lkml.org 
[lkml]   [2012]   [Sep]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRE: [PATCH] spi:clk: preparation for switch to common clock framework
Date
>> -----Original Message-----
>> From: Karicheri, Muralidharan
>> Sent: Thursday, August 30, 2012 2:25 PM
>> To: linux-kernel@vger.kernel.org; mturquette@linaro.org; spi-devel-
>> general@lists.sourceforge.net; grant.likely@secretlab.ca
>> Cc: Karicheri, Muralidharan
>> Subject: [PATCH] spi:clk: preparation for switch to common clock framework
>>
>> As a first step towards migrating davinci platforms to use common clock
>> framework, replace all instances of clk_enable() with clk_prepare_enable()
>> and clk_disable() with clk_disable_unprepare(). Until the platform is
>> switched to use the CONFIG_HAVE_CLK_PREPARE Kconfig variable, this just
>> adds a might_sleep() call and would work without any issues.
>>
>> This will make it easy later to switch to common clk based implementation
>> of clk driver from DaVinci specific driver.
>>
>> Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
>> ---
>> drivers/spi/spi-davinci.c | 6 +++---
>> 1 file changed, 3 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/spi/spi-davinci.c b/drivers/spi/spi-davinci.c
>> index 9b2901f..71a6423 100644
>> --- a/drivers/spi/spi-davinci.c
>> +++ b/drivers/spi/spi-davinci.c
>> @@ -873,7 +873,7 @@ static int __devinit davinci_spi_probe(struct platform_device
>> *pdev)
>> ret = -ENODEV;
>> goto put_master;
>> }
>> - clk_enable(dspi->clk);
>> + clk_prepare_enable(dspi->clk);
>>
>> master->bus_num = pdev->id;
>> master->num_chipselect = pdata->num_chipselect;
>> @@ -959,7 +959,7 @@ free_dma:
>> edma_free_channel(dspi->dma.rx_channel);
>> edma_free_slot(dspi->dma.dummy_param_slot);
>> free_clk:
>> - clk_disable(dspi->clk);
>> + clk_disable_unprepare(dspi->clk);
>> clk_put(dspi->clk);
>> put_master:
>> spi_master_put(master);
>> @@ -995,7 +995,7 @@ static int __devexit davinci_spi_remove(struct platform_device
>> *pdev)
>>
>> spi_bitbang_stop(&dspi->bitbang);
>>
>> - clk_disable(dspi->clk);
>> + clk_disable_unprepare(dspi->clk);
>> clk_put(dspi->clk);
>> spi_master_put(master);
>> free_irq(dspi->irq, dspi);
>> --
>> 1.7.9.5

subsystem owner,

Could you please review and apply this patch as needed? We need to get this upstream before submitting the patch for Common clock framework support for mach-davinci. If I need to follow a specific procedure to get this merged, please direct me to a process page.

Thanks.

Murali Karicheri
Software Design Engineer



\
 
 \ /
  Last update: 2012-09-07 21:22    [W:1.523 / U:0.008 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site