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drm/etnaviv: remove unnecessary clock stabilization delay

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There is no reason to wait for clock stabilization here, as the clock
framework guarantees that PLL clock sources are stable before clk_enable
returns.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
This commit is contained in:
Philipp Zabel
2017-10-09 12:03:31 +02:00
committed by Lucas Stach
parent 4046217954
commit 8272170f7d
1 changed files with 0 additions and 3 deletions
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3
drivers/gpu/drm/etnaviv/etnaviv_gpu.c
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@@ -444,9 +444,6 @@ static int etnaviv_hw_reset(struct etnaviv_gpu *gpu)
control = VIVS_HI_CLOCK_CONTROL_FSCALE_VAL(fscale);
etnaviv_gpu_load_clock(gpu, control);
/* Wait for stable clock. Vivante's code waited for 1ms */
usleep_range(1000, 10000);
/* isolate the GPU. */
control |= VIVS_HI_CLOCK_CONTROL_ISOLATE_GPU;
gpu_write(gpu, VIVS_HI_CLOCK_CONTROL, control);