Update CMM settings at in the atomic commit tail helper method.
The CMM is updated with new gamma values provided to the driver in the GAMMA_LUT blob property.
Signed-off-by: Jacopo Mondi jacopo+renesas@jmondi.org --- drivers/gpu/drm/rcar-du/rcar_du_kms.c | 35 +++++++++++++++++++++++++++ 1 file changed, 35 insertions(+)
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c b/drivers/gpu/drm/rcar-du/rcar_du_kms.c index b79cda2f5531..f9aece78ca5f 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c @@ -21,6 +21,7 @@ #include <linux/of_platform.h> #include <linux/wait.h>
+#include "rcar_cmm.h" #include "rcar_du_crtc.h" #include "rcar_du_drv.h" #include "rcar_du_encoder.h" @@ -287,6 +288,37 @@ rcar_du_fb_create(struct drm_device *dev, struct drm_file *file_priv, * Atomic Check and Update */
+static void rcar_du_atomic_commit_update_cmm(struct drm_crtc *crtc, + struct drm_crtc_state *old_state) +{ + struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc); + struct rcar_cmm_config cmm_config = {}; + + if (!rcrtc->cmm || !crtc->state->color_mgmt_changed) + return; + + if (!crtc->state->gamma_lut) { + cmm_config.lut.enable = false; + rcar_cmm_setup(rcrtc->cmm, &cmm_config); + + return; + } + + cmm_config.lut.enable = true; + cmm_config.lut.table = (struct drm_color_lut *) + crtc->state->gamma_lut->data; + + /* Set LUT table size to 0 if entries should not be updated. */ + if (!old_state->gamma_lut || + old_state->gamma_lut->base.id != crtc->state->gamma_lut->base.id) + cmm_config.lut.size = crtc->state->gamma_lut->length + / sizeof(cmm_config.lut.table[0]); + else + cmm_config.lut.size = 0; + + rcar_cmm_setup(rcrtc->cmm, &cmm_config); +} + static int rcar_du_atomic_check(struct drm_device *dev, struct drm_atomic_state *state) { @@ -329,6 +361,9 @@ static void rcar_du_atomic_commit_tail(struct drm_atomic_state *old_state) rcdu->dpad1_source = rcrtc->index; }
+ for_each_old_crtc_in_state(old_state, crtc, crtc_state, i) + rcar_du_atomic_commit_update_cmm(crtc, crtc_state); + /* Apply the atomic update. */ drm_atomic_helper_commit_modeset_disables(dev, old_state); drm_atomic_helper_commit_planes(dev, old_state,