diff options
Diffstat (limited to 'target/linux/ipq806x/patches-5.4/093-1-v5.8-ipq806x-PCI-qcom-Add-missing-ipq806x-clocks-in-PCIe-driver.patch')
| -rw-r--r-- | target/linux/ipq806x/patches-5.4/093-1-v5.8-ipq806x-PCI-qcom-Add-missing-ipq806x-clocks-in-PCIe-driver.patch | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/target/linux/ipq806x/patches-5.4/093-1-v5.8-ipq806x-PCI-qcom-Add-missing-ipq806x-clocks-in-PCIe-driver.patch b/target/linux/ipq806x/patches-5.4/093-1-v5.8-ipq806x-PCI-qcom-Add-missing-ipq806x-clocks-in-PCIe-driver.patch new file mode 100644 index 0000000000..7eb79cae4d --- /dev/null +++ b/target/linux/ipq806x/patches-5.4/093-1-v5.8-ipq806x-PCI-qcom-Add-missing-ipq806x-clocks-in-PCIe-driver.patch @@ -0,0 +1,103 @@ +From 8b6f0330b5f9a7543356bfa9e76d580f03aa2c1e Mon Sep 17 00:00:00 2001 +From: Ansuel Smith <ansuelsmth@gmail.com> +Date: Mon, 15 Jun 2020 23:05:57 +0200 +Subject: PCI: qcom: Add missing ipq806x clocks in PCIe driver + +Aux and Ref clk are missing in PCIe qcom driver. Add support for this +optional clks for ipq8064/apq8064 SoC. + +Link: https://lore.kernel.org/r/20200615210608.21469-2-ansuelsmth@gmail.com +Fixes: 82a823833f4e ("PCI: qcom: Add Qualcomm PCIe controller driver") +Signed-off-by: Sham Muthayyan <smuthayy@codeaurora.org> +Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com> +Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> +Reviewed-by: Rob Herring <robh@kernel.org> +Acked-by: Stanimir Varbanov <svarbanov@mm-sol.com> +--- + drivers/pci/controller/dwc/pcie-qcom.c | 38 +++++++++++++++++++++++++++++----- + 1 file changed, 33 insertions(+), 5 deletions(-) + +--- a/drivers/pci/controller/dwc/pcie-qcom.c ++++ b/drivers/pci/controller/dwc/pcie-qcom.c +@@ -85,6 +85,8 @@ struct qcom_pcie_resources_2_1_0 { + struct clk *iface_clk; + struct clk *core_clk; + struct clk *phy_clk; ++ struct clk *aux_clk; ++ struct clk *ref_clk; + struct reset_control *pci_reset; + struct reset_control *axi_reset; + struct reset_control *ahb_reset; +@@ -235,6 +237,14 @@ static int qcom_pcie_get_resources_2_1_0 + if (IS_ERR(res->phy_clk)) + return PTR_ERR(res->phy_clk); + ++ res->aux_clk = devm_clk_get_optional(dev, "aux"); ++ if (IS_ERR(res->aux_clk)) ++ return PTR_ERR(res->aux_clk); ++ ++ res->ref_clk = devm_clk_get_optional(dev, "ref"); ++ if (IS_ERR(res->ref_clk)) ++ return PTR_ERR(res->ref_clk); ++ + res->pci_reset = devm_reset_control_get_exclusive(dev, "pci"); + if (IS_ERR(res->pci_reset)) + return PTR_ERR(res->pci_reset); +@@ -267,6 +277,8 @@ static void qcom_pcie_deinit_2_1_0(struc + clk_disable_unprepare(res->iface_clk); + clk_disable_unprepare(res->core_clk); + clk_disable_unprepare(res->phy_clk); ++ clk_disable_unprepare(res->aux_clk); ++ clk_disable_unprepare(res->ref_clk); + regulator_bulk_disable(ARRAY_SIZE(res->supplies), res->supplies); + } + +@@ -296,16 +308,28 @@ static int qcom_pcie_init_2_1_0(struct q + goto err_assert_ahb; + } + ++ ret = clk_prepare_enable(res->core_clk); ++ if (ret) { ++ dev_err(dev, "cannot prepare/enable core clock\n"); ++ goto err_clk_core; ++ } ++ + ret = clk_prepare_enable(res->phy_clk); + if (ret) { + dev_err(dev, "cannot prepare/enable phy clock\n"); + goto err_clk_phy; + } + +- ret = clk_prepare_enable(res->core_clk); ++ ret = clk_prepare_enable(res->aux_clk); + if (ret) { +- dev_err(dev, "cannot prepare/enable core clock\n"); +- goto err_clk_core; ++ dev_err(dev, "cannot prepare/enable aux clock\n"); ++ goto err_clk_aux; ++ } ++ ++ ret = clk_prepare_enable(res->ref_clk); ++ if (ret) { ++ dev_err(dev, "cannot prepare/enable ref clock\n"); ++ goto err_clk_ref; + } + + ret = reset_control_deassert(res->ahb_reset); +@@ -361,10 +385,14 @@ static int qcom_pcie_init_2_1_0(struct q + return 0; + + err_deassert_ahb: +- clk_disable_unprepare(res->core_clk); +-err_clk_core: ++ clk_disable_unprepare(res->ref_clk); ++err_clk_ref: ++ clk_disable_unprepare(res->aux_clk); ++err_clk_aux: + clk_disable_unprepare(res->phy_clk); + err_clk_phy: ++ clk_disable_unprepare(res->core_clk); ++err_clk_core: + clk_disable_unprepare(res->iface_clk); + err_assert_ahb: + regulator_bulk_disable(ARRAY_SIZE(res->supplies), res->supplies); |