Re: [RFC] omap3isp: add support for CSI1 bus

From: Pavel Machek
Date: Fri Mar 10 2017 - 08:41:54 EST


On Mon 2017-03-06 08:56:59, Pavel Machek wrote:
> omap3isp: add rest of CSI1 support
>
> CSI1 needs one more bit to be set up. Do just that.
>
> Signed-off-by: Pavel Machek <pavel@xxxxxx>
>
> ---
>
> Hmm. Looking at that... num_data_lanes probably should be modified in
> local variable, not globally like this. Should I do that?
>
> Anything else that needs fixing?

Ping? Feedback here would be nice. This is last "interesting" piece of
the hardware support...

Best regards,
Pavel

> index 24a9fc5..6feba36 100644
> --- a/drivers/media/platform/omap3isp/ispccp2.c
> +++ b/drivers/media/platform/omap3isp/ispccp2.c
> @@ -21,6 +23,7 @@
> #include <linux/mutex.h>
> #include <linux/uaccess.h>
> #include <linux/regulator/consumer.h>
> +#include <linux/regmap.h>
>
> #include "isp.h"
> #include "ispreg.h"
> @@ -1149,6 +1152,7 @@ int omap3isp_ccp2_init(struct isp_device *isp)
> "Could not get regulator vdds_csib\n");
> ccp2->vdds_csib = NULL;
> }
> + ccp2->phy = &isp->isp_csiphy2;
> } else if (isp->revision == ISP_REVISION_15_0) {
> ccp2->phy = &isp->isp_csiphy1;
> }
> diff --git a/drivers/media/platform/omap3isp/ispcsiphy.c b/drivers/media/platform/omap3isp/ispcsiphy.c
> index 50c0f64..cd6351b 100644
> --- a/drivers/media/platform/omap3isp/ispcsiphy.c
> +++ b/drivers/media/platform/omap3isp/ispcsiphy.c
> @@ -197,9 +200,10 @@ static int omap3isp_csiphy_config(struct isp_csiphy *phy)
> }
>
> if (buscfg->interface == ISP_INTERFACE_CCP2B_PHY1
> - || buscfg->interface == ISP_INTERFACE_CCP2B_PHY2)
> + || buscfg->interface == ISP_INTERFACE_CCP2B_PHY2) {
> lanes = &buscfg->bus.ccp2.lanecfg;
> - else
> + phy->num_data_lanes = 1;
> + } else
> lanes = &buscfg->bus.csi2.lanecfg;
>
> /* Clock and data lanes verification */
> @@ -302,13 +306,16 @@ int omap3isp_csiphy_acquire(struct isp_csiphy *phy)
> if (rval < 0)
> goto done;
>
> - rval = csiphy_set_power(phy, ISPCSI2_PHY_CFG_PWR_CMD_ON);
> - if (rval) {
> - regulator_disable(phy->vdd);
> - goto done;
> + if (phy->isp->revision == ISP_REVISION_15_0) {
> + rval = csiphy_set_power(phy, ISPCSI2_PHY_CFG_PWR_CMD_ON);
> + if (rval) {
> + regulator_disable(phy->vdd);
> + goto done;
> + }
> +
> + csiphy_power_autoswitch_enable(phy, true);
> }
>
> - csiphy_power_autoswitch_enable(phy, true);
> phy->phy_in_use = 1;
>
> done:
>



--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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