From: Paul Walmsley <paul@pwsan.com>
To: linux-omap-open-source@linux.omap.com
Subject: [PATCH 00/28] omap2 clock: framework generalization, cleanup
Date: Mon, 20 Aug 2007 03:53:47 -0600 [thread overview]
Message-ID: <20070820095347.933473149@pwsan.com> (raw)
Hello,
This set of patches contains some significant changes to the OMAP2 clock
framework. The main goal of these patches is to generalize the framework
enough to be usable for the OMAP3430 clock tree, although in the process
I think the OMAP2 clock code is improved quite a bit - I hope you'll agree.
The major change in this patch set is the rewrite of clksel
clock handling, which:
* enables clksel parent clocks to be updated at clock framework init, from
whatever the bootloader configured,
* properly encodes platform restrictions for particular rates,
* generalizes the clksel code to be useful for OMAP3430 clocks,
* facilitates future improved clock state reporting,
* and improves readability and maintainability.
The clksel patches are patches 6 through 20. A few other notable changes
in this patchset:
* Cleanups/bug fixes: patches 1, 3, 4, 5
* Generalize root clock propagation at clock framework init: patch 2
* Use OMAP clock framework enable/disable fns for osc_ck, APLLs: patches 21,
22, 23
* Recalculate osc_ck and sys_ck via recalculate fns, rather than
omap2_get_crystal_rate(): patch 24
* Generalize DPLL multiplier, divider handling: patches 25
* Generalize clocks enabled at init via ENABLE_ON_INIT clock flag: patch 26
* Generalize clock autoidle configuration: patches 27, 28
The patches were boot-tested on N800. Comments and testing are appreciated.
In particular, any testing on 2430SDP are particularly welcome, since I
don't have one here.
Patches apply cleanly against current git head, and seem to run fine,
but I've been doing most of my testing against 2.6.22-omap1, since my
N800 touchscreen does not work consistently with git head.
These changes increase uncompressed kernel memory footprint by
about 6kB:
text data bss dec hex filename
2877920 147788 85992 3111700 2f7b14 vmlinux.orig
2881092 150908 85992 3117992 2f93a8 vmlinux
diffstat:
arch/arm/mach-omap2/clock.c | 978 +++++++++----------
arch/arm/mach-omap2/clock.h | 1092 +++++++++++++++++-----
arch/arm/plat-omap/clock.c | 20
include/asm-arm/arch-omap/clock.h | 57 -
linux-omap/arch/arm/mach-omap2/board-n800-audio.c | 13
linux-omap/arch/arm/mach-omap2/clock.c | 6
linux-omap/arch/arm/mach-omap2/clock.h | 2
linux-omap/arch/arm/mach-omap2/cm_regbits_24xx.h | 50 +
linux-omap/arch/arm/mach-omap2/pm.c | 63 -
linux-omap/arch/arm/plat-omap/clock.c | 17
linux-omap/include/asm-arm/arch-omap/clock.h | 1
11 files changed, 1492 insertions(+), 807 deletions(-)
My apologies in advance for the double 'Index:' lines in some of the
patches - must be some quilt bug - it seems harmless and I have not
yet had the chance to track it down.
- Paul
--
next reply other threads:[~2007-08-20 9:53 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-20 9:53 Paul Walmsley [this message]
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 ` [PATCH 23/28] omap2 clock: use standard clk->enable/disable for APLLs Paul Walmsley
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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