OMAP2xxx clock: move osc_clk code into mach-omap2/clkt2xxx_osc.c

Move the osc_clk clock functions from clock2xxx.c to
mach-omap2/clkt2xxx_osc.  This is intended to make the clock code
easier to understand, since all of the functions needed to manage the
osc_clk are now located in their own file, rather than being mixed
with other, unrelated functions.

Clock debugging is also now more finely-grained, since the DEBUG
macro can now be defined for osc_clk clocks alone.  This
should reduce unnecessary console noise when debugging.

Also, if at some future point the mach-omap2/ directory is split
into OMAP2/3/4 variants, this clkt file can be placed in the mach-omap2xxx/
directory, rather than shared with other chip types that don't use this
clock type.

Thanks to Alexander Shishkin <virtuoso@slind.org> for his comments to
improve the patch description.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Alexander Shishkin <virtuoso@slind.org>

1 files changed, 2 insertions, 32 deletions

diff --git a/arch/arm/mach-omap2/clock2xxx.c b/arch/arm/mach-omap2/clock2xxx.c
index 88077e74696..62c3b022a1e 100644
--- a/arch/arm/mach-omap2/clock2xxx.c
+++ b/arch/arm/mach-omap2/clock2xxx.c
@@ -79,31 +79,6 @@ const struct clkops clkops_omap2430_i2chs_wait = {
 	.find_companion = omap2_clk_dflt_find_companion,
 };
 
-static int omap2_enable_osc_ck(struct clk *clk)
-{
-	u32 pcc;
-
-	pcc = __raw_readl(prcm_clksrc_ctrl);
-
-	__raw_writel(pcc & ~OMAP_AUTOEXTCLKMODE_MASK, prcm_clksrc_ctrl);
-
-	return 0;
-}
-
-static void omap2_disable_osc_ck(struct clk *clk)
-{
-	u32 pcc;
-
-	pcc = __raw_readl(prcm_clksrc_ctrl);
-
-	__raw_writel(pcc | OMAP_AUTOEXTCLKMODE_MASK, prcm_clksrc_ctrl);
-}
-
-const struct clkops clkops_oscck = {
-	.enable		= omap2_enable_osc_ck,
-	.disable	= omap2_disable_osc_ck,
-};
-
 #ifdef OLD_CK
 /* Recalculate SYST_CLK */
 static void omap2_sys_clk_recalc(struct clk *clk)
@@ -116,7 +91,7 @@ static void omap2_sys_clk_recalc(struct clk *clk)
 }
 #endif	/* OLD_CK */
 
-static u32 omap2_get_sysclkdiv(void)
+u32 omap2xxx_get_sysclkdiv(void)
 {
 	u32 div;
 
@@ -127,14 +102,9 @@ static u32 omap2_get_sysclkdiv(void)
 	return div;
 }
 
-unsigned long omap2_osc_clk_recalc(struct clk *clk)
-{
-	return omap2xxx_get_apll_clkin() * omap2_get_sysclkdiv();
-}
-
 unsigned long omap2_sys_clk_recalc(struct clk *clk)
 {
-	return clk->parent->rate / omap2_get_sysclkdiv();
+	return clk->parent->rate / omap2xxx_get_sysclkdiv();
 }
 
 /*