Commit 5403bbae authored by Michel Ludwig's avatar Michel Ludwig Committed by Mauro Carvalho Chehab
Browse files

V4L/DVB (6612): Allow RESET_CLK callback and avoids unneeded loading 



TM5600/TM6000 needs clock reset during firmware load. This patch adds the
capability of caling a callback method for this.

Also, avoids uneeded firmware loads.

Signed-off-by: default avatarMichel Ludwig <michel.ludwig@gmail.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@infradead.org>
parent a37b4c9b

drivers/media/video/tuner-xc2028.c

+20 −0
Original line number Original line Diff line number Diff line
@@ -461,6 +461,23 @@ static int load_firmware(struct dvb_frontend *fe, unsigned int type, 
			}

			}

			continue;

			continue;

		}

		}

		if (size >= 0xff00) {

			switch (size) {

			case 0xff00:

				rc = priv->tuner_callback(priv->video_dev,

							XC2028_RESET_CLK, 0);

				if (rc < 0) {

					tuner_err("Error at RESET code %d\n",

						  (*p) & 0x7f);

					return -EINVAL;

				}

			default:

				tuner_info("Invalid RESET code %d\n",

					   size & 0x7f);

				return -EINVAL;



			}

		}





		/* Checks for a sleep command */

		/* Checks for a sleep command */

		if (size & 0x8000) {

		if (size & 0x8000) {
@@ -627,6 +644,9 @@ static int check_firmware(struct dvb_frontend *fe, enum tuner_mode new_mode, 
		priv->bandwidth = bandwidth;

		priv->bandwidth = bandwidth;

	}

	}





	if (!change_digital_bandwidth && priv->mode == T_DIGITAL_TV)

		return 0;



	/* Load INIT1, if needed */

	/* Load INIT1, if needed */

	tuner_dbg("Load init1 firmware, if exists\n");

	tuner_dbg("Load init1 firmware, if exists\n");

	type0 = BASE | INIT1;

	type0 = BASE | INIT1;