There's an implicit truncation in setdma_rx/tx of the dma_buf address to 32bit that triggers the following warning with recent GCC versions:

writel((unsigned int) ep->dma_buf, &reg->out_endp[ep_num].doepdma); ^ drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c: In function 'setdma_rx': drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c:116:9: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]

This change makes the truncation explicit by casting to u32 via uintptr_t.

Signed-off-by: Philipp Tomsich philipp.tomsich@theobroma-systems.com ---

drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c b/drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c index 0d6d2fb..de2c2b7 100644 --- a/drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c +++ b/drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c @@ -113,7 +113,7 @@ static int setdma_rx(struct dwc2_ep *ep, struct dwc2_request *req) invalidate_dcache_range((unsigned long) ep->dma_buf, (unsigned long) ep->dma_buf + ep->len);

- writel((unsigned int) ep->dma_buf, &reg->out_endp[ep_num].doepdma); + writel((u32)(uintptr_t) ep->dma_buf, &reg->out_endp[ep_num].doepdma); writel(DOEPT_SIZ_PKT_CNT(pktcnt) | DOEPT_SIZ_XFER_SIZE(length), &reg->out_endp[ep_num].doeptsiz); writel(DEPCTL_EPENA|DEPCTL_CNAK|ctrl, &reg->out_endp[ep_num].doepctl); @@ -161,7 +161,7 @@ static int setdma_tx(struct dwc2_ep *ep, struct dwc2_request *req) while (readl(&reg->grstctl) & TX_FIFO_FLUSH) ;

- writel((unsigned long) ep->dma_buf, &reg->in_endp[ep_num].diepdma); + writel((u32)(uintptr_t) ep->dma_buf, &reg->in_endp[ep_num].diepdma); writel(DIEPT_SIZ_PKT_CNT(pktcnt) | DIEPT_SIZ_XFER_SIZE(length), &reg->in_endp[ep_num].dieptsiz);