_is_prefer_master(struct phy_device *phydev)
149{
150 return (phydev->master_slave_get == MASTER_SLAVE_CFG_MASTER_FORCE) ||
151 (phydev->master_slave_get == MASTER_SLAVE_CFG_MASTER_PREFERRED);
152}
153
154static bool qca808x_has_fast_retrain_or_slave_seed(struct phy_device *phydev)
155{
156 return linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, phydev->supported);
157}
158
159static bool qca808x_is_1g_only(struct phy_device *phydev)
160{
161 int ret;
162
163 ret = phy_read_mmd(phydev, MDIO_MMD_AN, QCA808X_PHY_MMD7_CHIP_TYPE);
164 if (ret < 0)
165 return true;
166
167 return !!(QCA808X_PHY_CHIP_TYPE_1G & ret);
168}
169
170static void qca808x_fill_possible_interfaces(struct phy_device *phydev)
171{
172 unsigned long *possible = phydev->possible_interfaces;
173
174 __set_bit(PHY_INTERFACE_MODE_SGMII, possible);
175
176 if (!qca808x_is_1g_only(phydev))
177 __set_bit(PHY_INTERFACE_MODE_2500BASEX, possible);
178}
179
180static int qca808x_probe(struct phy_device *phydev)
181{
182 struct device *dev = &phydev->mdio.dev;
183 struct qca808x_priv *priv;
184
185 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
186 if (!priv)
187 return -ENOMEM;
188
189 /* Init LED polarity mode to -1 */
190 priv->led_polarity_mode = -1;
191
192 phydev->priv = priv;
193
194 return 0;
195}
196
197static int qca808x_config_init(struct phy_device *phydev)
198{
199 struct qca808x_priv *priv = phydev->priv;
200 int ret;
201
202 /* Default to LED Active High if active-low not in DT */
203 if (priv->led_polarity_mode == -1) {
204 ret = phy_set_bits_mmd(phydev, MDIO_MMD_AN,
205 QCA808X_MMD7_LED_POLARITY_CTRL,
206 QCA808X_LED_ACTIVE_HIGH);
207 if (ret)
208 return ret;
209 }
210
211 /* Active adc&vga on 802.3az for the link 1000M and 100M */
212 ret = phy_modify_mmd(phydev, MDIO_MMD_PCS, QCA808X_PHY_MMD3_ADDR_CLD_CTRL7,
213 QCA808X_8023AZ_AFE_CTRL_MASK, QCA808X_8023AZ_AFE_EN);
214 if (ret)
215 return ret;
216
217 /* Adjust the threshold on 802.3az for the link 1000M */
218 ret = phy_write_mmd(phydev, MDIO_MMD_PCS,
219 QCA808X_PHY_MMD3_AZ_TRAINING_CTRL,
220 QCA808X_MMD3_AZ_TRAINING_VAL);
221 if (ret)
222 return ret;
223
224 if (qca808x_has_fast_retrain_or_slave_seed(phydev)) {
225 /* Config the fast retrain for the link 2500M */
226 ret = qca808x_phy_fast_retrain_config(phydev);
227 if (ret)
228 return ret;
229
230 ret = genphy_read_master_slave(phydev);
231 if (ret < 0)
232 return ret;
233
234 if (!qca808x_is_prefer_master(phydev)) {
235 /* Enable seed and configure lower ramdom seed to make phy
236 * linked as slave mode.
