Added wait loop

1 files changed, 13 insertions, 6 deletions

diff --git a/linux/drivers/media/dvb/frontends/stv0297.c b/linux/drivers/media/dvb/frontends/stv0297.c
index d6cda95b4..6a007a1ae 100644
--- a/linux/drivers/media/dvb/frontends/stv0297.c
+++ b/linux/drivers/media/dvb/frontends/stv0297.c
@@ -165,7 +165,7 @@ static int stv0297_readreg (struct stv0297_state* state, u8 reg)
         struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = b0, .len = 1 },
                                   { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b1, .len = 1 } };
 
-	// this device cannot seem to handle having two transfers back to back */
+	// this device needs a STOP between the register and data
         if ((ret = i2c_transfer (state->i2c, &msg[0], 1)) != 1) {
 		dprintk("%s: readreg error (reg == 0x%02x, ret == %i)\n",
 			__FUNCTION__, reg, ret);
@@ -198,12 +198,19 @@ static int stv0297_readregs (struct stv0297_state* state, u8 reg1, u8 *b, u8 len
         struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = &reg1, .len = 1 },
                                   { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b, .len = len } };
 
-        ret = i2c_transfer (state->i2c, msg, 2);
-
-        if (ret != 2)
-                dprintk("%s: readreg error (ret == %i)\n", __FUNCTION__, ret);
+	// this device needs a STOP between the register and data
+        if ((ret = i2c_transfer (state->i2c, &msg[0], 1)) != 1) {
+		dprintk("%s: readreg error (reg == 0x%02x, ret == %i)\n",
+			__FUNCTION__, reg, ret);
+		return -1;
+	}
+        if ((ret = i2c_transfer (state->i2c, &msg[1], 1)) != 1) {
+		dprintk("%s: readreg error (reg == 0x%02x, ret == %i)\n",
+			__FUNCTION__, reg, ret);
+		return -1;
+	}
 
-        return ret == 2 ? 0 : ret;
+        return 0;
 }
 
 static int stv0297_set_symbolrate (struct stv0297_state* state, u32 srate)