kernel/linux.git/drivers/soc/imx, branch v4.19.77

Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

2018-08-23T20:52:46+00:00

Pull ARM SoC driver updates from Olof Johansson: "Some of the larger changes this merge window: - Removal of drivers for Exynos5440, a Samsung SoC that never saw widespread use. - Uniphier support for USB3 and SPI reset handling - Syste control and SRAM drivers and bindings for Allwinner platforms - Qualcomm AOSS (Always-on subsystem) reset controller drivers - Raspberry Pi hwmon driver for voltage - Mediatek pwrap (pmic) support for MT6797 SoC" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (52 commits) drivers/firmware: psci_checker: stash and use topology_core_cpumask for hotplug tests soc: fsl: cleanup Kconfig menu soc: fsl: dpio: Convert DPIO documentation to .rst staging: fsl-mc: Remove remaining files staging: fsl-mc: Move DPIO from staging to drivers/soc/fsl staging: fsl-dpaa2: eth: move generic FD defines to DPIO soc: fsl: qe: gpio: Add qe_gpio_set_multiple usb: host: exynos: Remove support for Exynos5440 clk: samsung: Remove support for Exynos5440 soc: sunxi: Add the A13, A23 and H3 system control compatibles reset: uniphier: add reset control support for SPI cpufreq: exynos: Remove support for Exynos5440 ata: ahci-platform: Remove support for Exynos5440 soc: imx6qp: Use GENPD_FLAG_ALWAYS_ON for PU errata soc: mediatek: pwrap: add mt6351 driver for mt6797 SoCs soc: mediatek: pwrap: add pwrap driver for mt6797 SoCs soc: mediatek: pwrap: fix cipher init setting error dt-bindings: pwrap: mediatek: add pwrap support for MT6797 reset: uniphier: add USB3 core reset control dt-bindings: reset: uniphier: add USB3 core reset support ...

Merge branches 'pm-core', 'pm-domains', 'pm-sleep', 'acpi-pm' and 'pm-cpuidle'

2018-08-14T07:48:10+00:00

Merge changes in the PM core, system-wide PM infrastructure, generic power domains (genpd) framework, ACPI PM infrastructure and cpuidle for 4.19. * pm-core: driver core: Add flag to autoremove device link on supplier unbind driver core: Rename flag AUTOREMOVE to AUTOREMOVE_CONSUMER * pm-domains: PM / Domains: Introduce dev_pm_domain_attach_by_name() PM / Domains: Introduce option to attach a device by name to genpd PM / Domains: dt: Add a power-domain-names property * pm-sleep: PM / reboot: Eliminate race between reboot and suspend PM / hibernate: Mark expected switch fall-through x86/power/hibernate_64: Remove VLA usage PM / hibernate: cast PAGE_SIZE to int when comparing with error code * acpi-pm: ACPI / PM: save NVS memory for ASUS 1025C laptop ACPI / PM: Default to s2idle in all machines supporting LP S0 * pm-cpuidle: ARM: cpuidle: silence error on driver registration failure

Merge tag 'imx-drivers-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/drivers

2018-07-21T22:05:16+00:00

i.MX drivers update for 4.19: - Handle i.MX6SL chip errata ERR006287 in the safest possible way by keeping the DISP domain always-on, because Upon resuming from power gating, the modules in the display power domain (eLCDIF, EPDC, PXP and SPDC) might fail to perform register reads correctly. - Use GENPD_FLAG_ALWAYS_ON flag for i.MX6QP PU ERR009619 handling. It is functionally identical to the exsiting implementation but simpler and slightly faster. * tag 'imx-drivers-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: soc: imx6qp: Use GENPD_FLAG_ALWAYS_ON for PU errata soc: imx: gpc: Disable 6sl display power gating for ERR006287 Signed-off-by: Olof Johansson

soc: imx: gpc: restrict register range for regmap access

2018-07-19T02:24:00+00:00

GPC registers are NOT continuous, some registers are reserved and accessing them from userspace will trigger external abort, add regmap register access table to avoid below abort: root@imx6slevk:~# cat /sys/kernel/debug/regmap/20dc000.gpc/registers [ 108.480477] Unhandled fault: imprecise external abort (0x1406) at 0xb6db5004 [ 108.487985] pgd = 42b54bfd [ 108.490741] [b6db5004] *pgd=ba1b7831 [ 108.494386] Internal error: : 1406 [#1] SMP ARM [ 108.498943] Modules linked in: [ 108.502043] CPU: 0 PID: 389 Comm: cat Not tainted 4.18.0-rc1-00074-gc9f1f60-dirty #482 [ 108.509982] Hardware name: Freescale i.MX6 SoloLite (Device Tree) [ 108.516123] PC is at regmap_mmio_read32le+0x20/0x24 [ 108.521031] LR is at regmap_mmio_read+0x40/0x60 [ 108.525586] pc : [] lr : [] psr: 20060093 [ 108.531875] sp : eccf1d98 ip : eccf1da8 fp : eccf1da4 [ 108.537122] r10: ec2d3800 r9 : eccf1f60 r8 : ecfc0000 [ 108.542370] r7 : eccf1e2c r6 : eccf1e2c r5 : 00000028 r4 : ec338e00 [ 108.548920] r3 : 00000000 r2 : eccf1e2c r1 : f0980028 r0 : 00000000 [ 108.555474] Flags: nzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment none [ 108.562720] Control: 10c5387d Table: acf4004a DAC: 00000051 [ 108.568491] Process cat (pid: 389, stack limit = 0xd4318a65) [ 108.574174] Stack: (0xeccf1d98 to 0xeccf2000) Fixes: 721cabf6c660 ("soc: imx: move PGC handling to a new GPC driver") Signed-off-by: Anson Huang Reviewed-by: Fabio Estevam Signed-off-by: Shawn Guo

