[PATCH 4/9] bus: ti-sysc: Support modules without control registers
From: Tony Lindgren <tony@atomide.com>
Date: 2020-11-10 11:21:07
Also in:
linux-clk, linux-omap, linux-remoteproc, lkml
Subsystem:
omap2+ support, the rest · Maintainers:
Aaro Koskinen, Andreas Kemnade, Kevin Hilman, Roger Quadros, Tony Lindgren, Linus Torvalds
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 +++++++ 1 file changed, 7 insertions(+)
diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
--- 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);
--
2.29.2
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