Merge tag 'for-v3.14-rc/omap-fixes-a' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into omap-for-v3.14/fixes

Several OMAP clock/PM/device data fixes for v3.14-rc.  There's an OMAP5
reboot fix in there, plus a clock fix for rate computations involving
x2 multipliers.

Basic build, boot, and PM test logs are available here:

http://www.pwsan.com/omap/testlogs/prcm-fixes-a-v3.14-rc/20140219131753/

Note that most full-chip PM is broken since the v3.14 merge; it's
not caused by this series.

5 files changed, 96 insertions, 31 deletions

diff --git a/arch/arm/mach-omap2/cclock3xxx_data.c b/arch/arm/mach-omap2/cclock3xxx_data.c
index 3b05aea56d1f..11ed9152e665 100644
--- a/arch/arm/mach-omap2/cclock3xxx_data.c
+++ b/arch/arm/mach-omap2/cclock3xxx_data.c
@@ -433,7 +433,9 @@ static const struct clk_ops dpll4_m5x2_ck_ops = {
 	.enable		= &omap2_dflt_clk_enable,
 	.disable	= &omap2_dflt_clk_disable,
 	.is_enabled	= &omap2_dflt_clk_is_enabled,
+	.set_rate	= &omap3_clkoutx2_set_rate,
 	.recalc_rate	= &omap3_clkoutx2_recalc,
+	.round_rate	= &omap3_clkoutx2_round_rate,
 };
 
 static const struct clk_ops dpll4_m5x2_ck_3630_ops = {
diff --git a/arch/arm/mach-omap2/dpll3xxx.c b/arch/arm/mach-omap2/dpll3xxx.c
index 3185ced807c9..3c418ea54bbe 100644
--- a/arch/arm/mach-omap2/dpll3xxx.c
+++ b/arch/arm/mach-omap2/dpll3xxx.c
@@ -623,6 +623,32 @@ void omap3_dpll_deny_idle(struct clk_hw_omap *clk)
 
 /* Clock control for DPLL outputs */
 
+/* Find the parent DPLL for the given clkoutx2 clock */
+static struct clk_hw_omap *omap3_find_clkoutx2_dpll(struct clk_hw *hw)
+{
+	struct clk_hw_omap *pclk = NULL;
+	struct clk *parent;
+
+	/* Walk up the parents of clk, looking for a DPLL */
+	do {
+		do {
+			parent = __clk_get_parent(hw->clk);
+			hw = __clk_get_hw(parent);
+		} while (hw && (__clk_get_flags(hw->clk) & CLK_IS_BASIC));
+		if (!hw)
+			break;
+		pclk = to_clk_hw_omap(hw);
+	} while (pclk && !pclk->dpll_data);
+
+	/* clk does not have a DPLL as a parent?  error in the clock data */
+	if (!pclk) {
+		WARN_ON(1);
+		return NULL;
+	}
+
+	return pclk;
+}
+
 /**
  * omap3_clkoutx2_recalc - recalculate DPLL X2 output virtual clock rate
  * @clk: DPLL output struct clk
@@ -637,27 +663,14 @@ unsigned long omap3_clkoutx2_recalc(struct clk_hw *hw,
 	unsigned long rate;
 	u32 v;
 	struct clk_hw_omap *pclk = NULL;
-	struct clk *parent;
 
 	if (!parent_rate)
 		return 0;
 
-	/* Walk up the parents of clk, looking for a DPLL */
-	do {
-		do {
-			parent = __clk_get_parent(hw->clk);
-			hw = __clk_get_hw(parent);
-		} while (hw && (__clk_get_flags(hw->clk) & CLK_IS_BASIC));
-		if (!hw)
-			break;
-		pclk = to_clk_hw_omap(hw);
-	} while (pclk && !pclk->dpll_data);
+	pclk = omap3_find_clkoutx2_dpll(hw);
 
-	/* clk does not have a DPLL as a parent?  error in the clock data */
-	if (!pclk) {
-		WARN_ON(1);
+	if (!pclk)
 		return 0;
-	}
 
 	dd = pclk->dpll_data;
 
@@ -672,6 +685,55 @@ unsigned long omap3_clkoutx2_recalc(struct clk_hw *hw,
 	return rate;
 }
 
