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drm/mediatek: add gmc_bits for ovl private data

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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.

Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
Signed-off-by: CK Hu <ck.hu@mediatek.com>
This commit is contained in:
Yongqiang Niu 2019-08-29 22:50:40 +08:00 committed by CK Hu
parent dd8feb2262
commit d5abb5f214
1 changed files with 21 additions and 2 deletions
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23
drivers/gpu/drm/mediatek/mtk_disp_ovl.c
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@ -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,
};