drm/mediatek: add frame size control

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>
Signed-off-by: CK Hu <ck.hu@mediatek.com>

diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c
index 881c0af..ac1a240 100644 (file)
--- a/drivers/gpu/drm/mediatek/mtk_dsi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
@@ -72,6 +72,7 @@
 #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
@@ -156,6 +157,7 @@ struct phy;
 struct mtk_dsi_driver_data {
        const u32 reg_cmdq_off;
        bool has_shadow_ctl;
+       bool has_size_ctl;
 };
 
 struct mtk_dsi {
@@ -424,6 +426,10 @@ 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)