Hi Sakari,
Thanks for the quick review.
On Thu, Nov 29, 2012 at 1:48 AM, Sakari Ailus <sakari.ailus@xxxxxx> wrote:
> Hi Prabhakar,
>
> On Wed, Nov 28, 2012 at 04:25:33PM +0530, Prabhakar Lad wrote:
>> From: Manjunath Hadli <manjunath.hadli@xxxxxx>
>>
>> request_mem_region for VPSS_CLK_CTRL register and ioremap.
>> and enable clocks appropriately.
>>
>> Signed-off-by: Manjunath Hadli <manjunath.hadli@xxxxxx>
>> Signed-off-by: Lad, Prabhakar <prabhakar.lad@xxxxxx>
>> ---
>> drivers/media/platform/davinci/vpss.c | 14 ++++++++++++++
>> 1 files changed, 14 insertions(+), 0 deletions(-)
>>
>> diff --git a/drivers/media/platform/davinci/vpss.c b/drivers/media/platform/davinci/vpss.c
>> index 34ad7bd..a36d694 100644
>> --- a/drivers/media/platform/davinci/vpss.c
>> +++ b/drivers/media/platform/davinci/vpss.c
>> @@ -103,6 +103,7 @@ struct vpss_hw_ops {
>> struct vpss_oper_config {
>> __iomem void *vpss_regs_base0;
>> __iomem void *vpss_regs_base1;
>> + resource_size_t *vpss_regs_base2;
>> enum vpss_platform_type platform;
>> spinlock_t vpss_lock;
>> struct vpss_hw_ops hw_ops;
>> @@ -484,11 +485,24 @@ static struct platform_driver vpss_driver = {
>>
>> static void vpss_exit(void)
>> {
>> + iounmap(oper_cfg.vpss_regs_base2);
>> + release_mem_region(*oper_cfg.vpss_regs_base2, 4);
>
> release_mem_region(VPSS_CLK_CTRL, 4);?
>
Ok.
>> platform_driver_unregister(&vpss_driver);
>> }
>>
>> +#define VPSS_CLK_CTRL 0x01c40044
>> +#define VPSS_CLK_CTRL_VENCCLKEN BIT(3)
>> +#define VPSS_CLK_CTRL_DACCLKEN BIT(4)
>> +
>> static int __init vpss_init(void)
>> {
>> + if (request_mem_region(VPSS_CLK_CTRL, 4, "vpss_clock_control")) {
>
> if (!request_mem_region())
> return -EBUSY;
>
Ok makes sense returning early on failure.
Regards,
--Prabhakar
> ...
>
>> + oper_cfg.vpss_regs_base2 = ioremap(VPSS_CLK_CTRL, 4);
>> + __raw_writel(VPSS_CLK_CTRL_VENCCLKEN |
>> + VPSS_CLK_CTRL_DACCLKEN, oper_cfg.vpss_regs_base2);
>> + } else {
>> + return -EBUSY;
>> + }
>> return platform_driver_register(&vpss_driver);
>> }
>> subsys_initcall(vpss_init);
>
> --
> Sakari Ailus
> e-mail: sakari.ailus@xxxxxx XMPP: sailus@xxxxxxxxxxxxxx
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
