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DHDAXCW-Rockchip-OpenWrt/target/linux/ipq60xx/patches-5.10/011-v5.11-PCI-dwc-Move-MSI-interrupt-setup-into-DWC-common-cod.patch
Boos4721 1e368cb085
kernel: bump 5.10 to 5.10.84 (#8411) 
Signed-off-by: boos4721 <3.1415926535boos@gmail.com>
2021-12-10 23:47:33 +08:00

289 lines
8.7 KiB
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From 264b6fd7baa53bfaef2a6d41067b9568dff7163a Mon Sep 17 00:00:00 2001
From: Rob Herring <robh@kernel.org>
Date: Thu, 5 Nov 2020 15:11:51 -0600
Subject: [PATCH 2/5] PCI: dwc: Move MSI interrupt setup into DWC common code
Platforms using the built-in DWC MSI controller all have a dedicated
interrupt with "msi" name or at index 0, so let's move setting up the
interrupt to the common DWC code.
spear13xx and dra7xx are the 2 oddballs with muxed interrupts, so
we need to prevent configuring the MSI interrupt by setting msi_irq
to negative.
Link: https://lore.kernel.org/r/20201105211159.1814485-9-robh@kernel.org
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Jingoo Han <jingoohan1@gmail.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Richard Zhu <hongxing.zhu@nxp.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: Yue Wang <yue.wang@Amlogic.com>
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Jerome Brunet <jbrunet@baylibre.com>
Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Cc: Xiaowei Song <songxiaowei@hisilicon.com>
Cc: Binghui Wang <wangbinghui@hisilicon.com>
Cc: Stanimir Varbanov <svarbanov@mm-sol.com>
Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Pratyush Anand <pratyush.anand@gmail.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Cc: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: linux-samsung-soc@vger.kernel.org
Cc: linux-amlogic@lists.infradead.org
Cc: linux-arm-kernel@axis.com
Cc: linux-arm-msm@vger.kernel.org
Cc: linux-tegra@vger.kernel.org
---
drivers/pci/controller/dwc/pci-dra7xx.c | 3 +++
drivers/pci/controller/dwc/pci-exynos.c | 6 -----
drivers/pci/controller/dwc/pci-imx6.c | 6 -----
drivers/pci/controller/dwc/pci-meson.c | 6 -----
drivers/pci/controller/dwc/pcie-artpec6.c | 6 -----
.../pci/controller/dwc/pcie-designware-host.c | 11 +++++++++-
.../pci/controller/dwc/pcie-designware-plat.c | 6 -----
drivers/pci/controller/dwc/pcie-histb.c | 6 -----
drivers/pci/controller/dwc/pcie-kirin.c | 22 -------------------
drivers/pci/controller/dwc/pcie-qcom.c | 8 -------
drivers/pci/controller/dwc/pcie-spear13xx.c | 1 +
drivers/pci/controller/dwc/pcie-tegra194.c | 8 -------
drivers/pci/controller/dwc/pcie-uniphier.c | 6 -----
13 files changed, 14 insertions(+), 81 deletions(-)
--- a/drivers/pci/controller/dwc/pci-dra7xx.c
+++ b/drivers/pci/controller/dwc/pci-dra7xx.c
@@ -622,6 +622,9 @@ static int __init dra7xx_add_pcie_port(s
if (pp->irq < 0)
return pp->irq;
+ /* MSI IRQ is muxed */
+ pp->msi_irq = -ENODEV;
+
ret = dra7xx_pcie_init_irq_domain(pp);
if (ret < 0)
return ret;
--- a/drivers/pci/controller/dwc/pci-exynos.c
+++ b/drivers/pci/controller/dwc/pci-exynos.c
@@ -415,12 +415,6 @@ static int __init exynos_add_pcie_port(s
return ret;
}
- if (IS_ENABLED(CONFIG_PCI_MSI)) {
- pp->msi_irq = platform_get_irq(pdev, 0);
- if (pp->msi_irq < 0)
- return pp->msi_irq;
- }
-
pp->ops = &exynos_pcie_host_ops;
ret = dw_pcie_host_init(pp);
--- a/drivers/pci/controller/dwc/pci-imx6.c
+++ b/drivers/pci/controller/dwc/pci-imx6.c
@@ -853,12 +853,6 @@ static int imx6_add_pcie_port(struct imx
struct device *dev = &pdev->dev;
int ret;
- if (IS_ENABLED(CONFIG_PCI_MSI)) {
- pp->msi_irq = platform_get_irq_byname(pdev, "msi");
- if (pp->msi_irq < 0)
- return pp->msi_irq;
- }
-
pp->ops = &imx6_pcie_host_ops;
ret = dw_pcie_host_init(pp);
--- a/drivers/pci/controller/dwc/pci-meson.c
+++ b/drivers/pci/controller/dwc/pci-meson.c
@@ -405,12 +405,6 @@ static int meson_add_pcie_port(struct me
struct device *dev = &pdev->dev;
int ret;
- if (IS_ENABLED(CONFIG_PCI_MSI)) {
- pp->msi_irq = platform_get_irq(pdev, 0);
- if (pp->msi_irq < 0)
- return pp->msi_irq;
- }
-
pp->ops = &meson_pcie_host_ops;
ret = dw_pcie_host_init(pp);
--- a/drivers/pci/controller/dwc/pcie-artpec6.c
