Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1618318 > unrolled thread

Re: [PATCH v3 07/12] clk: mediatek: add clk support for MT6797

Back to article view | Back to linux.kernel

This discussion starts older than the indexed window; earlier articles aren't shown. The article labeled Started by below is the oldest one visible, not the original post.

Contents

  Re: [PATCH v3 07/12] clk: mediatek: add clk support for MT6797 Stephen Boyd <sboyd@codeaurora.org> - 2017-04-06 22:20 +0200
    Re: [PATCH v3 07/12] clk: mediatek: add clk support for MT6797 Mars Cheng <mars.cheng@mediatek.com> - 2017-04-07 01:40 +0200
      Re: [PATCH v3 07/12] clk: mediatek: add clk support for MT6797 Stephen Boyd <sboyd@codeaurora.org> - 2017-04-07 21:50 +0200

#1618318 — Re: [PATCH v3 07/12] clk: mediatek: add clk support for MT6797

On 03/19, Mars Cheng wrote:
> From: Kevin-CW Chen <kevin-cw.chen@mediatek.com>
> 
> Add MT6797 clock support, include topckgen, apmixedsys, infracfg
> and subsystem clocks
> 
> Signed-off-by: Kevin-CW Chen <kevin-cw.chen@mediatek.com>
> Signed-off-by: Mars Cheng <mars.cheng@mediatek.com>
> Tested-by: Matthias Brugger <matthias.bgg@gmail.com>

Acked-by: Stephen Boyd <sboyd@codeaurora.org>

Looks fine to me except for the one comment below. Did you want
me to merge it into clk tree?

> diff --git a/drivers/clk/mediatek/clk-mt6797.c b/drivers/clk/mediatek/clk-mt6797.c
> new file mode 100644
> index 0000000..7ebb7f1
> --- /dev/null
> +++ b/drivers/clk/mediatek/clk-mt6797.c
> @@ -0,0 +1,716 @@
> +/*
> + * Copyright (c) 2016 MediaTek Inc.
> + * Author: Kevin Chen <kevin-cw.chen@mediatek.com>
> + *
> + * 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
> + * published by the Free Software Foundation.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + * GNU General Public License for more details.
> + */
> +
> +#include <linux/clk.h>

Is this include used? Please include clk-provider if the file is
a clk driver. Same comment applies to other files in this patch.

> +#include <linux/of.h>
> +#include <linux/of_address.h>
> +#include <linux/of_device.h>
> +#include <linux/platform_device.h>
> +
> +#include "clk-mtk.h"
> +#include "clk-gate.h"
> +
> +#include <dt-bindings/clock/mt6797-clk.h>
> +
> +/*
> + * For some clocks, we don't care what their actual rates are. And these
> + * clocks may change their rate on different products or different scenarios.
> + * So we model these clocks' rate as 0, to denote it's not an actual rate.
> + */
> +
> +static DEFINE_SPINLOCK(mt6797_clk_lock);
> +
> +static const struct mtk_fixed_factor top_fixed_divs[] = {
> +	FACTOR(CLK_TOP_SYSPLL_CK, "syspll_ck", "mainpll", 1, 1),
> +	FACTOR(CLK_TOP_SYSPLL_D2, "syspll_d2", "mainpll", 1, 2),
> +	FACTOR(CLK_TOP_SYSPLL1_D2, "syspll1_d2", "syspll_d2", 1, 2),
[...]
> +	clk_init = of_device_get_match_data(&pdev->dev);
> +	if (!clk_init)
> +		return -EINVAL;
> +
> +	r = clk_init(pdev);
> +	if (r)
> +		dev_err(&pdev->dev,
> +			"could not register clock provider: %s: %d\n",
> +			pdev->name, r);
> +
> +	return r;
> +}
> +
> +static struct platform_driver clk_mt6797_drv = {
> +	.probe = clk_mt6797_probe,
> +	.driver = {
> +		.name = "clk-mt6797",
> +		.owner = THIS_MODULE,

This can be removed, platform_driver_register() does it already.

> +		.of_match_table = of_match_clk_mt6797,
> +	},
> +};
> +
> +static int __init clk_mt6797_init(void)
> +{
> +	return platform_driver_register(&clk_mt6797_drv);
> +}
> +
> +arch_initcall(clk_mt6797_init);
> diff --git a/include/dt-bindings/clock/mt6797-clk.h b/include/dt-bindings/clock/mt6797-clk.h
> new file mode 100644
> index 0000000..e48aa47
> --- /dev/null
> +++ b/include/dt-bindings/clock/mt6797-clk.h
> @@ -0,0 +1,281 @@

I think arm-soc folks don't want us merging whole drivers into
the DT branch anymore, so please split off the dt-bindings header
into a different patch that we can apply directly. Then we can
layer the driver on top and just send off the header to arm-soc
via a stable clk branch.

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

[toc] | [next] | [standalone]

#1618406

Hi Stephen

On Thu, 2017-04-06 at 13:08 -0700, Stephen Boyd wrote:
> On 03/19, Mars Cheng wrote:
> > From: Kevin-CW Chen <kevin-cw.chen@mediatek.com>
> > 
> > Add MT6797 clock support, include topckgen, apmixedsys, infracfg
> > and subsystem clocks
> > 
> > Signed-off-by: Kevin-CW Chen <kevin-cw.chen@mediatek.com>
> > Signed-off-by: Mars Cheng <mars.cheng@mediatek.com>
> > Tested-by: Matthias Brugger <matthias.bgg@gmail.com>
> 
> Acked-by: Stephen Boyd <sboyd@codeaurora.org>
> 
> Looks fine to me except for the one comment below. Did you want
> me to merge it into clk tree?

