From: Yongqiang Niu Date: Fri, 29 Jan 2021 09:22:06 +0000 (+0800) Subject: drm/mediatek: Add has_dither private data for gamma X-Git-Tag: v5.15~1734^2~6^2~6 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=4a15d1ac37eaa1ecce14c76d10e5f66da600b54f;p=mirror_ubuntu-kernels.git drm/mediatek: Add has_dither private data for gamma Not all SoC has dither function in gamma module. Add private data to control this function setting. Signed-off-by: Yongqiang Niu Signed-off-by: Hsin-Yi Wang Reviewed-by: CK Hu Signed-off-by: Chun-Kuang Hu --- diff --git a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c index 6736dacc2c41..80e3918f0d0d 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c @@ -26,7 +26,7 @@ #define LUT_10BIT_MASK 0x03ff struct mtk_disp_gamma_data { - u32 reserved; + bool has_dither; }; /** @@ -92,8 +92,9 @@ 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, - GAMMA_DITHERING, cmdq_pkt); + if (gamma->data && gamma->data->has_dither) + mtk_dither_set_common(gamma->regs, &gamma->cmdq_reg, bpc, + DISP_GAMMA_CFG, GAMMA_DITHERING, cmdq_pkt); } void mtk_gamma_start(struct device *dev) @@ -173,8 +174,13 @@ 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);