[PATCH 3/3] ARM: OMAP2+: hwmod code: convert missing clockdomain warnings to debug messages

[Paul Walmsley]

The decision was made a few months ago to allow struct omap_hwmod
records and struct clk records to omit clockdomain information if the
clockdomain is not software-controllable.  See for example commit
868c157df9721675c19729eed2c96bac6c3f1d01 ("ARM: OMAP2+: hwmod: remove
prm_clkdm, cm_clkdm; allow hwmods to have no clockdomain").

So convert an existing pr_warning() to a pr_debug() (regarding missing
clockdomains in clocks), and add a pr_debug() for missing hwmod
clockdomains.  It's still useful to enable these messages for
debugging, since missing clockdomains can cause hard-to-debug problems
with power management; see for example commit
6c4a057bffe9823221eab547e11fac181dc18a2b ("ARM: OMAP4: clock data:
Force a DPLL clkdm/pwrdm ON before a relock").

Signed-off-by: Paul Walmsley <paul at pwsan.com>
Cc: Benoît Cousson <b-cousson at ti.com>
---
 arch/arm/mach-omap2/omap_hwmod.c |    8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 80cea5b..e05228a 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -685,8 +685,8 @@ static int _init_main_clk(struct omap_hwmod *oh)
 	}
 
 	if (!oh->_clk->clkdm)
-		pr_warning("omap_hwmod: %s: missing clockdomain for %s.\n",
-			   oh->main_clk, oh->_clk->name);
+		pr_debug("omap_hwmod: %s: missing clockdomain for %s.\n",
+			 oh->main_clk, oh->_clk->name);
 
 	return ret;
 }
@@ -1380,8 +1380,10 @@ static struct omap_hwmod *_lookup(const char *name)
  */
 static int _init_clkdm(struct omap_hwmod *oh)
 {
-	if (!oh->clkdm_name)
+	if (!oh->clkdm_name) {
+		pr_debug("omap_hwmod: %s: missing clockdomain\n", oh->name);
 		return 0;
+	}
 
 	oh->clkdm = clkdm_lookup(oh->clkdm_name);
 	if (!oh->clkdm) {