From: eric.nelson@boundarydevices.com (Eric Nelson)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH V1 07/11] ARM: dts: imx6qdl-sabrelite: add pwms for backlights
Date: Fri, 13 Dec 2013 07:09:54 -0700 [thread overview]
Message-ID: <52AB1532.7070203@boundarydevices.com> (raw)
In-Reply-To: <201312131253.32773.marex@denx.de>
Hi Marek,
On 12/13/2013 04:53 AM, Marek Vasut wrote:
> On Friday, December 13, 2013 at 02:49:11 AM, Troy Kisky wrote:
>> add pwm1 for lcd backlight
>> add pwm4 for lvds backlight
>> add pwm3 for ov5640 mipi clock
>
> The camera needs a PWM ? I am a little surprised by such a design, but I might
> just be lacking knowledge.
>
The PWM is used to provide a clock to the camera (with a constant
50% duty cycle).
We do the same with our parallel camera interface, avoiding
external oscillators.
Regards,
Eric
next prev parent reply other threads:[~2013-12-13 14:09 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-13 1:49 [PATCH V1 00/11] Update Sabre Lite Troy Kisky
2013-12-13 1:49 ` [PATCH V1 01/11] ARM: dts: imx: sabrelite: add Dual Lite/Solo support Troy Kisky
2013-12-13 11:46 ` Marek Vasut
2013-12-13 18:51 ` Troy Kisky
2013-12-13 21:51 ` Marek Vasut
2013-12-13 1:49 ` [PATCH V1 02/11] ARM: dts: imx6qdl-sabrelite: Add uart1 support Troy Kisky
2013-12-13 11:46 ` Marek Vasut
2013-12-13 1:49 ` [PATCH V1 03/11] ARM: dts: imx6qdl-sabrelite: remove usdhc4 wp-gpio Troy Kisky
2013-12-13 11:46 ` Marek Vasut
2013-12-14 13:46 ` Shawn Guo
2013-12-16 19:42 ` Troy Kisky
2013-12-16 19:54 ` Marek Vasut
2013-12-16 23:59 ` Troy Kisky
2013-12-13 1:49 ` [PATCH V1 04/11] ARM: dts: imx6qdl-sabrelite: add comments for pinctrl_hog Troy Kisky
2013-12-13 11:47 ` Marek Vasut
2013-12-14 13:54 ` Shawn Guo
2013-12-13 1:49 ` [PATCH V1 05/11] ARM: dts: imx6qdl-sabrelite: specify pad settings Troy Kisky
2013-12-13 11:48 ` Marek Vasut
2013-12-13 18:42 ` Troy Kisky
2013-12-13 21:50 ` Marek Vasut
2013-12-14 1:44 ` Troy Kisky
2013-12-14 5:00 ` Marek Vasut
2013-12-14 13:29 ` Shawn Guo
2013-12-14 14:16 ` Marek Vasut
2013-12-13 1:49 ` [PATCH V1 06/11] ARM: dts: imx6qdl-sabrelite: add gpio-keys Troy Kisky
2013-12-13 11:51 ` Marek Vasut
2013-12-13 18:45 ` Troy Kisky
2013-12-13 21:50 ` Marek Vasut
2013-12-13 21:55 ` Eric Nelson
2013-12-14 5:00 ` Marek Vasut
2013-12-14 13:57 ` Shawn Guo
2013-12-13 1:49 ` [PATCH V1 07/11] ARM: dts: imx6qdl-sabrelite: add pwms for backlights Troy Kisky
2013-12-13 11:53 ` Marek Vasut
2013-12-13 14:09 ` Eric Nelson [this message]
2013-12-13 1:49 ` [PATCH V1 08/11] ARM: dts: imx6qdl-sabrelite: add skews for Micrel phy Troy Kisky
2013-12-13 11:53 ` Marek Vasut
2013-12-13 1:49 ` [PATCH V1 09/11] ARM: dts: imx6qdl-sabrelite: fix ENET group Troy Kisky
2013-12-13 11:54 ` Marek Vasut
2013-12-13 1:49 ` [PATCH V1 10/11] ARM: dts: imx6qdl-sabrelite: Add over-current pin to usbotg Troy Kisky
2013-12-13 11:54 ` Marek Vasut
2013-12-13 1:49 ` [PATCH V1 11/11] ARM: dts: imx: add nitrogen6x board Troy Kisky
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