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Subject[v4 4/7] drm/mediatek: add frame size control
Date
Our new DSI chip has frame size control.
So add the driver data to control for different chips.

Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
---
drivers/gpu/drm/mediatek/mtk_dsi.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c
index eea47294079e..18a192656a89 100644
--- a/drivers/gpu/drm/mediatek/mtk_dsi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
@@ -78,6 +78,7 @@
#define DSI_VBP_NL 0x24
#define DSI_VFP_NL 0x28
#define DSI_VACT_NL 0x2C
+#define DSI_SIZE_CON 0x38
#define DSI_HSA_WC 0x50
#define DSI_HBP_WC 0x54
#define DSI_HFP_WC 0x58
@@ -162,6 +163,7 @@ struct phy;
struct mtk_dsi_driver_data {
const u32 reg_cmdq_off;
bool has_shadow_ctl;
+ bool has_size_ctl;
};

struct mtk_dsi {
@@ -430,6 +432,9 @@ static void mtk_dsi_config_vdo_timing(struct mtk_dsi *dsi)
writel(vm->vfront_porch, dsi->regs + DSI_VFP_NL);
writel(vm->vactive, dsi->regs + DSI_VACT_NL);

+ if (dsi->driver_data->has_size_ctl)
+ writel(vm->vactive << 16 | vm->hactive, dsi->regs + DSI_SIZE_CON);
+
horizontal_sync_active_byte = (vm->hsync_len * dsi_tmp_buf_bpp - 10);

if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_SYNC_PULSE)
--
2.21.0
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