From f1fe1b75d64046b693075045fe9fc5cafed9c981 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Sat, 9 Jul 2011 21:59:33 -0300 Subject: [media] drxk: Allow to disable I2C Bridge control switch On em28xx, tda18271C2 is accessible when the i2c port is not touched. Touching on it breaks the driver. Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/frontends/drxk.h | 1 + drivers/media/dvb/frontends/drxk_hard.c | 3 +++ drivers/media/dvb/frontends/drxk_hard.h | 1 + drivers/media/video/em28xx/em28xx-dvb.c | 1 + 4 files changed, 6 insertions(+) diff --git a/drivers/media/dvb/frontends/drxk.h b/drivers/media/dvb/frontends/drxk.h index dd54512df2a5..9c99f31369ce 100644 --- a/drivers/media/dvb/frontends/drxk.h +++ b/drivers/media/dvb/frontends/drxk.h @@ -7,6 +7,7 @@ struct drxk_config { u8 adr; u32 single_master : 1; + u32 no_i2c_bridge : 1; const char *microcode_name; }; diff --git a/drivers/media/dvb/frontends/drxk_hard.c b/drivers/media/dvb/frontends/drxk_hard.c index adb454a8eb7f..523352670e73 100644 --- a/drivers/media/dvb/frontends/drxk_hard.c +++ b/drivers/media/dvb/frontends/drxk_hard.c @@ -2784,6 +2784,8 @@ static int ConfigureI2CBridge(struct drxk_state *state, bool bEnableBridge) if (state->m_DrxkState == DRXK_POWERED_DOWN) return -1; + if (state->no_i2c_bridge) + return 0; do { status = write16(state, SIO_HI_RA_RAM_PAR_1__A, SIO_HI_RA_RAM_PAR_1_PAR1_SEC_KEY); if (status < 0) @@ -6360,6 +6362,7 @@ struct dvb_frontend *drxk_attach(const struct drxk_config *config, state->demod_address = adr; state->single_master = config->single_master; state->microcode_name = config->microcode_name; + state->no_i2c_bridge = config->no_i2c_bridge; mutex_init(&state->mutex); mutex_init(&state->ctlock); diff --git a/drivers/media/dvb/frontends/drxk_hard.h b/drivers/media/dvb/frontends/drxk_hard.h index 8cdadce2646e..b042755188c4 100644 --- a/drivers/media/dvb/frontends/drxk_hard.h +++ b/drivers/media/dvb/frontends/drxk_hard.h @@ -330,6 +330,7 @@ struct drxk_state { /* Configurable parameters at the driver */ u32 single_master : 1; /* Use single master i2c mode */ + u32 no_i2c_bridge : 1; /* Tuner is not on port 1, don't use I2C bridge */ const char *microcode_name; }; diff --git a/drivers/media/video/em28xx/em28xx-dvb.c b/drivers/media/video/em28xx/em28xx-dvb.c index 93f0af505b00..9b2be03c82e8 100644 --- a/drivers/media/video/em28xx/em28xx-dvb.c +++ b/drivers/media/video/em28xx/em28xx-dvb.c @@ -304,6 +304,7 @@ static struct drxd_config em28xx_drxd = { struct drxk_config terratec_h5_drxk = { .adr = 0x29, .single_master = 1, + .no_i2c_bridge = 1, .microcode_name = "terratec_h5.fw", }; -- cgit v1.2.3