From mboxrd@z Thu Jan 1 00:00:00 1970 From: kgene.kim@samsung.com (Kukjin Kim) Date: Wed, 13 Oct 2010 16:55:55 +0900 Subject: [PATCH v2 4/6] ARM: S5P: Add EPLL rate change warning In-Reply-To: <1286883983-27790-1-git-send-email-sw.youn@samsung.com> References: <1286882399-27595-1-git-send-email-sw.youn@samsung.com> <1286883983-27790-1-git-send-email-sw.youn@samsung.com> Message-ID: <002301cb6aac$12a05e10$37e11a30$%kim@samsung.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Seungwhan Youn wrote: > > This patch adds warning about changing EPLL rate to notice that other > driver that controls H/W, which is using EPLL, will has unknown effects > by this EPLL rate change. > > Signed-off-by: Seungwhan Youn > --- > arch/arm/mach-s5p64x0/clock-s5p6440.c | 3 +++ > arch/arm/mach-s5p64x0/clock-s5p6450.c | 3 +++ > arch/arm/mach-s5pc100/clock.c | 3 +++ > arch/arm/mach-s5pv210/clock.c | 3 +++ > 4 files changed, 12 insertions(+), 0 deletions(-) > > diff --git a/arch/arm/mach-s5p64x0/clock-s5p6440.c b/arch/arm/mach- > s5p64x0/clock-s5p6440.c > index 1e3f517..0b539d5 100644 > --- a/arch/arm/mach-s5p64x0/clock-s5p6440.c > +++ b/arch/arm/mach-s5p64x0/clock-s5p6440.c > @@ -79,6 +79,9 @@ static int s5p6440_epll_set_rate(struct clk *clk, unsigned long > rate) > __raw_writel(epll_con, S5P_EPLL_CON); > __raw_writel(epll_con_k, S5P_EPLL_CON_K); > > + printk(KERN_WARNING "EPLL Rate changes from %lu to %lu\n", > + clk->rate, rate); Do we really need KERN_WARNING here? How about just KERN_INFO?...In my opinion, to change EPLL value seems to be nearer 'information' message more than 'warning'. (others, same) Thanks. Best regards, Kgene. -- Kukjin Kim , Senior Engineer, SW Solution Development Team, Samsung Electronics Co., Ltd.