[v2,2/3] drivers/video/fbdev: use ioremap_wt() instead of __ioremap(_PAGE_WRITETHRU)

Commit Message

Christophe Leroy Aug. 27, 2018, 4:10 p.m. UTC

_PAGE_WRITETHRU is a target specific flag. Prefer generic functions.

Signed-off-by: Christophe Leroy <[e-mail]>
---
 v2: removed unnecessary includes headers

 drivers/video/fbdev/controlfb.c  |  5 +----
 drivers/video/fbdev/platinumfb.c |  5 +----
 drivers/video/fbdev/valkyriefb.c | 12 ++++++------
 3 files changed, 8 insertions(+), 14 deletions(-)

Patch

diff --git a/drivers/video/fbdev/controlfb.c b/drivers/video/fbdev/controlfb.c
index 8d14b29aafea..9cb0ef7ac29e 100644
--- a/drivers/video/fbdev/controlfb.c
+++ b/drivers/video/fbdev/controlfb.c
@@ -48,9 +48,7 @@ 
 #include <linux/nvram.h>
 #include <linux/adb.h>
 #include <linux/cuda.h>
-#include <asm/io.h>
 #include <asm/prom.h>
-#include <asm/pgtable.h>
 #include <asm/btext.h>
 
 #include "macmodes.h"
@@ -715,8 +713,7 @@  static int __init control_of_init(struct device_node *dp)
 		goto error_out;
 	}
 	/* map at most 8MB for the frame buffer */
-	p->frame_buffer = __ioremap(p->frame_buffer_phys, 0x800000,
-				    _PAGE_WRITETHRU);
+	p->frame_buffer = ioremap_wt(p->frame_buffer_phys, 0x800000);
 
 	if (!p->control_regs_phys ||
 	    !request_mem_region(p->control_regs_phys, p->control_regs_size,
diff --git a/drivers/video/fbdev/platinumfb.c b/drivers/video/fbdev/platinumfb.c
index 377d3399a3ad..bf6b7fb83cf4 100644
--- a/drivers/video/fbdev/platinumfb.c
+++ b/drivers/video/fbdev/platinumfb.c
@@ -32,9 +32,7 @@ 
 #include <linux/nvram.h>
 #include <linux/of_device.h>
 #include <linux/of_platform.h>
-#include <asm/io.h>
 #include <asm/prom.h>
-#include <asm/pgtable.h>
 
 #include "macmodes.h"
 #include "platinumfb.h"
@@ -577,8 +575,7 @@  static int platinumfb_probe(struct platform_device* odev)
 
 	/* frame buffer - map only 4MB */
 	pinfo->frame_buffer_phys = pinfo->rsrc_fb.start;
-	pinfo->frame_buffer = __ioremap(pinfo->rsrc_fb.start, 0x400000,
-					_PAGE_WRITETHRU);
+	pinfo->frame_buffer = ioremap_wt(pinfo->rsrc_fb.start, 0x400000);
 	pinfo->base_frame_buffer = pinfo->frame_buffer;
 
 	/* registers */
diff --git a/drivers/video/fbdev/valkyriefb.c b/drivers/video/fbdev/valkyriefb.c
index 275fb98236d3..d51c3a8009cb 100644
--- a/drivers/video/fbdev/valkyriefb.c
+++ b/drivers/video/fbdev/valkyriefb.c
@@ -54,13 +54,11 @@ 
 #include <linux/nvram.h>
 #include <linux/adb.h>
 #include <linux/cuda.h>
-#include <asm/io.h>
 #ifdef CONFIG_MAC
 #include <asm/macintosh.h>
 #else
 #include <asm/prom.h>
 #endif
-#include <asm/pgtable.h>
 
 #include "macmodes.h"
 #include "valkyriefb.h"
@@ -318,7 +316,7 @@  static void __init valkyrie_choose_mode(struct fb_info_valkyrie *p)
 int __init valkyriefb_init(void)
 {
 	struct fb_info_valkyrie	*p;
-	unsigned long frame_buffer_phys, cmap_regs_phys, flags;
+	unsigned long frame_buffer_phys, cmap_regs_phys;
 	int err;
 	char *option = NULL;
 
@@ -337,7 +335,6 @@  int __init valkyriefb_init(void)
 	/* Hardcoded addresses... welcome to 68k Macintosh country :-) */
 	frame_buffer_phys = 0xf9000000;
 	cmap_regs_phys = 0x50f24000;
-	flags = IOMAP_NOCACHE_SER; /* IOMAP_WRITETHROUGH?? */
 #else /* ppc (!CONFIG_MAC) */
 	{
 		struct device_node *dp;
@@ -354,7 +351,6 @@  int __init valkyriefb_init(void)
 
 		frame_buffer_phys = r.start;
 		cmap_regs_phys = r.start + 0x304000;
-		flags = _PAGE_WRITETHRU;
 	}
 #endif /* ppc (!CONFIG_MAC) */
 
@@ -369,7 +365,11 @@  int __init valkyriefb_init(void)
 	}
 	p->total_vram = 0x100000;
 	p->frame_buffer_phys = frame_buffer_phys;
-	p->frame_buffer = __ioremap(frame_buffer_phys, p->total_vram, flags);
+#ifdef CONFIG_MAC
+	p->frame_buffer = ioremap_nocache(frame_buffer_phys, p->total_vram);
+#else
+	p->frame_buffer = ioremap_wt(frame_buffer_phys, p->total_vram);
+#endif
 	p->cmap_regs_phys = cmap_regs_phys;
 	p->cmap_regs = ioremap(p->cmap_regs_phys, 0x1000);
 	p->valkyrie_regs_phys = cmap_regs_phys+0x6000;