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Wed, 20 May 2020 19:10:13 -0500 Received: from DLEE113.ent.ti.com (157.170.170.24) by DLEE100.ent.ti.com (157.170.170.30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Wed, 20 May 2020 19:10:13 -0500 Received: from fllv0039.itg.ti.com (10.64.41.19) by DLEE113.ent.ti.com (157.170.170.24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3 via Frontend Transport; Wed, 20 May 2020 19:10:13 -0500 Received: from lelv0597.itg.ti.com (lelv0597.itg.ti.com [10.181.64.32]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id 04L0ADTr065310; Wed, 20 May 2020 19:10:13 -0500 Received: from localhost ([10.250.48.148]) by lelv0597.itg.ti.com (8.14.7/8.14.7) with ESMTP id 04L0ACKH084879; Wed, 20 May 2020 19:10:12 -0500 From: Suman Anna To: Bjorn Andersson , Rob Herring , Mathieu Poirier Subject: [PATCH v2 1/4] remoteproc: Introduce rproc_of_parse_firmware() helper Date: Wed, 20 May 2020 19:10:03 -0500 Message-ID: <20200521001006.2725-2-s-anna@ti.com> X-Mailer: git-send-email 2.26.0 In-Reply-To: <20200521001006.2725-1-s-anna@ti.com> References: <20200521001006.2725-1-s-anna@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200520_171019_270635_DC14DA5F X-CRM114-Status: GOOD ( 13.73 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Lokesh Vutla , linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org, Suman Anna , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add a new helper function rproc_of_parse_firmware() to the remoteproc core that can be used by various remoteproc drivers to look up the the "firmware-name" property from a rproc device node. This property is already being used by multiple drivers, so this helper can avoid repeating equivalent code in remoteproc drivers. Signed-off-by: Suman Anna --- v2: New patch drivers/remoteproc/remoteproc_core.c | 23 +++++++++++++++++++++++ drivers/remoteproc/remoteproc_internal.h | 2 ++ 2 files changed, 25 insertions(+) diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c index 9f04c30c4aaf..c458b218d524 100644 --- a/drivers/remoteproc/remoteproc_core.c +++ b/drivers/remoteproc/remoteproc_core.c @@ -1034,6 +1034,29 @@ rproc_of_resm_mem_entry_init(struct device *dev, u32 of_resm_idx, size_t len, } EXPORT_SYMBOL(rproc_of_resm_mem_entry_init); +/** + * rproc_of_parse_firmware() - parse and return the firmware-name + * @dev: pointer on device struct representing a rproc + * @index: index to use for the firmware-name retrieval + * @fw_name: pointer to a character string, in which the firmware + * name is returned on success and unmodified otherwise. + * + * This is an OF helper function that parses a device's DT node for + * the "firmware-name" property and returns the firmware name pointer + * in @fw_name on success. + * + * Return: 0 on success, or an appropriate failure. + */ +int rproc_of_parse_firmware(struct device *dev, int index, const char **fw_name) +{ + int ret; + + ret = of_property_read_string_index(dev->of_node, "firmware-name", + index, fw_name); + return ret ? ret : 0; +} +EXPORT_SYMBOL(rproc_of_parse_firmware); + /* * A lookup table for resource handlers. The indices are defined in * enum fw_resource_type. diff --git a/drivers/remoteproc/remoteproc_internal.h b/drivers/remoteproc/remoteproc_internal.h index 4ba7cb59d3e8..e5341e91d2fc 100644 --- a/drivers/remoteproc/remoteproc_internal.h +++ b/drivers/remoteproc/remoteproc_internal.h @@ -28,6 +28,8 @@ struct rproc_debug_trace { void rproc_release(struct kref *kref); irqreturn_t rproc_vq_interrupt(struct rproc *rproc, int vq_id); void rproc_vdev_release(struct kref *ref); +int rproc_of_parse_firmware(struct device *dev, int index, + const char **fw_name); /* from remoteproc_virtio.c */ int rproc_add_virtio_dev(struct rproc_vdev *rvdev, int id); -- 2.26.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel