Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
MIME-Version: 1.0
References: <20220815120834.1562544-1-lewis.hanly@microchip.com>
 <20220815120834.1562544-2-lewis.hanly@microchip.com> <CACRpkdbk_ZqYnDzXgmbnAxhs+mEe9f2X-y++9HDS-O=UO_tUmg@mail.gmail.com>
 <31d2bd0514652685cb87a7c9d17529b9064de2bf.camel@microchip.com>
In-Reply-To: <31d2bd0514652685cb87a7c9d17529b9064de2bf.camel@microchip.com>
From:   Linus Walleij <linus.walleij@linaro.org>
Date:   Wed, 31 Aug 2022 15:19:38 +0200
Message-ID: <CACRpkdZqvEvqjzTN3oQqrV_CNK+D2+c4FjLiC1_ZoKQ-rMMe5A@mail.gmail.com>
Subject: Re: [PATCH v6 1/1] gpio: mpfs: add polarfire soc gpio support
To:     Lewis.Hanly@microchip.com
Cc:     linux-riscv@lists.infradead.org, Conor.Dooley@microchip.com,
        brgl@bgdev.pl, linux-gpio@vger.kernel.org,
        linux-kernel@vger.kernel.org, palmer@dabbelt.com, maz@kernel.org,
        Daire.McNamara@microchip.com
Content-Type: text/plain; charset="UTF-8"
Precedence: bulk

On Tue, Aug 30, 2022 at 6:51 AM <Lewis.Hanly@microchip.com> wrote:

> We had looked at the bpgpio_init, our controller is not fully memory
> mapped to support the bgpio_init() and get all routines for free.
> While we have in/out and intr (interrupt state) 32-bit registers, we
> would not get as much free as other generic memory mapped controllers.

You're not really saying what the problem is?

Is it that some registers are not one-bit-indexed from 0 per GPIO?

Yours,
Linus Walleij