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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 18:50:12 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 18:50:12 +0000 |
| commit | 8665bd53f2f2e27e5511d90428cb3f60e6d0ce15 (patch) | |
| tree | 8d58900dc0ebd4a3011f92c128d2fe45bc7c4bf2 /drivers/mux | |
| parent | Adding debian version 6.7.12-1. (diff) | |
| download | linux-8665bd53f2f2e27e5511d90428cb3f60e6d0ce15.tar.xz linux-8665bd53f2f2e27e5511d90428cb3f60e6d0ce15.zip | |
Merging upstream version 6.8.9.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/mux')
| -rw-r--r-- | drivers/mux/mmio.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/drivers/mux/mmio.c b/drivers/mux/mmio.c index fd1d121a58..30a952c343 100644 --- a/drivers/mux/mmio.c +++ b/drivers/mux/mmio.c @@ -44,15 +44,20 @@ static int mux_mmio_probe(struct platform_device *pdev) int ret; int i; - if (of_device_is_compatible(np, "mmio-mux")) + if (of_device_is_compatible(np, "mmio-mux")) { regmap = syscon_node_to_regmap(np->parent); - else - regmap = dev_get_regmap(dev->parent, NULL) ?: ERR_PTR(-ENODEV); - if (IS_ERR(regmap)) { - ret = PTR_ERR(regmap); - dev_err(dev, "failed to get regmap: %d\n", ret); - return ret; + } else { + regmap = device_node_to_regmap(np); + /* Fallback to checking the parent node on "real" errors. */ + if (IS_ERR(regmap) && regmap != ERR_PTR(-EPROBE_DEFER)) { + regmap = dev_get_regmap(dev->parent, NULL); + if (!regmap) + regmap = ERR_PTR(-ENODEV); + } } + if (IS_ERR(regmap)) + return dev_err_probe(dev, PTR_ERR(regmap), + "failed to get regmap\n"); ret = of_property_count_u32_elems(np, "mux-reg-masks"); if (ret == 0 || ret % 2) |