From: Lubomir Rintel <lkundrak@v3.sk> To: Mark Brown <broonie@kernel.org>, Geert Uytterhoeven <geert+renesas@glider.be>, Darren Hart <dvhart@infradead.org>, Andy Shevchenko <andy@infradead.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>, James Cameron <quozl@laptop.org>, Sebastian Reichel <sre@kernel.org>, Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Eric Miao <eric.y.miao@gmail.com>, Haojian Zhuang <haojian.zhuang@gmail.com>, Daniel Mack <daniel@zonque.org>, Robert Jarzmik <robert.jarzmik@free.fr>, linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, platform-driver-x86@vger.kernel.org, devel@driverdev.osuosl.org, linux-pm@vger.kernel.org, Lubomir Rintel <lkundrak@v3.sk> Subject: [PATCH 03/15] dt-bindings: olpc,xo1.75-ec: Add OLPC XO-1.75 EC bindings Date: Wed, 10 Oct 2018 19:22:48 +0200 [thread overview] Message-ID: <20181010172300.317643-4-lkundrak@v3.sk> (raw) In-Reply-To: <20181010172300.317643-1-lkundrak@v3.sk> The OLPC XO-1.75 Embedded Controller is a SPI master that uses extra signals for handshaking. It needs to know when is the slave (Linux) side's TX FIFO ready for transfer (the ready-gpio signal on the SPI controller node) and when does it wish to respond with a command (the cmd-gpio property). Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> --- .../bindings/misc/olpc,xo1.75-ec.txt | 24 +++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 Documentation/devicetree/bindings/misc/olpc,xo1.75-ec.txt diff --git a/Documentation/devicetree/bindings/misc/olpc,xo1.75-ec.txt b/Documentation/devicetree/bindings/misc/olpc,xo1.75-ec.txt new file mode 100644 index 000000000000..14385fee65d2 --- /dev/null +++ b/Documentation/devicetree/bindings/misc/olpc,xo1.75-ec.txt @@ -0,0 +1,24 @@ +OLPC XO-1.75 Embedded Controller + +Required properties: +- compatible: Should be "olpc,xo1.75-ec". +- cmd-gpio: gpio specifier of the CMD pin + +The embedded controller requires the SPI controller driver to signal readiness +to receive a transfer (that is, when TX FIFO contains the response data) by +strobing the ACK pin with the ready signal. See the "ready-gpio" property of the +SSP binding as documented in: +<Documentation/devicetree/bindings/spi/spi-pxa2xx.txt>. + +Example: + &ssp3 { + spi-slave; + status = "okay"; + ready-gpio = <&gpio 125 GPIO_ACTIVE_HIGH>; + + slave { + compatible = "olpc,xo1.75-ec"; + spi-cpha; + cmd-gpio = <&gpio 155 GPIO_ACTIVE_HIGH>; + }; + }; -- 2.19.0
WARNING: multiple messages have this Message-ID (diff)
From: lkundrak@v3.sk (Lubomir Rintel) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH 03/15] dt-bindings: olpc, xo1.75-ec: Add OLPC XO-1.75 EC bindings Date: Wed, 10 Oct 2018 19:22:48 +0200 [thread overview] Message-ID: <20181010172300.317643-4-lkundrak@v3.sk> (raw) In-Reply-To: <20181010172300.317643-1-lkundrak@v3.sk> The OLPC XO-1.75 Embedded Controller is a SPI master that uses extra signals for handshaking. It needs to know when is the slave (Linux) side's TX FIFO ready for transfer (the ready-gpio signal on the SPI controller node) and when does it wish to respond with a command (the cmd-gpio property). Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> --- .../bindings/misc/olpc,xo1.75-ec.txt | 24 +++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 Documentation/devicetree/bindings/misc/olpc,xo1.75-ec.txt diff --git a/Documentation/devicetree/bindings/misc/olpc,xo1.75-ec.txt b/Documentation/devicetree/bindings/misc/olpc,xo1.75-ec.txt new file mode 100644 index 000000000000..14385fee65d2 --- /dev/null +++ b/Documentation/devicetree/bindings/misc/olpc,xo1.75-ec.txt @@ -0,0 +1,24 @@ +OLPC XO-1.75 Embedded Controller + +Required properties: +- compatible: Should be "olpc,xo1.75-ec". +- cmd-gpio: gpio specifier of the CMD pin + +The embedded controller requires the SPI controller driver to signal readiness +to receive a transfer (that is, when TX FIFO contains the response data) by +strobing the ACK pin with the ready signal. See the "ready-gpio" property of the +SSP binding as documented in: +<Documentation/devicetree/bindings/spi/spi-pxa2xx.txt>. + +Example: + &ssp3 { + spi-slave; + status = "okay"; + ready-gpio = <&gpio 125 GPIO_ACTIVE_HIGH>; + + slave { + compatible = "olpc,xo1.75-ec"; + spi-cpha; + cmd-gpio = <&gpio 155 GPIO_ACTIVE_HIGH>; + }; + }; -- 2.19.0
next prev parent reply other threads:[~2018-10-10 17:23 UTC|newest] Thread overview: 164+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-10-10 17:22 [PATCH 0/15] Add support for OLPC XO 1.75 Embedded Controller Lubomir Rintel 2018-10-10 17:22 ` Lubomir Rintel 2018-10-10 17:22 ` [PATCH 01/15] power: supply: olpc_battery: correct the temperature units Lubomir Rintel 2018-10-10 17:22 ` Lubomir Rintel 2018-10-19 13:00 ` Andy Shevchenko 2018-10-19 13:00 ` Andy Shevchenko 2018-10-19 13:00 ` Andy Shevchenko 2018-10-21 21:27 ` Sebastian Reichel 2018-10-21 21:27 ` Sebastian Reichel 2018-10-21 21:27 ` Sebastian Reichel 2018-10-21 21:27 ` Sebastian Reichel 2018-11-02 22:16 ` Pavel Machek 2018-11-02 22:16 ` Pavel Machek 2018-10-10 17:22 ` [PATCH 02/15] Revert "platform/olpc: Make ec explicitly non-modular" Lubomir Rintel 2018-10-10 17:22 ` Lubomir Rintel 2018-10-19 13:04 ` Andy Shevchenko 2018-10-19 13:04 ` Andy Shevchenko 2018-10-19 13:04 ` Andy Shevchenko 2018-11-02 22:16 ` Pavel Machek 2018-11-02 22:16 ` Pavel Machek 2018-11-15 18:57 ` Lubomir Rintel 2018-11-15 18:57 ` Lubomir Rintel 2018-10-10 17:22 ` Lubomir Rintel [this message] 2018-10-10 17:22 ` [PATCH 03/15] dt-bindings: olpc, xo1.75-ec: Add OLPC XO-1.75 EC bindings Lubomir Rintel 2018-10-17 19:38 ` [PATCH 03/15] dt-bindings: olpc,xo1.75-ec: " Rob Herring 2018-10-17 19:38 ` Rob Herring 2018-11-04 12:26 ` Pavel Machek 2018-11-04 12:26 ` Pavel Machek 2018-11-04 12:26 ` Pavel Machek 2018-10-10 17:22 ` [PATCH 04/15] Platform: OLPC: Remove an unused include Lubomir Rintel 2018-10-10 17:22 ` Lubomir Rintel 2018-10-19 13:05 ` Andy Shevchenko 2018-10-19 13:05 ` Andy Shevchenko 2018-10-19 13:05 ` Andy Shevchenko 2018-11-13 13:59 ` Lubomir