To prevent another run, I really like you to merge it.
However, I also want to make the patch set more cleaner.
So I will send v4 later. :-)  

> 
> > diff --git a/drivers/clk/mediatek/clk-mt6797.c b/drivers/clk/mediatek/clk-mt6797.c
> > new file mode 100644
> > index 0000000..7ebb7f1
> > --- /dev/null
> > +++ b/drivers/clk/mediatek/clk-mt6797.c
> > @@ -0,0 +1,716 @@
> > +/*
> > + * Copyright (c) 2016 MediaTek Inc.
> > + * Author: Kevin Chen <kevin-cw.chen@mediatek.com>
> > + *
> > + * 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
> > + * published by the Free Software Foundation.
> > + *
> > + * This program is distributed in the hope that it will be useful,
> > + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> > + * GNU General Public License for more details.
> > + */
> > +
> > +#include <linux/clk.h>
> 
> Is this include used? Please include clk-provider if the file is
> a clk driver. Same comment applies to other files in this patch.
> 

Should be removed. Will be done in v4.

> > +#include <linux/of.h>
> > +#include <linux/of_address.h>
> > +#include <linux/of_device.h>
> > +#include <linux/platform_device.h>
> > +
> > +#include "clk-mtk.h"
> > +#include "clk-gate.h"
> > +
> > +#include <dt-bindings/clock/mt6797-clk.h>
> > +
> > +/*
> > + * For some clocks, we don't care what their actual rates are. And these
> > + * clocks may change their rate on different products or different scenarios.
> > + * So we model these clocks' rate as 0, to denote it's not an actual rate.
> > + */
> > +
> > +static DEFINE_SPINLOCK(mt6797_clk_lock);
> > +
> > +static const struct mtk_fixed_factor top_fixed_divs[] = {
> > +	FACTOR(CLK_TOP_SYSPLL_CK, "syspll_ck", "mainpll", 1, 1),
> > +	FACTOR(CLK_TOP_SYSPLL_D2, "syspll_d2", "mainpll", 1, 2),
> > +	FACTOR(CLK_TOP_SYSPLL1_D2, "syspll1_d2", "syspll_d2", 1, 2),
> [...]
> > +	clk_init = of_device_get_match_data(&pdev->dev);
> > +	if (!clk_init)
> > +		return -EINVAL;
> > +
> > +	r = clk_init(pdev);
> > +	if (r)
> > +		dev_err(&pdev->dev,
> > +			"could not register clock provider: %s: %d\n",
> > +			pdev->name, r);
> > +
> > +	return r;
> > +}
> > +
> > +static struct platform_driver clk_mt6797_drv = {
> > +	.probe = clk_mt6797_probe,
> > +	.driver = {
> > +		.name = "clk-mt6797",
> > +		.owner = THIS_MODULE,
> 
> This can be removed, platform_driver_register() does it already.
> 

got it, will be removed.

> > +		.of_match_table = of_match_clk_mt6797,
> > +	},
> > +};
> > +
> > +static int __init clk_mt6797_init(void)
> > +{
> > +	return platform_driver_register(&clk_mt6797_drv);
> > +}
> > +
> > +arch_initcall(clk_mt6797_init);
> > diff --git a/include/dt-bindings/clock/mt6797-clk.h b/include/dt-bindings/clock/mt6797-clk.h
> > new file mode 100644
> > index 0000000..e48aa47
> > --- /dev/null
> > +++ b/include/dt-bindings/clock/mt6797-clk.h
> > @@ -0,0 +1,281 @@
> 
> I think arm-soc folks don't want us merging whole drivers into
> the DT branch anymore, so please split off the dt-bindings header
> into a different patch that we can apply directly. Then we can
> layer the driver on top and just send off the header to arm-soc
> via a stable clk branch.
> 

Got it. Will be done in v4.

Thanks for your review.

[toc] | [prev] | [next] | [standalone]

#1619061

On 04/07, Mars Cheng wrote:
> Hi Stephen
> 
> On Thu, 2017-04-06 at 13:08 -0700, Stephen Boyd wrote:
> > On 03/19, Mars Cheng wrote:
> > > From: Kevin-CW Chen <kevin-cw.chen@mediatek.com>
> > > 
> > > Add MT6797 clock support, include topckgen, apmixedsys, infracfg
> > > and subsystem clocks
> > > 
> > > Signed-off-by: Kevin-CW Chen <kevin-cw.chen@mediatek.com>
> > > Signed-off-by: Mars Cheng <mars.cheng@mediatek.com>
> > > Tested-by: Matthias Brugger <matthias.bgg@gmail.com>
> > 
> > Acked-by: Stephen Boyd <sboyd@codeaurora.org>
> > 
> > Looks fine to me except for the one comment below. Did you want
> > me to merge it into clk tree?
> 
> To prevent another run, I really like you to merge it.
> However, I also want to make the patch set more cleaner.
> So I will send v4 later. :-)  

Ok I'll merge v4 patch then.

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

[toc] | [prev] | [standalone]

Back to top | Article view | linux.kernel

csiph-web