diff mbox

[3/9,v2] ds3000: loading firmware in bigger chunks

Message ID 201102020040.25705.liplianin@me.by (mailing list archive)
State Superseded, archived
Headers

Commit Message

Igor M. Liplianin Feb. 1, 2011, 10:40 p.m. UTC 
  Decrease firmware loading time. Before it is ~4000 i2c calls,
now it is ~256 i2c calls to load ds3000 firmware.

Signed-off-by: Igor M. Liplianin <liplianin@me.by>
---
 drivers/media/dvb/frontends/ds3000.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)
diff mbox

Patch

diff --git a/drivers/media/dvb/frontends/ds3000.c b/drivers/media/dvb/frontends/ds3000.c
index b20005c..02ba759 100644
--- a/drivers/media/dvb/frontends/ds3000.c
+++ b/drivers/media/dvb/frontends/ds3000.c
@@ -305,7 +305,7 @@  static int ds3000_writeFW(struct ds3000_state *state, int reg,
 	struct i2c_msg msg;
 	u8 *buf;
 
-	buf = kmalloc(3, GFP_KERNEL);
+	buf = kmalloc(33, GFP_KERNEL);
 	if (buf == NULL) {
 		printk(KERN_ERR "Unable to kmalloc\n");
 		ret = -ENOMEM;
@@ -317,10 +317,10 @@  static int ds3000_writeFW(struct ds3000_state *state, int reg,
 	msg.addr = state->config->demod_address;
 	msg.flags = 0;
 	msg.buf = buf;
-	msg.len = 3;
+	msg.len = 33;
 
-	for (i = 0; i < len; i += 2) {
-		memcpy(buf + 1, data + i, 2);
+	for (i = 0; i < len; i += 32) {
+		memcpy(buf + 1, data + i, 32);
 
 		dprintk("%s: write reg 0x%02x, len = %d\n", __func__, reg, len);