treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282
[linux-2.6-block.git] / drivers / mmc / host / sdhci-pxav3.c
CommitLineData
9c92ab61 1// SPDX-License-Identifier: GPL-2.0-only
a702c8ab
ZG
2/*
3 * Copyright (C) 2010 Marvell International Ltd.
4 * Zhangfei Gao <zhangfei.gao@marvell.com>
5 * Kevin Wang <dwang4@marvell.com>
6 * Mingwei Wang <mwwang@marvell.com>
7 * Philip Rakity <prakity@marvell.com>
8 * Mark Brown <markb@marvell.com>
a702c8ab
ZG
9 */
10#include <linux/err.h>
11#include <linux/init.h>
12#include <linux/platform_device.h>
13#include <linux/clk.h>
14#include <linux/io.h>
a702c8ab
ZG
15#include <linux/mmc/card.h>
16#include <linux/mmc/host.h>
bfed345e 17#include <linux/platform_data/pxa_sdhci.h>
a702c8ab
ZG
18#include <linux/slab.h>
19#include <linux/delay.h>
88b47679 20#include <linux/module.h>
b650352d
CB
21#include <linux/of.h>
22#include <linux/of_device.h>
bb691ae4
KL
23#include <linux/pm.h>
24#include <linux/pm_runtime.h>
5491ce3f 25#include <linux/mbus.h>
b650352d 26
a702c8ab
ZG
27#include "sdhci.h"
28#include "sdhci-pltfm.h"
29
bb691ae4
KL
30#define PXAV3_RPM_DELAY_MS 50
31
a702c8ab
ZG
32#define SD_CLOCK_BURST_SIZE_SETUP 0x10A
33#define SDCLK_SEL 0x100
34#define SDCLK_DELAY_SHIFT 9
35#define SDCLK_DELAY_MASK 0x1f
36
37#define SD_CFG_FIFO_PARAM 0x100
38#define SDCFG_GEN_PAD_CLK_ON (1<<6)
39#define SDCFG_GEN_PAD_CLK_CNT_MASK 0xFF
40#define SDCFG_GEN_PAD_CLK_CNT_SHIFT 24
41
42#define SD_SPI_MODE 0x108
43#define SD_CE_ATA_1 0x10C
44
45#define SD_CE_ATA_2 0x10E
46#define SDCE_MISC_INT (1<<2)
47#define SDCE_MISC_INT_EN (1<<1)
48
cc9571e8 49struct sdhci_pxa {
8afdc9cc 50 struct clk *clk_core;
8c96a7a3 51 struct clk *clk_io;
cc9571e8 52 u8 power_mode;
1140011e 53 void __iomem *sdio3_conf_reg;
cc9571e8
SH
54};
55
5491ce3f
MW
56/*
57 * These registers are relative to the second register region, for the
58 * MBus bridge.
59 */
60#define SDHCI_WINDOW_CTRL(i) (0x80 + ((i) << 3))
61#define SDHCI_WINDOW_BASE(i) (0x84 + ((i) << 3))
62#define SDHCI_MAX_WIN_NUM 8
63
1140011e
MW
64/*
65 * Fields below belong to SDIO3 Configuration Register (third register
66 * region for the Armada 38x flavor)
67 */
68
69#define SDIO3_CONF_CLK_INV BIT(0)
70#define SDIO3_CONF_SD_FB_CLK BIT(2)
71
5491ce3f
MW
72static int mv_conf_mbus_windows(struct platform_device *pdev,
73 const struct mbus_dram_target_info *dram)
74{
75 int i;
76 void __iomem *regs;
77 struct resource *res;
78
79 if (!dram) {
80 dev_err(&pdev->dev, "no mbus dram info\n");
81 return -EINVAL;
82 }
83
84 res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
85 if (!res) {
86 dev_err(&pdev->dev, "cannot get mbus registers\n");
87 return -EINVAL;
88 }
89
90 regs = ioremap(res->start, resource_size(res));
91 if (!regs) {
92 dev_err(&pdev->dev, "cannot map mbus registers\n");
93 return -ENOMEM;
94 }
95
96 for (i = 0; i < SDHCI_MAX_WIN_NUM; i++) {
97 writel(0, regs + SDHCI_WINDOW_CTRL(i));
98 writel(0, regs + SDHCI_WINDOW_BASE(i));
99 }
100
101 for (i = 0; i < dram->num_cs; i++) {
102 const struct mbus_dram_window *cs = dram->cs + i;
103
104 /* Write size, attributes and target id to control register */
105 writel(((cs->size - 1) & 0xffff0000) |
