mailbox: tegra: Fix superfluous IRQ error message
commit5.4-rM2-2.2.x-imx-squashedc745da8d43
upstream. Commit7723f4c5ec
("driver core: platform: Add an error message to platform_get_irq*()") added an error message to avoid drivers having to print an error message when IRQ lookup fails. However, there are some cases where IRQs are optional and so new optional versions of the platform_get_irq*() APIs have been added for these cases. The IRQs for Tegra HSP module are optional because not all instances of the module have the doorbell and all of the shared interrupts. Hence, since the above commit was applied the following error messages are now seen on Tegra194 ... ERR KERN tegra-hsp c150000.hsp: IRQ doorbell not found ERR KERN tegra-hsp c150000.hsp: IRQ shared0 not found The Tegra HSP driver deliberately does not fail if these are not found and so fix the above errors by updating the Tegra HSP driver to use the platform_get_irq_byname_optional() API. Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Acked-by: Thierry Reding <treding@nvidia.com> Link: https://lore.kernel.org/r/20191011083459.11551-1-jonathanh@nvidia.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
parent
05ee6e46a2
commit
8b3ae914e3
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@ -657,7 +657,7 @@ static int tegra_hsp_probe(struct platform_device *pdev)
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hsp->num_db = (value >> HSP_nDB_SHIFT) & HSP_nINT_MASK;
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hsp->num_si = (value >> HSP_nSI_SHIFT) & HSP_nINT_MASK;
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err = platform_get_irq_byname(pdev, "doorbell");
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err = platform_get_irq_byname_optional(pdev, "doorbell");
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if (err >= 0)
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hsp->doorbell_irq = err;
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@ -677,7 +677,7 @@ static int tegra_hsp_probe(struct platform_device *pdev)
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if (!name)
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return -ENOMEM;
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err = platform_get_irq_byname(pdev, name);
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err = platform_get_irq_byname_optional(pdev, name);
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if (err >= 0) {
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hsp->shared_irqs[i] = err;
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count++;
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