Hi, Hsin-Yi: Hsin-Yi Wang <hsinyi@xxxxxxxxxxxx> 於 2021年2月2日 週二 下午4:14寫道： > > From: Yongqiang Niu <yongqiang.niu@xxxxxxxxxxxx> > > Add matrix_bits and coeffs_precision to ccorr private data: > - matrix bits of mt8183 is 10 > - matrix bits of mt8192 is 11 Applied to mediatek-drm-next [1], thanks. [1] https://git.kernel.org/pub/scm/linux/kernel/git/chunkuang.hu/linux.git/log/?h=mediatek-drm-next Regards, Chun-Kuang. > > Signed-off-by: Yongqiang Niu <yongqiang.niu@xxxxxxxxxxxx> > Signed-off-by: Hsin-Yi Wang <hsinyi@xxxxxxxxxxxx> > --- > drivers/gpu/drm/mediatek/mtk_disp_ccorr.c | 27 ++++++++++++++--------- > 1 file changed, 17 insertions(+), 10 deletions(-) > > diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ccorr.c b/drivers/gpu/drm/mediatek/mtk_disp_ccorr.c > index 6c86673a835c3..141cb36b9c07b 100644 > --- a/drivers/gpu/drm/mediatek/mtk_disp_ccorr.c > +++ b/drivers/gpu/drm/mediatek/mtk_disp_ccorr.c > @@ -30,7 +30,7 @@ > #define DISP_CCORR_COEF_4 0x0090 > > struct mtk_disp_ccorr_data { > - u32 reserved; > + u32 matrix_bits; > }; > > /** > @@ -85,21 +85,22 @@ void mtk_ccorr_stop(struct device *dev) > writel_relaxed(0x0, ccorr->regs + DISP_CCORR_EN); > } > > -/* Converts a DRM S31.32 value to the HW S1.10 format. */ > -static u16 mtk_ctm_s31_32_to_s1_10(u64 in) > +/* Converts a DRM S31.32 value to the HW S1.n format. */ > +static u16 mtk_ctm_s31_32_to_s1_n(u64 in, u32 n) > { > u16 r; > > /* Sign bit. */ > - r = in & BIT_ULL(63) ? BIT(11) : 0; > + r = in & BIT_ULL(63) ? BIT(n + 1) : 0; > > if ((in & GENMASK_ULL(62, 33)) > 0) { > - /* identity value 0x100000000 -> 0x400, */ > + /* identity value 0x100000000 -> 0x400(mt8183), */ > + /* identity value 0x100000000 -> 0x800(mt8192), */ > /* if bigger this, set it to max 0x7ff. */ > - r |= GENMASK(10, 0); > + r |= GENMASK(n, 0); > } else { > - /* take the 11 most important bits. */ > - r |= (in >> 22) & GENMASK(10, 0); > + /* take the n+1 most important bits. */ > + r |= (in >> (32 - n)) & GENMASK(n, 0); > } > > return r; > @@ -114,6 +115,7 @@ void mtk_ccorr_ctm_set(struct device *dev, struct drm_crtc_state *state) > uint16_t coeffs[9] = { 0 }; > int i; > struct cmdq_pkt *cmdq_pkt = NULL; > + u32 matrix_bits = ccorr->data->matrix_bits; > > if (!blob) > return; > @@ -122,7 +124,7 @@ void mtk_ccorr_ctm_set(struct device *dev, struct drm_crtc_state *state) > input = ctm->matrix; > > for (i = 0; i < ARRAY_SIZE(coeffs); i++) > - coeffs[i] = mtk_ctm_s31_32_to_s1_10(input[i]); > + coeffs[i] = mtk_ctm_s31_32_to_s1_n(input[i], matrix_bits); > > mtk_ddp_write(cmdq_pkt, coeffs[0] << 16 | coeffs[1], > &ccorr->cmdq_reg, ccorr->regs, DISP_CCORR_COEF_0); > @@ -199,8 +201,13 @@ static int mtk_disp_ccorr_remove(struct platform_device *pdev) > return 0; > } > > +static const struct mtk_disp_ccorr_data mt8183_ccorr_driver_data = { > + .matrix_bits = 10, > +}; > + > static const struct of_device_id mtk_disp_ccorr_driver_dt_match[] = { > - { .compatible = "mediatek,mt8183-disp-ccorr"}, > + { .compatible = "mediatek,mt8183-disp-ccorr", > + .data = &mt8183_ccorr_driver_data}, > {}, > }; > MODULE_DEVICE_TABLE(of, mtk_disp_ccorr_driver_dt_match); > -- > 2.30.0.365.g02bc693789-goog > > > _______________________________________________ > Linux-mediatek mailing list > Linux-mediatek@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/linux-mediatek _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
