Merge commit '5bc66170dc486556a1e36fd384463536573f4b82' into x86/urgent

From Borislav Petkov <bp@amd64.org>:

Below is a RAS fix which reverts the addition of a sysfs attribute
which we agreed is not needed, post-factum. And this should go in now
because that sysfs attribute is going to end up in 3.7 otherwise and
thus exposed to userspace; removing it then would be a lot harder.

This is done as a merge rather than a simple patch/cherry-pick since
the baseline for this patch was not in the previous x86/urgent.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

1 files changed, 22 insertions, 18 deletions

diff --git a/arch/arm/mach-omap2/clkt_dpll.c b/arch/arm/mach-omap2/clkt_dpll.c
index cd7fd0f9114..80411142f48 100644
--- a/arch/arm/mach-omap2/clkt_dpll.c
+++ b/arch/arm/mach-omap2/clkt_dpll.c
@@ -22,8 +22,8 @@
 #include <asm/div64.h>
 
 #include <plat/clock.h>
-#include <plat/cpu.h>
 
+#include "soc.h"
 #include "clock.h"
 #include "cm-regbits-24xx.h"
 #include "cm-regbits-34xx.h"
@@ -87,7 +87,7 @@ static int _dpll_test_fint(struct clk *clk, u8 n)
 	dd = clk->dpll_data;
 
 	/* DPLL divider must result in a valid jitter correction val */
-	fint = clk->parent->rate / n;
+	fint = __clk_get_rate(__clk_get_parent(clk)) / n;
 
 	if (cpu_is_omap24xx()) {
 		/* Should not be called for OMAP2, so warn if it is called */
@@ -105,13 +105,13 @@ static int _dpll_test_fint(struct clk *clk, u8 n)
 	}
 
 	if (fint < fint_min) {
-		pr_debug("rejecting n=%d due to Fint failure, "
-			 "lowering max_divider\n", n);
+		pr_debug("rejecting n=%d due to Fint failure, lowering max_divider\n",
+			 n);
 		dd->max_divider = n;
 		ret = DPLL_FINT_UNDERFLOW;
 	} else if (fint > fint_max) {
-		pr_debug("rejecting n=%d due to Fint failure, "
-			 "boosting min_divider\n", n);
+		pr_debug("rejecting n=%d due to Fint failure, boosting min_divider\n",
+			 n);
 		dd->min_divider = n;
 		ret = DPLL_FINT_INVALID;
 	} else if (cpu_is_omap3430() && fint > OMAP3430_DPLL_FINT_BAND1_MAX &&
@@ -211,7 +211,7 @@ void omap2_init_dpll_parent(struct clk *clk)
 		if (v == OMAP3XXX_EN_DPLL_LPBYPASS ||
 		    v == OMAP3XXX_EN_DPLL_FRBYPASS)
 			clk_reparent(clk, dd->clk_bypass);
-	} else if (cpu_is_omap44xx()) {
+	} else if (soc_is_am33xx() || cpu_is_omap44xx()) {
 		if (v == OMAP4XXX_EN_DPLL_LPBYPASS ||
 		    v == OMAP4XXX_EN_DPLL_FRBYPASS ||
 		    v == OMAP4XXX_EN_DPLL_MNBYPASS)
@@ -252,16 +252,16 @@ u32 omap2_get_dpll_rate(struct clk *clk)
 	if (cpu_is_omap24xx()) {
 		if (v == OMAP2XXX_EN_DPLL_LPBYPASS ||
 		    v == OMAP2XXX_EN_DPLL_FRBYPASS)
-			return dd->clk_bypass->rate;
+			return __clk_get_rate(dd->clk_bypass);
 	} else if (cpu_is_omap34xx()) {
 		if (v == OMAP3XXX_EN_DPLL_LPBYPASS ||
 		    v == OMAP3XXX_EN_DPLL_FRBYPASS)
-			return dd->clk_bypass->rate;
-	} else if (cpu_is_omap44xx()) {
+			return __clk_get_rate(dd->clk_bypass);
+	} else if (soc_is_am33xx() || cpu_is_omap44xx()) {
 		if (v == OMAP4XXX_EN_DPLL_LPBYPASS ||
 		    v == OMAP4XXX_EN_DPLL_FRBYPASS ||
 		    v == OMAP4XXX_EN_DPLL_MNBYPASS)
-			return dd->clk_bypass->rate;
+			return __clk_get_rate(dd->clk_bypass);
 	}
 
 	v = __raw_readl(dd->mult_div1_reg);
@@ -270,7 +270,7 @@ u32 omap2_get_dpll_rate(struct clk *clk)
 	dpll_div = v & dd->div1_mask;
 	dpll_div >>= __ffs(dd->div1_mask);
 
-	dpll_clk = (long long)dd->clk_ref->rate * dpll_mult;
+	dpll_clk = (long long) __clk_get_rate(dd->clk_ref) * dpll_mult;
 	do_div(dpll_clk, dpll_div + 1);
 
 	return dpll_clk;
@@ -296,16 +296,20 @@ long omap2_dpll_round_rate(struct clk *clk, unsigned long target_rate)
 	unsigned long scaled_rt_rp;
 	unsigned long new_rate = 0;
 	struct dpll_data *dd;
+	unsigned long ref_rate;
+	const char *clk_name;
 
 	if (!clk || !clk->dpll_data)
 		return ~0;
 
 	dd = clk->dpll_data;
 
+	ref_rate = __clk_get_rate(dd->clk_ref);
+	clk_name = __clk_get_name(clk);
 	pr_debug("clock: %s: starting DPLL round_rate, target rate %ld\n",
-		 clk->name, target_rate);
+		 clk_name, target_rate);
 
-	scaled_rt_rp = target_rate / (dd->clk_ref->rate / DPLL_SCALE_FACTOR);
+	scaled_rt_rp = target_rate / (ref_rate / DPLL_SCALE_FACTOR);
 	scaled_max_m = dd->max_multiplier * DPLL_SCALE_FACTOR;
 
 	dd->last_rounded_rate = 0;
@@ -332,14 +336,14 @@ long omap2_dpll_round_rate(struct clk *clk, unsigned long target_rate)
 			break;
 
 		r = _dpll_test_mult(&m, n, &new_rate, target_rate,
-				    dd->clk_ref->rate);
+				    ref_rate);
 
 		/* m can't be set low enough for this n - try with a larger n */
 		if (r == DPLL_MULT_UNDERFLOW)
 			continue;
 
 		pr_debug("clock: %s: m = %d: n = %d: new_rate = %ld\n",
-			 clk->name, m, n, new_rate);
+			 clk_name, m, n, new_rate);
 
 		if (target_rate == new_rate) {
 			dd->last_rounded_m = m;
@@ -350,8 +354,8 @@ long omap2_dpll_round_rate(struct clk *clk, unsigned long target_rate)
 	}
 
 	if (target_rate != new_rate) {
-		pr_debug("clock: %s: cannot round to rate %ld\n", clk->name,
-			 target_rate);
+		pr_debug("clock: %s: cannot round to rate %ld\n",
+			 clk_name, target_rate);
 		return ~0;
 	}