| Message ID | 20200526135102.21236-3-Sergey.Semin@baikalelectronics.ru |
|---|---|
| State | New |
| Headers | show |
| Series | [v3,1/2] dt-bindings: power: reset: Unrequire regmap property in syscon-reboot node | expand |
diff --git a/drivers/power/reset/syscon-reboot.c b/drivers/power/reset/syscon-reboot.c index 62fbba0df971..510e363381ca 100644 --- a/drivers/power/reset/syscon-reboot.c +++ b/drivers/power/reset/syscon-reboot.c @@ -51,8 +51,11 @@ static int syscon_reboot_probe(struct platform_device *pdev) return -ENOMEM; ctx->map = syscon_regmap_lookup_by_phandle(dev->of_node, "regmap"); - if (IS_ERR(ctx->map)) - return PTR_ERR(ctx->map); + if (IS_ERR(ctx->map)) { + ctx->map = syscon_node_to_regmap(dev->parent->of_node); + if (IS_ERR(ctx->map)) + return PTR_ERR(ctx->map); + } if (of_property_read_u32(pdev->dev.of_node, "offset", &ctx->offset)) return -EINVAL;
Since normally syscon-reboot block is supposed to be a part of a system controller, lets look for the syscon regmap in a parental DT node if regmap property isn't specified. DT binding from now considers the regmap property as deprecated. Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Rob Herring <robh+dt@kernel.org> Cc: linux-mips@vger.kernel.org Cc: devicetree@vger.kernel.org --- Changelog v2: - This is a new patch created as a result of the discussion: https://lore.kernel.org/linux-pm/20200306130402.1F4F0803079F@mail.baikalelectronics.ru/ Changelog v3: - Resend --- drivers/power/reset/syscon-reboot.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)