237 */
238 ret = qca808x_phy_ms_seed_enable(phydev, true);
239 if (ret)
240 return ret;
241 }
242 }
243
244 qca808x_fill_possible_interfaces(phydev);
245
246 /* Configure adc threshold as 100mv for the link 10M */
247 return at803x_debug_reg_mask(phydev, QCA808X_PHY_DEBUG_ADC_THRESHOLD,
248 QCA808X_ADC_THRESHOLD_MASK,
249 QCA808X_ADC_THRESHOLD_100MV);
250}
251
252static int qca808x_read_status(struct phy_device *phydev)
253{
254 struct at803x_ss_mask ss_mask = { 0 };
255 int ret;
256
257 ret = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_10GBT_STAT);
258 if (ret < 0)
259 return ret;
260
261 linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, phydev->lp_advertising,
262 ret & MDIO_AN_10GBT_STAT_LP2_5G);
263
264 ret = genphy_read_status(phydev);
265 if (ret)
266 return ret;
267
268 /* qca8081 takes the different bits for speed value from at803x */
269 ss_mask.speed_mask = QCA808X_SS_SPEED_MASK;
270 ss_mask.speed_shift = __bf_shf(QCA808X_SS_SPEED_MASK);
271 ret = at803x_read_specific_status(phydev, ss_mask);
272 if (ret < 0)
273 return ret;
274
275 if (phydev->link) {
276 if (phydev->speed == SPEED_2500)
277 phydev->interface = PHY_INTERFACE_MODE_2500BASEX;
278 else
279 phydev->interface = PHY_INTERFACE_MODE_SGMII;
280 } else {
281 /* generate seed as a lower random value to make PHY linked as SLAVE easily,
282 * except for master/slave configuration fault detected or the master mode
283 * preferred.
284 *
285 * the reason for not putting this code into the function link_change_notify is
286 * the corner case where the link partner is also the qca8081 PHY and the seed
287 * value is configured as the same value, the link can't be up and no link change
288 * occurs.
289 */
290 if (qca808x_has_fast_retrain_or_slave_seed(phydev)) {
291 if (phydev->master_slave_state == MASTER_SLAVE_STATE_ERR ||
292 qca808x_is_prefer_master(phydev)) {
293 qca808x_phy_ms_seed_enable(phydev, false);
294 } else {
295 qca808x_phy_ms_seed_enable(phydev, true);
296 }
297 }
298 }
299
300 return 0;
301}
302
303static int qca808x_soft_reset(struct phy_device *phydev)
304{
305 int ret;
306
307 ret = genphy_soft_reset(phydev);
308 if (ret < 0)
309 return ret;
310
311 if (qca808x_has_fast_retrain_or_slave_seed(phydev))
312 ret = qca808x_phy_ms_seed_enable(phydev, true);
313
314 return ret;
315}
316
317static int qca808x_cable_test_start(struct phy_device *phydev)
318{
319 int ret;
320
321 /* perform CDT with the following configs:
322 * 1. disable hibernation.
323 * 2. force PHY working in MDI mode.
324 * 3. for PHY working in 1000BaseT.
325 * 4. configure the threshold.
326 */
327
328 ret = at803x_debug_reg_mask(phydev, QCA808X_DBG_AN_TEST, QCA808X_HIBERNATION_EN, 0);
329 if (ret < 0)
330 return ret;
331
332 ret = at803x_config_mdix(phydev, ETH_TP_MDI);
333 if (ret < 0)
334 return ret;
335
336 /* Force 1000base-T needs to configure PMA/PMD and MII_BMCR */
337 phydev->duplex = DUPLEX_FULL;
338 phydev->speed = SPEED_1000;
339 ret = genphy_c45_pma_setup_forced(phydev);
340 if (ret < 0)
341 return ret;
342
343 ret = genphy_setup_forced(phydev);
344 if (ret < 0)
345 return ret;
346
347 /* configure the thresholds for open, short, pair ok test */
348 phy_write_mmd(phydev, MDIO_MMD_PCS, 0x8074, 0xc040);
349 phy_write_mmd(phydev, MDIO_MMD_PCS, 0x8076, 0xc040);
350 phy_write_mmd(phydev, MDIO_MMD_PCS, 0x8077, 0xa060);
351 phy_write_mmd(phydev, MDIO_MMD_PCS, 0x8078, 0xc050);
352 phy_write_mmd(phydev, MDIO_MMD_PCS, 0x807a, 0xc060);
353 phy_write_mmd(phydev, MDIO_MMD_PCS, 0x807e, 0xb060);
354
355 return 0;
356}
357
358static int qca808x_get_features(struct phy_device *phydev)
359{
360 int ret;
361
362 ret = genphy_c45_pma_read_abilities(phydev);
363 if (ret)
364 return ret;
365
366 /* The autoneg ability is not existed in bit3 of MMD7.1,
367 * but it is supported by qca808x PHY, so we add it here
368 * manually.
