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From: JC Kuo <jckuo@nvidia.com>
To: <gregkh@linuxfoundation.org>, <thierry.reding@gmail.com>,
	<jonathanh@nvidia.com>, <pdeschrijver@nvidia.com>,
	<afrid@nvidia.com>
Cc: <linux-tegra@vger.kernel.org>, <linux-usb@vger.kernel.org>,
	<devicetree@vger.kernel.org>, <nkristam@nvidia.com>,
	<skomatineni@nvidia.com>, JC Kuo <jckuo@nvidia.com>
Subject: [PATCH 2/8] clk: tegra: don't enable PLLE HW sequencer at init
Date: Fri, 14 Jun 2019 15:46:50 +0800	[thread overview]
Message-ID: <20190614074652.21960-3-jckuo@nvidia.com> (raw)
In-Reply-To: <20190614074652.21960-1-jckuo@nvidia.com>

PLLE hardware power sequencer references PEX/SATA UPHY PLL hardware
power sequencers' output to enable/disable PLLE. PLLE hardware power
sequencer has to be enabled only after PEX/SATA UPHY PLL's sequencers
are enabled.

Signed-off-by: JC Kuo <jckuo@nvidia.com>
---
 drivers/clk/tegra/clk-pll.c | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/drivers/clk/tegra/clk-pll.c b/drivers/clk/tegra/clk-pll.c
index 1583f5fc992f..e6de65987fd2 100644
--- a/drivers/clk/tegra/clk-pll.c
+++ b/drivers/clk/tegra/clk-pll.c
@@ -2469,18 +2469,6 @@ static int clk_plle_tegra210_enable(struct clk_hw *hw)
 	pll_writel(val, PLLE_SS_CTRL, pll);
 	udelay(1);
 
-	val = pll_readl_misc(pll);
-	val &= ~PLLE_MISC_IDDQ_SW_CTRL;
-	pll_writel_misc(val, pll);
-
-	val = pll_readl(pll->params->aux_reg, pll);
-	val |= (PLLE_AUX_USE_LOCKDET | PLLE_AUX_SS_SEQ_INCLUDE);
-	val &= ~(PLLE_AUX_ENABLE_SWCTL | PLLE_AUX_SS_SWCTL);
-	pll_writel(val, pll->params->aux_reg, pll);
-	udelay(1);
-	val |= PLLE_AUX_SEQ_ENABLE;
-	pll_writel(val, pll->params->aux_reg, pll);
-
 out:
 	if (pll->lock)
 		spin_unlock_irqrestore(pll->lock, flags);
-- 
2.17.1


  parent reply	other threads:[~2019-06-14  7:47 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-14  7:46 [PATCH 0/8] Tegra XHCI controller ELPG support JC Kuo
2019-06-14  7:46 ` [PATCH 1/8] clk: tegra: Add PLLE HW power sequencer control JC Kuo
2019-07-04 12:16   ` Jon Hunter
2019-09-05  6:26     ` JC Kuo
2019-06-14  7:46 ` JC Kuo [this message]
2019-07-04 12:22   ` [PATCH 2/8] clk: tegra: don't enable PLLE HW sequencer at init Jon Hunter
2019-07-05  3:45     ` JC Kuo
2019-06-14  7:46 ` [PATCH 3/8] phy: tegra: xusb: t210: rearrange UPHY init JC Kuo
2019-07-04 13:32   ` Jon Hunter
2019-07-05  6:48     ` JC Kuo
2019-07-08  7:55       ` Peter De Schrijver
2019-06-14  7:46 ` [PATCH 4/8] phy: tegra: xusb: add sleepwalk and suspend/resume JC Kuo
2019-07-04 13:40   ` Jon Hunter

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