diff options
| author | Boris BREZILLON <boris.brezillon@free-electrons.com> | 2014-05-14 14:38:16 +0200 |
|---|---|---|
| committer | Maxime Ripard <maxime.ripard@free-electrons.com> | 2014-05-15 10:31:04 +0200 |
| commit | cd90f0cf4454861a4f87bdfdcf01e8b98cc94869 (patch) | |
| tree | 1f806c2c3537ea31db953815ae7b02a348bfc68d /drivers/reset | |
| parent | reset: sunxi: document sunxi's reset controllers bindings (diff) | |
| download | linux-cd90f0cf4454861a4f87bdfdcf01e8b98cc94869.tar.xz linux-cd90f0cf4454861a4f87bdfdcf01e8b98cc94869.zip | |
reset: sunxi: allow MFD subdevices probe
The current implementation uses sunxi_reset_init function for both early
init and platform device probe.
The sunxi_reset_init function uses DT to retrieve device resources, which
will be an issue if reset controllers are registered from an MFD device
that define resources from mfd_cell definition.
Moreover, we can make of devm functions when we're in the probe context.
Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Diffstat (limited to 'drivers/reset')
| -rw-r--r-- | drivers/reset/reset-sunxi.c | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/drivers/reset/reset-sunxi.c b/drivers/reset/reset-sunxi.c index 695bd3496eba..a94e7a7820b4 100644 --- a/drivers/reset/reset-sunxi.c +++ b/drivers/reset/reset-sunxi.c @@ -145,7 +145,24 @@ MODULE_DEVICE_TABLE(of, sunxi_reset_dt_ids); static int sunxi_reset_probe(struct platform_device *pdev) { - return sunxi_reset_init(pdev->dev.of_node); + struct sunxi_reset_data *data; + struct resource *res; + + data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + data->membase = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(data->membase)) + return PTR_ERR(data->membase); + + data->rcdev.owner = THIS_MODULE; + data->rcdev.nr_resets = resource_size(res) * 32; + data->rcdev.ops = &sunxi_reset_ops; + data->rcdev.of_node = pdev->dev.of_node; + + return reset_controller_register(&data->rcdev); } static int sunxi_reset_remove(struct platform_device *pdev) @@ -153,8 +170,6 @@ static int sunxi_reset_remove(struct platform_device *pdev) struct sunxi_reset_data *data = platform_get_drvdata(pdev); reset_controller_unregister(&data->rcdev); - iounmap(data->membase); - kfree(data); return 0; } |