106 (cs->mbus_attr << 8) |
107 (dram->mbus_dram_target_id << 4) | 1,
108 regs + SDHCI_WINDOW_CTRL(i));
109 /* Write base address to base register */
110 writel(cs->base, regs + SDHCI_WINDOW_BASE(i));
111 }
112
113 iounmap(regs);
114
115 return 0;
116}
117
a39128bc
MW
118static int armada_38x_quirks(struct platform_device *pdev,
119 struct sdhci_host *host)
d4b803c5 120{
a39128bc 121 struct device_node *np = pdev->dev.of_node;
1140011e 122 struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
f599da40 123 struct sdhci_pxa *pxa = sdhci_pltfm_priv(pltfm_host);
1140011e 124 struct resource *res;
a39128bc 125
5de76bfc 126 host->quirks &= ~SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN;
d4b803c5 127 host->quirks |= SDHCI_QUIRK_MISSING_CAPS;
0ca33b4a
RK
128
129 host->caps = sdhci_readl(host, SDHCI_CAPABILITIES);
130 host->caps1 = sdhci_readl(host, SDHCI_CAPABILITIES_1);
131
1140011e
MW
132 res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
133 "conf-sdio3");
134 if (res) {
135 pxa->sdio3_conf_reg = devm_ioremap_resource(&pdev->dev, res);
136 if (IS_ERR(pxa->sdio3_conf_reg))
137 return PTR_ERR(pxa->sdio3_conf_reg);
138 } else {
139 /*
140 * According to erratum 'FE-2946959' both SDR50 and DDR50
141 * modes require specific clock adjustments in SDIO3
142 * Configuration register, if the adjustment is not done,
143 * remove them from the capabilities.
144 */
1140011e
MW
145 host->caps1 &= ~(SDHCI_SUPPORT_SDR50 | SDHCI_SUPPORT_DDR50);
146
147 dev_warn(&pdev->dev, "conf-sdio3 register not found: disabling SDR50 and DDR50 modes.\nConsider updating your dtb\n");
148 }
a39128bc
MW
149
150 /*
151 * According to erratum 'ERR-7878951' Armada 38x SDHCI
152 * controller has different capabilities than the ones shown
153 * in its registers
154 */
a39128bc
MW
155 if (of_property_read_bool(np, "no-1-8-v")) {
156 host->caps &= ~SDHCI_CAN_VDD_180;
157 host->mmc->caps &= ~MMC_CAP_1_8V_DDR;
158 } else {
159 host->caps &= ~SDHCI_CAN_VDD_330;
160 }
161 host->caps1 &= ~(SDHCI_SUPPORT_SDR104 | SDHCI_USE_SDR50_TUNING);
162
d4b803c5
GC
163 return 0;
164}
165
03231f9b 166static void pxav3_reset(struct sdhci_host *host, u8 mask)
a702c8ab
ZG
167{
168 struct platform_device *pdev = to_platform_device(mmc_dev(host->mmc));
169 struct sdhci_pxa_platdata *pdata = pdev->dev.platform_data;
170
03231f9b
RK
171 sdhci_reset(host, mask);
172
a702c8ab
ZG
173 if (mask == SDHCI_RESET_ALL) {
174 /*
175 * tune timing of read data/command when crc error happen
176 * no performance impact
177 */
178 if (pdata && 0 != pdata->clk_delay_cycles) {
179 u16 tmp;
180
181 tmp = readw(host->ioaddr + SD_CLOCK_BURST_SIZE_SETUP);
182 tmp |= (pdata->clk_delay_cycles & SDCLK_DELAY_MASK)
183 << SDCLK_DELAY_SHIFT;
184 tmp |= SDCLK_SEL;
185 writew(tmp, host->ioaddr + SD_CLOCK_BURST_SIZE_SETUP);
186 }
187 }
188}
189
190#define MAX_WAIT_COUNT 5
191static void pxav3_gen_init_74_clocks(struct sdhci_host *host, u8 power_mode)
192{
193 struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
f599da40 194 struct sdhci_pxa *pxa = sdhci_pltfm_priv(pltfm_host);
a702c8ab
ZG
195 u16 tmp;
196 int count;
197
198 if (pxa->power_mode == MMC_POWER_UP
