[{"id":1767851,"web_url":"http://patchwork.ozlabs.org/comment/1767851/","msgid":"","list_archive_url":null,"date":"2017-09-13T12:29:35","subject":"Re: [PATCH v1 03/10] clk: at91: pmc: Support backup for programmable\n\tclocks","submitter":{"id":71036,"url":"http://patchwork.ozlabs.org/api/people/71036/","name":"Nicolas Ferre","email":"nicolas.ferre@microchip.com"},"content":"On 08/09/2017 at 17:35, Romain Izard wrote:\n> From: Romain Izard \n> \n> Save and restore the System Clock and Programmable Clock register for\n> the backup use case.\n\n\"System Clock\" seems to be handled in another patch.\n\n> Signed-off-by: Romain Izard \n> ---\n> drivers/clk/at91/pmc.c | 5 +++++\n> 1 file changed, 5 insertions(+)\n> \n> diff --git a/drivers/clk/at91/pmc.c b/drivers/clk/at91/pmc.c\n> index 07dc2861ad3f..5421b03553ec 100644\n> --- a/drivers/clk/at91/pmc.c\n> +++ b/drivers/clk/at91/pmc.c\n> @@ -66,6 +66,7 @@ static struct\n> \tu32 pcr[PMC_MAX_IDS];\n> \tu32 audio_pll0;\n> \tu32 audio_pll1;\n> +\tu32 pckr[3];\n\nSome products have different numbers of PCK (only 2 on at91sam9x5 for\ninstance)...\n\n> } pmc_cache;\n> \n> void pmc_register_id(u8 id)\n> @@ -103,6 +104,8 @@ static int pmc_suspend(void)\n> \t\tregmap_read(pmcreg, AT91_PMC_PCR,\n> \t\t\t &pmc_cache.pcr[registered_ids[i]]);\n> \t}\n> +\tfor (i = 0; i < 3; i++)\n\nAnd it might be a good practice to have this constant value in a #define.\nWe have \"#define PROG_ID_MAX 7\" defined in\ndrivers/clk/at91/clk-programmable.c.\n\nRegards,\n\n\n> +\t\tregmap_read(pmcreg, AT91_PMC_PCKR(i), &pmc_cache.pckr[i]);\n> \n> \treturn 0;\n> }\n> @@ -143,6 +146,8 @@ static void pmc_resume(void)\n> \t\t\t pmc_cache.pcr[registered_ids[i]] |\n> \t\t\t AT91_PMC_PCR_CMD);\n> \t}\n> +\tfor (i = 0; i < 3; i++)\n> +\t\tregmap_write(pmcreg, AT91_PMC_PCKR(i), pmc_cache.pckr[i]);\n> \n> \tif (pmc_cache.uckr & AT91_PMC_UPLLEN)\n> \t\tmask |= AT91_PMC_LOCKU;\n>","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":"ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; helo=vger.kernel.org;\n\tenvelope-from=linux-pwm-owner@vger.kernel.org;\n\treceiver=)","Received":["from vger.kernel.org (vger.kernel.org [209.132.180.67])\n\tby ozlabs.org (Postfix) with ESMTP id 3xsgwB34BKz9sNr\n\tfor ;\n\tWed, 13 Sep 2017 22:29:46 +1000 (AEST)","(majordomo@vger.kernel.org) by vger.kernel.org via listexpand\n\tid S1752391AbdIMM3b (ORCPT );\n\tWed, 13 Sep 2017 08:29:31 -0400","from esa2.microchip.iphmx.com ([68.232.149.84]:63295 \"EHLO\n\tesa2.microchip.iphmx.com\" rhost-flags-OK-OK-OK-OK) by vger.kernel.org\n\twith ESMTP id S1752371AbdIMM31 (ORCPT\n\t); Wed, 13 Sep 2017 08:29:27 -0400","from smtpout.microchip.com (HELO email.microchip.com)\n\t([198.175.253.82])\n\tby esa2.microchip.iphmx.com with ESMTP/TLS/DHE-RSA-AES256-SHA;\n\t13 Sep 2017 05:28:29 -0700","from [10.159.245.112] (10.10.76.4) by chn-sv-exch07.mchp-main.com\n\t(10.10.76.108) with Microsoft SMTP Server id 