diff options
| author | Tony Lindgren <tony@atomide.com> | 2020-11-16 12:57:13 +0200 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2020-11-16 12:57:24 +0200 |
| commit | 2928135c93f873b260ba1a88023f0bbe0f67e315 (patch) | |
| tree | 357dd925fc7577e1d73facb20c1e9f4b999bbb7c /drivers | |
| parent | ae5f70f707889dfd056905d9ea69e3f72dace213 (diff) | |
| download | lwn-2928135c93f873b260ba1a88023f0bbe0f67e315.tar.gz lwn-2928135c93f873b260ba1a88023f0bbe0f67e315.zip | |
bus: ti-sysc: Support modules without control registers
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/bus/ti-sysc.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c index 2b99fd5a4740..88a5d22091f3 100644 --- a/drivers/bus/ti-sysc.c +++ b/drivers/bus/ti-sysc.c @@ -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); |