From 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e Mon Sep 17 00:00:00 2001 From: hc <hc@nodka.com> Date: Mon, 13 May 2024 10:30:14 +0000 Subject: [PATCH] modify sin led gpio --- kernel/Documentation/devicetree/bindings/spi/spi-sprd-adi.txt | 11 ++++++++--- 1 files changed, 8 insertions(+), 3 deletions(-) diff --git a/kernel/Documentation/devicetree/bindings/spi/spi-sprd-adi.txt b/kernel/Documentation/devicetree/bindings/spi/spi-sprd-adi.txt index 8de589b..2567c82 100644 --- a/kernel/Documentation/devicetree/bindings/spi/spi-sprd-adi.txt +++ b/kernel/Documentation/devicetree/bindings/spi/spi-sprd-adi.txt @@ -25,18 +25,23 @@ ADI registers will make ADI controller registers chaos to lead incorrect results. Then we need one hardware spinlock to synchronize between the multiple subsystems. +The new version ADI controller supplies multiple master channels for different +subsystem accessing, that means no need to add hardware spinlock to synchronize, +thus change the hardware spinlock support to be optional to keep backward +compatibility. + Required properties: - compatible: Should be "sprd,sc9860-adi". - reg: Offset and length of ADI-SPI controller register space. -- hwlocks: Reference to a phandle of a hwlock provider node. -- hwlock-names: Reference to hwlock name strings defined in the same order - as the hwlocks, should be "adi". - #address-cells: Number of cells required to define a chip select address on the ADI-SPI bus. Should be set to 1. - #size-cells: Size of cells required to define a chip select address size on the ADI-SPI bus. Should be set to 0. Optional properties: +- hwlocks: Reference to a phandle of a hwlock provider node. +- hwlock-names: Reference to hwlock name strings defined in the same order + as the hwlocks, should be "adi". - sprd,hw-channels: This is an array of channel values up to 49 channels. The first value specifies the hardware channel id which is used to transfer data triggered by hardware automatically, and the second -- Gitblit v1.6.2