linux-kernel - [PATCH v4 0/2] mmc: mediatek: add support for 64-steps tuning

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Date:   Thu, 7 Dec 2023 14:35:33 +0800
From:   Axe Yang <axe.yang@...iatek.com>
To:     Chaotian Jing <chaotian.jing@...iatek.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        "Krzysztof Kozlowski" <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        "Wenbin Mei" <wenbin.mei@...iatek.com>
CC:     <linux-mmc@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <Project_Global_Chrome_Upstream_Group@...iatek.com>,
        Axe Yang <axe.yang@...iatek.com>
Subject: [PATCH v4 0/2] mmc: mediatek: add support for 64-steps tuning 

Change in v4:
- for SD/SDIO, tune 64 steps by default
- reduce some breaks to improve code readability

Change in v3:
- use BIT_ULL() instead of BIT() to avoid potential left shift operations
  that could cause exceed boundary problem on 32-bit platforms

Change in v2:
- move the change made to document to the front
- change mediatek,tune-step dts property type to enum for better scalability

Axe Yang (2):
  dt-bindings: mmc: mtk-sd: add tuning steps related property
  mmc: mediatek: extend number of tuning steps

 .../devicetree/bindings/mmc/mtk-sd.yaml       |   9 +
 drivers/mmc/host/mtk-sd.c                     | 158 ++++++++++++------
 2 files changed, 119 insertions(+), 48 deletions(-)

-- 
2.18.0