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, "linux-kernel@vger.kernel.org" , "kthota@nvidia.com" , "mmaddireddy@nvidia.com" , "sagar.tv@gmail.com" Subject: RE: [PATCH 1/2] PCI: dwc: Add API support to de-initialize host Thread-Topic: [PATCH 1/2] PCI: dwc: Add API support to de-initialize host Thread-Index: AQHU6uDRR4lSZpzHU0qiLOlhqj2OzKY+3UFg Date: Tue, 16 Apr 2019 13:39:03 +0000 Message-ID: <305100E33629484CBB767107E4246BBB0A22B657@de02wembxa.internal.synopsys.com> References: <1554380425-29215-1-git-send-email-vidyas@nvidia.com> <1554380425-29215-2-git-send-email-vidyas@nvidia.com> In-Reply-To: <1554380425-29215-2-git-send-email-vidyas@nvidia.com> Accept-Language: pt-PT, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-dg-ref: =?us-ascii?Q?PG1ldGE+PGF0IG5tPSJib2R5LnR4dCIgcD0iYzpcdXNlcnNcZ3VzdGF2b1xh?= =?us-ascii?Q?cHBkYXRhXHJvYW1pbmdcMDlkODQ5YjYtMzJkMy00YTQwLTg1ZWUtNmI4NGJh?= =?us-ascii?Q?MjllMzViXG1zZ3NcbXNnLWZlMzY4YzA2LTYwNGMtMTFlOS05ODdkLWY4OTRj?= 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=?us-ascii?Q?QUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFB?= =?us-ascii?Q?QUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFB?= =?us-ascii?Q?QUFBQUFBQUFFQUFBQUFBQUFBQWdBQUFBQUFuZ0FBQUhZQVp3QmZBR3NBWlFC?= =?us-ascii?Q?NUFIY0Fid0J5QUdRQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFB?= =?us-ascii?Q?QUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFB?= =?us-ascii?Q?QUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFB?= =?us-ascii?Q?QUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBUUFBQUFB?= =?us-ascii?Q?QUFBQUNBQUFBQUFBPSIvPjwvbWV0YT4=3D?= x-originating-ip: [10.107.25.131] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org On Thu, Apr 4, 2019 at 13:20:23, Vidya Sagar wrote: > Add an API to group all the tasks to be done to de-initialize host which > can then be called by any Designware core based driver implementations s/Designware/DesignWare > while adding .remove() support in their respective drivers. >=20 > Signed-off-by: Vidya Sagar > --- > drivers/pci/controller/dwc/pcie-designware-host.c | 7 +++++++ > drivers/pci/controller/dwc/pcie-designware.h | 5 +++++ > 2 files changed, 12 insertions(+) >=20 > diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/= pci/controller/dwc/pcie-designware-host.c > index 3e4169e738a5..d7881490282d 100644 > --- a/drivers/pci/controller/dwc/pcie-designware-host.c > +++ b/drivers/pci/controller/dwc/pcie-designware-host.c > @@ -516,6 +516,13 @@ int dw_pcie_host_init(struct pcie_port *pp) > return ret; > } > =20 > +void dw_pcie_host_deinit(struct pcie_port *pp) > +{ > + pci_stop_root_bus(pp->root_bus); > + pci_remove_root_bus(pp->root_bus); > + dw_pcie_free_msi(pp); > +} > + > static int dw_pcie_access_other_conf(struct pcie_port *pp, struct pci_bu= s *bus, > u32 devfn, int where, int size, u32 *val, > bool write) > diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/c= ontroller/dwc/pcie-designware.h > index adff0c713665..ea8d1caf11c5 100644 > --- a/drivers/pci/controller/dwc/pcie-designware.h > +++ b/drivers/pci/controller/dwc/pcie-designware.h > @@ -343,6 +343,7 @@ void dw_pcie_msi_init(struct pcie_port *pp); > void dw_pcie_free_msi(struct pcie_port *pp); > void dw_pcie_setup_rc(struct pcie_port *pp); > int dw_pcie_host_init(struct pcie_port *pp); > +void dw_pcie_host_deinit(struct pcie_port *pp); > int dw_pcie_allocate_domains(struct pcie_port *pp); > #else > static inline irqreturn_t dw_handle_msi_irq(struct pcie_port *pp) > @@ -367,6 +368,10 @@ static inline int dw_pcie_host_init(struct pcie_port= *pp) > return 0; > } > =20 > +static inline void dw_pcie_host_deinit(struct pcie_port *pp) > +{ > +} > + > static inline int dw_pcie_allocate_domains(struct pcie_port *pp) > { > return 0; > --=20 > 2.7.4