From: Rob Herring <robh@kernel.org> To: Linus Walleij <linus.walleij@linaro.org>, Liviu Dudau <liviu.dudau@arm.com>, Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>, Sudeep Holla <sudeep.holla@arm.com> Cc: Arnd Bergmann <arnd@arndb.de>, Catalin Marinas <catalin.marinas@arm.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Lee Jones <lee.jones@linaro.org>, Sebastian Reichel <sre@kernel.org>, Stephen Boyd <sboyd@kernel.org>, Will Deacon <will@kernel.org>, Kevin Brodsky <Kevin.Brodsky@arm.com>, linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH 00/17] Modularizing Versatile Express Date: Sun, 19 Apr 2020 12:07:53 -0500 [thread overview] Message-ID: <20200419170810.5738-1-robh@kernel.org> (raw) 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. Rob [1] git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git vexpress-modules-v3 Rob Herring (17): ARM: vexpress: Move vexpress_flags_set() into arch code arm64: vexpress: Don't select CONFIG_POWER_RESET_VEXPRESS arm64: vexpress: Don't select CONFIG_VEXPRESS_CONFIG power/reset: vexpress: Support building as a module clk: versatile: Kill CONFIG_COMMON_CLK_VERSATILE clk: versatile: Only enable SP810 on 32-bit by default clk: vexpress-osc: Use the devres clock API variants clk: vexpress-osc: Support building as a module mfd: vexpress-sysreg: Drop selecting CONFIG_CLKSRC_MMIO mfd: vexpress-sysreg: Drop unused syscon child devices mfd: vexpress-sysreg: Use devres API variants mfd: vexpress-sysreg: Support building as a module bus: vexpress-config: Merge vexpress-syscfg into vexpress-config bus: vexpress-config: simplify config bus probing vexpress: Move site master init to vexpress-config bus bus: vexpress-config: Support building as module ARM: vexpress: Don't select VEXPRESS_CONFIG arch/arm/mach-integrator/Kconfig | 1 - arch/arm/mach-realview/Kconfig | 1 - arch/arm/mach-versatile/Kconfig | 1 - arch/arm/mach-vexpress/Kconfig | 4 - arch/arm/mach-vexpress/core.h | 1 + arch/arm/mach-vexpress/dcscb.c | 1 + arch/arm/mach-vexpress/v2m.c | 23 ++ arch/arm64/Kconfig.platforms | 3 - drivers/bus/Kconfig | 2 +- drivers/bus/vexpress-config.c | 354 ++++++++++++++++++----- drivers/clk/Makefile | 2 +- drivers/clk/versatile/Kconfig | 15 +- drivers/clk/versatile/clk-vexpress-osc.c | 20 +- drivers/mfd/Kconfig | 5 +- drivers/mfd/vexpress-sysreg.c | 99 +------ drivers/misc/Kconfig | 9 - drivers/misc/Makefile | 1 - drivers/misc/vexpress-syscfg.c | 280 ------------------ drivers/power/reset/Kconfig | 2 +- drivers/power/reset/vexpress-poweroff.c | 10 +- include/linux/vexpress.h | 30 -- 21 files changed, 338 insertions(+), 526 deletions(-) delete mode 100644 drivers/misc/vexpress-syscfg.c -- 2.20.1
WARNING: multiple messages have this Message-ID (diff)
