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gpio: qcom_pmic: fix silent dev_read_addr downcast
priv->pid is uint32_t, but dev_read_addr() returns a uint64_t on arm64, with the upper bits being used for error codes. Do error checking before downcasting to u32 to prevent errors being silently ignored. Reviewed-by: Sumit Garg <sumit.garg@linaro.org> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Tested-by: Sumit Garg <sumit.garg@linaro.org> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
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parent
a4ba2a6663
commit
033f09b4b4
1 changed files with 10 additions and 4 deletions
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@ -221,11 +221,14 @@ static int qcom_gpio_probe(struct udevice *dev)
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{
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struct qcom_gpio_bank *priv = dev_get_priv(dev);
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int reg;
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u64 pid;
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priv->pid = dev_read_addr(dev);
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if (priv->pid == FDT_ADDR_T_NONE)
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pid = dev_read_addr(dev);
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if (pid == FDT_ADDR_T_NONE)
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return log_msg_ret("bad address", -EINVAL);
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priv->pid = pid;
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/* Do a sanity check */
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reg = pmic_reg_read(dev->parent, priv->pid + REG_TYPE);
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if (reg != REG_TYPE_VAL)
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@ -328,11 +331,14 @@ static int qcom_pwrkey_probe(struct udevice *dev)
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{
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struct qcom_gpio_bank *priv = dev_get_priv(dev);
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int reg;
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u64 pid;
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priv->pid = dev_read_addr(dev);
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if (priv->pid == FDT_ADDR_T_NONE)
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pid = dev_read_addr(dev);
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if (pid == FDT_ADDR_T_NONE)
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return log_msg_ret("bad address", -EINVAL);
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priv->pid = pid;
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/* Do a sanity check */
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reg = pmic_reg_read(dev->parent, priv->pid + REG_TYPE);
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if (reg != 0x1)
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