Hi,
On 03/07/2013 06:14 PM, Viresh Kumar wrote:
> big LITTLE is ARM's new Architecture focussing power/performance needs of
> modern
> world. More information about big LITTLE can be found here:
>
> http://www.arm.com/products/processors/technologies/biglittleprocessing.php
> http://lwn.net/Articles/481055/
>
> In order to keep cpufreq support for all big LITTLE platforms simple/generic,
> this patch tries to add a generic cpufreq driver layer for all big LITTLE
> platforms.
>
> The driver is divided into two parts:
> - Core driver: Generic and shared across all big LITTLE SoC's
> - Glue drivers: Per platform drivers providing ops to the core driver
>
> This patch adds in a generic glue driver which would extract information from
> Device Tree.
>
> Future SoC's can either reuse the DT glue or write their own depending on the
> need.
>
> Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanage...@arm.com>
> Signed-off-by: Viresh Kumar <viresh.ku...@linaro.org>
[...]
> +void bL_cpufreq_unregister(struct cpufreq_arm_bL_ops *ops)
> +{
> + if (arm_bL_ops != ops) {
> + pr_info("%s: Registered with: %s, can't unregister, exiting\n",
> + __func__, arm_bL_ops->name);
> + }
The code is not doing what the info message says.
> +
> + cpufreq_unregister_driver(&bL_cpufreq_driver);
> + pr_info("%s: Un-registered platform driver: %s\n", __func__,
> + arm_bL_ops->name);
> + arm_bL_ops = NULL;
> +}
> +EXPORT_SYMBOL_GPL(bL_cpufreq_unregister);
--
Francesco
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