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From: Icenowy Zheng <icenowy@aosc.io>
To: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Rob Herring <robh+dt@kernel.org>, Chen-Yu Tsai <wens@csie.org>,
	dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org,
	linux-sunxi@googlegroups.com
Subject: Re: [RFC PATCH 07/11] drm: sun4i: add support for the TV encoder in H3 SoC
Date: Sat, 20 May 2017 02:08:18 +0800	[thread overview]
Message-ID: <3FCDBC05-20A1-460C-A21B-8C3E9C776768@aosc.io> (raw)
In-Reply-To: <20170519180330.7hpfkdqk3r2x3kn5@flea.home>



于 2017年5月20日 GMT+08:00 上午2:03:30, Maxime Ripard <maxime.ripard@free-electrons.com> 写到:
>On Thu, May 18, 2017 at 12:43:50AM +0800, Icenowy Zheng wrote:
>> Allwinner H3 features a TV encoder similar to the one in earlier
>SoCs,
>> but with some different points about clocks:
>> - It has a mod clock and a bus clock.
>> - The mod clock must be at a fixed rate to generate signal.
>
>Why?

It's experiment result by Jernej.

The clock rates in BSP kernel is also specially designed
(PLL_DE at 432MHz) in order to be able to feed the TVE.

>
>Maxime

  reply	other threads:[~2017-05-19 18:08 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-05-17 16:43 [RFC PATCH 00/11] Support for H3 Composite Output support Icenowy Zheng
2017-05-17 16:43 ` [RFC PATCH 01/11] dt-bindings: update the binding for Allwinner H3 TVE support Icenowy Zheng
2017-05-19 18:02   ` Maxime Ripard
2017-05-19 18:06     ` Icenowy Zheng
2017-05-20  2:01       ` [linux-sunxi] " Chen-Yu Tsai
2017-05-17 16:43 ` [RFC PATCH 02/11] drm: sun4i: add support for H3 mixers Icenowy Zheng
2017-05-19 17:47   ` Maxime Ripard
2017-05-19 17:49     ` [linux-sunxi] " Icenowy Zheng
2017-05-19 18:00       ` Jernej Škrabec
2017-05-17 16:43 ` [RFC PATCH 03/11] drm: sun4i: ignore swapped mixer<->tcon connection for DE2 Icenowy Zheng
2017-05-19 17:57   ` Maxime Ripard
2017-05-19 18:00     ` Icenowy Zheng
2017-05-24  8:14       ` Maxime Ripard
2017-06-04 14:19         ` icenowy
2017-05-17 16:43 ` [RFC PATCH 04/11] drm: sun4i: add support for H3's TCON0/1 Icenowy Zheng
2017-05-17 16:43 ` [RFC PATCH 05/11] drm: sun4i: add compatible for H3 display engine Icenowy Zheng
2017-05-17 16:43 ` [RFC PATCH 06/11] drm: sun4i: add color space correction support for DE2 mixer Icenowy Zheng
2017-05-17 20:14   ` [linux-sunxi] " Jernej Škrabec
2017-05-17 16:43 ` [RFC PATCH 07/11] drm: sun4i: add support for the TV encoder in H3 SoC Icenowy Zheng
2017-05-19 18:03   ` Maxime Ripard
2017-05-19 18:08     ` Icenowy Zheng [this message]
2017-05-19 18:23       ` [linux-sunxi] " Jernej Škrabec
2017-05-20  1:37         ` Chen-Yu Tsai
2017-05-22 17:55           ` Jernej Škrabec
2017-05-23 12:53             ` Maxime Ripard
2017-05-23 12:56               ` Icenowy Zheng
2017-05-23 13:00               ` icenowy
2017-05-24  7:30                 ` Maxime Ripard
2017-05-24  8:25                   ` Icenowy Zheng
2017-05-24 15:23                     ` Jernej Škrabec
2017-05-31 18:43                     ` Maxime Ripard
2017-06-01 14:11                       ` icenowy
2017-06-02 22:21                         ` Maxime Ripard
2017-06-04 14:29                   ` icenowy
2017-06-07  7:58                     ` Maxime Ripard
2017-05-17 16:43 ` [RFC PATCH 08/11] clk: sunxi-ng: allow CLK_DE to set CLK_PLL_DE for H3 Icenowy Zheng
2017-05-17 16:43 ` [RFC PATCH 09/11] clk: sunxi-ng: export " Icenowy Zheng
2017-05-17 16:43 ` [RFC PATCH 10/11] ARM: sun8i: h3: add display engine pipeline for TVE Icenowy Zheng
2017-05-17 20:19   ` [linux-sunxi] " Jernej Škrabec
2017-05-19 18:06   ` Maxime Ripard
2017-05-19 18:10     ` [linux-sunxi] " Icenowy Zheng
2017-05-24  8:19       ` Maxime Ripard
2017-05-24  5:24   ` [linux-sunxi] " Chen-Yu Tsai
2017-05-24  5:28     ` Icenowy Zheng
2017-05-24  5:34       ` Chen-Yu Tsai
2017-05-24  5:36         ` Icenowy Zheng
2017-05-17 16:43 ` [RFC PATCH 11/11] [DO NOT MERGE] ARM: sun8i: h3: enable TV output on Orange Pi PC Icenowy Zheng

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