[openwrt/openwrt] lantiq: ltq-ifxos: add kernel 5.10 compatiblity

[LEDE Commits]

mkresin pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/3bad9b0e87213af201208a3964c7d04ccb15b551

commit 3bad9b0e87213af201208a3964c7d04ccb15b551
Author: Mathias Kresin <dev at kresin.me>
AuthorDate: Sun Dec 27 12:26:28 2020 +0100

    lantiq: ltq-ifxos: add kernel 5.10 compatiblity
    
    ioremap has provided non-cached semantics by default since the Linux 2.6
    days and was removed with kernel version 5.6.
    
    Signed-off-by: Mathias Kresin <dev at kresin.me>
---
 package/kernel/lantiq/ltq-ifxos/patches/100-compat.patch | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/package/kernel/lantiq/ltq-ifxos/patches/100-compat.patch b/package/kernel/lantiq/ltq-ifxos/patches/100-compat.patch
index 80275e6b11..d9bbf8d7cc 100644
--- a/package/kernel/lantiq/ltq-ifxos/patches/100-compat.patch
+++ b/package/kernel/lantiq/ltq-ifxos/patches/100-compat.patch
@@ -132,7 +132,7 @@
     if ( check_mem_region(physicalAddr, addrRangeSize_byte) )
     {
        IFXOS_PRN_USR_ERR_NL( IFXOS, IFXOS_PRN_LEVEL_ERR, 
-@@ -98,6 +100,16 @@ IFX_int32_t IFXOS_Phy2VirtMap(
+@@ -98,10 +100,25 @@ IFX_int32_t IFXOS_Phy2VirtMap(
  
     /* can't fail */
     request_mem_region(physicalAddr, addrRangeSize_byte, pName);
@@ -148,4 +148,13 @@
 +#endif
  
     /* remap memory (not cache able): physical --> virtual */
++#if LINUX_VERSION_CODE < KERNEL_VERSION(5,6,0)
     pVirtAddr = (IFX_uint8_t *)ioremap_nocache( physicalAddr,
+                                                addrRangeSize_byte );
++#else
++   pVirtAddr = (IFX_uint8_t *)ioremap(physicalAddr, addrRangeSize_byte);
++#endif
++
+    if (pVirtAddr == IFX_NULL)
+    {
+       IFXOS_PRN_USR_ERR_NL( IFXOS, IFXOS_PRN_LEVEL_ERR,