[PATCH 3/3] pci: pcie_dw_rockchip: Use udelay instead of msleep
Kever Yang
kever.yang at rock-chips.com
Fri May 21 15:20:51 CEST 2021
Hi Anand,
It's OK to update the API, but please keep the delay duration.
Thanks,
- Kever
On 2021/4/26 下午9:26, Anand Moon wrote:
> Use udelay instead of msleep fix the below warning.
>
> drivers/pci/pcie_dw_rockchip.c:254:3: warning: implicit
> declaration of function 'msleep' [-Wimplicit-function-declaration]
>
> Cc: Neil Armstrong <narmstrong at baylibre.com>
> Cc: Kever Yang <kever.yang at rock-chips.com>
> Signed-off-by: Anand Moon <linux.amoon at gmail.com>
> ---
> drivers/pci/pcie_dw_rockchip.c | 8 ++++----
> 1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/pci/pcie_dw_rockchip.c b/drivers/pci/pcie_dw_rockchip.c
> index e7f42604ab..6c87ee1ea0 100644
> --- a/drivers/pci/pcie_dw_rockchip.c
> +++ b/drivers/pci/pcie_dw_rockchip.c
> @@ -249,7 +249,7 @@ static int rk_pcie_link_up(struct rk_pcie *priv, u32 cap_speed)
> * some wired devices need much more, such as 600ms.
> * Add a enough delay to cover all cases.
> */
> - msleep(PERST_WAIT_MS);
> + udelay(PERST_WAIT_MS);
> dm_gpio_set_value(&priv->rst_gpio, 1);
> }
>
> @@ -271,12 +271,12 @@ static int rk_pcie_link_up(struct rk_pcie *priv, u32 cap_speed)
> dev_info(priv->dw.dev, "PCIe Linking... LTSSM is 0x%x\n",
> rk_pcie_readl_apb(priv, PCIE_CLIENT_LTSSM_STATUS));
> rk_pcie_debug_dump(priv);
> - msleep(1000);
> + udelay(1000);
> }
>
> dev_err(priv->dw.dev, "PCIe-%d Link Fail\n", dev_seq(priv->dw.dev));
> /* Link maybe in Gen switch recovery but we need to wait more 1s */
> - msleep(1000);
> + udelay(1000);
> return -EIO;
> }
>
> @@ -296,7 +296,7 @@ static int rockchip_pcie_init_port(struct udevice *dev)
> }
> }
>
> - msleep(1000);
> + udelay(1000);
>
> ret = generic_phy_init(&priv->phy);
> if (ret) {
More information about the U-Boot
mailing list