[PATCH v4 16/16] PCI: dwc: ultrarisc: Use cached PCIe capability offset

From: Hans Zhang <18255117159@163.com>
To: bhelgaas@google.com, lpieralisi@kernel.org,
	kwilczynski@kernel.org, mani@kernel.org, jingoohan1@gmail.com
Cc: imx@lists.linux.dev, linuxppc-dev@lists.ozlabs.org,
	linux-amlogic@lists.infradead.org,
	linux-rockchip@lists.infradead.org,
	linux-arm-msm@vger.kernel.org, sophgo@lists.linux.dev,
	linux-riscv@lists.infradead.org, spacemit@lists.linux.dev,
	linux-tegra@vger.kernel.org, linux-pci@vger.kernel.org,
	linux-kernel@vger.kernel.org, Hans Zhang <18255117159@163.com>
Subject: [PATCH v4 16/16] PCI: dwc: ultrarisc: Use cached PCIe capability offset
Date: Tue, 27 Oct 2026 20:28:27 +0800	[thread overview]
Message-ID: <20261027122827.2725643-17-18255117159@163.com> (raw)
In-Reply-To: <20261027122827.2725643-1-18255117159@163.com>

ultrarisc_pcie_host_init() runs from the .init callback with the
controller already enabled. Replace the capability search with
dw_pcie_get_pcie_cap(). Since the lookup is performed lazily at the
point of use, the driver no longer depends on any earlier caching step
and the offset is always valid here.

Signed-off-by: Hans Zhang <18255117159@163.com>
---
 drivers/pci/controller/dwc/pcie-ultrarisc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/controller/dwc/pcie-ultrarisc.c b/drivers/pci/controller/dwc/pcie-ultrarisc.c
index 51e89180490d..85373b479b64 100644
--- a/drivers/pci/controller/dwc/pcie-ultrarisc.c
+++ b/drivers/pci/controller/dwc/pcie-ultrarisc.c
@@ -56,7 +56,7 @@ static int ultrarisc_pcie_host_init(struct dw_pcie_rp *pp)
 	FIELD_MODIFY(PORT_FLT_SF_MASK, &val, PORT_FLT_SF_VAL_64);
 	dw_pcie_writel_dbi(pci, PCIE_TIMER_CTRL_MAX_FUNC_NUM, val);
 
-	cap_exp = dw_pcie_find_capability(pci, PCI_CAP_ID_EXP);
+	cap_exp = dw_pcie_get_pcie_cap(pci);
 	val = dw_pcie_readl_dbi(pci, cap_exp + PCI_EXP_LNKCTL2);
 	FIELD_MODIFY(PCI_EXP_LNKCTL2_TLS, &val, PCI_EXP_LNKCTL2_TLS_16_0GT);
 	dw_pcie_writel_dbi(pci, cap_exp + PCI_EXP_LNKCTL2, val);
-- 
2.43.0


_______________________________________________
linux-amlogic mailing list
linux-amlogic@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-amlogic