369 */
370 linkmode_set_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, phydev->supported);
371
372 /* As for the qca8081 1G version chip, the 2500baseT ability is also
373 * existed in the bit0 of MMD1.21, we need to remove it manually if
374 * it is the qca8081 1G chip according to the bit0 of MMD7.0x901d.
375 */
376 if (qca808x_is_1g_only(phydev))
377 linkmode_clear_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, phydev->supported);
378
379 return 0;
380}
381
382static int qca808x_config_aneg(struct phy_device *phydev)
383{
384 int phy_ctrl = 0;
385 int ret;
386
387 ret = at803x_prepare_config_aneg(phydev);
388 if (ret)
389 return ret;
390
391 /* The reg MII_BMCR also needs to be configured for force mode, the
392 * genphy_config_aneg is also needed.
393 */
394 if (phydev->autoneg == AUTONEG_DISABLE)
395 genphy_c45_pma_setup_forced(phydev);
396
397 if (linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, phydev->advertising))
398 phy_ctrl = MDIO_AN_10GBT_CTRL_ADV2_5G;
399
400 ret = phy_modify_mmd_changed(phydev, MDIO_MMD_AN, MDIO_AN_10GBT_CTRL,
401 MDIO_AN_10GBT_CTRL_ADV2_5G, phy_ctrl);
402 if (ret < 0)
403 return ret;
404
405 return __genphy_config_aneg(phydev, ret);
406}
407
408static void qca808x_link_change_notify(struct phy_device *phydev)
409{
410 /* Assert interface sgmii fifo on link down, deassert it on link up,
411 * the interface device address is always phy address added by 1.
412 */
413 mdiobus_c45_modify_changed(phydev->mdio.bus, phydev->mdio.addr + 1,
414 MDIO_MMD_PMAPMD, QCA8081_PHY_SERDES_MMD1_FIFO_CTRL,
415 QCA8081_PHY_FIFO_RSTN,
416 phydev->link ? QCA8081_PHY_FIFO_RSTN : 0);
417}
418
419static int qca808x_led_parse_netdev(struct phy_device *phydev, unsigned long rules,
420 u16 *offload_trigger)
421{
422 /* Parsing specific to netdev trigger */
423 if (test_bit(TRIGGER_NETDEV_TX, &rules))
424 *offload_trigger |= QCA808X_LED_TX_BLINK;
425 if (test_bit(TRIGGER_NETDEV_RX, &rules))
426 *offload_trigger |= QCA808X_LED_RX_BLINK;
427 if (test_bit(TRIGGER_NETDEV_LINK_10, &rules))
428 *offload_trigger |= QCA808X_LED_SPEED10_ON;
429 if (test_bit(TRIGGER_NETDEV_LINK_100, &rules))
430 *offload_trigger |= QCA808X_LED_SPEED100_ON;
431 if (test_bit(TRIGGER_NETDEV_LINK_1000, &rules))
432 *offload_trigger |= QCA808X_LED_SPEED1000_ON;
433 if (test_bit(TRIGGER_NETDEV_LINK_2500, &rules))
434 *offload_trigger |= QCA808X_LED_SPEED2500_ON;
435 if (test_bit(TRIGGER_NETDEV_HALF_DUPLEX, &rules))
436 *offload_trigger |= QCA808X_LED_HALF_DUPLEX_ON;
437 if (test_bit(TRIGGER_NETDEV_FULL_DUPLEX, &rules))
438 *offload_trigger |= QCA808X_LED_FULL_DUPLEX_ON;
439
440 if (rules && !*offload_trigger)
441 return -EOPNOTSUPP;
442
443 /* Enable BLINK_CHECK_BYPASS by default to make the LED
444 * blink even with duplex or speed mode not enabled.
