redonkable/alistair23-linux
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[media] ds3000: loading firmware in bigger chunks

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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>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Igor M. Liplianin 2011-02-01 19:40:25 -03:00 committed by Mauro Carvalho Chehab
parent 2a66bf370c
commit caa687c805
1 changed files with 4 additions and 4 deletions
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8
drivers/media/dvb/frontends/ds3000.c
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@ -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);