From mboxrd@z Thu Jan 1 00:00:00 1970 From: dongas86@gmail.com (Dong Aisheng) Date: Wed, 31 May 2017 14:36:20 +0800 Subject: [PATCH 2/2] timer: imx-tpm: add imx tpm timer support In-Reply-To: <20170525205455.GB9501@mai> References: <1494660575-30465-1-git-send-email-aisheng.dong@nxp.com> <1494660575-30465-2-git-send-email-aisheng.dong@nxp.com> <20170525205455.GB9501@mai> Message-ID: <20170531063620.GB16812@b29396-OptiPlex-7040> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Daniel, On Thu, May 25, 2017 at 10:54:55PM +0200, Daniel Lezcano wrote: > On Sat, May 13, 2017 at 03:29:35PM +0800, Dong Aisheng wrote: > > IMX Timer/PWM Module (TPM) supports both timer and pwm function while > > this patch only adds the timer support. PWM would be added later. > > > > The TPM counter, compare and capture registers are clocked by an > > asynchronous clock that can remain enabled in low power modes. > > > > Cc: Daniel Lezcano > > Cc: Thomas Gleixner > > Cc: Shawn Guo > > Signed-off-by: Anson Huang > > Signed-off-by: Bai Ping > > Signed-off-by: Dong Aisheng > > --- > > [ ... ] > > > + val = __raw_readl(timer_base + TPM_C0SC); > > + val &= ~(TPM_C0SC_MODE_MASK | TPM_C0SC_CHIE); > > + __raw_writel(val, timer_base + TPM_C0SC); > > Hi Dong, > > why are you using __raw_write/__raw_read instead of regular readl/writel? > Sorry for missing the second throught of it. Will change to readl/writel as Arnd pointed out in another mail. Regards Dong Aisheng