On 4/14/2022 2:47 AM, Dmitry Osipenko wrote:
External email: Use caution opening links or attachments On 4/13/22 12:40, Ashish Mhetre wrote:+static int tegra186_mc_map_regs(struct tegra_mc *mc) +{ + struct platform_device *pdev = to_platform_device(mc->dev); + int i; + + mc->bcast_ch_regs = devm_platform_ioremap_resource_byname(pdev, "broadcast"); + if (IS_ERR(mc->bcast_ch_regs)) { + if (PTR_ERR(mc->bcast_ch_regs) == -EINVAL) { + dev_warn(&pdev->dev, "Broadcast channel is missing, please update your device-tree\n");Set mc->bcast_ch_regs=NULL on error.
It's not really necessary. If mc->bcast_ch_regs == -EINVAL, then interrupts won't occur at all. I have added explanation in patch 2.
