From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Boyd Subject: Re: [PATCH v3 07/12] clk: mediatek: add clk support for MT6797 Date: Thu, 6 Apr 2017 13:08:52 -0700 Message-ID: <20170406200852.GQ7065@codeaurora.org> References: <1489937193-2953-1-git-send-email-mars.cheng@mediatek.com> <1489937193-2953-8-git-send-email-mars.cheng@mediatek.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1489937193-2953-8-git-send-email-mars.cheng-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Mars Cheng Cc: Matthias Brugger , Rob Herring , Marc Zyngier , Michael Turquette , CC Hwang , Loda Chou , Miles Chen , Jades Shih , Yingjoe Chen , My Chuang , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, wsd_upstream-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org, linux-clk-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Kevin-CW Chen List-Id: devicetree@vger.kernel.org On 03/19, Mars Cheng wrote: > From: Kevin-CW Chen > > Add MT6797 clock support, include topckgen, apmixedsys, infracfg > and subsystem clocks > > Signed-off-by: Kevin-CW Chen > Signed-off-by: Mars Cheng > Tested-by: Matthias Brugger Acked-by: Stephen Boyd 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 > + * > + * 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 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 > +#include > +#include > +#include > + > +#include "clk-mtk.h" > +#include "clk-gate.h" > + > +#include > + > +/* > + * 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 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html