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 --- drivers/clk/rockchip/clk_rk3399.c | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/drivers/clk/rockchip/clk_rk3399.c b/drivers/clk/rockchip/clk_rk3399.c index 79007b8682..d9950c159b 100644 --- a/drivers/clk/rockchip/clk_rk3399.c +++ b/drivers/clk/rockchip/clk_rk3399.c @@ -1080,6 +1080,18 @@ 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);