linux/drivers/of/platform.c, branch v4.9

Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus

2016-10-15T16:26:12Z

Pull MIPS updates from Ralf Baechle: "This is the main MIPS pull request for 4.9: MIPS core arch code: - traps: 64bit kernels should read CP0_EBase 64bit - traps: Convert ebase to KSEG0 - c-r4k: Drop bc_wback_inv() from icache flush - c-r4k: Split user/kernel flush_icache_range() - cacheflush: Use __flush_icache_user_range() - uprobes: Flush icache via kernel address - KVM: Use __local_flush_icache_user_range() - c-r4k: Fix flush_icache_range() for EVA - Fix -mabi=64 build of vdso.lds - VDSO: Drop duplicated -I*/-E* aflags - tracing: move insn_has_delay_slot to a shared header - tracing: disable uprobe/kprobe on compact branch instructions - ptrace: Fix regs_return_value for kernel context - Squash lines for simple wrapper functions - Move identification of VP(E) into proc.c from smp-mt.c - Add definitions of SYNC barrierstype values - traps: Ensure full EBase is written - tlb-r4k: If there are wired entries, don't use TLBINVF - Sanitise coherentio semantics - dma-default: Don't check hw_coherentio if device is non-coherent - Support per-device DMA coherence - Adjust MIPS64 CAC_BASE to reflect Config.K0 - Support generating Flattened Image Trees (.itb) - generic: Introduce generic DT-based board support - generic: Convert SEAD-3 to a generic board - Enable hardened usercopy - Don't specify STACKPROTECTOR in defconfigs Octeon: - Delete dead code and files across the platform. - Change to use all memory into use by default. - Rename upper case variables in setup code to lowercase. - Delete legacy hack for broken bootloaders. - Leave maintaining the link state to the actual ethernet/PHY drivers. - Add DTS for D-Link DSR-500N. - Fix PCI interrupt routing on D-Link DSR-500N. Pistachio: - Remove ANDROID_TIMED_OUTPUT from defconfig TX39xx: - Move GPIO setup from .mem_setup() to .arch_init() - Convert to Common Clock Framework TX49xx: - Move GPIO setup from .mem_setup() to .arch_init() - Convert to Common Clock Framework txx9wdt: - Add missing clock (un)prepare calls for CCF BMIPS: - Add PW, GPIO SDHCI and NAND device node names - Support APPENDED_DTB - Add missing bcm97435svmb to DT_NONE - Rename bcm96358nb4ser to bcm6358-neufbox4-sercom - Add DT examples for BCM63268, BCM3368 and BCM6362 - Add support for BCM3368 and BCM6362 PCI - Reduce stack frame usage - Use struct list_head lists - Support for CONFIG_PCI_DOMAINS_GENERIC - Make pcibios_set_cache_line_size an initcall - Inline pcibios_assign_all_busses - Split pci.c into pci.c & pci-legacy.c - Introduce CONFIG_PCI_DRIVERS_LEGACY - Support generic drivers CPC - Convert bare 'unsigned' to 'unsigned int' - Avoid lock when MIPS CM >= 3 is present GIC: - Delete unused file smp-gic.c mt7620: - Delete unnecessary assignment for the field "owner" from PCI BCM63xx: - Let clk_disable() return immediately if clk is NULL pm-cps: - Change FSB workaround to CPU blacklist - Update comments on barrier instructions - Use MIPS standard lightweight ordering barrier - Use MIPS standard completion barrier - Remove selection of sync types - Add MIPSr6 CPU support - Support CM3 changes to Coherence Enable Register SMP: - Wrap call to mips_cpc_lock_other in mips_cm_lock_other - Introduce mechanism for freeing and allocating IPIs cpuidle: - cpuidle-cps: Enable use with MIPSr6 CPUs. SEAD3: - Rewrite to use DT and generic kernel feature. USB: - host: ehci-sead3: Remove SEAD-3 EHCI code FBDEV: - cobalt_lcdfb: Drop SEAD3 support dt-bindings: - Document a binding for simple ASCII LCDs auxdisplay: - img-ascii-lcd: driver for simple ASCII LCD displays irqchip i8259: - i8259: Add domain before mapping parent irq - i8259: Allow platforms to override poll function - i8259: Remove unused i8259A_irq_pending Malta: - Rewrite to use DT of/platform: - Probe "isa" busses by default CM: - Print CM error reports upon bus errors Module: - Migrate exception table users off module.h and onto extable.h - Make various drivers explicitly non-modular: - Audit and remove any unnecessary uses of module.h mailmap: - Canonicalize to Qais' current email address. Documentation: - MIPS supports HAVE_REGS_AND_STACK_ACCESS_API Loongson1C: - Add CPU support for Loongson1C - Add board support - Add defconfig - Add RTC support for Loongson1C board All this except one Documentation fix has sat in linux-next and has survived Imagination's automated build test system" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (127 commits) Documentation: MIPS supports HAVE_REGS_AND_STACK_ACCESS_API MIPS: ptrace: Fix regs_return_value for kernel context MIPS: VDSO: Drop duplicated -I*/-E* aflags MIPS: Fix -mabi=64 build of vdso.lds MIPS: Enable hardened usercopy MIPS: generic: Convert SEAD-3 to a generic board MIPS: generic: Introduce generic DT-based board support MIPS: Support generating Flattened Image Trees (.itb) MIPS: Adjust MIPS64 CAC_BASE to reflect Config.K0 MIPS: Print CM error reports upon bus errors MIPS: Support per-device DMA coherence MIPS: dma-default: Don't check hw_coherentio if device is non-coherent MIPS: Sanitise coherentio semantics MIPS: PCI: Support generic drivers MIPS: PCI: Introduce CONFIG_PCI_DRIVERS_LEGACY MIPS: PCI: Split pci.c into pci.c & pci-legacy.c MIPS: PCI: Inline pcibios_assign_all_busses MIPS: PCI: Make pcibios_set_cache_line_size an initcall MIPS: PCI: Support for CONFIG_PCI_DOMAINS_GENERIC MIPS: PCI: Use struct list_head lists ...

