linux-kernel - [PATCH v2 4.19 0/7] Fix timeout clock used by hardware data timeout

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Message-ID: <1598977490-1826-1-git-send-email-skomatineni@nvidia.com>
Date:   Tue, 1 Sep 2020 09:24:43 -0700
From:   Sowjanya Komatineni <skomatineni@...dia.com>
To:     <adrian.hunter@...el.com>, <ulf.hansson@...aro.org>,
        <thierry.reding@...il.com>, <jonathanh@...dia.com>,
        <robh+dt@...nel.org>
CC:     <skomatineni@...dia.com>, <linux-tegra@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-mmc@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <stable@...r.kernel.org>
Subject: [PATCH v2 4.19 0/7] Fix timeout clock used by hardware data timeout

Tegra210/Tegra186/Tegra194 has incorrectly enabled
SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK from the beginning of their support.

Tegra210 and later SDMMC hardware default uses sdmmc_legacy_tm (TMCLK)
all the time for hardware data timeout instead of SDCLK and this TMCLK
need to be kept enabled by Tegra sdmmc driver.

This series includes manual backport patches to fix this for stable
kernel #4.19

Note:
Patch series v2 is same as v1 except updated commit message in all patches
properly for backporting.

Sowjanya Komatineni (7):
  sdhci: tegra: Remove SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK for Tegra210
  sdhci: tegra: Remove SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK for Tegra186
  dt-bindings: mmc: tegra: Add tmclk for Tegra210 and Tegra186
  arm64: tegra: Add missing timeout clock to Tegra210 SDMMC
  arm64: tegra: Add missing timeout clock to Tegra186 SDMMC nodes
  arm64: tegra: Add missing timeout clock to Tegra194 SDMMC nodes
  sdhci: tegra: Add missing TMCLK for data timeout

 .../bindings/mmc/nvidia,tegra20-sdhci.txt          | 23 +++++++++-
 arch/arm64/boot/dts/nvidia/tegra186.dtsi           | 20 +++++----
 arch/arm64/boot/dts/nvidia/tegra194.dtsi           | 15 ++++---
 arch/arm64/boot/dts/nvidia/tegra210.dtsi           | 28 ++++++------
 drivers/mmc/host/sdhci-tegra.c                     | 50 +++++++++++++++++++++-
 5 files changed, 106 insertions(+), 30 deletions(-)

-- 
2.7.4