soc: imx6qp: Use GENPD_FLAG_ALWAYS_ON for PU errata

2018-07-17T06:12:14+00:00

This is functionally identical but simpler and slightly faster. The PU domain is turned on at boot time and never turned off. In the current implementation the pm core will repeatedly call power_off when the domain is unused and get -EBUSY back. If the domain is marked as "always on" instead the pm core won't even attempt to turn it off. In theory on 6qp it is safe to turn PU off in suspend, however that is best accomplished with a new core flag. Signed-off-by: Leonard Crestez Reviewed-by: Lucas Stach Reviewed-by: Ulf Hansson Signed-off-by: Shawn Guo

soc: imx: gpc: Disable 6sl display power gating for ERR006287

2018-07-11T13:18:24+00:00

The imx6sl chip errata document describes ERR006287 like this: > Upon resuming from power gating, the modules in the display power domain (eLCDIF, EPDC, PXP and SPDC) might fail to perform register reads correctly. > When the modules listed above are used, do not use power gating on the display power domain. Link: https://www.nxp.com/docs/en/errata/IMX6SLCE.pdf#page=62 Handle this in the safest possible way by keeping the DISP domain always-on. Signed-off-by: Leonard Crestez Reviewed-by: Lucas Stach Reviewed-by: Ulf Hansson Signed-off-by: Shawn Guo

driver core: Rename flag AUTOREMOVE to AUTOREMOVE_CONSUMER

2018-07-09T10:14:31+00:00

Now that we want to add another flag to autoremove the device link on supplier unbind, it's fair to rename the existing flag from DL_FLAG_AUTOREMOVE to DL_FLAG_AUTOREMOVE_CONSUMER so that we can add similar flag for supplier later. And, while we are touching device.h, fix a doc build warning. Signed-off-by: Vivek Gautam Reviewed-by: Ulf Hansson Signed-off-by: Rafael J. Wysocki

soc: imx: gpcv2: correct PGC offset

2018-06-17T07:37:27+00:00

Correct MIPI/PCIe/USB_HSIC's PGC offset based on design RTL, the values in the Reference Manual (Rev. 1, 01/2018 and the older ones) are incorrect. The correct offset values should be as below: 0x800 ~ 0x83F: PGC for core0 of A7 platform; 0x840 ~ 0x87F: PGC for core1 of A7 platform; 0x880 ~ 0x8BF: PGC for SCU of A7 platform; 0xA00 ~ 0xA3F: PGC for fastmix/megamix; 0xC00 ~ 0xC3F: PGC for MIPI PHY; 0xC40 ~ 0xC7F: PGC for PCIe_PHY; 0xC80 ~ 0xCBF: PGC for USB OTG1 PHY; 0xCC0 ~ 0xCFF: PGC for USB OTG2 PHY; 0xD00 ~ 0xD3F: PGC for USB HSIC PHY; Signed-off-by: Anson Huang Fixes: 03aa12629fc4 ("soc: imx: Add GPCv2 power gating driver") Acked-by: Andrey Smirnov Reviewed-by: Fabio Estevam Signed-off-by: Shawn Guo

soc: imx: gpc: Do not pass static memory as platform data

2018-04-23T09:03:15+00:00

Platform device core assumes the ownership of dev.platform_data as well as that it is dynamically allocated and it will try to kfree it as a part of platform_device_release(). Change the code to use platform_device_add_data() instead of a pointer to a static memory to avoid causing a BUG() when calling platform_device_put(). The problem can be reproduced by artificially enabling the error path of platform_device_add() call (around line 452). Cc: Stefan Agner Cc: Lucas Stach Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Andrey Smirnov Signed-off-by: Shawn Guo

soc: imx: gpcv2: Do not pass static memory as platform data

2018-04-23T09:03:02+00:00

Platform device core assumes the ownership of dev.platform_data as well as that it is dynamically allocated and it will try to kfree it as a part of platform_device_release(). Change the code to use platform_device_add_data() n instead of a pointer to a static memory to avoid causing a BUG() when calling platform_device_put(). The problem can be reproduced by artificially enabling the error path of platform_device_add() call (around line 357). Note that this change also allows us to constify imx7_pgc_domains, since we no longer need to be able to modify it. Cc: Stefan Agner Cc: Lucas Stach Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Andrey Smirnov Signed-off-by: Shawn Guo