[media] af9013: optimize code size

Precalculate coefficients register values. This reduces text size around 300 bytes.

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

1 files changed, 6 insertions, 31 deletions

diff --git a/drivers/media/dvb/frontends/af9013.c b/drivers/media/dvb/frontends/af9013.c
index 25c5124..6a205e6 100644
--- a/drivers/media/dvb/frontends/af9013.c
+++ b/drivers/media/dvb/frontends/af9013.c
@@ -220,8 +220,7 @@ static u32 af913_div(u32 a, u32 b, u32 x)
 
 static int af9013_set_coeff(struct af9013_state *state, fe_bandwidth_t bw)
 {
-	int ret, i, found;
-	u8 buf[24];
+	int ret, i, j, found;
 	deb_info("%s: adc_clock:%d bw:%d\n", __func__,
 		state->config.adc_clock, bw);
 
@@ -240,37 +239,13 @@ static int af9013_set_coeff(struct af9013_state *state, fe_bandwidth_t bw)
 		goto error;
 	}
 
-	buf[0]  = (u8) ((coeff_table[i].ns_coeff1_2048nu & 0x03000000) >> 24);
-	buf[1]  = (u8) ((coeff_table[i].ns_coeff1_2048nu & 0x00ff0000) >> 16);
-	buf[2]  = (u8) ((coeff_table[i].ns_coeff1_2048nu & 0x0000ff00) >> 8);
-	buf[3]  = (u8) ((coeff_table[i].ns_coeff1_2048nu & 0x000000ff));
-	buf[4]  = (u8) ((coeff_table[i].ns_coeff2_2k     & 0x01c00000) >> 22);
-	buf[5]  = (u8) ((coeff_table[i].ns_coeff2_2k     & 0x003fc000) >> 14);
-	buf[6]  = (u8) ((coeff_table[i].ns_coeff2_2k     & 0x00003fc0) >> 6);
-	buf[7]  = (u8) ((coeff_table[i].ns_coeff2_2k     & 0x0000003f));
-	buf[8]  = (u8) ((coeff_table[i].ns_coeff1_8191nu & 0x03000000) >> 24);
-	buf[9]  = (u8) ((coeff_table[i].ns_coeff1_8191nu & 0x00ffc000) >> 16);
-	buf[10] = (u8) ((coeff_table[i].ns_coeff1_8191nu & 0x0000ff00) >> 8);
-	buf[11] = (u8) ((coeff_table[i].ns_coeff1_8191nu & 0x000000ff));
-	buf[12] = (u8) ((coeff_table[i].ns_coeff1_8192nu & 0x03000000) >> 24);
-	buf[13] = (u8) ((coeff_table[i].ns_coeff1_8192nu & 0x00ffc000) >> 16);
-	buf[14] = (u8) ((coeff_table[i].ns_coeff1_8192nu & 0x0000ff00) >> 8);
-	buf[15] = (u8) ((coeff_table[i].ns_coeff1_8192nu & 0x000000ff));
-	buf[16] = (u8) ((coeff_table[i].ns_coeff1_8193nu & 0x03000000) >> 24);
-	buf[17] = (u8) ((coeff_table[i].ns_coeff1_8193nu & 0x00ffc000) >> 16);
-	buf[18] = (u8) ((coeff_table[i].ns_coeff1_8193nu & 0x0000ff00) >> 8);
-	buf[19] = (u8) ((coeff_table[i].ns_coeff1_8193nu & 0x000000ff));
-	buf[20] = (u8) ((coeff_table[i].ns_coeff2_8k     & 0x01c00000) >> 22);
-	buf[21] = (u8) ((coeff_table[i].ns_coeff2_8k     & 0x003fc000) >> 14);
-	buf[22] = (u8) ((coeff_table[i].ns_coeff2_8k     & 0x00003fc0) >> 6);
-	buf[23] = (u8) ((coeff_table[i].ns_coeff2_8k     & 0x0000003f));
-
-	deb_info("%s: coeff:", __func__);
-	debug_dump(buf, sizeof(buf), deb_info);
+	deb_info("%s: coeff: ", __func__);
+	debug_dump(coeff_table[i].val, sizeof(coeff_table[i].val), deb_info);
 
 	/* program */
-	for (i = 0; i < sizeof(buf); i++) {
-		ret = af9013_write_reg(state, 0xae00 + i, buf[i]);
+	for (j = 0; j < sizeof(coeff_table[i].val); j++) {
+		ret = af9013_write_reg(state, 0xae00 + j,
+			coeff_table[i].val[j]);
 		if (ret)
 			break;
 	}