+++ b/drivers/pci/controller/dwc/pcie-artpec6.c
@@ -348,12 +348,6 @@ static int artpec6_add_pcie_port(struct
struct device *dev = pci->dev;
int ret;
- if (IS_ENABLED(CONFIG_PCI_MSI)) {
- pp->msi_irq = platform_get_irq_byname(pdev, "msi");
- if (pp->msi_irq < 0)
- return pp->msi_irq;
- }
-
pp->ops = &artpec6_pcie_host_ops;
ret = dw_pcie_host_init(pp);
--- a/drivers/pci/controller/dwc/pcie-designware-host.c
+++ b/drivers/pci/controller/dwc/pcie-designware-host.c
@@ -366,13 +366,22 @@ int dw_pcie_host_init(struct pcie_port *
}
if (!pp->ops->msi_host_init) {
+ if (!pp->msi_irq) {
+ pp->msi_irq = platform_get_irq_byname_optional(pdev, "msi");
+ if (pp->msi_irq < 0) {
+ pp->msi_irq = platform_get_irq(pdev, 0);
+ if (pp->msi_irq < 0)
+ return pp->msi_irq;
+ }
+ }
+
pp->msi_irq_chip = &dw_pci_msi_bottom_irq_chip;
ret = dw_pcie_allocate_domains(pp);
if (ret)
return ret;
- if (pp->msi_irq)
+ if (pp->msi_irq > 0)
irq_set_chained_handler_and_data(pp->msi_irq,
dw_chained_msi_isr,
pp);
--- a/drivers/pci/controller/dwc/pcie-designware-plat.c
+++ b/drivers/pci/controller/dwc/pcie-designware-plat.c
@@ -116,12 +116,6 @@ static int dw_plat_add_pcie_port(struct
if (pp->irq < 0)
return pp->irq;
- if (IS_ENABLED(CONFIG_PCI_MSI)) {
- pp->msi_irq = platform_get_irq(pdev, 0);
- if (pp->msi_irq < 0)
- return pp->msi_irq;
- }
-
pp->num_vectors = MAX_MSI_IRQS;
pp->ops = &dw_plat_pcie_host_ops;
--- a/drivers/pci/controller/dwc/pcie-histb.c
+++ b/drivers/pci/controller/dwc/pcie-histb.c
@@ -400,12 +400,6 @@ static int histb_pcie_probe(struct platf
return PTR_ERR(hipcie->bus_reset);
}
- if (IS_ENABLED(CONFIG_PCI_MSI)) {
- pp->msi_irq = platform_get_irq_byname(pdev, "msi");
- if (pp->msi_irq < 0)
- return pp->msi_irq;
- }
-
hipcie->phy = devm_phy_get(dev, "phy");
if (IS_ERR(hipcie->phy)) {
dev_info(dev, "no pcie-phy found\n");
--- a/drivers/pci/controller/dwc/pcie-kirin.c
+++ b/drivers/pci/controller/dwc/pcie-kirin.c
@@ -444,31 +444,9 @@ static const struct dw_pcie_host_ops kir
.host_init = kirin_pcie_host_init,
};
-static int kirin_pcie_add_msi(struct dw_pcie *pci,
- struct platform_device *pdev)
-{
- int irq;
-
- if (IS_ENABLED(CONFIG_PCI_MSI)) {
- irq = platform_get_irq(pdev, 0);
- if (irq < 0)
- return irq;
-
- pci->pp.msi_irq = irq;
- }
-
- return 0;
-}
-
static int kirin_add_pcie_port(struct dw_pcie *pci,
struct platform_device *pdev)
{
- int ret;
-
- ret = kirin_pcie_add_msi(pci, pdev);
- if (ret)
- return ret;
-
pci->pp.ops = &kirin_pcie_host_ops;
return dw_pcie_host_init(&pci->pp);
--- a/drivers/pci/controller/dwc/pcie-qcom.c
+++ b/drivers/pci/controller/dwc/pcie-qcom.c
@@ -1434,14 +1434,6 @@ static int qcom_pcie_probe(struct platfo
pp->ops = &qcom_pcie_dw_ops;
- if (IS_ENABLED(CONFIG_PCI_MSI)) {
- pp->msi_irq = platform_get_irq_byname(pdev, "msi");
- if (pp->msi_irq < 0) {
- ret = pp->msi_irq;
- goto err_pm_runtime_put;
- }
- }
-
ret = phy_init(pcie->phy);
if (ret) {
pm_runtime_disable(&pdev->dev);
--- a/drivers/pci/controller/dwc/pcie-spear13xx.c
+++ b/drivers/pci/controller/dwc/pcie-spear13xx.c
@@ -183,6 +183,7 @@ static int spear13xx_add_pcie_port(struc
}
pp->ops = &spear13xx_pcie_host_ops;
+ pp->msi_irq = -ENODEV;
ret = dw_pcie_host_init(pp);
if (ret) {
--- a/drivers/pci/controller/dwc/pcie-tegra194.c
+++ b/drivers/pci/controller/dwc/pcie-tegra194.c
@@ -1554,14 +1554,6 @@ static int tegra_pcie_config_rp(struct t
char *name;
int ret;
- if (IS_ENABLED(CONFIG_PCI_MSI)) {
- pp->msi_irq = of_irq_get_byname(dev->of_node, "msi");
- if (!pp->msi_irq) {
- dev_err(dev, "Failed to get MSI interrupt\n");
- return -ENODEV;
- }
- }
-
pm_runtime_enable(dev);
ret = pm_runtime_get_sync(dev);
--- a/drivers/pci/controller/dwc/pcie-uniphier.c
+++ b/drivers/pci/controller/dwc/pcie-uniphier.c
@@ -335,12 +335,6 @@ static int uniphier_add_pcie_port(struct
pp->ops = &uniphier_pcie_host_ops;
- if (IS_ENABLED(CONFIG_PCI_MSI)) {
- pp->msi_irq = platform_get_irq_byname(pdev, "msi");
- if (pp->msi_irq < 0)
- return pp->msi_irq;
- }
-
ret = dw_pcie_host_init(pp);
if (ret) {
dev_err(dev, "Failed to initialize host (%d)\n", ret);
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