diff options
Diffstat (limited to 'drivers/media/video/omap3isp/ispccp2.c')
| -rw-r--r-- | drivers/media/video/omap3isp/ispccp2.c | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/drivers/media/video/omap3isp/ispccp2.c b/drivers/media/video/omap3isp/ispccp2.c index 0e16cab8e089..ec9e395f3339 100644 --- a/drivers/media/video/omap3isp/ispccp2.c +++ b/drivers/media/video/omap3isp/ispccp2.c @@ -30,6 +30,7 @@ #include <linux/module.h> #include <linux/mutex.h> #include <linux/uaccess.h> +#include <linux/regulator/consumer.h> #include "isp.h" #include "ispreg.h" @@ -163,6 +164,9 @@ static void ccp2_if_enable(struct isp_ccp2_device *ccp2, u8 enable) struct isp_pipeline *pipe = to_isp_pipeline(&ccp2->subdev.entity); int i; + if (enable && ccp2->vdds_csib) + regulator_enable(ccp2->vdds_csib); + /* Enable/Disable all the LCx channels */ for (i = 0; i < CCP2_LCx_CHANS_NUM; i++) isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_CCP2, ISPCCP2_LCx_CTRL(i), @@ -186,6 +190,9 @@ static void ccp2_if_enable(struct isp_ccp2_device *ccp2, u8 enable) ISPCCP2_LC01_IRQENABLE, ISPCCP2_LC01_IRQSTATUS_LC0_FS_IRQ); } + + if (!enable && ccp2->vdds_csib) + regulator_disable(ccp2->vdds_csib); } /* @@ -1137,6 +1144,9 @@ error: */ void omap3isp_ccp2_cleanup(struct isp_device *isp) { + struct isp_ccp2_device *ccp2 = &isp->isp_ccp2; + + regulator_put(ccp2->vdds_csib); } /* @@ -1151,14 +1161,27 @@ int omap3isp_ccp2_init(struct isp_device *isp) init_waitqueue_head(&ccp2->wait); - /* On the OMAP36xx, the CCP2 uses the CSI PHY1 or PHY2, shared with + /* + * On the OMAP34xx the CSI1 receiver is operated in the CSIb IO + * complex, which is powered by vdds_csib power rail. Hence the + * request for the regulator. + * + * On the OMAP36xx, the CCP2 uses the CSI PHY1 or PHY2, shared with * the CSI2c or CSI2a receivers. The PHY then needs to be explicitly * configured. * * TODO: Don't hardcode the usage of PHY1 (shared with CSI2c). */ - if (isp->revision == ISP_REVISION_15_0) + if (isp->revision == ISP_REVISION_2_0) { + ccp2->vdds_csib = regulator_get(isp->dev, "vdds_csib"); + if (IS_ERR(ccp2->vdds_csib)) { + dev_dbg(isp->dev, + "Could not get regulator vdds_csib\n"); + ccp2->vdds_csib = NULL; + } + } else if (isp->revision == ISP_REVISION_15_0) { ccp2->phy = &isp->isp_csiphy1; + } ret = ccp2_init_entities(ccp2); if (ret < 0) |