[PATCH 08/11] cpufreq: imx: Use 'index' only to index into policy->freq_table

[Viresh Kumar]

Later patches would make changes in cpufreq core, after which
policy->freq_table may be reordered by cpufreq core and it wouldn't be
safe anymore to use 'index' for any other local arrays.

To prepare for that, use policy->freq_table[index].driver_data for other
driver specific usage of 'index'. The 'driver_data' fields are already
set properly by the driver.

Cc: Shawn Guo <shawn....@freescale.com>
Signed-off-by: Viresh Kumar <viresh.ku...@linaro.org>
---
 drivers/cpufreq/imx6q-cpufreq.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c
index 3858dc7e617b..e7da85890e8c 100644
--- a/drivers/cpufreq/imx6q-cpufreq.c
+++ b/drivers/cpufreq/imx6q-cpufreq.c
@@ -42,14 +42,21 @@ static unsigned int transition_latency;
 static u32 *imx6_soc_volt;
 static u32 soc_opp_count;
 
-static int imx6q_set_target(struct cpufreq_policy *policy, unsigned int index)
+static int imx6q_set_target(struct cpufreq_policy *policy, unsigned int pindex)
 {
        struct dev_pm_opp *opp;
        unsigned long freq_hz, volt, volt_old;
-       unsigned int old_freq, new_freq;
+       unsigned int old_freq, new_freq, index;
        int ret;
 
-       new_freq = policy->freq_table[index].frequency;
+       new_freq = policy->freq_table[pindex].frequency;
+
+       /*
+        * policy->freq_table may be sorted differently, get the index value we
+        * are concerned about.
+        */
+       index = policy->freq_table[pindex].driver_data;
+
        freq_hz = new_freq * 1000;
        old_freq = clk_get_rate(arm_clk) / 1000;
 
-- 
2.7.1.410.g6faf27b