| Message ID | 20220109024910.2041763-8-bryan.odonoghue@linaro.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | [v2,1/8] media: dt-bindings: media: camss: Fixup vdda regulator descriptions sdm845 | expand |
Thanks for catching this Bryan! On Sun, 9 Jan 2022 at 03:47, Bryan O'Donoghue <bryan.odonoghue@linaro.org> wrote: > > Reviewing the RB3 schematic its clear that we have missed out on defining > one of the power-rails associated with the CSI PHY. > > Other PHYs such as the UFS, PCIe and USB connect to these rails and define > each regulator individually. > > This means if we were to switch off the other various PHYs which enable > these rails, the CAMSS would not appropriately power-on the CSI PHY. > > Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> > --- > drivers/media/platform/qcom/camss/camss.c | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > > diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c > index dcb37a739c95b..859b397912cc8 100644 > --- a/drivers/media/platform/qcom/camss/camss.c > +++ b/drivers/media/platform/qcom/camss/camss.c > @@ -543,7 +543,7 @@ static const struct resources csiphy_res_845[] = { > static const struct resources csid_res_845[] = { > /* CSID0 */ > { > - .regulators = { NULL }, > + .regulators = { "vdda-phy", "vdda-pll" }, > .clock = { "cpas_ahb", "cphy_rx_src", "slow_ahb_src", > "soc_ahb", "vfe0", "vfe0_src", > "vfe0_cphy_rx", "csi0", > @@ -563,7 +563,7 @@ static const struct resources csid_res_845[] = { > > /* CSID1 */ > { > - .regulators = { NULL }, > + .regulators = { "vdda-phy", "vdda-pll" }, > .clock = { "cpas_ahb", "cphy_rx_src", "slow_ahb_src", > "soc_ahb", "vfe1", "vfe1_src", > "vfe1_cphy_rx", "csi1", > @@ -583,7 +583,7 @@ static const struct resources csid_res_845[] = { > > /* CSID2 */ > { > - .regulators = { NULL }, > + .regulators = { "vdda-phy", "vdda-pll" }, > .clock = { "cpas_ahb", "cphy_rx_src", "slow_ahb_src", > "soc_ahb", "vfe_lite", "vfe_lite_src", > "vfe_lite_cphy_rx", "csi2", > -- > 2.33.0 > Reviewed-by: Robert Foss <robert.foss@linaro.org>
diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c index dcb37a739c95b..859b397912cc8 100644 --- a/drivers/media/platform/qcom/camss/camss.c +++ b/drivers/media/platform/qcom/camss/camss.c @@ -543,7 +543,7 @@ static const struct resources csiphy_res_845[] = { static const struct resources csid_res_845[] = { /* CSID0 */ { - .regulators = { NULL }, + .regulators = { "vdda-phy", "vdda-pll" }, .clock = { "cpas_ahb", "cphy_rx_src", "slow_ahb_src", "soc_ahb", "vfe0", "vfe0_src", "vfe0_cphy_rx", "csi0", @@ -563,7 +563,7 @@ static const struct resources csid_res_845[] = { /* CSID1 */ { - .regulators = { NULL }, + .regulators = { "vdda-phy", "vdda-pll" }, .clock = { "cpas_ahb", "cphy_rx_src", "slow_ahb_src", "soc_ahb", "vfe1", "vfe1_src", "vfe1_cphy_rx", "csi1", @@ -583,7 +583,7 @@ static const struct resources csid_res_845[] = { /* CSID2 */ { - .regulators = { NULL }, + .regulators = { "vdda-phy", "vdda-pll" }, .clock = { "cpas_ahb", "cphy_rx_src", "slow_ahb_src", "soc_ahb", "vfe_lite", "vfe_lite_src", "vfe_lite_cphy_rx", "csi2",
Reviewing the RB3 schematic its clear that we have missed out on defining one of the power-rails associated with the CSI PHY. Other PHYs such as the UFS, PCIe and USB connect to these rails and define each regulator individually. This means if we were to switch off the other various PHYs which enable these rails, the CAMSS would not appropriately power-on the CSI PHY. Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> --- drivers/media/platform/qcom/camss/camss.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)