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Commit caa687c8 authored by Igor M. Liplianin's avatar Igor M. Liplianin Committed by Mauro Carvalho Chehab
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[media] ds3000: loading firmware in bigger chunks 



Decrease firmware loading time. Before it is ~4000 i2c calls,
now it is ~256 i2c calls to load ds3000 firmware.

Signed-off-by: default avatarIgor M. Liplianin <liplianin@me.by>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 2a66bf37

drivers/media/dvb/frontends/ds3000.c

+4 −4
Original line number Original line Diff line number Diff line
@@ -305,7 +305,7 @@ static int ds3000_writeFW(struct ds3000_state *state, int reg, 
	struct i2c_msg msg;

	struct i2c_msg msg;

	u8 *buf;

	u8 *buf;





	buf = kmalloc(3, GFP_KERNEL);

	buf = kmalloc(33, GFP_KERNEL);

	if (buf == NULL) {

	if (buf == NULL) {

		printk(KERN_ERR "Unable to kmalloc\n");

		printk(KERN_ERR "Unable to kmalloc\n");

		ret = -ENOMEM;

		ret = -ENOMEM;
@@ -317,10 +317,10 @@ static int ds3000_writeFW(struct ds3000_state *state, int reg, 
	msg.addr = state->config->demod_address;

	msg.addr = state->config->demod_address;

	msg.flags = 0;

	msg.flags = 0;

	msg.buf = buf;

	msg.buf = buf;

	msg.len = 3;

	msg.len = 33;





	for (i = 0; i < len; i += 2) {

	for (i = 0; i < len; i += 32) {

		memcpy(buf + 1, data + i, 2);

		memcpy(buf + 1, data + i, 32);





		dprintk("%s: write reg 0x%02x, len = %d\n", __func__, reg, len);

		dprintk("%s: write reg 0x%02x, len = %d\n", __func__, reg, len);