diff options
| author | Jiaxun Yang <jiaxun.yang@flygoat.com> | 2024-05-17 19:14:57 +0100 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2025-04-22 15:08:47 -0600 |
| commit | 964bb01f34741c9866917337afecab98262be562 (patch) | |
| tree | 98ff8adc9e62c6722e73ab53f6bc977cfce7d6c4 | |
| parent | a6661e260c5f98b578a636a5e265690435167981 (diff) | |
clk: boston: Allow to get regmap from parent device
In upstream devicetree, clk_boston is a child of syscon node
and there is no "regmap" property for clk_boston node.
Try to check parent device first to look for syscon.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
| -rw-r--r-- | drivers/clk/clk_boston.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/drivers/clk/clk_boston.c b/drivers/clk/clk_boston.c index 030ff7cc58e..71e030f463e 100644 --- a/drivers/clk/clk_boston.c +++ b/drivers/clk/clk_boston.c @@ -58,17 +58,21 @@ const struct clk_ops clk_boston_ops = { .get_rate = clk_boston_get_rate, }; -static int clk_boston_of_to_plat(struct udevice *dev) +static int clk_boston_probe(struct udevice *dev) { struct clk_boston *state = dev_get_plat(dev); struct udevice *syscon; int err; - err = uclass_get_device_by_phandle(UCLASS_SYSCON, dev, - "regmap", &syscon); - if (err) { - pr_err("unable to find syscon device\n"); - return err; + if (dev->parent && device_get_uclass_id(dev->parent) == UCLASS_SYSCON) { + syscon = dev->parent; + } else { + err = uclass_get_device_by_phandle(UCLASS_SYSCON, dev, + "regmap", &syscon); + if (err) { + pr_err("unable to find syscon device\n"); + return err; + } } state->regmap = syscon_get_regmap(syscon); @@ -91,7 +95,8 @@ U_BOOT_DRIVER(clk_boston) = { .name = "boston_clock", .id = UCLASS_CLK, .of_match = clk_boston_match, - .of_to_plat = clk_boston_of_to_plat, + .probe = clk_boston_probe, .plat_auto = sizeof(struct clk_boston), .ops = &clk_boston_ops, + .flags = DM_FLAG_PRE_RELOC, }; |