linux-kernel - Re: [PATCH 25/35] ARM: davinci: cp-intc: use the new-style config structure

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Message-ID: <55b5797c-ee0b-c2d8-9eb9-0d681da08018@lechnology.com>
Date:   Mon, 4 Feb 2019 18:29:55 -0600
From:   David Lechner <david@...hnology.com>
To:     Bartosz Golaszewski <brgl@...ev.pl>, Sekhar Nori <nsekhar@...com>,
        Kevin Hilman <khilman@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Jason Cooper <jason@...edaemon.net>,
        Marc Zyngier <marc.zyngier@....com>
Cc:     Bartosz Golaszewski <bgolaszewski@...libre.com>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 25/35] ARM: davinci: cp-intc: use the new-style config
 structure

On 1/31/19 7:39 AM, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bgolaszewski@...libre.com>
> 
> Modify the cp-intc driver to take all its configuration from the new
> config structure. Stop referencing davinci_soc_info in any way.
> Move the declaration for davinci_cp_intc_init() to
> irq-davinci-cp-intc.h and make it take the new config structure as
> parameter. Convert all users to the new version.
> 
> Also: since the two da8xx SoCs default all irq priorities to 7, just
> drop the priority configuration at all and hardcode the channels to 7.

As mentioned in a comment on a different patch, this isn't strictly
true (although in practice, it probably is).

This patch deletes a code path with the comment "Default everything
to channel 15 if priority not specified.", so it is possible (although
unlikely) that this patch could change a priority of some IRQ that is
being used.

> 
> It will simplify the driver code and make our lives easier when it
> comes to device-tree support.
> 
> Signed-off-by: Bartosz Golaszewski <bgolaszewski@...libre.com>
> ---