linux-kernel - [PATCH C 02/13] OMAP3 clock: DPLL{1,2}

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Message-ID: <20090128190811.12092.98984.stgit@localhost.localdomain>
Date:	Wed, 28 Jan 2009 12:08:14 -0700
From:	Paul Walmsley <paul@...an.com>
To:	linux-arm-kernel@...ts.arm.linux.org.uk,
	linux-kernel@...r.kernel.org
Cc:	linux-omap@...r.kernel.org, Paul Walmsley <paul@...an.com>,
	Tony Lindgren <tony@...mide.com>
Subject: [PATCH C 02/13] OMAP3 clock: DPLL{1,2}_FCLK clksel can divide by 4

OMAP34xx ES2 TRM Delta G to H states that the divider for DPLL1_FCLK and
DPLL2_FCLK can divide by 4 in addition to dividing by 1 and 2. Encode this
into the OMAP3 clock framework.

linux-omap source commit is 050684c18f2ea0b08fdd5233a0cd3c7f96e00a0e.

Signed-off-by: Paul Walmsley <paul@...an.com>
Signed-off-by: Tony Lindgren <tony@...mide.com>
---
 arch/arm/mach-omap2/clock34xx.h |   20 ++++++++++++++++----
 1 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-omap2/clock34xx.h b/arch/arm/mach-omap2/clock34xx.h
index 781da12..9d123c6 100644
--- a/arch/arm/mach-omap2/clock34xx.h
+++ b/arch/arm/mach-omap2/clock34xx.h
@@ -1102,8 +1102,15 @@ static struct clk corex2_fck = {
 
 /* DPLL power domain clock controls */
 
-static const struct clksel div2_core_clksel[] = {
-	{ .parent = &core_ck, .rates = div2_rates },
+static const struct clksel_rate div4_rates[] = {
+	{ .div = 1, .val = 1, .flags = RATE_IN_343X | DEFAULT_RATE },
+	{ .div = 2, .val = 2, .flags = RATE_IN_343X },
+	{ .div = 4, .val = 4, .flags = RATE_IN_343X },
+	{ .div = 0 }
+};
+
+static const struct clksel div4_core_clksel[] = {
+	{ .parent = &core_ck, .rates = div4_rates },
 	{ .parent = NULL }
 };
 
@@ -1113,7 +1120,7 @@ static struct clk dpll1_fck = {
 	.init		= &omap2_init_clksel_parent,
 	.clksel_reg	= _OMAP34XX_CM_REGADDR(MPU_MOD, OMAP3430_CM_CLKSEL1_PLL),
 	.clksel_mask	= OMAP3430_MPU_CLK_SRC_MASK,
-	.clksel		= div2_core_clksel,
+	.clksel		= div4_core_clksel,
 	.flags		= CLOCK_IN_OMAP343X | RATE_PROPAGATES |
 				PARENT_CONTROLS_CLOCK,
 	.clkdm		= { .name = "cm_clkdm" },
@@ -1191,7 +1198,7 @@ static struct clk dpll2_fck = {
 	.init		= &omap2_init_clksel_parent,
 	.clksel_reg	= _OMAP34XX_CM_REGADDR(OMAP3430_IVA2_MOD, OMAP3430_CM_CLKSEL1_PLL),
 	.clksel_mask	= OMAP3430_IVA2_CLK_SRC_MASK,
-	.clksel		= div2_core_clksel,
+	.clksel		= div4_core_clksel,
 	.flags		= CLOCK_IN_OMAP343X | RATE_PROPAGATES |
 				PARENT_CONTROLS_CLOCK,
 	.clkdm		= { .name = "cm_clkdm" },
@@ -1228,6 +1235,11 @@ static struct clk iva2_ck = {
 
 /* Common interface clocks */
 
+static const struct clksel div2_core_clksel[] = {
+	{ .parent = &core_ck, .rates = div2_rates },
+	{ .parent = NULL }
+};
+
 static struct clk l3_ick = {
 	.name		= "l3_ick",
 	.parent		= &core_ck,


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