[PATCH v2 6/6] memory: renesas-rpc-if: Use runtime PM autosuspend after transfers

From: Lad Prabhakar <[email protected]>

Replace pm_runtime_put() with pm_runtime_put_autosuspend() after manual
transfers and direct memory-mapped read/write operations.

Flash page programming may be performed as a sequence of closely spaced
transfer operations. Calling pm_runtime_put() after each operation allows
the runtime PM core to suspend the controller between successive
transfers, introducing unnecessary suspend/resume cycles and potentially
interrupting multi-step transfer sequences.

Use pm_runtime_put_autosuspend() instead so the controller remains
active while transfers continue, allowing it to suspend only after an
idle period.

Signed-off-by: Lad Prabhakar <[email protected]>
---
Note corresponding pm_runtime_set_autosuspend_delay()/pm_runtime_use_autosuspend()
calls are already present in SPI driver.
---
 drivers/memory/renesas-rpc-if.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/memory/renesas-rpc-if.c b/drivers/memory/renesas-rpc-if.c
index d98991266887..ec901a5a99aa 100644
--- a/drivers/memory/renesas-rpc-if.c
+++ b/drivers/memory/renesas-rpc-if.c
@@ -776,7 +776,7 @@ int rpcif_manual_xfer(struct device *dev)
 
 	ret = rpc->info->impl->manual_xfer(rpc);
 
-	pm_runtime_put(dev);
+	pm_runtime_put_autosuspend(dev);
 
 	return ret;
 }
@@ -891,7 +891,7 @@ ssize_t rpcif_dirmap_read(struct device *dev, u64 offs, size_t len, void *buf)
 
 	read = rpc->info->impl->dirmap_read(rpc, offs, len, buf);
 
-	pm_runtime_put(dev);
+	pm_runtime_put_autosuspend(dev);
 
 	return read;
 }
@@ -948,7 +948,7 @@ ssize_t xspi_dirmap_write(struct device *dev, u64 offs, size_t len, const void *
 		regmap_update_bits(xspi->regmap, XSPI_BMCTL1,
 				   XSPI_BMCTL1_MWRPUSH, XSPI_BMCTL1_MWRPUSH);
 
-	pm_runtime_put(dev);
+	pm_runtime_put_autosuspend(dev);
 
 	return writebytes;
 }
-- 
2.54.0