[media] mxl5007t: fix reg read

Register to read should be written to register 0xfb and then
perform I2C read to get reg value.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/common/tuners/mxl5007t.c b/drivers/media/common/tuners/mxl5007t.c
index 7eb1bf7..5d02221 100644 (file)
--- a/drivers/media/common/tuners/mxl5007t.c
+++ b/drivers/media/common/tuners/mxl5007t.c
@@ -488,9 +488,10 @@ static int mxl5007t_write_regs(struct mxl5007t_state *state,
 
 static int mxl5007t_read_reg(struct mxl5007t_state *state, u8 reg, u8 *val)
 {
+       u8 buf[2] = { 0xfb, reg };
        struct i2c_msg msg[] = {
                { .addr = state->i2c_props.addr, .flags = 0,
-                 .buf = &reg, .len = 1 },
+                 .buf = buf, .len = 2 },
                { .addr = state->i2c_props.addr, .flags = I2C_M_RD,
                  .buf = val, .len = 1 },
        };