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    Subject[PATCH v3, 18/27] drm/medaitek: add layer_nr for ovl private data
    Date
    From: Yongqiang Niu <yongqiang.niu@mediatek.com>

    This patch add layer_nr for ovl private data
    ovl_2l almost same with with ovl hardware, except the
    layer number for ovl_2l is 2 and ovl is 4.
    this patch is a preparation for ovl-2l and
    ovl share the same driver.

    Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
    ---
    drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 7 ++++++-
    1 file changed, 6 insertions(+), 1 deletion(-)

    diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
    index afb313c..a0ab760 100644
    --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
    +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
    @@ -60,6 +60,7 @@
    struct mtk_disp_ovl_data {
    unsigned int addr;
    unsigned int gmc_bits;
    + unsigned int layer_nr;
    bool fmt_rgb565_is_0;
    };

    @@ -137,7 +138,9 @@ static void mtk_ovl_config(struct mtk_ddp_comp *comp, unsigned int w,

    static unsigned int mtk_ovl_layer_nr(struct mtk_ddp_comp *comp)
    {
    - return 4;
    + struct mtk_disp_ovl *ovl = comp_to_ovl(comp);
    +
    + return ovl->data->layer_nr;
    }

    static void mtk_ovl_layer_on(struct mtk_ddp_comp *comp, unsigned int idx)
    @@ -342,12 +345,14 @@ 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,
    + .layer_nr = 4,
    .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,
    + .layer_nr = 4,
    .fmt_rgb565_is_0 = true,
    };

    --
    1.8.1.1.dirty
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