199 && power_mode == MMC_POWER_ON) {
200
201 dev_dbg(mmc_dev(host->mmc),
202 "%s: slot->power_mode = %d,"
203 "ios->power_mode = %d\n",
204 __func__,
205 pxa->power_mode,
206 power_mode);
207
208 /* set we want notice of when 74 clocks are sent */
209 tmp = readw(host->ioaddr + SD_CE_ATA_2);
210 tmp |= SDCE_MISC_INT_EN;
211 writew(tmp, host->ioaddr + SD_CE_ATA_2);
212
213 /* start sending the 74 clocks */
214 tmp = readw(host->ioaddr + SD_CFG_FIFO_PARAM);
215 tmp |= SDCFG_GEN_PAD_CLK_ON;
216 writew(tmp, host->ioaddr + SD_CFG_FIFO_PARAM);
217
218 /* slowest speed is about 100KHz or 10usec per clock */
219 udelay(740);
220 count = 0;
221
222 while (count++ < MAX_WAIT_COUNT) {
223 if ((readw(host->ioaddr + SD_CE_ATA_2)
224 & SDCE_MISC_INT) == 0)
225 break;
226 udelay(10);
227 }
228
229 if (count == MAX_WAIT_COUNT)
230 dev_warn(mmc_dev(host->mmc), "74 clock interrupt not cleared\n");
231
232 /* clear the interrupt bit if posted */
233 tmp = readw(host->ioaddr + SD_CE_ATA_2);
234 tmp |= SDCE_MISC_INT;
235 writew(tmp, host->ioaddr + SD_CE_ATA_2);
236 }
237 pxa->power_mode = power_mode;
238}
239
13e64501 240static void pxav3_set_uhs_signaling(struct sdhci_host *host, unsigned int uhs)
a702c8ab 241{
1140011e 242 struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
f599da40 243 struct sdhci_pxa *pxa = sdhci_pltfm_priv(pltfm_host);
a702c8ab
ZG
244 u16 ctrl_2;
245
246 /*
247 * Set V18_EN -- UHS modes do not work without this.
248 * does not change signaling voltage
249 */
250 ctrl_2 = sdhci_readw(host, SDHCI_HOST_CONTROL2);
251
252 /* Select Bus Speed Mode for host */
253 ctrl_2 &= ~SDHCI_CTRL_UHS_MASK;
254 switch (uhs) {
255 case MMC_TIMING_UHS_SDR12:
256 ctrl_2 |= SDHCI_CTRL_UHS_SDR12;
257 break;
258 case MMC_TIMING_UHS_SDR25:
259 ctrl_2 |= SDHCI_CTRL_UHS_SDR25;
260 break;
261 case MMC_TIMING_UHS_SDR50:
262 ctrl_2 |= SDHCI_CTRL_UHS_SDR50 | SDHCI_CTRL_VDD_180;
263 break;
264 case MMC_TIMING_UHS_SDR104:
265 ctrl_2 |= SDHCI_CTRL_UHS_SDR104 | SDHCI_CTRL_VDD_180;
266 break;
668e84b2 267 case MMC_TIMING_MMC_DDR52:
a702c8ab
ZG
268 case MMC_TIMING_UHS_DDR50:
269 ctrl_2 |= SDHCI_CTRL_UHS_DDR50 | SDHCI_CTRL_VDD_180;
270 break;
271 }
272
1140011e
MW
273 /*
274 * Update SDIO3 Configuration register according to erratum
275 * FE-2946959
276 */
277 if (pxa->sdio3_conf_reg) {
278 u8 reg_val = readb(pxa->sdio3_conf_reg);
279
280 if (uhs == MMC_TIMING_UHS_SDR50 ||
281 uhs == MMC_TIMING_UHS_DDR50) {
282 reg_val &= ~SDIO3_CONF_CLK_INV;
283 reg_val |= SDIO3_CONF_SD_FB_CLK;
fa796414
NH
284 } else if (uhs == MMC_TIMING_MMC_HS) {
285 reg_val &= ~SDIO3_CONF_CLK_INV;
286 reg_val &= ~SDIO3_CONF_SD_FB_CLK;
1140011e
MW
287 } else {
288 reg_val |= SDIO3_CONF_CLK_INV;
289 reg_val &= ~SDIO3_CONF_SD_FB_CLK;
290 }
291 writeb(reg_val, pxa->sdio3_conf_reg);
292 }
293
a702c8ab
ZG
294 sdhci_writew(host, ctrl_2, SDHCI_HOST_CONTROL2);
295 dev_dbg(mmc_dev(host->mmc),
296 "%s uhs = %d, ctrl_2 = %04X\n",
297 __func__, uhs, ctrl_2);
a702c8ab
ZG
298}
299
1dceb041
AH
300static void pxav3_set_power(struct sdhci_host *host, unsigned char mode,
301 unsigned short vdd)
302{
303 struct mmc_host *mmc = host->mmc;
304 u8 pwr = host->pwr;
305
