diff options
Diffstat (limited to 'target/linux/ipq806x/patches-5.4/0071-2-PCI-qcom-Fixed-IPQ806x-PCIE-reset-changes.patch')
| -rw-r--r-- | target/linux/ipq806x/patches-5.4/0071-2-PCI-qcom-Fixed-IPQ806x-PCIE-reset-changes.patch | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/target/linux/ipq806x/patches-5.4/0071-2-PCI-qcom-Fixed-IPQ806x-PCIE-reset-changes.patch b/target/linux/ipq806x/patches-5.4/0071-2-PCI-qcom-Fixed-IPQ806x-PCIE-reset-changes.patch new file mode 100644 index 0000000000..5bd865a42e --- /dev/null +++ b/target/linux/ipq806x/patches-5.4/0071-2-PCI-qcom-Fixed-IPQ806x-PCIE-reset-changes.patch @@ -0,0 +1,62 @@ +From 490d103232287eb51c92c49a4ef8865fd0a9d59e Mon Sep 17 00:00:00 2001 +From: Sham Muthayyan <smuthayy@codeaurora.org> +Date: Tue, 19 Jul 2016 18:58:18 +0530 +Subject: PCI: qcom: Fixed IPQ806x PCIE reset changes + +Change-Id: Ia6590e960b9754b1e8b7a51f318788cd63e9e321 +Signed-off-by: Sham Muthayyan <smuthayy@codeaurora.org> +--- + +--- a/drivers/pci/controller/dwc/pcie-qcom.c ++++ b/drivers/pci/controller/dwc/pcie-qcom.c +@@ -92,6 +92,7 @@ struct qcom_pcie_resources_2_1_0 { + struct reset_control *ahb_reset; + struct reset_control *por_reset; + struct reset_control *phy_reset; ++ struct reset_control *ext_reset; + struct regulator_bulk_data supplies[QCOM_PCIE_2_1_0_MAX_SUPPLY]; + }; + +@@ -261,6 +262,10 @@ static int qcom_pcie_get_resources_2_1_0 + if (IS_ERR(res->por_reset)) + return PTR_ERR(res->por_reset); + ++ res->ext_reset = devm_reset_control_get(dev, "ext"); ++ if (IS_ERR(res->ext_reset)) ++ return PTR_ERR(res->ext_reset); ++ + res->phy_reset = devm_reset_control_get_exclusive(dev, "phy"); + return PTR_ERR_OR_ZERO(res->phy_reset); + } +@@ -274,6 +279,7 @@ static void qcom_pcie_deinit_2_1_0(struc + reset_control_assert(res->ahb_reset); + reset_control_assert(res->por_reset); + reset_control_assert(res->pci_reset); ++ reset_control_assert(res->ext_reset); + clk_disable_unprepare(res->iface_clk); + clk_disable_unprepare(res->core_clk); + clk_disable_unprepare(res->phy_clk); +@@ -290,15 +296,21 @@ static int qcom_pcie_init_2_1_0(struct q + u32 val; + int ret; + ++ ret = reset_control_assert(res->ahb_reset); ++ if (ret) { ++ dev_err(dev, "cannot assert ahb reset\n"); ++ return ret; ++ } ++ + ret = regulator_bulk_enable(ARRAY_SIZE(res->supplies), res->supplies); + if (ret < 0) { + dev_err(dev, "cannot enable regulators\n"); + return ret; + } + +- ret = reset_control_assert(res->ahb_reset); ++ ret = reset_control_deassert(res->ext_reset); + if (ret) { +- dev_err(dev, "cannot assert ahb reset\n"); ++ dev_err(dev, "cannot assert ext reset\n"); + goto err_assert_ahb; + } + |