There are some syscon devices that support both clocks and resets, but for now only their reset functionality is required. Make defining clocks optional for a SpacemiT CCU, though at least one clock or at least one reset controller must be defined. Signed-off-by: Alex Elder <elder@xxxxxxxxxxxx> --- drivers/clk/spacemit/ccu-k1.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/clk/spacemit/ccu-k1.c b/drivers/clk/spacemit/ccu-k1.c index be8abd27753cb..17e321c25959a 100644 --- a/drivers/clk/spacemit/ccu-k1.c +++ b/drivers/clk/spacemit/ccu-k1.c @@ -1830,6 +1830,10 @@ static int k1_ccu_register(struct device *dev, struct regmap *regmap, const struct spacemit_ccu_clk *clk; int i, ret, max_id = 0; + /* Clocks are optional */ + if (!clks) + return 0; + for (clk = clks; clk->hw; clk++) max_id = max(max_id, clk->id); @@ -1903,7 +1907,7 @@ static int k1_ccu_probe(struct platform_device *pdev) int ret; data = of_device_get_match_data(dev); - if (!data) + if (!data || !(data->clk || data->rst_data)) return -EINVAL; base_regmap = device_node_to_regmap(dev->of_node); -- 2.43.0
