path: root/recipes-kernel/linux/linux-3.0/pm-wip/voltdm/0076-OMAP4-clock-data-Add-missing-divider-selection-for-a.patch

From 6cf33470647dc663d1f36eeb78539a98bf4d5bc6 Mon Sep 17 00:00:00 2001
From: Rajendra Nayak <rnayak@ti.com>
Date: Sun, 10 Jul 2011 05:56:14 -0600
Subject: [PATCH 076/149] OMAP4: clock data: Add missing divider selection for auxclks

On OMAP4 the auxclk nodes (part of SCRM) support both
divider as well as parent selection.
Supporting this requires splitting the existing nodes
(which support only parent selection) into two nodes,
one for parent and another for divider selection.
The nodes for parent selection are named auxclk*_src_ck
and the ones for divider selection as auxclk*_ck.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
[b-cousson@ti.com: Rebase on top of clock cleanup
and autogen alignement]
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/mach-omap2/clock44xx_data.c |  176 +++++++++++++++++++++++++++++-----
 1 files changed, 152 insertions(+), 24 deletions(-)

diff --git a/arch/arm/mach-omap2/clock44xx_data.c b/arch/arm/mach-omap2/clock44xx_data.c
index 763507f..07bf0de 100644
--- a/arch/arm/mach-omap2/clock44xx_data.c
+++ b/arch/arm/mach-omap2/clock44xx_data.c
@@ -2774,19 +2774,39 @@ static struct clk trace_clk_div_ck = {
 
 /* SCRM aux clk nodes */
 
-static const struct clksel auxclk_sel[] = {
+static const struct clksel auxclk_src_sel[] = {
 	{ .parent = &sys_clkin_ck, .rates = div_1_0_rates },
 	{ .parent = &dpll_core_m3x2_ck, .rates = div_1_1_rates },
 	{ .parent = &dpll_per_m3x2_ck, .rates = div_1_2_rates },
 	{ .parent = NULL },
 };
 
-static struct clk auxclk0_ck = {
-	.name		= "auxclk0_ck",
+static const struct clksel_rate div16_1to16_rates[] = {
+	{ .div = 1, .val = 0, .flags = RATE_IN_4430 },
+	{ .div = 2, .val = 1, .flags = RATE_IN_4430 },
+	{ .div = 3, .val = 2, .flags = RATE_IN_4430 },
+	{ .div = 4, .val = 3, .flags = RATE_IN_4430 },
+	{ .div = 5, .val = 4, .flags = RATE_IN_4430 },
+	{ .div = 6, .val = 5, .flags = RATE_IN_4430 },
+	{ .div = 7, .val = 6, .flags = RATE_IN_4430 },
+	{ .div = 8, .val = 7, .flags = RATE_IN_4430 },
+	{ .div = 9, .val = 8, .flags = RATE_IN_4430 },
+	{ .div = 10, .val = 9, .flags = RATE_IN_4430 },
+	{ .div = 11, .val = 10, .flags = RATE_IN_4430 },
+	{ .div = 12, .val = 11, .flags = RATE_IN_4430 },
+	{ .div = 13, .val = 12, .flags = RATE_IN_4430 },
+	{ .div = 14, .val = 13, .flags = RATE_IN_4430 },
+	{ .div = 15, .val = 14, .flags = RATE_IN_4430 },
+	{ .div = 16, .val = 15, .flags = RATE_IN_4430 },
+	{ .div = 0 },
+};
+
+static struct clk auxclk0_src_ck = {
+	.name		= "auxclk0_src_ck",
 	.parent		= &sys_clkin_ck,
 	.init		= &omap2_init_clksel_parent,
 	.ops		= &clkops_omap2_dflt,
-	.clksel		= auxclk_sel,
+	.clksel		= auxclk_src_sel,
 	.clksel_reg	= OMAP4_SCRM_AUXCLK0,
 	.clksel_mask	= OMAP4_SRCSELECT_MASK,
 	.recalc		= &omap2_clksel_recalc,
@@ -2794,12 +2814,29 @@ static struct clk auxclk0_ck = {
 	.enable_bit	= OMAP4_ENABLE_SHIFT,
 };
 
-static struct clk auxclk1_ck = {
-	.name		= "auxclk1_ck",
+static const struct clksel auxclk0_sel[] = {
+	{ .parent = &auxclk0_src_ck, .rates = div16_1to16_rates },
+	{ .parent = NULL },
+};
+
+static struct clk auxclk0_ck = {
+	.name		= "auxclk0_ck",
+	.parent		= &auxclk0_src_ck,
+	.clksel		= auxclk0_sel,
+	.clksel_reg	= OMAP4_SCRM_AUXCLK0,
+	.clksel_mask	= OMAP4_CLKDIV_MASK,
+	.ops		= &clkops_null,
+	.recalc		= &omap2_clksel_recalc,
+	.round_rate	= &omap2_clksel_round_rate,
+	.set_rate	= &omap2_clksel_set_rate,
+};
+
+static struct clk auxclk1_src_ck = {
+	.name		= "auxclk1_src_ck",
 	.parent		= &sys_clkin_ck,
 	.init		= &omap2_init_clksel_parent,
 	.ops		= &clkops_omap2_dflt,
-	.clksel		= auxclk_sel,
+	.clksel		= auxclk_src_sel,
 	.clksel_reg	= OMAP4_SCRM_AUXCLK1,
 	.clksel_mask	= OMAP4_SRCSELECT_MASK,
 	.recalc		= &omap2_clksel_recalc,
@@ -2807,12 +2844,29 @@ static struct clk auxclk1_ck = {
 	.enable_bit	= OMAP4_ENABLE_SHIFT,
 };
 
-static struct clk auxclk2_ck = {
-	.name		= "auxclk2_ck",
+static const struct clksel auxclk1_sel[] = {
+	{ .parent = &auxclk1_src_ck, .rates = div16_1to16_rates },
+	{ .parent = NULL },
+};
+
+static struct clk auxclk1_ck = {
+	.name		= "auxclk1_ck",
+	.parent		= &auxclk1_src_ck,
+	.clksel		= auxclk1_sel,
+	.clksel_reg	= OMAP4_SCRM_AUXCLK1,
+	.clksel_mask	= OMAP4_CLKDIV_MASK,
+	.ops		= &clkops_null,
+	.recalc		= &omap2_clksel_recalc,
+	.round_rate	= &omap2_clksel_round_rate,
+	.set_rate	= &omap2_clksel_set_rate,
+};
+
+static struct clk auxclk2_src_ck = {
+	.name		= "auxclk2_src_ck",
 	.parent		= &sys_clkin_ck,
 	.init		= &omap2_init_clksel_parent,
 	.ops		= &clkops_omap2_dflt,
-	.clksel		= auxclk_sel,
+	.clksel		= auxclk_src_sel,
 	.clksel_reg	= OMAP4_SCRM_AUXCLK2,
 	.clksel_mask	= OMAP4_SRCSELECT_MASK,
 	.recalc		= &omap2_clksel_recalc,
@@ -2820,12 +2874,29 @@ static struct clk auxclk2_ck = {
 	.enable_bit	= OMAP4_ENABLE_SHIFT,
 };
 
