linux-kernel - Re: [PATCH v2 0/2] ARM: OMAP2+ McASP(3) support for DRA7xx family

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Date:	Tue, 27 Oct 2015 10:37:37 +0200
From:	Peter Ujfalusi <peter.ujfalusi@...com>
To:	<tony@...mide.com>, <paul@...an.com>
CC:	<t-kristo@...com>, <linux-omap@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 0/2] ARM: OMAP2+ McASP(3) support for DRA7xx family

Hi Paul,

On 10/14/2015 12:23 PM, Peter Ujfalusi wrote:
> Hi Paul,
> 
> This is the followup series for the hwmod changes needed to get audio working
> on DRA7xx family based boards.
> The DTS patches has been applied by Tony from the original series:
> http://www.spinics.net/lists/linux-omap/msg121473.html
> 
> I have addressed your comments in the hwmod data and did some research also
> regarding to the use of ahclkx as fclk in the original submission.
> It turned out that McASP _needs_ all clocks to be enabled (fclk, iclk and
> ahclkx/r) to be able to access registers. The original patch where we handled
> the ahclkx as fclk worked, because the fclk clock got enabled in the HW w/o
> any SW interaction.
> All in all, the McASP found in DRA7 needs all clocks to be enabled.
> To satisfy this I have introduced a new flag to hwmod, which means that the
> listed optional clocks need to be handled alongside with the fclk clock.

Can you, please look at this patch?

Thank you,
Péter

> 
> Regards,
> Peter
> ---
> Peter Ujfalusi (2):
>   ARM: OMAP2+: hwmod: Add hwmod flag for HWMOD_OPT_CLKS_NEEDED
>   ARM: OMAP: DRA7: hwmod: Add data for McASP3
> 
>  arch/arm/mach-omap2/omap_hwmod.c          | 66 +++++++++++++++++--------------
>  arch/arm/mach-omap2/omap_hwmod.h          |  3 ++
>  arch/arm/mach-omap2/omap_hwmod_7xx_data.c | 56 ++++++++++++++++++++++++++
>  3 files changed, 95 insertions(+), 30 deletions(-)
> 

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