Re: [PATCH] fbtft: Improve damage_range to mark only changed rows

On Wed, Jan 28, 2026 at 05:57:20PM +0900, Waffle0823 wrote:

Instead of marking the entire display as dirty, calculate
start_row and end_row based on off/len and mark only those rows.
This improves performance for partial framebuffer updates.

Signed-off-by: Waffle0283 csshin9928@gmail.com

Please use your real name that you use to sign legal documents.  The
email address is in the wrong format.

Have you tested this patch?  What was the speedup?

regards,
dan carpenter