bus: ti-sysc: Fix warning on unbind if reset is not deasserted

We currently get thefollowing on driver unbind if a reset is configured and asserted:

WARNING: CPU: 0 PID: 993 at drivers/reset/core.c:432 reset_control_assert

...
(reset_control_assert) from [<c0fecda8>] (sysc_remove+0x190/0x1e4) (sysc_remove) from [<c0a2bb58>] (platform_remove+0x24/0x3c) (platform_remove) from [<c0a292fc>] (__device_release_driver+0x154/0x214) (__device_release_driver) from [<c0a2a210>] (device_driver_detach+0x3c/0x8c) (device_driver_detach) from [<c0a27d64>] (unbind_store+0x60/0xd4) (unbind_store) from [<c0546bec>] (kernfs_fop_write_iter+0x10c/0x1cc)

Let's fix it by checking the reset status.

---
 drivers/bus/ti-sysc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

@@ -3053,7 +3053,9 @@ static int sysc_remove(struct platform_device *pdev)
 
 	pm_runtime_put_sync(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
-	reset_control_assert(ddata->rsts);
+
+	if (!reset_control_status(ddata->rsts))
+		reset_control_assert(ddata->rsts);
 
 unprepare:
 	sysc_unprepare(ddata);

2.30.1

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