Re: [PATCH v2 08/19] clk: mediatek: Add MT8188 imgsys clock support

["Garmin Chang (張家銘)" <Garmin.Chang@mediatek.com>]

On Thu, 2022-10-27 at 10:25 +0200, AngeloGioacchino Del Regno wrote:
> Il 24/10/22 11:42, Garmin.Chang ha scritto:
> > Add MT8188 imgsys clock controllers which provide clock gate
> > control for image IP blocks.
> > 
> > Signed-off-by: Garmin.Chang <Garmin.Chang@mediatek.com>
> > ---
> >   drivers/clk/mediatek/Makefile         |   2 +-
> >   drivers/clk/mediatek/clk-mt8188-img.c | 124
> > ++++++++++++++++++++++++++
> >   2 files changed, 125 insertions(+), 1 deletion(-)
> >   create mode 100644 drivers/clk/mediatek/clk-mt8188-img.c
> > 
> > diff --git a/drivers/clk/mediatek/Makefile
> > b/drivers/clk/mediatek/Makefile
> > index bd0a2aa5b6fa..242b49bafa9e 100644
> > --- a/drivers/clk/mediatek/Makefile
> > +++ b/drivers/clk/mediatek/Makefile
> > @@ -84,7 +84,7 @@ obj-$(CONFIG_COMMON_CLK_MT8186) += clk-mt8186-
> > mcu.o clk-mt8186-topckgen.o clk-mt
> >   				   clk-mt8186-cam.o clk-mt8186-mdp.o
> > clk-mt8186-ipe.o
> >   obj-$(CONFIG_COMMON_CLK_MT8188) += clk-mt8188-apmixedsys.o clk-
> > mt8188-topckgen.o \
> >   				   clk-mt8188-peri_ao.o clk-mt8188-
> > infra_ao.o \
> > -				   clk-mt8188-cam.o clk-mt8188-ccu.o
> > +				   clk-mt8188-cam.o clk-mt8188-ccu.o
> > clk-mt8188-img.o
> >   obj-$(CONFIG_COMMON_CLK_MT8192) += clk-mt8192.o
> >   obj-$(CONFIG_COMMON_CLK_MT8192_AUDSYS) += clk-mt8192-aud.o
> >   obj-$(CONFIG_COMMON_CLK_MT8192_CAMSYS) += clk-mt8192-cam.o
> > diff --git a/drivers/clk/mediatek/clk-mt8188-img.c
> > b/drivers/clk/mediatek/clk-mt8188-img.c
> > new file mode 100644
> > index 000000000000..00f3bbf4d502
> > --- /dev/null
> > +++ b/drivers/clk/mediatek/clk-mt8188-img.c
> > @@ -0,0 +1,124 @@
> > +// SPDX-License-Identifier: GPL-2.0-only
> > +//
> > +// Copyright (c) 2022 MediaTek Inc.
> > +// Author: Garmin Chang <garmin.chang@mediatek.com>
> > +
> > +#include <linux/clk-provider.h>
> > +#include <linux/platform_device.h>
> > +#include <dt-bindings/clock/mediatek,mt8188-clk.h>
> > +
> > +#include "clk-gate.h"
> > +#include "clk-mtk.h"
> > +
> > +static const struct mtk_gate_regs imgsys_cg_regs = {
> > +	.set_ofs = 0x4,
> > +	.clr_ofs = 0x8,
> > +	.sta_ofs = 0x0,
> > +};
> > +
> > +#define GATE_IMGSYS(_id, _name, _parent, _shift)			
> > \
> > +	GATE_MTK(_id, _name, _parent, &imgsys_cg_regs, _shift,
> > &mtk_clk_gate_ops_setclr)
> > +
> > +static const struct mtk_gate imgsys_main_clks[] = {
> > +	GATE_IMGSYS(CLK_IMGSYS_MAIN_LARB9, "imgsys_main_larb9",
> > "top_img", 0),
> > +	GATE_IMGSYS(CLK_IMGSYS_MAIN_TRAW0, "imgsys_main_traw0",
> > "top_img", 1),
> > +	GATE_IMGSYS(CLK_IMGSYS_MAIN_TRAW1, "imgsys_main_traw1",
> > "top_img", 2),
> > +	GATE_IMGSYS(CLK_IMGSYS_MAIN_VCORE_GALS,
> > "imgsys_main_vcore_gals", "top_img", 3),
> > +	GATE_IMGSYS(CLK_IMGSYS_MAIN_DIP0, "imgsys_main_dip0",
> > "top_img", 8),
> > +	GATE_IMGSYS(CLK_IMGSYS_MAIN_WPE0, "imgsys_main_wpe0",
> > "top_img", 9),
> > +	GATE_IMGSYS(CLK_IMGSYS_MAIN_IPE, "imgsys_main_ipe", "top_img",
> > 10),
> > +	GATE_IMGSYS(CLK_IMGSYS_MAIN_WPE1, "imgsys_main_wpe1",