+int omap3_clkoutx2_set_rate(struct clk_hw *hw, unsigned long rate,
+					unsigned long parent_rate)
+{
+	return 0;
+}
+
+long omap3_clkoutx2_round_rate(struct clk_hw *hw, unsigned long rate,
+		unsigned long *prate)
+{
+	const struct dpll_data *dd;
+	u32 v;
+	struct clk_hw_omap *pclk = NULL;
+
+	if (!*prate)
+		return 0;
+
+	pclk = omap3_find_clkoutx2_dpll(hw);
+
+	if (!pclk)
+		return 0;
+
+	dd = pclk->dpll_data;
+
+	/* TYPE J does not have a clkoutx2 */
+	if (dd->flags & DPLL_J_TYPE) {
+		*prate = __clk_round_rate(__clk_get_parent(pclk->hw.clk), rate);
+		return *prate;
+	}
+
+	WARN_ON(!dd->enable_mask);
+
+	v = omap2_clk_readl(pclk, dd->control_reg) & dd->enable_mask;
+	v >>= __ffs(dd->enable_mask);
+
+	/* If in bypass, the rate is fixed to the bypass rate*/
+	if (v != OMAP3XXX_EN_DPLL_LOCKED)
+		return *prate;
+
+	if (__clk_get_flags(hw->clk) & CLK_SET_RATE_PARENT) {
+		unsigned long best_parent;
+
+		best_parent = (rate / 2);
+		*prate = __clk_round_rate(__clk_get_parent(hw->clk),
+				best_parent);
+	}
+
+	return *prate * 2;
+}
+
 /* OMAP3/4 non-CORE DPLL clkops */
 const struct clk_hw_omap_ops clkhwops_omap3_dpll = {
 	.allow_idle	= omap3_dpll_allow_idle,
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 42d81885c700..1f33f5db10d5 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -1947,29 +1947,31 @@ static int _ocp_softreset(struct omap_hwmod *oh)
 		goto dis_opt_clks;
 
 	_write_sysconfig(v, oh);
-	ret = _clear_softreset(oh, &v);
-	if (ret)
-		goto dis_opt_clks;
-
-	_write_sysconfig(v, oh);
 
 	if (oh->class->sysc->srst_udelay)
 		udelay(oh->class->sysc->srst_udelay);
 
 	c = _wait_softreset_complete(oh);
-	if (c == MAX_MODULE_SOFTRESET_WAIT)
+	if (c == MAX_MODULE_SOFTRESET_WAIT) {
 		pr_warning("omap_hwmod: %s: softreset failed (waited %d usec)\n",
 			   oh->name, MAX_MODULE_SOFTRESET_WAIT);
-	else
+		ret = -ETIMEDOUT;
+		goto dis_opt_clks;
+	} else {
 		pr_debug("omap_hwmod: %s: softreset in %d usec\n", oh->name, c);
+	}
+
+	ret = _clear_softreset(oh, &v);
+	if (ret)
+		goto dis_opt_clks;
+
+	_write_sysconfig(v, oh);
 
 	/*
 	 * XXX add _HWMOD_STATE_WEDGED for modules that don't come back from
 	 * _wait_target_ready() or _reset()
 	 */
 
-	ret = (c == MAX_MODULE_SOFTRESET_WAIT) ? -ETIMEDOUT : 0;
-
 dis_opt_clks:
 	if (oh->flags & HWMOD_CONTROL_OPT_CLKS_IN_RESET)
 		_disable_optional_clocks(oh);
diff --git a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
index 18f333c440db..810c205d668b 100644
--- a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
@@ -1365,11 +1365,10 @@ static struct omap_hwmod_class_sysconfig dra7xx_spinlock_sysc = {
 	.rev_offs	= 0x0000,
 	.sysc_offs	= 0x0010,
 	.syss_offs	= 0x0014,
-	.sysc_flags	= (SYSC_HAS_AUTOIDLE | SYSC_HAS_CLOCKACTIVITY |
-			   SYSC_HAS_ENAWAKEUP | SYSC_HAS_SIDLEMODE |
-			   SYSC_HAS_SOFTRESET | SYSS_HAS_RESET_STATUS),
-	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
-			   SIDLE_SMART_WKUP),
+	.sysc_flags	= (SYSC_HAS_AUTOIDLE | SYSC_HAS_ENAWAKEUP |
+			   SYSC_HAS_SIDLEMODE | SYSC_HAS_SOFTRESET |
+			   SYSS_HAS_RESET_STATUS),
+	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
 	.sysc_fields	= &omap_hwmod_sysc_type1,
 };
 
diff --git a/arch/arm/mach-omap2/prminst44xx.c b/arch/arm/mach-omap2/prminst44xx.c
index 6334b96b4097..280f3c58abe5 100644
--- a/arch/arm/mach-omap2/prminst44xx.c
+++ b/arch/arm/mach-omap2/prminst44xx.c
@@ -183,11 +183,11 @@ void omap4_prminst_global_warm_sw_reset(void)
 					OMAP4_PRM_RSTCTRL_OFFSET);
 	v |= OMAP4430_RST_GLOBAL_WARM_SW_MASK;
 	omap4_prminst_write_inst_reg(v, OMAP4430_PRM_PARTITION,
-				 OMAP4430_PRM_DEVICE_INST,
+				 dev_inst,
 				 OMAP4_PRM_RSTCTRL_OFFSET);
 
 	/* OCP barrier */
 	v = omap4_prminst_read_inst_reg(OMAP4430_PRM_PARTITION,
-				    OMAP4430_PRM_DEVICE_INST,
+				    dev_inst,
 				    OMAP4_PRM_RSTCTRL_OFFSET);
 }