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Commit f89982a9 authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab Committed by Linus Torvalds
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V4L/DVB (3514): SAA7113 doesn't have auto std chroma detection mode 



This patch makes chroma standard selection based at possible values,
according with datasheet.

Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@infradead.org>
parent f5762e44

drivers/media/video/saa7115.c

+29 −0
Original line number Diff line number Diff line
@@ -713,6 +713,35 @@ static void saa7115_set_v4lstd(struct i2c_client *client, v4l2_std_id std) 
		saa7115_writeregs(client, saa7115_cfg_50hz_video);

	}



	/* Register 0E - Bits D6-D4 on NO-AUTO mode

		(SAA7113 doesn't have auto mode)

	    50 Hz / 625 lines           60 Hz / 525 lines

	000 PAL BGDHI (4.43Mhz)         NTSC M (3.58MHz)

	001 NTSC 4.43 (50 Hz)           PAL 4.43 (60 Hz)

	010 Combination-PAL N (3.58MHz) NTSC 4.43 (60 Hz)

	011 NTSC N (3.58MHz)            PAL M (3.58MHz)

	100 reserved                    NTSC-Japan (3.58MHz)

	*/

	if (state->ident == V4L2_IDENT_SAA7113) {

		u8 reg =  saa7115_read(client, 0x0e) & 0x8f;



		if (std & V4L2_STD_PAL) {

			if (std == V4L2_STD_PAL_M) {

				reg|=0x30;

			} else if (std == V4L2_STD_PAL_N) {

				reg|=0x20;

			} else if (std == V4L2_STD_PAL_60) {

				reg|=0x10;

			}

		} else if (std & V4L2_STD_NTSC) {

			if (std == V4L2_STD_NTSC_M_JP) {

				reg|=0x40;

			}

		}

		saa7115_write(client, 0x0e, reg);

	}





	state->std = std;



	/* restart task B if needed */