openwrt/target/linux/sunxi/patches-3.13/121-clk-sunxi-better-factor...

48 lines
1.4 KiB
Diff

From 7d47b009bf287bf5e0817f47c40e32b7ec0e8151 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Emilio=20L=C3=B3pez?= <emilio@elopez.com.ar>
Date: Mon, 23 Dec 2013 00:32:40 -0300
Subject: [PATCH] clk: sunxi: support better factor DT nodes
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
The DT nodes should look like
abc_clk: clk@deadbeef {
...
clock-output-names = "abc";
}
But our old DT nodes look like
abc: abc@deadbeef {
...
}
So, let's support both formats, until we can transition everything
to the new, correct one.
Signed-off-by: Emilio López <emilio@elopez.com.ar>
---
drivers/clk/sunxi/clk-sunxi.c | 9 +++++++++
1 file changed, 9 insertions(+)
--- a/drivers/clk/sunxi/clk-sunxi.c
+++ b/drivers/clk/sunxi/clk-sunxi.c
@@ -441,6 +441,15 @@ static struct clk * __init sunxi_factors
(parents[i] = of_clk_get_parent_name(node, i)) != NULL)
i++;
+ /* Nodes should be providing the name via clock-output-names
+ * but originally our dts didn't, and so we used node->name.
+ * The new, better nodes look like clk@deadbeef, so we pull the
+ * name just in this case */
+ if (!strcmp("clk", clk_name)) {
+ of_property_read_string_index(node, "clock-output-names",
+ 0, &clk_name);
+ }
+
factors = kzalloc(sizeof(struct clk_factors), GFP_KERNEL);
if (!factors)
return NULL;