| Message ID | 20240409190833.3485824-5-mr.nuke.me@gmail.com (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | [v2,1/7] dt-bindings: clock: Add PCIe pipe related clocks for IPQ9574 | expand |
On 4/9/24 21:08, Alexandru Gagniuc wrote: > Add support for the PCIe on IPQ9574. The main difference from ipq6018 > is that the "iface" clock is not necessarry. Add a special case in > qcom_pcie_get_resources_2_9_0() to handle this. > > Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> > Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> > --- > drivers/pci/controller/dwc/pcie-qcom.c | 13 +++++++++---- > 1 file changed, 9 insertions(+), 4 deletions(-) > > diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c > index 14772edcf0d3..10560d6d6336 100644 > --- a/drivers/pci/controller/dwc/pcie-qcom.c > +++ b/drivers/pci/controller/dwc/pcie-qcom.c > @@ -1101,15 +1101,19 @@ static int qcom_pcie_get_resources_2_9_0(struct qcom_pcie *pcie) > struct qcom_pcie_resources_2_9_0 *res = &pcie->res.v2_9_0; > struct dw_pcie *pci = pcie->pci; > struct device *dev = pci->dev; > - int ret; > + int ret, num_clks = ARRAY_SIZE(res->clks) - 1; > > - res->clks[0].id = "iface"; > + res->clks[0].id = "rchng"; > res->clks[1].id = "axi_m"; > res->clks[2].id = "axi_s"; > res->clks[3].id = "axi_bridge"; > - res->clks[4].id = "rchng"; > > - ret = devm_clk_bulk_get(dev, ARRAY_SIZE(res->clks), res->clks); > + if (!of_device_is_compatible(dev->of_node, "qcom,pcie-ipq9574")) { > + res->clks[4].id = "iface"; > + num_clks++; Or use devm_clk_bulk_get_optional and rely on the bindings to sanity-check. Mani, thoughts? Konrad
On Wed, Apr 10, 2024 at 01:50:26PM +0200, Konrad Dybcio wrote: > > > On 4/9/24 21:08, Alexandru Gagniuc wrote: > > Add support for the PCIe on IPQ9574. The main difference from ipq6018 > > is that the "iface" clock is not necessarry. Add a special case in > > qcom_pcie_get_resources_2_9_0() to handle this. > > > > Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> > > Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> > > --- > > drivers/pci/controller/dwc/pcie-qcom.c | 13 +++++++++---- > > 1 file changed, 9 insertions(+), 4 deletions(-) > > > > diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c > > index 14772edcf0d3..10560d6d6336 100644 > > --- a/drivers/pci/controller/dwc/pcie-qcom.c > > +++ b/drivers/pci/controller/dwc/pcie-qcom.c > > @@ -1101,15 +1101,19 @@ static int qcom_pcie_get_resources_2_9_0(struct qcom_pcie *pcie) > > struct qcom_pcie_resources_2_9_0 *res = &pcie->res.v2_9_0; > > struct dw_pcie *pci = pcie->pci; > > struct device *dev = pci->dev; > > - int ret; > > + int ret, num_clks = ARRAY_SIZE(res->clks) - 1; > > - res->clks[0].id = "iface"; > > + res->clks[0].id = "rchng"; > > res->clks[1].id = "axi_m"; > > res->clks[2].id = "axi_s"; > > res->clks[3].id = "axi_bridge"; > > - res->clks[4].id = "rchng"; > > - ret = devm_clk_bulk_get(dev, ARRAY_SIZE(res->clks), res->clks); > > + if (!of_device_is_compatible(dev->of_node, "qcom,pcie-ipq9574")) { > > + res->clks[4].id = "iface"; > > + num_clks++; > > Or use devm_clk_bulk_get_optional and rely on the bindings to sanity-check. > > Mani, thoughts? > I'd prefer to use devm_clk_bulk_get_all() and just rely on DT schema to do the validation. There was a patch hanging in my branch for some time and I sent it now: https://lore.kernel.org/linux-pci/20240417-pci-qcom-clk-bulk-v1-1-52ca19b3d6b2@linaro.org/ - Mani
diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c index 14772edcf0d3..10560d6d6336 100644 --- a/drivers/pci/controller/dwc/pcie-qcom.c +++ b/drivers/pci/controller/dwc/pcie-qcom.c @@ -1101,15 +1101,19 @@ static int qcom_pcie_get_resources_2_9_0(struct qcom_pcie *pcie) struct qcom_pcie_resources_2_9_0 *res = &pcie->res.v2_9_0; struct dw_pcie *pci = pcie->pci; struct device *dev = pci->dev; - int ret; + int ret, num_clks = ARRAY_SIZE(res->clks) - 1; - res->clks[0].id = "iface"; + res->clks[0].id = "rchng"; res->clks[1].id = "axi_m"; res->clks[2].id = "axi_s"; res->clks[3].id = "axi_bridge"; - res->clks[4].id = "rchng"; - ret = devm_clk_bulk_get(dev, ARRAY_SIZE(res->clks), res->clks); + if (!of_device_is_compatible(dev->of_node, "qcom,pcie-ipq9574")) { + res->clks[4].id = "iface"; + num_clks++; + } + + ret = devm_clk_bulk_get(dev, num_clks, res->clks); if (ret < 0) return ret; @@ -1664,6 +1668,7 @@ static const struct of_device_id qcom_pcie_match[] = { { .compatible = "qcom,pcie-ipq8064-v2", .data = &cfg_2_1_0 }, { .compatible = "qcom,pcie-ipq8074", .data = &cfg_2_3_3 }, { .compatible = "qcom,pcie-ipq8074-gen3", .data = &cfg_2_9_0 }, + { .compatible = "qcom,pcie-ipq9574", .data = &cfg_2_9_0 }, { .compatible = "qcom,pcie-msm8996", .data = &cfg_2_3_2 }, { .compatible = "qcom,pcie-qcs404", .data = &cfg_2_4_0 }, { .compatible = "qcom,pcie-sa8540p", .data = &cfg_sc8280xp },
Add support for the PCIe on IPQ9574. The main difference from ipq6018 is that the "iface" clock is not necessarry. Add a special case in qcom_pcie_get_resources_2_9_0() to handle this. Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> --- drivers/pci/controller/dwc/pcie-qcom.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-)