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From: Saravana Kannan <skannan@codeaurora.org>
To: Rob Herring <robherring2@gmail.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>,
	Nicolas Pitre <nicolas.pitre@linaro.org>,
	Paul Walmsley <paul@pwsan.com>,
	Russell King <linux@arm.linux.org.uk>,
	Linus Walleij <linus.walleij@stericsson.com>,
	Arnd Bergmann <arnd@arndb.de>,
	patches@linaro.org, Stephen Boyd <sboyd@codeaurora.org>,
	Mark Brown <broonie@opensource.wolfsonmicro.com>,
	Magnus Damm <magnus.damm@gmail.com>,
	linux-kernel@vger.kernel.org,
	Rob Herring <rob.herring@calxeda.com>,
	linaro-dev@lists.linaro.org,
	Jeremy Kerr <jeremy.kerr@canonical.com>,
	linux-omap@vger.kernel.org, Thomas Gleixner <tglx@linutronix.de>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v7 1/3] Documentation: common clk API
Date: Fri, 16 Mar 2012 20:38:54 -0700	[thread overview]
Message-ID: <4F64074E.2070903@codeaurora.org> (raw)
In-Reply-To: <4F63E0D3.3060106@gmail.com>

On 03/16/2012 05:54 PM, Rob Herring wrote:
> On 03/16/2012 06:47 PM, Sascha Hauer wrote:
>> Hi Paul,
>>
>> On Fri, Mar 16, 2012 at 04:21:17PM -0600, Paul Walmsley wrote:
>>> Hi
>>>
>>> On Fri, 16 Mar 2012, Arnd Bergmann wrote:
>>>
>>>
>>> If the common clock code is to go upstream now, it should be marked as
>>> experimental.
>>
>> No, please don't do this. This effectively marks the architectures using
>> the generic clock framework experimental. We can mark drivers as 'you
>> have been warned', but marking an architecture as experimental is the
>> wrong sign for both its users and people willing to adopt the framework.
>> Also we get this:
>>
>> warning: (ARCH_MX1&&  MACH_MX21&&  ARCH_MX25&&  MACH_MX27) selects COMMON_CLK which has unmet direct dependencies (EXPERIMENTAL)
>>
>> (and no, I don't want to support to clock frameworks in parallel)
>>
>
> +1
>
> For simple users at least, the api is perfectly adequate and it is not
> experimental (unless new means experimental).
>

+1 - not experimental please.

While I agree with Mike and Paul that there is room for a lot of 
improvements to the clock APIs, I think the existing APIs in this patch 
series can become macro wrappers around any new APIs improvements we add 
in the future.

We should have really done that for the 
clk_prepare_enable/unprepare_disable(), but it should certainly be 
doable for future API additions now that we have the atomic/non-atomic 
differentiation out of the way.

Thanks,
Saravana


-- 
Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.

WARNING: multiple messages have this Message-ID (diff)
From: Saravana Kannan <skannan@codeaurora.org>
To: Rob Herring <robherring2@gmail.com>
Cc: Nicolas Pitre <nicolas.pitre@linaro.org>,
	Paul Walmsley <paul@pwsan.com>,
	Russell King <linux@arm.linux.org.uk>,
	Linus Walleij <linus.walleij@stericsson.com>,
	Arnd Bergmann <arnd@arndb.de>,
	patches@linaro.org, Magnus Damm <magnus.damm@gmail.com>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Mark Brown <broonie@opensource.wolfsonmicro.com>,
	Stephen Boyd <sboyd@codeaurora.org>,
	linux-kernel@vger.kernel.org,
	Rob Herring <rob.herring@calxeda.com>,
	linaro-dev@lists.linaro.org,
	Jeremy Kerr <jeremy.kerr@canonical.com>,
	linux-omap@vger.kernel.org, Thomas Gleixner <tglx@linutronix.de>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v7 1/3] Documentation: common clk API
Date: Fri, 16 Mar 2012 20:38:54 -0700	[thread overview]
Message-ID: <4F64074E.2070903@codeaurora.org> (raw)
In-Reply-To: <4F63E0D3.3060106@gmail.com>

