From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vladimir Oltean Subject: [RFC PATCH net-next 09/11] ARM: dts: ls1021a-tsn: Add debugging GPIOs for the SJA1105 and DSPI drivers Date: Fri, 16 Aug 2019 03:44:47 +0300 Message-ID: <20190816004449.10100-10-olteanv@gmail.com> References: <20190816004449.10100-1-olteanv@gmail.com> Cc: linux-spi@vger.kernel.org, netdev@vger.kernel.org, Vladimir Oltean To: h.feurstein@gmail.com, mlichvar@redhat.com, richardcochran@gmail.com, andrew@lunn.ch, f.fainelli@gmail.com, broonie@kernel.org Return-path: In-Reply-To: <20190816004449.10100-1-olteanv@gmail.com> Sender: netdev-owner@vger.kernel.org List-Id: linux-spi.vger.kernel.org These GPIOs are exported to the expansion pin header at the rear of the board: EXP1_GPIO7: row 1, pin 9 from left EXP1_GPIO6: row 1, pin 8 from left Experimentally I could only see EXP1_GPIO6 (the pin currently assigned to the DSPI driver) actually toggle on an analyzer - I don't know why, but on my board, EXP1_GPIO7 isn't. Signed-off-by: Vladimir Oltean --- arch/arm/boot/dts/ls1021a-tsn.dts | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm/boot/dts/ls1021a-tsn.dts b/arch/arm/boot/dts/ls1021a-tsn.dts index 9d4eee986f53..6cec454c484c 100644 --- a/arch/arm/boot/dts/ls1021a-tsn.dts +++ b/arch/arm/boot/dts/ls1021a-tsn.dts @@ -5,6 +5,7 @@ /dts-v1/; #include "ls1021a.dtsi" +#include / { model = "NXP LS1021A-TSN Board"; @@ -34,6 +35,8 @@ &dspi0 { bus-num = <0>; + /* EXP1_GPIO6 is GPIO4_18 */ + debug-gpios = <&gpio3 18 GPIO_ACTIVE_HIGH>; status = "okay"; /* ADG704BRMZ 1:4 SPI mux/demux */ @@ -57,6 +60,8 @@ /* SPI controller settings for SJA1105 timing requirements */ fsl,spi-cs-sck-delay = <1000>; fsl,spi-sck-cs-delay = <1000>; + /* EXP1_GPIO7 is GPIO4_19 */ + debug-gpios = <&gpio3 19 GPIO_ACTIVE_HIGH>; ports { #address-cells = <1>; -- 2.17.1