606d3131 306 sdhci_set_power_noreg(host, mode, vdd);
1dceb041
AH
307
308 if (host->pwr == pwr)
309 return;
310
311 if (host->pwr == 0)
312 vdd = 0;
313
d1e4f74f 314 if (!IS_ERR(mmc->supply.vmmc))
1dceb041 315 mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, vdd);
1dceb041
AH
316}
317
c915568d 318static const struct sdhci_ops pxav3_sdhci_ops = {
1771059c 319 .set_clock = sdhci_set_clock,
1dceb041 320 .set_power = pxav3_set_power,
a702c8ab 321 .platform_send_init_74_clocks = pxav3_gen_init_74_clocks,
d005d943 322 .get_max_clock = sdhci_pltfm_clk_get_max_clock,
2317f56c 323 .set_bus_width = sdhci_set_bus_width,
03231f9b 324 .reset = pxav3_reset,
b3153765 325 .set_uhs_signaling = pxav3_set_uhs_signaling,
a702c8ab
ZG
326};
327
d35ade8f 328static const struct sdhci_pltfm_data sdhci_pxav3_pdata = {
e065162a 329 .quirks = SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK
73b7afb9
KL
330 | SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC
331 | SDHCI_QUIRK_32BIT_ADMA_SIZE
332 | SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN,
333 .ops = &pxav3_sdhci_ops,
334};
335
b650352d
CB
336#ifdef CONFIG_OF
337static const struct of_device_id sdhci_pxav3_of_match[] = {
338 {
339 .compatible = "mrvl,pxav3-mmc",
340 },
5491ce3f
MW
341 {
342 .compatible = "marvell,armada-380-sdhci",
343 },
b650352d
CB
344 {},
345};
346MODULE_DEVICE_TABLE(of, sdhci_pxav3_of_match);
347
348static struct sdhci_pxa_platdata *pxav3_get_mmc_pdata(struct device *dev)
349{
350 struct sdhci_pxa_platdata *pdata;
351 struct device_node *np = dev->of_node;
b650352d
CB
352 u32 clk_delay_cycles;
353
354 pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
355 if (!pdata)
356 return NULL;
357
14460dba
JZ
358 if (!of_property_read_u32(np, "mrvl,clk-delay-cycles",
359 &clk_delay_cycles))
b650352d
CB
360 pdata->clk_delay_cycles = clk_delay_cycles;
361
362 return pdata;
363}
364#else
365static inline struct sdhci_pxa_platdata *pxav3_get_mmc_pdata(struct device *dev)
366{
367 return NULL;
368}
369#endif
370
c3be1efd 371static int sdhci_pxav3_probe(struct platform_device *pdev)
a702c8ab
ZG
372{
373 struct sdhci_pltfm_host *pltfm_host;
374 struct sdhci_pxa_platdata *pdata = pdev->dev.platform_data;
375 struct device *dev = &pdev->dev;
5491ce3f 376 struct device_node *np = pdev->dev.of_node;
a702c8ab
ZG
377 struct sdhci_host *host = NULL;
378 struct sdhci_pxa *pxa = NULL;
b650352d 379 const struct of_device_id *match;
a702c8ab 380 int ret;
a702c8ab 381
f599da40 382 host = sdhci_pltfm_init(pdev, &sdhci_pxav3_pdata, sizeof(*pxa));
3df5b281 383 if (IS_ERR(host))
a702c8ab 384 return PTR_ERR(host);
5491ce3f 385
a702c8ab 386 pltfm_host = sdhci_priv(host);
f599da40 387 pxa = sdhci_pltfm_priv(pltfm_host);
a702c8ab 388
01ae1070
SH
389 pxa->clk_io = devm_clk_get(dev, "io");
390 if (IS_ERR(pxa->clk_io))
391 pxa->clk_io = devm_clk_get(dev, NULL);
8c96a7a3 392 if (IS_ERR(pxa->clk_io)) {
a702c8ab 393 dev_err(dev, "failed to get io clock\n");
8c96a7a3 394 ret = PTR_ERR(pxa->clk_io);
a702c8ab
ZG
395 goto err_clk_get;
396 }
8c96a7a3
SH
397 pltfm_host->clk = pxa->clk_io;
398 clk_prepare_enable(pxa->clk_io);
a702c8ab 399
8afdc9cc
SH
