On Sun, 9 Jan 2022 at 03:47, Bryan O'Donoghue <bryan.odonoghue@xxxxxxxxxx> wrote: > > Add the ability to enable or disable multiple regulators in bulk with > camss. This is useful for sm8250, sdm845 and it looks like sdm660 where we > have more than one CSI regulator to do at once. > > It should just work for standalone existing vdda regulators and parts which > don't have an explicitly defined CSI regulator. > > Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@xxxxxxxxxx> > Reported-by: Vladimir Zapolskiy <vladimir.zapolskiy@xxxxxxxxxx> > --- > .../media/platform/qcom/camss/camss-csid.c | 43 ++++++--- > .../media/platform/qcom/camss/camss-csid.h | 3 +- > drivers/media/platform/qcom/camss/camss.c | 94 +++++++++---------- > drivers/media/platform/qcom/camss/camss.h | 2 +- > 4 files changed, 79 insertions(+), 63 deletions(-) > > diff --git a/drivers/media/platform/qcom/camss/camss-csid.c b/drivers/media/platform/qcom/camss/camss-csid.c > index 32f82e471bae1..00ef35e7786d4 100644 > --- a/drivers/media/platform/qcom/camss/camss-csid.c > +++ b/drivers/media/platform/qcom/camss/camss-csid.c > @@ -173,7 +173,8 @@ static int csid_set_power(struct v4l2_subdev *sd, int on) > if (ret < 0) > return ret; > > - ret = csid->vdda ? regulator_enable(csid->vdda) : 0; > + ret = regulator_bulk_enable(csid->num_supplies, > + csid->supplies); > if (ret < 0) { > pm_runtime_put_sync(dev); > return ret; > @@ -181,16 +182,16 @@ static int csid_set_power(struct v4l2_subdev *sd, int on) > > ret = csid_set_clock_rates(csid); > if (ret < 0) { > - if (csid->vdda) > - regulator_disable(csid->vdda); > + regulator_bulk_disable(csid->num_supplies, > + csid->supplies); > pm_runtime_put_sync(dev); > return ret; > } > > ret = camss_enable_clocks(csid->nclocks, csid->clock, dev); > if (ret < 0) { > - if (csid->vdda) > - regulator_disable(csid->vdda); > + regulator_bulk_disable(csid->num_supplies, > + csid->supplies); > pm_runtime_put_sync(dev); > return ret; > } > @@ -201,8 +202,8 @@ static int csid_set_power(struct v4l2_subdev *sd, int on) > if (ret < 0) { > disable_irq(csid->irq); > camss_disable_clocks(csid->nclocks, csid->clock); > - if (csid->vdda) > - regulator_disable(csid->vdda); > + regulator_bulk_disable(csid->num_supplies, > + csid->supplies); > pm_runtime_put_sync(dev); > return ret; > } > @@ -211,7 +212,8 @@ static int csid_set_power(struct v4l2_subdev *sd, int on) > } else { > disable_irq(csid->irq); > camss_disable_clocks(csid->nclocks, csid->clock); > - ret = csid->vdda ? regulator_disable(csid->vdda) : 0; > + regulator_bulk_disable(csid->num_supplies, > + csid->supplies); > pm_runtime_put_sync(dev); > if (version == CAMSS_8250 || version == CAMSS_845) > vfe_put(vfe); > @@ -660,15 +662,28 @@ int msm_csid_subdev_init(struct camss *camss, struct csid_device *csid, > } > > /* Regulator */ > + for (i = 0; i < ARRAY_SIZE(res->regulators); i++) { > + if (res->regulators[i]) > + csid->num_supplies++; > + } With the cleanup that Bjorn suggested, and was submitted as v2 6/8, I would like to see the above snippet simplified to the below. csid->num_supplies = ARRAY_SIZE(res->regulators); > > - csid->vdda = NULL; > - if (res->regulator[0]) > - csid->vdda = devm_regulator_get(dev, res->regulator[0]); > - if (IS_ERR(csid->vdda)) { > - dev_err(dev, "could not get regulator\n"); > - return PTR_ERR(csid->vdda); > + if (csid->num_supplies) { > + csid->supplies = devm_kmalloc_array(camss->dev, > + csid->num_supplies, > + sizeof(csid->supplies), > + GFP_KERNEL); > + if (!csid->supplies) > + return -ENOMEM; > } > > + for (i = 0; i < csid->num_supplies; i++) > + csid->supplies[i].supply = res->regulators[i]; > + > + ret = devm_regulator_bulk_get(camss->dev, csid->num_supplies, > + csid->supplies); > + if (ret) > + return ret; > + > init_completion(&csid->reset_complete); > > return 0; > diff --git a/drivers/media/platform/qcom/camss/camss-csid.h b/drivers/media/platform/qcom/camss/camss-csid.h > index 17a50fa426be1..f06040e44c515 100644 > --- a/drivers/media/platform/qcom/camss/camss-csid.h > +++ b/drivers/media/platform/qcom/camss/camss-csid.h > @@ -152,7 +152,8 @@ struct csid_device { > char irq_name[30]; > struct camss_clock *clock; > int nclocks; > - struct regulator *vdda; > + struct regulator_bulk_data *supplies; > + int num_supplies; > struct completion reset_complete; > struct csid_testgen_config testgen; > struct csid_phy_config phy; > diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c > index d9905e737d88d..419c48c4f1d52 100644 > --- a/drivers/media/platform/qcom/camss/camss.c > +++ b/drivers/media/platform/qcom/camss/camss.c > @@ -34,7 +34,7 @@ > static const struct resources csiphy_res_8x16[] = { > /* CSIPHY0 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "top_ahb", "ispif_ahb", "ahb", "csiphy0_timer" }, > .clock_rate = { { 0 }, > { 0 }, > @@ -46,7 +46,7 @@ static const struct resources csiphy_res_8x16[] = { > > /* CSIPHY1 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "top_ahb", "ispif_ahb", "ahb", "csiphy1_timer" }, > .clock_rate = { { 0 }, > { 0 }, > @@ -60,7 +60,7 @@ static const struct resources csiphy_res_8x16[] = { > static const struct resources csid_res_8x16[] = { > /* CSID0 */ > { > - .regulator = { "vdda" }, > + .regulators = { "vdda" }, > .clock = { "top_ahb", "ispif_ahb", "csi0_ahb", "ahb", > "csi0", "csi0_phy", "csi0_pix", "csi0_rdi" }, > .clock_rate = { { 0 }, > @@ -77,7 +77,7 @@ static const struct resources csid_res_8x16[] = { > > /* CSID1 */ > { > - .regulator = { "vdda" }, > + .regulators = { "vdda" }, > .clock = { "top_ahb", "ispif_ahb", "csi1_ahb", "ahb", > "csi1", "csi1_phy", "csi1_pix", "csi1_rdi" }, > .clock_rate = { { 0 }, > @@ -107,7 +107,7 @@ static const struct resources_ispif ispif_res_8x16 = { > static const struct resources vfe_res_8x16[] = { > /* VFE0 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "top_ahb", "vfe0", "csi_vfe0", > "vfe_ahb", "vfe_axi", "ahb" }, > .clock_rate = { { 0 }, > @@ -129,7 +129,7 @@ static const struct resources vfe_res_8x16[] = { > static const struct resources csiphy_res_8x96[] = { > /* CSIPHY0 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "top_ahb", "ispif_ahb", "ahb", "csiphy0_timer" }, > .clock_rate = { { 0 }, > { 0 }, > @@ -141,7 +141,7 @@ static const struct resources csiphy_res_8x96[] = { > > /* CSIPHY1 