1 /*
2 * Copyright (c) 2014 Broadcom Corporation
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16 #include <linux/init.h>
17 #include <linux/of.h>
18 #include <linux/of_irq.h>
19 #include <linux/mmc/card.h>
20 #include <linux/platform_data/brcmfmac-sdio.h>
21 #include <linux/mmc/sdio_func.h>
22
23 #include <defs.h>
24 #include "dhd_dbg.h"
25 #include "sdio_host.h"
26
brcmf_of_probe(struct brcmf_sdio_dev * sdiodev)27 void brcmf_of_probe(struct brcmf_sdio_dev *sdiodev)
28 {
29 struct device *dev = sdiodev->dev;
30 struct device_node *np = dev->of_node;
31 int irq;
32 u32 irqf;
33 u32 val;
34
35 if (!np || !of_device_is_compatible(np, "brcm,bcm4329-fmac"))
36 return;
37
38 sdiodev->pdata = devm_kzalloc(dev, sizeof(*sdiodev->pdata), GFP_KERNEL);
39 if (!sdiodev->pdata)
40 return;
41
42 irq = irq_of_parse_and_map(np, 0);
43 if (!irq) {
44 brcmf_err("interrupt could not be mapped\n");
45 devm_kfree(dev, sdiodev->pdata);
46 return;
47 }
48 irqf = irqd_get_trigger_type(irq_get_irq_data(irq));
49
50 sdiodev->pdata->oob_irq_supported = true;
51 sdiodev->pdata->oob_irq_nr = irq;
52 sdiodev->pdata->oob_irq_flags = irqf;
53
54 if (of_property_read_u32(np, "brcm,drive-strength", &val) == 0)
55 sdiodev->pdata->drive_strength = val;
56 }
57