From: Jonathan Cameron <jic23@kernel.org> To: Lee Jones <lee.jones@linaro.org>, Mugunthan V N <mugunthanvnm@ti.com> Cc: linux-iio@vger.kernel.org, Tony Lindgren <tony@atomide.com>, Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Russell King <linux@armlinux.org.uk>, Hartmut Knaack <knaack.h@gmx.de>, Lars-Peter Clausen <lars@metafoo.de>, Peter Meerwald-Stadler <pmeerw@pmeerw.net>, Vignesh R <vigneshr@ti.com>, "Andrew F . Davis" <afd@ti.com>, linux-omap@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Sekhar Nori <nsekhar@ti.com>, Peter Ujfalusi <peter.ujfalusi@ti.com> Subject: Re: [PATCH 1/4] mfd: ti_am335x_tscadc: store physical address Date: Sun, 30 Oct 2016 17:05:47 +0000 [thread overview] Message-ID: <954adfa7-94d9-f785-aeab-6f20c8f4c3b9@kernel.org> (raw) In-Reply-To: <20161026121730.GS8574@dell> On 26/10/16 13:17, Lee Jones wrote: > On Fri, 30 Sep 2016, Mugunthan V N wrote: > >> On Wednesday 28 September 2016 01:10 AM, Lee Jones wrote: >>> On Wed, 21 Sep 2016, Mugunthan V N wrote: >>> >>>> store the physical address of the device in its priv to use it >>>> for DMA addressing in the client drivers. >>>> >>>> Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> >>>> --- >>>> drivers/mfd/ti_am335x_tscadc.c | 1 + >>>> include/linux/mfd/ti_am335x_tscadc.h | 1 + >>>> 2 files changed, 2 insertions(+) >>>> >>>> diff --git a/drivers/mfd/ti_am335x_tscadc.c b/drivers/mfd/ti_am335x_tscadc.c >>>> index c8f027b..0f3fab4 100644 >>>> --- a/drivers/mfd/ti_am335x_tscadc.c >>>> +++ b/drivers/mfd/ti_am335x_tscadc.c >>>> @@ -183,6 +183,7 @@ static int ti_tscadc_probe(struct platform_device *pdev) >>>> tscadc->irq = err; >>>> >>>> res = platform_get_resource(pdev, IORESOURCE_MEM, 0); >>>> + tscadc->tscadc_phys_base = res->start; >>> >>> This is unusual. Can't you use a virt_to_phys() variant instead? >>> >> >> I tried using virt_to_phys(), but its not working for me. >> Also saw many drivers uses like this to get physical address >> ("git grep -n " res->start;" drivers/*"). > > Very well: > > For my own reference: > Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org> > > Let me know how you wish this set to be handled. I'm happy to pick up the whole series. There are some more mfd header changes in patch 2 but as they only add defines, I don't mind that much if I don't an Ack from you on those (btw this got to V3 but as patch 1 didn't change I'll carry your ack forwards). Do you want an immutable branch? Seems unlikely to cause much trouble even if there is a merge issue on all 10ish lines of mfd code in the next merge window. Jonathan >
WARNING: multiple messages have this Message-ID (diff)
From: jic23@kernel.org (Jonathan Cameron) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH 1/4] mfd: ti_am335x_tscadc: store physical address Date: Sun, 30 Oct 2016 17:05:47 +0000 [thread overview] Message-ID: <954adfa7-94d9-f785-aeab-6f20c8f4c3b9@kernel.org> (raw) In-Reply-To: <20161026121730.GS8574@dell> On 26/10/16 13:17, Lee Jones wrote: > On Fri, 30 Sep 2016, Mugunthan V N wrote: > >> On Wednesday 28 September 2016 01:10 AM, Lee Jones wrote: >>> On Wed, 21 Sep 2016, Mugunthan V N wrote: >>> >>>> store the physical address of the device in its priv to use it >>>> for DMA addressing in the client drivers. >>>> >>>> Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> >>>> --- >>>> drivers/mfd/ti_am335x_tscadc.c | 1 + >>>> include/linux/mfd/ti_am335x_tscadc.h | 1 + >>>> 2 files changed, 2 insertions(+) >>>> >>>> diff --git a/drivers/mfd/ti_am335x_tscadc.c b/drivers/mfd/ti_am335x_tscadc.c >>>> index c8f027b..0f3fab4 100644 >>>> --- a/drivers/mfd/ti_am335x_tscadc.c >>>> +++ b/drivers/mfd/ti_am335x_tscadc.c >>>> @@ -183,6 +183,7 @@ static int ti_tscadc_probe(struct platform_device *pdev) >>>> tscadc->irq = err; >>>> >>>> res = platform_get_resource(pdev, IORESOURCE_MEM, 0); >>>> + tscadc->tscadc_phys_base = res->start; >>> >>> This is unusual. Can't you use a virt_to_phys() variant instead? >>> >> >> I tried using virt_to_phys(), but its not working for me. >> Also saw many drivers uses like this to get physical address >> ("git grep -n " res->start;" drivers/*"). > > Very well: > > For my own reference: > Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org> > > Let me know how you wish this set to be handled. I'm happy to pick up the whole series. There are some more mfd header changes in patch 2 but as they only add defines, I don't mind that much if I don't an Ack from you on those (btw this got to V3 but as patch 1 didn't change I'll carry your ack forwards). Do you want an immutable branch? Seems unlikely to cause much trouble even if there is a merge issue on all 10ish lines of mfd code in the next merge window. Jonathan >
next prev parent reply other threads:[~2016-10-30 17:05 UTC|newest] Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-09-21 16:11 [PATCH 0/4] Add DMA support for ti_am335x_adc driver Mugunthan V N 2016-09-21 16:11 ` Mugunthan V N 2016-09-21 16:11 ` Mugunthan V N 2016-09-21 16:11 ` [PATCH 1/4] mfd: ti_am335x_tscadc: store physical address Mugunthan V N 2016-09-21 16:11 ` Mugunthan V N 2016-09-21 16:11 ` Mugunthan V N 2016-09-27 19:40 ` Lee Jones 2016-09-27 19:40 ` Lee Jones 2016-09-27 19:40 ` Lee Jones 2016-09-30 8:43 ` Mugunthan V N 2016-09-30 8:43 ` Mugunthan V N 2016-09-30 8:43 ` Mugunthan V N 2016-10-26 12:17 ` Lee Jones 2016-10-26 12:17 ` Lee Jones 2016-10-26 12:17 ` Lee Jones 2016-10-30 17:05 ` Jonathan Cameron [this message] 2016-10-30 17:05 ` Jonathan Cameron 2016-10-31 8:16 ` Lee Jones 2016-10-31 8:16 ` Lee Jones 2016-10-31 8:16 ` Lee Jones 2016-11-05 17:45 ` Jonathan Cameron 2016-11-05 17:45 ` Jonathan Cameron 2016-11-05 17:45 ` Jonathan Cameron 2016-09-21 16:11 ` [PATCH 2/4] drivers: iio: ti_am335x_adc: add dma support Mugunthan V N 2016-09-21 16:11 ` Mugunthan V N 2016-09-21 16:11 ` Mugunthan V N [not found] ` <20160921161134.6951-3-mugunthanvnm-l0cyMroinI0@public.gmane.org> 2016-09-21 17:44 ` Peter Meerwald-Stadler 2016-09-21 17:44 ` Peter Meerwald-Stadler [not found] ` <alpine.DEB.2.02.1609211936540.12662-jW+XmwGofnusTnJN9+BGXg@public.gmane.org> 2016-09-22 10:37 ` Mugunthan V N 2016-09-22 10:37 ` Mugunthan V N 2016-09-22 6:18 ` Vignesh R 2016-09-22 6:18 ` Vignesh R 2016-09-22 6:18 ` Vignesh R 2016-09-22 10:45 ` Mugunthan V N 2016-09-22 10:45 ` Mugunthan V N 2016-09-22 10:45 ` Mugunthan V N 2016-09-22 11:16 ` Peter Ujfalusi 2016-09-22 11:16 ` Peter Ujfalusi 2016-09-22 11:16 ` Peter Ujfalusi 2016-09-22 7:20 ` Peter Ujfalusi 2016-09-22 7:20 ` Peter Ujfalusi 2016-09-22 7:20 ` Peter Ujfalusi 2016-09-22 10:56 ` Mugunthan V N 2016-09-22 10:56 ` Mugunthan V N 2016-09-22 10:56 ` Mugunthan V N 2016-09-21 16:11 ` [PATCH 3/4] ARM: dts: am33xx: add DMA properties for tscadc Mugunthan V N 2016-09-21 16:11 ` Mugunthan V N 2016-09-21 16:11 ` Mugunthan V N 2016-09-21 16:11 ` [PATCH 4/4] ARM: dts: am4372: " Mugunthan V N 2016-09-21 16:11 ` Mugunthan V N 2016-09-21 16:11 ` Mugunthan V N 2016-09-25 9:41 ` [PATCH 0/4] Add DMA support for ti_am335x_adc driver Jonathan Cameron 2016-09-25 9:41 ` Jonathan Cameron 2016-09-25 9:41 ` Jonathan Cameron 2016-09-29 13:01 ` Mugunthan V N 2016-09-29 13:01 ` Mugunthan V N 2016-09-29 13:01 ` Mugunthan V N 2016-09-30 3:37 ` John Syne 2016-09-30 3:37 ` John Syne 2016-09-30 3:37 ` John Syne
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