linux-kernel - Re: [PATCH v2 7/7] clk: mediatek: Add MediaTek Helio X10 MT6795 clock drivers

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Message-ID: <20220519045340.11198-1-miles.chen@mediatek.com>
Date:   Thu, 19 May 2022 12:53:40 +0800
From:   Miles Chen <miles.chen@...iatek.com>
To:     <angelogioacchino.delregno@...labora.com>
CC:     <bgolaszewski@...libre.com>, <chun-jie.chen@...iatek.com>,
        <ck.hu@...iatek.com>, <devicetree@...r.kernel.org>,
        <fparent@...libre.com>, <ikjn@...omium.org>,
        <jason-jh.lin@...iatek.com>, <kernel@...labora.com>,
        <konrad.dybcio@...ainline.org>,
        <krzysztof.kozlowski+dt@...aro.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-clk@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-mediatek@...ts.infradead.org>,
        <marijn.suijten@...ainline.org>, <martin.botka@...ainline.org>,
        <matthias.bgg@...il.com>, <miles.chen@...iatek.com>,
        <mturquette@...libre.com>, <p.zabel@...gutronix.de>,
        <paul.bouchara@...ainline.org>, <phone-devel@...r.kernel.org>,
        <rex-bc.chen@...iatek.com>, <robh+dt@...nel.org>,
        <sam.shih@...iatek.com>, <sboyd@...nel.org>,
        <tinghan.shen@...iatek.com>, <weiyi.lu@...iatek.com>,
        <wenst@...omium.org>, <y.oudjana@...tonmail.com>,
        <~postmarketos/upstreaming@...ts.sr.ht>
Subject: Re: [PATCH v2 7/7] clk: mediatek: Add MediaTek Helio X10 MT6795 clock drivers


Hi Angelo,

>Add the clock drivers for the entire clock tree of MediaTek Helio X10
>MT6795, including system clocks (apmixedsys, infracfg, pericfg, topckgen)
>and multimedia clocks (mmsys, mfg, vdecsys, vencsys).
>
>Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
>---
> drivers/clk/mediatek/Kconfig                 |  37 ++
> drivers/clk/mediatek/Makefile                |   6 +
> drivers/clk/mediatek/clk-mt6795-apmixedsys.c | 157 +++++
> drivers/clk/mediatek/clk-mt6795-infracfg.c   | 148 +++++
> drivers/clk/mediatek/clk-mt6795-mfg.c        |  50 ++
> drivers/clk/mediatek/clk-mt6795-mm.c         | 106 ++++
> drivers/clk/mediatek/clk-mt6795-pericfg.c    | 160 +++++
> drivers/clk/mediatek/clk-mt6795-topckgen.c   | 611 +++++++++++++++++++
> drivers/clk/mediatek/clk-mt6795-vdecsys.c    |  55 ++
> drivers/clk/mediatek/clk-mt6795-vencsys.c    |  50 ++
> 10 files changed, 1380 insertions(+)
> create mode 100644 drivers/clk/mediatek/clk-mt6795-apmixedsys.c
> create mode 100644 drivers/clk/mediatek/clk-mt6795-infracfg.c
> create mode 100644 drivers/clk/mediatek/clk-mt6795-mfg.c
> create mode 100644 drivers/clk/mediatek/clk-mt6795-mm.c
> create mode 100644 drivers/clk/mediatek/clk-mt6795-pericfg.c
> create mode 100644 drivers/clk/mediatek/clk-mt6795-topckgen.c
> create mode 100644 drivers/clk/mediatek/clk-mt6795-vdecsys.c
> create mode 100644 drivers/clk/mediatek/clk-mt6795-vencsys.c
>
>diff --git a/drivers/clk/mediatek/Kconfig b/drivers/clk/mediatek/Kconfig
>index d5936cfb3bee..da8142dff3c3 100644
>--- a/drivers/clk/mediatek/Kconfig
>+++ b/drivers/clk/mediatek/Kconfig
>@@ -259,6 +259,43 @@ config COMMON_CLK_MT6779_AUDSYS
> 	help
> 	  This driver supports Mediatek MT6779 audsys clocks.
> 
>+config COMMON_CLK_MT6795
>+	tristate "Clock driver for MediaTek MT6795"
>+	depends on ARCH_MEDIATEK || COMPILE_TEST
>+	select COMMON_CLK_MEDIATEK
>+	default ARCH_MEDIATEK
>+	help
>+	  This driver supports MediaTek MT6795 basic clocks and clocks
>+	  required for various peripherals found on MediaTek.