of/platform: Probe "isa" busses by default

2016-10-06T15:31:00Z

Since commit 44a7185c2ae6 ("of/platform: Add common method to populate default bus") platforms calling of_platform_bus_probe from an initcall is either a rather unsafe race with of_platform_default_populate_init or a no-op. The MIPS Malta board needs to probe devices under an ISA bus, which we do support in the of_busses array but until now haven't included in of_default_bus_match_table. Add an "isa" entry to of_default_bus_match_table such that we can just accept use of of_platform_default_populate_init & remove the Malta-specific match table in a later patch. Signed-off-by: Paul Burton Acked-by: Rob Herring Cc: Frank Rowand Cc: linux-mips@linux-mips.org Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/14275/ Signed-off-by: Ralf Baechle

of/platform: Initialise dev->fwnode appropriately

2016-09-15T13:35:56Z

Whilst we're some of the way towards a universal firmware property interface, drivers which deal with both OF and ACPI probing end up having to do things like this: dev->of_node ? &dev->of_node->fwnode : dev->fwnode This seems unnecessary, when the OF code could instead simply fill in the device's fwnode when binding the of_node, and let the drivers use dev->fwnode either way. Let's give it a go and see what falls out. Signed-off-by: Robin Murphy Signed-off-by: Rob Herring

of/platform: disable the of_platform_default_populate_init() for all the ppc boards

2016-08-12T19:27:29Z

With the commit 44a7185c2ae6 ("of/platform: Add common method to populate default bus"), a default function is introduced to populate the default bus and this function is invoked at the arch_initcall_sync level. But a lot of ppc boards use machine_device_initcall() to populate the default bus. This means that the default populate function has higher priority and would override the arch specific population of the bus. The side effect is that some arch specific bus are not probed, then cause various malfunction due to the miss of some devices. Since it is very possible to introduce bugs if we simply change the initcall level for all these boards(about 30+). This just disable this default function for all the ppc boards. Signed-off-by: Kevin Hao Signed-off-by: Rob Herring

ramoops: use DT reserved-memory bindings

2016-08-05T18:21:36Z

Instead of a ramoops-specific node, use a child node of /reserved-memory. This requires that of_platform_device_create() be explicitly called for the node, though, since "/reserved-memory" does not have its own "compatible" property. Suggested-by: Rob Herring Signed-off-by: Kees Cook Acked-by: Rob Herring

of: use pr_fmt prefix for all console printing

2016-07-18T21:57:42Z

Clean-up all the DT printk functions to use common pr_fmt prefix. Some print statements such as kmalloc errors were redundant, so just drop those. Cc: Frank Rowand Cc: Pantelis Antoniou Reviewed-by: Frank Rowand Signed-off-by: Rob Herring

Revert "of/platform: export of_default_bus_match_table"

2016-06-23T20:01:02Z

This reverts commit b80443c2211c7daaabd20fbbe9e7beb3fa3408e0. After covering to use helper of_platform_default_populate() to populate the default bus, no need to export of_default_bus_match_table anymore. Reviewed-by: Masahiro Yamada Cc: Masahiro Yamada Cc: Rob Herring Cc: Frank Rowand Cc: Grant Likely Signed-off-by: Kefeng Wang Signed-off-by: Rob Herring

of/platform: Add common method to populate default bus

2016-06-23T19:58:30Z

The arch code calls of_platform_populate() with default match table when it wants to populate default bus. This patch introduce a new of_platform_default_populate_init() and make it arch_initcall_sync(it should be later than some iommu configration, eg, of_iommu_init() and swiotlb_late_init in arm64), then we can finish above job in common method. In order to avoid the default bus being populated twice, simply checking the flag of bus node whether has be set OF_POPULATED_BUS or not. After that, we can safely remove the caller in arch code. Btw, add debug print in of_platform_populate(), and use __func__ to print function's name of of_platform_bus_create(). Cc: Rob Herring Cc: Frank Rowand Cc: Grant Likely Signed-off-by: Kefeng Wang Signed-off-by: Rob Herring

of/platform: Allow secondary compatible match in of_dev_lookup

2016-04-15T15:45:32Z

We currently try to match of_dev_auxdata based on compatible, IO address, and device name. But in some cases we have multiple instances of drivers that can use the same auxdata. Let's add an additional secondary lookup for generic compatible match for auxdata if no device specific match is found. This does not change the existing matching, and still allows adding device specific auxdata. This simplifies things as specifying the IO address and device name is prone errors as it requires maintaining an in kernel database for each SoC. To specify a generic match, all that is needed is to add a OF_DEV_AUXDATA entry with no device instance specified: OF_DEV_AUXDATA("pinctrl-single", 0, NULL, &pcs_pdata), As the auxdata is already initialized only for the booted SoC, there's not much of a chance of getting things wrong. Let's also fix two checkpatch warnings while at it to add a space before parenthesis in the for loop, and remove a comparison to NULL by using !auxdata->compatible. Acked-by: Rob Herring Signed-off-by: Tony Lindgren

of/platform: export of_default_bus_match_table

2016-01-05T15:20:44Z

Currently, drivers/bus/uniphier-system-bus.c is kept from being a module due to the unresolved reference to of_default_bus_match_table. Refer to commit 326ea45aa827 ("bus: uniphier: allow only built-in driver"). Signed-off-by: Masahiro Yamada Signed-off-by: Rob Herring