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Message-Id: <20220927051752.53089-1-aurelien@aurel32.net>
Date:   Tue, 27 Sep 2022 07:17:52 +0200
From:   Aurelien Jarno <aurelien@...el32.net>
To:     Kishon Vijay Abraham I <kishon@...com>,
        Vinod Koul <vkoul@...nel.org>,
        Heiko Stuebner <heiko@...ech.de>,
        Shawn Lin <shawn.lin@...k-chips.com>,
        Frank Wunderlich <frank-w@...lic-files.de>,
        linux-phy@...ts.infradead.org (open list:GENERIC PHY FRAMEWORK),
        linux-arm-kernel@...ts.infradead.org (moderated list:ARM/Rockchip SoC
        support),
        linux-rockchip@...ts.infradead.org (open list:ARM/Rockchip SoC support),
        linux-kernel@...r.kernel.org (open list)
Cc:     Peter Geis <pgwipeout@...il.com>,
        Aurelien Jarno <aurelien@...el32.net>
Subject: [PATCH] phy: rockchip-snps-pcie3: only look for rockchip,pipe-grf on rk3588

The rockchip,pipe-grf property is only used on rk3588, but not on
rk3568. Therefore this property is not present on rk3568 devices,
leading to the following message:

  rockchip-snps-pcie3-phy fe8c0000.phy: failed to find rockchip,pipe_grf regmap

Fix that by only looking for this property on rk3588.

Fixes: 2e9bffc4f713d ("phy: rockchip: Support PCIe v3")
Signed-off-by: Aurelien Jarno <aurelien@...el32.net>
---
 drivers/phy/rockchip/phy-rockchip-snps-pcie3.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/drivers/phy/rockchip/phy-rockchip-snps-pcie3.c b/drivers/phy/rockchip/phy-rockchip-snps-pcie3.c
index 1917edda6b47..1dc12eb8dfd3 100644
--- a/drivers/phy/rockchip/phy-rockchip-snps-pcie3.c
+++ b/drivers/phy/rockchip/phy-rockchip-snps-pcie3.c
@@ -257,10 +257,15 @@ static int rockchip_p3phy_probe(struct platform_device *pdev)
 		return PTR_ERR(priv->phy_grf);
 	}
 
-	priv->pipe_grf = syscon_regmap_lookup_by_phandle(dev->of_node,
-							 "rockchip,pipe-grf");
-	if (IS_ERR(priv->pipe_grf))
-		dev_info(dev, "failed to find rockchip,pipe_grf regmap\n");
+	if (of_device_is_compatible(np, "rockchip,rk3588-pcie3-phy")) {
+		priv->pipe_grf =
+			syscon_regmap_lookup_by_phandle(dev->of_node,
+							"rockchip,pipe-grf");
+		if (IS_ERR(priv->pipe_grf))
+			dev_info(dev, "failed to find rockchip,pipe_grf regmap\n");
+	} else {
+		priv->pipe_grf = NULL;
+	}
 
 	priv->num_lanes = of_property_read_variable_u32_array(dev->of_node, "data-lanes",
 							     priv->lanes, 2,
-- 
2.35.1

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