None of the comedi drivers use the i8253_cascade_ns_to_timer_2div_old()
or i8253_cascade_ns_to_timer_power() helpers to calculate the cascaded
divisors. Remove them to avoid any confusion.
Signed-off-by: H Hartley Sweeten <hsweeten@xxxxxxxxxxxxxxxxxxx>
Cc: Ian Abbott <abbotti@xxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/staging/comedi/drivers/8253.h | 93 -----------------------------------
1 file changed, 93 deletions(-)
diff --git a/drivers/staging/comedi/drivers/8253.h b/drivers/staging/comedi/drivers/8253.h
index 88cd6f2..fb2c9d9 100644
--- a/drivers/staging/comedi/drivers/8253.h
+++ b/drivers/staging/comedi/drivers/8253.h
@@ -30,99 +30,6 @@
#define I8254_OSC_BASE_2MHZ 500
#define I8254_OSC_BASE_1MHZ 1000
-static inline void i8253_cascade_ns_to_timer_2div_old(int i8253_osc_base,
- unsigned int *d1,
- unsigned int *d2,
- unsigned int *nanosec,
- int round_mode)
-{
- int divider;
- int div1, div2;
- int div1_glb, div2_glb, ns_glb;
- int div1_lub, div2_lub, ns_lub;
- int ns;
-
- divider = (*nanosec + i8253_osc_base / 2) / i8253_osc_base;
-
- /* find 2 integers 1<={x,y}<=65536 such that x*y is
- close to divider */
-
- div1_lub = div2_lub = 0;
- div1_glb = div2_glb = 0;
-
- ns_glb = 0;
- ns_lub = 0xffffffff;
-
- div2 = 0x10000;
- for (div1 = divider / 65536 + 1; div1 < div2; div1++) {
- div2 = divider / div1;
-
- ns = i8253_osc_base * div1 * div2;
- if (ns <= *nanosec && ns > ns_glb) {
- ns_glb = ns;
- div1_glb = div1;
- div2_glb = div2;
- }
-
- div2++;
- if (div2 <= 65536) {
- ns = i8253_osc_base * div1 * div2;
- if (ns > *nanosec && ns < ns_lub) {
- ns_lub = ns;
- div1_lub = div1;
- div2_lub = div2;
- }
- }
- }
-
- *nanosec = div1_lub * div2_lub * i8253_osc_base;
- *d1 = div1_lub & 0xffff;
- *d2 = div2_lub & 0xffff;
- return;
-}
-
-static inline void i8253_cascade_ns_to_timer_power(int i8253_osc_base,
- unsigned int *d1,
- unsigned int *d2,
- unsigned int *nanosec,
- int round_mode)
-{
- int div1, div2;
- int base;
-
- for (div1 = 2; div1 <= (1 << 16); div1 <<= 1) {
- base = i8253_osc_base * div1;
- round_mode &= TRIG_ROUND_MASK;
- switch (round_mode) {
- case TRIG_ROUND_NEAREST:
- default:
- div2 = (*nanosec + base / 2) / base;
- break;
- case TRIG_ROUND_DOWN:
- div2 = (*nanosec) / base;
- break;
- case TRIG_ROUND_UP:
- div2 = (*nanosec + base - 1) / base;
- break;
- }
- if (div2 < 2)
- div2 = 2;
- if (div2 <= 65536) {
- *nanosec = div2 * base;
- *d1 = div1 & 0xffff;
- *d2 = div2 & 0xffff;
- return;
- }
- }
-
- /* shouldn't get here */
- div1 = 0x10000;
- div2 = 0x10000;
- *nanosec = div1 * div2 * i8253_osc_base;
- *d1 = div1 & 0xffff;
- *d2 = div2 & 0xffff;
-}
-
static inline void i8253_cascade_ns_to_timer(int i8253_osc_base,
unsigned int *d1,
unsigned int *d2,
--
1.9.2
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