On Wed, Oct 06, 2021 at 12:12:38AM +0530, Prasad Malisetty wrote:
> Add pipe_clk_need_muxing flag in match data and configure
> If the platform needs to switch pipe_clk_src.
>
> Signed-off-by: Prasad Malisetty <pmaliset@xxxxxxxxxxxxxx>
> ---
> drivers/pci/controller/dwc/pcie-qcom.c | 70 ++++++++++++++++++++++++++++------
> 1 file changed, 59 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c
> index 8a7a300..1d7a9cb 100644
> --- a/drivers/pci/controller/dwc/pcie-qcom.c
> +++ b/drivers/pci/controller/dwc/pcie-qcom.c
> @@ -189,6 +189,11 @@ struct qcom_pcie_ops {
> int (*config_sid)(struct qcom_pcie *pcie);
> };
>
> +struct qcom_pcie_cfg {
> + const struct qcom_pcie_ops *ops;
> + unsigned int pipe_clk_need_muxing:1;
> +};
Thanks for splitting this up; it's 90% of the way there.
It would be better if this patch added only the definition and use of
qcom_pcie_cfg:
+struct qcom_pcie_cfg {
+ const struct qcom_pcie_ops *ops;
+};
and then the subsequent patch added the clock muxing stuff:
struct qcom_pcie_cfg {
+ unsigned int pipe_clk_need_muxing:1;
struct qcom_pcie {
+ unsigned int pipe_clk_need_muxing:1;
static const struct qcom_pcie_cfg sc7280_cfg = {
+ .pipe_clk_need_muxing = true,
static int qcom_pcie_probe(struct platform_device *pdev)
+ pcie->pipe_clk_need_muxing = pcie_cfg->pipe_clk_need_muxing;
That way everything related to pipe_clk_need_muxing would be in a
single patch.
> struct qcom_pcie {
> struct dw_pcie *pci;
> void __iomem *parf; /* DT parf */
> @@ -197,6 +202,7 @@ struct qcom_pcie {
> struct phy *phy;
> struct gpio_desc *reset;
> const struct qcom_pcie_ops *ops;
> + unsigned int pipe_clk_need_muxing:1;
> };
>
> #define to_qcom_pcie(x) dev_get_drvdata((x)->dev)
> @@ -1456,6 +1462,39 @@ static const struct qcom_pcie_ops ops_1_9_0 = {
> .config_sid = qcom_pcie_config_sid_sm8250,
> };
>
> +static const struct qcom_pcie_cfg apq8084_cfg = {
> + .ops = &ops_1_0_0,
> +};
> +
> +static const struct qcom_pcie_cfg ipq8064_cfg = {
> + .ops = &ops_2_1_0,
> +};
> +
> +static const struct qcom_pcie_cfg msm8996_cfg = {
> + .ops = &ops_2_3_2,
> +};
> +
> +static const struct qcom_pcie_cfg ipq8074_cfg = {
> + .ops = &ops_2_3_3,
> +};
> +
> +static const struct qcom_pcie_cfg ipq4019_cfg = {
> + .ops = &ops_2_4_0,
> +};
> +
> +static const struct qcom_pcie_cfg sdm845_cfg = {
> + .ops = &ops_2_7_0,
> +};
> +
> +static const struct qcom_pcie_cfg sm8250_cfg = {
> + .ops = &ops_1_9_0,
> +};
> +
> +static const struct qcom_pcie_cfg sc7280_cfg = {
> + .ops = &ops_1_9_0,
> + .pipe_clk_need_muxing = true,
> +};
> +
> static const struct dw_pcie_ops dw_pcie_ops = {
> .link_up = qcom_pcie_link_up,
> .start_link = qcom_pcie_start_link,
> @@ -1467,6 +1506,7 @@ static int qcom_pcie_probe(struct platform_device *pdev)
> struct pcie_port *pp;
> struct dw_pcie *pci;
> struct qcom_pcie *pcie;
> + const struct qcom_pcie_cfg *pcie_cfg;
> int ret;
>
> pcie = devm_kzalloc(dev, sizeof(*pcie), GFP_KERNEL);
> @@ -1488,7 +1528,14 @@ static int qcom_pcie_probe(struct platform_device *pdev)
>
> pcie->pci = pci;
>
> - pcie->ops = of_device_get_match_data(dev);
> + pcie_cfg = of_device_get_match_data(dev);
> + if (!pcie_cfg || !pcie_cfg->ops) {
> + dev_err(dev, "Invalid platform data\n");
> + return NULL;
> + }
> +
> + pcie->ops = pcie_cfg->ops;
> + pcie->pipe_clk_need_muxing = pcie_cfg->pipe_clk_need_muxing;
>
> pcie->reset = devm_gpiod_get_optional(dev, "perst", GPIOD_OUT_HIGH);
> if (IS_ERR(pcie->reset)) {
> @@ -1545,16 +1592,17 @@ static int qcom_pcie_probe(struct platform_device *pdev)
> }
>
> static const struct of_device_id qcom_pcie_match[] = {
> - { .compatible = "qcom,pcie-apq8084", .data = &ops_1_0_0 },
> - { .compatible = "qcom,pcie-ipq8064", .data = &ops_2_1_0 },
> - { .compatible = "qcom,pcie-ipq8064-v2", .data = &ops_2_1_0 },
> - { .compatible = "qcom,pcie-apq8064", .data = &ops_2_1_0 },
> - { .compatible = "qcom,pcie-msm8996", .data = &ops_2_3_2 },
> - { .compatible = "qcom,pcie-ipq8074", .data = &ops_2_3_3 },
> - { .compatible = "qcom,pcie-ipq4019", .data = &ops_2_4_0 },
> - { .compatible = "qcom,pcie-qcs404", .data = &ops_2_4_0 },
> - { .compatible = "qcom,pcie-sdm845", .data = &ops_2_7_0 },
> - { .compatible = "qcom,pcie-sm8250", .data = &ops_1_9_0 },
> + { .compatible = "qcom,pcie-apq8084", .data = &apq8084_cfg },
> + { .compatible = "qcom,pcie-ipq8064", .data = &ipq8064_cfg },
> + { .compatible = "qcom,pcie-ipq8064-v2", .data = &ipq8064_cfg },
> + { .compatible = "qcom,pcie-apq8064", .data = &ipq8064_cfg },
> + { .compatible = "qcom,pcie-msm8996", .data = &msm8996_cfg },
> + { .compatible = "qcom,pcie-ipq8074", .data = &ipq8074_cfg },
> + { .compatible = "qcom,pcie-ipq4019", .data = &ipq4019_cfg },
> + { .compatible = "qcom,pcie-qcs404", .data = &ipq4019_cfg },
> + { .compatible = "qcom,pcie-sdm845", .data = &sdm845_cfg },
> + { .compatible = "qcom,pcie-sm8250", .data = &sm8250_cfg },
> + { .compatible = "qcom,pcie-sc7280", .data = &sc7280_cfg },
> { }
> };
>
> --
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> a Linux Foundation Collaborative Project
>
