diff options
Diffstat (limited to 'target/linux/brcm2708/patches-3.18/0047-spi-bcm2708-Prepare-for-Common-Clock-Framework-migra.patch')
| -rwxr-xr-x | target/linux/brcm2708/patches-3.18/0047-spi-bcm2708-Prepare-for-Common-Clock-Framework-migra.patch | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-3.18/0047-spi-bcm2708-Prepare-for-Common-Clock-Framework-migra.patch b/target/linux/brcm2708/patches-3.18/0047-spi-bcm2708-Prepare-for-Common-Clock-Framework-migra.patch new file mode 100755 index 0000000..b6dc556 --- /dev/null +++ b/target/linux/brcm2708/patches-3.18/0047-spi-bcm2708-Prepare-for-Common-Clock-Framework-migra.patch @@ -0,0 +1,50 @@ +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(-) + +diff --git a/drivers/spi/spi-bcm2708.c b/drivers/spi/spi-bcm2708.c +index b04a57d..349d21f 100644 +--- a/drivers/spi/spi-bcm2708.c ++++ b/drivers/spi/spi-bcm2708.c +@@ -545,7 +545,7 @@ static int bcm2708_spi_probe(struct platform_device *pdev) + } + + /* 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 platform_device *pdev) + + 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 platform_device *pdev) + + 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); +-- +1.8.3.2 + |