On 03/19, Mars Cheng wrote:
> From: Kevin-CW Chen <kevin-cw.chen@xxxxxxxxxxxx>
>
> Add MT6797 clock support, include topckgen, apmixedsys, infracfg
> and subsystem clocks
>
> Signed-off-by: Kevin-CW Chen <kevin-cw.chen@xxxxxxxxxxxx>
> Signed-off-by: Mars Cheng <mars.cheng@xxxxxxxxxxxx>
> Tested-by: Matthias Brugger <matthias.bgg@xxxxxxxxx>
Acked-by: Stephen Boyd <sboyd@xxxxxxxxxxxxxx>
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@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
> + * 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.
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