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20:HrLoKfR2UQLmx3x5nLrBdgyimEdHQ9v5f7zymfmyIjnMlsqEUo8GiZwxzm6gzLqW8rXwlIal7bhpft45Em8ZOxojalbuETQeEbwd1LCziOcw+eSTSkIVTrpMyh/+TmDLO734Xy/oB+fJIndqAPshA+dCwjWvx9gblTIhb+1++dE= X-OriginatorOrg: renesas.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 17 Oct 2016 08:36:12.9504 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-Transport-CrossTenantHeadersStamped: SG2PR0601MB1455 Cc: Linux-DT , Linux-ALSA , Liam Girdwood , Linux-Kernel , Simon , Laurent , Grant Likely , Frank Rowand , Guennadi Subject: [alsa-devel] [PATCH 13/23] of_graph: add of_graph_port_type_is() 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: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org X-Virus-Scanned: ClamAV using ClamSMTP From: Kuninori Morimoto OF graph indicates each devices connection. But it doesn't support type of each port. For example HDMI case, it has video port and sound port in one device node. In this case, current driver can't handle each port correctly. This patch adds of_graph_port_type_is() for it, and adds of_graph_port_type_is_sound macro Signed-off-by: Kuninori Morimoto --- drivers/of/base.c | 14 ++++++++++++++ include/linux/of_graph.h | 8 ++++++++ 2 files changed, 22 insertions(+) diff --git a/drivers/of/base.c b/drivers/of/base.c index e3cdc5d..b035cff4 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -2413,3 +2413,17 @@ struct device_node *of_graph_get_remote_port(const struct device_node *node) return of_get_next_parent(np); } EXPORT_SYMBOL(of_graph_get_remote_port); + +bool of_graph_port_type_is(struct device_node *port, char *type) +{ + const char *prop = NULL; + + of_property_read_string(port, "type", &prop); + + if (prop && + strcmp(prop, type) == 0) + return true; + + return false; +} +EXPORT_SYMBOL(of_graph_port_type_is); diff --git a/include/linux/of_graph.h b/include/linux/of_graph.h index d9d6d9c..0a06441 100644 --- a/include/linux/of_graph.h +++ b/include/linux/of_graph.h @@ -40,9 +40,12 @@ struct of_endpoint { for (child = of_graph_get_next_endpoint(parent, NULL); child != NULL; \ child = of_graph_get_next_endpoint(parent, child)) +#define of_graph_port_type_is_sound(n) of_graph_port_type_is(n, "sound") + #ifdef CONFIG_OF int of_graph_parse_endpoint(const struct device_node *node, struct of_endpoint *endpoint); +bool of_graph_port_type_is(struct device_node *port, char *type); struct device_node *of_graph_get_port_by_id(struct device_node *node, u32 id); struct device_node *of_graph_get_next_endpoint(const struct device_node *parent, struct device_node *previous); @@ -61,6 +64,11 @@ static inline int of_graph_parse_endpoint(const struct device_node *node, return -ENOSYS; } +static bool of_graph_port_type_is(struct device_node *port, char *type) +{ + return false; +} + static inline struct device_node *of_graph_get_port_by_id( struct device_node *node, u32 id) {