This is a note to let you know that I've just added the patch titled phy: qcom-qmp-pcie: add pcs_misc sanity check to the 6.0-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: phy-qcom-qmp-pcie-add-pcs_misc-sanity-check.patch and it can be found in the queue-6.0 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit b0679c6500ea26c60063bcf4d02b8ebfa44747de Author: Johan Hovold <johan+linaro@xxxxxxxxxx> Date: Fri Sep 16 12:23:30 2022 +0200 phy: qcom-qmp-pcie: add pcs_misc sanity check [ Upstream commit ecd5507e72ea03659dc2cc3e4393fbf8f4e2e02a ] Make sure that the (otherwise) optional pcs_misc IO region has been provided in case the configuration specifies a corresponding initialisation table to avoid crashing with malformed device trees. Note that the related debug message is now superfluous as the region is only used when the configuration has a pcs_misc table. Fixes: 421c9a0e9731 ("phy: qcom: qmp: Add SDM845 PCIe QMP PHY support") Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx> Link: https://lore.kernel.org/r/20220916102340.11520-2-johan+linaro@xxxxxxxxxx Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c index 2d65e1f56bfc..0e0f2482827a 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c +++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c @@ -2371,8 +2371,10 @@ int qcom_qmp_phy_pcie_create(struct device *dev, struct device_node *np, int id, of_device_is_compatible(dev->of_node, "qcom,ipq6018-qmp-pcie-phy")) qphy->pcs_misc = qphy->pcs + 0x400; - if (!qphy->pcs_misc) - dev_vdbg(dev, "PHY pcs_misc-reg not used\n"); + if (!qphy->pcs_misc) { + if (cfg->pcs_misc_tbl || cfg->pcs_misc_tbl_sec) + return -EINVAL; + } snprintf(prop_name, sizeof(prop_name), "pipe%d", id); qphy->pipe_clk = devm_get_clk_from_child(dev, np, prop_name);