linux-kernel - Re: [PATCH V5 0/8] make mt7623 clock of hdmi stable

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Message-ID: <1550632052.26038.4.camel@mtkswgap22>
Date:   Wed, 20 Feb 2019 11:07:32 +0800
From:   Ryder Lee <ryder.lee@...iatek.com>
To:     wangyan wang <wangyan.wang@...iatek.com>
CC:     Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, CK Hu <ck.hu@...iatek.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        "David Airlie" <airlied@...ux.ie>, Daniel Vetter <daniel@...ll.ch>,
        chunhui dai <chunhui.dai@...iatek.com>,
        Colin Ian King <colin.king@...onical.com>,
        "Sean Wang" <sean.wang@...iatek.com>, <linux-clk@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <dri-devel@...ts.freedesktop.org>, <srv_heupstream@...iatek.com>
Subject: Re: [PATCH V5 0/8] make mt7623 clock of hdmi stable

On Wed, 2019-02-20 at 10:53 +0800, wangyan wang wrote:
> From: Wangyan Wang <wangyan.wang@...iatek.com>
> 
> V4 adopt maintainer's suggestion.
> Here is the change list between V4 & V5
> 1. add Reviewed-by:CK Hu <ck.hu@...iatek.com>
> in " drm/mediatek: fix the rate ..." commit message.
> 
> 2. describe the reason why mt7623 clock of hdmi 
> is more stable than before.
> the tvdpll should be stable in hdmi normal setting
> to guarantee clock of hdmi stable, but the tvdpll 
> may be changed in original code ,the patch is to
> deal with the problem, you can find more descriptions
> in patch "drm/mediatek:using different flags of clk ...".
> 
> 
> chunhui dai (8):
>   drm/mediatek: recalculate hdmi phy clock of MT2701 by querying
>     hardware
>   drm/mediatek: move the setting of fixed divider
>   drm/mediatek: using different flags of clk for HDMI phy
>   drm/mediatek: fix the rate and divder of hdmi phy for MT2701
>   clk: mediatek: add MUX_GATE_FLAGS_2
>   clk: mediatek: using CLK_MUX_ROUND_CLOSEST for the clock of dpi1_sel
>   drm/mediatek: using new factor for tvdpll in MT2701
>   drm/mediatek: fix the rate of parent for hdmi phy in MT2701
> 
>  drivers/clk/mediatek/clk-mt2701.c              |  4 +-
>  drivers/clk/mediatek/clk-mtk.c                 |  2 +-
>  drivers/clk/mediatek/clk-mtk.h                 | 20 ++++++---
>  drivers/gpu/drm/mediatek/mtk_dpi.c             |  8 ++--
>  drivers/gpu/drm/mediatek/mtk_hdmi_phy.c        | 34 ++++------------
>  drivers/gpu/drm/mediatek/mtk_hdmi_phy.h        |  7 +---
>  drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c | 56 +++++++++++++++++++++++---
>  drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c | 23 +++++++++++
>  8 files changed, 102 insertions(+), 52 deletions(-)
> 

I could see the Debian Gnome desktop on my MT7623 R2.

Tested-by: Ryder Lee <ryder.lee@...iatek.com>