Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
clk: ti: Add ti_find_clock_provider() to use clock-output-names
Let's add ti_find_clock_provider() so we can use clock-output-names
to name the clock provider instead of relying on non-standard devicetree
node names.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Link: https://lore.kernel.org/r/20220204071449.16762-5-tony@atomide.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
authored by
Tony Lindgren
and committed by
Stephen Boyd
51f661ef
274d6798
+41
-2
+41
-2
drivers/clk/ti/clk.c
+41
-2
drivers/clk/ti/clk.c
···
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return 0;
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}
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/*
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* Eventually we could standardize to using '_' for clk-*.c files to follow the
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* TRM naming and leave out the tmp name here.
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*/
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static struct device_node *ti_find_clock_provider(struct device_node *from,
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const char *name)
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{
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struct device_node *np;
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bool found = false;
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const char *n;
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char *tmp;
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tmp = kstrdup(name, GFP_KERNEL);
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if (!tmp)
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return NULL;
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strreplace(tmp, '-', '_');
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/* Node named "clock" with "clock-output-names" */
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for_each_of_allnodes_from(from, np) {
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if (of_property_read_string_index(np, "clock-output-names",
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0, &n))
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continue;
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if (!strncmp(n, tmp, strlen(tmp))) {
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found = true;
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break;
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}
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}
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of_node_put(from);
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kfree(tmp);
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if (found)
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return np;
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/* Fall back to using old node name base provider name */
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return of_find_node_by_name(from, name);
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}
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+
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/**
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* ti_dt_clocks_register - register DT alias clocks during boot
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* @oclks: list of clocks to register
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*
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* Register alias or non-standard DT clock entries during boot. By
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* default, DT clocks are found based on their node name. If any
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* default, DT clocks are found based on their clock-output-names
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* property, or the clock node name for legacy cases. If any
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* additional con-id / dev-id -> clock mapping is required, use this
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* function to list these.
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*/
···
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if (num_args && clkctrl_nodes_missing)
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continue;
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node = of_find_node_by_name(NULL, buf);
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node = ti_find_clock_provider(NULL, buf);
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if (num_args && compat_mode) {
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parent = node;
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child = of_get_child_by_name(parent, "clock");