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Message-ID: <CABb+yY2wJKBvL3eceVxkq3ZdS6V+-yqQp98YCaS_oR+3CobQ0g@mail.gmail.com>
Date:	Fri, 2 Oct 2015 10:41:16 +0530
From:	Jassi Brar <jassisinghbrar@...il.com>
To:	Lee Jones <lee.jones@...aro.org>
Cc:	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	kernel@...inux.com, Devicetree List <devicetree@...r.kernel.org>
Subject: Re: [PATCH v3 2/5] mailbox: Add support for ST's Mailbox IP

On Wed, Aug 19, 2015 at 7:52 PM, Lee Jones <lee.jones@...aro.org> wrote:

....

> +
> +#define MBOX_BASE(mdev, inst)   ((mdev)->base + (inst * 4))
>
It should be    (inst) * 4

> +/**
> + * STi Mailbox device data
> + *
> + * An IP Mailbox is currently composed of 4 instances
> + * Each instance is currently composed of 32 channels
> + * This means that we have 128 channels per Mailbox
> + * A channel an be used for TX or RX
> + *
> + * @dev:       Device to which it is attached
> + * @mbox:      Representation of a communication channel controller
> + * @base:      Base address of the register mapping region
> + * @name:      Name of the mailbox
> + * @enabled:   Local copy of enabled channels
> + * @lock:      Mutex protecting enabled status
> + */
> +struct sti_mbox_device {
> +       struct device           *dev;
> +       struct mbox_controller  *mbox;
> +       void __iomem            *base;
> +       const char              *name;
> +       u32                     enabled[STI_MBOX_INST_MAX];
> +       spinlock_t              lock;
> +       bool                    txonly;
>
txonly is never used after being initialized from DT :)   which is a
good sign. So maybe just drop it and the optional property 'tx-only'.

Cheers!
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