On Sun, Mar 18, 2018 at 11:52:52AM +0100, Marek Vasut wrote:
> The data link active signal usually takes ~20 uSec to be asserted,
> poll the bit more often to avoid useless delays in this function.
>
> Signed-off-by: Marek Vasut <marek.vasut+renesas@xxxxxxxxx>
> Cc: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
> Cc: Phil Edworthy <phil.edworthy@xxxxxxxxxxx>
> Cc: Simon Horman <horms+renesas@xxxxxxxxxxxx>
> Cc: Wolfram Sang <wsa@xxxxxxxxxxxxx>
> Cc: linux-renesas-soc@xxxxxxxxxxxxxxx
Unless my eyes deceive me this seems to be quite a lot (100x) more often,
but so be it.
Reviewed-by: Simon Horman <horms+renesas@xxxxxxxxxxxx>
> ---
> drivers/pci/host/pcie-rcar.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/pci/host/pcie-rcar.c b/drivers/pci/host/pcie-rcar.c
> index 93d59f15c589..099998f1923a 100644
> --- a/drivers/pci/host/pcie-rcar.c
> +++ b/drivers/pci/host/pcie-rcar.c
> @@ -528,13 +528,13 @@ static void phy_write_reg(struct rcar_pcie *pcie,
>
> static int rcar_pcie_wait_for_dl(struct rcar_pcie *pcie)
> {
> - unsigned int timeout = 10;
> + unsigned int timeout = 10000;
>
> while (timeout--) {
> if ((rcar_pci_read_reg(pcie, PCIETSTR) & DATA_LINK_ACTIVE))
> return 0;
>
> - msleep(5);
> + udelay(5);
> }
>
> return -ETIMEDOUT;
> --
> 2.16.2
>
