From 77a98da102aa94f1efc4507962eaad710424fcd3 Mon Sep 17 00:00:00 2001 From: Heiko Stuebner Date: Wed, 17 Jun 2015 22:30:00 +0200 Subject: [PATCH v2 1/9] clk: rockchip: rk3288: add CLK_SET_RATE_PARENT to sclk_mac The dwmac ethernet controller on the rk3288 supports phys connected via rgmii and rmii. With rgmii phys it is expected that the mac clock is provided externally while with rmii phys the clock can be external but also generated from the plls. In the later case it of course needs be at 50MHz, which gets set from the dwmac_rk driver. As most devices use a rgmii phy it never surfaced so far that the mac clk mux, doesn't go up one lever to the pll clock in the rmii case with internal clock generation, as it is missing the CLK_SET_RATE_PARENT flag, and thus will not set the correct frequency in most cases. Fixes: b9e4ba541607 ("clk: rockchip: add clock controller for rk3288") Cc: stable@vger.kernel.org Signed-off-by: Heiko Stuebner --- drivers/clk/rockchip/clk-rk3288.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/rockchip/clk-rk3288.c b/drivers/clk/rockchip/clk-rk3288.c index 4f817ed..0211162 100644 --- a/drivers/clk/rockchip/clk-rk3288.c +++ b/drivers/clk/rockchip/clk-rk3288.c @@ -578,7 +578,7 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { COMPOSITE(0, "mac_pll_src", mux_pll_src_npll_cpll_gpll_p, 0, RK3288_CLKSEL_CON(21), 0, 2, MFLAGS, 8, 5, DFLAGS, RK3288_CLKGATE_CON(2), 5, GFLAGS), - MUX(SCLK_MAC, "mac_clk", mux_mac_p, 0, + MUX(SCLK_MAC, "mac_clk", mux_mac_p, CLK_SET_RATE_PARENT, RK3288_CLKSEL_CON(21), 4, 1, MFLAGS), GATE(SCLK_MACREF_OUT, "sclk_macref_out", "mac_clk", 0, RK3288_CLKGATE_CON(5), 3, GFLAGS), -- 2.1.4