[PATCH v3] cpufreq: imx6q: Move speed grading check to cpufreq driver

[Viresh Kumar]

On 30-09-17, 12:16, Fabio Estevam wrote:
> From: Fabio Estevam <fabio.estevam at nxp.com>
> 
> On some i.MX6 SoCs (like i.MX6SL, i.MX6SX and i.MX6UL) that do not have
> speed grading check, opp table will not be created in platform code,
> so cpufreq driver prints the following error message:
> 
> cpu cpu0: dev_pm_opp_get_opp_count: OPP table not found (-19)
> 
> However, this is not really an error in this case because the
> imx6q-cpufreq driver first calls dev_pm_opp_get_opp_count()
> and if it fails, it means that platform code does not provide
> OPP and then dev_pm_opp_of_add_table() will be called.
> 
> In order to avoid such confusing error message, move the speed grading
> check from platform code to the imx6q-cpufreq driver.
> 
> This way the imx6q-cpufreq no longer has to check whether OPP table
> is supplied by platform code.
> 
> Tested on a i.MX6Q and i.MX6UL based boards.
> 
> Signed-off-by: Fabio Estevam <fabio.estevam at nxp.com>
> ---
> Previous discussion on this topic:
> https://patchwork.kernel.org/patch/9295059/
> 
> Changes since v2:
> - Fixed a typo in the commit log (missed SL) - Otavio
> - Remove __init anotation from imx6q_opp_check_speed_grading()
> Changes since v1:
> - Remove unneeded has_speed_grading() function.

Looks fine to me.

@Shawn: Can you please let us know if you are fine with it?

Acked-by: Viresh Kumar <viresh.kumar at linaro.org>

-- 
viresh