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PCI: layerscape: Use syscon_regmap_lookup_by_phandle_args

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Use syscon_regmap_lookup_by_phandle_args() which is a wrapper over
syscon_regmap_lookup_by_phandle() combined with getting the syscon
argument.  Except simpler code this annotates within one line that given
phandle has arguments, so grepping for code would be easier.

Link: https://lore.kernel.org/r/20250112-syscon-phandle-args-pci-v1-2-fcb6ebcc0afc@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Acked-by: Roy Zang <Roy.Zang@nxp.com>
This commit is contained in:
Krzysztof Kozlowski 2025-01-12 14:39:03 +01:00 committed by Bjorn Helgaas
parent 40384c840e
commit 149fc35734
1 changed files with 4 additions and 6 deletions
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10
drivers/pci/controller/dwc/pci-layerscape.c
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@ -329,7 +329,6 @@ static int ls_pcie_probe(struct platform_device *pdev)
struct ls_pcie *pcie; struct ls_pcie *pcie;
struct resource *dbi_base; struct resource *dbi_base;
u32 index[2]; u32 index[2];
int ret;
pcie = devm_kzalloc(dev, sizeof(*pcie), GFP_KERNEL); pcie = devm_kzalloc(dev, sizeof(*pcie), GFP_KERNEL);
if (!pcie) if (!pcie)
@ -355,16 +354,15 @@ static int ls_pcie_probe(struct platform_device *pdev)
pcie->pf_lut_base = pci->dbi_base + pcie->drvdata->pf_lut_off; pcie->pf_lut_base = pci->dbi_base + pcie->drvdata->pf_lut_off;
if (pcie->drvdata->scfg_support) { if (pcie->drvdata->scfg_support) {
pcie->scfg = syscon_regmap_lookup_by_phandle(dev->of_node, "fsl,pcie-scfg"); pcie->scfg =
syscon_regmap_lookup_by_phandle_args(dev->of_node,
"fsl,pcie-scfg", 2,
index);
if (IS_ERR(pcie->scfg)) { if (IS_ERR(pcie->scfg)) {
dev_err(dev, "No syscfg phandle specified\n"); dev_err(dev, "No syscfg phandle specified\n");
return PTR_ERR(pcie->scfg); return PTR_ERR(pcie->scfg);
} }
ret = of_property_read_u32_array(dev->of_node, "fsl,pcie-scfg", index, 2);
if (ret)
return ret;
pcie->index = index[1]; pcie->index = index[1];
} }