| Message ID | 1539080245-25818-2-git-send-email-svellattu@mvista.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v3,1/2] Driver core: add bus_find_device_by_fwnode | expand |
On Tue, Oct 09, 2018 at 03:47:25PM +0530, Silesh C V wrote: > Use bus_find_device_by_fwnode helper to find the device having a > specific firmware node on a bus. > > Signed-off-by: Silesh C V <svellattu@mvista.com> > Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> > Reviewed-by: Rob Herring <robh@kernel.org> > --- > Changes since v2: > - Add Reviewed-by tags > > drivers/hwtracing/coresight/of_coresight.c | 14 ++++---------- > drivers/i2c/i2c-core-of.c | 9 ++------- > drivers/infiniband/hw/hns/hns_roce_hw_v1.c | 8 +------- > drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c | 8 +------- > drivers/nvmem/core.c | 7 +------ > drivers/of/of_mdio.c | 8 +------- > drivers/of/platform.c | 7 +------ > drivers/spi/spi.c | 10 +++------- > 8 files changed, 14 insertions(+), 57 deletions(-) > > diff --git a/drivers/hwtracing/coresight/of_coresight.c b/drivers/hwtracing/coresight/of_coresight.c > index 6880bee..8193b50 100644 > --- a/drivers/hwtracing/coresight/of_coresight.c > +++ b/drivers/hwtracing/coresight/of_coresight.c > @@ -17,12 +17,6 @@ > #include <linux/cpumask.h> > #include <asm/smp_plat.h> > > - > -static int of_dev_node_match(struct device *dev, void *data) > -{ > - return dev->of_node == data; > -} > - > static struct device * > of_coresight_get_endpoint_device(struct device_node *endpoint) > { > @@ -32,8 +26,8 @@ static int of_dev_node_match(struct device *dev, void *data) > * If we have a non-configurable replicator, it will be found on the > * platform bus. > */ > - dev = bus_find_device(&platform_bus_type, NULL, > - endpoint, of_dev_node_match); > + dev = bus_find_device_by_fwnode(&platform_bus_type, NULL, > + &endpoint->fwnode); > if (dev) > return dev; > > @@ -41,8 +35,8 @@ static int of_dev_node_match(struct device *dev, void *data) > * We have a configurable component - circle through the AMBA bus > * looking for the device that matches the endpoint node. > */ > - return bus_find_device(&amba_bustype, NULL, > - endpoint, of_dev_node_match); > + return bus_find_device_by_fwnode(&amba_bustype, NULL, > + &endpoint->fwnode); This doesn't apply on linux-next. This late in the cycle you may want to rebase your work on that tree. Otherwise and for the coresight part: Tested-by: Mathieu Poirier <mathieu.poirier@linaro.org> Mathieu > } > > static void of_coresight_get_ports(const struct device_node *node, > diff --git a/drivers/i2c/i2c-core-of.c b/drivers/i2c/i2c-core-of.c > index 6cb7ad6..2b8ef8d 100644 > --- a/drivers/i2c/i2c-core-of.c > +++ b/drivers/i2c/i2c-core-of.c > @@ -116,18 +116,13 @@ void of_i2c_register_devices(struct i2c_adapter *adap) > of_node_put(bus); > } > > -static int of_dev_node_match(struct device *dev, void *data) > -{ > - return dev->of_node == data; > -} > - > /* must call put_device() when done with returned i2c_client device */ > struct i2c_client *of_find_i2c_device_by_node(struct device_node *node) > { > struct device *dev; > struct i2c_client *client; > > - dev = bus_find_device(&i2c_bus_type, NULL, node, of_dev_node_match); > + dev = bus_find_device_by_fwnode(&i2c_bus_type, NULL, &node->fwnode); > if (!dev) > return NULL; > > @@ -145,7 +140,7 @@ struct i2c_adapter *of_find_i2c_adapter_by_node(struct device_node *node) > struct device *dev; > struct i2c_adapter *adapter; > > - dev = bus_find_device(&i2c_bus_type, NULL, node, of_dev_node_match); > + dev = bus_find_device_by_fwnode(&i2c_bus_type, NULL, &node->fwnode); > if (!dev) > return NULL; > > diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v1.c b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c > index 081aa91..b0d418e 100644 > --- a/drivers/infiniband/hw/hns/hns_roce_hw_v1.c > +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c > @@ -4832,19 +4832,13 @@ static void hns_roce_v1_cleanup_eq_table(struct hns_roce_dev *hr_dev) > }; > MODULE_DEVICE_TABLE(acpi, hns_roce_acpi_match); > > -static int hns_roce_node_match(struct device *dev, void *fwnode) > -{ > - return dev->fwnode == fwnode; > -} > - > static struct > platform_device *hns_roce_find_pdev(struct fwnode_handle *fwnode) > { > struct device *dev; > > /* get the 'device' corresponding to the matching 'fwnode' */ > - dev = bus_find_device(&platform_bus_type, NULL, > - fwnode, hns_roce_node_match); > + dev = bus_find_device_by_fwnode(&platform_bus_type, NULL, fwnode); > /* get the platform device */ > return dev ? to_platform_device(dev) : NULL; > } > diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c > index 16294cd..d5d7c88 100644 > --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c > +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c > @@ -758,17 +758,11 @@ struct dsaf_misc_op *hns_misc_op_get(struct dsaf_device *dsaf_dev) > return (void *)misc_op; > } > > -static int hns_dsaf_dev_match(struct device *dev, void *fwnode) > -{ > - return dev->fwnode == fwnode; > -} > - > struct > platform_device *hns_dsaf_find_platform_device(struct fwnode_handle *fwnode) > { > struct device *dev; > > - dev = bus_find_device(&platform_bus_type, NULL, > - fwnode, hns_dsaf_dev_match); > + dev = bus_find_device_by_fwnode(&platform_bus_type, NULL, fwnode); > return dev ? to_platform_device(dev) : NULL; > } > diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c > index aa16578..b62f236 100644 > --- a/drivers/nvmem/core.c > +++ b/drivers/nvmem/core.c > @@ -262,11 +262,6 @@ static void nvmem_release(struct device *dev) > .name = "nvmem", > }; > > -static int of_nvmem_match(struct device *dev, void *nvmem_np) > -{ > - return dev->of_node == nvmem_np; > -} > - > static struct nvmem_device *of_nvmem_find(struct device_node *nvmem_np) > { > struct device *d; > @@ -274,7 +269,7 @@ static struct nvmem_device *of_nvmem_find(struct device_node *nvmem_np) > if (!nvmem_np) > return NULL; > > - d = bus_find_device(&nvmem_bus_type, NULL, nvmem_np, of_nvmem_match); > + d = bus_find_device_by_fwnode(&nvmem_bus_type, NULL, &nvmem_np->fwnode); > > if (!d) > return NULL; > diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c > index e92391d..2906a6b 100644 > --- a/drivers/of/of_mdio.c > +++ b/drivers/of/of_mdio.c > @@ -282,12 +282,6 @@ int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np) > } > EXPORT_SYMBOL(of_mdiobus_register); > > -/* Helper function for of_phy_find_device */ > -static int of_phy_match(struct device *dev, void *phy_np) > -{ > - return dev->of_node == phy_np; > -} > - > /** > * of_phy_find_device - Give a PHY node, find the phy_device > * @phy_np: Pointer to the phy's device tree node > @@ -303,7 +297,7 @@ struct phy_device *of_phy_find_device(struct device_node *phy_np) > if (!phy_np) > return NULL; > > - d = bus_find_device(&mdio_bus_type, NULL, phy_np, of_phy_match); > + d = bus_find_device_by_fwnode(&mdio_bus_type, NULL, &phy_np->fwnode); > if (d) { > mdiodev = to_mdio_device(d); > if (mdiodev->flags & MDIO_DEVICE_FLAG_PHY) > diff --git a/drivers/of/platform.c b/drivers/of/platform.c > index 6c59673..36dd58e 100644 > --- a/drivers/of/platform.c > +++ b/drivers/of/platform.c > @@ -37,11 +37,6 @@ > {} /* Empty terminated list */ > }; > > -static int of_dev_node_match(struct device *dev, void *data) > -{ > - return dev->of_node == data; > -} > - > /** > * of_find_device_by_node - Find the platform_device associated with a node > * @np: Pointer to device tree node > @@ -55,7 +50,7 @@ struct platform_device *of_find_device_by_node(struct device_node *np) > { > struct device *dev; > > - dev = bus_find_device(&platform_bus_type, NULL, np, of_dev_node_match); > + dev = bus_find_device_by_fwnode(&platform_bus_type, NULL, &np->fwnode); > return dev ? to_platform_device(dev) : NULL; > } > EXPORT_SYMBOL(of_find_device_by_node); > diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c > index 9da0bc5..97128a5 100644 > --- a/drivers/spi/spi.c > +++ b/drivers/spi/spi.c > @@ -3324,16 +3324,12 @@ int spi_write_then_read(struct spi_device *spi, > /*-------------------------------------------------------------------------*/ > > #if IS_ENABLED(CONFIG_OF_DYNAMIC) > -static int __spi_of_device_match(struct device *dev, void *data) > -{ > - return dev->of_node == data; > -} > - > /* must call put_device() when done with returned spi_device device */ > static struct spi_device *of_find_spi_device_by_node(struct device_node *node) > { > - struct device *dev = bus_find_device(&spi_bus_type, NULL, node, > - __spi_of_device_match); > + struct device *dev = bus_find_device_by_fwnode(&spi_bus_type, NULL, > + &node->fwnode); > + > return dev ? to_spi_device(dev) : NULL; > } > > -- > 1.9.1 >
Hello Mathieu, On Tue, Oct 9, 2018 at 11:14 PM Mathieu Poirier <mathieu.poirier@linaro.org> wrote: > > > This doesn't apply on linux-next. This late in the cycle you may want to rebase > your work on that tree. OK. Will send v4 after rebasing onto linux-next. > > Otherwise and for the coresight part: > > Tested-by: Mathieu Poirier <mathieu.poirier@linaro.org> > Thanks. Regards, Silesh.
