On 11/16/2012 12:53 PM, Alexander Shishkin wrote:
> Michael Grzeschik <m.grzeschik@xxxxxxxxxxxxxx> writes:
>
>> From: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
>>
>> Its necessary to limit a hostonly soc to its single role, since
>> debugging has shown that reading on the "CAP_DCCPARAMS" register inside
>> a host-only port, what ci_hdrc_gadget_init does, can lead to an
>> instable behaviour of the IC.
>
> Probably typos: should be "it's" and "unstable".
>
> [snip]
>
>> --- a/drivers/usb/chipidea/ci13xxx_imx.c
>> +++ b/drivers/usb/chipidea/ci13xxx_imx.c
>> @@ -237,6 +237,8 @@ static int __devinit ci13xxx_imx_probe(struct platform_device *pdev)
>> }
>> }
>>
>> + ci13xxx_get_dr_mode(pdev->dev.of_node, pdata);
>> +
>> plat_ci = ci13xxx_add_device(&pdev->dev,
>> pdev->resource, pdev->num_resources,
>> pdata);
>> diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
>> index b50b77a..3e3e159 100644
>> --- a/drivers/usb/chipidea/core.c
>> +++ b/drivers/usb/chipidea/core.c
>> @@ -63,6 +63,7 @@
>> #include <linux/kernel.h>
>> #include <linux/slab.h>
>> #include <linux/pm_runtime.h>
>> +#include <linux/of_platform.h>
>> #include <linux/usb/ch9.h>
>> #include <linux/usb/gadget.h>
>> #include <linux/usb/otg.h>
>> @@ -521,6 +522,23 @@ void ci13xxx_remove_device(struct platform_device *pdev)
>> }
>> EXPORT_SYMBOL_GPL(ci13xxx_remove_device);
>>
>> +void ci13xxx_get_dr_mode(struct device_node *of_node, struct ci13xxx_platform_data *pdata)
>> +{
>> + const unsigned char *dr_mode;
>> +
>> + dr_mode = of_get_property(of_node, "dr_mode", NULL);
>> + if (!dr_mode)
>> + return;
>> +
>> + if (!strcmp(dr_mode, "host"))
>> + pdata->flags |= CI13XXX_DR_MODE_HOST;
>> + else if (!strcmp(dr_mode, "peripheral"))
>> + pdata->flags |= CI13XXX_DR_MODE_PERIPHERAL;
>> + else if (!strcmp(dr_mode, "otg"))
>> + pdata->flags |= CI13XXX_DR_MODE_HOST | CI13XXX_DR_MODE_PERIPHERAL;
>> +}
>> +EXPORT_SYMBOL_GPL(ci13xxx_get_dr_mode);
>> +
>
> I'd prefer this function to live in ci13xxx_imx, since that's where it's
> used and it doesn't really need anything from core.c anyway. Or maybe it
> would make sense to make it even more generic (for other devitetree
> users), since you're saying that other drivers are using this already.
+1
Move it next to the phy-mode and make it work the same way (i.e. return
an enum).
Marc
--
Pengutronix e.K. | Marc Kleine-Budde |
Industrial Linux Solutions | Phone: +49-231-2826-924 |
Vertretung West/Dortmund | Fax: +49-5121-206917-5555 |
Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de |
Attachment:
signature.asc
Description: OpenPGP digital signature
