1 files changed, 19 insertions, 10 deletions

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c
index fe4f65756105..c1f18e2fe540 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c
@@ -6,6 +6,7 @@
 #include <linux/of.h>
 #include <linux/of_irq.h>
 #include <linux/of_net.h>
+#include <linux/clk.h>
 
 #include <defs.h>
 #include "debug.h"
@@ -65,12 +66,13 @@ static int brcmf_of_get_country_codes(struct device *dev,
 	return 0;
 }
 
-void brcmf_of_probe(struct device *dev, enum brcmf_bus_type bus_type,
-		    struct brcmf_mp_device *settings)
+int brcmf_of_probe(struct device *dev, enum brcmf_bus_type bus_type,
+		   struct brcmf_mp_device *settings)
 {
 	struct brcmfmac_sdio_pd *sdio = &settings->bus.sdio;
 	struct device_node *root, *np = dev->of_node;
 	struct of_phandle_args oirq;
+	struct clk *clk;
 	const char *prop;
 	int irq;
 	int err;
@@ -106,16 +108,21 @@ void brcmf_of_probe(struct device *dev, enum brcmf_bus_type bus_type,
 		board_type = devm_kstrdup(dev, tmp, GFP_KERNEL);
 		if (!board_type) {
 			of_node_put(root);
-			return;
+			return 0;
 		}
 		strreplace(board_type, '/', '-');
 		settings->board_type = board_type;
-
-		of_node_put(root);
 	}
+	of_node_put(root);
+
+	clk = devm_clk_get_optional_enabled_with_rate(dev, "lpo", 32768);
+	if (IS_ERR(clk))
+		return PTR_ERR(clk);
+
+	brcmf_dbg(INFO, "%s LPO clock\n", clk ? "enable" : "no");
 
 	if (!np || !of_device_is_compatible(np, "brcm,bcm4329-fmac"))
-		return;
+		return 0;
 
 	err = brcmf_of_get_country_codes(dev, settings);
 	if (err)
@@ -124,23 +131,25 @@ void brcmf_of_probe(struct device *dev, enum brcmf_bus_type bus_type,
 	of_get_mac_address(np, settings->mac);
 
 	if (bus_type != BRCMF_BUSTYPE_SDIO)
-		return;
+		return 0;
 
 	if (of_property_read_u32(np, "brcm,drive-strength", &val) == 0)
 		sdio->drive_strength = val;
 
 	/* make sure there are interrupts defined in the node */
 	if (of_irq_parse_one(np, 0, &oirq))
-		return;
+		return 0;
 
 	irq = irq_create_of_mapping(&oirq);
 	if (!irq) {
 		brcmf_err("interrupt could not be mapped\n");
-		return;
+		return 0;
 	}
-	irqf = irqd_get_trigger_type(irq_get_irq_data(irq));
+	irqf = irq_get_trigger_type(irq);
 
 	sdio->oob_irq_supported = true;
 	sdio->oob_irq_nr = irq;
 	sdio->oob_irq_flags = irqf;
+
+	return 0;
 }