linux-kernel - Re: [PATCH] ACPI: CPPC: Return error if

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Message-ID: <e12198ce-f2a0-1165-4eaf-3c378f5ab433@codeaurora.org>
Date:	Wed, 22 Jun 2016 11:01:42 -0600
From:	"Prakash, Prashanth" <pprakash@...eaurora.org>
To:	Hoan Tran <hotran@....com>,
	Ashwin Chaugule <ashwin.chaugule@...aro.org>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Len Brown <lenb@...nel.org>
Cc:	linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
	lho@....com, Duc Dang <dhdang@....com>
Subject: Re: [PATCH] ACPI: CPPC: Return error if _CPC is invalid on a CPU

Hi Hoan,

On 6/17/2016 4:16 PM, Hoan Tran wrote:
> Based on 8.4.7.1 section of ACPI 6.1 specification, if the platform
> supports CPPC, the _CPC object must exist under all processor objects.
> If cpc_desc_ptr pointer is invalid on any CPUs, acpi_get_psd_map()
> should return error and CPPC cpufreq driver can not be registered.
>
> Signed-off-by: Hoan Tran <hotran@....com>
This patch looks good to me. So,

Reviewed-by: Prashanth Prakash <pprakash@...eaurora.org>

Thanks,
Prashanth