On Tue, Oct 9, 2018 at 9:59 PM Silesh C V <svellattu@mvista.com> wrote: > > Hello Mathieu, > > On Tue, Oct 9, 2018 at 11:14 PM Mathieu Poirier > <mathieu.poirier@linaro.org> wrote: > > > > > > This doesn't apply on linux-next. This late in the cycle you may want to rebase > > your work on that tree. > > OK. Will send v4 after rebasing onto linux-next. That doesn't help anything unless you are targeting 4.21. If you are it would be easiest to apply patch 1 in 4.20 and split this patch by subsystem for 4.21. That avoids any cross subsystem dependencies. Rob
diff --git a/drivers/hwtracing/coresight/of_coresight.c b/drivers/hwtracing/coresight/of_coresight.c index 6880bee..8193b50 100644 --- a/drivers/hwtracing/coresight/of_coresight.c +++ b/drivers/hwtracing/coresight/of_coresight.c @@ -17,12 +17,6 @@ #include <linux/cpumask.h> #include <asm/smp_plat.h> - -static int of_dev_node_match(struct device *dev, void *data) -{ - return dev->of_node == data; -} - static struct device * of_coresight_get_endpoint_device(struct device_node *endpoint) { @@ -32,8 +26,8 @@ static int of_dev_node_match(struct device *dev, void *data) * If we have a non-configurable replicator, it will be found on the * platform bus. */ - dev = bus_find_device(&platform_bus_type, NULL, - endpoint, of_dev_node_match); + dev = bus_find_device_by_fwnode(&platform_bus_type, NULL, + &endpoint->fwnode); if (dev) return dev; @@ -41,8 +35,8 @@ static int of_dev_node_match(struct device *dev, void *data) * We have a configurable component - circle through the AMBA bus * looking for the device that matches the endpoint node. */ - return bus_find_device(&amba_bustype, NULL, - endpoint, of_dev_node_match); + return bus_find_device_by_fwnode(&amba_bustype, NULL, + &endpoint->fwnode); } static void of_coresight_get_ports(const struct device_node *node, diff --git a/drivers/i2c/i2c-core-of.c b/drivers/i2c/i2c-core-of.c index 6cb7ad6..2b8ef8d 100644 --- a/drivers/i2c/i2c-core-of.c +++ b/drivers/i2c/i2c-core-of.c @@ -116,18 +116,13 @@ void of_i2c_register_devices(struct i2c_adapter *adap) of_node_put(bus); } -static int of_dev_node_match(struct device *dev, void *data) -{ - return dev->of_node == data; -} - /* must call put_device() when done with returned i2c_client device */ struct i2c_client *of_find_i2c_device_by_node(struct device_node *node) { struct device *dev; struct i2c_client *client; - dev = bus_find_device(&i2c_bus_type, NULL, node, of_dev_node_match); + dev = bus_find_device_by_fwnode(&i2c_bus_type, NULL, &node->fwnode); if (!dev) return NULL; @@ -145,7 +140,7 @@ struct i2c_adapter *of_find_i2c_adapter_by_node(struct device_node *node) struct device *dev; struct i2c_adapter *adapter; - dev = bus_find_device(&i2c_bus_type, NULL, node, of_dev_node_match); + dev = bus_find_device_by_fwnode(&i2c_bus_type, NULL, &node->fwnode); if (!dev) return NULL; diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v1.c b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c index 081aa91..b0d418e 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v1.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c @@ -4832,19 +4832,13 @@ static void hns_roce_v1_cleanup_eq_table(struct hns_roce_dev *hr_dev) }; MODULE_DEVICE_TABLE(acpi, hns_roce_acpi_match); -static int hns_roce_node_match(struct device *dev, void *fwnode) -{ - return dev->fwnode == fwnode; -} - static struct platform_device *hns_roce_find_pdev(struct fwnode_handle *fwnode) { struct device *dev; /* get the 'device' corresponding to the matching 'fwnode' */ - dev = bus_find_device(&platform_bus_type, NULL, - fwnode, hns_roce_node_match); + dev = bus_find_device_by_fwnode(&platform_bus_type, NULL, fwnode); /* get the platform device */ return dev ? to_platform_device(dev) : NULL; } diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c index 16294cd..d5d7c88 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c @@ -758,17 +758,11 @@ struct dsaf_misc_op *hns_misc_op_get(struct dsaf_device *dsaf_dev) return (void *)misc_op; } -static int hns_dsaf_dev_match(struct device *dev, void *fwnode) -{ - return dev->fwnode == fwnode; -} - struct platform_device *hns_dsaf_find_platform_device(struct fwnode_handle *fwnode) { struct device *dev; - dev = bus_find_device(&platform_bus_type, NULL, - fwnode, hns_dsaf_dev_match); + dev = bus_find_device_by_fwnode(&platform_bus_type, NULL, fwnode); return dev ? to_platform_device(dev) : NULL; } diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c index aa16578..b62f236 100644 --- a/drivers/nvmem/core.c +++ b/drivers/nvmem/core.c @@ -262,11 +262,6 @@ static void nvmem_release(struct device *dev) .name = "nvmem", }; -static int of_nvmem_match(struct device *dev, void *nvmem_np) -{ - return dev->of_node == nvmem_np; -} - static struct nvmem_device *of_nvmem_find(struct device_node *nvmem_np) { struct device *d; @@ -274,7 +269,7 @@ static struct nvmem_device *of_nvmem_find(struct device_node *nvmem_np) if (!nvmem_np) return NULL; - d = bus_find_device(&nvmem_bus_type, NULL, nvmem_np, of_nvmem_match); + d = bus_find_device_by_fwnode(&nvmem_bus_type, NULL, &nvmem_np->fwnode); if (!d) return NULL; diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c index e92391d..2906a6b 100644 --- a/drivers/of/of_mdio.c +++ b/drivers/of/of_mdio.c @@ -282,12 +282,6 @@ int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np) } EXPORT_SYMBOL(of_mdiobus_register); -/* Helper function for of_phy_find_device */ -static int of_phy_match(struct device *dev, void *phy_np) -{ - return dev->of_node == phy_np; -} - /** * of_phy_find_device - Give a PHY node, find the phy_device * @phy_np: Pointer to the phy's device tree node @@ -303,7 +297,7 @@ struct phy_device *of_phy_find_device(struct device_node *phy_np) if (!phy_np) return NULL; - d = bus_find_device(&mdio_bus_type, NULL, phy_np, of_phy_match); + d = bus_find_device_by_fwnode(&mdio_bus_type, NULL, &phy_np->fwnode); if (d) { mdiodev = to_mdio_device(d); if (mdiodev->flags & MDIO_DEVICE_FLAG_PHY) diff --git a/drivers/of/platform.c b/drivers/of/platform.c index 6c59673..36dd58e 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -37,11 +37,6 @@ {} /* Empty terminated list */ }; -static int of_dev_node_match(struct device *dev, void *data) -{ - return dev->of_node == data; -} - /** * of_find_device_by_node - Find the platform_device associated with a node * @np: Pointer to device tree node @@ -55,7 +50,7 @@ struct platform_device *of_find_device_by_node(struct device_node *np) { struct device *dev; - dev = bus_find_device(&platform_bus_type, NULL, np, of_dev_node_match); + dev = bus_find_device_by_fwnode(&platform_bus_type, NULL, &np->fwnode); return dev ? to_platform_device(dev) : NULL; } EXPORT_SYMBOL(of_find_device_by_node); diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 9da0bc5..97128a5 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -3324,16 +3324,12 @@ int spi_write_then_read(struct spi_device *spi, /*-------------------------------------------------------------------------*/ #if IS_ENABLED(CONFIG_OF_DYNAMIC) -static int __spi_of_device_match(struct device *dev, void *data) -{ - return dev->of_node == data; -} - /* must call put_device() when done with returned spi_device device */ static struct spi_device *of_find_spi_device_by_node(struct device_node *node) { - struct device *dev = bus_find_device(&spi_bus_type, NULL, node, - __spi_of_device_match); + struct device *dev = bus_find_device_by_fwnode(&spi_bus_type, NULL, + &node->fwnode); + return dev ? to_spi_device(dev) : NULL; }