target/linux/ipq806x/patches/0108-clk-qcom-Return-error-pointers-for-unimplemented-clo.patch

   1 From 77b7f864b03d6b49c143a9c8c19432feef3032b5 Mon Sep 17 00:00:00 2001
   2 From: Stephen Boyd <sboyd@codeaurora.org>
   3 Date: Fri, 16 May 2014 16:07:14 -0700
   4 Subject: [PATCH 108/182] clk: qcom: Return error pointers for unimplemented
   5  clocks
   6
   7 Not all clocks are implemented but client drivers can still
   8 request them. Currently we will return a NULL pointer to them if
   9 the clock isn't implemented in software but NULL pointers are
  10 valid clock pointers. Return an error pointer so that driver's
  11 don't proceed without a clock they may actually need.
  12
  13 Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
  14 Signed-off-by: Mike Turquette <mturquette@linaro.org>
  15 ---
  16  drivers/clk/qcom/common.c |    4 +++-
  17  1 file changed, 3 insertions(+), 1 deletion(-)
  18
  19 --- a/drivers/clk/qcom/common.c
  20 +++ b/drivers/clk/qcom/common.c
  21 @@ -62,8 +62,10 @@ int qcom_cc_probe(struct platform_device
  22         data->clk_num = num_clks;
  23
  24         for (i = 0; i < num_clks; i++) {
  25 -               if (!rclks[i])
  26 +               if (!rclks[i]) {
  27 +                       clks[i] = ERR_PTR(-ENOENT);
  28                         continue;
  29 +               }
  30                 clk = devm_clk_register_regmap(dev, rclks[i]);
  31                 if (IS_ERR(clk))
  32                         return PTR_ERR(clk);