diff options
Diffstat (limited to 'drivers/gpu/drm/arm/display/komeda/d71/d71_component.c')
| -rw-r--r-- | drivers/gpu/drm/arm/display/komeda/d71/d71_component.c | 47 |
1 files changed, 42 insertions, 5 deletions
diff --git a/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c b/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c index 2e9789ac7be1..ad6a716a0d30 100644 --- a/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c +++ b/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c @@ -642,23 +642,58 @@ static void d71_scaler_update(struct komeda_component *c, malidp_write32(reg, BLK_IN_SIZE, HV_SIZE(st->hsize_in, st->vsize_in)); malidp_write32(reg, SC_OUT_SIZE, HV_SIZE(st->hsize_out, st->vsize_out)); + malidp_write32(reg, SC_H_CROP, HV_CROP(st->left_crop, st->right_crop)); + + /* for right part, HW only sample the valid pixel which means the pixels + * in left_crop will be jumpped, and the first sample pixel is: + * + * dst_a = st->total_hsize_out - st->hsize_out + st->left_crop + 0.5; + * + * Then the corresponding texel in src is: + * + * h_delta_phase = st->total_hsize_in / st->total_hsize_out; + * src_a = dst_A * h_delta_phase; + * + * and h_init_phase is src_a deduct the real source start src_S; + * + * src_S = st->total_hsize_in - st->hsize_in; + * h_init_phase = src_a - src_S; + * + * And HW precision for the initial/delta_phase is 16:16 fixed point, + * the following is the simplified formula + */ + if (st->right_part) { + u32 dst_a = st->total_hsize_out - st->hsize_out + st->left_crop; + + if (st->en_img_enhancement) + dst_a -= 1; + + init_ph = ((st->total_hsize_in * (2 * dst_a + 1) - + 2 * st->total_hsize_out * (st->total_hsize_in - + st->hsize_in)) << 15) / st->total_hsize_out; + } else { + init_ph = (st->total_hsize_in << 15) / st->total_hsize_out; + } - init_ph = (st->hsize_in << 15) / st->hsize_out; malidp_write32(reg, SC_H_INIT_PH, init_ph); - delta_ph = (st->hsize_in << 16) / st->hsize_out; + delta_ph = (st->total_hsize_in << 16) / st->total_hsize_out; malidp_write32(reg, SC_H_DELTA_PH, delta_ph); - init_ph = (st->vsize_in << 15) / st->vsize_out; + init_ph = (st->total_vsize_in << 15) / st->vsize_out; malidp_write32(reg, SC_V_INIT_PH, init_ph); - delta_ph = (st->vsize_in << 16) / st->vsize_out; + delta_ph = (st->total_vsize_in << 16) / st->vsize_out; malidp_write32(reg, SC_V_DELTA_PH, delta_ph); ctrl = 0; ctrl |= st->en_scaling ? SC_CTRL_SCL : 0; ctrl |= st->en_alpha ? SC_CTRL_AP : 0; ctrl |= st->en_img_enhancement ? SC_CTRL_IENH : 0; + /* If we use the hardware splitter we shouldn't set SC_CTRL_LS */ + if (st->en_split && + state->inputs[0].component->id != KOMEDA_COMPONENT_SPLITTER) + ctrl |= SC_CTRL_LS; malidp_write32(reg, BLK_CONTROL, ctrl); malidp_write32(reg, BLK_INPUT_ID0, to_d71_input_id(&state->inputs[0])); @@ -716,10 +751,12 @@ static int d71_scaler_init(struct d71_dev *d71, } scaler = to_scaler(c); - set_range(&scaler->hsize, 4, d71->max_line_size); + set_range(&scaler->hsize, 4, 2048); set_range(&scaler->vsize, 4, 4096); scaler->max_downscaling = 6; scaler->max_upscaling = 64; + scaler->scaling_split_overlap = 8; + scaler->enh_split_overlap = 1; malidp_write32(c->reg, BLK_CONTROL, 0); |