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| author | Josh Wu <josh.wu@atmel.com> | 2014-11-25 10:30:25 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-03-02 17:27:11 +0100 |
| commit | ce037f19aaef992c634af653b17e61eee30a9404 (patch) | |
| tree | 92eacbba08e01fa81f101dafebaa409ab2be871e /drivers | |
| parent | [media] vb2: fix 'UNBALANCED' warnings when calling vb2_thread_stop() (diff) | |
| download | linux-ce037f19aaef992c634af653b17e61eee30a9404.tar.xz linux-ce037f19aaef992c634af653b17e61eee30a9404.zip | |
[media] media: atmel-isi: increase the burst length to improve the performance
The burst length could be BEATS_4/8/16. Before this patch, isi use default
value BEATS_4. To imporve the performance we could set it to BEATS_16.
Otherwise sometime it would cause the ISI overflow error.
Reported-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/platform/soc_camera/atmel-isi.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/media/platform/soc_camera/atmel-isi.c b/drivers/media/platform/soc_camera/atmel-isi.c index 8526bf5c8429..c835beb2a1a8 100644 --- a/drivers/media/platform/soc_camera/atmel-isi.c +++ b/drivers/media/platform/soc_camera/atmel-isi.c @@ -843,6 +843,8 @@ static int isi_camera_set_bus_param(struct soc_camera_device *icd) if (isi->pdata.full_mode) cfg1 |= ISI_CFG1_FULL_MODE; + cfg1 |= ISI_CFG1_THMASK_BEATS_16; + isi_writel(isi, ISI_CTRL, ISI_CTRL_DIS); isi_writel(isi, ISI_CFG1, cfg1); |