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openwrt/target/linux/ipq806x/patches/0108-clk-qcom-Return-error-...

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