diff options
| author | Josh Wu <josh.wu@atmel.com> | 2012-01-11 00:58:29 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-01-23 18:13:21 -0200 |
| commit | 03652e0ad4b140523ec5ef7fec8d2b3c7218447b (patch) | |
| tree | 871ec63aeb4fb1ff9553e007ed96316c33417cab /drivers/media/video/atmel-isi.c | |
| parent | 72565224609a23a60d10fcdf42f87a2fa8f7b16d (diff) | |
[media] V4L: atmel-isi: add clk_prepare()/clk_unprepare() functions
Signed-off-by: Josh Wu <josh.wu@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/atmel-isi.c')
| -rw-r--r-- | drivers/media/video/atmel-isi.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/media/video/atmel-isi.c b/drivers/media/video/atmel-isi.c index 9fe4519176a4..ec3f6a06f9c3 100644 --- a/drivers/media/video/atmel-isi.c +++ b/drivers/media/video/atmel-isi.c @@ -922,7 +922,9 @@ static int __devexit atmel_isi_remove(struct platform_device *pdev) isi->fb_descriptors_phys); iounmap(isi->regs); + clk_unprepare(isi->mck); clk_put(isi->mck); + clk_unprepare(isi->pclk); clk_put(isi->pclk); kfree(isi); @@ -955,6 +957,10 @@ static int __devinit atmel_isi_probe(struct platform_device *pdev) if (IS_ERR(pclk)) return PTR_ERR(pclk); + ret = clk_prepare(pclk); + if (ret) + goto err_clk_prepare_pclk; + isi = kzalloc(sizeof(struct atmel_isi), GFP_KERNEL); if (!isi) { ret = -ENOMEM; @@ -978,6 +984,10 @@ static int __devinit atmel_isi_probe(struct platform_device *pdev) goto err_clk_get; } + ret = clk_prepare(isi->mck); + if (ret) + goto err_clk_prepare_mck; + /* Set ISI_MCK's frequency, it should be faster than pixel clock */ ret = clk_set_rate(isi->mck, pdata->mck_hz); if (ret < 0) @@ -1059,10 +1069,14 @@ err_alloc_ctx: isi->fb_descriptors_phys); err_alloc_descriptors: err_set_mck_rate: + clk_unprepare(isi->mck); +err_clk_prepare_mck: clk_put(isi->mck); err_clk_get: kfree(isi); err_alloc_isi: + clk_unprepare(pclk); +err_clk_prepare_pclk: clk_put(pclk); return ret; |