target/linux/sunxi/patches-3.13/121-clk-sunxi-better-factor-dt-nodes.patch

   1 From 7d47b009bf287bf5e0817f47c40e32b7ec0e8151 Mon Sep 17 00:00:00 2001
   2 From: =?UTF-8?q?Emilio=20L=C3=B3pez?= <emilio@elopez.com.ar>
   3 Date: Mon, 23 Dec 2013 00:32:40 -0300
   4 Subject: [PATCH] clk: sunxi: support better factor DT nodes
   5 MIME-Version: 1.0
   6 Content-Type: text/plain; charset=UTF-8
   7 Content-Transfer-Encoding: 8bit
   8
   9 The DT nodes should look like
  10
  11     abc_clk: clk@deadbeef {
  12         ...
  13         clock-output-names = "abc";
  14     }
  15
  16 But our old DT nodes look like
  17
  18     abc: abc@deadbeef {
  19         ...
  20     }
  21
  22 So, let's support both formats, until we can transition everything
  23 to the new, correct one.
  24
  25 Signed-off-by: Emilio López <emilio@elopez.com.ar>
  26 ---
  27  drivers/clk/sunxi/clk-sunxi.c | 9 +++++++++
  28  1 file changed, 9 insertions(+)
  29
  30 --- a/drivers/clk/sunxi/clk-sunxi.c
  31 +++ b/drivers/clk/sunxi/clk-sunxi.c
  32 @@ -441,6 +441,15 @@ static struct clk * __init sunxi_factors
  33                (parents[i] = of_clk_get_parent_name(node, i)) != NULL)
  34                 i++;
  35
  36 +       /* Nodes should be providing the name via clock-output-names
  37 +        * but originally our dts didn't, and so we used node->name.
  38 +        * The new, better nodes look like clk@deadbeef, so we pull the
  39 +        * name just in this case */
  40 +       if (!strcmp("clk", clk_name)) {
  41 +               of_property_read_string_index(node, "clock-output-names",
  42 +                                             0, &clk_name);
  43 +       }
  44 +
  45         factors = kzalloc(sizeof(struct clk_factors), GFP_KERNEL);
  46         if (!factors)
  47                 return NULL;