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Commit 03a5832c authored by John Keeping's avatar John Keeping Committed by Sean Paul
Browse files

drm/rockchip: dw-mipi-dsi: support non-burst modes 



Signed-off-by: default avatarJohn Keeping <john@metanate.com>
Reviewed-by: default avatarChris Zhong <zyw@rock-chips.com>
Reviewed-by: default avatarSean Paul <seanpaul@chromium.org>
Signed-off-by: default avatarSean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20170224125506.21533-23-john@metanate.com
parent 2f8f2d29

drivers/gpu/drm/rockchip/dw-mipi-dsi.c

+13 −8
Original line number Diff line number Diff line
@@ -82,7 +82,9 @@ 
#define FRAME_BTA_ACK			BIT(14)

#define ENABLE_LOW_POWER		(0x3f << 8)

#define ENABLE_LOW_POWER_MASK		(0x3f << 8)

#define VID_MODE_TYPE_BURST_SYNC_PULSES		0x2

#define VID_MODE_TYPE_NON_BURST_SYNC_PULSES	0x0

#define VID_MODE_TYPE_NON_BURST_SYNC_EVENTS	0x1

#define VID_MODE_TYPE_BURST			0x2

#define VID_MODE_TYPE_MASK			0x3



#define DSI_VID_PKT_SIZE		0x3c
@@ -286,6 +288,7 @@ struct dw_mipi_dsi { 
	u32 format;

	u16 input_div;

	u16 feedback_div;

	unsigned long mode_flags;



	const struct dw_mipi_dsi_plat_data *pdata;

};
@@ -558,15 +561,10 @@ static int dw_mipi_dsi_host_attach(struct mipi_dsi_host *host, 
		return -EINVAL;

	}



	if (!(device->mode_flags & MIPI_DSI_MODE_VIDEO_BURST) ||

	    !(device->mode_flags & MIPI_DSI_MODE_VIDEO_SYNC_PULSE)) {

		dev_err(dsi->dev, "device mode is unsupported\n");

		return -EINVAL;

	}



	dsi->lanes = device->lanes;

	dsi->channel = device->channel;

	dsi->format = device->format;

	dsi->mode_flags = device->mode_flags;

	dsi->panel = of_drm_find_panel(device->dev.of_node);

	if (dsi->panel)

		return drm_panel_attach(dsi->panel, &dsi->connector);
@@ -725,7 +723,14 @@ static void dw_mipi_dsi_video_mode_config(struct dw_mipi_dsi *dsi) 
{

	u32 val;



	val = VID_MODE_TYPE_BURST_SYNC_PULSES | ENABLE_LOW_POWER;

	val = ENABLE_LOW_POWER;



	if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_BURST)

		val |= VID_MODE_TYPE_BURST;

	else if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_SYNC_PULSE)

		val |= VID_MODE_TYPE_NON_BURST_SYNC_PULSES;

	else

		val |= VID_MODE_TYPE_NON_BURST_SYNC_EVENTS;



	dsi_write(dsi, DSI_VID_MODE_CFG, val);

}