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: 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>, 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: [PATCH v2 00/17] Modularizing Versatile Express Date: Wed, 29 Apr 2020 15:58:09 -0500 [thread overview] Message-ID: <20200429205825.10604-1-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. v2: The major change is a boot fix for 32-bit VExpress platforms with patch 3. I also dropped 'power/reset: vexpress: Support building as a module' as it was incomplete and not needed for this series. Rob [1] git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git vexpress-modules-v4 Rob Herring (16): ARM: vexpress: Move vexpress_flags_set() into arch code arm64: vexpress: Don't select CONFIG_POWER_RESET_VEXPRESS amba: Retry adding deferred devices at late_initcall clk: versatile: Rework kconfig structure 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 setting master site 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/amba/bus.c | 14 +- drivers/bus/Kconfig | 2 +- drivers/bus/vexpress-config.c | 354 ++++++++++++++++++----- drivers/clk/Makefile | 2 +- drivers/clk/versatile/Kconfig | 24 +- 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 ------------------ include/linux/vexpress.h | 30 -- 20 files changed, 354 insertions(+), 521 deletions(-) delete mode 100644 drivers/misc/vexpress-syscfg.c base-commit: 8f3d9f354286745c751374f5f1fcafee6b3f3136 -- 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 v2 00/17] Modularizing Versatile Express Date: Wed, 29 Apr 2020 15:58:09 -0500 [thread overview] Message-ID: <20200429205825.10604-1-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. v2: The major change is a boot fix for 32-bit VExpress platforms with patch 3. I also dropped 'power/reset: vexpress: Support building as a module' as it was incomplete and not needed for this series. Rob [1] git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git vexpress-modules-v4 Rob Herring (16): ARM: vexpress: Move vexpress_flags_set() into arch code arm64: vexpress: Don't select CONFIG_POWER_RESET_VEXPRESS amba: Retry adding deferred devices at late_initcall clk: versatile: Rework kconfig structure 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 setting master site 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/amba/bus.c | 14 +- drivers/bus/Kconfig | 2 +- drivers/bus/vexpress-config.c | 354 ++++++++++++++++++----- drivers/clk/Makefile | 2 +- drivers/clk/versatile/Kconfig | 24 +- 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 ------------------ include/linux/vexpress.h | 30 -- 20 files changed, 354 insertions(+), 521 deletions(-) delete mode 100644 drivers/misc/vexpress-syscfg.c base-commit: 8f3d9f354286745c751374f5f1fcafee6b3f3136 -- 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:[~2020-04-29 20:58 UTC|newest] Thread overview: 86+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-04-29 20:58 Rob Herring [this message] 2020-04-29 20:58 ` [PATCH v2 00/17] Modularizing Versatile Express 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 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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