445 */
446 *offload_trigger |= QCA808X_LED_BLINK_CHECK_BYPASS;
447
448 return 0;
449}
450
451static int qca808x_led_hw_control_enable(struct phy_device *phydev, u8 index)
452{
453 u16 reg;
454
455 if (index > 2)
456 return -EINVAL;
457
458 reg = QCA808X_MMD7_LED_FORCE_CTRL(index);
459 return qca808x_led_reg_hw_control_enable(phydev, reg);
460}
461
462static int qca808x_led_hw_is_supported(struct phy_device *phydev, u8 index,
463 unsigned long rules)
464{
465 u16 offload_trigger = 0;
466
467 if (index > 2)
468 return -EINVAL;
469
470 return qca808x_led_parse_netdev(phydev, rules, &offload_trigger);
471}
472
473static int qca808x_led_hw_control_set(struct phy_device *phydev, u8 index,
474 unsigned long rules)
475{
476 u16 reg, offload_trigger = 0;
477 int ret;
478
479 if (index > 2)
480 return -EINVAL;
481
482 reg = QCA808X_MMD7_LED_CTRL(index);
483
484 ret = qca808x_led_parse_netdev(phydev, rules, &offload_trigger);
485 if (ret)
486 return ret;
487
488 ret = qca808x_led_hw_control_enable(phydev, index);
489 if (ret)
490 return ret;
491
492 return phy_modify_mmd(phydev, MDIO_MMD_AN, reg,
493 QCA808X_LED_PATTERN_MASK,
494 offload_trigger);
495}
496
497static bool qca808x_led_hw_control_status(struct phy_device *phydev, u8 index)
498{
499 u16 reg;
500
501 if (index > 2)
502 return false;
503
504 reg = QCA808X_MMD7_LED_FORCE_CTRL(index);
505 return qca808x_led_reg_hw_control_status(phydev, reg);
506}
507
508static int qca808x_led_hw_control_get(struct phy_device *phydev, u8 index,
509 unsigned long *rules)
510{
511 u16 reg;
512 int val;
513
514 if (index > 2)
515 return -EINVAL;
516
517 /* Check if we have hw control enabled */
518 if (qca808x_led_hw_control_status(phydev, index))
519 return -EINVAL;
520
521 reg = QCA808X_MMD7_LED_CTRL(index);
522
523 val = phy_read_mmd(phydev, MDIO_MMD_AN, reg);
524 if (val & QCA808X_LED_TX_BLINK)
525 set_bit(TRIGGER_NETDEV_TX, rules);
526 if (val & QCA808X_LED_RX_BLINK)
527 set_bit(TRIGGER_NETDEV_RX, rules);
528 if (val & QCA808X_LED_SPEED10_ON)
529 set_bit(TRIGGER_NETDEV_LINK_10, rules);
530 if (val & QCA808X_LED_SPEED100_ON)
531 set_bit(TRIGGER_NETDEV_LINK_100, rules);
532 if (val & QCA808X_LED_SPEED1000_ON)
533 set_bit(TRIGGER_NETDEV_LINK_1000, rules);
534 if (val & QCA808X_LED_SPEED2500_ON)
535 set_bit(TRIGGER_NETDEV_LINK_2500, rules);
536 if (val & QCA808X_LED_HALF_DUPLEX_ON)
537 set_bit(TRIGGER_NETDEV_HALF_DUPLEX, rules);
538 if (val & QCA808X_LED_FULL_DUPLEX_ON)
539 set_bit(TRIGGER_NETDEV_FULL_DUPLEX, rules);
540
541 return 0;
542}
543
544static int qca808x_led_hw_control_reset(struct phy_device *phydev, u8 index)
545{
546 u16 reg;
547
548 if (index > 2)
549 return -EINVAL;
550
551 reg = QCA808X_MMD7_LED_CTRL(index);
552
553 return phy_clear_bits_mmd(phydev, MDIO_MMD_AN, reg,
554 QCA808X_LED_PATTERN_MASK);
555}
556
557static int qca808x_led_brightness_set(struct phy_device *phydev,
558 u8 index, enum led_brightness value)
559{
560 u16 reg;
561 int ret;
562
563 if (index > 2)
