dm: core: Drop the inclusion of linux/compat.h in dm.h

Most files don't need this header and it pulls in quite of lots of stuff,
malloc() in particular. Drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>

board/hisilicon/poplar/poplar.c

@@ -4,9 +4,9 @@
  * Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
  */
 
+#include <common.h>
 #include <cpu_func.h>
 #include <dm.h>
-#include <common.h>
 #include <init.h>
 #include <asm/io.h>
 #include <dm/platform_data/serial_pl01x.h>

drivers/ram/imxrt_sdram.c

@@ -9,6 +9,7 @@
 #include <dm.h>
 #include <ram.h>
 #include <asm/io.h>
+#include <linux/err.h>
 
 /* SDRAM Command Code */
 #define SD_CC_ARD		0x0     /* Master Bus (AXI) command - Read */

drivers/spi/nxp_fspi.c

@@ -44,6 +44,7 @@
 #include <linux/sizes.h>
 #include <linux/iopoll.h>
 #include <linux/bug.h>
+#include <linux/err.h>
 
 /*
  * The driver only uses one single LUT entry, that is updated on

include/dm/device.h

@@ -14,7 +14,6 @@
 #include <dm/uclass-id.h>
 #include <fdtdec.h>
 #include <linker_lists.h>
-#include <linux/compat.h>
 #include <linux/kernel.h>
 #include <linux/list.h>
 #include <linux/printk.h>

include/linux/compat.h

@@ -123,7 +123,10 @@ static inline void kmem_cache_destroy(struct kmem_cache *cachep)
 
 #define KERNEL_VERSION(a,b,c)	(((a) << 16) + ((b) << 8) + (c))
 
+/* This is also defined in ARMv8's mmu.h */
+#ifndef PAGE_SIZE
 #define PAGE_SIZE	4096
+#endif
 
 /* drivers/char/random.c */
 #define get_random_bytes(...)

include/phy.h

@@ -10,6 +10,7 @@
 #define _PHY_H
 
 #include <dm.h>
+#include <linux/errno.h>
 #include <linux/list.h>
 #include <linux/mii.h>
 #include <linux/ethtool.h>