clk: tegra20: Use custom CCLK implementation

We're going to use the generic cpufreq-dt driver on Tegra20 and thus CCLK
intermediate re-parenting will be performed by the clock driver. There is
now special CCLK implementation that supports all CCLK quirks, this patch
makes Tegra20 SoCs to use that implementation.

Acked-by: Peter De Schrijver <[e-mail]>
Tested-by: Peter Geis <[e-mail]>
Tested-by: Marcel Ziswiler <[e-mail]>
Tested-by: Jasper Korten <[e-mail]>
Tested-by: David Heidelberg <[e-mail]>
Tested-by: Nicolas Chauvet <[e-mail]>
Signed-off-by: Dmitry Osipenko <[e-mail]>
Signed-off-by: Thierry Reding <[e-mail]>

drivers/clk/tegra/clk-tegra20.c

···
 	.lock_delay = 300,
 	.freq_table = pll_x_freq_table,
 	.flags = TEGRA_PLL_HAS_CPCON | TEGRA_PLL_HAS_LOCK_ENABLE,
+	.pre_rate_change = tegra_cclk_pre_pllx_rate_change,
+	.post_rate_change = tegra_cclk_post_pllx_rate_change,
 };
 
 static struct tegra_clk_pll_params pll_e_params = {
···
 	struct clk *clk;
 
 	/* CCLK */
-	clk = tegra_clk_register_super_mux("cclk", cclk_parents,
+	clk = tegra_clk_register_super_cclk("cclk", cclk_parents,
 			      ARRAY_SIZE(cclk_parents), CLK_SET_RATE_PARENT,
-			      clk_base + CCLK_BURST_POLICY, 0, 4, 0, 0, NULL);
+			      clk_base + CCLK_BURST_POLICY, TEGRA20_SUPER_CLK,
+			      NULL);
 	clks[TEGRA20_CLK_CCLK] = clk;
 
 	/* SCLK */