On 03/16/2012 05:54 PM, Rob Herring wrote:
> On 03/16/2012 06:47 PM, Sascha Hauer wrote:
>> Hi Paul,
>>
>> On Fri, Mar 16, 2012 at 04:21:17PM -0600, Paul Walmsley wrote:
>>> Hi
>>>
>>> On Fri, 16 Mar 2012, Arnd Bergmann wrote:
>>>
>>>
>>> If the common clock code is to go upstream now, it should be marked as
>>> experimental.
>>
>> No, please don't do this. This effectively marks the architectures using
>> the generic clock framework experimental. We can mark drivers as 'you
>> have been warned', but marking an architecture as experimental is the
>> wrong sign for both its users and people willing to adopt the framework.
>> Also we get this:
>>
>> warning: (ARCH_MX1&&  MACH_MX21&&  ARCH_MX25&&  MACH_MX27) selects COMMON_CLK which has unmet direct dependencies (EXPERIMENTAL)
>>
>> (and no, I don't want to support to clock frameworks in parallel)
>>
>
> +1
>
> For simple users at least, the api is perfectly adequate and it is not
> experimental (unless new means experimental).
>

+1 - not experimental please.

While I agree with Mike and Paul that there is room for a lot of 
improvements to the clock APIs, I think the existing APIs in this patch 
series can become macro wrappers around any new APIs improvements we add 
in the future.

We should have really done that for the 
clk_prepare_enable/unprepare_disable(), but it should certainly be 
doable for future API additions now that we have the atomic/non-atomic 
differentiation out of the way.

Thanks,
Saravana


-- 
Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.

WARNING: multiple messages have this Message-ID (diff)
From: skannan@codeaurora.org (Saravana Kannan)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v7 1/3] Documentation: common clk API
Date: Fri, 16 Mar 2012 20:38:54 -0700	[thread overview]
Message-ID: <4F64074E.2070903@codeaurora.org> (raw)
In-Reply-To: <4F63E0D3.3060106@gmail.com>

On 03/16/2012 05:54 PM, Rob Herring wrote:
> On 03/16/2012 06:47 PM, Sascha Hauer wrote:
>> Hi Paul,
>>
>> On Fri, Mar 16, 2012 at 04:21:17PM -0600, Paul Walmsley wrote:
>>> Hi
>>>
>>> On Fri, 16 Mar 2012, Arnd Bergmann wrote:
>>>
>>>
>>> If the common clock code is to go upstream now, it should be marked as
>>> experimental.
>>
>> No, please don't do this. This effectively marks the architectures using
>> the generic clock framework experimental. We can mark drivers as 'you
>> have been warned', but marking an architecture as experimental is the
>> wrong sign for both its users and people willing to adopt the framework.
>> Also we get this:
>>
>> warning: (ARCH_MX1&&  MACH_MX21&&  ARCH_MX25&&  MACH_MX27) selects COMMON_CLK which has unmet direct dependencies (EXPERIMENTAL)
>>
>> (and no, I don't want to support to clock frameworks in parallel)
>>
>
> +1
>
> For simple users at least, the api is perfectly adequate and it is not
> experimental (unless new means experimental).
>

+1 - not experimental please.

While I agree with Mike and Paul that there is room for a lot of 
improvements to the clock APIs, I think the existing APIs in this patch 
series can become macro wrappers around any new APIs improvements we add 
in the future.

We should have really done that for the 
clk_prepare_enable/unprepare_disable(), but it should certainly be 
doable for future API additions now that we have the atomic/non-atomic 
differentiation out of the way.

Thanks,
Saravana


-- 
Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.

  reply	other threads:[~2012-03-17  3:39 UTC|newest]

