46 lines
1.6 KiB
Diff
46 lines
1.6 KiB
Diff
From: Arend van Spriel <arend@broadcom.com>
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Date: Wed, 20 May 2015 14:09:47 +0200
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Subject: [PATCH] brcmfmac: allow device tree node without 'interrupts'
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property
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As described in the device tree bindings for 'brcm,bcm4329-fmac'
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nodes, the interrupts property is optional. So adding a check
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for the presence of this property before attempting to parse
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and map the interrupt. If not present or parsing fails return
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and fallback to in-band sdio interrupt.
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Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
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Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
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Signed-off-by: Arend van Spriel <arend@broadcom.com>
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Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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---
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--- a/drivers/net/wireless/brcm80211/brcmfmac/of.c
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+++ b/drivers/net/wireless/brcm80211/brcmfmac/of.c
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@@ -39,10 +39,16 @@ void brcmf_of_probe(struct brcmf_sdio_de
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if (!sdiodev->pdata)
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return;
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+ if (of_property_read_u32(np, "brcm,drive-strength", &val) == 0)
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+ sdiodev->pdata->drive_strength = val;
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+
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+ /* make sure there are interrupts defined in the node */
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+ if (!of_find_property(np, "interrupts", NULL))
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+ return;
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+
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irq = irq_of_parse_and_map(np, 0);
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if (!irq) {
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brcmf_err("interrupt could not be mapped\n");
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- devm_kfree(dev, sdiodev->pdata);
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return;
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}
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irqf = irqd_get_trigger_type(irq_get_irq_data(irq));
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@@ -50,7 +56,4 @@ void brcmf_of_probe(struct brcmf_sdio_de
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sdiodev->pdata->oob_irq_supported = true;
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sdiodev->pdata->oob_irq_nr = irq;
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sdiodev->pdata->oob_irq_flags = irqf;
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-
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- if (of_property_read_u32(np, "brcm,drive-strength", &val) == 0)
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- sdiodev->pdata->drive_strength = val;
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}
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