Linux kernel development work - see feature branches https://git.zx2c4.com/linux-dev/atom/arch/arm/mach-at91?h=master 2022-10-11T17:59:59Z 2022-10-11T17:59:59Z Linus Torvalds torvalds@linux-foundation.org 2022-10-11T17:59:59Z urn:sha1:979bb59016aed7c7c58baca2307d9d13890cc6ab Pull pin control updates from Linus Walleij: "There is nothing exciting going on, no core changes, just a few drivers and cleanups. New drivers: - Cypress CY8C95x0 chip pin control support, along with an immediate cleanup - Mediatek MT8188 SoC pin control support - Qualcomm SM8450 and SC8280XP LPASS (low power audio subsystem) pin control support - Qualcomm PM7250, PM8450 - Rockchip RV1126 SoC pin control support Improvements: - Fix some missing pins in the Armada 37xx driver - Convert Broadcom and Nomadik drivers to use PINCTRL_PINGROUP() macro - Fix some GPIO irq_chips to be immutable - Massive Qualcomm device tree binding cleanup, with more to come" * tag 'pinctrl-v6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (119 commits) MAINTAINERS: adjust STARFIVE JH7100 PINCTRL DRIVER after file movement pinctrl: starfive: Rename "pinctrl-starfive" to "pinctrl-starfive-jh7100" pinctrl: Create subdirectory for StarFive drivers dt-bindings: pinctrl: st,stm32: Document interrupt-controller property dt-bindings: pinctrl: st,stm32: Document gpio-hog pattern property dt-bindings: pinctrl: st,stm32: Document gpio-line-names pinctrl: st: stop abusing of_get_named_gpio() pinctrl: wpcm450: Correct the fwnode_irq_get() return value check pinctrl: bcm: Remove unused struct bcm6328_pingroup pinctrl: qcom: restrict drivers per ARM/ARM64 pinctrl: bcm: ns: Remove redundant dev_err call gpio: rockchip: request GPIO mux to pinctrl when setting direction pinctrl: rockchip: add pinmux_ops.gpio_set_direction callback pinctrl: cy8c95x0: Align function names in cy8c95x0_pmxops pinctrl: cy8c95x0: Drop atomicity on operations on push_pull pinctrl: cy8c95x0: Lock register accesses in cy8c95x0_set_mux() pinctrl: sunxi: sun50i-h5: Switch to use dev_err_probe() helper pinctrl: stm32: Switch to use dev_err_probe() helper dt-bindings: qcom-pmic-gpio: Add PM7250B and PM8450 bindings pinctrl: qcom: spmi-gpio: Add compatible for PM7250B ... 2022-10-06T18:22:25Z Linus Torvalds torvalds@linux-foundation.org 2022-10-06T18:22:25Z urn:sha1:41fc64a0550b86f4428e8d3fa23ab97678a65ae8 Pull ARM SoC updates from Arnd Bergmann: "The main changes this time are for the organization of the Kconfig files, introducing per-vendor top-level options on arm64 to match those on arm32, and making the platform selection on arm32 more uniform, in particular for the remaining StrongARM platforms that still have a couple of special cases compared to the more recent ones. I also did a cleanup of the old Footbridge platform, which was the last holdout for the phys_to_dma()/dma_to_phys() interface that is now completely gone from arm32, completing work started by Christoph Hellwig" * tag 'arm-soc-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (21 commits) ARM: aspeed: Kconfig: Fix indentation ARM: Drop CMDLINE_* dependency on ATAGS ARM: Drop CMDLINE_FORCE dependency on !ARCH_MULTIPLATFORM ARM: s3c: remove orphan declarations from arch/arm/mach-s3c/devs.h pxa: Drop if with an always false condition ARM: orion: fix include path ARM: shmobile: Drop selecting SOC_BUS arm64: renesas: Drop selecting SOC_BUS ARM: disallow PCI with MMU=n again ARM: footbridge: remove custom DMA address handling MAINTAINERS: Add BCM4908 maintainer to BCMBCA entry ARM: footbridge: move isa-dma support into footbridge ARM: footbridge: remove leftover from personal-server ARM: footbridge: remove addin mode arm64: Kconfig.platforms: Group NXP platforms together arm64: Kconfig.platforms: Re-organized Broadcom menu ARM: make ARCH_MULTIPLATFORM user-visible ARM: fix XIP_KERNEL dependencies ARM: Kconfig: clean up platform selection ARM: simplify machdirs/platdirs handling ... 