From: Marek Szyprowski <m.szyprowski@samsung.com>
To: linux-pci@vger.kernel.org, linux-samsung-soc@vger.kernel.org,
linux-phy@lists.infradead.org
Cc: "Marek Szyprowski" <m.szyprowski@samsung.com>,
"Jingoo Han" <jingoohan1@gmail.com>,
"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
"Rob Herring" <robh@kernel.org>,
"Krzysztof Wilczyński" <kw@linux.com>,
"Bjorn Helgaas" <bhelgaas@google.com>,
"Krzysztof Kozlowski" <krzysztof.kozlowski@linaro.org>,
"Alim Akhtar" <alim.akhtar@samsung.com>,
"Kishon Vijay Abraham I" <kishon@ti.com>,
"Vinod Koul" <vkoul@kernel.org>
Subject: [PATCH 2/2] PCI: dwc: exynos: Correct generic PHY usage
Date: Wed, 29 Jun 2022 00:04:09 +0200 [thread overview]
Message-ID: <20220628220409.26545-2-m.szyprowski@samsung.com> (raw)
In-Reply-To: <20220628220409.26545-1-m.szyprowski@samsung.com>
The proper initialization for generic PHYs is to call first phy_init(),
then phy_power_on().
While touching this, lets remove the phy_reset() call. It is just a
left-over from the obsoleted Exynos5440 support and current exynos-pcie
PHY driver doesn't even support this function. It is also rarely used by
other drivers.
Reported-by: Bjorn Helgaas <helgaas@kernel.org>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
---
The exynos-pcie PHY driver has been adjusted for this change in the
previous patch.
---
drivers/pci/controller/dwc/pci-exynos.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/pci/controller/dwc/pci-exynos.c b/drivers/pci/controller/dwc/pci-exynos.c
index 467c8d1cd7e4..0d490ae52874 100644
--- a/drivers/pci/controller/dwc/pci-exynos.c
+++ b/drivers/pci/controller/dwc/pci-exynos.c
@@ -258,9 +258,8 @@ static int exynos_pcie_host_init(struct pcie_port *pp)
exynos_pcie_assert_core_reset(ep);
- phy_reset(ep->phy);
- phy_power_on(ep->phy);
phy_init(ep->phy);
+ phy_power_on(ep->phy);
exynos_pcie_deassert_core_reset(ep);
exynos_pcie_enable_irq_pulse(ep);
--
2.17.1
next prev parent reply other threads:[~2022-06-28 22:04 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20220628220437eucas1p2c478751458323f93a71050c4a949f12e@eucas1p2.samsung.com>
2022-06-28 22:04 ` [PATCH 1/2] phy: samsung: phy-exynos-pcie: sanitize init/power_on callbacks Marek Szyprowski
2022-06-28 22:04 ` Marek Szyprowski [this message]
2022-06-29 2:57 ` [PATCH 2/2] PCI: dwc: exynos: Correct generic PHY usage Chanho Park
2022-06-29 6:05 ` Krzysztof Kozlowski
2022-06-29 2:57 ` [PATCH 1/2] phy: samsung: phy-exynos-pcie: sanitize init/power_on callbacks Chanho Park
2022-06-29 6:04 ` Krzysztof Kozlowski
2022-07-05 6:25 ` Vinod Koul
2022-07-12 20:12 ` Bjorn Helgaas
2022-07-15 11:35 ` Vinod Koul
2022-07-15 22:43 ` Bjorn Helgaas
2022-07-15 23:12 ` Bjorn Helgaas
2022-07-15 11:35 ` Vinod Koul
2022-07-15 23:21 ` Bjorn Helgaas
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