On Tue, Oct 03, 2023 at 05:38:44PM +0530, Nitheesh Sekar wrote:
> Added a new compatible 'qcom,pcie-ipq5018' and modified
> get_resources of 'ops 2_9_0' to get the clocks from the
> device-tree.
>
As per Documentation/process/submitting-patches.rst:
Describe your changes in imperative mood, e.g. "make xyzzy do frotz"
instead of "[This patch] makes xyzzy do frotz" or "[I] changed xyzzy
to do frotz", as if you are giving orders to the codebase to change
its behaviour.
Also, please elaborate your change in a detailed manner. For instance, saying
that you modified "get_resources of 'ops 2_9_0' to get the clocks from the
devicetree" is not sufficient since all clocks are being parsed based on the
devicetree info only.
- Mani
> Co-developed-by: Anusha Rao <quic_anusha@xxxxxxxxxxx>
> Signed-off-by: Anusha Rao <quic_anusha@xxxxxxxxxxx>
> Co-developed-by: Devi Priya <quic_devipriy@xxxxxxxxxxx>
> Signed-off-by: Devi Priya <quic_devipriy@xxxxxxxxxxx>
> Signed-off-by: Nitheesh Sekar <quic_nsekar@xxxxxxxxxxx>
> ---
> drivers/pci/controller/dwc/pcie-qcom.c | 22 ++++++++--------------
> 1 file changed, 8 insertions(+), 14 deletions(-)
>
> diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c
> index e2f29404c84e..bb0717190920 100644
> --- a/drivers/pci/controller/dwc/pcie-qcom.c
> +++ b/drivers/pci/controller/dwc/pcie-qcom.c
> @@ -197,10 +197,10 @@ struct qcom_pcie_resources_2_7_0 {
> struct reset_control *rst;
> };
>
> -#define QCOM_PCIE_2_9_0_MAX_CLOCKS 5
> struct qcom_pcie_resources_2_9_0 {
> - struct clk_bulk_data clks[QCOM_PCIE_2_9_0_MAX_CLOCKS];
> + struct clk_bulk_data *clks;
> struct reset_control *rst;
> + int num_clks;
> };
>
> union qcom_pcie_resources {
> @@ -1048,17 +1048,10 @@ 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;
>
> - res->clks[0].id = "iface";
> - 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 (ret < 0)
> - return ret;
> + res->num_clks = devm_clk_bulk_get_all(dev, &res->clks);
> + if (res->num_clks < 0)
> + return res->num_clks;
>
> res->rst = devm_reset_control_array_get_exclusive(dev);
> if (IS_ERR(res->rst))
> @@ -1071,7 +1064,7 @@ static void qcom_pcie_deinit_2_9_0(struct qcom_pcie *pcie)
> {
> struct qcom_pcie_resources_2_9_0 *res = &pcie->res.v2_9_0;
>
> - clk_bulk_disable_unprepare(ARRAY_SIZE(res->clks), res->clks);
> + clk_bulk_disable_unprepare(res->num_clks, res->clks);
> }
>
> static int qcom_pcie_init_2_9_0(struct qcom_pcie *pcie)
> @@ -1100,7 +1093,7 @@ static int qcom_pcie_init_2_9_0(struct qcom_pcie *pcie)
>
> usleep_range(2000, 2500);
>
> - return clk_bulk_prepare_enable(ARRAY_SIZE(res->clks), res->clks);
> + return clk_bulk_prepare_enable(res->num_clks, res->clks);
> }
>
> static int qcom_pcie_post_init_2_9_0(struct qcom_pcie *pcie)
> @@ -1605,6 +1598,7 @@ static const struct of_device_id qcom_pcie_match[] = {
> { .compatible = "qcom,pcie-apq8064", .data = &cfg_2_1_0 },
> { .compatible = "qcom,pcie-apq8084", .data = &cfg_1_0_0 },
> { .compatible = "qcom,pcie-ipq4019", .data = &cfg_2_4_0 },
> + { .compatible = "qcom,pcie-ipq5018", .data = &cfg_2_9_0 },
> { .compatible = "qcom,pcie-ipq6018", .data = &cfg_2_9_0 },
> { .compatible = "qcom,pcie-ipq8064", .data = &cfg_2_1_0 },
> { .compatible = "qcom,pcie-ipq8064-v2", .data = &cfg_2_1_0 },
> --
> 2.17.1
>
--
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