From: Paul Walmsley <paul@pwsan.com>
To: linux-omap-open-source@linux.omap.com
Subject: [PATCH 23/28] omap2 clock: use standard clk->enable/disable for APLLs
Date: Mon, 20 Aug 2007 03:54:10 -0600 [thread overview]
Message-ID: <20070820095532.240548798@pwsan.com> (raw)
In-Reply-To: 20070820095347.933473149@pwsan.com
[-- Attachment #1: clean-up-apll-enable-disable.patch --]
[-- Type: text/plain, Size: 3433 bytes --]
Now that we're calling the clock-specific enable & disable code, we can
get rid of the special-case code in _omap2_clk_{enable,disable}() for the
APLLs.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
arch/arm/mach-omap2/clock.c | 20 ++++++++------------
arch/arm/mach-omap2/clock.h | 6 ++++++
2 files changed, 14 insertions(+), 12 deletions(-)
Index: linux-omap/arch/arm/mach-omap2/clock.c
Index: linux-omap/arch/arm/mach-omap2/clock.c
===================================================================
--- linux-omap.orig/arch/arm/mach-omap2/clock.c
+++ linux-omap/arch/arm/mach-omap2/clock.c
@@ -212,7 +212,7 @@ static int omap2_wait_clock_ready(void _
/* Enable an APLL if off */
-static void omap2_clk_fixed_enable(struct clk *clk)
+static int omap2_clk_fixed_enable(struct clk *clk)
{
u32 cval, apll_mask;
@@ -221,7 +221,7 @@ static void omap2_clk_fixed_enable(struc
cval = cm_read_mod_reg(PLL_MOD, CM_CLKEN);
if ((cval & apll_mask) == apll_mask)
- return; /* apll already enabled */
+ return 0; /* apll already enabled */
cval &= ~apll_mask;
cval |= apll_mask;
@@ -234,6 +234,12 @@ static void omap2_clk_fixed_enable(struc
omap2_wait_clock_ready(OMAP_CM_REGADDR(PLL_MOD, CM_IDLEST), cval,
clk->name);
+
+ /*
+ * REVISIT: Should we return an error code if omap2_wait_clock_ready()
+ * fails?
+ */
+ return 0;
}
static void omap2_clk_wait_ready(struct clk *clk)
@@ -288,11 +294,6 @@ static int _omap2_clk_enable(struct clk
return -EINVAL;
}
- if (clk->enable_reg == OMAP_CM_REGADDR(PLL_MOD, CM_CLKEN)) {
- omap2_clk_fixed_enable(clk);
- return 0;
- }
-
regval32 = cm_read_reg(clk->enable_reg);
regval32 |= (1 << clk->enable_bit);
cm_write_reg(regval32, clk->enable_reg);
@@ -336,11 +337,6 @@ static void _omap2_clk_disable(struct cl
return;
}
- if (clk->enable_reg == OMAP_CM_REGADDR(PLL_MOD, CM_CLKEN)) {
- omap2_clk_fixed_disable(clk);
- return;
- }
-
regval32 = cm_read_reg(clk->enable_reg);
regval32 &= ~(1 << clk->enable_bit);
cm_write_reg(regval32, clk->enable_reg);
Index: linux-omap/arch/arm/mach-omap2/clock.h
===================================================================
--- linux-omap.orig/arch/arm/mach-omap2/clock.h
+++ linux-omap/arch/arm/mach-omap2/clock.h
@@ -38,6 +38,8 @@ static u32 omap2_clksel_to_divisor(struc
static u32 omap2_divisor_to_clksel(struct clk *clk, u32 div);
static void omap2_dpll_recalc(struct clk *clk);
static void omap2_fixed_divisor_recalc(struct clk *clk);
+static int omap2_clk_fixed_enable(struct clk *clk);
+static void omap2_clk_fixed_disable(struct clk *clk);
static long omap2_clksel_round_rate(struct clk *clk, unsigned long target_rate);
static int omap2_clksel_set_rate(struct clk *clk, unsigned long rate);
static int omap2_reprogram_dpll(struct clk * clk, unsigned long rate);
@@ -647,6 +649,8 @@ static struct clk apll96_ck = {
RATE_FIXED | RATE_PROPAGATES,
.enable_reg = OMAP_CM_REGADDR(PLL_MOD, CM_CLKEN),
.enable_bit = OMAP24XX_EN_96M_PLL_SHIFT,
+ .enable = &omap2_clk_fixed_enable,
+ .disable = &omap2_clk_fixed_disable,
.recalc = &propagate_rate,
};
@@ -658,6 +662,8 @@ static struct clk apll54_ck = {
RATE_FIXED | RATE_PROPAGATES,
.enable_reg = OMAP_CM_REGADDR(PLL_MOD, CM_CLKEN),
.enable_bit = OMAP24XX_EN_54M_PLL_SHIFT,
+ .enable = &omap2_clk_fixed_enable,
+ .disable = &omap2_clk_fixed_disable,
.recalc = &propagate_rate,
};
--
