From: Lucas Stach <l.stach@pengutronix.de>
To: Shawn Guo <shawnguo@kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>,
Fabio Estevam <festevam@gmail.com>,
NXP Linux Team <linux-imx@nxp.com>,
Adam Ford <aford173@gmail.com>,
Frieder Schrempf <frieder.schrempf@kontron.de>,
Marek Vasut <marex@denx.de>, Tim Harvey <tharvey@gateworks.com>,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
kernel@pengutronix.de, patchwork-lst@pengutronix.de
Subject: [PATCH v4 01/18] Revert "soc: imx: gpcv2: move reset assert after requesting domain power up"
Date: Fri, 10 Sep 2021 22:26:23 +0200 [thread overview]
Message-ID: <20210910202640.980366-2-l.stach@pengutronix.de> (raw)
In-Reply-To: <20210910202640.980366-1-l.stach@pengutronix.de>
This reverts commit a77ebdd9f553. It turns out that the VPU domain has no
different requirements, even though the downstream ATF implementation seems
to suggest otherwise. Powering on the domain with the reset asserted works
fine. As the changed sequence has caused sporadic issues with the GPU
domains, just revert the change to go back to the working sequence.
Cc: <stable@vger.kernel.org> # 5.14
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Peng Fan <peng.fan@nxp.com>
---
drivers/soc/imx/gpcv2.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/soc/imx/gpcv2.c b/drivers/soc/imx/gpcv2.c
index 34a9ac1f2b9b..8b7a01773aec 100644
--- a/drivers/soc/imx/gpcv2.c
+++ b/drivers/soc/imx/gpcv2.c
@@ -244,6 +244,8 @@ static int imx_pgc_power_up(struct generic_pm_domain *genpd)
goto out_regulator_disable;
}
+ reset_control_assert(domain->reset);
+
if (domain->bits.pxx) {
/* request the domain to power up */
regmap_update_bits(domain->regmap, GPC_PU_PGC_SW_PUP_REQ,
@@ -266,8 +268,6 @@ static int imx_pgc_power_up(struct generic_pm_domain *genpd)
GPC_PGC_CTRL_PCR);
}
- reset_control_assert(domain->reset);
-
/* delay for reset to propagate */
udelay(5);
--
2.30.2
next prev parent reply other threads:[~2021-09-10 20:26 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-10 20:26 [PATCH v4 00/18] i.MX8MM GPC improvements and BLK_CTRL driver Lucas Stach
2021-09-10 20:26 ` Lucas Stach [this message]
2021-09-10 20:26 ` [PATCH v4 02/18] soc: imx: gpcv2: Turn domain->pgc into bitfield Lucas Stach
2021-09-10 20:26 ` [PATCH v4 03/18] soc: imx: gpcv2: Set both GPC_PGC_nCTRL(GPU_2D|GPU_3D) for MX8MM GPU domain Lucas Stach
2021-09-10 20:26 ` [PATCH v4 04/18] soc: imx: gpcv2: add lockdep annotation Lucas Stach
2021-09-10 20:26 ` [PATCH v4 05/18] soc: imx: gpcv2: add domain option to keep domain clocks enabled Lucas Stach
2021-09-10 20:26 ` [PATCH v4 06/18] soc: imx: gpcv2: keep i.MX8M* bus " Lucas Stach
2021-09-10 20:26 ` [PATCH v4 07/18] soc: imx: gpcv2: support system suspend/resume Lucas Stach
2021-09-10 20:26 ` [PATCH v4 08/18] dt-bindings: soc: add binding for i.MX8MM VPU blk-ctrl Lucas Stach
2021-09-16 20:23 ` Rob Herring
2021-09-10 20:26 ` [PATCH v4 09/18] dt-bindings: power: imx8mm: add defines for VPU blk-ctrl domains Lucas Stach
2021-09-16 20:25 ` Rob Herring
2021-09-10 20:26 ` [PATCH v4 10/18] soc: imx: add i.MX8M blk-ctrl driver Lucas Stach
2021-09-14 15:46 ` Benjamin Gaignard
2021-10-02 1:07 ` Lucas Stach
2021-10-04 14:27 ` Benjamin Gaignard
2021-10-05 10:03 ` Lucas Stach
2021-10-05 12:36 ` Benjamin Gaignard
2021-10-13 12:12 ` Benjamin Gaignard
2021-11-07 21:08 ` Adam Ford
2021-11-08 8:35 ` Lucas Stach
2021-11-08 13:13 ` Adam Ford
2021-09-10 20:26 ` [PATCH v4 11/18] dt-bindings: soc: add binding for i.MX8MM DISP blk-ctrl Lucas Stach
2021-09-16 20:28 ` Rob Herring
2021-09-10 20:26 ` [PATCH v4 12/18] dt-bindings: power: imx8mm: add defines for DISP blk-ctrl domains Lucas Stach
2021-09-16 20:29 ` Rob Herring
2021-09-10 20:26 ` [PATCH v4 13/18] soc: imx: imx8m-blk-ctrl: add DISP blk-ctrl Lucas Stach
2021-09-12 14:40 ` Adam Ford
2021-09-10 20:26 ` [PATCH v4 14/18] arm64: dts: imx8mm: add GPC node Lucas Stach
2021-10-01 23:07 ` Tim Harvey
2021-10-01 23:20 ` Lucas Stach
2021-10-02 0:06 ` Tim Harvey
2021-10-02 0:15 ` Tim Harvey
2021-10-02 0:25 ` Lucas Stach
2021-10-02 2:43 ` Tim Harvey
2021-10-02 12:51 ` Lucas Stach
2021-10-03 17:17 ` Tim Harvey
2021-10-03 19:44 ` Lucas Stach
2021-10-03 21:21 ` Tim Harvey
2021-10-04 7:44 ` Lucas Stach
2021-10-04 7:47 ` Lucas Stach
2021-09-10 20:26 ` [PATCH v4 15/18] arm64: dts: imx8mm: put USB controllers into power-domains Lucas Stach
2021-09-10 20:26 ` [PATCH v4 16/18] arm64: dts: imx8mm: Add GPU nodes for 2D and 3D core Lucas Stach
2021-09-10 20:26 ` [PATCH v4 17/18] arm64: dts: imx8mm: add VPU blk-ctrl Lucas Stach
2021-09-10 20:26 ` [PATCH v4 18/18] arm64: dts: imx8mm: add DISP blk-ctrl Lucas Stach
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