[PATCH 05/80] hwrng: Remove redundant pm_runtime_mark_last_busy() calls

[Sakari Ailus]

pm_runtime_put_autosuspend(), pm_runtime_put_sync_autosuspend(),
pm_runtime_autosuspend() and pm_request_autosuspend() now include a call
to pm_runtime_mark_last_busy(). Remove the now-reduntant explicit call to
pm_runtime_mark_last_busy().

Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
---
The cover letter of the set can be found here
<URL:https://lore.kernel.org/linux-pm/20250704075225.3212486-1-sakari.ailus@xxxxxxxxxxxxxxx>.

In brief, this patch depends on PM runtime patches adding marking the last
busy timestamp in autosuspend related functions. The patches are here, on
rc2:

        git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git \
                pm-runtime-6.17-rc1

 drivers/char/hw_random/atmel-rng.c     | 1 -
 drivers/char/hw_random/cctrng.c        | 1 -
 drivers/char/hw_random/mtk-rng.c       | 1 -
 drivers/char/hw_random/npcm-rng.c      | 1 -
 drivers/char/hw_random/omap3-rom-rng.c | 1 -
 drivers/char/hw_random/rockchip-rng.c  | 3 ---
 drivers/char/hw_random/stm32-rng.c     | 1 -
 7 files changed, 9 deletions(-)

diff --git a/drivers/char/hw_random/atmel-rng.c b/drivers/char/hw_random/atmel-rng.c
index d2b00458761e..6ed24be3481d 100644
--- a/drivers/char/hw_random/atmel-rng.c
+++ b/drivers/char/hw_random/atmel-rng.c
@@ -80,7 +80,6 @@ static int atmel_trng_read(struct hwrng *rng, void *buf, size_t max,
 	ret = 4;
 
 out:
-	pm_runtime_mark_last_busy(trng->dev);
 	pm_runtime_put_sync_autosuspend(trng->dev);
 	return ret;
 }
diff --git a/drivers/char/hw_random/cctrng.c b/drivers/char/hw_random/cctrng.c
index 4db198849695..a5be9258037f 100644
--- a/drivers/char/hw_random/cctrng.c
+++ b/drivers/char/hw_random/cctrng.c
@@ -98,7 +98,6 @@ static void cc_trng_pm_put_suspend(struct device *dev)
 {
 	int rc = 0;
 
-	pm_runtime_mark_last_busy(dev);
 	rc = pm_runtime_put_autosuspend(dev);
 	if (rc)
 		dev_err(dev, "pm_runtime_put_autosuspend returned %x\n", rc);
diff --git a/drivers/char/hw_random/mtk-rng.c b/drivers/char/hw_random/mtk-rng.c
index b7fa1bc1122b..c89171df7635 100644
--- a/drivers/char/hw_random/mtk-rng.c
+++ b/drivers/char/hw_random/mtk-rng.c
@@ -98,7 +98,6 @@ static int mtk_rng_read(struct hwrng *rng, void *buf, size_t max, bool wait)
 		max -= sizeof(u32);
 	}
 
-	pm_runtime_mark_last_busy(priv->dev);
 	pm_runtime_put_sync_autosuspend(priv->dev);
 
 	return retval || !wait ? retval : -EIO;
diff --git a/drivers/char/hw_random/npcm-rng.c b/drivers/char/hw_random/npcm-rng.c
index 3e308c890bd2..40d6e29dea03 100644
--- a/drivers/char/hw_random/npcm-rng.c
+++ b/drivers/char/hw_random/npcm-rng.c
@@ -80,7 +80,6 @@ static int npcm_rng_read(struct hwrng *rng, void *buf, size_t max, bool wait)
 		max--;
 	}
 
-	pm_runtime_mark_last_busy(priv->dev);
 	pm_runtime_put_sync_autosuspend(priv->dev);
 
 	return retval || !wait ? retval : -EIO;
diff --git a/drivers/char/hw_random/omap3-rom-rng.c b/drivers/char/hw_random/omap3-rom-rng.c
index 8064c792caf0..aa71f61c3dc9 100644
--- a/drivers/char/hw_random/omap3-rom-rng.c
+++ b/drivers/char/hw_random/omap3-rom-rng.c
@@ -56,7 +56,6 @@ static int omap3_rom_rng_read(struct hwrng *rng, void *data, size_t max, bool w)
 	else
 		r = 4;
 
-	pm_runtime_mark_last_busy(ddata->dev);
 	pm_runtime_put_autosuspend(ddata->dev);
 
 	return r;
diff --git a/drivers/char/hw_random/rockchip-rng.c b/drivers/char/hw_random/rockchip-rng.c
index fb4a30b95507..6e3ed4b85605 100644
--- a/drivers/char/hw_random/rockchip-rng.c
+++ b/drivers/char/hw_random/rockchip-rng.c
@@ -223,7 +223,6 @@ static int rk3568_rng_read(struct hwrng *rng, void *buf, size_t max, bool wait)
 	/* Read random data stored in the registers */
 	memcpy_fromio(buf, rk_rng->base + TRNG_RNG_DOUT, to_read);
 out:
-	pm_runtime_mark_last_busy(rk_rng->dev);
 	pm_runtime_put_sync_autosuspend(rk_rng->dev);
 
 	return (ret < 0) ? ret : to_read;
@@ -263,7 +262,6 @@ static int rk3576_rng_read(struct hwrng *rng, void *buf, size_t max, bool wait)
 	memcpy_fromio(buf, rk_rng->base + RKRNG_TRNG_DATA0, to_read);
 
 out:
-	pm_runtime_mark_last_busy(rk_rng->dev);
 	pm_runtime_put_sync_autosuspend(rk_rng->dev);
 
 	return (ret < 0) ? ret : to_read;
@@ -355,7 +353,6 @@ static int rk3588_rng_read(struct hwrng *rng, void *buf, size_t max, bool wait)
 	/* close the TRNG */
 	rk_rng_writel(rk_rng, TRNG_V1_CTRL_NOP, TRNG_V1_CTRL);
 
-	pm_runtime_mark_last_busy(rk_rng->dev);
 	pm_runtime_put_sync_autosuspend(rk_rng->dev);
 
 	return (ret < 0) ? ret : to_read;
diff --git a/drivers/char/hw_random/stm32-rng.c b/drivers/char/hw_random/stm32-rng.c
index 98edbe796bc5..9a8c00586ab0 100644
--- a/drivers/char/hw_random/stm32-rng.c
+++ b/drivers/char/hw_random/stm32-rng.c
@@ -255,7 +255,6 @@ static int stm32_rng_read(struct hwrng *rng, void *data, size_t max, bool wait)
 	}
 
 exit_rpm:
-	pm_runtime_mark_last_busy(priv->dev);
 	pm_runtime_put_sync_autosuspend(priv->dev);
 
 	return retval || !wait ? retval : -EIO;
-- 
2.39.5