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drm/rockchip: vop: add support atomic api for gamma lut

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Change-Id: Idc1d635693e14e1fe35d8f03e3707c58dd21c468
Signed-off-by: Sandy Huang <hjc@rock-chips.com>
This commit is contained in:
Sandy Huang
2021-01-28 15:06:54 +08:00
committed by Tao Huang
parent 34622060bf
commit 650f40f040
1 changed files with 45 additions and 21 deletions
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66
drivers/gpu/drm/rockchip/rockchip_drm_vop.c
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@@ -260,6 +260,8 @@ struct vop {
u32 *lut;
u32 lut_len;
bool lut_active;
/* gamma look up table */
struct drm_color_lut *gamma_lut;
bool dual_channel_swap;
/* one time only one process allowed to config the register */
spinlock_t reg_lock;
@@ -1412,6 +1414,40 @@ static void rockchip_vop_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red,
*blue = b * 0xffff / (lut_len - 1);
}
static int vop_crtc_legacy_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
u16 *blue, uint32_t size,
struct drm_modeset_acquire_ctx *ctx)
{
struct vop *vop = to_vop(crtc);
int len = min(size, vop->lut_len);
int i;
if (!vop->lut)
return -EINVAL;
for (i = 0; i < len; i++)
rockchip_vop_crtc_fb_gamma_set(crtc, red[i], green[i], blue[i], i);
vop_crtc_load_lut(crtc);
return 0;
}
static int vop_crtc_atomic_gamma_set(struct drm_crtc *crtc,
struct drm_crtc_state *old_state)
{
struct vop *vop = to_vop(crtc);
struct drm_color_lut *lut = vop->gamma_lut;
unsigned int i;
for (i = 0; i < vop->lut_len; i++)
rockchip_vop_crtc_fb_gamma_set(crtc, lut[i].red, lut[i].green,
lut[i].blue, i);
vop_crtc_load_lut(crtc);
return 0;
}
static void vop_power_enable(struct drm_crtc *crtc)
{
struct vop *vop = to_vop(crtc);
@@ -3604,6 +3640,13 @@ static void vop_crtc_atomic_flush(struct drm_crtc *crtc,
}
vop_update_hdr(crtc, old_crtc_state);
if (old_crtc_state->color_mgmt_changed || old_crtc_state->active_changed) {
if (crtc->state->gamma_lut || vop->gamma_lut) {
if (old_crtc_state->gamma_lut)
vop->gamma_lut = old_crtc_state->gamma_lut->data;
vop_crtc_atomic_gamma_set(crtc, old_crtc_state);
}
}
spin_lock_irqsave(&vop->irq_lock, flags);
vop->pre_overlay = s->hdr.pre_overlay;
@@ -3866,28 +3909,8 @@ static int vop_crtc_atomic_set_property(struct drm_crtc *crtc,
return -EINVAL;
}
static int vop_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
u16 *blue, uint32_t size,
struct drm_modeset_acquire_ctx *ctx)
{
struct vop *vop = to_vop(crtc);
int len = min(size, vop->lut_len);
int i;
if (!vop->lut)
return -EINVAL;
for (i = 0; i < len; i++)
rockchip_vop_crtc_fb_gamma_set(crtc, red[i], green[i],
blue[i], i);
vop_crtc_load_lut(crtc);
return 0;
}
static const struct drm_crtc_funcs vop_crtc_funcs = {
.gamma_set = vop_crtc_gamma_set,
.gamma_set = vop_crtc_legacy_gamma_set,
.set_config = drm_atomic_helper_set_config,
.page_flip = drm_atomic_helper_page_flip,
.destroy = vop_crtc_destroy,
@@ -4255,6 +4278,7 @@ static int vop_create_crtc(struct vop *vop)
}
drm_mode_crtc_set_gamma_size(crtc, lut_len);
drm_crtc_enable_color_mgmt(crtc, 0, false, lut_len);
r_base = crtc->gamma_store;
g_base = r_base + crtc->gamma_size;
b_base = g_base + crtc->gamma_size;