Rintel 2018-11-13 13:59 ` Lubomir Rintel 2018-11-13 13:59 ` Lubomir Rintel 2018-11-04 12:26 ` Pavel Machek 2018-11-04 12:26 ` Pavel Machek 2018-10-10 17:22 ` [PATCH 05/15] Platform: OLPC: Move OLPC config symbol out of x86 tree Lubomir Rintel 2018-10-10 17:22 ` Lubomir Rintel 2018-10-19 13:09 ` Andy Shevchenko 2018-10-19 13:09 ` Andy Shevchenko 2018-10-19 13:09 ` Andy Shevchenko 2018-11-04 12:27 ` Pavel Machek 2018-11-04 12:27 ` Pavel Machek 2018-10-10 17:22 ` [PATCH 06/15] Platform: OLPC: Add XO-1.75 EC driver Lubomir Rintel 2018-10-10 17:22 ` Lubomir Rintel 2018-10-19 16:06 ` Andy Shevchenko 2018-10-19 16:06 ` Andy Shevchenko 2018-10-19 16:06 ` Andy Shevchenko 2018-11-13 17:26 ` Lubomir Rintel 2018-11-13 17:26 ` Lubomir Rintel 2018-11-13 17:26 ` Lubomir Rintel 2018-11-13 22:06 ` James Cameron 2018-11-13 22:06 ` James Cameron 2018-11-13 22:06 ` James Cameron 2018-11-19 10:40 ` Pavel Machek 2018-11-19 10:40 ` Pavel Machek 2018-11-19 10:40 ` Pavel Machek 2018-11-19 10:40 ` Pavel Machek 2018-11-19 13:25 ` Lubomir Rintel 2018-11-19 13:25 ` Lubomir Rintel 2018-11-19 13:25 ` Lubomir Rintel 2018-11-19 13:25 ` Lubomir Rintel 2018-10-10 17:22 ` [PATCH 07/15] Platform: OLPC: Avoid a warning if the EC didn't register yet Lubomir Rintel 2018-10-10 17:22 ` Lubomir Rintel 2018-10-19 13:11 ` Andy Shevchenko 2018-10-19 13:11 ` Andy Shevchenko 2018-10-19 13:11 ` Andy Shevchenko 2018-11-04 12:30 ` Pavel Machek 2018-11-04 12:30 ` Pavel Machek 2018-11-04 12:30 ` Pavel Machek 2018-10-10 17:22 ` [PATCH 08/15] Platform: OLPC: Move EC-specific functionality out from x86 Lubomir Rintel 2018-10-10 17:22 ` Lubomir Rintel 2018-10-19 13:36 ` Andy Shevchenko 2018-10-19 13:36 ` Andy Shevchenko 2018-10-19 13:36 ` Andy Shevchenko 2018-11-14 16:20 ` Lubomir Rintel 2018-11-14 16:20 ` Lubomir Rintel 2018-11-14 16:20 ` Lubomir Rintel 2018-11-04 12:31 ` Pavel Machek 2018-11-04 12:31 ` Pavel Machek 2018-10-10 17:22 ` [PATCH 09/15] Platform: OLPC: add a regulator for the DCON Lubomir Rintel 2018-10-10 17:22 ` Lubomir Rintel 2018-10-10 17:22 ` Lubomir Rintel 2018-10-19 13:39 ` Andy Shevchenko 2018-10-19 13:39 ` Andy Shevchenko 2018-10-19 13:39 ` Andy Shevchenko 2018-10-10 17:22 ` [PATCH 10/15] dt-bindings: olpc_battery: Add XO-1.5 battery Lubomir Rintel 2018-10-10 17:22 ` Lubomir Rintel 2018-10-17 19:38 ` Rob Herring 2018-10-17 19:38 ` Rob Herring 2018-10-17 19:38 ` Rob Herring 2018-10-17 19:38 ` Rob Herring 2018-11-04 12:32 ` Pavel Machek 2018-11-04 12:32 ` Pavel Machek 2018-10-10 17:22 ` [PATCH 11/15] x86, olpc: Use a correct version when making up a battery node Lubomir Rintel 2018-10-10 17:22 ` Lubomir Rintel 2018-10-19 13:43 ` Andy Shevchenko 2018-10-19 13:43 ` Andy Shevchenko 2018-10-19 13:43 ` Andy Shevchenko 2018-11-14 16:49 ` Lubomir Rintel 2018-11-14 16:49 ` Lubomir Rintel 2018-11-14 16:49 ` Lubomir Rintel 2018-11-04 12:34 ` Pavel Machek 2018-11-04 12:34 ` Pavel Machek 2018-11-04 12:34 ` Pavel Machek 2018-10-10 17:22 ` [PATCH 12/15] power: supply: olpc_battery: Use DT to get