[PATCH v10 6/9] drm/mediatek: add has_dither private data for gamma
From: Hsin-Yi Wang <hidden>
Date: 2021-01-27 05:20:22
Also in:
dri-devel, linux-arm-kernel, linux-mediatek, lkml
Subsystem:
drm drivers, drm drivers for mediatek, the rest · Maintainers:
David Airlie, Simona Vetter, Chun-Kuang Hu, Philipp Zabel, Linus Torvalds
From: Yongqiang Niu <redacted> Not all SoC has dither function in gamma module. Add private data to control this function setting. Signed-off-by: Yongqiang Niu <redacted> Signed-off-by: Hsin-Yi Wang <redacted> --- drivers/gpu/drm/mediatek/mtk_disp_gamma.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c
index b5a499d7e472c..c98fe284265d0 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c@@ -25,7 +25,7 @@ #define LUT_10BIT_MASK 0x03ff struct mtk_disp_gamma_data { - u32 reserved; + bool has_dither; }; /**
@@ -91,7 +91,8 @@ void mtk_gamma_config(struct device *dev, unsigned int w, mtk_ddp_write(cmdq_pkt, h << 16 | w, &gamma->cmdq_reg, gamma->regs, DISP_GAMMA_SIZE); - mtk_dither_set_common(gamma->regs, &gamma->cmdq_reg, bpc, DISP_GAMMA_CFG, cmdq_pkt); + if (gamma->data && gamma->data->has_dither) + mtk_dither_set_common(gamma->regs, &gamma->cmdq_reg, bpc, DISP_GAMMA_CFG, cmdq_pkt); } void mtk_gamma_start(struct device *dev)
@@ -171,8 +172,13 @@ static int mtk_disp_gamma_remove(struct platform_device *pdev) return 0; } +static const struct mtk_disp_gamma_data mt8173_gamma_driver_data = { + .has_dither = true, +}; + static const struct of_device_id mtk_disp_gamma_driver_dt_match[] = { - { .compatible = "mediatek,mt8173-disp-gamma"}, + { .compatible = "mediatek,mt8173-disp-gamma", + .data = &mt8173_gamma_driver_data}, {}, }; MODULE_DEVICE_TABLE(of, mtk_disp_gamma_driver_dt_match);
--
2.30.0.280.ga3ce27912f-goog