linux-kernel - [PATCH v2] usb: dwc3-of-simple: Stop using of_reset_control_array

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Date: Thu, 25 Jan 2024 12:29:08 +0100
From: Philipp Zabel <p.zabel@...gutronix.de>
To: Thinh Nguyen <Thinh.Nguyen@...opsys.com>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Martin Blumenstingl <martin.blumenstingl@...glemail.com>, 
 Neil Armstrong <neil.armstrong@...aro.org>, Felipe Balbi <balbi@...nel.org>
Cc: linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Philipp Zabel <p.zabel@...gutronix.de>
Subject: [PATCH v2] usb: dwc3-of-simple: Stop using
 of_reset_control_array_get() directly

Use of_reset_control_array_get_optional_exclusive() instead, it is
implemented as:

  static inline struct reset_control *
  of_reset_control_array_get_optional_exclusive(struct device_node *node)
  {
          return of_reset_control_array_get(node, false, true, true);
  }

This makes the code easier to understand and removes the last remaining
direct use of of_reset_control_array_get(). No functional changes.

This change was made possible by commit f4cc91ddd856 ("usb: dwc3:
of-simple: remove Amlogic GXL and AXG compatibles"), which made the
parameters passed to of_reset_control_array_get() constant.

Signed-off-by: Philipp Zabel <p.zabel@...gutronix.de>
---
Changes in v2:
- Drop Fixes tag, adapt commit message.
- Link to v1: https://lore.kernel.org/r/20240124-dwc3-of-simple-reset-control-array-fix-v1-1-808182cc3f0e@pengutronix.de
---
 drivers/usb/dwc3/dwc3-of-simple.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/usb/dwc3/dwc3-of-simple.c b/drivers/usb/dwc3/dwc3-of-simple.c
index d1539fc9eabd..9cf9ee1b637b 100644
--- a/drivers/usb/dwc3/dwc3-of-simple.c
+++ b/drivers/usb/dwc3/dwc3-of-simple.c
@@ -52,8 +52,7 @@ static int dwc3_of_simple_probe(struct platform_device *pdev)
 	if (of_device_is_compatible(np, "rockchip,rk3399-dwc3"))
 		simple->need_reset = true;
 
-	simple->resets = of_reset_control_array_get(np, false, true,
-						    true);
+	simple->resets = of_reset_control_array_get_optional_exclusive(np);
 	if (IS_ERR(simple->resets)) {
 		ret = PTR_ERR(simple->resets);
 		dev_err(dev, "failed to get device resets, err=%d\n", ret);

---
base-commit: 6613476e225e090cc9aad49be7fa504e290dd33d
change-id: 20240124-dwc3-of-simple-reset-control-array-fix-e4e9822028dd

Best regards,
-- 
Philipp Zabel <p.zabel@...gutronix.de>