next prev parent reply other threads:[~2007-08-20 9:54 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-20 9:53 [PATCH 00/28] omap2 clock: framework generalization, cleanup Paul Walmsley
2007-08-20 9:53 ` [PATCH 01/28] omap2 clock: dsp_ick parent is dsp_fck, not core_ck Paul Walmsley
2007-08-20 9:53 ` [PATCH 02/28] omap2 clock: generalize initial clock rate setup: recalculate_root_clocks() Paul Walmsley
2007-08-20 9:53 ` [PATCH 03/28] omap2 clock: mark onchip_clks as __initdata Paul Walmsley
2007-08-20 9:53 ` [PATCH 05/28] omap2 clock: rename, add comment to omap2_mpu_recalc() Paul Walmsley
2007-08-20 9:53 ` [PATCH 06/28] omap2 clock: add clksel and clksel_rate data Paul Walmsley
2007-08-20 9:53 ` [PATCH 07/28] omap2 clock: init clksel clock parents to hardware reality at clock init Paul Walmsley
2007-08-20 12:27 ` [PATCH 07/28] omap2 clock: init clksel clock parents to hardwarereality " Woodruff, Richard
2007-08-21 6:49 ` Paul Walmsley
2007-08-20 9:53 ` [PATCH 08/28] omap2 clock: convert omap2_clksel_to_divisor and omap2_divisor_to_clksel to use new clksel struct Paul Walmsley
2007-08-20 9:53 ` [PATCH 09/28] omap2 clock: convert omap2_clksel_round_rate " Paul Walmsley
2007-08-20 9:53 ` [PATCH 10/28] omap2 clock: convert omap2_get_clksel " Paul Walmsley
2007-08-20 9:53 ` [PATCH 11/28] omap2 clock: convert omap2_clksel_get_src_field() " Paul Walmsley
2007-08-20 9:53 ` [PATCH 12/28] omap2 clock: stop using clk->src_offset in omap2_clk_set_rate() Paul Walmsley
2007-08-20 9:54 ` [PATCH 13/28] omap2 clock: stop using clk->src_offset in omap2_clk_set_parent() Paul Walmsley
2007-08-20 9:54 ` [PATCH 14/28] omap2 clock: clean out old code from omap2_clksel_recalc() Paul Walmsley
2007-08-20 9:54 ` [PATCH 15/28] omap2 clock: convert remaining clksel clocks to use omap2_clksel_recalc Paul Walmsley
2007-08-20 9:54 ` [PATCH 16/28] omap2 clock: remove all {src, rate}_offset fields from struct clk Paul Walmsley
2007-08-20 9:54 ` [PATCH 17/28] omap2 clock: use the struct clk round_rate field for clksel rate rounding code Paul Walmsley
2007-08-20 9:54 ` [PATCH 19/28] omap2 clock: drop RATE_CKCTL from all OMAP2 clocks Paul Walmsley
2007-08-20 9:54 ` [PATCH 20/28] omap2 clock: remove *_SEL* clock flags Paul Walmsley
2007-08-20 9:54 ` [PATCH 21/28] omap2 clock: call clock-specific enable/disable functions if present Paul Walmsley
2007-08-20 9:54 ` [PATCH 22/28] omap2 clock: use custom osc_ck enable/disable routines Paul Walmsley
2007-08-20 9:54 ` Paul Walmsley [this message]
2007-08-20 9:54 ` [PATCH 24/28] omap2 clock: replace omap2_get_crystal_rate() with clock-specific recalc code Paul Walmsley
2007-08-20 9:54 ` [PATCH 25/28] omap2 clock: Standardize DPLL rate recalculation with struct dpll_data Paul Walmsley
2007-08-20 9:54 ` [PATCH 27/28] omap2 clock: add three missing clocks: gpmc_fck, sdma_{i, f}ck Paul Walmsley
2007-08-20 9:54 ` [PATCH 28/28] omap2 clock: handle (almost) all clock autoidling via the clock framework Paul Walmsley
2007-08-20 12:55 ` [PATCH 28/28] omap2 clock: handle (almost) all clock autoidling viathe " Woodruff, Richard
2007-08-21 7:04 ` Paul Walmsley
2007-08-21 17:29 ` Woodruff, Richard
2007-08-22 9:49 ` Paul Walmsley
2007-08-22 21:25 ` Woodruff, Richard
2007-08-27 7:39 ` Paul Walmsley
2007-08-30 22:21 ` Woodruff, Richard
2007-08-23 9:21 ` [PATCH 28/28] omap2 clock: handle (almost) all clock autoidlingviathe " Tuukka.Tikkanen
2007-08-27 7:56 ` Paul Walmsley
2007-08-27 14:13 ` Tuukka.Tikkanen
2007-08-20 13:18 ` [PATCH 28/28] omap2 clock: handle (almost) all clock autoidling viathe " Woodruff, Richard
2007-08-20 13:30 ` Igor Stoppa
2007-08-20 13:48 ` [PATCH 28/28] omap2 clock: handle (almost) all clockautoidling " Woodruff, Richard
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