diff --git a/Documentation/devicetree/bindings/display/ssd1307fb.txt b/Documentation/devicetree/bindings/display/ssd1307fb.txt index 27333b9551b33d302a31a908e389d05176a171da..2dcb6d12d137153664bc4aa7b04983a409658a59 100644 --- a/Documentation/devicetree/bindings/display/ssd1307fb.txt +++ b/Documentation/devicetree/bindings/display/ssd1307fb.txt @@ -19,6 +19,7 @@ Optional properties: - vbat-supply: The supply for VBAT - solomon,segment-no-remap: Display needs normal (non-inverted) data column to segment mapping + - solomon,col-offset: Offset of columns (COL/SEG) that the screen is mapped to. - solomon,com-seq: Display uses sequential COM pin configuration - solomon,com-lrremap: Display uses left-right COM pin remap - solomon,com-invdir: Display uses inverted COM pin scan direction diff --git a/drivers/video/fbdev/ssd1307fb.c b/drivers/video/fbdev/ssd1307fb.c index 09425ec317ba2cbcc37da7b80f216b63036fc7b2..eda448b7a0c9d8ceb0d8beb2eb394c06b1cbb57c 100644 --- a/drivers/video/fbdev/ssd1307fb.c +++ b/drivers/video/fbdev/ssd1307fb.c @@ -74,6 +74,7 @@ struct ssd1307fb_par { struct fb_info *info; u8 lookup_table[4]; u32 page_offset; + u32 col_offset; u32 prechargep1; u32 prechargep2; struct pwm_device *pwm; @@ -458,11 +459,11 @@ static int ssd1307fb_init(struct ssd1307fb_par *par) if (ret < 0) return ret; - ret = ssd1307fb_write_cmd(par->client, 0x0); + ret = ssd1307fb_write_cmd(par->client, par->col_offset); if (ret < 0) return ret; - ret = ssd1307fb_write_cmd(par->client, par->width - 1); + ret = ssd1307fb_write_cmd(par->client, par->col_offset + par->width - 1); if (ret < 0) return ret; @@ -626,6 +627,9 @@ static int ssd1307fb_probe(struct i2c_client *client) if (device_property_read_u32(dev, "solomon,page-offset", &par->page_offset)) par->page_offset = 1; + if (device_property_read_u32(dev, "solomon,col-offset", &par->col_offset)) + par->col_offset = 0; + if (device_property_read_u32(dev, "solomon,com-offset", &par->com_offset)) par->com_offset = 0;