On Mon, Oct 30, 2017 at 07:27:12PM +0530, Manikanta Maddireddy wrote:
> This patch ensures that LTSSM is started (by deasserting pcie_xrst) only
> after all the required root port register programming is completed.
>
> Signed-off-by: Manikanta Maddireddy <mmaddireddy@xxxxxxxxxx>
> ---
> V3:
> * no change in this patch
> V2:
> * no change in this patch
>
> drivers/pci/host/pci-tegra.c | 9 +++++----
> 1 file changed, 5 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c
> index 96e8038c3019..b41c60c7414c 100644
> --- a/drivers/pci/host/pci-tegra.c
> +++ b/drivers/pci/host/pci-tegra.c
> @@ -1024,9 +1024,6 @@ static int tegra_pcie_enable_controller(struct tegra_pcie *pcie)
> }
> }
>
> - /* take the PCIe interface module out of reset */
> - reset_control_deassert(pcie->pcie_xrst);
> -
> /* finally enable PCIe */
> value = afi_readl(pcie, AFI_CONFIGURATION);
> value |= AFI_CONFIGURATION_EN_FPCI;
> @@ -1065,7 +1062,6 @@ static void tegra_pcie_power_off(struct tegra_pcie *pcie)
> dev_err(dev, "failed to power off PHY(s): %d\n", err);
> }
>
> - reset_control_assert(pcie->pcie_xrst);
This does not look like it is part of the reset de-assertion code move.
tegra_pcie_enable_controller() -> tegra_pcie_enable_ports()
in other words, why are you removing it ?
Lorenzo
> reset_control_assert(pcie->afi_rst);
> reset_control_assert(pcie->pex_rst);
>
> @@ -2116,7 +2112,12 @@ static void tegra_pcie_enable_ports(struct tegra_pcie *pcie)
> port->index, port->lanes);
>
> tegra_pcie_port_enable(port);
> + }
>
> + /* take the PCIe interface module out of reset */
> + reset_control_deassert(pcie->pcie_xrst);
> +
> + list_for_each_entry_safe(port, tmp, &pcie->ports, list) {
> if (tegra_pcie_port_check_link(port))
> continue;
>
> --
> 2.1.4
>
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