400 pxa->clk_core = devm_clk_get(dev, "core");
401 if (!IS_ERR(pxa->clk_core))
402 clk_prepare_enable(pxa->clk_core);
403
a39128bc
MW
404 /* enable 1/8V DDR capable */
405 host->mmc->caps |= MMC_CAP_1_8V_DDR;
406
aa8165f9 407 if (of_device_is_compatible(np, "marvell,armada-380-sdhci")) {
a39128bc 408 ret = armada_38x_quirks(pdev, host);
d4b803c5 409 if (ret < 0)
2162d9f4 410 goto err_mbus_win;
aa8165f9
TP
411 ret = mv_conf_mbus_windows(pdev, mv_mbus_dram_info());
412 if (ret < 0)
413 goto err_mbus_win;
414 }
415
b650352d 416 match = of_match_device(of_match_ptr(sdhci_pxav3_of_match), &pdev->dev);
943647f6 417 if (match) {
d2cf6071
SB
418 ret = mmc_of_parse(host->mmc);
419 if (ret)
420 goto err_of_parse;
943647f6 421 sdhci_get_of_property(pdev);
b650352d 422 pdata = pxav3_get_mmc_pdata(dev);
9cd76049 423 pdev->dev.platform_data = pdata;
943647f6 424 } else if (pdata) {
c844a46f
KL
425 /* on-chip device */
426 if (pdata->flags & PXA_FLAG_CARD_PERMANENT)
a702c8ab 427 host->mmc->caps |= MMC_CAP_NONREMOVABLE;
a702c8ab
ZG
428
429 /* If slot design supports 8 bit data, indicate this to MMC. */
430 if (pdata->flags & PXA_FLAG_SD_8_BIT_CAPABLE_SLOT)
431 host->mmc->caps |= MMC_CAP_8_BIT_DATA;
432
433 if (pdata->quirks)
434 host->quirks |= pdata->quirks;
7c52d7bb
KL
435 if (pdata->quirks2)
436 host->quirks2 |= pdata->quirks2;
a702c8ab
ZG
437 if (pdata->host_caps)
438 host->mmc->caps |= pdata->host_caps;
8f63795c
CB
439 if (pdata->host_caps2)
440 host->mmc->caps2 |= pdata->host_caps2;
a702c8ab
ZG
441 if (pdata->pm_caps)
442 host->mmc->pm_caps |= pdata->pm_caps;
443 }
444
62cf983a
JZ
445 pm_runtime_get_noresume(&pdev->dev);
446 pm_runtime_set_active(&pdev->dev);
bb691ae4
KL
447 pm_runtime_set_autosuspend_delay(&pdev->dev, PXAV3_RPM_DELAY_MS);
448 pm_runtime_use_autosuspend(&pdev->dev);
62cf983a 449 pm_runtime_enable(&pdev->dev);
bb691ae4 450 pm_suspend_ignore_children(&pdev->dev, 1);
bb691ae4 451
a702c8ab 452 ret = sdhci_add_host(host);
fb8617e1 453 if (ret)
a702c8ab 454 goto err_add_host;
a702c8ab 455
83dc9fec 456 if (host->mmc->pm_caps & MMC_PM_WAKE_SDIO_IRQ)
740b7a44 457 device_init_wakeup(&pdev->dev, 1);
740b7a44 458
bb691ae4
KL
459 pm_runtime_put_autosuspend(&pdev->dev);
460
a702c8ab
ZG
461 return 0;
462
463err_add_host:
0dcaa249 464 pm_runtime_disable(&pdev->dev);
62cf983a 465 pm_runtime_put_noidle(&pdev->dev);
87d2163d 466err_of_parse:
aa8165f9 467err_mbus_win:
8c96a7a3 468 clk_disable_unprepare(pxa->clk_io);
c25d9e1b 469 clk_disable_unprepare(pxa->clk_core);
a702c8ab
ZG
470err_clk_get:
471 sdhci_pltfm_free(pdev);
a702c8ab
ZG
472 return ret;
473}
474
6e0ee714 475static int sdhci_pxav3_remove(struct platform_device *pdev)
a702c8ab
ZG
476{
477 struct sdhci_host *host = platform_get_drvdata(pdev);
478 struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
f599da40 479 struct sdhci_pxa *pxa = sdhci_pltfm_priv(pltfm_host);
a702c8ab 480
bb691ae4 481 pm_runtime_get_sync(&pdev->dev);
bb691ae4 482 pm_runtime_disable(&pdev->dev);
20f1f2d7
JZ
483 pm_runtime_put_noidle(&pdev->dev);
484
485 sdhci_remove_host(host, 1);
a702c8ab 486
8c96a7a3 487 clk_disable_unprepare(pxa->clk_io);
c25d9e1b 488 clk_disable_unprepare(pxa->clk_core);
