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2020-05-20soc: imx: move cpu code to drivers/soc/imxPeng Fan3-182/+195
Move the soc device register code to drivers/soc/imx to align with i.MX8. Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-05-20ARM: imx: move cpu definitions into a headerPeng Fan2-27/+37
The soc device register code will be moved to drivers/soc/imx/, the code needs the cpu type definitions. So let's move the cpu type definitions to a header. Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-05-20ARM: imx: use device_initcall for imx_soc_device_initPeng Fan9-50/+20
This is preparation to move imx_soc_device_init to drivers/soc/imx/ There is no reason to must put dt devices under /sys/devices/soc0, they could also be under /sys/devices/platform, so we could pass NULL as parent when calling of_platform_default_populate. Following soc-imx8.c soc-imx-scu.c using device_initcall, need to change return type to int type for imx_soc_device_init. Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-05-20ARM: imx: pcm037: make pcm970_sja1000_platform_data staticMa Feng1-1/+1
Fix sparse warning: arch/arm/mach-imx/mach-pcm037.c:407:30: warning: symbol 'pcm970_sja1000_platform_data' was not declared. Should it be static? Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Ma Feng <mafeng.ma@huawei.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-05-15ARM: socfpga: Drop unneeded select of PCI_DOMAINS_GENERICGeert Uytterhoeven1-1/+0
Support for Altera SOCFPGA systems depends on ARCH_MULTI_V7, and thus on ARCH_MULTIPLATFORM. As the latter selects PCI_DOMAINS_GENERIC, there is no need for ARCH_SOCFPGA to select PCI_DOMAINS_GENERIC. Link: https://lore.kernel.org/r/20200505150722.1575-16-geert+renesas@glider.be Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Dinh Nguyen <dinguyen@kernel.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Dinh Nguyen <dinguyen@kernel.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-05-15ARM: prima2: Drop unneeded select of HAVE_SMPGeert Uytterhoeven1-1/+0
Support for CSR SiRF SoCs depends on ARCH_MULTI_V7. As the latter selects HAVE_SMP, there is no need for ARCH_ATLAS7 to select HAVE_SMP. Link: https://lore.kernel.org/r/20200505150722.1575-14-geert+renesas@glider.be Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Barry Song <baohua@kernel.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-05-15ARM: mvebu: Drop unneeded select of HAVE_SMPGeert Uytterhoeven1-3/+0
Support for Marvell Armada 375, 380, 385, and 39x SoCs depends on ARCH_MULTI_V7. As the latter selects HAVE_SMP, there is no need for MACH_ARMADA_375, MACH_ARMADA_38X, and MACH_ARMADA_39X to select HAVE_SMP. Link: https://lore.kernel.org/r/20200505150722.1575-12-geert+renesas@glider.be Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Gregory Clement <gregory.clement@bootlin.com> Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-05-15ARM: mmp: Drop unneeded select of COMMON_CLKGeert Uytterhoeven1-1/+0
Support for Marvell MMP ARMv5 platforms depends on ARCH_MULTI_V5, and thus on ARCH_MULTIPLATFORM. As the latter selects COMMON_CLK, there is no need for MACH_MMP_DT to select COMMON_CLK. Link: https://lore.kernel.org/r/20200505150722.1575-11-geert+renesas@glider.be Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Lubomir Rintel <lkundrak@v3.sk> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Lubomir Rintel <lkundrak@v3.sk> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-05-15ARM: davinci: Drop unneeded select of TIMER_OFGeert Uytterhoeven1-1/+0
Support for TI DaVinci SoCs depends on ARCH_MULTI_V5, and thus on ARCH_MULTIPLATFORM. As the latter selects TIMER_OF, there is no need for MACH_DA8XX_DT to select TIMER_OF. Link: https://lore.kernel.org/r/20200505150722.1575-9-geert+renesas@glider.be Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Sekhar Nori <nsekhar@ti.com> Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-05-15ARM: clps711x: Drop unneeded select of multi-platform selected optionsGeert Uytterhoeven1-5/+0
