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| author | Wu Hao <hao.wu@intel.com> | 2019-08-04 18:20:15 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-08-05 18:01:24 +0200 |
| commit | 15bbb300fcef4e62e4f6063cc29e698796027b98 (patch) | |
| tree | fa0e0c6ef9da511c4b53d9a447116717956341fa /drivers/fpga/dfl.c | |
| parent | d2ad5ac1cda7c30c9ded04d0e21aba528f1f96ec (diff) | |
| download | lwn-15bbb300fcef4e62e4f6063cc29e698796027b98.tar.gz lwn-15bbb300fcef4e62e4f6063cc29e698796027b98.zip | |
fpga: dfl: add id_table for dfl private feature driver
This patch adds id_table for each dfl private feature driver,
it allows to reuse same private feature driver to match and support
multiple dfl private features.
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Moritz Fischer <mdf@kernel.org>
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Link: https://lore.kernel.org/r/1564914022-3710-6-git-send-email-hao.wu@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/fpga/dfl.c')
| -rw-r--r-- | drivers/fpga/dfl.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/fpga/dfl.c b/drivers/fpga/dfl.c index b9137044b667..87eaef6d2723 100644 --- a/drivers/fpga/dfl.c +++ b/drivers/fpga/dfl.c @@ -281,6 +281,21 @@ static int dfl_feature_instance_init(struct platform_device *pdev, return ret; } +static bool dfl_feature_drv_match(struct dfl_feature *feature, + struct dfl_feature_driver *driver) +{ + const struct dfl_feature_id *ids = driver->id_table; + + if (ids) { + while (ids->id) { + if (ids->id == feature->id) + return true; + ids++; + } + } + return false; +} + /** * dfl_fpga_dev_feature_init - init for sub features of dfl feature device * @pdev: feature device. @@ -301,8 +316,7 @@ int dfl_fpga_dev_feature_init(struct platform_device *pdev, while (drv->ops) { dfl_fpga_dev_for_each_feature(pdata, feature) { - /* match feature and drv using id */ - if (feature->id == drv->id) { + if (dfl_feature_drv_match(feature, drv)) { ret = dfl_feature_instance_init(pdev, pdata, feature, drv); if (ret) |