From: Rob Herring <robh@kernel.org> To: Linus Walleij <linus.walleij@linaro.org>, Liviu Dudau <liviu.dudau@arm.com>, Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>, Sudeep Holla <sudeep.holla@arm.com> Cc: Arnd Bergmann <arnd@arndb.de>, linux-pm@vger.kernel.org, Stephen Boyd <sboyd@kernel.org>, Catalin Marinas <catalin.marinas@arm.com>, Kevin Brodsky <Kevin.Brodsky@arm.com>, Sebastian Reichel <sre@kernel.org>, 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: [PATCH 00/17] Modularizing Versatile Express Date: Sun, 19 Apr 2020 12:07:53 -0500 [thread overview] Message-ID: <20200419170810.5738-1-robh@kernel.org> (raw) 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. Rob [1] git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git vexpress-modules-v3 Rob Herring (17): ARM: vexpress: Move vexpress_flags_set() into arch code arm64: vexpress: Don't select CONFIG_POWER_RESET_VEXPRESS arm64: vexpress: Don't select CONFIG_VEXPRESS_CONFIG power/reset: vexpress: Support building as a module clk: versatile: Kill CONFIG_COMMON_CLK_VERSATILE clk: versatile: Only enable SP810 on 32-bit by default clk: vexpress-osc: Use the devres clock API variants clk: vexpress-osc: Support building as a module mfd: vexpress-sysreg: Drop selecting CONFIG_CLKSRC_MMIO mfd: vexpress-sysreg: Drop unused syscon child devices mfd: vexpress-sysreg: Use devres API variants mfd: vexpress-sysreg: Support building as a module bus: vexpress-config: Merge vexpress-syscfg into vexpress-config bus: vexpress-config: simplify config bus probing vexpress: Move site master init to vexpress-config bus bus: vexpress-config: Support building as module ARM: vexpress: Don't select VEXPRESS_CONFIG arch/arm/mach-integrator/Kconfig | 1 - arch/arm/mach-realview/Kconfig | 1 - arch/arm/mach-versatile/Kconfig | 1 - arch/arm/mach-vexpress/Kconfig | 4 - arch/arm/mach-vexpress/core.h | 1 + arch/arm/mach-vexpress/dcscb.c | 1 + arch/arm/mach-vexpress/v2m.c | 23 ++ arch/arm64/Kconfig.platforms | 3 - drivers/bus/Kconfig | 2 +- drivers/bus/vexpress-config.c | 354 ++++++++++++++++++----- drivers/clk/Makefile | 2 +- drivers/clk/versatile/Kconfig | 15 +- drivers/clk/versatile/clk-vexpress-osc.c | 20 +- drivers/mfd/Kconfig | 5 +- drivers/mfd/vexpress-sysreg.c | 99 +------ drivers/misc/Kconfig | 9 - drivers/misc/Makefile | 1 - drivers/misc/vexpress-syscfg.c | 280 ------------------ drivers/power/reset/Kconfig | 2 +- drivers/power/reset/vexpress-poweroff.c | 10 +- include/linux/vexpress.h | 30 -- 21 files changed, 338 insertions(+), 526 deletions(-) delete mode 100644 drivers/misc/vexpress-syscfg.c -- 2.20.