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

Commit 53055aae authored by Tomi Valkeinen's avatar Tomi Valkeinen
Browse files

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: default avatarTomi Valkeinen <tomi.valkeinen@nokia.com>
parent ddbfeb39

arch/arm/plat-omap/include/plat/display.h

+1 −0
Original line number Diff line number Diff line
@@ -238,6 +238,7 @@ int dsi_vc_dcs_write_1(int channel, u8 dcs_cmd, u8 param); 
int dsi_vc_dcs_write_nosync(int channel, u8 *data, int len);

int dsi_vc_dcs_read(int channel, u8 dcs_cmd, u8 *buf, int buflen);

int dsi_vc_dcs_read_1(int channel, u8 dcs_cmd, u8 *data);

int dsi_vc_dcs_read_2(int channel, u8 dcs_cmd, u16 *data);

int dsi_vc_set_max_rx_packet_size(int channel, u16 len);

int dsi_vc_send_null(int channel);

int dsi_vc_send_bta_sync(int channel);

drivers/video/omap2/dss/dsi.c

+16 −0
Original line number Diff line number Diff line
@@ -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;