Change am335x adc programming to use more time if available.

More retries in the same time for vesp commands.

controller/am335x/block_am335x_adc.c

@@ -177,17 +177,25 @@ static struct controller_block * block_am335x_adc_create(char *name, int argc, v
 	factor = 200000 / frequency;
 	if (factor > 16) {
 		avg = AM335X_ADC_STEPCONFIG_AVERAGE_16;
+		factor /= 16;
 	} else if (factor > 8) {
 		avg = AM335X_ADC_STEPCONFIG_AVERAGE_8;
+		factor /= 8;
 	} else if (factor > 4) {
 		avg = AM335X_ADC_STEPCONFIG_AVERAGE_4;
+		factor /= 4;
 	} else if (factor > 2) {
 		avg = AM335X_ADC_STEPCONFIG_AVERAGE_2;
+		factor /= 2;
 	} else {
 		avg = AM335X_ADC_STEPCONFIG_AVERAGE_1;
 	}
+	factor /= 100;
+	if (!factor)
+		factor = 1;
+	log_send(LOG_T_DEBUG, "%s: factor: %d", name, factor);
 
-	am335x_write32(base, AM335X_ADC_REG_ADC_CLKDIV, 0);
+	am335x_write32(base, AM335X_ADC_REG_ADC_CLKDIV, factor - 1);
 
 	am335x_write32(base, AM335X_ADC_REG_IDLECONFIG, 0);
 	am335x_write32(base, AM335X_ADC_REG_TS_CHARGE_DELAY, 1);

controller/vesp/vesp.c

@@ -353,7 +353,11 @@ ssize_t vesp_command_real(struct controller_bus *bus,
 
 	struct timespec t_timeout;
 	clock_gettime(CLOCK_MONOTONIC, &t_timeout);
-	t_timeout.tv_sec += 1;
+	t_timeout.tv_nsec += 100000000;
+	if (t_timeout.tv_nsec > 1000000000) {
+		t_timeout.tv_nsec -= 1000000000;
+		t_timeout.tv_sec++;
+	}
 	while (1) {
 		struct timespec timeout, t_now;
 		
@@ -418,7 +422,7 @@ ssize_t vesp_command(struct controller_bus *bus,
     void *res, size_t res_size)
 {
 	struct command_data data;
-	int retries = 3;
+	int retries = 30;
 	
 	do {
 		data.bus = bus;