From mboxrd@z Thu Jan 1 00:00:00 1970 From: slemieux.tyco@gmail.com (slemieux.tyco at gmail.com) Date: Thu, 14 Apr 2016 08:20:36 -0400 Subject: [PATCH 2/3] arm: dts: lpc32xx: disabled ssp0/spi1 & ssp1/spi2 by default In-Reply-To: <1460636437-21764-1-git-send-email-slemieux.tyco@gmail.com> References: <1460636437-21764-1-git-send-email-slemieux.tyco@gmail.com> Message-ID: <1460636437-21764-3-git-send-email-slemieux.tyco@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Sylvain Lemieux The SSP0/SPI1 and SSP1/SPI2 shared pinout and should be disable by default. Board specific dts should enable them, as needed. Signed-off-by: Sylvain Lemieux --- arch/arm/boot/dts/lpc32xx.dtsi | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/arm/boot/dts/lpc32xx.dtsi b/arch/arm/boot/dts/lpc32xx.dtsi index 0b6a643..aa5cb43 100644 --- a/arch/arm/boot/dts/lpc32xx.dtsi +++ b/arch/arm/boot/dts/lpc32xx.dtsi @@ -162,12 +162,17 @@ compatible = "simple-bus"; ranges = <0x20000000 0x20000000 0x30000000>; + /* + * ssp0 and spi1 are shared pins; + * enable one in your board dts, as needed. + */ ssp0: ssp at 20084000 { compatible = "arm,pl022", "arm,primecell"; reg = <0x20084000 0x1000>; interrupts = <20 IRQ_TYPE_LEVEL_HIGH>; clocks = <&clk LPC32XX_CLK_SSP0>; clock-names = "apb_pclk"; + status = "disabled"; }; spi1: spi at 20088000 { @@ -175,14 +180,20 @@ reg = <0x20088000 0x1000>; clocks = <&clk LPC32XX_CLK_SPI1>; clock-names = "apb_pclk"; + status = "disabled"; }; + /* + * ssp1 and spi2 are shared pins; + * enable one in your board dts, as needed. + */ ssp1: ssp at 2008c000 { compatible = "arm,pl022", "arm,primecell"; reg = <0x2008c000 0x1000>; interrupts = <21 IRQ_TYPE_LEVEL_HIGH>; clocks = <&clk LPC32XX_CLK_SSP1>; clock-names = "apb_pclk"; + status = "disabled"; }; spi2: spi at 20090000 { @@ -190,6 +201,7 @@ reg = <0x20090000 0x1000>; clocks = <&clk LPC32XX_CLK_SPI2>; clock-names = "apb_pclk"; + status = "disabled"; }; i2s0: i2s at 20094000 { -- 1.8.3.1