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From: vinceh@nvidia.com (Vince Hsu)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 06/17] clk: tegra: remove TEGRA_PLL_USE_LOCK for PLLD/PLLD2
Date: Thu, 12 Mar 2015 20:15:07 +0800	[thread overview]
Message-ID: <1426162518-7405-7-git-send-email-vinceh@nvidia.com> (raw)
In-Reply-To: <1426162518-7405-1-git-send-email-vinceh@nvidia.com>

Tegra114 has a HW bug that the PLLD/PLLD2 lock bit cannot be asserted when
the DIS power domain is during up-powergating process but the clamp to this
domain is not removed yet. That causes a timeout and aborts the power
sequence, although the PLLD/PLLD2 has already locked. To remove the false
alarm, we don't use the lock for PLLD/PLLD2. Just wait 1ms and treat the
clocks as locked.

Signed-off-by: Vince Hsu <vinceh@nvidia.com>
---
 drivers/clk/tegra/clk-tegra114.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/clk/tegra/clk-tegra114.c b/drivers/clk/tegra/clk-tegra114.c
index d0766423a5d6..e6a480e0dcb6 100644
--- a/drivers/clk/tegra/clk-tegra114.c
+++ b/drivers/clk/tegra/clk-tegra114.c
@@ -456,8 +456,7 @@ static struct tegra_clk_pll_params pll_d_params = {
 	.lock_delay = 1000,
 	.div_nmp = &pllp_nmp,
 	.freq_table = pll_d_freq_table,
-	.flags = TEGRA_PLL_HAS_CPCON | TEGRA_PLL_SET_LFCON |
-		 TEGRA_PLL_USE_LOCK,
+	.flags = TEGRA_PLL_HAS_CPCON | TEGRA_PLL_SET_LFCON,
 };
 
 static struct tegra_clk_pll_params pll_d2_params = {
@@ -474,8 +473,7 @@ static struct tegra_clk_pll_params pll_d2_params = {
 	.lock_delay = 1000,
 	.div_nmp = &pllp_nmp,
 	.freq_table = pll_d_freq_table,
-	.flags = TEGRA_PLL_HAS_CPCON | TEGRA_PLL_SET_LFCON |
-		 TEGRA_PLL_USE_LOCK,
+	.flags = TEGRA_PLL_HAS_CPCON | TEGRA_PLL_SET_LFCON,
 };
 
 static struct pdiv_map pllu_p[] = {
-- 
2.1.4

  parent reply	other threads:[~2015-03-12 12:15 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-12 12:15 [PATCH v2 00/17] Add generic PM domain support for Tegra SoCs Vince Hsu
2015-03-12 12:15 ` [PATCH v2 01/17] reset: add of_reset_control_get_by_index() Vince Hsu
2015-03-12 15:01   ` Philipp Zabel
2015-03-13  3:04     ` Vince Hsu
2015-03-12 12:15 ` [PATCH v2 02/17] memory: tegra: add mc flush support Vince Hsu
2015-03-12 12:15 ` [PATCH v2 03/17] memory: tegra: add flush operation for Tegra30 memory clients Vince Hsu
2015-03-12 12:15 ` [PATCH v2 04/17] memory: tegra: add flush operation for Tegra114 " Vince Hsu
2015-03-12 12:15 ` [PATCH v2 05/17] memory: tegra: add flush operation for Tegra124 " Vince Hsu
2015-03-12 12:15 ` Vince Hsu [this message]
2015-03-12 12:15 ` [PATCH v2 07/17] soc: tegra: pmc: Add generic PM domain support Vince Hsu
2015-04-06 22:37   ` Kevin Hilman
2015-04-08  8:06     ` Thierry Reding
2015-03-12 12:15 ` [PATCH v2 08/17] ARM: tegra: add PM domain device nodes to Tegra30 DT Vince Hsu
2015-03-12 12:15 ` [PATCH v2 09/17] ARM: tegra: add PM domain device nodes to Tegra114 DT Vince Hsu
2015-03-12 12:15 ` [PATCH v2 10/17] ARM: tegra: add PM domain device nodes to Tegra124 DT Vince Hsu
2015-03-12 12:15 ` [PATCH v2 11/17] ARM: tegra: add GPU power supply to Jetson TK1 DT Vince Hsu
2015-03-12 12:15 ` [PATCH v2 12/17] drm/tegra: dc: remove the power sequence from driver Vince Hsu
2015-03-12 12:15 ` [PATCH v2 13/17] PCI: tegra: " Vince Hsu
2015-03-12 12:15 ` [PATCH v2 14/17] ata: ahci_tegra: remove " Vince Hsu
2015-03-12 12:19   ` Tejun Heo
2015-03-12 12:23     ` Vince Hsu
2015-03-12 12:33       ` Hans de Goede
2015-03-12 12:15 ` [PATCH v2 15/17] drm/tegra: remove GR3D " Vince Hsu
2015-03-12 12:15 ` [PATCH v2 16/17] ARM: tegra: select PM_GENERIC_DOMAINS Vince Hsu
2015-03-12 12:15 ` [PATCH v2 17/17] soc/tegra: remove lagacy powergate APIs Vince Hsu
2015-03-12 12:45   ` Thierry Reding
2015-03-12 13:11     ` Vince Hsu
2015-03-12 16:18     ` Peter De Schrijver

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