From 53055aae2048214cbec1f5f7f8846f9dff12b2bc Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Thu, 25 Feb 2010 11:38:13 +0200 Subject: OMAP: DSS2: DSI: add dsi_vc_dcs_read_2() helper Add dsi_vc_dcs_read_2() helper function to read two bytes from the DSI peripheral. Signed-off-by: Tomi Valkeinen --- drivers/video/omap2/dss/dsi.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'drivers/video/omap2') diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c index 73bdb04e681..a9820206ca1 100644 --- a/drivers/video/omap2/dss/dsi.c +++ b/drivers/video/omap2/dss/dsi.c @@ -2212,6 +2212,22 @@ int dsi_vc_dcs_read_1(int channel, u8 dcs_cmd, u8 *data) } EXPORT_SYMBOL(dsi_vc_dcs_read_1); +int dsi_vc_dcs_read_2(int channel, u8 dcs_cmd, u16 *data) +{ + int r; + + r = dsi_vc_dcs_read(channel, dcs_cmd, (u8 *)data, 2); + + if (r < 0) + return r; + + if (r != 2) + return -EIO; + + return 0; +} +EXPORT_SYMBOL(dsi_vc_dcs_read_2); + int dsi_vc_set_max_rx_packet_size(int channel, u16 len) { int r; -- cgit v1.2.3-18-g5258