Re: [RFC PATCH] PM / OPP: move cpufreq specific OPP functions out of generic OPP library

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On 2 May 2014 06:36, Nishanth Menon <nm@xxxxxx> wrote:
> diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig
> index 1fbe11f..281ccfb 100644
> --- a/drivers/cpufreq/Kconfig
> +++ b/drivers/cpufreq/Kconfig
> @@ -17,6 +17,11 @@ config CPU_FREQ
>
>  if CPU_FREQ
>
> +config CPU_FREQ_PM_OPP
> +       bool
> +       depends on PM_OPP
> +       default y
> +

Don't need this

>  config CPU_FREQ_GOV_COMMON
>         bool
>
> diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile
> index 0dbb963..16eea68 100644
> --- a/drivers/cpufreq/Makefile
> +++ b/drivers/cpufreq/Makefile
> @@ -1,5 +1,7 @@
>  # CPUfreq core
>  obj-$(CONFIG_CPU_FREQ)                 += cpufreq.o freq_table.o
> +obj-$(CONFIG_CPU_FREQ_PM_OPP)          += cpufreq_opp.o

Just use: obj-$(CONFIG_PM_OPP)

> +
>  # CPUfreq stats
>  obj-$(CONFIG_CPU_FREQ_STAT)             += cpufreq_stats.o
>

> diff --git a/drivers/cpufreq/cpufreq_opp.c b/drivers/cpufreq/cpufreq_opp.c
> new file mode 100644
> index 0000000..2602ff8
> --- /dev/null
> +++ b/drivers/cpufreq/cpufreq_opp.c
> @@ -0,0 +1,102 @@
> +/*
> + * Generic OPP Interface for CPUFREQ drivers
> + *
> + * Copyright (C) 2009-2014 Texas Instruments Incorporated.
> + *     Nishanth Menon
> + *     Romit Dasgupta
> + *     Kevin Hilman
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + */

I hope you have just copy pasted routines to this file, and haven't done
even the most minor modification in those, as its hard to review it.

> +#include <linux/slab.h>

Sure? That's it, nothing else required to compile this file independently?
As a rule include all the files directly which might be required for compilation
of this file and don't expect them to be included by some other header
files indirectly.

> diff --git a/drivers/cpufreq/cpufreq_opp.h b/drivers/cpufreq/cpufreq_opp.h

Two problems, driver may lie in arch/ as well, though we don't recommend
them, secondly move these in cpufreq.h, don't need a header here for sure.
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