From: Sudeep Holla <sudeep.holla@arm.com>
To: Rob Herring <robh@kernel.org>
Cc: Linus Walleij <linus.walleij@linaro.org>,
Liviu Dudau <liviu.dudau@arm.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Kevin Brodsky <Kevin.Brodsky@arm.com>,
Arnd Bergmann <arnd@arndb.de>,
Catalin Marinas <catalin.marinas@arm.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Lee Jones <lee.jones@linaro.org>,
Sudeep Holla <sudeep.holla@arm.com>,
Sebastian Reichel <sre@kernel.org>,
Stephen Boyd <sboyd@kernel.org>, Will Deacon <will@kernel.org>,
linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org,
linux-pm@vger.kernel.org
Subject: Re: [PATCH v2 00/17] Modularizing Versatile Express
Date: Fri, 1 May 2020 18:20:29 +0100 [thread overview]
Message-ID: <20200501172029.GM14018@bogus> (raw)
In-Reply-To: <20200429205825.10604-1-robh@kernel.org>
On Wed, Apr 29, 2020 at 03:58:09PM -0500, Rob Herring wrote:
> This series enables building various Versatile Express platform drivers
> as modules. The primary target is the Fast Model FVP which is supported
> in Android. As Android is moving towards their GKI, or generic kernel,
> the hardware support has to be in modules. Currently ARCH_VEXPRESS
> enables several built-in only drivers. Some of these are needed, but
> some are only needed for older 32-bit VExpress platforms and can just
> be disabled. For FVP, the pl111 display driver is needed. The pl111
> driver depends on vexpress-osc clocks which had a dependency chain of
> vexpress-config --> vexpress-syscfg --> vexpress-sysreg. These
> components relied on fixed initcall ordering and didn't support deferred
> probe which would have complicated making them modules. All these levels
> of abstraction are needlessly complicated, so this series simplifies
> things a bit by merging the vexpress-config and vexpress-syscfg
> functionality.
>
> There's a couple of other pieces to this which I've sent out separately
> as they don't have dependencies with this series. The cross subsystem
> dependencies in this series are mainly the ordering of enabling drivers
> as modules.
>
> A complete git branch is here[1]. Tested on Fast Model FVP Rev C.
I am assuming you will send pull request to ARM SoC guys directly. Let
me know what's the plan if that's not the case.
--
Regards,
Sudeep
WARNING: multiple messages have this Message-ID (diff)
From: Sudeep Holla <sudeep.holla@arm.com>
To: Rob Herring <robh@kernel.org>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Arnd Bergmann <arnd@arndb.de>,
linux-pm@vger.kernel.org, Stephen Boyd <sboyd@kernel.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Linus Walleij <linus.walleij@linaro.org>,
Kevin Brodsky <Kevin.Brodsky@arm.com>,
Liviu Dudau <liviu.dudau@arm.com>,
Sebastian Reichel <sre@kernel.org>,
Sudeep Holla <sudeep.holla@arm.com>,
Will Deacon <will@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Lee Jones <lee.jones@linaro.org>,
linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 00/17] Modularizing Versatile Express
Date: Fri, 1 May 2020 18:20:29 +0100 [thread overview]
Message-ID: <20200501172029.GM14018@bogus> (raw)
In-Reply-To: <20200429205825.10604-1-robh@kernel.org>
On Wed, Apr 29, 2020 at 03:58:09PM -0500, Rob Herring wrote:
> This series enables building various Versatile Express platform drivers
> as modules. The primary target is the Fast Model FVP which is supported
> in Android. As Android is moving towards their GKI, or generic kernel,
> the hardware support has to be in modules. Currently ARCH_VEXPRESS
> enables several built-in only drivers. Some of these are needed, but
> some are only needed for older 32-bit VExpress platforms and can just
> be disabled. For FVP, the pl111 display driver is needed. The pl111
> driver depends on vexpress-osc clocks which had a dependency chain of
> vexpress-config --> vexpress-syscfg --> vexpress-sysreg. These
> components relied on fixed initcall ordering and didn't support deferred
> probe which would have complicated making them modules. All these levels
> of abstraction are needlessly complicated, so this series simplifies
> things a bit by merging the vexpress-config and vexpress-syscfg
> functionality.
>
> There's a couple of other pieces to this which I've sent out separately
> as they don't have dependencies with this series. The cross subsystem
> dependencies in this series are mainly the ordering of enabling drivers
> as modules.
>
> A complete git branch is here[1]. Tested on Fast Model FVP Rev C.
I am assuming you will send pull request to ARM SoC guys directly. Let
me know what's the plan if that's not the case.