-static struct clk auxclk3_ck = {
-	.name		= "auxclk3_ck",
+static const struct clksel auxclk2_sel[] = {
+	{ .parent = &auxclk2_src_ck, .rates = div16_1to16_rates },
+	{ .parent = NULL },
+};
+
+static struct clk auxclk2_ck = {
+	.name		= "auxclk2_ck",
+	.parent		= &auxclk2_src_ck,
+	.clksel		= auxclk2_sel,
+	.clksel_reg	= OMAP4_SCRM_AUXCLK2,
+	.clksel_mask	= OMAP4_CLKDIV_MASK,
+	.ops		= &clkops_null,
+	.recalc		= &omap2_clksel_recalc,
+	.round_rate	= &omap2_clksel_round_rate,
+	.set_rate	= &omap2_clksel_set_rate,
+};
+
+static struct clk auxclk3_src_ck = {
+	.name		= "auxclk3_src_ck",
 	.parent		= &sys_clkin_ck,
 	.init		= &omap2_init_clksel_parent,
 	.ops		= &clkops_omap2_dflt,
-	.clksel		= auxclk_sel,
+	.clksel		= auxclk_src_sel,
 	.clksel_reg	= OMAP4_SCRM_AUXCLK3,
 	.clksel_mask	= OMAP4_SRCSELECT_MASK,
 	.recalc		= &omap2_clksel_recalc,
@@ -2833,12 +2904,29 @@ static struct clk auxclk3_ck = {
 	.enable_bit	= OMAP4_ENABLE_SHIFT,
 };
 
-static struct clk auxclk4_ck = {
-	.name		= "auxclk4_ck",
+static const struct clksel auxclk3_sel[] = {
+	{ .parent = &auxclk3_src_ck, .rates = div16_1to16_rates },
+	{ .parent = NULL },
+};
+
+static struct clk auxclk3_ck = {
+	.name		= "auxclk3_ck",
+	.parent		= &auxclk3_src_ck,
+	.clksel		= auxclk3_sel,
+	.clksel_reg	= OMAP4_SCRM_AUXCLK3,
+	.clksel_mask	= OMAP4_CLKDIV_MASK,
+	.ops		= &clkops_null,
+	.recalc		= &omap2_clksel_recalc,
+	.round_rate	= &omap2_clksel_round_rate,
+	.set_rate	= &omap2_clksel_set_rate,
+};
+
+static struct clk auxclk4_src_ck = {
+	.name		= "auxclk4_src_ck",
 	.parent		= &sys_clkin_ck,
 	.init		= &omap2_init_clksel_parent,
 	.ops		= &clkops_omap2_dflt,
-	.clksel		= auxclk_sel,
+	.clksel		= auxclk_src_sel,
 	.clksel_reg	= OMAP4_SCRM_AUXCLK4,
 	.clksel_mask	= OMAP4_SRCSELECT_MASK,
 	.recalc		= &omap2_clksel_recalc,
@@ -2846,12 +2934,29 @@ static struct clk auxclk4_ck = {
 	.enable_bit	= OMAP4_ENABLE_SHIFT,
 };
 
-static struct clk auxclk5_ck = {
-	.name		= "auxclk5_ck",
+static const struct clksel auxclk4_sel[] = {
+	{ .parent = &auxclk4_src_ck, .rates = div16_1to16_rates },
+	{ .parent = NULL },
+};
+
+static struct clk auxclk4_ck = {
+	.name		= "auxclk4_ck",
+	.parent		= &auxclk4_src_ck,
+	.clksel		= auxclk4_sel,
+	.clksel_reg	= OMAP4_SCRM_AUXCLK4,
+	.clksel_mask	= OMAP4_CLKDIV_MASK,
+	.ops		= &clkops_null,
+	.recalc		= &omap2_clksel_recalc,
+	.round_rate	= &omap2_clksel_round_rate,
+	.set_rate	= &omap2_clksel_set_rate,
+};
+
+static struct clk auxclk5_src_ck = {
+	.name		= "auxclk5_src_ck",
 	.parent		= &sys_clkin_ck,
 	.init		= &omap2_init_clksel_parent,
 	.ops		= &clkops_omap2_dflt,
-	.clksel		= auxclk_sel,
+	.clksel		= auxclk_src_sel,
 	.clksel_reg	= OMAP4_SCRM_AUXCLK5,
 	.clksel_mask	= OMAP4_SRCSELECT_MASK,
 	.recalc		= &omap2_clksel_recalc,
@@ -2859,6 +2964,23 @@ static struct clk auxclk5_ck = {
 	.enable_bit	= OMAP4_ENABLE_SHIFT,
 };
 
