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[71.218.50.136]) by smtp.gmail.com with ESMTPSA id bp22-20020a056638441600b0046b39a6f404sm177805jab.17.2023.12.20.15.55.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 20 Dec 2023 15:55:26 -0800 (PST) From: Mark Hasemeyer To: LKML Cc: AngeloGioacchino Del Regno , Krzysztof Kozlowski , Tzung-Bi Shih , Raul Rangel , Konrad Dybcio , Andy Shevchenko , Rob Herring , Sudeep Holla , Mark Hasemeyer , Andy Shevchenko , Daniel Scally , Frank Rowand , Greg Kroah-Hartman , Heikki Krogerus , Len Brown , "Rafael J. Wysocki" , Rob Herring , Sakari Ailus , devicetree@vger.kernel.org, linux-acpi@vger.kernel.org Subject: [PATCH v2 20/22] device property: Modify fwnode irq_get() to use resource Date: Wed, 20 Dec 2023 16:54:34 -0700 Message-ID: <20231220165423.v2.20.I38ac58ab04985a404ed6551eb5813fa7841ef410@changeid> X-Mailer: git-send-email 2.43.0.472.g3155946c3a-goog In-Reply-To: <20231220235459.2965548-1-markhas@chromium.org> References: <20231220235459.2965548-1-markhas@chromium.org> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 The underlying ACPI and OF subsystems provide their own APIs which provide IRQ information as a struct resource. This allows callers to get more information about the IRQ by looking at the resource flags. For example, whether or not an IRQ is wake capable. Signed-off-by: Mark Hasemeyer Reviewed-by: Sakari Ailus --- Changes in v2: -New patch drivers/acpi/property.c | 11 +++++------ drivers/base/property.c | 24 +++++++++++++++++++++--- drivers/of/property.c | 8 ++++---- include/linux/fwnode.h | 8 +++++--- include/linux/property.h | 2 ++ 5 files changed, 37 insertions(+), 16 deletions(-) diff --git a/drivers/acpi/property.c b/drivers/acpi/property.c index a6ead5204046b..259869987ffff 100644 --- a/drivers/acpi/property.c +++ b/drivers/acpi/property.c @@ -1627,17 +1627,16 @@ static int acpi_fwnode_graph_parse_endpoint(const struct fwnode_handle *fwnode, return 0; } -static int acpi_fwnode_irq_get(const struct fwnode_handle *fwnode, - unsigned int index) +static int acpi_fwnode_irq_get_resource(const struct fwnode_handle *fwnode, + unsigned int index, struct resource *r) { - struct resource res; int ret; - ret = acpi_irq_get(ACPI_HANDLE_FWNODE(fwnode), index, &res); + ret = acpi_irq_get(ACPI_HANDLE_FWNODE(fwnode), index, r); if (ret) return ret; - return res.start; + return r->start; } #define DECLARE_ACPI_FWNODE_OPS(ops) \ @@ -1664,7 +1663,7 @@ static int acpi_fwnode_irq_get(const struct fwnode_handle *fwnode, acpi_graph_get_remote_endpoint, \ .graph_get_port_parent = acpi_fwnode_get_parent, \ .graph_parse_endpoint = acpi_fwnode_graph_parse_endpoint, \ - .irq_get = acpi_fwnode_irq_get, \ + .irq_get_resource = acpi_fwnode_irq_get_resource, \ }; \ EXPORT_SYMBOL_GPL(ops) diff --git a/drivers/base/property.c b/drivers/base/property.c index a1b01ab420528..4f5d5ab5ab8cf 100644 --- a/drivers/base/property.c +++ b/drivers/base/property.c @@ -1047,23 +1047,41 @@ void __iomem *fwnode_iomap(struct fwnode_handle *fwnode, int index) EXPORT_SYMBOL(fwnode_iomap); /** - * fwnode_irq_get - Get IRQ directly from a fwnode + * fwnode_irq_get_resource - Get IRQ directly from a fwnode and populate + * the resource struct * @fwnode: Pointer to the firmware node * @index: Zero-based index of the IRQ + * @r: Pointer to resource to populate with IRQ information. * * Return: Linux IRQ number on success. Negative errno on failure. */ -int fwnode_irq_get(const struct fwnode_handle *fwnode, unsigned int index) +int fwnode_irq_get_resource(const struct fwnode_handle *fwnode, + unsigned int index, struct resource *r) { int ret; - ret = fwnode_call_int_op(fwnode, irq_get, index); + ret = fwnode_call_int_op(fwnode, irq_get_resource, index, r); /* We treat mapping errors as invalid case */ if (ret == 0) return -EINVAL; return ret; } +EXPORT_SYMBOL(fwnode_irq_get_resource); + +/** + * fwnode_irq_get - Get IRQ directly from a fwnode + * @fwnode: Pointer to the firmware node + * @index: Zero-based index of the IRQ + * + * Return: Linux IRQ number on success. Negative errno on failure. + */ +int fwnode_irq_get(const struct fwnode_handle *fwnode, unsigned int index) +{ + struct resource r; + + return fwnode_irq_get_resource(fwnode, index, &r); +} EXPORT_SYMBOL(fwnode_irq_get); /** diff --git a/drivers/of/property.c b/drivers/of/property.c index afdaefbd03f61..864ea5fa5702b 100644 --- a/drivers/of/property.c +++ b/drivers/of/property.c @@ -1425,10 +1425,10 @@ static void __iomem *of_fwnode_iomap(struct fwnode_handle *fwnode, int index) #endif } -static int of_fwnode_irq_get(const struct fwnode_handle *fwnode, - unsigned int index) +static int of_fwnode_irq_get_resource(const struct fwnode_handle *fwnode, + unsigned int index, struct resource *r) { - return of_irq_get(to_of_node(fwnode), index); + return of_irq_to_resource(to_of_node(fwnode), index, r); } static int of_fwnode_add_links(struct fwnode_handle *fwnode) @@ -1469,7 +1469,7 @@ const struct fwnode_operations of_fwnode_ops = { .graph_get_port_parent = of_fwnode_graph_get_port_parent, .graph_parse_endpoint = of_fwnode_graph_parse_endpoint, .iomap = of_fwnode_iomap, - .irq_get = of_fwnode_irq_get, + .irq_get_resource = of_fwnode_irq_get_resource, .add_links = of_fwnode_add_links, }; EXPORT_SYMBOL_GPL(of_fwnode_ops); diff --git a/include/linux/fwnode.h b/include/linux/fwnode.h index 2a72f55d26eb8..716ed863acde0 100644 --- a/include/linux/fwnode.h +++ b/include/linux/fwnode.h @@ -9,10 +9,11 @@ #ifndef _LINUX_FWNODE_H_ #define _LINUX_FWNODE_H_ -#include -#include #include #include +#include +#include +#include struct fwnode_operations; struct device; @@ -164,7 +165,8 @@ struct fwnode_operations { int (*graph_parse_endpoint)(const struct fwnode_handle *fwnode, struct fwnode_endpoint *endpoint); void __iomem *(*iomap)(struct fwnode_handle *fwnode, int index); - int (*irq_get)(const struct fwnode_handle *fwnode, unsigned int index); + int (*irq_get_resource)(const struct fwnode_handle *fwnode, + unsigned int index, struct resource *r); int (*add_links)(struct fwnode_handle *fwnode); }; diff --git a/include/linux/property.h b/include/linux/property.h index e6516d0b7d52a..685ba72a8ce9e 100644 --- a/include/linux/property.h +++ b/include/linux/property.h @@ -190,6 +190,8 @@ struct fwnode_handle *fwnode_handle_get(struct fwnode_handle *fwnode); void fwnode_handle_put(struct fwnode_handle *fwnode); int fwnode_irq_get(const struct fwnode_handle *fwnode, unsigned int index); +int fwnode_irq_get_resource(const struct fwnode_handle *fwnode, + unsigned int index, struct resource *r); int fwnode_irq_get_byname(const struct fwnode_handle *fwnode, const char *name); unsigned int device_get_child_node_count(const struct device *dev);