| From 4d471534e43faa65c85b446546503f92e9d632a6 Mon Sep 17 00:00:00 2001 |
| From: Wu Hao <hao.wu@intel.com> |
| Date: Sat, 30 Jun 2018 08:53:18 +0800 |
| Subject: [PATCH 1712/1795] fpga: dfl: add dfl_fpga_check_port_id function. |
| |
| This patch adds one common function in DFL framework. It uses |
| port_ops get_id callback to get port id and compare it with given |
| value. This function could be used as match function of the |
| dfl_fpga_cdev_find_port function. |
| |
| Signed-off-by: Wu Hao <hao.wu@intel.com> |
| Acked-by: Alan Tull <atull@kernel.org> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| (cherry picked from commit d06b004b99c960828523e581a3b7d109dfc1329b) |
| Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> |
| --- |
| drivers/fpga/dfl.c | 22 ++++++++++++++++++++++ |
| drivers/fpga/dfl.h | 1 + |
| 2 files changed, 23 insertions(+) |
| |
| diff --git a/drivers/fpga/dfl.c b/drivers/fpga/dfl.c |
| index 421668ab613e..a9b521bccb06 100644 |
| --- a/drivers/fpga/dfl.c |
| +++ b/drivers/fpga/dfl.c |
| @@ -215,6 +215,28 @@ void dfl_fpga_port_ops_del(struct dfl_fpga_port_ops *ops) |
| } |
| EXPORT_SYMBOL_GPL(dfl_fpga_port_ops_del); |
| |
| +/** |
| + * dfl_fpga_check_port_id - check the port id |
| + * @pdev: port platform device. |
| + * @pport_id: port id to compare. |
| + * |
| + * Return: 1 if port device matches with given port id, otherwise 0. |
| + */ |
| +int dfl_fpga_check_port_id(struct platform_device *pdev, void *pport_id) |
| +{ |
| + struct dfl_fpga_port_ops *port_ops = dfl_fpga_port_ops_get(pdev); |
| + int port_id; |
| + |
| + if (!port_ops || !port_ops->get_id) |
| + return 0; |
| + |
| + port_id = port_ops->get_id(pdev); |
| + dfl_fpga_port_ops_put(port_ops); |
| + |
| + return port_id == *(int *)pport_id; |
| +} |
| +EXPORT_SYMBOL_GPL(dfl_fpga_check_port_id); |
| + |
| /** |
| * dfl_fpga_dev_feature_uinit - uinit for sub features of dfl feature device |
| * @pdev: feature device. |
| diff --git a/drivers/fpga/dfl.h b/drivers/fpga/dfl.h |
| index 654e0f694a5f..a8b869e9e5b7 100644 |
| --- a/drivers/fpga/dfl.h |
| +++ b/drivers/fpga/dfl.h |
| @@ -151,6 +151,7 @@ void dfl_fpga_port_ops_add(struct dfl_fpga_port_ops *ops); |
| void dfl_fpga_port_ops_del(struct dfl_fpga_port_ops *ops); |
| struct dfl_fpga_port_ops *dfl_fpga_port_ops_get(struct platform_device *pdev); |
| void dfl_fpga_port_ops_put(struct dfl_fpga_port_ops *ops); |
| +int dfl_fpga_check_port_id(struct platform_device *pdev, void *pport_id); |
| |
| /** |
| * struct dfl_feature_driver - sub feature's driver |
| -- |
| 2.19.0 |
| |