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

From: Pavel Machek
Date: Wed Feb 15 2017 - 05:23:09 EST


Hi!

> > + if (enable) {
> > + csirxfe = OMAP343X_CONTROL_CSIRXFE_PWRDNZ |
> > + OMAP343X_CONTROL_CSIRXFE_RESET;
> > +
> > + if (buscfg->phy_layer)
> > + csirxfe |= OMAP343X_CONTROL_CSIRXFE_SELFORM;
> > +
> > + if (buscfg->strobe_clk_pol)
> > + csirxfe |= OMAP343X_CONTROL_CSIRXFE_CSIB_INV;
> > + } else
> > + csirxfe = 0;
>
> You need curly braces for the else statement too.
>
> > +
> > + regmap_write(isp->syscon, isp->syscon_offset, csirxfe);
>
> Isn't this already configured by csiphy_routing_cfg_3430(), called through
> omap3isp_csiphy_acquire() ? You'll need to add support for the strobe/clock
> polarity there, but the rest should already be handled.

It seems csiphy_routing_cfg_3430 is not called at all. I added
printks, but they don't trigger. If you have an idea what is going on
there, it would help...
Pavel

diff --git a/drivers/media/platform/omap3isp/ispcsiphy.c b/drivers/media/platform/omap3isp/ispcsiphy.c
index 6b814e1..fe9303a 100644
--- a/drivers/media/platform/omap3isp/ispcsiphy.c
+++ b/drivers/media/platform/omap3isp/ispcsiphy.c
@@ -30,6 +30,8 @@ static void csiphy_routing_cfg_3630(struct isp_csiphy *phy,
u32 reg;
u32 shift, mode;

+ printk("routing cfg 3630: iface %d, %d\n", iface, ISP_INTERFACE_CCP2B_PHY1);
+
regmap_read(phy->isp->syscon, phy->isp->syscon_offset, &reg);

switch (iface) {
@@ -74,6 +76,9 @@ static void csiphy_routing_cfg_3430(struct isp_csiphy *phy, u32 iface, bool on,
u32 csirxfe = OMAP343X_CONTROL_CSIRXFE_PWRDNZ
| OMAP343X_CONTROL_CSIRXFE_RESET;

+ /* FIXME: can this be used instead of if (isp->revision) in ispccp2.c? */
+
+ printk("routing cfg: iface %d, %d\n", iface, ISP_INTERFACE_CCP2B_PHY1);
/* Only the CCP2B on PHY1 is configurable. */
if (iface != ISP_INTERFACE_CCP2B_PHY1)
return;
@@ -105,6 +110,7 @@ static void csiphy_routing_cfg(struct isp_csiphy *phy,
enum isp_interface_type iface, bool on,
bool ccp2_strobe)
{
+ printk("csiphy_routing_cfg\n");
if (phy->isp->phy_type == ISP_PHY_TYPE_3630 && on)
return csiphy_routing_cfg_3630(phy, iface, ccp2_strobe);
if (phy->isp->phy_type == ISP_PHY_TYPE_3430)



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

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