> > "top_img", 12),
> > +	GATE_IMGSYS(CLK_IMGSYS_MAIN_WPE2, "imgsys_main_wpe2",
> > "top_img", 13),
> > +	GATE_IMGSYS(CLK_IMGSYS_MAIN_GALS, "imgsys_main_gals",
> > "top_img", 31),
> > +};
> > +
> > +static const struct mtk_gate imgsys_wpe1_clks[] = {
> > +	GATE_IMGSYS(CLK_IMGSYS_WPE1_LARB11, "imgsys_wpe1_larb11",
> > "top_img", 0),
> > +	GATE_IMGSYS(CLK_IMGSYS_WPE1, "imgsys_wpe1", "top_img", 1),
> > +};
> > +
> > +static const struct mtk_gate imgsys_wpe2_clks[] = {
> > +	GATE_IMGSYS(CLK_IMGSYS_WPE2_LARB11, "imgsys_wpe2_larb11",
> > "top_img", 0),
> > +	GATE_IMGSYS(CLK_IMGSYS_WPE2, "imgsys_wpe2", "top_img", 1),
> > +};
> > +
> > +static const struct mtk_gate imgsys_wpe3_clks[] = {
> > +	GATE_IMGSYS(CLK_IMGSYS_WPE3_LARB11, "imgsys_wpe3_larb11",
> > "top_img", 0),
> > +	GATE_IMGSYS(CLK_IMGSYS_WPE3, "imgsys_wpe3", "top_img", 1),
> > +};
> > +
> > +static const struct mtk_gate imgsys1_dip_top_clks[] = {
> > +	GATE_IMGSYS(CLK_IMGSYS1_DIP_TOP_LARB10, "imgsys1_dip_larb10",
> > "top_img", 0),
> > +	GATE_IMGSYS(CLK_IMGSYS1_DIP_TOP_DIP_TOP, "imgsys1_dip_dip_top",
> > "top_img", 1),
> > +};
> > +
> > +static const struct mtk_gate imgsys1_dip_nr_clks[] = {
> > +	GATE_IMGSYS(CLK_IMGSYS1_DIP_NR_LARB15, "imgsys1_dip_nr_larb15",
> > "top_img", 0),
> > +	GATE_IMGSYS(CLK_IMGSYS1_DIP_NR_DIP_NR, "imgsys1_dip_nr_dip_nr",
> > "top_img", 1),
> > +};
> > +
> > +static const struct mtk_clk_desc imgsys_main_desc = {
> > +	.clks = imgsys_main_clks,
> > +	.num_clks = ARRAY_SIZE(imgsys_main_clks),
> > +};
> > +
> > +static const struct mtk_clk_desc imgsys_wpe1_desc = {
> > +	.clks = imgsys_wpe1_clks,
> > +	.num_clks = ARRAY_SIZE(imgsys_wpe1_clks),
> > +};
> > +
> > +static const struct mtk_clk_desc imgsys_wpe2_desc = {
> > +	.clks = imgsys_wpe2_clks,
> > +	.num_clks = ARRAY_SIZE(imgsys_wpe2_clks),
> > +};
> > +
> > +static const struct mtk_clk_desc imgsys_wpe3_desc = {
> > +	.clks = imgsys_wpe3_clks,
> > +	.num_clks = ARRAY_SIZE(imgsys_wpe3_clks),
> > +};
> > +
> > +static const struct mtk_clk_desc imgsys1_dip_top_desc = {
> > +	.clks = imgsys1_dip_top_clks,
> > +	.num_clks = ARRAY_SIZE(imgsys1_dip_top_clks),
> > +};
> > +
> > +static const struct mtk_clk_desc imgsys1_dip_nr_desc = {
> > +	.clks = imgsys1_dip_nr_clks,
> > +	.num_clks = ARRAY_SIZE(imgsys1_dip_nr_clks),
> > +};
> > +
> > +static const struct of_device_id of_match_clk_mt8188_imgsys_main[]
> > = {
> > +	{
> > +		.compatible = "mediatek,mt8188-imgsys",
> > +		.data = &imgsys_main_desc,
> > +	}, {
> > +		.compatible = "mediatek,mt8188-imgsys_wpe1",
> 
> I know that this was done in other clock drivers as well, but can we
> please
> stop using underscores in devicetree compatibles?
> That makes them look more consistent with the rest of the DT.
> 
> "mediatek,mt8188-imgsys-wpe1", as an example, would look a bit
> better.
> 
> P.S.: Please do the same on all of the other drivers that you are
> introducing
>        with this series.
> 
> Thanks,
> Angelo

Thank you for your suggestion.
Ok, I'll check all drivers for this underscores problem and fix them in
V3.

Thanks,
Best Regards,
Garmin