[PATCH v5 12/16] PCI: dwc: sophgo: 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 v5 12/16] PCI: dwc: sophgo: Use cached PCIe capability offset
Date: Wed, 28 Oct 2026 11:06:48 +0800	[thread overview]
Message-ID: <20261028030652.2917756-13-18255117159@163.com> (raw)
In-Reply-To: <20261028030652.2917756-1-18255117159@163.com>

sophgo_pcie_disable_l0s_l1() runs from the .init callback with the
controller already enabled. Replace the capability search with
dw_pcie_get_pcie_cap() and store the offset in a u8.

Signed-off-by: Hans Zhang <18255117159@163.com>
---
 drivers/pci/controller/dwc/pcie-sophgo.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/controller/dwc/pcie-sophgo.c b/drivers/pci/controller/dwc/pcie-sophgo.c
index 044088898819e..39703d2b7b5f2 100644
--- a/drivers/pci/controller/dwc/pcie-sophgo.c
+++ b/drivers/pci/controller/dwc/pcie-sophgo.c
@@ -164,9 +164,10 @@ static void sophgo_pcie_msi_enable(struct dw_pcie_rp *pp)
 static void sophgo_pcie_disable_l0s_l1(struct dw_pcie_rp *pp)
 {
 	struct dw_pcie *pci = to_dw_pcie_from_pp(pp);
-	u32 offset, val;
+	u8 offset;
+	u32 val;
 
-	offset = dw_pcie_find_capability(pci, PCI_CAP_ID_EXP);
+	offset = dw_pcie_get_pcie_cap(pci);
 
 	dw_pcie_dbi_ro_wr_en(pci);
 
-- 
2.43.0


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