Support for Cirrus Logic EP721x/EP731x-based SoCs depends on ARCH_MULTI_V7, and thus on ARCH_MULTIPLATFORM. As the latter selects AUTO_ZRELADDR, TIMER_OF, COMMON_CLK, GENERIC_CLOCKEVENTS, and USE_OF, there is no need for ARCH_CLPS711X to select any of them. Link: https://lore.kernel.org/r/20200505150722.1575-8-geert+renesas@glider.be Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Alexander Shiyan <shc_work@mail.ru> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-05-15ARM: berlin: Drop unneeded select of HAVE_SMPGeert Uytterhoeven1-1/+0
Support for Marvell Berlin SoCs depends on ARCH_MULTI_V7. As the latter selects HAVE_SMP, there is no need for MACH_BERLIN_BG2 to select HAVE_SMP. Link: https://lore.kernel.org/r/20200505150722.1575-7-geert+renesas@glider.be Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Jisheng Zhang <Jisheng.Zhang@synaptics.com> Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-05-15ARM: aspeed: Drop unneeded select of HAVE_SMPGeert Uytterhoeven1-1/+0
Support for the 6th generation Aspeed SoCs depends on ARCH_MULTI_V7. As the latter selects HAVE_SMP, there is no need for MACH_ASPEED_G6 to select HAVE_SMP. Link: https://lore.kernel.org/r/20200505150722.1575-6-geert+renesas@glider.be Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Joel Stanley <joel@jms.id.au> Cc: Andrew Jeffery <andrew@aj.id.au> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Andrew Jeffery <andrew@aj.id.au> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-05-15ARM: asm9260: Drop unneeded select of GENERIC_CLOCKEVENTSGeert Uytterhoeven1-1/+0
Support for the Alphascale ASM9260 platform depends on ARCH_MULTI_V5, and thus on ARCH_MULTIPLATFORM. As the latter selects GENERIC_CLOCKEVENTS, there is no need for MACH_ASM9260 to select GENERIC_CLOCKEVENTS. Link: https://lore.kernel.org/r/20200505150722.1575-5-geert+renesas@glider.be Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Oleksij Rempel <linux@rempel-privat.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-05-15ARM: alpine: Drop unneeded select of HAVE_SMPGeert Uytterhoeven1-1/+0
Support for Annapurna Labs Alpine platforms depends on ARCH_MULTI_V7. As the latter selects HAVE_SMP, there is no need for ARCH_ALPINE to select HAVE_SMP. Link: https://lore.kernel.org/r/20200505150722.1575-4-geert+renesas@glider.be Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Tsahee Zidenberg <tsahee@annapurnalabs.com> Cc: Antoine Tenart <antoine.tenart@bootlin.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-05-15ARM: actions: Drop unneeded select of COMMON_CLKGeert Uytterhoeven1-1/+0
Support for Actions Semi SoCs depends on ARCH_MULTI_V7, and thus on ARCH_MULTIPLATFORM. As the latter selects COMMON_CLK, there is no need for ARCH_ACTIONS to select COMMON_CLK. Link: https://lore.kernel.org/r/20200505150722.1575-3-geert+renesas@glider.be Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Andreas Färber <afaerber@suse.de> Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-05-15ARM: arch timer: Drop unneeded select GENERIC_CLOCKEVENTSGeert Uytterhoeven1-1/+0
The ARM Architected timer is available on ARMv7 SoCs only. As both ARCH_MULTIPLATFORM and ARM_SINGLE_ARMV7M select GENERIC_CLOCKEVENTS, there is no need for HAVE_ARM_ARCH_TIMER to select GENERIC_CLOCKEVENTS. Link: https://lore.kernel.org/r/20200505150722.1575-2-geert+renesas@glider.be Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-05-15ARM: mmp: Replace <linux/clk-provider.h> by <linux/of_clk.h>Geert Uytterhoeven2-2/+2
The Marvell MMP platform code is not a clock provider, and just needs to call of_clk_init(). Hence it can include <linux/of_clk.h> instead of <linux/clk-provider.h>. Link: https://lore.kernel.org/r/20200505154536.4099-4-geert+renesas@glider.be Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Stephen Boyd <sboyd@kernel.org> Acked-by: Lubomir Rintel <lkundrak@v3.sk> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-05-15ARM: mediatek: Replace <linux/clk-provider.h> by <linux/of_clk.h>Geert Uytterhoeven1-1/+1
The Mediatek platform code is not a clock provider, and just needs to call of_clk_init(). Hence it can include <linux/of_clk.h> instead of <linux/clk-provider.h>. Link: https://lore.kernel.org/r/20200505154536.4099-3-geert+renesas@glider.be Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-05-15ARM/time: Replace <linux/clk-provider.h> by <linux/of_clk.h>Geert Uytterhoeven1-1/+1
