static int ulpi_viewport_write(struct usb_phy *otg, u32 val, u32 reg) { int ret; void __iomem *view = otg->io_priv; writel(ULPI_VIEW_WAKEUP | ULPI_VIEW_WRITE, view); ret = ulpi_viewport_wait(view, ULPI_VIEW_WAKEUP); if (ret) return ret; writel(ULPI_VIEW_RUN | ULPI_VIEW_WRITE | ULPI_VIEW_DATA_WRITE(val) | ULPI_VIEW_ADDR(reg), view); return ulpi_viewport_wait(view, ULPI_VIEW_RUN); }
static int ulpi_viewport_read(struct otg_transceiver *otg, u32 reg) { int ret; void __iomem *view = otg->io_priv; writel(ULPI_VIEW_WAKEUP | ULPI_VIEW_WRITE, view); ret = ulpi_viewport_wait(view, ULPI_VIEW_WAKEUP); if (ret) return ret; writel(ULPI_VIEW_RUN | ULPI_VIEW_READ | ULPI_VIEW_ADDR(reg), view); ret = ulpi_viewport_wait(view, ULPI_VIEW_RUN); if (ret) return ret; return ULPI_VIEW_DATA_READ(readl(view)); }