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From: Peng Fan <peng.fan@nxp.com>
To: "sboyd@kernel.org" <sboyd@kernel.org>,
	"shawnguo@kernel.org" <shawnguo@kernel.org>,
	"s.hauer@pengutronix.de" <s.hauer@pengutronix.de>,
	"festevam@gmail.com" <festevam@gmail.com>,
	Abel Vesa <abel.vesa@nxp.com>
Cc: "kernel@pengutronix.de" <kernel@pengutronix.de>,
	dl-linux-imx <linux-imx@nxp.com>,
	Aisheng Dong <aisheng.dong@nxp.com>,
	"linux-clk@vger.kernel.org" <linux-clk@vger.kernel.org>,
	"linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Leonard Crestez <leonard.crestez@nxp.com>,
	Alice Guo <alice.guo@nxp.com>, Peng Fan <peng.fan@nxp.com>,
	Will Deacon <will@kernel.org>
Subject: [PATCH 1/2] clk: imx: pll14xx: use writel_relaxed
Date: Wed, 13 Nov 2019 07:24:48 +0000	[thread overview]
Message-ID: <1573629763-18389-2-git-send-email-peng.fan@nxp.com> (raw)
In-Reply-To: <1573629763-18389-1-git-send-email-peng.fan@nxp.com>

From: Peng Fan <peng.fan@nxp.com>

It not make sense to use writel, use relaxed variant.

Cc: Will Deacon <will@kernel.org>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 drivers/clk/imx/clk-pll14xx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/imx/clk-pll14xx.c b/drivers/clk/imx/clk-pll14xx.c
index 5682fce9f5e5..e34813904023 100644
--- a/drivers/clk/imx/clk-pll14xx.c
+++ b/drivers/clk/imx/clk-pll14xx.c
@@ -199,7 +199,7 @@ static int clk_pll1416x_set_rate(struct clk_hw *hw, unsigned long drate,
 
 	/* Enable BYPASS */
 	tmp |= BYPASS_MASK;
-	writel(tmp, pll->base);
+	writel_relaxed(tmp, pll->base);
 
 	div_val = (rate->mdiv << MDIV_SHIFT) | (rate->pdiv << PDIV_SHIFT) |
 		(rate->sdiv << SDIV_SHIFT);
-- 
2.16.4


WARNING: multiple messages have this Message-ID (diff)
From: Peng Fan <peng.fan@nxp.com>
To: "sboyd@kernel.org" <sboyd@kernel.org>,
	"shawnguo@kernel.org" <shawnguo@kernel.org>,
	"s.hauer@pengutronix.de" <s.hauer@pengutronix.de>,
	"festevam@gmail.com" <festevam@gmail.com>,
	Abel Vesa <abel.vesa@nxp.com>
Cc: Aisheng Dong <aisheng.dong@nxp.com>, Peng Fan <peng.fan@nxp.com>,
	Alice Guo <alice.guo@nxp.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	dl-linux-imx <linux-imx@nxp.com>,
	"kernel@pengutronix.de" <kernel@pengutronix.de>,
	Leonard Crestez <leonard.crestez@nxp.com>,
	Will Deacon <will@kernel.org>,
	"linux-clk@vger.kernel.org" <linux-clk@vger.kernel.org>,
	"linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>
Subject: [PATCH 1/2] clk: imx: pll14xx: use writel_relaxed
Date: Wed, 13 Nov 2019 07:24:48 +0000	[thread overview]
Message-ID: <1573629763-18389-2-git-send-email-peng.fan@nxp.com> (raw)
In-Reply-To: <1573629763-18389-1-git-send-email-peng.fan@nxp.com>

From: Peng Fan <peng.fan@nxp.com>

It not make sense to use writel, use relaxed variant.

Cc: Will Deacon <will@kernel.org>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 drivers/clk/imx/clk-pll14xx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/imx/clk-pll14xx.c b/drivers/clk/imx/clk-pll14xx.c
index 5682fce9f5e5..e34813904023 100644
--- a/drivers/clk/imx/clk-pll14xx.c
+++ b/drivers/clk/imx/clk-pll14xx.c
@@ -199,7 +199,7 @@ static int clk_pll1416x_set_rate(struct clk_hw *hw, unsigned long drate,
 
 	/* Enable BYPASS */
 	tmp |= BYPASS_MASK;
-	writel(tmp, pll->base);
+	writel_relaxed(tmp, pll->base);
 
 	div_val = (rate->mdiv << MDIV_SHIFT) | (rate->pdiv << PDIV_SHIFT) |
 		(rate->sdiv << SDIV_SHIFT);
-- 
2.16.4


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2019-11-13  7:24 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-13  7:24 [PATCH 0/2] clk: imx: pll14xx: io relaxed fix Peng Fan
2019-11-13  7:24 ` Peng Fan
2019-11-13  7:24 ` Peng Fan [this message]
2019-11-13  7:24   ` [PATCH 1/2] clk: imx: pll14xx: use writel_relaxed Peng Fan
2019-11-13 11:10   ` Daniel Baluta
2019-11-13 11:10     ` Daniel Baluta
2019-11-13 12:15     ` Peng Fan
2019-11-13 12:15       ` Peng Fan
2019-11-13 12:35       ` Daniel Baluta
2019-11-13 12:35         ` Daniel Baluta
2019-11-13  7:24 ` [PATCH 2/2] clk: imx: pll14xx: use readl to force write completed Peng Fan
2019-11-13  7:24   ` Peng Fan

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