The ARM time code is not a clock provider, and just needs to call of_clk_init(). Hence it can include <linux/of_clk.h> instead of <linux/clk-provider.h>. Link: https://lore.kernel.org/r/20200505154536.4099-2-geert+renesas@glider.be Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-05-15clk: versatile: Drop the legacy IM-PD1 clock codeRob Herring2-123/+0
Now that the non-DT IM-PD1 support code has been removed, drop the clock related code from clk-impd1.c. Link: https://lore.kernel.org/r/20200428204945.21067-1-robh@kernel.org Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Stephen Boyd <sboyd@kernel.org> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-clk@vger.kernel.org Signed-off-by: Rob Herring <robh@kernel.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-05-13ARM: vexpress: Don't select VEXPRESS_CONFIGRob Herring1-1/+0
CONFIG_VEXPRESS_CONFIG has 'default y if ARCH_VEXPRESS', so selecting is unnecessary. Selecting it also prevents setting CONFIG_VEXPRESS_CONFIG to a module. Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Acked-by: Liviu Dudau <liviu.dudau@arm.com> Signed-off-by: Rob Herring <robh@kernel.org>
2020-05-13bus: vexpress-config: Support building as moduleRob Herring2-7/+5
Enable building vexpress-config driver as a module. Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Acked-by: Liviu Dudau <liviu.dudau@arm.com> Signed-off-by: Rob Herring <robh@kernel.org>
2020-05-13vexpress: Move setting master site to vexpress-config busRob Herring3-37/+34
There's only a single caller of vexpress_config_set_master() from vexpress-sysreg.c. Let's just make the registers needed available to vexpress-config and move all the code there. The registers needed aren't used anywhere else either. With this, we can get rid of the private API between these 2 drivers. Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Liviu Dudau <liviu.dudau@arm.com> Acked-by: Sudeep Holla <sudeep.holla@arm.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Rob Herring <robh@kernel.org>
2020-05-13bus: vexpress-config: simplify config bus probingRob Herring1-97/+21
The vexpress-config initialization is dependent on the vexpress-syscfg driver probing. As vexpress-config was not a driver, deferred probe could not be used and instead initcall ordering was relied upon. This is fragile and doesn't work for modules. Let's move the config bus init into the vexpress-syscfg probe. This eliminates the initcall ordering requirement and the need to create a struct device and the "vexpress-config" class. Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Acked-by: Liviu Dudau <liviu.dudau@arm.com> Signed-off-by: Rob Herring <robh@kernel.org>
2020-05-13bus: vexpress-config: Merge vexpress-syscfg into vexpress-configRob Herring6-317/+274
The only thing that vexpress-syscfg does is provide a regmap to vexpress-config bus child devices. There's little reason to have 2 components for this. The current structure with initcall ordering requirements makes turning these components into modules more difficult. So let's start to simplify things and merge vexpress-syscfg into vexpress-config. There's no functional change in this commit and it's still separate components until subsequent commits. Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Liviu Dudau <liviu.dudau@arm.com> Signed-off-by: Rob Herring <robh@kernel.org>
2020-05-13mfd: vexpress-sysreg: Support building as a moduleRob Herring2-12/+5
Enable building the vexpress-sysreg driver as a module. As deferred probe between the vexpress components works now, we don't need to create struct devices early with of_platform_device_create(). Cc: Liviu Dudau <liviu.dudau@arm.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Rob Herring <robh@kernel.org>
2020-05-13mfd: vexpress-sysreg: Use devres API variantsRob Herring1-2/+2
Use the managed devm_gpiochip_add_data() and devm_mfd_add_devices() instead of their unmanaged counterparts. With this, no .remove() hook is needed for driver unbind. Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Liviu Dudau <liviu.dudau@arm.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Rob Herring <robh@kernel.org>
2020-05-13mfd: vexpress-sysreg: Drop unused syscon child devicesRob Herring1-36/+0
