bus: ti-sysc: Support modules without control registers (2928135c) · Commits · 戴 / test

Some modules like MPU have a powerdomain and functional clock but not necessarily any control registers. Let's allow configuring interconnect target modules with no control registers. Signed-off-by:

Tony Lindgren <tony@atomide.com>

drivers/bus/ti-sysc.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -853,8 +853,12 @@ static int sysc_ioremap(struct sysc *ddata)
		*/
		static int sysc_map_and_check_registers(struct sysc *ddata)
		{
		struct device_node *np = ddata->dev->of_node;
		int error;

		if (!of_get_property(np, "reg", NULL))
		return 0;

		error = sysc_parse_and_check_child_range(ddata);
		if (error)
		return error;
		@@ -2911,6 +2915,9 @@ static int sysc_probe(struct platform_device *pdev)
		if (!ddata)
		return -ENOMEM;

		ddata->offsets[SYSC_REVISION] = -ENODEV;
		ddata->offsets[SYSC_SYSCONFIG] = -ENODEV;
		ddata->offsets[SYSC_SYSSTATUS] = -ENODEV;
		ddata->dev = &pdev->dev;
		platform_set_drvdata(pdev, ddata);

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