Re: [PATCH v3 3/3] drm/tinydrm: add driver for ST7735R panels

On 12/21/2017 01:23 PM, David Lechner wrote:

This adds a new driver for Sitronix ST7735R display panels.

This has been tested using an Adafruit 1.8" TFT.

Signed-off-by: David Lechner david@lechnology.com

<snip>

• mipi_dbi_command(mipi, ST7735R_GAMCTRP1, 0x0f, 0x1a, 0x0f, 0x18, 0x2f,

• 	 0x28, 0x20, 0x22, 0x1f, 0x1b, 0x23, 0x37, 0x00, 0x07,
  

• 	 0x02, 0x10);
  

• mipi_dbi_command(mipi, ST7735R_GAMCTRN1, 0x0f, 0x1b, 0x0f, 0x17, 0x33,

• 	 0x2c, 0x29, 0x2e, 0x30, 0x30, 0x39, 0x3f, 0x00, 0x07,
  

• 	 0x03, 0x10);
  

By the way, how do you know what is the "right" gamma curve? I think I copied this from the generic st7735r driver in fbtft, but I noticed that there is also a different curve for the Adafruit 1.8" display in fbtft. I'm wondering if I should have used that one instead. I can't really tell a difference looking at the display.