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rockchip: clk: rk3399: handle clk_enable requests for USB3

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The "simple" OF glue layer for the Designware USB3 core enables
all refernced clocks.  These need to be need to be implemented
otherwise the driver fails to probe.  A dummy implementation
that simply returns success is sufficient since the RK3399 comes
out of reset with all clock gates open.

Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
This commit is contained in:
Mark Kettenis 2019-06-30 18:01:53 +02:00 committed by Kever Yang
parent 0de8153564
commit 555ceca088
1 changed files with 12 additions and 0 deletions
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12
drivers/clk/rockchip/clk_rk3399.c
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@ -1078,6 +1078,18 @@ static int rk3399_clk_enable(struct clk *clk)
case PCLK_GMAC:
/* Required to successfully probe the Designware GMAC driver */
return 0;
case SCLK_USB3OTG0_REF:
case SCLK_USB3OTG1_REF:
case SCLK_USB3OTG0_SUSPEND:
case SCLK_USB3OTG1_SUSPEND:
case ACLK_USB3OTG0:
case ACLK_USB3OTG1:
case ACLK_USB3_RKSOC_AXI_PERF:
case ACLK_USB3:
case ACLK_USB3_GRF:
/* Required to successfully probe the Designware USB3 driver */
return 0;
}
debug("%s: unsupported clk %ld\n", __func__, clk->id);