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ARM: shmobile: Specify device latencies for SH7372 devices directly

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The results of adaptive latency computations in
GENPD_DEV_TIMED_CALLBACK() show that the start/stop and save/restore
state latencies of all devices on SH7372 I have tried are a little
below 250 us.  Therefore, if the 250 us is used as the common initial
value of the latency fields in struct gpd_timing_data for all devices
on SH7372, the latency values will never have to change at run time
and there won't be any overhead related to re-computation of the
corresponding PM QoS data.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Magnus Damm <damm@opensource.se>
This commit is contained in:
Rafael J. Wysocki 2012-08-08 00:28:36 +02:00
parent 455ae3a5d4
commit c37b7a7b34
1 changed files with 33 additions and 24 deletions

57
arch/arm/mach-shmobile/setup-sh7372.c

@ -999,8 +999,17 @@ static struct platform_device *sh7372_late_devices[] __initdata = {
&spu1_device,
};
#define DEV_LATENCY_NS 250000
void __init sh7372_add_standard_devices(void)
{
struct gpd_timing_data latencies = {
.stop_latency_ns = DEV_LATENCY_NS,
.start_latency_ns = DEV_LATENCY_NS,
.save_state_latency_ns = DEV_LATENCY_NS,
.restore_state_latency_ns = DEV_LATENCY_NS,
};
sh7372_init_pm_domains();
platform_add_devices(sh7372_early_devices,
@ -1009,30 +1018,30 @@ void __init sh7372_add_standard_devices(void)
platform_add_devices(sh7372_late_devices,
ARRAY_SIZE(sh7372_late_devices));
rmobile_add_device_to_domain("A3RV", &vpu_device);
rmobile_add_device_to_domain("A4MP", &spu0_device);
rmobile_add_device_to_domain("A4MP", &spu1_device);
rmobile_add_device_to_domain("A3SP", &scif0_device);
rmobile_add_device_to_domain("A3SP", &scif1_device);
rmobile_add_device_to_domain("A3SP", &scif2_device);
rmobile_add_device_to_domain("A3SP", &scif3_device);
rmobile_add_device_to_domain("A3SP", &scif4_device);
rmobile_add_device_to_domain("A3SP", &scif5_device);
rmobile_add_device_to_domain("A3SP", &scif6_device);
rmobile_add_device_to_domain("A3SP", &iic1_device);
rmobile_add_device_to_domain("A3SP", &dma0_device);
rmobile_add_device_to_domain("A3SP", &dma1_device);
rmobile_add_device_to_domain("A3SP", &dma2_device);
rmobile_add_device_to_domain("A3SP", &usb_dma0_device);
rmobile_add_device_to_domain("A3SP", &usb_dma1_device);
rmobile_add_device_to_domain("A4R", &iic0_device);
rmobile_add_device_to_domain("A4R", &veu0_device);
rmobile_add_device_to_domain("A4R", &veu1_device);
rmobile_add_device_to_domain("A4R", &veu2_device);
rmobile_add_device_to_domain("A4R", &veu3_device);
rmobile_add_device_to_domain("A4R", &jpu_device);
rmobile_add_device_to_domain("A4R", &tmu00_device);
rmobile_add_device_to_domain("A4R", &tmu01_device);
rmobile_add_device_to_domain_td("A3RV", &vpu_device, &latencies);
rmobile_add_device_to_domain_td("A4MP", &spu0_device, &latencies);
rmobile_add_device_to_domain_td("A4MP", &spu1_device, &latencies);
rmobile_add_device_to_domain_td("A3SP", &scif0_device, &latencies);
rmobile_add_device_to_domain_td("A3SP", &scif1_device, &latencies);
rmobile_add_device_to_domain_td("A3SP", &scif2_device, &latencies);
rmobile_add_device_to_domain_td("A3SP", &scif3_device, &latencies);
rmobile_add_device_to_domain_td("A3SP", &scif4_device, &latencies);
rmobile_add_device_to_domain_td("A3SP", &scif5_device, &latencies);
rmobile_add_device_to_domain_td("A3SP", &scif6_device, &latencies);
rmobile_add_device_to_domain_td("A3SP", &iic1_device, &latencies);
rmobile_add_device_to_domain_td("A3SP", &dma0_device, &latencies);
rmobile_add_device_to_domain_td("A3SP", &dma1_device, &latencies);
rmobile_add_device_to_domain_td("A3SP", &dma2_device, &latencies);
rmobile_add_device_to_domain_td("A3SP", &usb_dma0_device, &latencies);
rmobile_add_device_to_domain_td("A3SP", &usb_dma1_device, &latencies);
rmobile_add_device_to_domain_td("A4R", &iic0_device, &latencies);
rmobile_add_device_to_domain_td("A4R", &veu0_device, &latencies);
rmobile_add_device_to_domain_td("A4R", &veu1_device, &latencies);
rmobile_add_device_to_domain_td("A4R", &veu2_device, &latencies);
rmobile_add_device_to_domain_td("A4R", &veu3_device, &latencies);
rmobile_add_device_to_domain_td("A4R", &jpu_device, &latencies);
rmobile_add_device_to_domain_td("A4R", &tmu00_device, &latencies);
rmobile_add_device_to_domain_td("A4R", &tmu01_device, &latencies);
}
static void __init sh7372_earlytimer_init(void)