Re: [PATCH v1 02/10] usb: xhci: Use only 32-bit accesses in xhci_writeq/xhci_readq

2020-04-27 Thread Nicolas Saenz Julienne
On Fri, 2020-04-24 at 18:50 +0200, Sylwester Nawrocki wrote: > There might be hardware configurations where 64-bit data accesses > to XHCI registers are not supported properly. This patch removes > the readq/writeq so always two 32-bit accesses are used to read/write > 64-bit XHCI registers, simil

Re: [PATCH v1 02/10] usb: xhci: Use only 32-bit accesses in xhci_writeq/xhci_readq

2020-04-24 Thread Bin Meng
On Sat, Apr 25, 2020 at 12:51 AM Sylwester Nawrocki wrote: > > There might be hardware configurations where 64-bit data accesses > to XHCI registers are not supported properly. This patch removes > the readq/writeq so always two 32-bit accesses are used to read/write > 64-bit XHCI registers, simi

[PATCH v1 02/10] usb: xhci: Use only 32-bit accesses in xhci_writeq/xhci_readq

2020-04-24 Thread Sylwester Nawrocki
There might be hardware configurations where 64-bit data accesses to XHCI registers are not supported properly. This patch removes the readq/writeq so always two 32-bit accesses are used to read/write 64-bit XHCI registers, similarly as it is done in Linux kernel. This patch fixes operation of th