diff options
| author | r80085 <thomas.peng@freescale.com> | 2010-09-03 15:37:18 -0500 |
|---|---|---|
| committer | r80085 <thomas.peng@freescale.com> | 2010-09-03 15:37:18 -0500 |
| commit | d788419654f78f46140155ca1ff1449baec7f6ab (patch) | |
| tree | 81a32612d38ec0a6513e2b4883c68e6067d7ecc2 | |
| parent | fa2f4e3e72defd9aaca006fdf9369c69a92c63a7 (diff) | |
ENGR00127069 MX508/EPDC: Increase FB memory size for X-accel
Added "x_mem=" option (e.g. video=mxcepdcfb:E60,bpp=16,x_mem=10000)
to configure extra FB memory for X-accel.
Signed-off-by: r80085 <thomas.peng@freescale.com>
| -rw-r--r-- | drivers/video/mxc/mxc_epdc_fb.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/video/mxc/mxc_epdc_fb.c b/drivers/video/mxc/mxc_epdc_fb.c index b4168e0d0caa..8fff730289b9 100644 --- a/drivers/video/mxc/mxc_epdc_fb.c +++ b/drivers/video/mxc/mxc_epdc_fb.c @@ -55,6 +55,7 @@ /*#define DEFAULT_PANEL_HW_INIT*/ #define NUM_SCREENS 2 +#define NUM_SCREENS_X 16 #define EPDC_NUM_LUTS 16 #define EPDC_MAX_NUM_UPDATES 20 #define INVALID_LUT -1 @@ -70,6 +71,7 @@ #define POWER_STATE_ON 1 static unsigned long default_bpp = 16; +static unsigned long g_num_screens = NUM_SCREENS; struct update_marker_data { u32 update_marker; @@ -1197,7 +1199,7 @@ static int mxc_epdc_fb_check_var(struct fb_var_screeninfo *var, } var->xres_virtual = ALIGN(var->xres, 32); - var->yres_virtual = ALIGN(var->yres, 128) * NUM_SCREENS; + var->yres_virtual = ALIGN(var->yres, 128) * g_num_screens; var->height = -1; var->width = -1; @@ -2384,6 +2386,7 @@ int __devinit mxc_epdc_fb_probe(struct platform_device *pdev) struct update_data_list *upd_list; struct update_data_list *plist, *temp_list; int i; + unsigned long x_mem_size = 0; #ifdef CONFIG_FRAMEBUFFER_CONSOLE struct mxcfb_update_data update; #endif @@ -2417,6 +2420,9 @@ int __devinit mxc_epdc_fb_probe(struct platform_device *pdev) if (!strncmp(opt, "bpp=", 4)) fb_data->default_bpp = simple_strtoul(opt + 4, NULL, 0); + else if (!strncmp(opt, "x_mem=", 6)) + x_mem_size = + simple_strtoul(opt + 6, NULL, 0); else panel_str = opt; } @@ -2462,7 +2468,10 @@ int __devinit mxc_epdc_fb_probe(struct platform_device *pdev) yres_virt = ALIGN(vmode->yres, 128); buf_size = xres_virt * yres_virt * fb_data->default_bpp/8; - fb_data->map_size = PAGE_ALIGN(buf_size) * NUM_SCREENS; + if (x_mem_size > 0) + g_num_screens = NUM_SCREENS_X; + + fb_data->map_size = PAGE_ALIGN(buf_size) * g_num_screens; dev_dbg(&pdev->dev, "memory to allocate: %d\n", fb_data->map_size); res = platform_get_resource(pdev, IORESOURCE_MEM, 0); @@ -2498,7 +2507,7 @@ int __devinit mxc_epdc_fb_probe(struct platform_device *pdev) var_info->yres = vmode->yres; var_info->xres_virtual = xres_virt; /* Additional screens allow for panning and buffer flipping */ - var_info->yres_virtual = yres_virt * NUM_SCREENS; + var_info->yres_virtual = yres_virt * g_num_screens; var_info->pixclock = vmode->pixclock; var_info->left_margin = vmode->left_margin; |