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply other threads:[~2020-04-19 17:08 UTC|newest] Thread overview: 136+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-04-19 17:07 Rob Herring [this message] 2020-04-19 17:07 ` [PATCH 00/17] Modularizing Versatile Express Rob Herring 2020-04-19 17:07 ` [PATCH 01/17] ARM: vexpress: Move vexpress_flags_set() into arch code Rob Herring 2020-04-19 17:07 ` Rob Herring 2020-04-20 15:17 ` Arnd Bergmann 2020-04-20 15:17 ` Arnd Bergmann 2020-04-22 10:15 ` Liviu Dudau 2020-04-22 10:15 ` Liviu Dudau 2020-04-22 19:04 ` Sudeep Holla 2020-04-22 19:04 ` Sudeep Holla 2020-04-19 17:07 ` [PATCH 02/17] arm64: vexpress: Don't select CONFIG_POWER_RESET_VEXPRESS Rob Herring 2020-04-19 17:07 ` Rob Herring 2020-04-20 15:18 ` Arnd Bergmann 2020-04-20 15:18 ` Arnd Bergmann 2020-04-22 10:16 ` Liviu Dudau 2020-04-22 10:16 ` Liviu Dudau 2020-04-22 19:08 ` Sudeep Holla 2020-04-22 19:08 ` Sudeep Holla 2020-04-19 17:07 ` [PATCH 03/17] arm64: vexpress: Don't select CONFIG_VEXPRESS_CONFIG Rob Herring 2020-04-19 17:07 ` Rob Herring 2020-04-20 15:18 ` Arnd Bergmann 2020-04-20 15:18 ` Arnd Bergmann 2020-04-22 19:09 ` Sudeep Holla 2020-04-22 19:09 ` Sudeep Holla 2020-04-19 17:07 ` [PATCH 04/17] power/reset: vexpress: Support building as a module Rob Herring 2020-04-19 17:07 ` Rob Herring 2020-04-20 15:23 ` Arnd Bergmann 2020-04-20 15:23 ` Arnd Bergmann 2020-04-20 17:23 ` Rob Herring 2020-04-20 17:23 ` Rob Herring 2020-04-28 19:31 ` Sebastian Reichel 2020-04-28 19:31 ` Sebastian Reichel 2020-04-22 19:11 ` Sudeep Holla 2020-04-22 19:11 ` Sudeep Holla 2020-04-19 17:07 ` [PATCH 05/17] clk: versatile: Kill CONFIG_COMMON_CLK_VERSATILE Rob Herring 2020-04-19 17:07 ` Rob Herring 2020-04-20 6:44 ` Linus Walleij 2020-04-20 6:44 ` Linus Walleij 2020-04-22 9:47 ` Stephen Boyd 2020-04-22 9:47 ` Stephen Boyd 2020-04-22 22:34 ` Rob Herring 2020-04-22 22:34 ` Rob Herring 2020-04-22 19:17 ` Sudeep Holla 2020-04-22 19:17 ` Sudeep Holla 2020-04-19 17:07 ` [PATCH 06/17] clk: versatile: Only enable SP810 on 32-bit by default Rob Herring 2020-04-19 17:07 ` Rob Herring 2020-04-20 15:26 ` Arnd Bergmann 2020-04-20 15:26 ` Arnd Bergmann 2020-04-20 17:48 ` Rob Herring 2020-04-20 17:48 ` Rob Herring 2020-04-20 20:07 ` Arnd Bergmann 2020-04-20 20:07 ` Arnd Bergmann 2020-04-22 9:48 ` Stephen Boyd 2020-04-22 9:48 ` Stephen Boyd 2020-04-22 10:20 ` Liviu Dudau 2020-04-22 10:20 ` Liviu Dudau 2020-04-22 20:52 ` Sudeep Holla 2020-04-22 20:52 ` Sudeep Holla 2020-04-23 15:38 ` Rob Herring 2020-04-23 15:38 ` Rob Herring 2020-04-19 17:08 ` [PATCH 07/17] clk: vexpress-osc: Use the devres clock API variants Rob Herring 2020-04-19 17:08 ` Rob Herring 2020-04-20 15:26 ` Arnd Bergmann 2020-04-20 15:26 ` Arnd Bergmann 2020-04-22 9:51 ` Stephen Boyd 2020-04-22 9:51 ` Stephen Boyd 2020-04-22 10:21 ` Liviu Dudau 2020-04-22 10:21 ` Liviu Dudau 2020-04-22 20:56 ` Sudeep Holla 2020-04-22 20:56 ` Sudeep Holla 2020-04-19 17:08 ` [PATCH 