The "sys_id", "sys_misc" and "sys_procid" devices don't have a user anywhere in the tree and do nothing more than create a syscon regmap for a single register or 2. That's an overkill for creating child devices. Let's just remove them. Cc: Liviu Dudau <liviu.dudau@arm.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Rob Herring <robh@kernel.org>
2020-05-13mfd: vexpress-sysreg: Drop selecting CONFIG_CLKSRC_MMIORob Herring1-2/+1
Nothing in the VExpress sysregs nor the MFD child drivers use CONFIG_CLKSRC_MMIO. There's the 24MHz counter, but that's handled by drivers/clocksource/timer-versatile.c which doesn't use CONFIG_CLKSRC_MMIO either. So let's just drop CONFIG_CLKSRC_MMIO. As the !ARCH_USES_GETTIMEOFFSET dependency was added for CONFIG_CLKSRC_MMIO, that can be dropped, too. Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Liviu Dudau <liviu.dudau@arm.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Rob Herring <robh@kernel.org>
2020-05-13clk: vexpress-osc: Support building as a moduleRob Herring2-7/+5
Enable building the vexpress-osc clock driver as a module. Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Liviu Dudau <liviu.dudau@arm.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Michael Turquette <mturquette@baylibre.com> Cc: linux-clk@vger.kernel.org Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Reviewed-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Rob Herring <robh@kernel.org>
2020-05-12ARM: OMAP2+: pm33xx-core: Make am43xx_get_rtc_base_addr staticSamuel Zou1-1/+1
Fix the following sparse warning: arch/arm/mach-omap2/pm33xx-core.c:270:14: warning: symbol 'am43xx_get_rtc_base_addr' was not declared. The am43xx_get_rtc_base_addr has only call site within pm33xx-core.c It should be static Fixes: 8c5a916f4c88 ("ARM: OMAP2+: sleep33/43xx: Add RTC-Mode support") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Samuel Zou <zou_wei@huawei.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2020-05-12ARM: omap2: make omap5_erratum_workaround_801819 staticMa Feng1-1/+1
Fix sparse warning: arch/arm/mach-omap2/omap-smp.c:75:6: warning: symbol 'omap5_erratum_workaround_801819' was not declared. Should it be static? Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Ma Feng <mafeng.ma@huawei.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2020-05-11MAINTAINERS: Update Raspberry Pi development repositoryNicolas Saenz Julienne1-1/+1
Eric Anholt's repo isn't used anymore. List current one. Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Acked-by: Eric Anholt <eric@anholt.net> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2020-05-07ARM: omap2plus: Drop unneeded select of MIGHT_HAVE_CACHE_L2X0Geert Uytterhoeven1-1/+0
Support for TI AM43x SoCs depends on ARCH_MULTI_V7, which selects ARCH_MULTI_V6_V7. As the latter selects MIGHT_HAVE_CACHE_L2X0, there is no need for SOC_AM43XX to select MIGHT_HAVE_CACHE_L2X0. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Tony Lindgren <tony@atomide.com> Cc: linux-omap@vger.kernel.org Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2020-05-06ARM: mm: Remove virtual address print from B15 RAC driverFlorian Fainelli1-2/+1
We would be trying to print the kernel virtual address of the base register address which is not very useful and is not displayed by default because of pointer restriction. Print the Device Tree node name instead which is what was originally intended. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2020-05-06ARM: tegra: Create tegra20-cpufreq platform device on Tegra30Dmitry Osipenko1-0/+4
The tegra20-cpufreq now instantiates cpufreq-dt and Tegra30 is fully supported by that driver. Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com> Tested-by: Peter Geis <pgwipeout@gmail.com> Tested-by: Marcel Ziswiler <marcel@ziswiler.com> Tested-by: Jasper Korten <jja2000@gmail.com> Tested-by: David Heidelberg <david@ixit.cz> Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-05-06ARM: tegra: Don't enable PLLX while resuming from LP1 on Tegra30Dmitry Osipenko1-2/+7