14.3.352.0;\n\tWed, 13 Sep 2017 05:28:28 -0700"],"X-IronPort-AV":"E=Sophos;i=\"5.42,387,1500966000\"; d=\"scan'208\";a=\"6957384\"","Subject":"Re: [PATCH v1 03/10] clk: at91: pmc: Support backup for programmable\n\tclocks","To":"Romain Izard ,\n\tBoris Brezillon ,\n\tMichael Turquette ,\n\tStephen Boyd ,\n\tLudovic Desroches ,\n\tJonathan Cameron , Wenyou Yang ,\n\tJosh Wu ,\n\tDavid Woodhouse ,\n\tBrian Norris ,\n\tMarek Vasut ,\n\tCyrille Pitchen ,\n\tThierry Reding ,\n\tRichard Genoud ,\n\tGreg Kroah-Hartman ,\n\tAlan Stern ,\n\tAlexandre Belloni ","CC":", ,\n\t, ,\n\t, ,\n\t, ,\n\tRomain Izard ","References":"<20170908153604.28383-1-romain.izard.pro@gmail.com>\n\t<20170908153604.28383-4-romain.izard.pro@gmail.com>","From":"Nicolas Ferre ","Organization":"microchip","Message-ID":"","Date":"Wed, 13 Sep 2017 14:29:35 +0200","User-Agent":"Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101\n\tThunderbird/52.2.1","MIME-Version":"1.0","In-Reply-To":"<20170908153604.28383-4-romain.izard.pro@gmail.com>","Content-Type":"text/plain; charset=\"utf-8\"","Content-Language":"en-US","Content-Transfer-Encoding":"7bit","Sender":"linux-pwm-owner@vger.kernel.org","Precedence":"bulk","List-ID":"","X-Mailing-List":"linux-pwm@vger.kernel.org"}},{"id":1768029,"web_url":"http://patchwork.ozlabs.org/comment/1768029/","msgid":"<20170913170310.grfv7j5xvh7chjdo@piout.net>","list_archive_url":null,"date":"2017-09-13T17:03:10","subject":"Re: [PATCH v1 03/10] clk: at91: pmc: Support backup for programmable\n\tclocks","submitter":{"id":26276,"url":"http://patchwork.ozlabs.org/api/people/26276/","name":"Alexandre Belloni","email":"alexandre.belloni@free-electrons.com"},"content":"On 13/09/2017 at 14:29:35 +0200, Nicolas Ferre wrote:\n> On 08/09/2017 at 17:35, Romain Izard wrote:\n> > From: Romain Izard \n> > \n> > Save and restore the System Clock and Programmable Clock register for\n> > the backup use case.\n> \n> \"System Clock\" seems to be handled in another patch.\n> \n> > Signed-off-by: Romain Izard \n> > ---\n> > drivers/clk/at91/pmc.c | 5 +++++\n> > 1 file changed, 5 insertions(+)\n> > \n> > diff --git a/drivers/clk/at91/pmc.c b/drivers/clk/at91/pmc.c\n> > index 07dc2861ad3f..5421b03553ec 100644\n> > --- a/drivers/clk/at91/pmc.c\n> > +++ b/drivers/clk/at91/pmc.c\n> > @@ -66,6 +66,7 @@ static struct\n> > \tu32 pcr[PMC_MAX_IDS];\n> > \tu32 audio_pll0;\n> > \tu32 audio_pll1;\n> > +\tu32 pckr[3];\n> \n> Some products have different numbers of PCK (only 2 on at91sam9x5 for\n> instance)...