Attempt to add gamma correction support for imx-ldb.
The gamma correction values for the i.mx6 Display Processor registers IPU_DP_GAMMA_C_SYNC/IPU_DP_GAMMA_S_SYNC [1,2] are given as device tree values fsl,gamma-constk and fsl,gamma-slopek (see example values at imx6q-sabrelite.dts calculated as suggested in [3]).
[1] http://www.freescale.com/infocenter/index.jsp?topic=%2FIMX6DQRM%2F1008258.ht... [2] http://www.freescale.com/infocenter/index.jsp?topic=%2FIMX6DQRM%2F3176537.ht... [3] https://github.com/boundarydevices/imx-linux-test/blob/imx_jb4.2.2_1.0.0-ga/...
Peter Seiderer (1): imx-drm: gamma correction for imx-ldb
arch/arm/boot/dts/imx6q-sabrelite.dts | 3 +++ drivers/staging/imx-drm/imx-drm-core.c | 27 +++++++++++++++++++++++ drivers/staging/imx-drm/imx-drm.h | 4 ++++ drivers/staging/imx-drm/imx-ldb.c | 18 ++++++++++++++++ drivers/staging/imx-drm/ipu-v3/imx-ipu-v3.h | 2 ++ drivers/staging/imx-drm/ipu-v3/ipu-dp.c | 33 +++++++++++++++++++++++++++++ drivers/staging/imx-drm/ipuv3-crtc.c | 9 ++++++++ 7 files changed, 96 insertions(+)