2022-09-02T22:19:23Z Claudiu Beznea claudiu.beznea@microchip.com 2022-08-31T13:56:35Z urn:sha1:a575207583676298f3999d41d86d81f7172fe950 Move gpio suspend/resume execution local to driver and let it execute as close as possible to the moment the machine specific PM code is executed (by setting it to .noirq member of dev_pm_ops). With this the at91_pinctrl_gpio_suspend()/at91_pinctrl_gpio_resume() calls were removed from arch/arm/mach-at91/pm.c and also a header has been removed. The patch has been checked on sama5d3_xplained, sam9x60ek, sama5d2_xplained, sama7g5ek boards. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220831135636.3176406-3-claudiu.beznea@microchip.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org> 2022-08-31T07:28:18Z Claudiu Beznea claudiu.beznea@microchip.com 2022-08-26T08:39:21Z urn:sha1:7a94b83a7dc551607b6c4400df29151e6a951f07 On SAMA7G5, when resuming from backup and self-refresh, the bootloader performs DDR PHY recalibration by restoring the value of ZQ0SR0 (stored in RAM by Linux before going to backup and self-refresh). It has been discovered that the current procedure doesn't work for all possible values that might go to ZQ0SR0 due to hardware bug. The workaround to this is to avoid storing some values in ZQ0SR0. Thus Linux will read the ZQ0SR0 register and cache its value in RAM after processing it (using modified_gray_code array). The bootloader will restore the processed value. Fixes: d2d4716d8384 ("ARM: at91: pm: save ddr phy calibration data to securam") Suggested-by: Frederic Schumacher <frederic.schumacher@microchip.com> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220826083927.3107272-4-claudiu.beznea@microchip.com 2022-08-31T07:27:57Z Claudiu Beznea claudiu.beznea@microchip.com 2022-08-26T08:39:20Z urn:sha1:a02875c4cbd6f3d2f33d70cc158a19ef02d4b84f It has been discovered that on some parts, from time to time, self-refresh procedure doesn't work as expected. Debugging and investigating it proved that disabling AC DLL introduce glitches in RAM controllers which leads to unexpected behavior. This is confirmed as a hardware bug. DLL bypass disables 3 DLLs: 2 DX DLLs and AC DLL. Thus, keep only DX DLLs disabled. This introduce 6mA extra current consumption on VDDCORE when switching to any ULP mode or standby mode but the self-refresh procedure still works. Fixes: f0bbf17958e8 ("ARM: at91: pm: add self-refresh support for sama7g5") Suggested-by: Frederic Schumacher <frederic.schumacher@microchip.com> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Tested-by: Cristian Birsan <cristian.birsan@microchip.com> Link: https://lore.kernel.org/r/20220826083927.3107272-3-claudiu.beznea@microchip.com 2022-08-18T14:44:59Z Arnd Bergmann arnd@arndb.de 2022-07-27T07:26:45Z urn:sha1:92481c7d14b8030418f00c4b4ec65556565d892d There are a number of old Makefile.boot files that remain from the multiplatform conversion, and three that are still in use. These provide the "ZRELADDR", "PARAMS_PHYS" and "INITRD_PHYS" values that are platform specific. It turns out that we can generally just derive this from information that is available elsewhere: - ZRELADDR is normally detected at runtime with the CONFIG_AUTO_ZRELADDR flag, but also needed to be passed to for 'make uImage'. In a multiplatform kernel, one always has to pass this as the $(LOADADDR) variable, but in the StrongARM kernels we can derive it from the sum of $(CONFIG_PHYS_OFFSET) and $(TEXT_OFFSET) that are already known. - PARAMS_PHYS and INITRD_PHYS are only used for bootpImage, which in turn is only used for the pre-ATAGS 'param_struct' based boot interface on StrongARM based machines