[media] af9035: add log writing if unsupported Xtal freq is given
Supports currently only 12 MHz Xtals. It is better to print log
and not to attach frontend in that case.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/dvb/frontends/af9033.c b/drivers/media/dvb/frontends/af9033.c
index 40ef4b1..2772554 100644
--- a/drivers/media/dvb/frontends/af9033.c
+++ b/drivers/media/dvb/frontends/af9033.c
@@ -667,6 +667,13 @@
state->i2c = i2c;
memcpy(&state->cfg, config, sizeof(struct af9033_config));
+ if (state->cfg.clock != 12000000) {
+ printk(KERN_INFO "af9033: unsupported clock=%d, only " \
+ "12000000 Hz is supported currently\n",
+ state->cfg.clock);
+ goto err;
+ }
+
/* firmware version */
ret = af9033_rd_regs(state, 0x0083e9, &buf[0], 4);
if (ret < 0)