From: Vidya Sagar <vidyas@nvidia.com>
To: Manikanta Maddireddy <mmaddireddy@nvidia.com>,
"bhelgaas@google.com" <bhelgaas@google.com>,
"lpieralisi@kernel.org" <lpieralisi@kernel.org>,
"kwilczynski@kernel.org" <kwilczynski@kernel.org>,
"mani@kernel.org" <mani@kernel.org>,
"robh@kernel.org" <robh@kernel.org>,
"krzk+dt@kernel.org" <krzk+dt@kernel.org>,
"conor+dt@kernel.org" <conor+dt@kernel.org>,
"thierry.reding@gmail.com" <thierry.reding@gmail.com>,
Jon Hunter <jonathanh@nvidia.com>,
"kishon@kernel.org" <kishon@kernel.org>,
"arnd@arndb.de" <arnd@arndb.de>,
"gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>,
"Frank.Li@nxp.com" <Frank.Li@nxp.com>,
"den@valinux.co.jp" <den@valinux.co.jp>,
"hongxing.zhu@nxp.com" <hongxing.zhu@nxp.com>,
"jingoohan1@gmail.com" <jingoohan1@gmail.com>,
"cassel@kernel.org" <cassel@kernel.org>,
"18255117159@163.com" <18255117159@163.com>
Cc: "linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
"linux-tegra@vger.kernel.org" <linux-tegra@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v6 08/13] PCI: tegra194: Apply pinctrl settings for both PCIe RP and EP
Date: Fri, 27 Feb 2026 12:34:00 +0000 [thread overview]
Message-ID: <dabbc4cd-3a2c-44fd-be93-595ff827f005@nvidia.com> (raw)
In-Reply-To: <20260223184151.3083221-9-mmaddireddy@nvidia.com>
On 24/02/26 00:11, Manikanta Maddireddy wrote:
> From: Vidya Sagar <vidyas@nvidia.com>
>
> PERST# and CLKREQ# pinctrl settings should be applied for both root port
> and endpoint mode. Move pinctrl_pm_select_default_state() function call
> from root port specific configuration function to probe().
>
> Fixes: c57247f940e8 ("PCI: tegra: Add support for PCIe endpoint mode in Tegra194")
> Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
> Signed-off-by: Manikanta Maddireddy <mmaddireddy@nvidia.com>
> ---
> Changes V5 -> V6: None
> Changes V4 -> V5: Use dev_err_probe() function
> Changes V1 -> V4: None
>
> drivers/pci/controller/dwc/pcie-tegra194.c | 10 ++++------
> 1 file changed, 4 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/pci/controller/dwc/pcie-tegra194.c b/drivers/pci/controller/dwc/pcie-tegra194.c
> index ad1056d68d6d..61cbb4f230e1 100644
> --- a/drivers/pci/controller/dwc/pcie-tegra194.c
> +++ b/drivers/pci/controller/dwc/pcie-tegra194.c
> @@ -1601,12 +1601,6 @@ static int tegra_pcie_config_rp(struct tegra_pcie_dw *pcie)
> goto fail_pm_get_sync;
> }
>
> - ret = pinctrl_pm_select_default_state(dev);
> - if (ret < 0) {
> - dev_err(dev, "Failed to configure sideband pins: %d\n", ret);
> - goto fail_pm_get_sync;
> - }
> -
> ret = tegra_pcie_init_controller(pcie);
> if (ret < 0) {
> dev_err(dev, "Failed to initialize controller: %d\n", ret);
> @@ -2076,6 +2070,10 @@ static int tegra_pcie_dw_probe(struct platform_device *pdev)
> pp = &pci->pp;
> pp->num_vectors = MAX_MSI_IRQS;
>
> + ret = pinctrl_pm_select_default_state(dev);
> + if (ret < 0)
> + return dev_err_probe(dev, ret, "Failed to configure sideband pins: %d\n", ret);
> +
> ret = tegra_pcie_dw_parse_dt(pcie);
> if (ret < 0) {
> const char *level = KERN_ERR;
Reviewed-by: Vidya Sagar <vidyas@nvidia.com>
next prev parent reply other threads:[~2026-02-27 12:34 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-23 18:41 [PATCH v6 00/13] Fixes to pcie-tegra194 driver Manikanta Maddireddy
2026-02-23 18:41 ` [PATCH v6 01/13] PCI: tegra194: Fix polling delay for L2 state Manikanta Maddireddy
2026-02-27 12:32 ` Vidya Sagar
2026-03-02 23:17 ` Bjorn Helgaas
2026-02-23 18:41 ` [PATCH v6 02/13] PCI: tegra194: Refactor LTSSM state polling on surprise down Manikanta Maddireddy
2026-02-27 12:32 ` Vidya Sagar
2026-02-23 18:41 ` [PATCH v6 03/13] PCI: tegra194: Don't force the device into the D0 state before L2 Manikanta Maddireddy
2026-02-27 12:33 ` Vidya Sagar
2026-02-23 18:41 ` [PATCH v6 04/13] PCI: tegra194: Disable PERST IRQ only in Endpoint mode Manikanta Maddireddy
2026-02-27 12:33 ` Vidya Sagar
2026-02-23 18:41 ` [PATCH v6 05/13] PCI: tegra194: Use devm_gpiod_get_optional() to parse "nvidia,refclk-select" Manikanta Maddireddy
2026-02-27 12:33 ` Vidya Sagar
2026-02-23 18:41 ` [PATCH v6 06/13] PCI: tegra194: Disable direct speed change for EP Manikanta Maddireddy
2026-02-27 12:33 ` Vidya Sagar
2026-02-23 18:41 ` [PATCH v6 07/13] PCI: tegra194: Set LTR message request before PCIe link up Manikanta Maddireddy
2026-02-27 12:33 ` Vidya Sagar
2026-03-02 23:27 ` Bjorn Helgaas
2026-02-23 18:41 ` [PATCH v6 08/13] PCI: tegra194: Apply pinctrl settings for both PCIe RP and EP Manikanta Maddireddy
2026-02-27 12:34 ` Vidya Sagar [this message]
2026-02-23 18:41 ` [PATCH v6 09/13] PCI: tegra194: Allow system suspend when the Endpoint link is not up Manikanta Maddireddy
2026-02-27 12:34 ` Vidya Sagar
2026-03-02 23:30 ` Bjorn Helgaas
2026-02-23 18:41 ` [PATCH v6 10/13] PCI: tegra194: Free up EP resources during remove() Manikanta Maddireddy
2026-02-27 12:34 ` Vidya Sagar
2026-02-23 18:41 ` [PATCH v6 11/13] PCI: tegra194: Use HW version number Manikanta Maddireddy
2026-02-27 12:34 ` Vidya Sagar
2026-02-23 18:41 ` [PATCH v6 12/13] PCI: tegra194: Fix CBB timeout caused by DBI access before core power-on Manikanta Maddireddy
2026-02-27 12:34 ` Vidya Sagar
2026-02-23 18:41 ` [PATCH v6 13/13] PCI: tegra194: Free resources during controller deinitialization Manikanta Maddireddy
2026-02-27 12:34 ` Vidya Sagar
2026-02-27 16:59 ` [PATCH v6 00/13] Fixes to pcie-tegra194 driver Jon Hunter
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