Thread overview: 242+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-16  6:11 [PATCH v7 0/3] common clk framework Mike Turquette
2012-03-16  6:11 ` Mike Turquette
2012-03-16  6:11 ` [PATCH v7 1/3] Documentation: common clk API Mike Turquette
2012-03-16  6:11   ` Mike Turquette
2012-03-16  8:25   ` Linus Walleij
2012-03-16  8:25     ` Linus Walleij
2012-03-16 10:29     ` Thomas Gleixner
2012-03-16 10:29       ` Thomas Gleixner
2012-03-16 11:14       ` Amit Kucheria
2012-03-16 11:14         ` Amit Kucheria
2012-03-16 12:18         ` Arnd Bergmann
2012-03-16 12:18           ` Arnd Bergmann
2012-03-16 20:57           ` Arnd Bergmann
2012-03-16 20:57             ` Arnd Bergmann
2012-03-16 21:40             ` Turquette, Mike
2012-03-16 21:40               ` Turquette, Mike
2012-03-16 21:50             ` Nicolas Pitre
2012-03-16 21:50               ` Nicolas Pitre
2012-03-16 22:21             ` Paul Walmsley
2012-03-16 22:21               ` Paul Walmsley
2012-03-16 22:21               ` Paul Walmsley
2012-03-16 22:33               ` Turquette, Mike
2012-03-16 22:33                 ` Turquette, Mike
2012-03-17  9:05                 ` Arnd Bergmann
2012-03-17  9:05                   ` Arnd Bergmann
2012-03-17  9:05                   ` Arnd Bergmann
2012-03-17 18:02                   ` Turquette, Mike
2012-03-17 18:02                     ` Turquette, Mike
2012-03-17 18:02                     ` Turquette, Mike
2012-03-17 18:33                     ` Arnd Bergmann
2012-03-17 18:33                       ` Arnd Bergmann
2012-03-17 18:33                       ` Arnd Bergmann
2012-03-17 20:29                     ` Sascha Hauer
2012-03-17 20:29                       ` Sascha Hauer
2012-03-17 20:29                       ` Sascha Hauer
2012-03-17 21:13                       ` Arnd Bergmann
2012-03-17 21:13                         ` Arnd Bergmann
2012-03-17 21:13                         ` Arnd Bergmann
2012-03-20 23:40                   ` Paul Walmsley
2012-03-20 23:40                     ` Paul Walmsley
2012-03-21  8:59                     ` Arnd Bergmann
2012-03-21  8:59                       ` Arnd Bergmann
2012-03-16 23:47               ` Sascha Hauer
2012-03-16 23:47                 ` Sascha Hauer
2012-03-16 23:47                 ` Sascha Hauer
2012-03-17  0:54                 ` Rob Herring
2012-03-17  0:54                   ` Rob Herring
2012-03-17  0:54                   ` Rob Herring
2012-03-17  3:38                   ` Saravana Kannan [this message]
2012-03-17  3:38                     ` Saravana Kannan
2012-03-17  3:38                     ` Saravana Kannan
2012-03-20 23:31                 ` Paul Walmsley
2012-03-20 23:31                   ` Paul Walmsley
2012-03-20 23:31                   ` Paul Walmsley
2012-03-21  3:15                   ` Nicolas Pitre
2012-03-21  3:15                     ` Nicolas Pitre
2012-03-21  3:15                     ` Nicolas Pitre
2012-03-21  3:26                     ` Saravana Kannan
2012-03-21  3:26                       ` Saravana Kannan
2012-03-21  3:26                       ` Saravana Kannan
2012-03-21  7:44                       ` Paul Walmsley
2012-03-21  7:44                         ` Paul Walmsley
2012-03-21  7:44                         ` Paul Walmsley
2012-03-21  9:10                         ` Sascha Hauer
2012-03-21  9:10                           ` Sascha Hauer
2012-03-21  9:10                           ` Sascha Hauer
2012-03-21 18:38                         ` Saravana Kannan
2012-03-21 18:38                           ` Saravana Kannan
2012-03-21 18:38                           ` Saravana Kannan
2012-03-21 19:07                           ` Mark Brown
2012-03-21 19:07                             ` Mark Brown
2012-03-21 19:07                             ` Mark Brown
2012-03-21 19:33                             ` Tony Lindgren
2012-03-21 19:33                               ` Tony Lindgren
2012-03-21 19:33                               ` Tony Lindgren
2012-03-21 19:41                               ` Saravana Kannan
2012-03-21 19:41                                 ` Saravana Kannan
2012-03-21 19:41                                 ` Saravana Kannan
2012-03-21 19:56                                 ` Mark Brown
2012-03-21 19:56                                   ` Mark Brown
2012-03-21 19:56                                   ` Mark Brown
2012-03-21 20:04                                   ` Saravana Kannan
2012-03-21 20:04                                     ` Saravana Kannan