with old boot loaders. They can both be derived from CONFIG_PHYS_OFFSET and a machine specific offset for the initrd, so all of the logic for these can be part of arch/arm/boot/bootp/Makefile. Signed-off-by: Arnd Bergmann <arnd@arndb.de> 2022-08-02T15:02:59Z Linus Torvalds torvalds@linux-foundation.org 2022-08-02T15:02:59Z urn:sha1:e233cc59d08f9bd389d4e8eaf71063150110b9b9 Pull ARM SoC updates from Arnd Bergmann: "The updates for arch/arm/mach-* platform code this time are mainly minor cleanups. Most notably, the DaVinci DM644x/DM646x SoC support gets removed. This was also scheduled for later removal early next year, but Linus Walleij asked for having them removed earlier to avoid problems for the GPIO subsystem" * tag 'arm-soc-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (38 commits) ARM: at91: setup outer cache .write_sec() callback if needed ARM: at91: add sam_linux_is_optee_available() function ARM: Marvell: Update PCIe fixup ARM: bcmbca: Include full family name in Kconfig ARM: bcm: NSP: Removed forced thermal selection ARM: debug: bcmbca: Replace ARCH_BCM_63XX with ARCH_BCMBCA arm: bcmbca: Add BCMBCA sub platforms arm: bcmbca: Move BCM63138 ARCH_BCM_63XX to ARCH_BCMBCA MAINTAINERS: Move BCM63138 to bcmbca arch entry ARM: shmobile: rcar-gen2: Increase refcount for new reference ARM: davinci: Delete DM646x board files ARM: davinci: Delete DM644x board files firmware: xilinx: Add TF_A_PM_REGISTER_SGI SMC call cpufreq: zynq: Fix refcount leak in zynq_get_revision ARM: OMAP2+: Kconfig: Fix indentation ARM: OMAP2+: Fix refcount leak in omap3xxx_prm_late_init ARM: OMAP2+: pdata-quirks: Fix refcount leak bug ARM: OMAP2+: display: Fix refcount leak bug ARM: OMAP2+: Fix refcount leak in omapdss_init_of ARM: imx25: support silicon revision 1.2 ... 2022-07-20T08:05:48Z Clément Léger clement.leger@bootlin.com 2022-06-06T14:57:01Z urn:sha1:3b5a7ca7d252b96e9623b262414713828b2bd68f When running under OP-TEE, the L2 cache is configured by OP-TEE and the sam platform code does not allow any modification yet. Setup a dummy .write_sec() callback to avoid triggering exceptions when Linux tries to modify the L2 cache configuration. Signed-off-by: Clément Léger <clement.leger@bootlin.com> [claudiu.beznea: keep .init_early populated only for SAMA5D2, remove sam_secure_init() from sama5d2_init() as it is also called in sama5_secure_cache_init()] Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220606145701.185552-3-clement.leger@bootlin.com 2022-07-20T08:03:45Z Clément Léger clement.leger@bootlin.com 2022-06-06T14:57:00Z urn:sha1:c71572aa544ca64cbd2ff2052c79bc7e3573baed Add sam_linux_is_optee_available() which allows to know if OP-TEE is available for Linux. This function is used by code which needs to know if we running with OP-TEE available or not. Signed-off-by: Clément Léger <clement.leger@bootlin.com> [claudiu.beznea: edit commit title and message, renamed sam_linux_is_in_normal_world() into sam_linux_is_optee_available()] Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220606145701.185552-2-clement.leger@bootlin.com 2022-06-28T09:55:32Z Fabio Estevam festevam@denx.de 2022-06-22T11:48:10Z urn:sha1:91d60e259c0f58c855f88f3fe5b7909aec563525 at91_pm_secure_init() is used inside sama5d2_pm_init(), which has the __init notation. Pass the __init notation to at91_pm_secure_init() as well to fix the following section mismatch warning: WARNING: modpost: vmlinux.o(.text.unlikely+0x2138): Section mismatch in reference from the function at91_pm_secure_init() to the (unknown reference) .init.rodata:(unknown) Fixes: f2f5cf78a333 ("ARM: at91: pm: add support for sama5d2 secure suspend") Signed-off-by: Fabio Estevam <festevam@denx.de> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220622114810.1186330-1-festevam@gmail.com