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Date: Thu, 22 Sep 2016 13:58:43 +0000 From: Vadim Pasternak <vadimp@...lanox.com> To: Greg KH <gregkh@...uxfoundation.org> CC: "dvhart@...radead.org" <dvhart@...radead.org>, "davem@...emloft.net" <davem@...emloft.net>, "geert@...ux-m68k.org" <geert@...ux-m68k.org>, "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>, "kvalo@...eaurora.org" <kvalo@...eaurora.org>, "mchehab@...nel.org" <mchehab@...nel.org>, "linux@...ck-us.net" <linux@...ck-us.net>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "platform-driver-x86@...r.kernel.org" <platform-driver-x86@...r.kernel.org>, "jiri@...nulli.us" <jiri@...nulli.us> Subject: RE: [patch v1] drivers/platform/x86: introduce support for Mellanox hotplug driver > -----Original Message----- > From: Greg KH [mailto:gregkh@...uxfoundation.org] > Sent: Thursday, September 22, 2016 4:53 PM > To: Vadim Pasternak <vadimp@...lanox.com> > Cc: dvhart@...radead.org; davem@...emloft.net; geert@...ux-m68k.org; > akpm@...ux-foundation.org; kvalo@...eaurora.org; mchehab@...nel.org; > linux@...ck-us.net; linux-kernel@...r.kernel.org; platform-driver- > x86@...r.kernel.org; jiri@...nulli.us > Subject: Re: [patch v1] drivers/platform/x86: introduce support for Mellanox > hotplug driver > > On Thu, Sep 22, 2016 at 01:50:28PM +0000, Vadim Pasternak wrote: > > > > > > > -----Original Message----- > > > From: Greg KH [mailto:gregkh@...uxfoundation.org] > > > Sent: Thursday, September 22, 2016 4:43 PM > > > To: Vadim Pasternak <vadimp@...lanox.com> > > > Cc: dvhart@...radead.org; davem@...emloft.net; geert@...ux-m68k.org; > > > akpm@...ux-foundation.org; kvalo@...eaurora.org; mchehab@...nel.org; > > > linux@...ck-us.net; linux-kernel@...r.kernel.org; platform-driver- > > > x86@...r.kernel.org; jiri@...nulli.us > > > Subject: Re: [patch v1] drivers/platform/x86: introduce support for > > > Mellanox hotplug driver > > > > > > On Thu, Sep 22, 2016 at 01:01:46PM +0000, Vadim Pasternak wrote: > > > > > > > > > > > > > -----Original Message----- > > > > > From: Greg KH [mailto:gregkh@...uxfoundation.org] > > > > > Sent: Thursday, September 22, 2016 3:31 PM > > > > > To: Vadim Pasternak <vadimp@...lanox.com> > > > > > Cc: dvhart@...radead.org; davem@...emloft.net; > > > > > geert@...ux-m68k.org; akpm@...ux-foundation.org; > > > > > kvalo@...eaurora.org; mchehab@...nel.org; linux@...ck-us.net; > > > > > linux-kernel@...r.kernel.org; platform-driver- > > > > > x86@...r.kernel.org; jiri@...nulli.us > > > > > Subject: Re: [patch v1] drivers/platform/x86: introduce support > > > > > for Mellanox hotplug driver > > > > > > > > > > On Thu, Sep 22, 2016 at 01:14:27PM +0000, vadimp@...lanox.com > wrote: > > > > > > From: Vadim Pasternak <vadimp@...lanox.com> > > > > > > > > > > > > Enable system support for the Mellanox Technologies hotplug > > > > > > platform driver, which provides support for the next Mellanox > > > > > > basic > > > systems: > > > > > > "msx6710", "msx6720", "msb7700", "msn2700", "msx1410", > > > > > > "msn2410", "msb7800", "msn2740", "msn2100" and also various > > > > > > number of derivative systems from the above basic types. > > > > > > This driver handles hot-plug events for the power suppliers, > > > > > > power cables and fans for the above systems. > > > > > > > > > > > > The Kconfig currently controlling compilation of this code is: > > > > > > driver/platform/x86:config MLX_CPLD_PLATFORM > > > > > > tristate "Mellanox platform hotplug driver support" > > > > > > > > > > > > Signed-off-by: Vadim Pasternak <vadimp@...lanox.com> > > > > > > --- > > > > > > MAINTAINERS | 7 + > > > > > > drivers/platform/x86/Kconfig | 10 + > > > > > > drivers/platform/x86/Makefile | 1 + > > > > > > drivers/platform/x86/mlxcpld-hotplug.c | 543 > > > > > ++++++++++++++++++++++++++ > > > > > > include/linux/platform_data/mlxcpld-hotplug.h | 90 +++++ > > > > > > > > > > Why do you need a platform_data .h file for a stand-alone driver? > > > > > > > > > > > > > I have another module mlx-platform, which is reviewed now (I also > > > > got a number feedbacks from you on this matter). I want to > > > > activate mlxcpld-hotplug from this module. > > > > > > Ah. Hm, I thought "platform_data" was depreciated. Really, there > > > is no way to put this in acpi or device tree? This feels so 1990's... > > > > > > > I can't put in ACPI, since we don't have it. > > Regarding device tree - I know how to do it for ARM and PPC, but I didn't find > some good examples for x86. > > Maybe you can give me some reference for that? > > I have no idea, sorry :( I see several not so good " artificial" examples of device tree usage in x86. And folder include/linux/platform_data/ contains about thousand files.
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