08/17] clk: vexpress-osc: Support building as a module Rob Herring 2020-04-19 17:08 ` Rob Herring 2020-04-20 15:27 ` Arnd Bergmann 2020-04-20 15:27 ` Arnd Bergmann 2020-04-20 17:18 ` Rob Herring 2020-04-20 17:18 ` Rob Herring 2020-04-22 11:01 ` Liviu Dudau 2020-04-22 11:01 ` Liviu Dudau 2020-04-22 21:08 ` Sudeep Holla 2020-04-22 21:08 ` Sudeep Holla 2020-04-23 13:45 ` Sudeep Holla 2020-04-23 13:45 ` Sudeep Holla 2020-04-23 15:53 ` Rob Herring 2020-04-23 15:53 ` Rob Herring 2020-04-23 16:58 ` Sudeep Holla 2020-04-23 16:58 ` Sudeep Holla 2020-04-19 17:08 ` [PATCH 09/17] mfd: vexpress-sysreg: Drop selecting CONFIG_CLKSRC_MMIO Rob Herring 2020-04-19 17:08 ` Rob Herring 2020-04-20 15:29 ` Arnd Bergmann 2020-04-20 15:29 ` Arnd Bergmann 2020-04-22 11:02 ` Liviu Dudau 2020-04-22 11:02 ` Liviu Dudau 2020-04-19 17:08 ` [PATCH 10/17] mfd: vexpress-sysreg: Drop unused syscon child devices Rob Herring 2020-04-19 17:08 ` Rob Herring 2020-04-20 15:30 ` Arnd Bergmann 2020-04-20 15:30 ` Arnd Bergmann 2020-04-22 11:18 ` Liviu Dudau 2020-04-22 11:18 ` Liviu Dudau 2020-04-19 17:08 ` [PATCH 11/17] mfd: vexpress-sysreg: Use devres API variants Rob Herring 2020-04-19 17:08 ` Rob Herring 2020-04-20 15:31 ` Arnd Bergmann 2020-04-20 15:31 ` Arnd Bergmann 2020-04-22 11:18 ` Liviu Dudau 2020-04-22 11:18 ` Liviu Dudau 2020-04-19 17:08 ` [PATCH 12/17] mfd: vexpress-sysreg: Support building as a module Rob Herring 2020-04-19 17:08 ` Rob Herring 2020-04-20 15:32 ` Arnd Bergmann 2020-04-20 15:32 ` Arnd Bergmann 2020-04-20 17:05 ` Rob Herring 2020-04-20 17:05 ` Rob Herring 2020-04-19 17:08 ` [PATCH 13/17] bus: vexpress-config: Merge vexpress-syscfg into vexpress-config Rob Herring 2020-04-19 17:08 ` Rob Herring 2020-04-20 11:45 ` Greg Kroah-Hartman 2020-04-20 11:45 ` Greg Kroah-Hartman 2020-04-22 11:22 ` Liviu Dudau 2020-04-22 11:22 ` Liviu Dudau 2020-04-19 17:08 ` [PATCH 14/17] bus: vexpress-config: simplify config bus probing Rob Herring 2020-04-19 17:08 ` Rob Herring 2020-04-22 11:58 ` Liviu Dudau 2020-04-22 11:58 ` Liviu Dudau 2020-04-19 17:08 ` [PATCH 15/17] vexpress: Move site master init to vexpress-config bus Rob Herring 2020-04-19 17:08 ` Rob Herring 2020-04-22 9:51 ` Stephen Boyd 2020-04-22 9:51 ` Stephen Boyd 2020-04-22 12:03 ` Liviu Dudau 2020-04-22 12:03 ` Liviu Dudau 2020-04-23 0:54 ` Rob Herring 2020-04-23 0:54 ` Rob Herring 2020-04-19 17:08 ` [PATCH 16/17] bus: vexpress-config: Support building as module Rob Herring 2020-04-19 17:08 ` Rob Herring 2020-04-22 12:04 ` Liviu Dudau 2020-04-22 12:04 ` Liviu Dudau 2020-04-19 17:08 ` [PATCH 17/17] ARM: vexpress: Don't select VEXPRESS_CONFIG Rob Herring 2020-04-19 17:08 ` Rob Herring 2020-04-22 12:05 ` Liviu Dudau 2020-04-22 12:05 ` Liviu Dudau
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