8f63795c 489
a702c8ab 490 sdhci_pltfm_free(pdev);
a702c8ab 491
a702c8ab
ZG
492 return 0;
493}
494
bb691ae4
KL
495#ifdef CONFIG_PM_SLEEP
496static int sdhci_pxav3_suspend(struct device *dev)
497{
498 int ret;
499 struct sdhci_host *host = dev_get_drvdata(dev);
500
501 pm_runtime_get_sync(dev);
d38dcad4
AH
502 if (host->tuning_mode != SDHCI_TUNING_MODE_3)
503 mmc_retune_needed(host->mmc);
bb691ae4
KL
504 ret = sdhci_suspend_host(host);
505 pm_runtime_mark_last_busy(dev);
506 pm_runtime_put_autosuspend(dev);
507
508 return ret;
509}
510
511static int sdhci_pxav3_resume(struct device *dev)
512{
513 int ret;
514 struct sdhci_host *host = dev_get_drvdata(dev);
515
516 pm_runtime_get_sync(dev);
517 ret = sdhci_resume_host(host);
518 pm_runtime_mark_last_busy(dev);
519 pm_runtime_put_autosuspend(dev);
520
521 return ret;
522}
523#endif
524
162d6f98 525#ifdef CONFIG_PM
bb691ae4
KL
526static int sdhci_pxav3_runtime_suspend(struct device *dev)
527{
528 struct sdhci_host *host = dev_get_drvdata(dev);
529 struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
f599da40 530 struct sdhci_pxa *pxa = sdhci_pltfm_priv(pltfm_host);
3bb10f60 531 int ret;
bb691ae4 532
3bb10f60
JZ
533 ret = sdhci_runtime_suspend_host(host);
534 if (ret)
535 return ret;
bb691ae4 536
d38dcad4
AH
537 if (host->tuning_mode != SDHCI_TUNING_MODE_3)
538 mmc_retune_needed(host->mmc);
539
8c96a7a3 540 clk_disable_unprepare(pxa->clk_io);
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SH
541 if (!IS_ERR(pxa->clk_core))
542 clk_disable_unprepare(pxa->clk_core);
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543
544 return 0;
545}
546
547static int sdhci_pxav3_runtime_resume(struct device *dev)
548{
549 struct sdhci_host *host = dev_get_drvdata(dev);
550 struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
f599da40 551 struct sdhci_pxa *pxa = sdhci_pltfm_priv(pltfm_host);
bb691ae4 552
8c96a7a3 553 clk_prepare_enable(pxa->clk_io);
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554 if (!IS_ERR(pxa->clk_core))
555 clk_prepare_enable(pxa->clk_core);
bb691ae4 556
3bb10f60 557 return sdhci_runtime_resume_host(host);
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558}
559#endif
560
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561static const struct dev_pm_ops sdhci_pxav3_pmops = {
562 SET_SYSTEM_SLEEP_PM_OPS(sdhci_pxav3_suspend, sdhci_pxav3_resume)
563 SET_RUNTIME_PM_OPS(sdhci_pxav3_runtime_suspend,
564 sdhci_pxav3_runtime_resume, NULL)
565};
566
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567static struct platform_driver sdhci_pxav3_driver = {
568 .driver = {
569 .name = "sdhci-pxav3",
59d22309 570 .of_match_table = of_match_ptr(sdhci_pxav3_of_match),
a81ce772 571 .pm = &sdhci_pxav3_pmops,
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572 },
573 .probe = sdhci_pxav3_probe,
0433c143 574 .remove = sdhci_pxav3_remove,
a702c8ab 575};
a702c8ab 576
d1f81a64 577module_platform_driver(sdhci_pxav3_driver);
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578
579MODULE_DESCRIPTION("SDHCI driver for pxav3");
580MODULE_AUTHOR("Marvell International Ltd.");
581MODULE_LICENSE("GPL v2");
582