[media] cx24116: add config option to split firmware download

It is very rare I2C adapter hardware which can provide 32kB I2C write
as one write. Add .i2c_wr_max option to set desired max packet size.
Split transaction to smaller pieces according to that option.

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

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/media/dvb/frontends/cx24116.h b/drivers/media/dvb/frontends/cx24116.h
index b1b76b47a14c..7d90ab949c03 100644
--- a/drivers/media/dvb/frontends/cx24116.h
+++ b/drivers/media/dvb/frontends/cx24116.h
@@ -35,6 +35,9 @@ struct cx24116_config {
 
         /* Need to set MPEG parameters */
         u8 mpg_clk_pos_pol:0x02;
+
+        /* max bytes I2C provider can write at once */
+        u16 i2c_wr_max;
 };
 
 #if defined(CONFIG_DVB_CX24116) || \