RE: [PATCH V7 2/5] pwm: Add i.MX TPM PWM driver support

2019-03-20 Thread Anson Huang
@agner.ch; Leonard Crestez > > ; schnitzelt...@gmail.com; Robin Gong > > ; linux- p...@vger.kernel.org; > > devicet...@vger.kernel.org; linux-arm- ker...@lists.infradead.org; > > linux-kernel@vger.kernel.org; dl-linux-imx > > Subject: Re: [PATCH V7 2/5] pwm: Add i.MX TPM PWM driver s

RE: [PATCH V7 2/5] pwm: Add i.MX TPM PWM driver support

2019-03-20 Thread Anson Huang
linux-kernel@vger.kernel.org; dl-linux-imx > > Subject: Re: [PATCH V7 2/5] pwm: Add i.MX TPM PWM driver support > > Hello Anson, > > On Wed, Mar 20, 2019 at 10:17:50AM +, Anson Huang wrote: > > > On Wed, Mar 20, 2019 at 05:06:21AM +, Anson Huang wrote: >

Re: [PATCH V7 2/5] pwm: Add i.MX TPM PWM driver support

2019-03-20 Thread Uwe Kleine-König
Hello Anson, On Wed, Mar 20, 2019 at 10:17:50AM +, Anson Huang wrote: > > On Wed, Mar 20, 2019 at 05:06:21AM +, Anson Huang wrote: > > > + /* make sure counter is disabled for programming prescale */ > > > + val = readl(tpm->base + PWM_IMX_TPM_SC); > > > + saved_cmod = FIELD_GET(PWM_IMX_TP

RE: [PATCH V7 2/5] pwm: Add i.MX TPM PWM driver support

2019-03-20 Thread Anson Huang
linux-kernel@vger.kernel.org; dl-linux-imx > > Subject: Re: [PATCH V7 2/5] pwm: Add i.MX TPM PWM driver support > > Hello, > > On Wed, Mar 20, 2019 at 05:06:21AM +, Anson Huang wrote: > > i.MX7ULP has TPM(Low Power Timer/Pulse Width Modulation Module) > > insid

Re: [PATCH V7 2/5] pwm: Add i.MX TPM PWM driver support

2019-03-20 Thread Uwe Kleine-König
Hello, On Wed, Mar 20, 2019 at 05:06:21AM +, Anson Huang wrote: > i.MX7ULP has TPM(Low Power Timer/Pulse Width Modulation Module) > inside, it can support multiple PWM channels, all the channels > share same counter and period setting, but each channel can > configure its duty and polarity ind