Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 52c66e4f authored by John Keeping's avatar John Keeping Committed by Sean Paul
Browse files

drm/rockchip: dw-mipi-dsi: respect message flags 



Instead of always sending commands in LP mode, respect the
MIPI_DSI_MSG_USE_LPM flag to decide how to send each message.  Also
request acks if MIPI_DSI_MSG_REQ_ACK is set.

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/20170224125506.21533-9-john@metanate.com
parent 028316fb

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

+15 −1
Original line number Diff line number Diff line
@@ -542,6 +542,19 @@ static int dw_mipi_dsi_host_detach(struct mipi_dsi_host *host, 
	return 0;

}



static void dw_mipi_message_config(struct dw_mipi_dsi *dsi,

				   const struct mipi_dsi_msg *msg)

{

	u32 val = 0;



	if (msg->flags & MIPI_DSI_MSG_REQ_ACK)

		val |= EN_ACK_RQST;

	if (msg->flags & MIPI_DSI_MSG_USE_LPM)

		val |= CMD_MODE_ALL_LP;



	dsi_write(dsi, DSI_CMD_MODE_CFG, val);

}



static int dw_mipi_dsi_gen_pkt_hdr_write(struct dw_mipi_dsi *dsi, u32 hdr_val)

{

	int ret;
@@ -636,6 +649,8 @@ static ssize_t dw_mipi_dsi_host_transfer(struct mipi_dsi_host *host, 
	struct dw_mipi_dsi *dsi = host_to_dsi(host);

	int ret;



	dw_mipi_message_config(dsi, msg);



	switch (msg->type) {

	case MIPI_DSI_DCS_SHORT_WRITE:

	case MIPI_DSI_DCS_SHORT_WRITE_PARAM:
@@ -747,7 +762,6 @@ static void dw_mipi_dsi_command_mode_config(struct dw_mipi_dsi *dsi) 
{

	dsi_write(dsi, DSI_TO_CNT_CFG, HSTX_TO_CNT(1000) | LPRX_TO_CNT(1000));

	dsi_write(dsi, DSI_BTA_TO_CNT, 0xd00);

	dsi_write(dsi, DSI_CMD_MODE_CFG, CMD_MODE_ALL_LP);

	dsi_write(dsi, DSI_MODE_CFG, ENABLE_CMD_MODE);

}