From mboxrd@z Thu Jan 1 00:00:00 1970 From: cezary.gapinski@gmail.com Subject: [PATCH v2 14/14] spi: stm32: add description about STM32F4 bindings Date: Mon, 24 Dec 2018 23:00:40 +0100 Message-ID: <1545688840-23992-15-git-send-email-cezary.gapinski@gmail.com> References: <1545688840-23992-1-git-send-email-cezary.gapinski@gmail.com> Cc: Maxime Coquelin , Alexandre Torgue , Mark Rutland , Cezary Gapinski To: Mark Brown , linux-spi@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Rob Herring , devicetree@vger.kernel.org, Amelie Delaunay Return-path: In-Reply-To: <1545688840-23992-1-git-send-email-cezary.gapinski@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-spi.vger.kernel.org From: Cezary Gapinski Add description that STM32F4 can be used in compatible property. Master Inter-Data Idleness optional property cannot be used in STM32F4. Signed-off-by: Cezary Gapinski --- Documentation/devicetree/bindings/spi/spi-stm32.txt | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/Documentation/devicetree/bindings/spi/spi-stm32.txt b/Documentation/devicetree/bindings/spi/spi-stm32.txt index 1b3fa2c1..d82755c 100644 --- a/Documentation/devicetree/bindings/spi/spi-stm32.txt +++ b/Documentation/devicetree/bindings/spi/spi-stm32.txt @@ -7,7 +7,9 @@ from 4 to 32-bit data size. Although it can be configured as master or slave, only master is supported by the driver. Required properties: -- compatible: Must be "st,stm32h7-spi". +- compatible: Should be one of: + "st,stm32h7-spi" + "st,stm32f4-spi" - reg: Offset and length of the device's register set. - interrupts: Must contain the interrupt id. - clocks: Must contain an entry for spiclk (which feeds the internal clock @@ -30,8 +32,9 @@ Child nodes represent devices on the SPI bus See ../spi/spi-bus.txt Optional properties: -- st,spi-midi-ns: (Master Inter-Data Idleness) minimum time delay in - nanoseconds inserted between two consecutive data frames. +- st,spi-midi-ns: Only for STM32H7, (Master Inter-Data Idleness) minimum time + delay in nanoseconds inserted between two consecutive data + frames. Example: -- 2.7.4