From: Gregor Herburger <gregor.herburger@ew.tq-group.com>
To: Marc Kleine-Budde <mkl@pengutronix.de>
Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>,
Thomas Kopp <thomas.kopp@microchip.com>,
Vincent Mailhol <mailhol.vincent@wanadoo.fr>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Conor Dooley <conor+dt@kernel.org>,
linux-can@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
linux@ew.tq-group.com, alexander.stein@ew.tq-group.com
Subject: Re: Re: [PATCH 1/4] can: mcp251xfd: stop timestamp before sending chip to sleep
Date: Thu, 25 Apr 2024 07:17:11 +0200 [thread overview]
Message-ID: <ZinnV+GA20LWGUOV@herburgerg-w2> (raw)
In-Reply-To: <20240424-adaptable-zircon-badger-1fefd9-mkl@pengutronix.de>
On Wed, Apr 24, 2024 at 01:54:54PM +0200, Marc Kleine-Budde wrote:
> On 17.04.2024 15:43:54, Gregor Herburger wrote:
> > MCP2518FD exits Low-Power Mode (LPM) when CS is asserted. When chip
> > is send to sleep and the timestamp workqueue is not stopped chip is
> > waked by SPI transfer of mcp251xfd_timestamp_read.
>
> How does the Low-Power Mode affect the GPIO lines? Is there a difference
> if the device is only in sleep mode?
The MCP251XFD_REG_IOCON is cleared when leaving Low-Power Mode. This is
why I implemented regcache.
Best regards
Gregor
--
TQ-Systems GmbH | Mühlstraße 2, Gut Delling | 82229 Seefeld, Germany
Amtsgericht München, HRB 105018
Geschäftsführer: Detlef Schneider, Rüdiger Stahl, Stefan Schneider
https://www.tq-group.com/
next prev parent reply other threads:[~2024-04-25 5:17 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-17 13:43 [PATCH 0/4] can: mcp251xfd: add gpio functionality Gregor Herburger
2024-04-17 13:43 ` [PATCH 1/4] can: mcp251xfd: stop timestamp before sending chip to sleep Gregor Herburger
2024-04-24 8:24 ` Marc Kleine-Budde
2024-04-25 5:14 ` Gregor Herburger
2024-04-24 11:54 ` Marc Kleine-Budde
2024-04-25 5:17 ` Gregor Herburger [this message]
2024-04-25 6:29 ` Marc Kleine-Budde
2024-04-25 9:44 ` Gregor Herburger
2024-04-17 13:43 ` [PATCH 2/4] can: mcp251xfd: mcp251xfd_regmap_crc_write(): workaround for errata 5 Gregor Herburger
2024-04-23 16:46 ` Simon Horman
2024-04-24 10:54 ` Vincent MAILHOL
2024-04-24 11:51 ` Marc Kleine-Budde
2024-04-25 5:37 ` Gregor Herburger
2024-04-17 13:43 ` [PATCH 3/4] can: mcp251xfd: add gpio functionality Gregor Herburger
2024-04-24 8:15 ` Marc Kleine-Budde
2024-04-24 9:10 ` Marc Kleine-Budde
2024-04-24 9:15 ` Marc Kleine-Budde
2024-04-24 9:35 ` Marc Kleine-Budde
2024-04-24 13:01 ` Marc Kleine-Budde
2024-04-17 13:43 ` [PATCH 4/4] dt-binding: can: mcp251xfd: add gpio-controller property Gregor Herburger
2024-04-17 14:46 ` Rob Herring
2024-04-19 16:36 ` Krzysztof Kozlowski
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=ZinnV+GA20LWGUOV@herburgerg-w2 \
--to=gregor.herburger@ew.tq-group.com \
--cc=alexander.stein@ew.tq-group.com \
--cc=conor+dt@kernel.org \
--cc=davem@davemloft.net \
--cc=devicetree@vger.kernel.org \
--cc=edumazet@google.com \
--cc=krzysztof.kozlowski+dt@linaro.org \
--cc=kuba@kernel.org \
--cc=linux-can@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux@ew.tq-group.com \
--cc=mailhol.vincent@wanadoo.fr \
--cc=manivannan.sadhasivam@linaro.org \
--cc=mkl@pengutronix.de \
--cc=netdev@vger.kernel.org \
--cc=pabeni@redhat.com \
--cc=robh@kernel.org \
--cc=thomas.kopp@microchip.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.