\n> \n\nMy opinion is that it will be time to change that when multiple SoCs\nwill need to save their registers.","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":"ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; helo=vger.kernel.org;\n\tenvelope-from=linux-pwm-owner@vger.kernel.org;\n\treceiver=)","Received":["from vger.kernel.org (vger.kernel.org [209.132.180.67])\n\tby ozlabs.org (Postfix) with ESMTP id 3xsp0D3yrvz9rxl\n\tfor ;\n\tThu, 14 Sep 2017 03:03:40 +1000 (AEST)","(majordomo@vger.kernel.org) by vger.kernel.org via listexpand\n\tid S1751546AbdIMRDZ (ORCPT );\n\tWed, 13 Sep 2017 13:03:25 -0400","from mail.free-electrons.com ([62.4.15.54]:50351 \"EHLO\n\tmail.free-electrons.com\" rhost-flags-OK-OK-OK-OK) by vger.kernel.org\n\twith ESMTP id S1751458AbdIMRDT (ORCPT\n\t); Wed, 13 Sep 2017 13:03:19 -0400","by mail.free-electrons.com (Postfix, from userid 110)\n\tid 5F2012097F; Wed, 13 Sep 2017 19:03:17 +0200 (CEST)","from localhost (unknown [12.145.98.253])\n\tby mail.free-electrons.com (Postfix) with ESMTPSA id ADA03208E5;\n\tWed, 13 Sep 2017 19:03:16 +0200 (CEST)"],"X-Spam-Checker-Version":"SpamAssassin 3.4.0 (2014-02-07) on\n\tmail.free-electrons.com","X-Spam-Level":"","X-Spam-Status":"No, score=-1.0 required=5.0 tests=ALL_TRUSTED,SHORTCIRCUIT,\n\tURIBL_BLOCKED shortcircuit=ham autolearn=disabled version=3.4.0","Date":"Wed, 13 Sep 2017 19:03:10 +0200","From":"Alexandre Belloni ","To":"Nicolas Ferre ","Cc":"Romain Izard ,\n\tBoris Brezillon ,\n\tMichael Turquette ,\n\tStephen Boyd ,\n\tLudovic Desroches ,\n\tJonathan Cameron , Wenyou Yang ,\n\tJosh Wu ,\n\tDavid Woodhouse ,\n\tBrian Norris ,\n\tMarek Vasut ,\n\tCyrille Pitchen ,\n\tThierry Reding ,\n\tRichard Genoud ,\n\tGreg Kroah-Hartman ,\n\tAlan Stern ,\n\tlinux-clk@vger.kernel.org, linux-kernel@vger.kernel.org,\n\tlinux-iio@vger.kernel.org, linux-mtd@lists.infradead.org,\n\tlinux-pwm@vger.kernel.org, linux-serial@vger.kernel.org,\n\tlinux-usb@vger.kernel.org, linux-arm-kernel@lists.infradead.org,\n\tRomain Izard ","Subject":"Re: [PATCH v1 03/10] clk: at91: pmc: Support backup for programmable\n\tclocks","Message-ID":"<20170913170310.grfv7j5xvh7chjdo@piout.net>","References":"<20170908153604.28383-1-romain.izard.pro@gmail.com>\n\t<20170908153604.28383-4-romain.izard.pro@gmail.com>\n\t","MIME-Version":"1.0","Content-Type":"text/plain; charset=us-ascii","Content-Disposition":"inline","In-Reply-To":"","User-Agent":"NeoMutt/20170609 (1.8.3)","Sender":"linux-pwm-owner@vger.kernel.org","Precedence":"bulk","List-ID":"","X-Mailing-List":"linux-pwm@vger.kernel.org"}},{"id":1768380,"web_url":"http://patchwork.ozlabs.org/comment/1768380/","msgid":"","list_archive_url":null,"date":"2017-09-14T07:41:36","subject":"Re: [PATCH v1 03/10] clk: at91: pmc: Support backup for\n\tprogrammable clocks","submitter":{"id":68075,"url":"http://patchwork.ozlabs.org/api/people/68075/","name":"romain izard","email":"romain.izard@mobile-devices.fr"},"content":"2017-09-13 19:03 GMT+02:00 Alexandre Belloni\n:\n> On 13/09/2017 at 14:29:35 +0200, Nicolas Ferre wrote:\n>> On 08/09/2017 at 17:35, Romain Izard wrote:\n>> > From: Romain Izard \n>> >\n>> > Save and restore the System Clock and Programmable Clock register for\n>> > the backup use case.\n>>\n>> \"System Clock\" seems to be handled in another patch.