From: Simon Horman <horms+renesas@verge.net.au> To: linux-renesas-soc@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, Magnus Damm <magnus.damm@gmail.com>, Wolfram Sang <wsa+renesas@sang-engineering.com>, Simon Horman <horms+renesas@verge.net.au> Subject: [PATCH v3 01/13] ARM: dts: lager: rename and reindex i2cexio Date: Wed, 22 Jun 2016 12:43:39 +0900 [thread overview] Message-ID: <1466567031-20381-2-git-send-email-horms+renesas@verge.net.au> (raw) In-Reply-To: <1466567031-20381-1-git-send-email-horms+renesas@verge.net.au> The rename from i2cexio to i2cexio0 is in in preparation for adding i2cexio1 which will use the dmuxer for IIC1/I2C1. The reindexing from i2c8 to i2c10 is to allow space for grouping of additional GPIO buses to added by follow-up patches to support demuxing of other i2c buses. Also note that fallback to GPIO is not provided by the hardware for IIC1/I2C1. Signed-off-by: Simon Horman <horms+renesas@verge.net.au> --- v2: * Reindex i2c * Add note that GPIO fallback is not provided by hardware --- arch/arm/boot/dts/r8a7790-lager.dts | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/arch/arm/boot/dts/r8a7790-lager.dts b/arch/arm/boot/dts/r8a7790-lager.dts index 52b56fcaddf2..6b25d9e7d21b 100644 --- a/arch/arm/boot/dts/r8a7790-lager.dts +++ b/arch/arm/boot/dts/r8a7790-lager.dts @@ -50,7 +50,7 @@ aliases { serial0 = &scif0; serial1 = &scifa1; - i2c8 = "i2cexio"; + i2c10 = "i2cexio0"; }; chosen { @@ -262,11 +262,13 @@ * bus with IIC3 on pins 110 (SCL) + 112 (SDA), select I2C0 at runtime, and * instantiate the slave device at runtime according to the documentation. * You can then communicate with the slave via IIC3. + * + * IIC0/I2C0 does not appear to support fallback to GPIO. */ - i2cexio: i2c-8 { + i2cexio0: i2c-10 { compatible = "i2c-demux-pinctrl"; i2c-parent = <&iic0>, <&i2c0>; - i2c-bus-name = "i2c-exio"; + i2c-bus-name = "i2c-exio0"; #address-cells = <1>; #size-cells = <0>; }; @@ -580,12 +582,12 @@ &i2c0 { pinctrl-0 = <&i2c0_pins>; - pinctrl-names = "i2c-exio"; + pinctrl-names = "i2c-exio0"; }; &iic0 { pinctrl-0 = <&iic0_pins>; - pinctrl-names = "i2c-exio"; + pinctrl-names = "i2c-exio0"; }; &iic1 { -- 2.1.4
WARNING: multiple messages have this Message-ID (diff)
From: horms+renesas@verge.net.au (Simon Horman) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v3 01/13] ARM: dts: lager: rename and reindex i2cexio Date: Wed, 22 Jun 2016 12:43:39 +0900 [thread overview] Message-ID: <1466567031-20381-2-git-send-email-horms+renesas@verge.net.au> (raw) In-Reply-To: <1466567031-20381-1-git-send-email-horms+renesas@verge.net.au> The rename from i2cexio to i2cexio0 is in in preparation for adding i2cexio1 which will use the dmuxer for IIC1/I2C1. The reindexing from i2c8 to i2c10 is to allow space for grouping of additional GPIO buses to added by follow-up patches to support demuxing of other i2c buses. Also note that fallback to GPIO is not provided by the hardware for IIC1/I2C1. Signed-off-by: Simon Horman <horms+renesas@verge.net.au> --- v2: * Reindex i2c * Add note that GPIO fallback is not provided by hardware --- arch/arm/boot/dts/r8a7790-lager.dts | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/arch/arm/boot/dts/r8a7790-lager.dts b/arch/arm/boot/dts/r8a7790-lager.dts index 52b56fcaddf2..6b25d9e7d21b 100644 --- a/arch/arm/boot/dts/r8a7790-lager.dts +++ b/arch/arm/boot/dts/r8a7790-lager.dts @@ -50,7 +50,7 @@ aliases { serial0 = &scif0; serial1 = &scifa1; - i2c8 = "i2cexio"; + i2c10 = "i2cexio0"; }; chosen { @@ -262,11 +262,13 @@ * bus with IIC3 on pins 110 (SCL) + 112 (SDA), select I2C0 at runtime, and * instantiate the slave device at runtime according to the documentation. * You can then communicate with the slave via IIC3. + * + * IIC0/I2C0 does not appear to support fallback to GPIO. */ - i2cexio: i2c-8 { + i2cexio0: i2c-10 { compatible = "i2c-demux-pinctrl"; i2c-parent = <&iic0>, <&i2c0>; - i2c-bus-name = "i2c-exio"; + i2c-bus-name = "i2c-exio0"; #address-cells = <1>; #size-cells = <0>; }; @@ -580,12 +582,12 @@ &i2c0 { pinctrl-0 = <&i2c0_pins>; - pinctrl-names = "i2c-exio"; + pinctrl-names = "i2c-exio0"; }; &iic0 { pinctrl-0 = <&iic0_pins>; - pinctrl-names = "i2c-exio"; + pinctrl-names = "i2c-exio0"; }; &iic1 { -- 2.1.4
next prev parent reply other threads:[~2016-06-22 3:54 UTC|newest] Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-06-22 3:43 [PATCH v3 00/13] ARM: dts: r8a779x: use demuxer for I2C Simon Horman 2016-06-22 3:43 ` Simon Horman 2016-06-22 3:43 ` Simon Horman [this message] 2016-06-22 3:43 ` [PATCH v3 01/13] ARM: dts: lager: rename and reindex i2cexio Simon Horman 2016-08-30 15:29 ` Wolfram Sang 2016-08-30 15:29 ` Wolfram Sang 2016-09-02 8:17 ` Simon Horman 2016-09-02 8:17 ` Simon Horman 2016-06-22 3:43 ` [PATCH v3 02/13] ARM: dts: lager: use demuxer for IIC1/I2C1 Simon Horman 2016-06-22 3:43 ` Simon Horman 2016-06-22 3:43 ` [PATCH v3 03/13] ARM: dts: lager: use demuxer for IIC2/I2C2 Simon Horman 2016-06-22 3:43 ` Simon Horman 2016-06-22 3:43 ` [PATCH v3 04/13] ARM: dts: lager: use demuxer for IIC3/I2C3 Simon Horman 2016-06-22 3:43 ` Simon Horman 2016-06-22 7:29 ` Geert Uytterhoeven 2016-06-22 7:29 ` Geert Uytterhoeven 2016-06-22 3:43 ` [PATCH v3 05/13] ARM: dts: koelsch: use demuxer for I2C1 Simon Horman 2016-06-22 3:43 ` Simon Horman 2016-06-22 3:43 ` [PATCH v3 06/13] ARM: dts: koelsch: use demuxer for I2C2 Simon Horman 2016-06-22 3:43 ` Simon Horman 2016-06-22 3:43 ` [PATCH v3 07/13] ARM: dts: koelsch: use demuxer for I2C4 Simon Horman 2016-06-22 3:43 ` Simon Horman 2016-06-22 3:43 ` [PATCH v3 08/13] ARM: dts: porter: use demuxer for I2C2 Simon Horman 2016-06-22 3:43 ` Simon Horman 2016-06-22 3:43 ` [PATCH v3 09/13] " Simon Horman 2016-06-22 3:43 ` Simon Horman 2016-06-22 3:43 ` [PATCH v3 10/13] ARM: dts: koelsch: use demuxer for I2C4 Simon Horman 2016-06-22 3:43 ` Simon Horman 2016-06-22 3:43 ` [PATCH v3 11/13] ARM: dts: alt: use demuxer for I2C1 Simon Horman 2016-06-22 3:43 ` Simon Horman 2016-06-22 3:43 ` [PATCH v3 12/13] ARM: dts: alt: use demuxer for I2C4 Simon Horman 2016-06-22 3:43 ` Simon Horman 2016-06-22 3:43 ` [PATCH v3 13/13] ARM: dts: silk: use demuxer for I2C1 Simon Horman 2016-06-22 3:43 ` Simon Horman
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