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From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
To: Andy Gross <agross@kernel.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzk@kernel.org>,
	Jingoo Han <jingoohan1@gmail.com>,
	Gustavo Pimentel <gustavo.pimentel@synopsys.com>,
	Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
	Bjorn Helgaas <bhelgaas@google.com>,
	Stanimir Varbanov <svarbanov@mm-sol.com>,
	Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Cc: Vinod Koul <vkoul@kernel.org>,
	linux-arm-msm@vger.kernel.org, linux-pci@vger.kernel.org,
	devicetree@vger.kernel.org
Subject: [PATCH v6 3/7] PCI: dwc: Add msi_host_deinit callback
Date: Thu,  5 May 2022 12:12:27 +0300	[thread overview]
Message-ID: <20220505091231.1308963-4-dmitry.baryshkov@linaro.org> (raw)
In-Reply-To: <20220505091231.1308963-1-dmitry.baryshkov@linaro.org>

Add msi_host_deinit() callback as a counterpart to msi_host_init(). It
will tear down MSI support in case host has to run host-specific ops.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 drivers/pci/controller/dwc/pcie-designware-host.c | 8 ++++++--
 drivers/pci/controller/dwc/pcie-designware.h      | 1 +
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c
index 43d1d6116007..92dcaeabe2bf 100644
--- a/drivers/pci/controller/dwc/pcie-designware-host.c
+++ b/drivers/pci/controller/dwc/pcie-designware-host.c
@@ -424,7 +424,9 @@ int dw_pcie_host_init(struct pcie_port *pp)
 		return 0;
 
 err_free_msi:
-	if (pp->has_msi_ctrl)
+	if (pp->ops->msi_host_deinit)
+		pp->ops->msi_host_deinit(pp);
+	else if (pp->has_msi_ctrl)
 		dw_pcie_free_msi(pp);
 	return ret;
 }
@@ -434,7 +436,9 @@ void dw_pcie_host_deinit(struct pcie_port *pp)
 {
 	pci_stop_root_bus(pp->bridge->bus);
 	pci_remove_root_bus(pp->bridge->bus);
-	if (pp->has_msi_ctrl)
+	if (pp->ops->msi_host_deinit)
+		pp->ops->msi_host_deinit(pp);
+	else if (pp->has_msi_ctrl)
 		dw_pcie_free_msi(pp);
 }
 EXPORT_SYMBOL_GPL(dw_pcie_host_deinit);
diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h
index 7d6e9b7576be..e1c48b71e0d2 100644
--- a/drivers/pci/controller/dwc/pcie-designware.h
+++ b/drivers/pci/controller/dwc/pcie-designware.h
@@ -175,6 +175,7 @@ enum dw_pcie_device_mode {
 struct dw_pcie_host_ops {
 	int (*host_init)(struct pcie_port *pp);
 	int (*msi_host_init)(struct pcie_port *pp);
+	void (*msi_host_deinit)(struct pcie_port *pp);
 };
 
 struct pcie_port {
-- 
2.35.1


  parent reply	other threads:[~2022-05-05  9:12 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-05  9:12 [PATCH v6 0/7] PCI: qcom: Fix higher MSI vectors handling Dmitry Baryshkov
2022-05-05  9:12 ` [PATCH v6 1/7] PCI: qcom: Revert "PCI: qcom: Add support for handling MSIs from 8 endpoints" Dmitry Baryshkov
2022-05-05  9:12 ` [PATCH v6 2/7] PCI: dwc: Correct msi_irq condition in dw_pcie_free_msi() Dmitry Baryshkov
2022-05-05  9:12 ` Dmitry Baryshkov [this message]
2022-05-05  9:12 ` [PATCH v6 4/7] PCI: dwc: Export several functions useful for MSI implentations Dmitry Baryshkov
2022-05-05  9:37   ` Stanimir Varbanov
2022-05-05  9:12 ` [PATCH v6 5/7] PCI: qcom: Handle MSIs routed to multiple GIC interrupts Dmitry Baryshkov
2022-05-05  9:49   ` Stanimir Varbanov
2022-05-05  9:12 ` [PATCH v6 6/7] dt-bindings: PCI: qcom: Support additional MSI interrupts Dmitry Baryshkov
2022-05-05  9:12 ` [PATCH v6 7/7] arm64: dts: qcom: sm8250: provide " Dmitry Baryshkov

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