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clk: ti: Optionally parse IO address from parent clock node

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If no reg property is specified for a TI clock, let's try to use the
parent clock node IO address. This way we can avoid duplicate devicetree
reg properties that cause warnings for unique_unit_address.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Link: https://lore.kernel.org/r/20220204071449.16762-4-tony@atomide.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This commit is contained in:
Tony Lindgren 2022-02-04 09:14:44 +02:00 committed by Stephen Boyd
parent 80864594ff
commit 274d679810
1 changed files with 8 additions and 2 deletions
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10
drivers/clk/ti/clk.c
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@ -274,6 +274,8 @@ int ti_clk_get_reg_addr(struct device_node *node, int index,
for (i = 0; i < CLK_MAX_MEMMAPS; i++) {
if (clocks_node_ptr[i] == node->parent)
break;
if (clocks_node_ptr[i] == node->parent->parent)
break;
}
if (i == CLK_MAX_MEMMAPS) {
@ -284,8 +286,12 @@ int ti_clk_get_reg_addr(struct device_node *node, int index,
reg->index = i;
if (of_property_read_u32_index(node, "reg", index, &val)) {
pr_err("%pOFn must have reg[%d]!\n", node, index);
return -EINVAL;
if (of_property_read_u32_index(node->parent, "reg",
index, &val)) {
pr_err("%pOFn or parent must have reg[%d]!\n",
node, index);
return -EINVAL;
}
}
reg->offset = val;