redonkable/alistair23-linux
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[media] cx24120: constify static data

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Use const on the static data, as gcc may optimize better the
code. Also, would prevent that some code would override the
data there.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Patrick Boettcher <patrick.boettcher@posteo.de>
This commit is contained in:
Mauro Carvalho Chehab 2015-05-19 08:19:47 -03:00
parent 5b8bc802e7
commit ec8fe6c925
1 changed files with 12 additions and 6 deletions
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18
drivers/media/dvb-frontends/cx24120.c
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@ -704,12 +704,14 @@ static int cx24120_read_status(struct dvb_frontend *fe, fe_status_t *status)
* Used for decoding the REG_FECMODE register
* once tuned in.
*/
static struct cx24120_modfec {
struct cx24120_modfec {
fe_delivery_system_t delsys;
fe_modulation_t mod;
fe_code_rate_t fec;
u8 val;
} modfec_lookup_table[] = {
};
static const struct cx24120_modfec modfec_lookup_table[] = {
/*delsys mod fec val */
{ SYS_DVBS, QPSK, FEC_1_2, 0x01 },
{ SYS_DVBS, QPSK, FEC_2_3, 0x02 },
@ -784,7 +786,7 @@ static int cx24120_get_fec(struct dvb_frontend *fe)
* There's probably some way of calculating these but I
* can't determine the pattern
*/
static struct cx24120_clock_ratios_table {
struct cx24120_clock_ratios_table {
fe_delivery_system_t delsys;
fe_pilot_t pilot;
fe_modulation_t mod;
@ -792,7 +794,9 @@ static struct cx24120_clock_ratios_table {
u32 m_rat;
u32 n_rat;
u32 rate;
} clock_ratios_table[] = {
};
static const struct cx24120_clock_ratios_table clock_ratios_table[] = {
/*delsys pilot mod fec m_rat n_rat rate */
{ SYS_DVBS2, PILOT_OFF, QPSK, FEC_1_2, 273088, 254505, 274 },
{ SYS_DVBS2, PILOT_OFF, QPSK, FEC_3_5, 17272, 13395, 330 },
@ -921,12 +925,14 @@ static int cx24120_set_inversion(struct cx24120_state *state,
}
/* FEC lookup table for tuning */
static struct cx24120_modfec_table {
struct cx24120_modfec_table {
fe_delivery_system_t delsys;
fe_modulation_t mod;
fe_code_rate_t fec;
u8 val;
} modfec_table[] = {
};
static const struct cx24120_modfec_table modfec_table[] = {
/*delsys mod fec val */
{ SYS_DVBS, QPSK, FEC_1_2, 0x2e },
{ SYS_DVBS, QPSK, FEC_2_3, 0x2f },