\n>>\n>> > Signed-off-by: Romain Izard \n>> > ---\n>> > drivers/clk/at91/pmc.c | 5 +++++\n>> > 1 file changed, 5 insertions(+)\n>> >\n>> > diff --git a/drivers/clk/at91/pmc.c b/drivers/clk/at91/pmc.c\n>> > index 07dc2861ad3f..5421b03553ec 100644\n>> > --- a/drivers/clk/at91/pmc.c\n>> > +++ b/drivers/clk/at91/pmc.c\n>> > @@ -66,6 +66,7 @@ static struct\n>> > u32 pcr[PMC_MAX_IDS];\n>> > u32 audio_pll0;\n>> > u32 audio_pll1;\n>> > + u32 pckr[3];\n>>\n>> Some products have different numbers of PCK (only 2 on at91sam9x5 for\n>> instance)...\n>>\n>\n> My opinion is that it will be time to change that when multiple SoCs will\n> need to save their registers.\n>\nFor the next version, I'll add a #define. But as this code requires a\ndevice tree node with the compatible string \"atmel,sama5d2-pmc\", I believe\nthat we can ignore other chips for now.","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":["ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; helo=vger.kernel.org;\n\tenvelope-from=linux-pwm-owner@vger.kernel.org;\n\treceiver=)","ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (1024-bit key;\n\tsecure) header.d=mobile-devices.fr header.i=@mobile-devices.fr\n\theader.b=\"LH7b/oAY\"; dkim-atps=neutral"],"Received":["from vger.kernel.org (vger.kernel.org [209.132.180.67])\n\tby ozlabs.org (Postfix) with ESMTP id 3xt9Tm0vtBz9t1t\n\tfor ;\n\tThu, 14 Sep 2017 17:42:04 +1000 (AEST)","(majordomo@vger.kernel.org) by vger.kernel.org via listexpand\n\tid S1751457AbdINHmC (ORCPT );\n\tThu, 14 Sep 2017 03:42:02 -0400","from mail-qk0-f175.google.com ([209.85.220.175]:45202 \"EHLO\n\tmail-qk0-f175.google.com\" rhost-flags-OK-OK-OK-OK) by vger.kernel.org\n\twith ESMTP id S1751423AbdINHl6 (ORCPT\n\t); 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charset=\"UTF-8\"","Sender":"linux-pwm-owner@vger.kernel.org","Precedence":"bulk","List-ID":"","X-Mailing-List":"linux-pwm@vger.kernel.org"}},{"id":1768466,"web_url":"http://patchwork.ozlabs.org/comment/1768466/","msgid":"","list_archive_url":null,"date":"2017-09-14T09:38:45","subject":"Re: [PATCH v1 03/10] clk: at91: pmc: Support backup for programmable\n\tclocks","submitter":{"id":71036,"url":"http://patchwork.ozlabs.org/api/people/71036/","name":"Nicolas Ferre","email":"nicolas.ferre@microchip.com"},"content":"On 14/09/2017 at 09:41, romain izard wrote:\n> 2017-09-13 19:03 GMT+02:00 Alexandre Belloni\n> :\n>> On 13/09/2017 at 14:29:35 +0200, Nicolas Ferre wrote:\n>>> On 08/09/2017 at 17:35, Romain Izard wrote:\n>>>> From: Romain Izard \n>>>>\n>>>> Save and restore the System Clock and Programmable Clock register for\n>>>> the backup use case.\n>>>\n>>> \"System Clock\" seems to be handled in another patch.\n>>>\n>>>> Signed-off-by: Romain Izard \n>>>> ---\n>>>> drivers/clk/at91/pmc.c | 5 +++++\n>>>> 1 file changed, 5 insertions(+)\n>>>>\n>>>> diff --git a/drivers/clk/at91/pmc.c b/drivers/clk/at91/pmc.c\n>>>> index 07dc2861ad3f..5421b03553ec 100644\n>>>> --- a/drivers/clk/at91/pmc.c\n>>>> +++ b/drivers/clk/at91/pmc.c\n>>>> @@ -66,6 +66,7 @@ static struct\n>>>> u32 pcr[PMC_MAX_IDS];\n>>>> u32 audio_pll0;\n>>>> u32 audio_pll1;\n>>>> + u32 pckr[3];\n>>>\n>>> Some products have different numbers of PCK (only 2 on at91sam9x5 for\n>>> instance)...\n>>>\n>>\n>> My opinion is that it will be time to change that when multiple SoCs will\n>> need to save their registers.\n>>\n> For the next version, I'll add a #define. But as this code requires a\n> device tree node with the compatible string \"atmel,sama5d2-pmc\", I believe\n> that we can ignore other chips for now.\n\nFair enough, let's go for this.\n\nBye,","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":"ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; helo=vger.kernel.org;\n\tenvelope-from=linux-pwm-owner@vger.kernel.org;\n\treceiver=)","Received":["from vger.kernel.org (vger.kernel.org [209.132.180.67])\n\tby ozlabs.org (Postfix) with ESMTP id 3xtD4331dFz9s06\n\tfor ;\n\tThu, 14 Sep 2017 19:38:27 +1000 (AEST)","(majordomo@vger.kernel.org) by vger.kernel.org via listexpand\n\tid S1751673AbdINJi0 (ORCPT );\n\tThu, 14 Sep 2017 05:38:26 -0400","from esa5.microchip.iphmx.com ([216.71.150.166]:34753 \"EHLO\n\tesa5.microchip.iphmx.com\" rhost-flags-OK-OK-OK-OK) by vger.kernel.org\n\twith ESMTP id S1751638AbdINJiY (ORCPT\n\t); Thu, 14 Sep 2017 05:38:24 -0400","from smtpout.microchip.com (HELO email.microchip.com)\n\t([198.175.253.82])\n\tby esa5.microchip.iphmx.com with ESMTP/TLS/DHE-RSA-AES256-SHA;\n\t14 Sep 2017 02:37:39 -0700","from [10.159.245.112] (10.10.76.4) by chn-sv-exch06.mchp-main.com\n\t(10.10.76.107) with Microsoft SMTP Server id 14.3.352.0;\n\tThu, 14 Sep 2017 02:37:37 -0700"],"X-IronPort-AV":"E=Sophos;i=\"5.42,392,1500966000\"; d=\"scan'208\";a=\"4701090\"","Subject":"Re: [PATCH v1 03/10] clk: at91: pmc: Support backup for programmable\n\tclocks","To":"romain izard ,\n\tAlexandre Belloni ","CC":"Boris Brezillon ,\n\tMichael Turquette ,\n\tStephen Boyd ,\n\tLudovic Desroches ,\n\tJonathan Cameron , Wenyou Yang ,\n\tJosh Wu ,\n\tDavid Woodhouse ,\n\tBrian Norris ,\n\tMarek Vasut ,\n\tCyrille Pitchen ,\n\tThierry Reding ,\n\tRichard Genoud ,\n\tGreg Kroah-Hartman ,\n\tAlan Stern ,\n\t, LKML ,\n\t, linux-mtd ,\n\t, ,\n\t,\n\tlinux-arm-kernel ","References":"<20170908153604.28383-1-romain.izard.pro@gmail.com>\n\t<20170908153604.28383-4-romain.izard.pro@gmail.com>\n\t\n\t<20170913170310.grfv7j5xvh7chjdo@piout.net>\n\t","From":"Nicolas Ferre ","Organization":"microchip","Message-ID":"","Date":"Thu, 14 Sep 2017 11:38:45 +0200","User-Agent":"Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101\n\tThunderbird/52.2.1","MIME-Version":"1.0","In-Reply-To":"","Content-Type":"text/plain; charset=\"utf-8\"","Content-Language":"en-US","Content-Transfer-Encoding":"7bit","Sender":"linux-pwm-owner@vger.kernel.org","Precedence":"bulk","List-ID":"","X-Mailing-List":"linux-pwm@vger.kernel.org"}}]