+static const struct clksel auxclk5_sel[] = {
+	{ .parent = &auxclk5_src_ck, .rates = div16_1to16_rates },
+	{ .parent = NULL },
+};
+
+static struct clk auxclk5_ck = {
+	.name		= "auxclk5_ck",
+	.parent		= &auxclk5_src_ck,
+	.clksel		= auxclk5_sel,
+	.clksel_reg	= OMAP4_SCRM_AUXCLK5,
+	.clksel_mask	= OMAP4_CLKDIV_MASK,
+	.ops		= &clkops_null,
+	.recalc		= &omap2_clksel_recalc,
+	.round_rate	= &omap2_clksel_round_rate,
+	.set_rate	= &omap2_clksel_set_rate,
+};
+
 static const struct clksel auxclkreq_sel[] = {
 	{ .parent = &auxclk0_ck, .rates = div_1_0_rates },
 	{ .parent = &auxclk1_ck, .rates = div_1_1_rates },
@@ -3150,17 +3272,23 @@ static struct omap_clk omap44xx_clks[] = {
 	CLK(NULL,	"wd_timer3_fck",		&wd_timer3_fck,	CK_443X),
 	CLK(NULL,	"stm_clk_div_ck",		&stm_clk_div_ck,	CK_443X),
 	CLK(NULL,	"trace_clk_div_ck",		&trace_clk_div_ck,	CK_443X),
+	CLK(NULL,	"auxclk0_src_ck",		&auxclk0_src_ck,	CK_443X),
 	CLK(NULL,	"auxclk0_ck",			&auxclk0_ck,	CK_443X),
-	CLK(NULL,	"auxclk1_ck",			&auxclk1_ck,	CK_443X),
-	CLK(NULL,	"auxclk2_ck",			&auxclk2_ck,	CK_443X),
-	CLK(NULL,	"auxclk3_ck",			&auxclk3_ck,	CK_443X),
-	CLK(NULL,	"auxclk4_ck",			&auxclk4_ck,	CK_443X),
-	CLK(NULL,	"auxclk5_ck",			&auxclk5_ck,	CK_443X),
 	CLK(NULL,	"auxclkreq0_ck",		&auxclkreq0_ck,	CK_443X),
+	CLK(NULL,	"auxclk1_src_ck",		&auxclk1_src_ck,	CK_443X),
+	CLK(NULL,	"auxclk1_ck",			&auxclk1_ck,	CK_443X),
 	CLK(NULL,	"auxclkreq1_ck",		&auxclkreq1_ck,	CK_443X),
+	CLK(NULL,	"auxclk2_src_ck",		&auxclk2_src_ck,	CK_443X),
+	CLK(NULL,	"auxclk2_ck",			&auxclk2_ck,	CK_443X),
 	CLK(NULL,	"auxclkreq2_ck",		&auxclkreq2_ck,	CK_443X),
+	CLK(NULL,	"auxclk3_src_ck",		&auxclk3_src_ck,	CK_443X),
+	CLK(NULL,	"auxclk3_ck",			&auxclk3_ck,	CK_443X),
 	CLK(NULL,	"auxclkreq3_ck",		&auxclkreq3_ck,	CK_443X),
+	CLK(NULL,	"auxclk4_src_ck",		&auxclk4_src_ck,	CK_443X),
+	CLK(NULL,	"auxclk4_ck",			&auxclk4_ck,	CK_443X),
 	CLK(NULL,	"auxclkreq4_ck",		&auxclkreq4_ck,	CK_443X),
+	CLK(NULL,	"auxclk5_src_ck",		&auxclk5_src_ck,	CK_443X),
+	CLK(NULL,	"auxclk5_ck",			&auxclk5_ck,	CK_443X),
 	CLK(NULL,	"auxclkreq5_ck",		&auxclkreq5_ck,	CK_443X),
 	CLK(NULL,	"gpmc_ck",			&dummy_ck,	CK_443X),
 	CLK(NULL,	"gpt1_ick",			&dummy_ck,	CK_443X),
-- 
1.6.6.1