Thread (1 message) 1 message, 1 author, 2019-01-28

Re: [PATCH V3,0/8] make mt7623 clock of HDMI stable

From: CK Hu <hidden>
Date: 2019-01-28 09:28:08
Also in: dri-devel, linux-clk, linux-mediatek, lkml

Hi, Wangyan:

How do you prove that this series would make mt7623 HDMI clock more
stable? By experience result? I would like to prove it by the source
code.

Does 'stable' means that hardware could generate the frequency most
close to the target frequency? If it does, I think you could compare the
frequency generated by original code and applying this series for all
the usually-used frequency. I also need you to show the clock tree and
all setting of each divider so we could review that is this series good
enough. Also, describe these in cover latter.

You have mail to dri-devel [1] and linux-mediatek [2], but these patches
does not show in web site. Maybe your mail is not plain text, please fix
this and resend patches.

[1] https://lists.freedesktop.org/archives/dri-devel/
[2] http://lists.infradead.org/pipermail/linux-mediatek/

Regards,
CK

On Fri, 2019-01-25 at 12:01 +0800, Wangyan Wang wrote:
V3 adopt maintainer's suggestion.
Here is the change list between V2 & V3:
1. add "Signed-off-by: wangyan wang [off-list ref]"
in commit message

2. add modify description in patch 
"drm/mediatek: fix the rate and divder ..."
 
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 +--
 .../gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c    | 56 +++++++++++++++++--
 .../gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c    | 23 ++++++++
 8 files changed, 102 insertions(+), 52 deletions(-)


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