clk: rockchip: allow varying mux parameters for cpuclk pll-sources

Thers are only two parent PLLs that APLL and GPLL for core on the
previous SoCs (RK3066/RK3188/RK3288/RK3368). Hence, we set fixed
GPLL as alternate parent when core is switching freq.

Since RK3399 big.LITTLE architecture, we need to select and adapt
more PLLs (ALPLL/ABPLL/DPLL/GPLL) sources.

Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

drivers/clk/rockchip/clk-rk3228.c

@@ -111,7 +111,10 @@ static const struct rockchip_cpuclk_reg_data rk3228_cpuclk_data = {
 	.core_reg = RK2928_CLKSEL_CON(0),
 	.div_core_shift = 0,
 	.div_core_mask = 0x1f,
+	.mux_core_alt = 1,
+	.mux_core_main = 0,
 	.mux_core_shift = 6,
+	.mux_core_mask = 0x1,
 };
 
 PNAME(mux_pll_p)		= { "clk_24m", "xin24m" };