All of lore.kernel.org
 help / color / mirror / Atom feed
From: Daniel Baluta <daniel.baluta@oss.nxp.com>
To: shawnguo@kernel.org, o.rempel@pengutronix.de
Cc: kernel@pengutronix.de, s.hauer@pengutronix.de,
	festevam@gmail.com, linux-imx@nxp.com,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: [RESEND PATCH 0/3] Allow on demand channel request / free
Date: Mon, 14 Sep 2020 12:32:24 +0300	[thread overview]
Message-ID: <20200914093227.5094-1-daniel.baluta@oss.nxp.com> (raw)

From: Daniel Baluta <daniel.baluta@nxp.com>

Requesting an mailbox channel will call mailbox's startup
function.

startup function calls pm_runtime_get_sync which increments device usage
count and will keep the device active. Specifically, mailbox clock will
be always ON when a mailbox channel is requested.

For this, reason we introduce a way to request/free IMX DSP channels
on demand to save power when the channels are not used.

First two patches are doing code refactoring preparing the path
for 3rd patch which exports functions for on demand channel request/free

Daniel Baluta (3):
  firmware: imx: Introduce imx_dsp_setup_channels
  firmware: imx: Save channel name for further use
  firmware: imx-dsp: Export functions to request/free channels

 drivers/firmware/imx/imx-dsp.c   | 72 ++++++++++++++++++++++++--------
 include/linux/firmware/imx/dsp.h | 10 +++++
 2 files changed, 64 insertions(+), 18 deletions(-)

-- 
2.17.1


WARNING: multiple messages have this Message-ID (diff)
From: Daniel Baluta <daniel.baluta@oss.nxp.com>
To: shawnguo@kernel.org, o.rempel@pengutronix.de
Cc: s.hauer@pengutronix.de, linux-kernel@vger.kernel.org,
	linux-imx@nxp.com, kernel@pengutronix.de, festevam@gmail.com,
	linux-arm-kernel@lists.infradead.org
Subject: [RESEND PATCH 0/3] Allow on demand channel request / free
Date: Mon, 14 Sep 2020 12:32:24 +0300	[thread overview]
Message-ID: <20200914093227.5094-1-daniel.baluta@oss.nxp.com> (raw)

From: Daniel Baluta <daniel.baluta@nxp.com>

Requesting an mailbox channel will call mailbox's startup
function.

startup function calls pm_runtime_get_sync which increments device usage
count and will keep the device active. Specifically, mailbox clock will
be always ON when a mailbox channel is requested.

For this, reason we introduce a way to request/free IMX DSP channels
on demand to save power when the channels are not used.

First two patches are doing code refactoring preparing the path
for 3rd patch which exports functions for on demand channel request/free

Daniel Baluta (3):
  firmware: imx: Introduce imx_dsp_setup_channels
  firmware: imx: Save channel name for further use
  firmware: imx-dsp: Export functions to request/free channels

 drivers/firmware/imx/imx-dsp.c   | 72 ++++++++++++++++++++++++--------
 include/linux/firmware/imx/dsp.h | 10 +++++
 2 files changed, 64 insertions(+), 18 deletions(-)

-- 
2.17.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

             reply	other threads:[~2020-09-14  9:33 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-14  9:32 Daniel Baluta [this message]
2020-09-14  9:32 ` [RESEND PATCH 0/3] Allow on demand channel request / free Daniel Baluta
2020-09-14  9:32 ` [RESEND PATCH 1/3] firmware: imx: Introduce imx_dsp_setup_channels Daniel Baluta
2020-09-14  9:32   ` Daniel Baluta
2020-09-14  9:32 ` [RESEND PATCH 2/3] firmware: imx: Save channel name for further use Daniel Baluta
2020-09-14  9:32   ` Daniel Baluta
2020-09-14  9:32 ` [RESEND PATCH 3/3] firmware: imx-dsp: Export functions to request/free channels Daniel Baluta
2020-09-14  9:32   ` Daniel Baluta

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=20200914093227.5094-1-daniel.baluta@oss.nxp.com \
    --to=daniel.baluta@oss.nxp.com \
    --cc=festevam@gmail.com \
    --cc=kernel@pengutronix.de \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-imx@nxp.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=o.rempel@pengutronix.de \
    --cc=s.hauer@pengutronix.de \
    --cc=shawnguo@kernel.org \
    /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.