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 "debug.h" 25 #include "sdio.h" 26 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 if (of_property_read_u32(np, "brcm,drive-strength", &val) == 0) 43 sdiodev->pdata->drive_strength = val; 44 45 /* make sure there are interrupts defined in the node */ 46 if (!of_find_property(np, "interrupts", NULL)) 47 return; 48 49 irq = irq_of_parse_and_map(np, 0); 50 if (!irq) { 51 brcmf_err("interrupt could not be mapped\n"); 52 return; 53 } 54 irqf = irqd_get_trigger_type(irq_get_irq_data(irq)); 55 56 sdiodev->pdata->oob_irq_supported = true; 57 sdiodev->pdata->oob_irq_nr = irq; 58 sdiodev->pdata->oob_irq_flags = irqf; 59 } 60