All of lore.kernel.org
 help / color / mirror / Atom feed
From: Tomer Maimon <tmaimon77@gmail.com>
To: p.zabel@pengutronix.de, robh+dt@kernel.org, mark.rutland@arm.com,
	yuenn@google.com, venture@google.com, benjaminfair@google.com,
	avifishman70@gmail.com, joel@jms.id.au
Cc: openbmc@lists.ozlabs.org, linux-kernel@vger.kernel.org,
	devicetree@vger.kernel.org, Tomer Maimon <tmaimon77@gmail.com>
Subject: [PATCH v2 0/3] reset: npcm: add NPCM reset driver support
Date: Mon, 28 Oct 2019 17:54:00 +0200	[thread overview]
Message-ID: <20191028155403.134126-1-tmaimon77@gmail.com> (raw)

This patch set adds reset controller support 
for the Nuvoton NPCM Baseboard Management Controller (BMC).

Apart of controlling all NPCM BMC reset module lines the NPCM reset driver
support NPCM BMC software reset to restarting the NPCM BMC.

Supporting NPCM USB-PHY reset as follow:

NPCM BMC USB-PHY connected to two modules USB device (UDC) and USB host.

If we will restart the USB-PHY at the UDC probe and later the 
USB host probe will restart USB-PHY again it will disable the UDC
and vice versa.

The solution is to reset the USB-PHY at the reset probe stage before 
the UDC and the USB host are initializing.

NPCM reset driver tested on NPCM750 evaluation board.

Addressed comments from:.
 - kbuild test robot : https://lkml.org/lkml/2019/10/27/768 
  
Changes since version 1:
 - Check if gcr_regmap parameter initialized before using it.

Tomer Maimon (3):
  dt-binding: reset: add NPCM reset controller documentation
  dt-bindings: reset: Add binding constants for NPCM7xx reset controller
  reset: npcm: add NPCM reset controller driver

 .../bindings/reset/nuvoton,npcm-reset.txt     |  35 +++
 drivers/reset/Kconfig                         |   7 +
 drivers/reset/Makefile                        |   1 +
 drivers/reset/reset-npcm.c                    | 275 ++++++++++++++++++
 .../dt-bindings/reset/nuvoton,npcm7xx-reset.h |  82 ++++++
 5 files changed, 400 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/reset/nuvoton,npcm-reset.txt
 create mode 100644 drivers/reset/reset-npcm.c
 create mode 100644 include/dt-bindings/reset/nuvoton,npcm7xx-reset.h

-- 
2.22.0


             reply	other threads:[~2019-10-28 15:54 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-28 15:54 Tomer Maimon [this message]
2019-10-28 15:54 ` [PATCH v2 1/3] dt-binding: reset: add NPCM reset controller documentation Tomer Maimon
2019-10-29 15:14   ` Philipp Zabel
2019-10-29 15:14     ` Philipp Zabel
2019-10-31 14:18     ` Tomer Maimon
2019-10-28 15:54 ` [PATCH v2 2/3] dt-bindings: reset: Add binding constants for NPCM7xx reset controller Tomer Maimon
2019-10-29 15:15   ` Philipp Zabel
2019-10-29 15:15     ` Philipp Zabel
2019-10-28 15:54 ` [PATCH v2 3/3] reset: npcm: add NPCM reset controller driver Tomer Maimon
2019-10-29 15:34   ` Philipp Zabel
2019-10-29 15:34     ` Philipp Zabel
2019-10-31 14:14     ` Tomer Maimon
2019-10-30  5:11   ` kbuild test robot
2019-10-30  5:11     ` kbuild test robot

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20191028155403.134126-1-tmaimon77@gmail.com \
    --to=tmaimon77@gmail.com \
    --cc=avifishman70@gmail.com \
    --cc=benjaminfair@google.com \
    --cc=devicetree@vger.kernel.org \
    --cc=joel@jms.id.au \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mark.rutland@arm.com \
    --cc=openbmc@lists.ozlabs.org \
    --cc=p.zabel@pengutronix.de \
    --cc=robh+dt@kernel.org \
    --cc=venture@google.com \
    --cc=yuenn@google.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.