From: Mike Turquette <mturquette@linaro.org>
Date: Sun, 1 Dec 2013 20:42:45 +0000 (-0800)
Subject: Merge tag 'sunxi-clk-for-3.13' of https://github.com/mripard/linux into clk-next... 
X-Git-Tag: accepted/tizen/common/20141203.182822~734^2~53
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=1d9438f7b560862fd0832355b4ad199b30e67478;p=platform%2Fkernel%2Flinux-arm64.git

Merge tag 'sunxi-clk-for-3.13' of https://github.com/mripard/linux into clk-next-sunxi-rebase

Allwinner sunXi SoCs clock changes

Those are mostly random fixes, except for one patch to the composite
clock that adds support for automatic reparenting.

Conflicts:
	drivers/clk/sunxi/clk-sunxi.c
---

1d9438f7b560862fd0832355b4ad199b30e67478
diff --cc drivers/clk/sunxi/clk-sunxi.c
index 9bbd035,9665cb8..98fec4e
--- a/drivers/clk/sunxi/clk-sunxi.c
+++ b/drivers/clk/sunxi/clk-sunxi.c
@@@ -616,8 -623,36 +622,33 @@@ static void __init of_sunxi_table_clock
  	}
  }
  
- static void __init sunxi_init_clocks(struct device_node *np)
+ /**
+  * System clock protection
+  *
+  * By enabling these critical clocks, we prevent their accidental gating
+  * by the framework
+  */
+ static void __init sunxi_clock_protect(void)
+ {
+ 	struct clk *clk;
+ 
+ 	/* memory bus clock - sun5i+ */
+ 	clk = clk_get(NULL, "mbus");
+ 	if (!IS_ERR(clk)) {
+ 		clk_prepare_enable(clk);
+ 		clk_put(clk);
+ 	}
+ 
+ 	/* DDR clock - sun4i+ */
+ 	clk = clk_get(NULL, "pll5_ddr");
+ 	if (!IS_ERR(clk)) {
+ 		clk_prepare_enable(clk);
+ 		clk_put(clk);
+ 	}
+ }
+ 
 -void __init sunxi_init_clocks(void)
++static void __init sunxi_init_clocks(void)
  {
 -	/* Register all the simple and basic clocks on DT */
 -	of_clk_init(NULL);
 -
  	/* Register factor clocks */
  	of_sunxi_table_clock_setup(clk_factors_match, sunxi_factors_clk_setup);
  
@@@ -629,9 -664,7 +660,12 @@@
  
  	/* Register gate clocks */
  	of_sunxi_table_clock_setup(clk_gates_match, sunxi_gates_clk_setup);
+ 
+ 	/* Enable core system clocks */
+ 	sunxi_clock_protect();
  }
 +CLK_OF_DECLARE(sun4i_a10_clk_init, "allwinner,sun4i-a10", sunxi_init_clocks);
 +CLK_OF_DECLARE(sun5i_a10s_clk_init, "allwinner,sun5i-a10s", sunxi_init_clocks);
 +CLK_OF_DECLARE(sun5i_a13_clk_init, "allwinner,sun5i-a13", sunxi_init_clocks);
 +CLK_OF_DECLARE(sun6i_a31_clk_init, "allwinner,sun6i-a31", sunxi_init_clocks);
 +CLK_OF_DECLARE(sun7i_a20_clk_init, "allwinner,sun7i-a20", sunxi_init_clocks);