Re: [PATCH 2/8] soc: Add MediaTek pericfg controller support

From: Mark Rutland
Date: Tue Jan 20 2015 - 11:16:29 EST


On Tue, Jan 20, 2015 at 09:47:05AM +0000, Sascha Hauer wrote:
> This adds support for the MediaTek pericfg controller found
> on the MT8135/MT8173 SoCs. The pericfg controller contains
> miscellaneous registers for controlling peripheral resets and
> clocks.
>
> Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
> ---
> .../devicetree/bindings/soc/mediatek/pericfg.txt | 19 +++++++++++++++++++
> drivers/soc/mediatek/Kconfig | 10 ++++++++++
> drivers/soc/mediatek/Makefile | 1 +
> drivers/soc/mediatek/mtk-pericfg.c | 1 -
> 4 files changed, 30 insertions(+), 1 deletion(-)
> create mode 100644 Documentation/devicetree/bindings/soc/mediatek/pericfg.txt
>
> diff --git a/Documentation/devicetree/bindings/soc/mediatek/pericfg.txt b/Documentation/devicetree/bindings/soc/mediatek/pericfg.txt
> new file mode 100644
> index 0000000..81d1aee
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soc/mediatek/pericfg.txt
> @@ -0,0 +1,19 @@
> +MediaTek pericfg Controller
> +
> +The pericfg controller contains miscellaneous registers for controlling
> +clocks, resets and bus settings.
> +
> +Required properties:
> +- compatible: must be one of:
> + mediatek,mt8135-pericfg
> + mediatek,mt8173-pericfg
> +- reg: Address range for the pericfg controller
> +
> +Example:
> +
> + pericfg: pericfg@10003000 {
> + #reset-cells = <1>;
> + #clock-cells = <1>;
> + compatible = "mediatek,mt8135-pericfg";
> + reg = <0 0x10003000 0 0x1000>;
> + };

This looks identical to the infracfg (same address too). Is that
deliberate?

Mark.

> diff --git a/drivers/soc/mediatek/Kconfig b/drivers/soc/mediatek/Kconfig
> index 3ad39fe..9bdb88f 100644
> --- a/drivers/soc/mediatek/Kconfig
> +++ b/drivers/soc/mediatek/Kconfig
> @@ -10,3 +10,13 @@ config MTK_INFRACFG
> contains several miscellaneous registers for clock, reset and bus
> settings. Say yes here if you want to run your kernel on one of these
> SoCs.
> +
> +config MTK_PERICFG
> + tristate "MediaTek pericfg controller support"
> + depends on ARCH_MEDIATEK || COMPILE_TEST
> + select REGMAP
> + help
> + The MediaTek pericfg controller found on MT8135 and MT8173 SoCs
> + contains several miscellaneous registers for clock, reset and bus
> + settings. Say yes here if you want to run your kernel on one of these
> + SoCs.
> diff --git a/drivers/soc/mediatek/Makefile b/drivers/soc/mediatek/Makefile
> index dbeb627..e67be7c 100644
> --- a/drivers/soc/mediatek/Makefile
> +++ b/drivers/soc/mediatek/Makefile
> @@ -1 +1,2 @@
> obj-$(CONFIG_MTK_INFRACFG) += mtk-infracfg.o
> +obj-$(CONFIG_MTK_PERICFG) += mtk-pericfg.o
> diff --git a/drivers/soc/mediatek/mtk-pericfg.c b/drivers/soc/mediatek/mtk-pericfg.c
> index b7ee902..aa9a7eb 100644
> --- a/drivers/soc/mediatek/mtk-pericfg.c
> +++ b/drivers/soc/mediatek/mtk-pericfg.c
> @@ -1,6 +1,5 @@
> /*
> * Copyright (c) 2014 MediaTek Inc.
> - * Author: Flora Fu <flora.fu@xxxxxxxxxxxx>
> *
> * This program is free software; you can redistribute it and/or modify
> * it under the terms of the GNU General Public License version 2 as
> --
> 2.1.4
>
>
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> linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
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>
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