From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752824AbcHQKTq (ORCPT ); Wed, 17 Aug 2016 06:19:46 -0400 Received: from gloria.sntech.de ([95.129.55.99]:58496 "EHLO gloria.sntech.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750799AbcHQKTo (ORCPT ); Wed, 17 Aug 2016 06:19:44 -0400 From: Heiko =?ISO-8859-1?Q?St=FCbner?= To: Guenter Roeck Cc: Frank Wang , kishon@ti.com, dianders@chromium.org, jwerner@chromium.org, robh+dt@kernel.org, pawel.moll@arm.com, mark.rutland@arm.com, ijc+devicetree@hellion.org.uk, galak@codeaurora.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-usb@vger.kernel.org, linux-rockchip@lists.infradead.org, xzy.xu@rock-chips.com, kever.yang@rock-chips.com, huangtao@rock-chips.com, william.wu@rock-chips.com, daniel.meng@rock-chips.com Subject: Re: [PATCH] phy: rockchip-inno-usb2: add COMMON_CLK dependency Date: Wed, 17 Aug 2016 12:19:20 +0200 Message-ID: <1923063.8aq8klSAh0@diego> User-Agent: KMail/4.14.10 (Linux/4.6.0-1-amd64; KDE/4.14.22; x86_64; ; ) In-Reply-To: <20160816163150.GA28201@roeck-us.net> References: <1471327320-92871-1-git-send-email-frank.wang@rock-chips.com> <1471327320-92871-2-git-send-email-frank.wang@rock-chips.com> <20160816163150.GA28201@roeck-us.net> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Am Dienstag, 16. August 2016, 09:31:50 schrieb Guenter Roeck: > On Tue, Aug 16, 2016 at 02:02:00PM +0800, Frank Wang wrote: > > On kernel builds without COMMON_CLK, the newly added rockchip-inno-usb2 > > driver fails to build: > > > > drivers/phy/phy-rockchip-inno-usb2.c:124:16: error: field 'clk480m_hw' > > has incomplete type > > > > struct clk_hw clk480m_hw; > > > > In file included from include/linux/clk.h:16:0 > > > > from drivers/phy/phy-rockchip-inno-usb2.c:17: > > include/linux/kernel.h:831:48: error: initialization from incompatible > > pointer type [-Werror=incompatible-pointer-types] > > > > const typeof( ((type *)0)->member ) *__mptr = (ptr); \ > > > > ... ... > > > > Signed-off-by: Frank Wang > > --- > > > > drivers/phy/Kconfig | 1 + > > 1 file changed, 1 insertion(+) > > > > diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig > > index f9bf981..c6d57e5 100644 > > --- a/drivers/phy/Kconfig > > +++ b/drivers/phy/Kconfig > > @@ -370,6 +370,7 @@ config PHY_ROCKCHIP_USB > > > > config PHY_ROCKCHIP_INNO_USB2 > > > > tristate "Rockchip INNO USB2PHY Driver" > > depends on (ARCH_ROCKCHIP || COMPILE_TEST) && OF > > > > + depends on COMMON_CLK > > Wonder what is preferred here. I find 33 "select COMMON_CLK" and > 18 "depends on COMMON_CLK". In drivers/ I count 12 select COMMON_CLK vs. 37 depends on COMMON_CLK Do I need new glasses? :-) With MMC_SDHCI_OF_ARASAN being the only one of all of them we're using on Rockchip platforms. I vaguely remember depends being preferred over select in general, so you don't enable large parts by accident or cause some select chains - but I may be wrong. > Either case > > Reviewed-by: Guenter Roeck for me as well: Reviewed-by: Heiko Stuebner > > > select GENERIC_PHY > > help > > > > Support for Rockchip USB2.0 PHY with Innosilicon IP block.