Merge tag 'mips_5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS updates from Paul Burton:
 "The main MIPS changes for 5.5:

   - Atomics-related code sees some rework & cleanup, most notably
     allowing Loongson LL/SC errata workarounds to be more bulletproof &
     their correctness to be checked at build time.

   - Command line setup code is simplified somewhat, resolving various
     corner cases.

   - MIPS kernels can now be built with kcov code coverage support.

   - We can now build with CONFIG_FORTIFY_SOURCE=y.

   - Miscellaneous cleanups.

  And some platform specific changes:

   - We now disable some broken TLB functionality on certain Ingenic
     systems, and JZ4780 systems gain some devicetree nodes to support
     more devices.

   - Loongson support sees a number of cleanups, and we gain initial
     support for Loongson 3A R4 systems.

   - We gain support for MediaTek MT7688-based GARDENA Smart Gateway
     systems.

   - SGI IP27 (Origin 2*) see a number of fixes, cleanups &
     simplifications.

   - SGI IP30 (Octane) systems are now supported"

* tag 'mips_5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (107 commits)
  MIPS: SGI-IP27: Enable ethernet phy on second Origin 200 module
  MIPS: PCI: Fix fake subdevice ID for IOC3
  MIPS: Ingenic: Disable abandoned HPTLB function.
  MIPS: PCI: remember nasid changed by set interrupt affinity
  MIPS: SGI-IP27: Fix crash, when CPUs are disabled via nr_cpus parameter
  mips: add support for folded p4d page tables
  mips: drop __pXd_offset() macros that duplicate pXd_index() ones
  mips: fix build when "48 bits virtual memory" is enabled
  MIPS: math-emu: Reuse name array in debugfs_fpuemu()
  MIPS: allow building with kcov coverage
  MIPS: Loongson64: Drop setup_pcimap
  MIPS: Loongson2ef: Convert to early_printk_8250
  MIPS: Drop CPU_SUPPORTS_UNCACHED_ACCELERATED
  MIPS: Loongson{2ef, 32, 64} convert to generic fw cmdline
  MIPS: Drop pmon.h
  MIPS: Loongson: Unify LOONGSON3/LOONGSON64 Kconfig usage
  MIPS: Loongson: Rename LOONGSON1 to LOONGSON32
  MIPS: Loongson: Fix return value of loongson_hwmon_init
  MIPS: add support for SGI Octane (IP30)
  MIPS: PCI: make phys_to_dma/dma_to_phys for pci-xtalk-bridge common
  ...

2 files changed, 10 insertions, 1 deletions

diff --git a/include/drm/drm_cache.h b/include/drm/drm_cache.h
index 987ff16b9420..e9ad4863d915 100644
--- a/include/drm/drm_cache.h
+++ b/include/drm/drm_cache.h
@@ -45,7 +45,7 @@ static inline bool drm_arch_can_wc_memory(void)
 {
 #if defined(CONFIG_PPC) && !defined(CONFIG_NOT_COHERENT_CACHE)
 	return false;
-#elif defined(CONFIG_MIPS) && defined(CONFIG_CPU_LOONGSON3)
+#elif defined(CONFIG_MIPS) && defined(CONFIG_CPU_LOONGSON64)
 	return false;
 #elif defined(CONFIG_ARM) || defined(CONFIG_ARM64)
 	/*
diff --git a/include/linux/nvmem-consumer.h b/include/linux/nvmem-consumer.h
index 8f8be5b00060..02dc4aa992b2 100644
--- a/include/linux/nvmem-consumer.h
+++ b/include/linux/nvmem-consumer.h
@@ -89,6 +89,9 @@ void nvmem_del_cell_lookups(struct nvmem_cell_lookup *entries,
 int nvmem_register_notifier(struct notifier_block *nb);
 int nvmem_unregister_notifier(struct notifier_block *nb);
 
+struct nvmem_device *nvmem_device_find(void *data,
+			int (*match)(struct device *dev, const void *data));
+
 #else
 
 static inline struct nvmem_cell *nvmem_cell_get(struct device *dev,
@@ -204,6 +207,12 @@ static inline int nvmem_unregister_notifier(struct notifier_block *nb)
 	return -EOPNOTSUPP;
 }
 
+static inline struct nvmem_device *nvmem_device_find(void *data,
+			int (*match)(struct device *dev, const void *data))
+{
+	return NULL;
+}
+
 #endif /* CONFIG_NVMEM */
 
 #if IS_ENABLED(CONFIG_NVMEM) && IS_ENABLED(CONFIG_OF)