battery version Lubomir Rintel 2018-10-10 17:22 ` Lubomir Rintel 2018-10-19 13:45 ` Andy Shevchenko 2018-10-19 13:45 ` Andy Shevchenko 2018-10-19 13:45 ` Andy Shevchenko 2018-11-15 18:33 ` Lubomir Rintel 2018-11-15 18:33 ` Lubomir Rintel 2018-11-15 18:33 ` Lubomir Rintel 2018-11-04 12:37 ` Pavel Machek 2018-11-04 12:37 ` Pavel Machek 2018-11-15 18:36 ` Lubomir Rintel 2018-11-15 18:36 ` Lubomir Rintel 2018-10-10 17:22 ` [PATCH 13/15] power: supply: olpc_battery: Move priv data to a struct Lubomir Rintel 2018-10-10 17:22 ` Lubomir Rintel 2018-10-10 17:22 ` Lubomir Rintel 2018-10-19 13:48 ` Andy Shevchenko 2018-10-19 13:48 ` Andy Shevchenko 2018-10-19 13:48 ` Andy Shevchenko 2018-11-04 14:37 ` Pavel Machek 2018-11-04 14:37 ` Pavel Machek 2018-11-14 17:10 ` Lubomir Rintel 2018-11-14 17:10 ` Lubomir Rintel 2018-10-10 17:22 ` [PATCH 14/15] power: supply: olpc_battery: Avoid using platform_info Lubomir Rintel 2018-10-10 17:22 ` Lubomir Rintel 2018-10-19 13:50 ` Andy Shevchenko 2018-10-19 13:50 ` Andy Shevchenko 2018-10-19 13:50 ` Andy Shevchenko 2018-11-14 17:19 ` Lubomir Rintel 2018-11-14 17:19 ` Lubomir Rintel 2018-11-14 17:19 ` Lubomir Rintel 2018-11-04 14:39 ` Pavel Machek 2018-11-04 14:39 ` Pavel Machek 2018-10-10 17:23 ` [PATCH 15/15] power: supply: olpc_battery: Add OLPC XO 1.75 support Lubomir Rintel 2018-10-10 17:23 ` Lubomir Rintel 2018-10-19 13:55 ` Andy Shevchenko 2018-10-19 13:55 ` Andy Shevchenko 2018-10-19 13:55 ` Andy Shevchenko 2018-11-04 14:39 ` Pavel Machek 2018-11-04 14:39 ` Pavel Machek 2018-11-04 14:39 ` Pavel Machek 2018-10-10 19:26 ` [PATCH 0/15] Add support for OLPC XO 1.75 Embedded Controller Rob Herring 2018-10-10 19:26 ` Rob Herring 2018-10-10 19:26 ` Rob Herring 2018-10-10 19:26 ` Rob Herring 2018-10-11 10:42 ` Lubomir Rintel 2018-10-11 10:42 ` Lubomir Rintel 2018-10-11 10:42 ` Lubomir Rintel 2018-10-19 13:57 ` Andy Shevchenko 2018-10-19 13:57 ` Andy Shevchenko 2018-10-19 13:57 ` Andy Shevchenko 2018-10-23 17:03 ` Lubomir Rintel 2018-10-23 17:03 ` Lubomir Rintel 2018-10-23 17:03 ` Lubomir Rintel 2018-10-21 21:45 ` Sebastian Reichel 2018-10-21 21:45 ` Sebastian Reichel 2018-10-21 21:45 ` Sebastian Reichel
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=20181010172300.317643-4-lkundrak@v3.sk \ --to=lkundrak@v3.sk \ --cc=andy@infradead.org \ --cc=broonie@kernel.org \ --cc=daniel@zonque.org \ --cc=devel@driverdev.osuosl.org \ --cc=devicetree@vger.kernel.org \ --cc=dvhart@infradead.org \ --cc=eric.y.miao@gmail.com \ --cc=geert+renesas@glider.be \ --cc=gregkh@linuxfoundation.org \ --cc=haojian.zhuang@gmail.com \ --cc=linux-arm-kernel@lists.infradead.org \ --cc=linux-kernel@vger.kernel.org \ --cc=linux-pm@vger.kernel.org \ --cc=linux-spi@vger.kernel.org \ --cc=mark.rutland@arm.com \ --cc=platform-driver-x86@vger.kernel.org \ --cc=quozl@laptop.org \ --cc=robert.jarzmik@free.fr \ --cc=robh+dt@kernel.org \ --cc=sre@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: linkBe 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.