Thanks for doing this, I was wondering if we can use only COMMON_CLK_MT6795 to build all
clk-mt6795-*? like CONFIG_COMMON_CLK_MT8195 style:

obj-$(CONFIG_COMMON_CLK_MT8195) += clk-mt8195-apmixedsys.o clk-mt8195-topckgen.o \
				   clk-mt8195-peri_ao.o clk-mt8195-infra_ao.o \
				   clk-mt8195-cam.o clk-mt8195-ccu.o clk-mt8195-img.o \
				   clk-mt8195-ipe.o clk-mt8195-mfg.o clk-mt8195-scp_adsp.o \
				   clk-mt8195-vdec.o clk-mt8195-vdo0.o clk-mt8195-vdo1.o \
				   clk-mt8195-venc.o clk-mt8195-vpp0.o clk-mt8195-vpp1.o \
				   clk-mt8195-wpe.o clk-mt8195-imp_iic_wrap.o \
				   clk-mt8195-apusys_pll.o

So we do not have to keep other COMMON_CLK_MT6795_* configs.


thanks,
Miles

>+
>+config COMMON_CLK_MT6795_MFGCFG
>+	tristate "Clock driver for MediaTek MT6795 mfgcfg"
>+	depends on COMMON_CLK_MT6795
>+	default COMMON_CLK_MT6795
>+	help
>+	  This driver supports MediaTek MT6795 mfgcfg clocks.
>+
>+config COMMON_CLK_MT6795_MMSYS
>+       tristate "Clock driver for MediaTek MT6795 mmsys"
>+       depends on COMMON_CLK_MT6795
>+	default COMMON_CLK_MT6795
>+       help
>+         This driver supports MediaTek MT6795 mmsys clocks.
>+
>+config COMMON_CLK_MT6795_VDECSYS
>+	tristate "Clock driver for MediaTek MT6795 VDECSYS"
>+	depends on COMMON_CLK_MT6795
>+	default COMMON_CLK_MT6795
>+	help
>+	  This driver supports MediaTek MT6795 vdecsys clocks.
>+
>+config COMMON_CLK_MT6795_VENCSYS
>+	tristate "Clock driver for MediaTek MT6795 VENCSYS"
>+	depends on COMMON_CLK_MT6795
>+	default COMMON_CLK_MT6795
>+	help
>+	  This driver supports MediaTek MT6795 vencsys clocks.
>+
> config COMMON_CLK_MT6797
> 	bool "Clock driver for MediaTek MT6797"
> 	depends on (ARCH_MEDIATEK && ARM64) || COMPILE_TEST
>diff --git a/drivers/clk/mediatek/Makefile b/drivers/clk/mediatek/Makefile
>index caf2ce93d666..57f0bf90e934 100644
>--- a/drivers/clk/mediatek/Makefile
>+++ b/drivers/clk/mediatek/Makefile
>@@ -17,6 +17,12 @@ obj-$(CONFIG_COMMON_CLK_MT6779_VDECSYS) += clk-mt6779-vdec.o
> obj-$(CONFIG_COMMON_CLK_MT6779_VENCSYS) += clk-mt6779-venc.o
> obj-$(CONFIG_COMMON_CLK_MT6779_MFGCFG) += clk-mt6779-mfg.o
> obj-$(CONFIG_COMMON_CLK_MT6779_AUDSYS) += clk-mt6779-aud.o
>+obj-$(CONFIG_COMMON_CLK_MT6795) += clk-mt6795-apmixedsys.o clk-mt6795-infracfg.o \
>+				   clk-mt6795-pericfg.o clk-mt6795-topckgen.o
>+obj-$(CONFIG_COMMON_CLK_MT6795_MFGCFG) += clk-mt6795-mfg.o
>+obj-$(CONFIG_COMMON_CLK_MT6795_MMSYS) += clk-mt6795-mm.o
>+obj-$(CONFIG_COMMON_CLK_MT6795_VDECSYS) += clk-mt6795-vdecsys.o
>+obj-$(CONFIG_COMMON_CLK_MT6795_VENCSYS) += clk-mt6795-vencsys.o



> obj-$(CONFIG_COMMON_CLK_MT6797) += clk-mt6797.o
> obj-$(CONFIG_COMMON_CLK_MT6797_IMGSYS) += clk-mt6797-img.o
> obj-$(CONFIG_COMMON_CLK_MT6797_MMSYS) += clk-mt6797-mm.o
>diff --git a/drivers/clk/mediatek/clk-mt6795-apmixedsys.c b/drivers/clk/mediatek/clk-mt6795-apmixedsys.c
>new file mode 100644
>index 000000000000..766e83765cbb
>--- /dev/null
>+++ b/drivers/clk/mediatek/clk-mt6795-apmixedsys.c
>@@ -0,0 +1,157 @@
>+// SPDX-License-Identifier: GPL-2.0-only
>+/*