PLLX may be kept disabled if cpufreq driver selects some other clock for CPU. In that case PLLX will be disabled later in the resume path by the CLK driver, which also can enable PLLX if necessary by itself. Thus there is no need to enable PLLX early during resume. Tegra114/124 CLK drivers do not manage PLLX on resume and thus they are left untouched by this patch. Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com> Tested-by: Peter Geis <pgwipeout@gmail.com> Tested-by: Marcel Ziswiler <marcel@ziswiler.com> Tested-by: Jasper Korten <jja2000@gmail.com> Tested-by: David Heidelberg <david@ixit.cz> Tested-by: Nicolas Chauvet <kwizart@gmail.com> Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-05-06ARM: tegra: Switch CPU to PLLP on resume from LP1 on Tegra30/114/124Dmitry Osipenko1-5/+2
The early-resume code shall not switch CPU to PLLX because PLLX configuration could be unstable or PLLX should be simply disabled if CPU enters into suspend running off some other PLL (the case if CPUFREQ driver is active). The actual burst policy is restored by the clock drivers. Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com> Tested-by: Peter Geis <pgwipeout@gmail.com> Tested-by: Marcel Ziswiler <marcel@ziswiler.com> Tested-by: Jasper Korten <jja2000@gmail.com> Tested-by: David Heidelberg <david@ixit.cz> Tested-by: Nicolas Chauvet <kwizart@gmail.com> Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-05-06ARM: tegra: Correct PL310 Auxiliary Control Register initializationDmitry Osipenko1-2/+2
The PL310 Auxiliary Control Register shouldn't have the "Full line of zero" optimization bit being set before L2 cache is enabled. The L2X0 driver takes care of enabling the optimization by itself. This patch fixes a noisy error message on Tegra20 and Tegra30 telling that cache optimization is erroneously enabled without enabling it for the CPU: L2C-310: enabling full line of zeros but not enabled in Cortex-A9 Cc: <stable@vger.kernel.org> Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Tested-by: Nicolas Chauvet <kwizart@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-05-06ARM: tegra: Do not fully reinitialize L2 on resumeDmitry Osipenko1-0/+4
ASUS TF300T device may not work properly if firmware is asked to fully re-initialize L2 cache after resume from LP2 suspend. The downstream kernel of TF300T uses different opcode to enable cache after resuming from LP2, this opcode also works fine on Nexus 7 and Ouya devices. Supposedly, this may be needed by an older firmware versions. Reported-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Tested-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Tested-by: Jasper Korten <jja2000@gmail.com> Tested-by: David Heidelberg <david@ixit.cz> Tested-by: Peter Geis <pgwipeout@gmail.com> Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-05-06ARM: tegra: Initialize r0 register for firmware wake-upDmitry Osipenko1-1/+6
Downstream kernel of ASUS TF300T sets r0 to #3. There is no explanation in downstream code whether this is really needed and some of T30 downstream kernels have and explicit comment telling that all arguments are ignored by firmware. Let's take a safe side by replicating behavior of the TF300T downstream kernel. This change works fine on Ouya and Nexus 7 devices. Tested-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Tested-by: Jasper Korten <jja2000@gmail.com> Tested-by: David Heidelberg <david@ixit.cz> Tested-by: Peter Geis <pgwipeout@gmail.com> Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-05-06firmware: tf: Different way of L2 cache enabling after LP2 suspendDmitry Osipenko2-2/+20
ASUS TF300T device may not work properly if firmware is asked to fully re-initialize L2 cache after resume from LP2 suspend. The downstream kernel of TF300T uses different opcode to enable cache after resuming from LP2, this opcode also works fine on Nexus 7 and Ouya devices. Supposedly, this may be needed by an older firmware versions. Reported-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Tested-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Tested-by: Jasper Korten <jja2000@gmail.com> Tested-by: David Heidelberg <david@ixit.cz> Tested-by: Peter Geis <pgwipeout@gmail.com> Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-05-05clk: vexpress-osc: Use the devres clock API variantsRob Herring1-5/+5
In preparation to enable the vexpress-osc clock driver as a module, convert the driver to use the managed devres clock API variants. With this, a driver .remove() hook is not needed. Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: linux-clk@vger.kernel.org Reviewed-by: Stephen Boyd <sboyd@kernel.org> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Liviu Dudau <liviu.dudau@arm.com> Signed-off-by: Rob Herring <robh@kernel.org>
