diff options
| -rw-r--r-- | drivers/video/fbdev/ssd1307fb.c | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/drivers/video/fbdev/ssd1307fb.c b/drivers/video/fbdev/ssd1307fb.c index f685d244fa2a..85eeda0fc2e4 100644 --- a/drivers/video/fbdev/ssd1307fb.c +++ b/drivers/video/fbdev/ssd1307fb.c @@ -38,6 +38,11 @@ #define SSD1307FB_SET_COM_PINS_CONFIG 0xda #define SSD1307FB_SET_VCOMH 0xdb +#define REFRESHRATE 1 + +static u_int refreshrate = REFRESHRATE; +module_param(refreshrate, uint, 0); + struct ssd1307fb_par; struct ssd1307fb_deviceinfo { @@ -263,11 +268,6 @@ static void ssd1307fb_deferred_io(struct fb_info *info, ssd1307fb_update_display(info->par); } -static struct fb_deferred_io ssd1307fb_defio = { - .delay = HZ, - .deferred_io = ssd1307fb_deferred_io, -}; - static int ssd1307fb_init(struct ssd1307fb_par *par) { int ret; @@ -466,6 +466,7 @@ static int ssd1307fb_probe(struct i2c_client *client, { struct fb_info *info; struct device_node *node = client->dev.of_node; + struct fb_deferred_io *ssd1307fb_defio; u32 vmem_size; struct ssd1307fb_par *par; u8 *vmem; @@ -536,10 +537,20 @@ static int ssd1307fb_probe(struct i2c_client *client, goto fb_alloc_error; } + ssd1307fb_defio = devm_kzalloc(&client->dev, sizeof(struct fb_deferred_io), GFP_KERNEL); + if (!ssd1307fb_defio) { + dev_err(&client->dev, "Couldn't allocate deferred io.\n"); + ret = -ENOMEM; + goto fb_alloc_error; + } + + ssd1307fb_defio->delay = HZ / refreshrate; + ssd1307fb_defio->deferred_io = ssd1307fb_deferred_io; + info->fbops = &ssd1307fb_ops; info->fix = ssd1307fb_fix; info->fix.line_length = par->width / 8; - info->fbdefio = &ssd1307fb_defio; + info->fbdefio = ssd1307fb_defio; info->var = ssd1307fb_var; info->var.xres = par->width; |