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From: Sekhar Nori <nsekhar@ti.com>
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>
Subject: Re: [PATCH v4 0/6] ARM: davinci: ohci-da8xx: model the vbus GPIO as a fixed regulator
Date: Fri, 12 Apr 2019 16:10:25 +0530	[thread overview]
Message-ID: <8b0f357c-5ec9-baab-761f-226bfb704564@ti.com> (raw)
In-Reply-To: <20190411093024.23555-1-brgl@bgdev.pl>

On 11/04/19 3:00 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.

Looks good to me except some minor issues pointed out. If you can spin
the next version quickly, I would try merging for v5.2

Thanks,
Sekhar

      parent reply	other threads:[~2019-04-12 10:40 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-11  9:30 Bartosz Golaszewski
2019-04-11  9:30 ` [PATCH v4 1/6] ARM: davinci: add missing sentinels to GPIO lookup tables Bartosz Golaszewski
2019-04-11  9:30 ` [PATCH v4 2/6] usb: ohci-da8xx: let the regulator framework keep track of use count Bartosz Golaszewski
2019-04-11  9:30 ` [PATCH v4 3/6] usb: ohci-da8xx: disable the regulator if the overcurrent irq fired Bartosz Golaszewski
2019-04-12 10:39   ` Sekhar Nori
2019-04-12 12:12     ` Bartosz Golaszewski
2019-04-11  9:30 ` [PATCH v4 4/6] ARM: davinci: omapl138-hawk: add a fixed regulator for ohci-da8xx Bartosz Golaszewski
2019-04-11  9:30 ` [PATCH v4 5/6] ARM: davinci: da830-evm: " Bartosz Golaszewski
2019-04-11  9:30 ` [PATCH v4 6/6] usb: ohci-da8xx: drop the vbus GPIO Bartosz Golaszewski
2019-04-12 10:32   ` Sekhar Nori
2019-04-12 10:40 ` Sekhar Nori [this message]

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