Hi,
On Wed, Aug 18, 2010 at 04:55:28PM +0200, Quadros Roger (Nokia-MS/Helsinki) wrote:
> On 08/18/2010 04:01 PM, Krogerus Heikki (EXT-Teleca/Helsinki) wrote:
> > NXP ISP1704 is Battery Charging Specification 1.0 compliant USB
> > transceiver. This adds a power supply driver for ISP1704 and
> > ISP1707 USB transceivers.
<snip>
> > +static inline int isp1704_test_ulpi(struct isp1704_charger *isp)
> > +{
> > + int vendor, product, i;
> > + int ret = -ENODEV;
> > +
> > + /* Test ULPI interface */
> > + ret = otg_io_write(isp->otg, ULPI_SCRATCH, 0xaa);
> > + if (ret< 0)
> > + return ret;
> > + ret = otg_io_read(isp->otg, ULPI_SCRATCH);
> > + if (ret< 0)
> > + return ret;
> > + if (ret != 0xaa)
> > + return -ENODEV;
> > + /* Verify the product and vendor id matches */
> > + vendor = otg_io_read(isp->otg, ULPI_VENDOR_ID_LOW);
> > + vendor |= otg_io_read(isp->otg, ULPI_VENDOR_ID_HIGH)<< 8;
> > + if (vendor != NXP_VENDOR_ID)
> > + return -ENODEV;
> > + for (i = 0; i< ARRAY_SIZE(isp170x_id); i++) {
> > + product = otg_io_read(isp->otg, ULPI_PRODUCT_ID_LOW);
> > + product |= otg_io_read(isp->otg, ULPI_PRODUCT_ID_HIGH)<< 8;
>
> product id should be read outside the for loop. This way you will save
> unnecessary otg_io_reads. product id won't change anyways.
Good point. Fixing.
> > + if (product == isp170x_id[i]) {
> > + sprintf(isp->model, "isp%x", product);
> > + return product;
> > + }
> > + }
> > +
> > + dev_err(isp->dev, "product id %x not matching known ids", product);
> > +
> > + return -ENODEV;
> > +}
>
> <snip>
>
> > +static struct platform_driver isp1704_charger_driver = {
> > + .driver = {
> > + .name = "isp1704_charger",
> > + },
> > + .probe = isp1704_charger_probe,
> > + .remove = __devexit_p(isp1704_charger_remove),
> > +};
> > +
> > +static struct platform_device *isp1704_device;
> > +
> > +static int __init isp1704_charger_init(void)
> > +{
> > + int ret = 0;
> > +
> > + ret = platform_driver_register(&isp1704_charger_driver);
> > + if (ret)
> > + return ret;
> > +
> > + isp1704_device = platform_device_register_simple("isp1704_charger",
> > + 0, NULL, 0);
>
> This platform_device_register should be done in the rx51 board file. i.e.
> board-rx51-peripherals.c
OK. I'll fix this.
Thanks,
--
heikki
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