2012-03-21 20:04                                     ` Saravana Kannan
2012-03-21 20:10                                     ` Mark Brown
2012-03-21 20:10                                       ` Mark Brown
2012-03-21 20:10                                       ` Mark Brown
2012-03-22  0:42                                 ` Russell King - ARM Linux
2012-03-22  0:42                                   ` Russell King - ARM Linux
2012-03-22  0:42                                   ` Russell King - ARM Linux
2012-03-21  7:30                     ` Paul Walmsley
2012-03-21  7:30                       ` Paul Walmsley
2012-03-21  7:30                       ` Paul Walmsley
2012-03-21 13:23                       ` Nicolas Pitre
2012-03-21 13:23                         ` Nicolas Pitre
2012-03-21 13:23                         ` Nicolas Pitre
2012-03-16  6:11 ` [PATCH v7 2/3] clk: introduce the common clock framework Mike Turquette
2012-03-16  6:11   ` Mike Turquette
2012-03-17  3:28   ` Saravana Kannan
2012-03-17  3:28     ` Saravana Kannan
2012-03-19 18:56     ` Turquette, Mike
2012-03-19 18:56       ` Turquette, Mike
2012-03-19 19:13       ` Saravana Kannan
2012-03-19 19:13         ` Saravana Kannan
2012-03-19 19:33         ` Turquette, Mike
2012-03-19 19:33           ` Turquette, Mike
2012-03-19 19:49           ` Saravana Kannan
2012-03-19 19:49             ` Saravana Kannan
2012-03-20  3:38           ` [PATCH 1/2] clk: Fix error handling in fixed clock hardware type register fn Saravana Kannan
2012-03-20  3:38             ` Saravana Kannan
2012-03-20  3:38             ` [PATCH 2/2] clk: Move init fields from clk to clk_hw Saravana Kannan
2012-03-20  3:38               ` Saravana Kannan
2012-03-20  7:20               ` Shawn Guo
2012-03-20  7:20                 ` Shawn Guo
2012-03-20  7:54                 ` Saravana Kannan
2012-03-20  7:54                   ` Saravana Kannan
2012-03-20  7:54                   ` Saravana Kannan
2012-03-20  8:13                   ` Shawn Guo
2012-03-20  8:13                     ` Shawn Guo
2012-03-20  9:40                   ` Sascha Hauer
2012-03-20  9:40                     ` Sascha Hauer
2012-03-20 10:17                     ` Saravana Kannan
2012-03-20 10:17                       ` Saravana Kannan
2012-03-20 10:17                       ` Saravana Kannan
2012-03-20 18:14                       ` Sascha Hauer
2012-03-20 18:14                         ` Sascha Hauer
2012-03-20 20:14                         ` Saravana Kannan
2012-03-20 20:14                           ` Saravana Kannan
2012-03-20 22:40                           ` Sascha Hauer
2012-03-20 22:40                             ` Sascha Hauer
2012-03-22  3:23                             ` Shawn Guo
2012-03-22  3:23                               ` Shawn Guo
2012-03-20 14:18                     ` Shawn Guo
2012-03-20 14:18                       ` Shawn Guo
2012-03-20 18:10                       ` Sascha Hauer
2012-03-20 18:10                         ` Sascha Hauer
2012-03-20 20:06                         ` Saravana Kannan
2012-03-20 20:06                           ` Saravana Kannan
2012-03-20 23:12                           ` Sascha Hauer
2012-03-20 23:12                             ` Sascha Hauer
2012-03-21  1:47                             ` Turquette, Mike
2012-03-21  1:47                               ` Turquette, Mike
2012-03-21  3:01                               ` Saravana Kannan
2012-03-21  3:01                                 ` Saravana Kannan
2012-03-27  4:35                                 ` Saravana Kannan
2012-03-27  4:35                                   ` Saravana Kannan
2012-03-27 18:49                                   ` Turquette, Mike
2012-03-27 18:49                                     ` Turquette, Mike
2012-03-27 22:27                                     ` Saravana Kannan
2012-03-27 22:27                                       ` Saravana Kannan
2012-04-06  1:30                                     ` Saravana Kannan
2012-04-06  1:30                                       ` Saravana Kannan
2012-04-11 17:59                                       ` Turquette, Mike
2012-04-11 17:59                                         ` Turquette, Mike
2012-04-11 19:57                                         ` Saravana Kannan
2012-04-11 19:57                                           ` Saravana Kannan
2012-04-11 19:57                                           ` Saravana Kannan
