linux-kernel - [PATCH v2 5/8] PCI: qcom: Add support for SA8540P

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Message-Id: <20220714071348.6792-6-johan+linaro@kernel.org>
Date:   Thu, 14 Jul 2022 09:13:45 +0200
From:   Johan Hovold <johan+linaro@...nel.org>
To:     Bjorn Helgaas <bhelgaas@...gle.com>,
        Stanimir Varbanov <svarbanov@...sol.com>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
        linux-arm-msm@...r.kernel.org, linux-pci@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Johan Hovold <johan+linaro@...nel.org>,
        Rob Herring <robh@...nel.org>
Subject: [PATCH v2 5/8] PCI: qcom: Add support for SA8540P

The SA8540P platform has five PCIe controllers: two 4-lane, two 2-lane
and one 1-lane.

Add a new "qcom,pcie-sa8540p" compatible string and reuse the 1.9.0 ops.

Note that like for SC8280XP, the SA8540P controllers need two or three
interconnect clocks to be enabled.

Reviewed-by: Rob Herring <robh@...nel.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Signed-off-by: Johan Hovold <johan+linaro@...nel.org>
---
 drivers/pci/controller/dwc/pcie-qcom.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c
index 7a79bec81bba..699cd8b0f38e 100644
--- a/drivers/pci/controller/dwc/pcie-qcom.c
+++ b/drivers/pci/controller/dwc/pcie-qcom.c
@@ -1634,6 +1634,11 @@ static const struct qcom_pcie_cfg ipq4019_cfg = {
 	.ops = &ops_2_4_0,
 };
 
+static const struct qcom_pcie_cfg sa8540p_cfg = {
+	.ops = &ops_1_9_0,
+	.has_ddrss_sf_tbu_clk = true,
+};
+
 static const struct qcom_pcie_cfg sc8280xp_cfg = {
 	.ops = &ops_1_9_0,
 	.has_ddrss_sf_tbu_clk = true,
@@ -1803,6 +1808,7 @@ static const struct of_device_id qcom_pcie_match[] = {
 	{ .compatible = "qcom,pcie-ipq8074", .data = &ipq8074_cfg },
 	{ .compatible = "qcom,pcie-ipq4019", .data = &ipq4019_cfg },
 	{ .compatible = "qcom,pcie-qcs404", .data = &ipq4019_cfg },
+	{ .compatible = "qcom,pcie-sa8540p", .data = &sa8540p_cfg },
 	{ .compatible = "qcom,pcie-sdm845", .data = &sdm845_cfg },
 	{ .compatible = "qcom,pcie-sm8150", .data = &sm8150_cfg },
 	{ .compatible = "qcom,pcie-sm8250", .data = &sm8250_cfg },
-- 
2.35.1