From: Valmantas Paliksa <geraldogabriel@gmail.com>
To: linux-rockchip@lists.infradead.org
Cc: "Shawn Lin" <shawn.lin@rock-chips.com>,
"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
"Krzysztof Wilczyński" <kw@linux.com>,
"Manivannan Sadhasivam" <mani@kernel.org>,
"Rob Herring" <robh@kernel.org>,
"Bjorn Helgaas" <bhelgaas@google.com>,
"Heiko Stuebner" <heiko@sntech.de>,
"Vinod Koul" <vkoul@kernel.org>,
"Kishon Vijay Abraham I" <kishon@kernel.org>,
"Rick wertenbroek" <rick.wertenbroek@gmail.com>,
"Neil Armstrong" <neil.armstrong@linaro.org>,
"Valmantas Paliksa" <walmis@gmail.com>,
linux-phy@lists.infradead.org, linux-pci@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [PATCH v9 3/4] phy: rockchip-pcie: Enable all four lanes if required
Date: Mon, 30 Jun 2025 18:55:50 -0300 [thread overview]
Message-ID: <16b610aab34e069fd31d9f57260c10df2a968f80.1751320056.git.geraldogabriel@gmail.com> (raw)
In-Reply-To: <cover.1751320056.git.geraldogabriel@gmail.com>
Current code enables only Lane 0 because pwr_cnt will be incremented on
first call to the function. Let's reorder the enablement code to enable
all 4 lanes through GRF.
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Valmantas Paliksa <walmis@gmail.com>
Signed-off-by: Geraldo Nascimento <geraldogabriel@gmail.com>
---
drivers/phy/rockchip/phy-rockchip-pcie.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/phy/rockchip/phy-rockchip-pcie.c b/drivers/phy/rockchip/phy-rockchip-pcie.c
index bd44af36c67a..f22ffb41cdc2 100644
--- a/drivers/phy/rockchip/phy-rockchip-pcie.c
+++ b/drivers/phy/rockchip/phy-rockchip-pcie.c
@@ -160,6 +160,12 @@ static int rockchip_pcie_phy_power_on(struct phy *phy)
guard(mutex)(&rk_phy->pcie_mutex);
+ regmap_write(rk_phy->reg_base,
+ rk_phy->phy_data->pcie_laneoff,
+ HIWORD_UPDATE(!PHY_LANE_IDLE_OFF,
+ PHY_LANE_IDLE_MASK,
+ PHY_LANE_IDLE_A_SHIFT + inst->index));
+
if (rk_phy->pwr_cnt++) {
return 0;
}
@@ -176,12 +182,6 @@ static int rockchip_pcie_phy_power_on(struct phy *phy)
PHY_CFG_ADDR_MASK,
PHY_CFG_ADDR_SHIFT));
- regmap_write(rk_phy->reg_base,
- rk_phy->phy_data->pcie_laneoff,
- HIWORD_UPDATE(!PHY_LANE_IDLE_OFF,
- PHY_LANE_IDLE_MASK,
- PHY_LANE_IDLE_A_SHIFT + inst->index));
-
/*
* No documented timeout value for phy operation below,
* so we make it large enough here. And we use loop-break
--
2.49.0
next prev parent reply other threads:[~2025-06-30 21:55 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-30 21:53 [PATCH v9 0/4] PCI: rockchip: Improve driver quality Geraldo Nascimento
2025-06-30 21:53 ` [PATCH v9 1/4] PCI: rockchip: Use standard PCIe defines Geraldo Nascimento
2025-06-30 21:53 ` [PATCH v9 2/4] PCI: rockchip: Set Target Link Speed before retraining Geraldo Nascimento
2025-06-30 21:55 ` Valmantas Paliksa [this message]
2025-06-30 21:56 ` [PATCH v9 4/4] phy: rockchip-pcie: Properly disable TEST_WRITE strobe signal Geraldo Nascimento
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