Commit b63ac1e3 authored by Tomi Valkeinen's avatar Tomi Valkeinen
Browse files

OMAP: DSS2: DSI: handle error in synchronous write 



Check if the peripheral answered something, and if so, dump the data
and return an error.

Signed-off-by: default avatarTomi Valkeinen <tomi.valkeinen@nokia.com>
parent 0c244f77

drivers/video/omap2/dss/dsi.c

+7 −0
Original line number Diff line number Diff line
@@ -2089,6 +2089,13 @@ int dsi_vc_dcs_write(int channel, u8 *data, int len) 
	if (r)

		goto err;



	if (REG_GET(DSI_VC_CTRL(channel), 20, 20)) {	/* RX_FIFO_NOT_EMPTY */

		DSSERR("rx fifo not empty after write, dumping data:\n");

		dsi_vc_flush_receive_data(channel);

		r = -EIO;

		goto err;

	}



	return 0;

err:

	DSSERR("dsi_vc_dcs_write(ch %d, cmd 0x%02x, len %d) failed\n",

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