Hi, Yongqiang: On Thu, 2019-08-29 at 22:50 +0800, yongqiang.niu@xxxxxxxxxxxx wrote: > From: Yongqiang Niu <yongqiang.niu@xxxxxxxxxxxx> > > This patch add gmc_bits for ovl private data > GMC register was set RDMA ultra and pre-ultra threshold. > 10bit GMC register define is different with other SOC, gmc_thrshd_l not > used. > Applied to mediatek-drm-next-5.5 [1], thanks. [1] https://github.com/ckhu-mediatek/linux.git-tags/commits/mediatek-drm-next-5.5 Regards, CK > Signed-off-by: Yongqiang Niu <yongqiang.niu@xxxxxxxxxxxx> > Reviewed-by: CK Hu <ck.hu@xxxxxxxxxxxx> > --- > drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 23 +++++++++++++++++++++-- > 1 file changed, 21 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c > index c4f07c2..82eaefd 100644 > --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c > +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c > @@ -31,7 +31,9 @@ > #define DISP_REG_OVL_ADDR_MT8173 0x0f40 > #define DISP_REG_OVL_ADDR(ovl, n) ((ovl)->data->addr + 0x20 * (n)) > > -#define OVL_RDMA_MEM_GMC 0x40402020 > +#define GMC_THRESHOLD_BITS 16 > +#define GMC_THRESHOLD_HIGH ((1 << GMC_THRESHOLD_BITS) / 4) > +#define GMC_THRESHOLD_LOW ((1 << GMC_THRESHOLD_BITS) / 8) > > #define OVL_CON_BYTE_SWAP BIT(24) > #define OVL_CON_MTX_YUV_TO_RGB (6 << 16) > @@ -49,6 +51,7 @@ > > struct mtk_disp_ovl_data { > unsigned int addr; > + unsigned int gmc_bits; > bool fmt_rgb565_is_0; > }; > > @@ -132,9 +135,23 @@ static unsigned int mtk_ovl_layer_nr(struct mtk_ddp_comp *comp) > static void mtk_ovl_layer_on(struct mtk_ddp_comp *comp, unsigned int idx) > { > unsigned int reg; > + unsigned int gmc_thrshd_l; > + unsigned int gmc_thrshd_h; > + unsigned int gmc_value; > + struct mtk_disp_ovl *ovl = comp_to_ovl(comp); > > writel(0x1, comp->regs + DISP_REG_OVL_RDMA_CTRL(idx)); > - writel(OVL_RDMA_MEM_GMC, comp->regs + DISP_REG_OVL_RDMA_GMC(idx)); > + > + gmc_thrshd_l = GMC_THRESHOLD_LOW >> > + (GMC_THRESHOLD_BITS - ovl->data->gmc_bits); > + gmc_thrshd_h = GMC_THRESHOLD_HIGH >> > + (GMC_THRESHOLD_BITS - ovl->data->gmc_bits); > + if (ovl->data->gmc_bits == 10) > + gmc_value = gmc_thrshd_h | gmc_thrshd_h << 16; > + else > + gmc_value = gmc_thrshd_l | gmc_thrshd_l << 8 | > + gmc_thrshd_h << 16 | gmc_thrshd_h << 24; > + writel(gmc_value, comp->regs + DISP_REG_OVL_RDMA_GMC(idx)); > > reg = readl(comp->regs + DISP_REG_OVL_SRC_CON); > reg = reg | BIT(idx); > @@ -316,11 +333,13 @@ static int mtk_disp_ovl_remove(struct platform_device *pdev) > > static const struct mtk_disp_ovl_data mt2701_ovl_driver_data = { > .addr = DISP_REG_OVL_ADDR_MT2701, > + .gmc_bits = 8, > .fmt_rgb565_is_0 = false, > }; > > static const struct mtk_disp_ovl_data mt8173_ovl_driver_data = { > .addr = DISP_REG_OVL_ADDR_MT8173, > + .gmc_bits = 8, > .fmt_rgb565_is_0 = true, > }; > _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
