This patch series adds a DRM driver for the Solomon OLED SSD1305, SSD1306, SSD1307 and SSD1309 displays. It is a port of the ssd1307fb fbdev driver. Using the DRM fb emulation, all the tests from Geert Uytterhoeven's fbtest (https://git.kernel.org/pub/scm/linux/kernel/git/geert/fbtest.git) passes: ./fbtest -f /dev/fb1 Using drawops cfb32 (32 bpp packed pixels) Available visuals: Monochrome Grayscale 256 Truecolor 8:8:8:0 Using visops truecolor Running all tests test001: PASSED test002: PASSED test003: PASSED test004: PASSED test005: PASSED test006: PASSED test008: PASSED test009: PASSED test010: PASSED Benchmarking... 10x10 squares: 412.99 Mpixels/s Benchmarking... 20x20 squares: 857.46 Mpixels/s Benchmarking... 50x50 squares: 1593.51 Mpixels/s test012: PASSED Benchmarking... R5 circles: 237.07 Mpixels/s Benchmarking... R10 circles: 501.24 Mpixels/s Benchmarking... R25 circles: 947.86 Mpixels/s test013: PASSED Patch #1 adds an I2C connector type since currently there isn't one and I2C drivers use DRM_MODE_CONNECTOR_Unknown or DRM_MODE_CONNECTOR_VIRTUAL. Patch #2 adds a drm_fb_gray8_to_mono_reversed() DRM format helper since most DRM/KMS user-space don't support bpp 1 displays, so drivers expose a common format that's converted to greyscale and then to monochrome. Patch #3 adds the driver. The name ssd1307 was used instead of ssd130x (which would be more accurate) to avoid confusion for users who want to migrate from the existing ssd1307fb fbdev driver. Patch #4 just adds a MAINTAINERS entry for this new DRM driver. Best regards, Javier Javier Martinez Canillas (4): drm: Add I2C connector type drm/format-helper: Add drm_fb_gray8_to_mono_reversed() drm/tiny: Add driver for Solomon SSD1307 OLED displays MAINTAINERS: Add entry for Solomon SSD1307 OLED displays DRM driver MAINTAINERS | 7 + drivers/gpu/drm/drm_connector.c | 1 + drivers/gpu/drm/drm_format_helper.c | 35 + drivers/gpu/drm/tiny/Kconfig | 12 + drivers/gpu/drm/tiny/Makefile | 1 + drivers/gpu/drm/tiny/ssd1307.c | 976 ++++++++++++++++++++++++++++ include/drm/drm_format_helper.h | 2 + include/uapi/drm/drm_mode.h | 1 + 8 files changed, 1035 insertions(+) create mode 100644 drivers/gpu/drm/tiny/ssd1307.c -- 2.34.1
