diff options
| author | r80085 <thomas.peng@freescale.com> | 2010-09-03 15:37:18 -0500 |
|---|---|---|
| committer | Alan Tull <r80115@freescale.com> | 2010-09-25 09:52:10 -0500 |
| commit | 057450a8090e78f6bb0750581087602ca150f0dd (patch) | |
| tree | dfbdbf8a73131fd88b52fa1ac34d080b028e3620 /drivers/video/mxc | |
| parent | 30f6fc381026ad024d019bf5f41762863fdb9d64 (diff) | |
ENGR00127069 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>
Diffstat (limited to 'drivers/video/mxc')
| -rw-r--r-- | drivers/video/mxc/mxc_epdc_fb.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/drivers/video/mxc/mxc_epdc_fb.c b/drivers/video/mxc/mxc_epdc_fb.c index 27dd4855ae98..7d8abc3f2b3e 100644 --- a/drivers/video/mxc/mxc_epdc_fb.c +++ b/drivers/video/mxc/mxc_epdc_fb.c @@ -45,6 +45,7 @@ #include <linux/mxcfb.h> #include <linux/gpio.h> #include <linux/regulator/driver.h> +#include <linux/fsl_devices.h> #include "epdc_regs.h" @@ -55,6 +56,7 @@ /*#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 +72,7 @@ #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 +1200,7 @@ 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 +2387,7 @@ 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 +2421,9 @@ 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 +2469,10 @@ 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); @@ -2497,7 +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; |