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The GPTIMER TLDR register does not need to be written if the GPTIMER is not in autoreload mode. This is the usual case for dynamic tick-enabled kernels. Simulation data indicate that skipping the read that occurs as part of the write should save at least 300-320 ns for each GPTIMER1 timer reprogram. (This assumes L4-Wakeup is at 19MHz and GPTIMER write posting is enabled.) Skipping the write itself probably won't have much impact since it should be posted on the OCP interconnect. Tested on 2430SDP and 3430SDP. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Richard Woodruff <r-woodruff2@ti.com> Acked-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com> |
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| .. | ||
| include/mach | ||
| clock.c | ||
| common.c | ||
| cpu-omap.c | ||
| debug-devices.c | ||
| debug-leds.c | ||
| devices.c | ||
| dma.c | ||
| dmtimer.c | ||
| fb.c | ||
| gpio.c | ||
| i2c.c | ||
| io.c | ||
| Kconfig | ||
| mailbox.c | ||
| mailbox.h | ||
| Makefile | ||
| mcbsp.c | ||
| mux.c | ||
| ocpi.c | ||
| sram.c | ||
| usb.c | ||