Commit 5ad8d051 authored Jan 19, 2024 by Heiko Stuebner Committed by sanglipeng1 Jul 23, 2024

arm64: dts: rockchip: set num-cs property for spi on px30

stable inclusion
from stable-v5.10.211
commit 905de68fcdfffbf4fb53805aeeb15ecfbbaac84c
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/IAF2J4

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=905de68fcdfffbf4fb53805aeeb15ecfbbaac84c



--------------------------------

[ Upstream commit 334bf0710c98d391f4067b72f535d6c4c84dfb6f ]

The px30 has two spi controllers with two chip-selects each.
The num-cs property is specified as the total number of chip
selects a controllers has and is used since 2020 to find uses
of chipselects outside that range in the Rockchip spi driver.

Without the property set, the default is 1, so spi devices
using the second chipselect will not be created.

Fixes: eb1262e3 ("spi: spi-rockchip: use num-cs property and ctlr->enable_gpiods")
Signed-off-by: Heiko Stuebner <heiko.stuebner@cherry.de>
Reviewed-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
Link: https://lore.kernel.org/r/20240119101656.965744-1-heiko@sntech.de


Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: sanglipeng1 <sanglipeng1@jd.com>

parent bddefb8f

arch/arm64/boot/dts/rockchip/px30.dtsi

+2 −0

Original line number	Diff line number	Diff line
		@@ -577,6 +577,7 @@
		clock-names = "spiclk", "apb_pclk";
		dmas = <&dmac 12>, <&dmac 13>;
		dma-names = "tx", "rx";
		num-cs = <2>;
		pinctrl-names = "default";
		pinctrl-0 = <&spi0_clk &spi0_csn &spi0_miso &spi0_mosi>;
		#address-cells = <1>;
		@@ -592,6 +593,7 @@
		clock-names = "spiclk", "apb_pclk";
		dmas = <&dmac 14>, <&dmac 15>;
		dma-names = "tx", "rx";
		num-cs = <2>;
		pinctrl-names = "default";
		pinctrl-0 = <&spi1_clk &spi1_csn0 &spi1_csn1 &spi1_miso &spi1_mosi>;
		#address-cells = <1>;