[media] stv090x: added function to control GPIOs from the outside
This patch STV090X adds and exports a function to control the GPIOs of
the stv090x-devices.
Cc: Manu Abraham <abraham.manu@gmail.com>
Signed-off-by: Martin Wilks <m.wilks@technisat.com>
Signed-off-by: Patrick Boettcher <pboettcher@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/dvb/frontends/stv090x.c b/drivers/media/dvb/frontends/stv090x.c
index 4e0fc2c..63cb4f8 100644
--- a/drivers/media/dvb/frontends/stv090x.c
+++ b/drivers/media/dvb/frontends/stv090x.c
@@ -4516,6 +4516,20 @@
return -1;
}
+int stv090x_set_gpio(struct dvb_frontend *fe, u8 gpio, u8 dir, u8 value,
+ u8 xor_value)
+{
+ struct stv090x_state *state = fe->demodulator_priv;
+ u8 reg = 0;
+
+ STV090x_SETFIELD(reg, GPIOx_OPD_FIELD, dir);
+ STV090x_SETFIELD(reg, GPIOx_CONFIG_FIELD, value);
+ STV090x_SETFIELD(reg, GPIOx_XOR_FIELD, xor_value);
+
+ return stv090x_write_reg(state, STV090x_GPIOxCFG(gpio), reg);
+}
+EXPORT_SYMBOL(stv090x_set_gpio);
+
static struct dvb_frontend_ops stv090x_ops = {
.info = {