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video: ssd1307fb: Use screen_buffer instead of screen_base

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sparse reported incorrect type due to different address spaces.
The screen_base is __iomem, but the memory is not from a device so we can
use screen_buffer instead and avoid some type casts.

Signed-off-by: Marko Kohtala <marko.kohtala@okoko.fi>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: David Airlie <airlied@linux.ie>
Cc: Michal Vokáč <michal.vokac@ysoft.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190618074111.9309-2-marko.kohtala@okoko.fi
This commit is contained in:
Marko Kohtala 2019-06-18 10:41:06 +03:00 committed by Bartlomiej Zolnierkiewicz
parent 8cbff03bb0
commit ed1dc7d565
1 changed files with 5 additions and 5 deletions
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10
drivers/video/fbdev/ssd1307fb.c
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@ -149,7 +149,7 @@ static inline int ssd1307fb_write_cmd(struct i2c_client *client, u8 cmd)
static void ssd1307fb_update_display(struct ssd1307fb_par *par)
{
struct ssd1307fb_array *array;
u8 *vmem = par->info->screen_base;
u8 *vmem = par->info->screen_buffer;
int i, j, k;
array = ssd1307fb_alloc_array(par->width * par->height / 8,
@ -212,7 +212,7 @@ static ssize_t ssd1307fb_write(struct fb_info *info, const char __user *buf,
struct ssd1307fb_par *par = info->par;
unsigned long total_size;
unsigned long p = *ppos;
u8 __iomem *dst;
void *dst;
total_size = info->fix.smem_len;
@ -225,7 +225,7 @@ static ssize_t ssd1307fb_write(struct fb_info *info, const char __user *buf,
if (!count)
return -EINVAL;
dst = (void __force *) (info->screen_base + p);
dst = info->screen_buffer + p;
if (copy_from_user(dst, buf, count))
return -EFAULT;
@ -546,7 +546,7 @@ static int ssd1307fb_probe(struct i2c_client *client,
struct fb_deferred_io *ssd1307fb_defio;
u32 vmem_size;
struct ssd1307fb_par *par;
u8 *vmem;
void *vmem;
int ret;
if (!node) {
@ -654,7 +654,7 @@ static int ssd1307fb_probe(struct i2c_client *client,
info->var.blue.length = 1;
info->var.blue.offset = 0;
info->screen_base = (u8 __force __iomem *)vmem;
info->screen_buffer = vmem;
info->fix.smem_start = __pa(vmem);
info->fix.smem_len = vmem_size;