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Thu, 29 Apr 2021 07:00:38 +0000 From: "Peng Fan (OSS)" To: robh+dt@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de Cc: kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, p.zabel@pengutronix.de, l.stach@pengutronix.de, krzk@kernel.org, agx@sigxcpu.org, marex@denx.de, andrew.smirnov@gmail.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, ping.bai@nxp.com, frieder.schrempf@kontron.de, aford173@gmail.com, abel.vesa@nxp.com, Peng Fan Subject: [PATCH 16/16] soc: imx: gpcv2: remove waiting handshake in power up Date: Thu, 29 Apr 2021 15:30:50 +0800 Message-Id: <20210429073050.21039-17-peng.fan@oss.nxp.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210429073050.21039-1-peng.fan@oss.nxp.com> References: <20210429073050.21039-1-peng.fan@oss.nxp.com> Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [119.31.174.71] X-ClientProxiedBy: HK2PR02CA0208.apcprd02.prod.outlook.com (2603:1096:201:20::20) To DB6PR0402MB2760.eurprd04.prod.outlook.com (2603:10a6:4:a1::14) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from linux-1xn6.ap.freescale.net (119.31.174.71) by HK2PR02CA0208.apcprd02.prod.outlook.com (2603:1096:201:20::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4087.29 via Frontend Transport; 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The blk ctl driver will set the bus clk bit and the handshake will finish there. we just add a delay and suppose the handshake will finish after that. Signed-off-by: Peng Fan --- drivers/soc/imx/gpcv2.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/drivers/soc/imx/gpcv2.c b/drivers/soc/imx/gpcv2.c index 49dd137f6b94..04564017bfe9 100644 --- a/drivers/soc/imx/gpcv2.c +++ b/drivers/soc/imx/gpcv2.c @@ -251,14 +251,6 @@ static int imx_pgc_power_up(struct generic_pm_domain *genpd) regmap_update_bits(domain->regmap, GPC_PU_PWRHSK, domain->bits.hskreq, domain->bits.hskreq); - ret = regmap_read_poll_timeout(domain->regmap, GPC_PU_PWRHSK, - reg_val, - (reg_val & domain->bits.hskack), - 0, USEC_PER_MSEC); - if (ret) { - dev_err(domain->dev, "failed to power up ADB400\n"); - goto out_clk_disable; - } } /* Disable reset clocks for all devices in the domain */ -- 2.30.0