linux-kernel - Re: [RFC PATCH v1 01/13] regmap: regmap-irq: Add main status register support

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Message-ID: <20190123155531.GC7503@sirena.org.uk>
Date:   Wed, 23 Jan 2019 15:55:31 +0000
From:   Mark Brown <broonie@...nel.org>
To:     Matti Vaittinen <matti.vaittinen@...rohmeurope.com>
Cc:     mazziesaccount@...il.com, lee.jones@...aro.org, robh+dt@...nel.org,
        mark.rutland@....com, lgirdwood@...il.com,
        gregkh@...uxfoundation.org, rafael@...nel.org,
        mturquette@...libre.com, sboyd@...nel.org,
        linus.walleij@...aro.org, bgolaszewski@...libre.com,
        sre@...nel.org, a.zummo@...ertech.it,
        alexandre.belloni@...tlin.com, wim@...ux-watchdog.org,
        linux@...ck-us.net, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-gpio@...r.kernel.org, linux-pm@...r.kernel.org,
        linux-rtc@...r.kernel.org, linux-watchdog@...r.kernel.org,
        mikko.mutanen@...rohmeurope.com, heikki.haikola@...rohmeurope.com
Subject: Re: [RFC PATCH v1 01/13] regmap: regmap-irq: Add main status
 register support

On Tue, Jan 22, 2019 at 11:42:24AM +0200, Matti Vaittinen wrote:

> There is bunch of devices with multiple logical blocks which
> can generate interrupts. It's not a rare case that the interrupt
> reason registers are arranged so that there is own status/ack/mask
> register for each logical block. In some devices there is also a
> 'main interrupt register(s)' which can indicate what sub blocks
> have interrupts pending.

The following changes since commit bfeffd155283772bbe78c6a05dec7c0128ee500c:

  Linux 5.0-rc1 (2019-01-06 17:08:20 -0800)

are available in the Git repository at:

  https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap.git tags/regmap-irq-main-status

for you to fetch changes up to a2d21848d9211dad5e786aa7368709ca8938834e:

  regmap: regmap-irq: Add main status register support (2019-01-23 15:52:15 +0000)

----------------------------------------------------------------
regmap: Main status register support

Add support for a main status register, used by chips on slower buses
with many interrupt sources to improve performance in interrupt
handling.

----------------------------------------------------------------
Matti Vaittinen (1):
      regmap: regmap-irq: Add main status register support

 drivers/base/regmap/regmap-irq.c | 99 ++++++++++++++++++++++++++++++++++++++--
 include/linux/regmap.h           | 31 +++++++++++++
 2 files changed, 126 insertions(+), 4 deletions(-)

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