564 return -EINVAL;
565
566 if (!value) {
567 ret = qca808x_led_hw_control_reset(phydev, index);
568 if (ret)
569 return ret;
570 }
571
572 reg = QCA808X_MMD7_LED_FORCE_CTRL(index);
573 return qca808x_led_reg_brightness_set(phydev, reg, value);
574}
575
576static int qca808x_led_blink_set(struct phy_device *phydev, u8 index,
577 unsigned long *delay_on,
578 unsigned long *delay_off)
579{
580 u16 reg;
581
582 if (index > 2)
583 return -EINVAL;
584
585 reg = QCA808X_MMD7_LED_FORCE_CTRL(index);
586 return qca808x_led_reg_blink_set(phydev, reg, delay_on, delay_off);
587}
588
589static int qca808x_led_polarity_set(struct phy_device *phydev, int index,
590 unsigned long modes)
591{
592 struct qca808x_priv *priv = phydev->priv;
593 bool active_low = false;
594 u32 mode;
595
596 for_each_set_bit(mode, &modes, __PHY_LED_MODES_NUM) {
597 switch (mode) {
598 case PHY_LED_ACTIVE_LOW:
599 active_low = true;
600 break;
601 default:
602 return -EINVAL;
603 }
604 }
605
606 /* PHY polarity is global and can't be set per LED.
607 * To detect this, check if last requested polarity mode
608 * match the new one.
609 */
610 if (priv->led_polarity_mode >= 0 &&
611 priv->led_polarity_mode != active_low) {
612 phydev_err(phydev, "PHY polarity is global. Mismatched polarity on different LED\n");
613 return -EINVAL;
614 }
615
616 /* Save the last PHY polarity mode */
617 priv->led_polarity_mode = active_low;
618
619 return phy_modify_mmd(phydev, MDIO_MMD_AN,
620 QCA808X_MMD7_LED_POLARITY_CTRL,
621 QCA808X_LED_ACTIVE_HIGH,
622 active_low ? 0 : QCA808X_LED_ACTIVE_HIGH);
623}
624
625static struct phy_driver qca808x_driver[] = {
626{
627 /* Qualcomm QCA8081 */
628 PHY_ID_MATCH_EXACT(QCA8081_PHY_ID),
629 .name = "Qualcomm QCA8081",
630 .flags = PHY_POLL_CABLE_TEST,
631 .probe = qca808x_probe,
632 .config_intr = at803x_config_intr,
633 .handle_interrupt = at803x_handle_interrupt,
634 .get_tunable = at803x_get_tunable,
635 .set_tunable = at803x_set_tunable,
636 .set_wol = at803x_set_wol,
637 .get_wol = at803x_get_wol,
638 .get_features = qca808x_get_features,
639 .config_aneg = qca808x_config_aneg,
640 .suspend = genphy_suspend,
641 .resume = genphy_resume,
642 .read_status = qca808x_read_status,
643 .config_init = qca808x_config_init,
644 .soft_reset = qca808x_soft_reset,
645 .cable_test_start = qca808x_cable_test_start,
646 .cable_test_get_status = qca808x_cable_test_get_status,
647 .link_change_notify = qca808x_link_change_notify,
648 .led_brightness_set = qca808x_led_brightness_set,
649 .led_blink_set = qca808x_led_blink_set,
650 .led_hw_is_supported = qca808x_led_hw_is_supported,
651 .led_hw_control_set = qca808x_led_hw_control_set,
652 .led_hw_control_get = qca808x_led_hw_control_get,
653 .led_polarity_set = qca808x_led_polarity_set,
654}, };
655
656module_phy_driver(qca808x_driver);
657
658static struct mdio_device_id __maybe_unused qca808x_tbl[] = {
659 { PHY_ID_MATCH_EXACT(QCA8081_PHY_ID) },
660 { }
661};
662
663MODULE_DEVICE_TABLE(mdio, qca808x_tbl);