openwrt/target/linux/brcm2708/patches-3.18/0047-spi-bcm2708-Prepare-for-Common-Clock-Framework-migra.patch

From d828fe6d765939e457e87d7f348adfe69cfd4175 Mon Sep 17 00:00:00 2001
From: notro <notro@tronnes.org>
Date: Sun, 6 Jul 2014 12:07:25 +0200
Subject: [PATCH 047/114] spi-bcm2708: Prepare for Common Clock Framework
 migration

As part of migrating to use the Common Clock Framework, replace clk_enable()
with clk_prepare_enable() and clk_disable() with clk_disable_unprepare().
This does not affect behaviour under the current clock implementation.

Also add a missing clk_disable_unprepare() in the probe error path.

Signed-off-by: Noralf Tronnes <notro@tronnes.org>
---
 drivers/spi/spi-bcm2708.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

--- a/drivers/spi/spi-bcm2708.c
+++ b/drivers/spi/spi-bcm2708.c
@@ -545,7 +545,7 @@ static int bcm2708_spi_probe(struct plat
 	}
 
 	/* initialise the hardware */
-	clk_enable(clk);
+	clk_prepare_enable(clk);
 	bcm2708_wr(bs, SPI_CS, SPI_CS_REN | SPI_CS_CLEAR_RX | SPI_CS_CLEAR_TX);
 
 	err = spi_register_master(master);
@@ -561,6 +561,7 @@ static int bcm2708_spi_probe(struct plat
 
 out_free_irq:
 	free_irq(bs->irq, master);
+	clk_disable_unprepare(bs->clk);
 out_workqueue:
 	destroy_workqueue(bs->workq);
 out_iounmap:
@@ -585,7 +586,7 @@ static int bcm2708_spi_remove(struct pla
 
 	flush_work(&bs->work);
 
-	clk_disable(bs->clk);
+	clk_disable_unprepare(bs->clk);
 	clk_put(bs->clk);
 	free_irq(bs->irq, master);
 	iounmap(bs->base);