linux-kernel - [PATCH V4 0/7] Tegra XUSB charger detect support

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Message-ID: <1593166742-23592-1-git-send-email-nkristam@nvidia.com>
Date:   Fri, 26 Jun 2020 15:48:55 +0530
From:   Nagarjuna Kristam <nkristam@...dia.com>
To:     <thierry.reding@...il.com>, <jonathanh@...dia.com>,
        <mark.rutland@....com>, <robh+dt@...nel.org>, <kishon@...com>
CC:     <devicetree@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        Nagarjuna Kristam <nkristam@...dia.com>
Subject: [PATCH V4 0/7] Tegra XUSB charger detect support

This patch series adds charger detect support on XUSB hardware used in
Tegra210 and Tegra186 SoCs.

This patchset is composed with :
 - dt bindings of XUSB Pad Controller
 - Tegra XUSB device mode driver to add vbus_draw support 
 - Tegra PHY driver for charger detect support

Tests done:
 - Connect USB cable from ubuntu host to micro-B port of DUT to detect
   SDP_TYPE charger
 - Connect USB cable from external powered USB hub(which inturn connects
   to ubuntu host) to micro-B port of DUT to detect CDP_TYPE charger.
 - Connect USB cable from USB charger to micro-B port of DUT to detect
   DCP_TYPE charger.
DUT: Jetson-tx1, Jetson tx2.

V4:
 - Added ACKed-by details for PHY driver.
 - Used BIT macro instead of (1 << index) usage as suggested by Chunfeng Yun.
V3:
 - Added ACKed-by details for PHY driver and DT changes.
 - Functions and its arguments are aligned.
 - Tabs are used for alignment of MACRO's
 - For vbus_draw USDC callback, usb_phy set_power error is propogated.
 - Fixed various comments given by thierry.
V2:
 - Added ACKed-by details for DT patches.
 - All patches rebased.

Nagarjuna Kristam (7):
  dt-bindings: phy: tegra-xusb: Add charger-detect property
  phy: tegra: xusb: Add support for UTMI pad power control
  phy: tegra: xusb: Add USB2 pad power control support for Tegra210
  phy: tegra: xusb: Add soc ops API to enable UTMI PAD protection
  phy: tegra: xusb: Add support for charger detect
  phy: tegra: xusb: Enable charger detect for Tegra186
  phy: tegra: xusb: Enable charger detect for Tegra210

 .../bindings/phy/nvidia,tegra124-xusb-padctl.txt   |   4 +
 drivers/phy/tegra/Makefile                         |   2 +-
 drivers/phy/tegra/cd.c                             | 283 +++++++++++++++++++++
 drivers/phy/tegra/xusb-tegra186.c                  |  92 +++++--
 drivers/phy/tegra/xusb-tegra210.c                  | 223 +++++++++++-----
 drivers/phy/tegra/xusb.c                           |  80 ++++++
 drivers/phy/tegra/xusb.h                           |  22 ++
 7 files changed, 621 insertions(+), 85 deletions(-)
 create mode 100644 drivers/phy/tegra/cd.c

-- 
2.7.4