--
Regards,
Sudeep
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next prev parent reply other threads:[~2020-05-01 17:20 UTC|newest]
Thread overview: 86+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-29 20:58 [PATCH v2 00/17] Modularizing Versatile Express Rob Herring
2020-04-29 20:58 ` Rob Herring
2020-04-29 20:58 ` [PATCH v2 01/16] ARM: vexpress: Move vexpress_flags_set() into arch code Rob Herring
2020-04-29 20:58 ` Rob Herring
2020-05-04 8:56 ` Lee Jones
2020-05-04 8:56 ` Lee Jones
2020-04-29 20:58 ` [PATCH v2 02/16] arm64: vexpress: Don't select CONFIG_POWER_RESET_VEXPRESS Rob Herring
2020-04-29 20:58 ` Rob Herring
2020-04-29 20:58 ` [PATCH v2 03/16] amba: Retry adding deferred devices at late_initcall Rob Herring
2020-04-29 20:58 ` Rob Herring
2020-04-29 20:58 ` [PATCH v2 04/16] clk: versatile: Rework kconfig structure Rob Herring
2020-04-29 20:58 ` Rob Herring
2020-05-01 16:26 ` Sudeep Holla
2020-05-01 16:26 ` Sudeep Holla
2020-05-05 6:20 ` Stephen Boyd
2020-05-05 6:20 ` Stephen Boyd
2020-04-29 20:58 ` [PATCH v2 05/16] clk: versatile: Only enable SP810 on 32-bit by default Rob Herring
2020-04-29 20:58 ` Rob Herring
2020-05-01 16:32 ` Sudeep Holla
2020-05-01 16:32 ` Sudeep Holla
2020-05-05 6:20 ` Stephen Boyd
2020-05-05 6:20 ` Stephen Boyd
2020-04-29 20:58 ` [PATCH v2 06/16] clk: vexpress-osc: Use the devres clock API variants Rob Herring
2020-04-29 20:58 ` Rob Herring
2020-04-29 20:58 ` [PATCH v2 07/16] clk: vexpress-osc: Support building as a module Rob Herring
2020-04-29 20:58 ` Rob Herring
2020-05-01 16:36 ` Sudeep Holla
2020-05-01 16:36 ` Sudeep Holla
2020-05-05 6:21 ` Stephen Boyd
2020-05-05 6:21 ` Stephen Boyd
2020-04-29 20:58 ` [PATCH v2 08/16] mfd: vexpress-sysreg: Drop selecting CONFIG_CLKSRC_MMIO Rob Herring
2020-04-29 20:58 ` Rob Herring
2020-05-01 16:37 ` Sudeep Holla
2020-05-01 16:37 ` Sudeep Holla
2020-05-04 8:55 ` Lee Jones
2020-05-04 8:55 ` Lee Jones
2020-04-29 20:58 ` [PATCH v2 09/16] mfd: vexpress-sysreg: Drop unused syscon child devices Rob Herring
2020-04-29 20:58 ` Rob Herring
2020-05-01 16:50 ` Sudeep Holla
2020-05-01 16:50 ` Sudeep Holla
2020-05-04 8:41 ` Lee Jones
2020-05-04 8:41 ` Lee Jones
2020-04-29 20:58 ` [PATCH v2 10/16] mfd: vexpress-sysreg: Use devres API variants Rob Herring
2020-04-29 20:58 ` Rob Herring
2020-05-01 16:56 ` Sudeep Holla
2020-05-01 16:56 ` Sudeep Holla
2020-05-04 8:41 ` Lee Jones
2020-05-04 8:41 ` Lee Jones
2020-04-29 20:58 ` [PATCH v2 11/16] mfd: vexpress-sysreg: Support building as a module Rob Herring
2020-04-29 20:58 ` Rob Herring
2020-05-01 16:58 ` Sudeep Holla
2020-05-01 16:58 ` Sudeep Holla
2020-05-04 8:40 ` Lee Jones
2020-05-04 8:40 ` Lee Jones
2020-04-29 20:58 ` [PATCH v2 12/16] bus: vexpress-config: Merge vexpress-syscfg into vexpress-config Rob Herring
2020-04-29 20:58 ` Rob Herring
2020-05-01 17:02 ` Sudeep Holla
2020-05-01 17:02 ` Sudeep Holla
2020-04-29 20:58 ` [PATCH v2 13/16] bus: vexpress-config: simplify config bus probing Rob Herring
2020-04-29 20:58 ` Rob Herring
2020-05-01 17:10 ` Sudeep Holla
2020-05-01 17:10 ` Sudeep Holla
2020-04-29 20:58 ` [PATCH v2 14/16] vexpress: Move setting master site to vexpress-config bus Rob Herring
2020-04-29 20:58 ` Rob Herring
2020-05-01 17:18 ` Sudeep Holla
2020-05-01 17:18 ` Sudeep Holla
2020-05-04 8:26 ` Lee Jones
2020-05-04 8:26 ` Lee Jones
2020-04-29 20:58 ` [PATCH v2 15/16] bus: vexpress-config: Support building as module Rob Herring
2020-04-29 20:58 ` Rob Herring
2020-05-01 16:58 ` Sudeep Holla
2020-05-01 16:58 ` Sudeep Holla
2020-04-29 20:58 ` [PATCH v2 16/16] ARM: vexpress: Don't select VEXPRESS_CONFIG Rob Herring
2020-04-29 20:58 ` Rob Herring
2020-05-01 16:55 ` Sudeep Holla
2020-05-01 16:55 ` Sudeep Holla
2020-04-29 22:11 ` [PATCH v2 00/17] Modularizing Versatile Express Sebastian Reichel
2020-04-29 22:11 ` Sebastian Reichel
2020-05-01 17:20 ` Sudeep Holla [this message]
2020-05-01 17:20 ` Sudeep Holla
2020-06-17 15:08 ` Daniel Thompson
2020-06-17 15:08 ` Daniel Thompson
2020-07-08 16:39 ` Rob Herring
2020-07-08 16:39 ` Rob Herring
2020-07-09 11:33 ` Daniel Thompson
2020-07-09 11:33 ` Daniel Thompson
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