[ added dri-devel ML to Cc: ]

Hi,

Sorry for the delay.

On 5/13/20 8:48 PM, Rodrigo Alencar wrote:

From: Rodrigo Rolim Mendes de Alencar alencar.fmce@imbel.gov.br

This patch provides support for displays like VGM128064B0W10, which requires a column offset of 2, i.e., its segments starts in SEG2 and ends in SEG129.

Signed-off-by: Rodrigo Alencar 455.rodrigo.alencar@gmail.com

Please resend with "From:" & "Signed-off-by:" tags fixed to match so I can merge the patch.

Best regards, -- Bartlomiej Zolnierkiewicz Samsung R&D Institute Poland Samsung Electronics

---

Documentation/devicetree/bindings/display/ssd1307fb.txt | 1 + drivers/video/fbdev/ssd1307fb.c | 8 ++++++-- 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/ssd1307fb.txt b/Documentation/devicetree/bindings/display/ssd1307fb.txt index 27333b9551b3..2dcb6d12d137 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 8e06ba912d60..102f941104c0 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;