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fbdev fixes for 3.17

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Minor fbdev fixes for da8xx-fb, atmel_lcdfb, arm clcd and chipsfb.
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Merge tag 'fbdev-fixes-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux

Pull fbdev fixes from Tomi Valkeinen:
 "Minor fbdev fixes for da8xx-fb, atmel_lcdfb, arm clcd and chipsfb"

* tag 'fbdev-fixes-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux:
  video: da8xx-fb: preserve display width when changing HSYNC
  video: of: display_timing: double free on error
  drivers: video: fbdev: atmel_lcdfb.c: fix error return code
  video: ARM CLCD: Fix calculation of bits-per-pixel
  fbdev: Remove __init from chips_hw_init() to fix build failure
This commit is contained in:
Linus Torvalds 2014-08-29 11:59:46 -07:00
commit 115619b34f
5 changed files with 23 additions and 7 deletions
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23
drivers/video/fbdev/amba-clcd.c
View file

@ -24,6 +24,7 @@
#include <linux/list.h>
#include <linux/amba/bus.h>
#include <linux/amba/clcd.h>
#include <linux/bitops.h>
#include <linux/clk.h>
#include <linux/hardirq.h>
#include <linux/dma-mapping.h>
@ -650,6 +651,7 @@ static int clcdfb_of_init_display(struct clcd_fb *fb)
{
struct device_node *endpoint;
int err;
unsigned int bpp;
u32 max_bandwidth;
u32 tft_r0b0g0[3];
@ -667,11 +669,22 @@ static int clcdfb_of_init_display(struct clcd_fb *fb)
err = of_property_read_u32(fb->dev->dev.of_node, "max-memory-bandwidth",
&max_bandwidth);
if (!err)
fb->panel->bpp = 8 * max_bandwidth / (fb->panel->mode.xres *
fb->panel->mode.yres * fb->panel->mode.refresh);
else
fb->panel->bpp = 32;
if (!err) {
/*
* max_bandwidth is in bytes per second and pixclock in
* pico-seconds, so the maximum allowed bits per pixel is
* 8 * max_bandwidth / (PICOS2KHZ(pixclock) * 1000)
* Rearrange this calculation to avoid overflow and then ensure
* result is a valid format.
*/
bpp = max_bandwidth / (1000 / 8)
/ PICOS2KHZ(fb->panel->mode.pixclock);
bpp = rounddown_pow_of_two(bpp);
if (bpp > 32)
bpp = 32;
} else
bpp = 32;
fb->panel->bpp = bpp;
#ifdef CONFIG_CPU_BIG_ENDIAN
fb->panel->cntl |= CNTL_BEBO;

2
drivers/video/fbdev/atmel_lcdfb.c
View file

@ -1102,12 +1102,14 @@ static int atmel_lcdfb_of_init(struct atmel_lcdfb_info *sinfo)
timings = of_get_display_timings(display_np);
if (!timings) {
dev_err(dev, "failed to get display timings\n");
ret = -EINVAL;
goto put_display_node;
}
timings_np = of_find_node_by_name(display_np, "display-timings");
if (!timings_np) {
dev_err(dev, "failed to find display-timings node\n");
ret = -ENODEV;
goto put_display_node;
}

2
drivers/video/fbdev/chipsfb.c
View file

@ -273,7 +273,7 @@ static struct chips_init_reg chips_init_xr[] = {
{ 0xa8, 0x00 }
};
static void __init chips_hw_init(void)
static void chips_hw_init(void)
{
int i;

2
drivers/video/fbdev/da8xx-fb.c
View file

@ -419,7 +419,7 @@ static void lcd_cfg_horizontal_sync(int back_porch, int pulse_width,
{
u32 reg;
reg = lcdc_read(LCD_RASTER_TIMING_0_REG) & 0xf;
reg = lcdc_read(LCD_RASTER_TIMING_0_REG) & 0x3ff;
reg |= (((back_porch-1) & 0xff) << 24)
| (((front_porch-1) & 0xff) << 16)
| (((pulse_width-1) & 0x3f) << 10);

1
drivers/video/of_display_timing.c
View file

@ -236,6 +236,7 @@ timingfail:
if (native_mode)
of_node_put(native_mode);
display_timings_release(disp);
disp = NULL;
entryfail:
kfree(disp);
dispfail: