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Wed, 2 Dec 2020 06:28:04 -0800 Envelope-to: rvisaval@xilinx.com, dshah@xilinx.com, tejasp@xilinx.com, rajanv@xilinx.com, mturquette@baylibre.com, robh+dt@kernel.org, kernel@pengutronix.de, sboyd@kernel.org, devicetree@vger.kernel.org, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, m.tretter@pengutronix.de Received: from [172.30.17.109] (port=36864) by smtp.xilinx.com with esmtp (Exim 4.90) (envelope-from ) id 1kkT6y-0003U6-Cg; Wed, 02 Dec 2020 06:28:04 -0800 Subject: Re: [PATCH 02/12] clk: divider: fix initialization with parent_hw To: Michael Tretter , , , , Stephen Boyd CC: , , , , , , References: <20201116075532.4019252-1-m.tretter@pengutronix.de> <20201116075532.4019252-3-m.tretter@pengutronix.de> From: Michal Simek Message-ID: Date: Wed, 2 Dec 2020 15:28:00 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.5.0 MIME-Version: 1.0 In-Reply-To: <20201116075532.4019252-3-m.tretter@pengutronix.de> Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: 7bit X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 7ddfaa1a-f0b5-4923-ad28-08d896ce7bc7 X-MS-TrafficTypeDiagnostic: MN2PR02MB6128: X-Microsoft-Antispam-PRVS: X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply X-MS-Oob-TLC-OOBClassifiers: OLM:7219; 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X-OriginatorOrg: xilinx.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 02 Dec 2020 14:28:05.6398 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 7ddfaa1a-f0b5-4923-ad28-08d896ce7bc7 X-MS-Exchange-CrossTenant-Id: 657af505-d5df-48d0-8300-c31994686c5c X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=657af505-d5df-48d0-8300-c31994686c5c;Ip=[149.199.62.198];Helo=[xsj-pvapexch01.xlnx.xilinx.com] X-MS-Exchange-CrossTenant-AuthSource: CY1NAM02FT016.eop-nam02.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR02MB6128 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Hi Stephen, On 16. 11. 20 8:55, Michael Tretter wrote: > If a driver registers a divider clock with a parent_hw instead of the > parent_name, the parent_hw is ignored and the clock does not have a > parent. > > Fix this by initializing the parents the same way they are initialized > for clock gates. > > Signed-off-by: Michael Tretter > --- > drivers/clk/clk-divider.c | 9 +++++++-- > 1 file changed, 7 insertions(+), 2 deletions(-) > > diff --git a/drivers/clk/clk-divider.c b/drivers/clk/clk-divider.c > index 8de12cb0c43d..f32157cb4013 100644 > --- a/drivers/clk/clk-divider.c > +++ b/drivers/clk/clk-divider.c > @@ -493,8 +493,13 @@ struct clk_hw *__clk_hw_register_divider(struct device *dev, > else > init.ops = &clk_divider_ops; > init.flags = flags; > - init.parent_names = (parent_name ? &parent_name: NULL); > - init.num_parents = (parent_name ? 1 : 0); > + init.parent_names = parent_name ? &parent_name : NULL; > + init.parent_hws = parent_hw ? &parent_hw : NULL; > + init.parent_data = parent_data; > + if (parent_name || parent_hw || parent_data) > + init.num_parents = 1; > + else > + init.num_parents = 0; > > /* struct clk_divider assignments */ > div->reg = reg; > Can you please review this patch? 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Wed, 2 Dec 2020 14:28:05 +0000 Received: from xsj-pvapexch02.xlnx.xilinx.com (172.19.86.41) by xsj-pvapexch01.xlnx.xilinx.com (172.19.86.40) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1913.5; Wed, 2 Dec 2020 06:28:04 -0800 Received: from smtp.xilinx.com (172.19.127.96) by xsj-pvapexch02.xlnx.xilinx.com (172.19.86.41) with Microsoft SMTP Server id 15.1.1913.5 via Frontend Transport; Wed, 2 Dec 2020 06:28:04 -0800 Received: from [172.30.17.109] (port=36864) by smtp.xilinx.com with esmtp (Exim 4.90) (envelope-from ) id 1kkT6y-0003U6-Cg; Wed, 02 Dec 2020 06:28:04 -0800 Subject: Re: [PATCH 02/12] clk: divider: fix initialization with parent_hw To: Michael Tretter , , , , Stephen Boyd References: <20201116075532.4019252-1-m.tretter@pengutronix.de> <20201116075532.4019252-3-m.tretter@pengutronix.de> From: Michal Simek Message-ID: Date: Wed, 2 Dec 2020 15:28:00 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.5.0 MIME-Version: 1.0 In-Reply-To: <20201116075532.4019252-3-m.tretter@pengutronix.de> Content-Language: en-US X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 7ddfaa1a-f0b5-4923-ad28-08d896ce7bc7 X-MS-TrafficTypeDiagnostic: MN2PR02MB6128: X-Microsoft-Antispam-PRVS: X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply X-MS-Oob-TLC-OOBClassifiers: OLM:7219; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Stephen, On 16. 11. 20 8:55, Michael Tretter wrote: > If a driver registers a divider clock with a parent_hw instead of the > parent_name, the parent_hw is ignored and the clock does not have a > parent. > > Fix this by initializing the parents the same way they are initialized > for clock gates. > > Signed-off-by: Michael Tretter > --- > drivers/clk/clk-divider.c | 9 +++++++-- > 1 file changed, 7 insertions(+), 2 deletions(-) > > diff --git a/drivers/clk/clk-divider.c b/drivers/clk/clk-divider.c > index 8de12cb0c43d..f32157cb4013 100644 > --- a/drivers/clk/clk-divider.c > +++ b/drivers/clk/clk-divider.c > @@ -493,8 +493,13 @@ struct clk_hw *__clk_hw_register_divider(struct device *dev, > else > init.ops = &clk_divider_ops; > init.flags = flags; > - init.parent_names = (parent_name ? &parent_name: NULL); > - init.num_parents = (parent_name ? 1 : 0); > + init.parent_names = parent_name ? &parent_name : NULL; > + init.parent_hws = parent_hw ? &parent_hw : NULL; > + init.parent_data = parent_data; > + if (parent_name || parent_hw || parent_data) > + init.num_parents = 1; > + else > + init.num_parents = 0; > > /* struct clk_divider assignments */ > div->reg = reg; > Can you please review this patch? Thanks, Michal _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel