6.15-stable review patch. If anyone has any objections, please let me know.
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From: Xu Yang xu.yang_2@nxp.com
commit b15ee09ddb987a122e74fb0fdf1bd6e864959fd3 upstream.
The description of TX_VBOOST_LVL is wrong in register PHY_CTRL3 bit[31:29].
The updated description as below: 011: Corresponds to a launch amplitude of 0.844 V. 100: Corresponds to a launch amplitude of 1.008 V. 101: Corresponds to a launch amplitude of 1.156 V.
This will fix the parsing function phy_tx_vboost_level_from_property() to return correct value.
Fixes: 63c85ad0cd81 ("phy: fsl-imx8mp-usb: add support for phy tuning") Cc: stable@vger.kernel.org Reviewed-by: Jun Li jun.li@nxp.com Signed-off-by: Xu Yang xu.yang_2@nxp.com Link: https://lore.kernel.org/r/20250430094502.2723983-3-xu.yang_2@nxp.com Signed-off-by: Vinod Koul vkoul@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/phy/freescale/phy-fsl-imx8mq-usb.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)
--- a/drivers/phy/freescale/phy-fsl-imx8mq-usb.c +++ b/drivers/phy/freescale/phy-fsl-imx8mq-usb.c @@ -317,12 +317,12 @@ static u32 phy_tx_preemp_amp_tune_from_p static u32 phy_tx_vboost_level_from_property(u32 microvolt) { switch (microvolt) { - case 0 ... 960: - return 0; - case 961 ... 1160: - return 2; - default: + case 1156: + return 5; + case 844: return 3; + default: + return 4; } }