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Subject[PATCH 1/1] video/framebuffer: fix bug: jpegview cannot work on framebuffer device other than 16BPP
Date
From: Michael Hennerich <michael.hennerich@analog.com>

Force fb_var_screeninfo color format on all Blackfin Framebuffer Drivers.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
---
drivers/video/bf54x-lq043fb.c | 15 ++++++++++++++-
drivers/video/bfin-t350mcqb-fb.c | 15 ++++++++++++++-
2 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/drivers/video/bf54x-lq043fb.c b/drivers/video/bf54x-lq043fb.c
index 7644ed2..37e60b1 100644
--- a/drivers/video/bf54x-lq043fb.c
+++ b/drivers/video/bf54x-lq043fb.c
@@ -335,7 +335,20 @@ static int bfin_bf54x_fb_check_var(struct fb_var_screeninfo *var,
struct fb_info *info)
{

- if (var->bits_per_pixel != LCD_BPP) {
+ switch (var->bits_per_pixel) {
+ case 24:/* TRUECOLOUR, 16m */
+ var->red.offset = 16;
+ var->green.offset = 8;
+ var->blue.offset = 0;
+ var->red.length = var->green.length = var->blue.length = 8;
+ var->transp.offset = 0;
+ var->transp.length = 0;
+ var->transp.msb_right = 0;
+ var->red.msb_right = 0;
+ var->green.msb_right = 0;
+ var->blue.msb_right = 0;
+ break;
+ default:
pr_debug("%s: depth not supported: %u BPP\n", __func__,
var->bits_per_pixel);
return -EINVAL;
diff --git a/drivers/video/bfin-t350mcqb-fb.c b/drivers/video/bfin-t350mcqb-fb.c
index a9b3ada..2a423d3 100644
--- a/drivers/video/bfin-t350mcqb-fb.c
+++ b/drivers/video/bfin-t350mcqb-fb.c
@@ -254,7 +254,20 @@ static int bfin_t350mcqb_fb_check_var(struct fb_var_screeninfo *var,
struct fb_info *info)
{

- if (var->bits_per_pixel != LCD_BPP) {
+ switch (var->bits_per_pixel) {
+ case 24:/* TRUECOLOUR, 16m */
+ var->red.offset = 0;
+ var->green.offset = 8;
+ var->blue.offset = 16;
+ var->red.length = var->green.length = var->blue.length = 8;
+ var->transp.offset = 0;
+ var->transp.length = 0;
+ var->transp.msb_right = 0;
+ var->red.msb_right = 0;
+ var->green.msb_right = 0;
+ var->blue.msb_right = 0;
+ break;
+ default:
pr_debug("%s: depth not supported: %u BPP\n", __func__,
var->bits_per_pixel);
return -EINVAL;
--
1.5.6


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