Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Subject: Re: [PATCH v5 0/6] ARM: davinci: ohci-da8xx: model the vbus GPIO as a
 fixed regulator
To:     Bartosz Golaszewski <brgl@bgdev.pl>,
        Kevin Hilman <khilman@kernel.org>,
        Alan Stern <stern@rowland.harvard.edu>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>
CC:     <linux-arm-kernel@lists.infradead.org>,
        <linux-kernel@vger.kernel.org>, <linux-usb@vger.kernel.org>,
        Bartosz Golaszewski <bgolaszewski@baylibre.com>
References: <20190412123640.11437-1-brgl@bgdev.pl>
From:   Sekhar Nori <nsekhar@ti.com>
Message-ID: <bb650c9b-ebf3-719b-861f-6d76c26cd1fd@ti.com>
Date:   Fri, 12 Apr 2019 19:53:50 +0530
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101
 Thunderbird/60.6.1
MIME-Version: 1.0
In-Reply-To: <20190412123640.11437-1-brgl@bgdev.pl>
Content-Type: text/plain; charset="utf-8"
Content-Language: en-US
Content-Transfer-Encoding: 7bit
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On 12/04/19 6:06 PM, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> 
> Historically the power supply management in this driver has been handled
> in two separate places in parallel. Device-tree users simply defined an
> appropriate regulator, while two boards with no DT support (da830-evm and
> omapl138-hawk) passed functions defined in their respective board files
> over platform data. These functions simply used legacy GPIO calls to
> watch the oc GPIO for interrupts and disable the vbus GPIO when the irq
> fires.
> 
> Commit d193abf1c913 ("usb: ohci-da8xx: add vbus and overcurrent gpios")
> updated these GPIO calls to the modern API and moved them inside the
> driver.
> 
> This however is not the optimal solution for the vbus GPIO as it
> duplicates code. Instead we should model the GPIO as a fixed regulator
> that can be controlled with a GPIO.
> 
> This series adds fixed regulators for all users of vbus GPIO, adds
> overcurrent protection using the existing vbus regulator in the USB
> driver and removes the vbus GPIO calls once they're no longer used.
> 
> Tested on da830-evm with the module both built-in and loadable.

Applied to v5.2/soc with Alan's ack applied on 3/6

Thanks,
Sekhar