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rockchip: clk: rk3399: handle clk_enable requests for GMAC

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Since commit ba1f966725 ("net: designware: add clock support"), the
designware GMAC driver enables all referenced clocks. While this is a
no-op for the RK3399 during boot-up (reset behaviour has all the clock
gates open anyway), we still need to handle the clock-ids passed in
the enable op of the clock-driver and return a success.

This change extends the enable-op of the rk3399 clk driver to signal
success to the caller when the clocks for the GMAC are enabled.

References: commit ba1f966725 ("net: designware: add clock support")
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Klaus Goger <klaus.goger@theobroma-systems.com>
This commit is contained in:
Philipp Tomsich 2018-02-16 16:07:24 +01:00
parent 0bb430c849
commit a9bdd67653
1 changed files with 10 additions and 0 deletions
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10
drivers/clk/rockchip/clk_rk3399.c
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@ -997,6 +997,16 @@ static int rk3399_clk_enable(struct clk *clk)
case HCLK_HOST1:
case HCLK_HOST1_ARB:
return 0;
case SCLK_MAC:
case SCLK_MAC_RX:
case SCLK_MAC_TX:
case SCLK_MACREF:
case SCLK_MACREF_OUT:
case ACLK_GMAC:
case PCLK_GMAC:
/* Required to successfully probe the Designware GMAC driver */
return 0;
}
debug("%s: unsupported clk %ld\n", __func__, clk->id);