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[86.26.100.93]) by smtp.gmail.com with ESMTPSA id k69sm10673615wmg.8.2017.12.11.15.45.19 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 11 Dec 2017 15:45:19 -0800 (PST) From: srinivas.kandagatla@linaro.org To: Mark Brown , Greg Kroah-Hartman , alsa-devel@alsa-project.org Date: Mon, 11 Dec 2017 23:42:59 +0000 Message-Id: <20171211234307.14465-6-srinivas.kandagatla@linaro.org> X-Mailer: git-send-email 2.15.0 In-Reply-To: <20171211234307.14465-1-srinivas.kandagatla@linaro.org> References: <20171211234307.14465-1-srinivas.kandagatla@linaro.org> Cc: Mark Rutland , devicetree@vger.kernel.org, Jonathan Corbet , linux-arm-msm@vger.kernel.org, linux-doc@vger.kernel.org, j.neuschaefer@gmx.net, linux-kernel@vger.kernel.org, Rob Herring , Srinivas Kandagatla , pombredanne@nexb.com, sdharia@codeaurora.org Subject: [alsa-devel] [PATCH v10 05/13] slimbus: core: add support to device tree helper X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org From: Srinivas Kandagatla This patch adds support to parse slim devices from device tree. Signed-off-by: Srinivas Kandagatla --- drivers/slimbus/core.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) -- 2.15.0 _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org http://mailman.alsa-project.org/mailman/listinfo/alsa-devel diff --git a/drivers/slimbus/core.c b/drivers/slimbus/core.c index ed53ae6bd1cc..1accb20ed5cd 100644 --- a/drivers/slimbus/core.c +++ b/drivers/slimbus/core.c @@ -8,6 +8,7 @@ #include #include #include +#include #include #include "slimbus.h" @@ -113,6 +114,9 @@ static int slim_add_device(struct slim_controller *ctrl, sbdev->dev.driver = NULL; sbdev->ctrl = ctrl; + if (node) + sbdev->dev.of_node = of_node_get(node); + dev_set_name(&sbdev->dev, "%x:%x:%x:%x", sbdev->e_addr.manf_id, sbdev->e_addr.prod_code, @@ -143,6 +147,50 @@ static struct slim_device *slim_alloc_device(struct slim_controller *ctrl, return sbdev; } +static void of_register_slim_devices(struct slim_controller *ctrl) +{ + struct device *dev = ctrl->dev; + struct device_node *node; + + if (!ctrl->dev->of_node) + return; + + for_each_child_of_node(ctrl->dev->of_node, node) { + struct slim_device *sbdev; + struct slim_eaddr e_addr; + const char *compat = NULL; + int reg[2], ret; + int manf_id, prod_code; + + compat = of_get_property(node, "compatible", NULL); + if (!compat) + continue; + + ret = sscanf(compat, "slim%x,%x", &manf_id, &prod_code); + if (ret != 2) { + dev_err(dev, "Manf ID & Product code not found %s\n", + compat); + continue; + } + + ret = of_property_read_u32_array(node, "reg", reg, 2); + if (ret) { + dev_err(dev, "Device and Instance id not found:%d\n", + ret); + continue; + } + + e_addr.dev_index = reg[0]; + e_addr.instance = reg[1]; + e_addr.manf_id = manf_id; + e_addr.prod_code = prod_code; + + sbdev = slim_alloc_device(ctrl, &e_addr, node); + if (!sbdev) + continue; + } +} + /* * slim_register_controller() - Controller bring-up and registration. * @@ -174,6 +222,8 @@ int slim_register_controller(struct slim_controller *ctrl) dev_dbg(ctrl->dev, "Bus [%s] registered:dev:%p\n", ctrl->name, ctrl->dev); + of_register_slim_devices(ctrl); + return 0; } EXPORT_SYMBOL_GPL(slim_register_controller);