2020-05-05clk: versatile: Only enable SP810 on 32-bit by defaultRob Herring1-1/+1
While 64-bit Arm reference platforms have SP810 for clocks for SP804 timers, they are not needed since the arch timers are used instead. Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: linux-clk@vger.kernel.org Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Reviewed-by: Stephen Boyd <sboyd@kernel.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Liviu Dudau <liviu.dudau@arm.com> Signed-off-by: Rob Herring <robh@kernel.org>
2020-05-05clk: versatile: Rework kconfig structureRob Herring7-16/+13
CONFIG_COMMON_CLK_VERSATILE doesn't really do anything other than hiding Arm Ltd reference platform clock drivers. It is both selected by the platforms that need it and has a 'depends on' for those platforms. Let's drop the selects and convert CONFIG_COMMON_CLK_VERSATILE into a menuconfig entry. With this make CONFIG_ICST visible. Move the 'select REGMAP_MMIO' to the drivers that require it (SP810 did not). This also has the side effect of enabling CONFIG_ICST for COMPILE_TEST as it was not visible before. Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Liviu Dudau <liviu.dudau@arm.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Reviewed-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Rob Herring <robh@kernel.org>
2020-05-05amba: Retry adding deferred devices at late_initcallRob Herring1-3/+11
If amba bus devices defer when adding, the amba bus code simply retries adding the devices every 5 seconds. This doesn't work well as it completely unsynchronized with starting the init process which can happen in less than 5 secs. Add a retry during late_initcall. If the amba devices are added, then deferred probe takes over. If the dependencies have not probed at this point, then there's no improvement over previous behavior. To completely solve this, we'd need to retry after every successful probe as deferred probe does. The list_empty() check now happens outside the mutex, but the mutex wasn't necessary in the first place. This needed to use deferred probe instead of fragile initcall ordering on 32-bit VExpress systems where the apb_pclk has a number of probe dependencies (vexpress-sysregs, vexpress-config). Cc: John Stultz <john.stultz@linaro.org> Cc: Saravana Kannan <saravanak@google.com> Cc: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Cc: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Russell King <linux@armlinux.org.uk> Tested-by: Sudeep Holla <sudeep.holla@arm.com> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Rob Herring <robh@kernel.org>
2020-05-05arm64: vexpress: Don't select CONFIG_POWER_RESET_VEXPRESSRob Herring1-2/+0
The VExpress power-off/reset driver is not needed on 64-bit platforms as PSCI power-off and reset can be used instead. Stop selecting it so it can be disabled and not always built-in. CONFIG_VEXPRESS_CONFIG can also be dropped as it was a dependency for CONFIG_POWER_RESET_VEXPRESS. Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Liviu Dudau <liviu.dudau@arm.com> Signed-off-by: Rob Herring <robh@kernel.org>
2020-05-05ARM: vexpress: Move vexpress_flags_set() into arch codeRob Herring6-24/+25
vexpress_flags_set() is only used by the platform SMP related code and has nothing to do with the vexpress-sysreg MFD driver other than both access the same h/w block. It's also only needed for 32-bit systems and must be built-in for them. Let's move vexpress_flags_set() closer to where it is being used. This will allow for vexpress-sysreg to be built as a module. Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Liviu Dudau <liviu.dudau@arm.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Rob Herring <robh@kernel.org>
2020-05-04ARM: debug-ll: Add support for r8a7742Lad Prabhakar1-0/+10
Enable low-level debugging support for RZ/G1H (R8A7742). RZ/G1H uses SCIFA2 for the debug console. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com> Link: https://lore.kernel.org/r/1588197415-13747-5-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-05-03Linux 5.7-rc4Linus Torvalds1-1/+1