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

   1 From d828fe6d765939e457e87d7f348adfe69cfd4175 Mon Sep 17 00:00:00 2001
   2 From: notro <notro@tronnes.org>
   3 Date: Sun, 6 Jul 2014 12:07:25 +0200
   4 Subject: [PATCH 047/114] spi-bcm2708: Prepare for Common Clock Framework
   5  migration
   6
   7 As part of migrating to use the Common Clock Framework, replace clk_enable()
   8 with clk_prepare_enable() and clk_disable() with clk_disable_unprepare().
   9 This does not affect behaviour under the current clock implementation.
  10
  11 Also add a missing clk_disable_unprepare() in the probe error path.
  12
  13 Signed-off-by: Noralf Tronnes <notro@tronnes.org>
  14 ---
  15  drivers/spi/spi-bcm2708.c | 5 +++--
  16  1 file changed, 3 insertions(+), 2 deletions(-)
  17
  18 --- a/drivers/spi/spi-bcm2708.c
  19 +++ b/drivers/spi/spi-bcm2708.c
  20 @@ -545,7 +545,7 @@ static int bcm2708_spi_probe(struct plat
  21         }
  22
  23         /* initialise the hardware */
  24 -       clk_enable(clk);
  25 +       clk_prepare_enable(clk);
  26         bcm2708_wr(bs, SPI_CS, SPI_CS_REN | SPI_CS_CLEAR_RX | SPI_CS_CLEAR_TX);
  27
  28         err = spi_register_master(master);
  29 @@ -561,6 +561,7 @@ static int bcm2708_spi_probe(struct plat
  30
  31  out_free_irq:
  32         free_irq(bs->irq, master);
  33 +       clk_disable_unprepare(bs->clk);
  34  out_workqueue:
  35         destroy_workqueue(bs->workq);
  36  out_iounmap:
  37 @@ -585,7 +586,7 @@ static int bcm2708_spi_remove(struct pla
  38
  39         flush_work(&bs->work);
  40
  41 -       clk_disable(bs->clk);
  42 +       clk_disable_unprepare(bs->clk);
  43         clk_put(bs->clk);
  44         free_irq(bs->irq, master);
  45         iounmap(bs->base);