Hello, While working on adding support for the SSD132X family of 4-bit grayscale Solomon OLED panel controllers, I noticed a few things in the driver that can be improved and make extending to support other chip families easier. I've split the preparatory patches in this series and will post the actual SSD132X support as a separate patch-set once this one is merged. Best regards, Javier Changes in v2: - List per controller default width/height values in DT schema (Maxime Ripard). Javier Martinez Canillas (5): drm/ssd130x: Make default width and height to be controller dependent dt-bindings: display: ssd1307fb: Remove default width and height values drm/ssd130x: Set the page height value in the device info data drm/ssd130x: Don't allocate buffers on each plane update drm/ssd130x: Remove hardcoded bits-per-pixel in ssd130x_buf_alloc() .../bindings/display/solomon,ssd1307fb.yaml | 28 +++- drivers/gpu/drm/solomon/ssd130x.c | 124 ++++++++++++------ drivers/gpu/drm/solomon/ssd130x.h | 6 + 3 files changed, 113 insertions(+), 45 deletions(-) -- 2.40.1