2012-04-11 20:17                                           ` Turquette, Mike
2012-04-11 20:17                                             ` Turquette, Mike
2012-04-11 20:21                                             ` Saravana Kannan
2012-04-11 20:21                                               ` Saravana Kannan
2012-04-11 20:21                                               ` Saravana Kannan
2012-03-20 23:47                         ` Paul Walmsley
2012-03-20 23:47                           ` Paul Walmsley
2012-03-21  9:16                           ` Sascha Hauer
2012-03-21  9:16                             ` Sascha Hauer
2012-03-20  7:19             ` [PATCH 1/2] clk: Fix error handling in fixed clock hardware type register fn Sascha Hauer
2012-03-20  7:19               ` Sascha Hauer
2012-03-20  7:46               ` Saravana Kannan
2012-03-20  7:46                 ` Saravana Kannan
2012-03-20  7:46                 ` Saravana Kannan
2012-03-21  0:13                 ` Turquette, Mike
2012-03-21  0:13                   ` Turquette, Mike
2012-03-21  2:32                   ` Saravana Kannan
2012-03-21  2:32                     ` Saravana Kannan
2012-03-21  5:45                     ` Turquette, Mike
2012-03-21  5:45                       ` Turquette, Mike
2012-03-21  6:33                       ` Saravana Kannan
2012-03-21  6:33                         ` Saravana Kannan
2012-03-21  6:33                         ` Saravana Kannan
2012-03-21  9:07                       ` Russell King - ARM Linux
2012-03-21  9:07                         ` Russell King - ARM Linux
2012-03-21 19:56                         ` Turquette, Mike
2012-03-21 19:56                           ` Turquette, Mike
2012-03-18 13:46   ` [PATCH v7 2/3] clk: introduce the common clock framework Shawn Guo
2012-03-18 13:46     ` Shawn Guo
2012-03-19 18:58     ` Turquette, Mike
2012-03-19 18:58       ` Turquette, Mike
2012-03-18 14:07   ` Shawn Guo
2012-03-18 14:07     ` Shawn Guo
2012-03-19 19:00     ` Turquette, Mike
2012-03-19 19:00       ` Turquette, Mike
2012-03-19 11:22   ` Rajendra Nayak
2012-03-19 11:22     ` Rajendra Nayak
2012-03-19 11:28     ` Sascha Hauer
2012-03-19 11:28       ` Sascha Hauer
2012-03-19 19:09       ` Turquette, Mike
2012-03-19 19:09         ` Turquette, Mike
2012-03-19 19:53     ` Turquette, Mike
2012-03-19 19:53       ` Turquette, Mike
2012-03-20 14:02   ` Shawn Guo
2012-03-20 14:02     ` Shawn Guo
2012-03-20 17:46     ` Saravana Kannan
2012-03-20 17:46       ` Saravana Kannan
2012-03-20 23:53       ` Turquette, Mike
2012-03-20 23:53         ` Turquette, Mike
2012-03-21  3:10         ` Saravana Kannan
2012-03-21  3:10           ` Saravana Kannan
2012-03-23 21:33           ` Saravana Kannan
2012-03-23 21:33             ` Saravana Kannan
2012-03-23 21:39             ` Turquette, Mike
2012-03-23 21:39               ` Turquette, Mike
2012-03-23 21:51               ` Saravana Kannan
2012-03-23 21:51                 ` Saravana Kannan
2012-03-23 22:12               ` Saravana Kannan
2012-03-23 22:12                 ` Saravana Kannan
2012-03-23 22:32                 ` Turquette, Mike
2012-03-23 22:32                   ` Turquette, Mike
2012-03-23 23:04                   ` Saravana Kannan
2012-03-23 23:04                     ` Saravana Kannan
2012-03-23 23:28                     ` Turquette, Mike
2012-03-23 23:28                       ` Turquette, Mike
2012-03-28  3:06                       ` Saravana Kannan
2012-03-28  3:06                         ` Saravana Kannan
2012-03-28 17:08                         ` Turquette, Mike
2012-03-28 17:08                           ` Turquette, Mike
2012-03-28 22:25                           ` Saravana Kannan
2012-03-28 22:25                             ` Saravana Kannan
2012-03-28 23:49                             ` Turquette, Mike
2012-03-28 23:49                               ` Turquette, Mike
2012-03-20 23:46     ` Turquette, Mike
2012-03-20 23:46       ` Turquette, Mike
2012-03-21  5:46       ` Shawn Guo
2012-03-21  5:46         ` Shawn Guo
2012-03-16  6:11 ` [PATCH v7 3/3] clk: basic clock hardware types Mike Turquette
2012-03-16  6:11   ` Mike Turquette
2012-03-16 12:25   ` Richard Zhao
2012-03-16 12:25     ` Richard Zhao
2012-03-16 16:51     ` Turquette, Mike
2012-03-16 16:51       ` Turquette, Mike
2012-03-16 10:57 ` [PATCH v7 0/3] common clk framework Sascha Hauer
2012-03-16 10:57   ` Sascha Hauer

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