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phy: phy-can-transceiver: Skip warning if no "max-bitrate"

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[ Upstream commit bc30c15f27 ]

According to the DT bindings, the "max-bitrate" property is optional.
However, when it is not present, a warning is printed.
Fix this by adding a missing check for -EINVAL.

Fixes: a4a86d273f ("phy: phy-can-transceiver: Add support for generic CAN transceiver driver")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/88e158f97dd52ebaa7126cd9631f34764b9c0795.1674037334.git.geert+renesas@glider.be
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Geert Uytterhoeven 2023-01-18 11:29:58 +01:00 committed by Greg Kroah-Hartman
parent 567128076d
commit 8f4764c0d4
1 changed files with 3 additions and 2 deletions
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5
drivers/phy/phy-can-transceiver.c
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@ -99,6 +99,7 @@ static int can_transceiver_phy_probe(struct platform_device *pdev)
struct gpio_desc *standby_gpio;
struct gpio_desc *enable_gpio;
u32 max_bitrate = 0;
int err;
can_transceiver_phy = devm_kzalloc(dev, sizeof(struct can_transceiver_phy), GFP_KERNEL);
if (!can_transceiver_phy)
@ -124,8 +125,8 @@ static int can_transceiver_phy_probe(struct platform_device *pdev)
return PTR_ERR(phy);
}
device_property_read_u32(dev, "max-bitrate", &max_bitrate);
if (!max_bitrate)
err = device_property_read_u32(dev, "max-bitrate", &max_bitrate);
if ((err != -EINVAL) && !max_bitrate)
dev_warn(dev, "Invalid value for transceiver max bitrate. Ignoring bitrate limit\n");
phy->attrs.max_link_rate = max_bitrate;