[PATCH 04/15] usb: musb: Fix use for of_property_read_bool for disabled multipoint

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Tony Lindgren <tony@xxxxxxxxxxx>

The value for the multipoint dts property is ignored when parsing with
of_property_read_bool, so we currently have multipoint always set as 1
even if value 0 is specified in the dts file.

Let's fix this to read the value too instead of just the property like
the binding documentation says as otherwise MUSB will fail to work
on devices with Mentor configuration that does not support multipoint.

Cc: Brian Hutchinson <b.hutchman@xxxxxxxxx>
Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx>
Signed-off-by: Felipe Balbi <balbi@xxxxxx>
---
 drivers/usb/musb/musb_dsps.c | 7 +++++--
 drivers/usb/musb/omap2430.c  | 7 +++++--
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index 53bd0e71d19f..5872accb0fd3 100644
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -687,7 +687,7 @@ static int dsps_create_musb_pdev(struct dsps_glue *glue,
 	struct musb_hdrc_config	*config;
 	struct platform_device *musb;
 	struct device_node *dn = parent->dev.of_node;
-	int ret;
+	int ret, val;
 
 	memset(resources, 0, sizeof(resources));
 	res = platform_get_resource_byname(parent, IORESOURCE_MEM, "mc");
@@ -739,7 +739,10 @@ static int dsps_create_musb_pdev(struct dsps_glue *glue,
 	pdata.mode = get_musb_port_mode(dev);
 	/* DT keeps this entry in mA, musb expects it as per USB spec */
 	pdata.power = get_int_prop(dn, "mentor,power") / 2;
-	config->multipoint = of_property_read_bool(dn, "mentor,multipoint");
+
+	ret = of_property_read_u32(dn, "mentor,multipoint", &val);
+	if (!ret && val)
+		config->multipoint = true;
 
 	ret = platform_device_add_data(musb, &pdata, sizeof(pdata));
 	if (ret) {
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 763649eb4987..cc752d8c7773 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -516,7 +516,7 @@ static int omap2430_probe(struct platform_device *pdev)
 	struct omap2430_glue		*glue;
 	struct device_node		*np = pdev->dev.of_node;
 	struct musb_hdrc_config		*config;
-	int				ret = -ENOMEM;
+	int				ret = -ENOMEM, val;
 
 	glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL);
 	if (!glue)
@@ -559,7 +559,10 @@ static int omap2430_probe(struct platform_device *pdev)
 		of_property_read_u32(np, "num-eps", (u32 *)&config->num_eps);
 		of_property_read_u32(np, "ram-bits", (u32 *)&config->ram_bits);
 		of_property_read_u32(np, "power", (u32 *)&pdata->power);
-		config->multipoint = of_property_read_bool(np, "multipoint");
+
+		ret = of_property_read_u32(np, "multipoint", &val);
+		if (!ret && val)
+			config->multipoint = true;
 
 		pdata->board_data	= data;
 		pdata->config		= config;
-- 
2.3.0

--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux Media]     [Linux Input]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Old Linux USB Devel Archive]

  Powered by Linux