diff options
| -rw-r--r-- | drivers/clk/ti/clk.c | 58 |
1 files changed, 55 insertions, 3 deletions
diff --git a/drivers/clk/ti/clk.c b/drivers/clk/ti/clk.c index e5a1c8297a1d..10a7045408ba 100644 --- a/drivers/clk/ti/clk.c +++ b/drivers/clk/ti/clk.c @@ -108,18 +108,70 @@ void __init ti_dt_clocks_register(struct ti_dt_clk oclks[]) struct device_node *node; struct clk *clk; struct of_phandle_args clkspec; + char buf[64]; + char *ptr; + char *tags[2]; + int i; + int num_args; + int ret; + static bool clkctrl_nodes_missing; + static bool has_clkctrl_data; for (c = oclks; c->node_name != NULL; c++) { - node = of_find_node_by_name(NULL, c->node_name); + strcpy(buf, c->node_name); + ptr = buf; + for (i = 0; i < 2; i++) + tags[i] = NULL; + num_args = 0; + while (*ptr) { + if (*ptr == ':') { + if (num_args >= 2) { + pr_warn("Bad number of tags on %s\n", + c->node_name); + return; + } + tags[num_args++] = ptr + 1; + *ptr = 0; + } + ptr++; + } + + if (num_args && clkctrl_nodes_missing) + continue; + + node = of_find_node_by_name(NULL, buf); + if (num_args) + node = of_find_node_by_name(node, "clk"); clkspec.np = node; + clkspec.args_count = num_args; + for (i = 0; i < num_args; i++) { + ret = kstrtoint(tags[i], i ? 10 : 16, clkspec.args + i); + if (ret) { + pr_warn("Bad tag in %s at %d: %s\n", + c->node_name, i, tags[i]); + return; + } + } clk = of_clk_get_from_provider(&clkspec); if (!IS_ERR(clk)) { c->lk.clk = clk; clkdev_add(&c->lk); } else { - pr_warn("failed to lookup clock node %s\n", - c->node_name); + if (num_args && !has_clkctrl_data) { + if (of_find_compatible_node(NULL, NULL, + "ti,clkctrl")) { + has_clkctrl_data = true; + } else { + clkctrl_nodes_missing = true; + + pr_warn("missing clkctrl nodes, please update your dts.\n"); + continue; + } + } + + pr_warn("failed to lookup clock node %s, ret=%ld\n", + c->node_name, PTR_ERR(clk)); } } } |