Re: [PATCH 1/6] drm/bridge: imx8mp-hdmi-tx: Switch to SYSTEM_SLEEP_PM_OPS()

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On 27/06/2024 01:06, Fabio Estevam wrote:
From: Fabio Estevam <festevam@xxxxxxx>

Replace SET_SYSTEM_SLEEP_PM_OPS with its modern SYSTEM_SLEEP_PM_OPS()
alternative.

The combined usage of pm_ptr() and SYSTEM_SLEEP_PM_OPS()
allows the compiler to evaluate if the runtime suspend/resume() functions
are used at build time or are simply dead code.

This allows removing the __maybe_unused notation from the runtime
suspend/resume() functions.

Signed-off-by: Fabio Estevam <festevam@xxxxxxx>
---
  drivers/gpu/drm/bridge/imx/imx8mp-hdmi-tx.c | 9 ++++-----
  1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/bridge/imx/imx8mp-hdmi-tx.c b/drivers/gpu/drm/bridge/imx/imx8mp-hdmi-tx.c
index 13bc570c5473..4a3a8a3ce250 100644
--- a/drivers/gpu/drm/bridge/imx/imx8mp-hdmi-tx.c
+++ b/drivers/gpu/drm/bridge/imx/imx8mp-hdmi-tx.c
@@ -111,12 +111,12 @@ static void imx8mp_dw_hdmi_remove(struct platform_device *pdev)
  	dw_hdmi_remove(hdmi->dw_hdmi);
  }
-static int __maybe_unused imx8mp_dw_hdmi_pm_suspend(struct device *dev)
+static int imx8mp_dw_hdmi_pm_suspend(struct device *dev)
  {
  	return 0;
  }
-static int __maybe_unused imx8mp_dw_hdmi_pm_resume(struct device *dev)
+static int imx8mp_dw_hdmi_pm_resume(struct device *dev)
  {
  	struct imx8mp_hdmi *hdmi = dev_get_drvdata(dev);
@@ -126,8 +126,7 @@ static int __maybe_unused imx8mp_dw_hdmi_pm_resume(struct device *dev)
  }
static const struct dev_pm_ops imx8mp_dw_hdmi_pm_ops = {
-	SET_SYSTEM_SLEEP_PM_OPS(imx8mp_dw_hdmi_pm_suspend,
-				imx8mp_dw_hdmi_pm_resume)
+	SYSTEM_SLEEP_PM_OPS(imx8mp_dw_hdmi_pm_suspend, imx8mp_dw_hdmi_pm_resume)
  };
static const struct of_device_id imx8mp_dw_hdmi_of_table[] = {
@@ -142,7 +141,7 @@ static struct platform_driver imx8mp_dw_hdmi_platform_driver = {
  	.driver		= {
  		.name	= "imx8mp-dw-hdmi-tx",
  		.of_match_table = imx8mp_dw_hdmi_of_table,
-		.pm = &imx8mp_dw_hdmi_pm_ops,
+		.pm = pm_ptr(&imx8mp_dw_hdmi_pm_ops),
  	},
  };

Reviewed-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>



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