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ARM: OMAP2+: Simplify dmtimer clock aliases

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The OMAP dmtimer driver allows you to dynamically configure the functional
clock that drives the timer logic. The dmtimer driver uses the device name and
a "con-id" string to search for the appropriate functional clock.

Currently, we define a clock alias for each functional clock source each timer
supports. Some functional clock sources are common to all of the timers on a
device and so for these clock sources we can use a single alias with a unique
con-id string.

The possible functional clock sources for an OMAP device are a 32kHz clock,
a system (MHz range) clock and (for OMAP2 only) an external clock. By defining
a unique con-id name for each of these (timer_32k_ck, timer_sys_ck and
timer_ext_ck) we can eliminate a lot of the clock aliases for timers. This
reduces code, speeds-up searches and clock initialisation time.

Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Jon Hunter
2012-06-05 12:35:00 -05:00
committed by Tony Lindgren
parent 2b2d352300
commit c59b537d87
5 changed files with 23 additions and 121 deletions
Download Patch File Download Diff File Expand all files Collapse all files

34
arch/arm/mach-omap2/clock44xx_data.c
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@@ -3380,28 +3380,18 @@ static struct omap_clk omap44xx_clks[] = {
CLK("usbhs_omap", "usbhost_ick", &dummy_ck, CK_443X),
CLK("usbhs_omap", "usbtll_fck", &dummy_ck, CK_443X),
CLK("omap_wdt", "ick", &dummy_ck, CK_443X),
CLK("omap_timer.1", "32k_ck", &sys_32k_ck, CK_443X),
CLK("omap_timer.2", "32k_ck", &sys_32k_ck, CK_443X),
CLK("omap_timer.3", "32k_ck", &sys_32k_ck, CK_443X),
CLK("omap_timer.4", "32k_ck", &sys_32k_ck, CK_443X),
CLK("omap_timer.5", "32k_ck", &sys_32k_ck, CK_443X),
CLK("omap_timer.6", "32k_ck", &sys_32k_ck, CK_443X),
CLK("omap_timer.7", "32k_ck", &sys_32k_ck, CK_443X),
CLK("omap_timer.8", "32k_ck", &sys_32k_ck, CK_443X),
CLK("omap_timer.9", "32k_ck", &sys_32k_ck, CK_443X),
CLK("omap_timer.10", "32k_ck", &sys_32k_ck, CK_443X),
CLK("omap_timer.11", "32k_ck", &sys_32k_ck, CK_443X),
CLK("omap_timer.1", "sys_ck", &sys_clkin_ck, CK_443X),
CLK("omap_timer.2", "sys_ck", &sys_clkin_ck, CK_443X),
CLK("omap_timer.3", "sys_ck", &sys_clkin_ck, CK_443X),
CLK("omap_timer.4", "sys_ck", &sys_clkin_ck, CK_443X),
CLK("omap_timer.9", "sys_ck", &sys_clkin_ck, CK_443X),
CLK("omap_timer.10", "sys_ck", &sys_clkin_ck, CK_443X),
CLK("omap_timer.11", "sys_ck", &sys_clkin_ck, CK_443X),
CLK("omap_timer.5", "sys_ck", &syc_clk_div_ck, CK_443X),
CLK("omap_timer.6", "sys_ck", &syc_clk_div_ck, CK_443X),
CLK("omap_timer.7", "sys_ck", &syc_clk_div_ck, CK_443X),
CLK("omap_timer.8", "sys_ck", &syc_clk_div_ck, CK_443X),
CLK(NULL, "timer_32k_ck", &sys_32k_ck, CK_443X),
CLK("omap_timer.1", "timer_sys_ck", &sys_clkin_ck, CK_443X),
CLK("omap_timer.2", "timer_sys_ck", &sys_clkin_ck, CK_443X),
CLK("omap_timer.3", "timer_sys_ck", &sys_clkin_ck, CK_443X),
CLK("omap_timer.4", "timer_sys_ck", &sys_clkin_ck, CK_443X),
CLK("omap_timer.9", "timer_sys_ck", &sys_clkin_ck, CK_443X),
CLK("omap_timer.10", "timer_sys_ck", &sys_clkin_ck, CK_443X),
CLK("omap_timer.11", "timer_sys_ck", &sys_clkin_ck, CK_443X),
CLK("omap_timer.5", "timer_sys_ck", &syc_clk_div_ck, CK_443X),
CLK("omap_timer.6", "timer_sys_ck", &syc_clk_div_ck, CK_443X),
CLK("omap_timer.7", "timer_sys_ck", &syc_clk_div_ck, CK_443X),
CLK("omap_timer.8", "timer_sys_ck", &syc_clk_div_ck, CK_443X),
};
int __init omap4xxx_clk_init(void)