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usb: musb: Fix use for of_property_read_bool for disabled multipoint 

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@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Tony Lindgren 2015-02-04 06:28:49 -08:00 committed by Felipe Balbi
parent 3e43a07256
commit 606bf4d5d6
2 changed files with 10 additions and 4 deletions
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7
drivers/usb/musb/musb_dsps.c
View File

@ -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) {

7
drivers/usb/musb/omap2430.c
View File

@ -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;