From: Andrey Smirnov <andrew.smirnov@gmail.com>
To: Shawn Guo <shawnguo@kernel.org>
Cc: Andrey Yurovsky <yurovsky@gmail.com>,
Sascha Hauer <kernel@pengutronix.de>,
Fabio Estevam <fabio.estevam@nxp.com>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Russell King <linux@armlinux.org.uk>,
devicetree@vger.kernel.org,
linux-kernel <linux-kernel@vger.kernel.org>,
linux-arm-kernel <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH 6/8] ARM: dts: imx7d-sdb: Add GPIO expander node
Date: Fri, 14 Apr 2017 08:32:06 -0700 [thread overview]
Message-ID: <CAHQ1cqEJJRB-wYwj_947vPsVJWBKaVWYH-emga8R5_QdbJV1gg@mail.gmail.com> (raw)
In-Reply-To: <20170414034659.GH14915@dragon>
On Thu, Apr 13, 2017 at 8:47 PM, Shawn Guo <shawnguo@kernel.org> wrote:
> On Thu, Apr 13, 2017 at 06:32:40AM -0700, Andrey Smirnov wrote:
>> Add node for U38, a 74LV595PW serial-in shift register that acts as a
>> GPIO expander on the board.
>>
>> Cc: yurovsky@gmail.com
>> Cc: Sascha Hauer <kernel@pengutronix.de>
>> Cc: Fabio Estevam <fabio.estevam@nxp.com>
>> Cc: Rob Herring <robh+dt@kernel.org>
>> Cc: Mark Rutland <mark.rutland@arm.com>
>> Cc: Russell King <linux@armlinux.org.uk>
>> Cc: devicetree@vger.kernel.org
>> Cc: linux-kernel@vger.kernel.org
>> Cc: linux-arm-kernel@lists.infradead.org
>> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
>> ---
>> arch/arm/boot/dts/imx7d-sdb.dts | 32 ++++++++++++++++++++++++++++++++
>> 1 file changed, 32 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/imx7d-sdb.dts b/arch/arm/boot/dts/imx7d-sdb.dts
>> index 5be01a1..e0ff276 100644
>> --- a/arch/arm/boot/dts/imx7d-sdb.dts
>> +++ b/arch/arm/boot/dts/imx7d-sdb.dts
>> @@ -52,6 +52,30 @@
>> reg = <0x80000000 0x80000000>;
>> };
>>
>> + spi4 {
>> + compatible = "spi-gpio";
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_spi1>;
>> + status = "okay";
>
> The 'status' is not needed in this case.
>
Missed that, will fix in v2.
>> + gpio-sck = <&gpio1 13 0>;
>> + gpio-mosi = <&gpio1 9 0>;
>> + cs-gpios = <&gpio1 12 0>;
>> + num-chipselects = <1>;
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> +
>> + gpio_spi: gpio_spi@0 {
>
> gpio-expander might be a better node name?
>
Yeah, I agree. I'll change it to extended_io: gpio-expander@0
("Extended IO" is how this part is called out on the schematic)
>> + compatible = "fairchild,74hc595";
>> + gpio-controller;
>> + #gpio-cells = <2>;
>> + reg = <0>;
>> + registers-number = <1>;
>> + /* Enable PERI_3V3, SENSOR_RST_B and HDMI_RST*/
>> + registers-default = /bits/ 8 <0x74>;
>
> I do not see this property is documented or supported by kernel.
My bad, some downstream properties leakage. Will remove in v2.
Thanks,
Andrey Smirnov
next prev parent reply other threads:[~2017-04-14 15:32 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-13 13:32 [PATCH 0/8] i.MX7 PCIe related device tree changes Andrey Smirnov
2017-04-13 13:32 ` [PATCH 1/8] Revert "ARM: dts: imx: Remove unexistant property" Andrey Smirnov
2017-04-13 13:32 ` [PATCH 2/8] ARM: dts: imx6: Specify 'anatop-enable-bit' where appropriate Andrey Smirnov
2017-04-13 13:32 ` [PATCH 3/8] ARM: dts: imx7s: Adjust anatop-enable-bit for 'reg_1p0d' Andrey Smirnov
2017-04-14 3:28 ` Shawn Guo
2017-04-14 14:33 ` Andrey Smirnov
2017-04-14 15:32 ` Dong Aisheng
2017-04-14 16:08 ` Andrey Smirnov
2017-04-13 13:32 ` [PATCH 4/8] ARM: dts: imx7s: Add node for GPC Andrey Smirnov
2017-04-13 19:03 ` Tyler Baker
2017-04-13 19:18 ` Fabio Estevam
2017-04-13 19:24 ` Tyler Baker
2017-04-13 19:55 ` Fabio Estevam
2017-04-13 20:13 ` Tyler Baker
2017-04-13 20:49 ` Fabio Estevam
2017-04-13 21:20 ` Andrey Smirnov
2017-04-13 21:35 ` Tyler Baker
2017-04-13 22:00 ` Fabio Estevam
2017-04-13 21:19 ` Andrey Smirnov
2017-04-14 3:40 ` Shawn Guo
2017-04-14 15:19 ` Andrey Smirnov
2017-04-14 15:49 ` Dong Aisheng
2017-04-14 15:50 ` Andrey Smirnov
2017-04-13 13:32 ` [PATCH 5/8] ARM: dts: imx7s: Mark 'gpr' compatible with i.MX6 variant Andrey Smirnov
2017-04-14 15:56 ` Dong Aisheng
2017-04-14 16:30 ` Andrey Smirnov
2017-04-13 13:32 ` [PATCH 6/8] ARM: dts: imx7d-sdb: Add GPIO expander node Andrey Smirnov
2017-04-13 22:20 ` Fabio Estevam
2017-04-14 15:25 ` Andrey Smirnov
2017-04-14 3:47 ` Shawn Guo
2017-04-14 15:32 ` Andrey Smirnov [this message]
2017-04-14 16:00 ` Dong Aisheng
2017-04-13 13:32 ` [PATCH 7/8] ARM: dts: imx7d: Add node for PCIe controller Andrey Smirnov
2017-04-13 13:32 ` [PATCH 8/8] ARM: dts: imx7d-sdb: Enable PCIe peripheral Andrey Smirnov
2017-04-13 22:23 ` Fabio Estevam
2017-04-14 3:51 ` Shawn Guo
2017-04-14 15:45 ` Andrey Smirnov
2017-04-19 18:28 ` [PATCH 0/8] i.MX7 PCIe related device tree changes Tyler Baker
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