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "top_ahb", "ispif_ahb", "ahb", "csiphy1_timer" }, > .clock_rate = { { 0 }, > { 0 }, > @@ -153,7 +153,7 @@ static const struct resources csiphy_res_8x96[] = { > > /* CSIPHY2 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "top_ahb", "ispif_ahb", "ahb", "csiphy2_timer" }, > .clock_rate = { { 0 }, > { 0 }, > @@ -167,7 +167,7 @@ static const struct resources csiphy_res_8x96[] = { > static const struct resources csid_res_8x96[] = { > /* CSID0 */ > { > - .regulator = { "vdda" }, > + .regulators = { "vdda" }, > .clock = { "top_ahb", "ispif_ahb", "csi0_ahb", "ahb", > "csi0", "csi0_phy", "csi0_pix", "csi0_rdi" }, > .clock_rate = { { 0 }, > @@ -184,7 +184,7 @@ static const struct resources csid_res_8x96[] = { > > /* CSID1 */ > { > - .regulator = { "vdda" }, > + .regulators = { "vdda" }, > .clock = { "top_ahb", "ispif_ahb", "csi1_ahb", "ahb", > "csi1", "csi1_phy", "csi1_pix", "csi1_rdi" }, > .clock_rate = { { 0 }, > @@ -201,7 +201,7 @@ static const struct resources csid_res_8x96[] = { > > /* CSID2 */ > { > - .regulator = { "vdda" }, > + .regulators = { "vdda" }, > .clock = { "top_ahb", "ispif_ahb", "csi2_ahb", "ahb", > "csi2", "csi2_phy", "csi2_pix", "csi2_rdi" }, > .clock_rate = { { 0 }, > @@ -218,7 +218,7 @@ static const struct resources csid_res_8x96[] = { > > /* CSID3 */ > { > - .regulator = { "vdda" }, > + .regulators = { "vdda" }, > .clock = { "top_ahb", "ispif_ahb", "csi3_ahb", "ahb", > "csi3", "csi3_phy", "csi3_pix", "csi3_rdi" }, > .clock_rate = { { 0 }, > @@ -249,7 +249,7 @@ static const struct resources_ispif ispif_res_8x96 = { > static const struct resources vfe_res_8x96[] = { > /* VFE0 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "top_ahb", "ahb", "vfe0", "csi_vfe0", "vfe_ahb", > "vfe0_ahb", "vfe_axi", "vfe0_stream"}, > .clock_rate = { { 0 }, > @@ -267,7 +267,7 @@ static const struct resources vfe_res_8x96[] = { > > /* VFE1 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "top_ahb", "ahb", "vfe1", "csi_vfe1", "vfe_ahb", > "vfe1_ahb", "vfe_axi", "vfe1_stream"}, > .clock_rate = { { 0 }, > @@ -287,7 +287,7 @@ static const struct resources vfe_res_8x96[] = { > static const struct resources csiphy_res_660[] = { > /* CSIPHY0 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "top_ahb", "ispif_ahb", "ahb", "csiphy0_timer", > "csi0_phy", "csiphy_ahb2crif" }, > .clock_rate = { { 0 }, > @@ -301,7 +301,7 @@ static const struct resources csiphy_res_660[] = { > > /* CSIPHY1 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "top_ahb", "ispif_ahb", "ahb", "csiphy1_timer", > "csi1_phy", "csiphy_ahb2crif" }, > .clock_rate = { { 0 }, > @@ -315,7 +315,7 @@ static const struct resources csiphy_res_660[] = { > > /* CSIPHY2 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "top_ahb", "ispif_ahb", "ahb", "csiphy2_timer", > "csi2_phy", "csiphy_ahb2crif" }, > .clock_rate = { { 0 }, > @@ -331,7 +331,7 @@ static const struct resources csiphy_res_660[] = { > static const struct resources csid_res_660[] = { > /* CSID0 */ > { > - .regulator = { "vdda", "vdd_sec" }, > + .regulators = { "vdda", "vdd_sec" }, > .clock = { "top_ahb", "ispif_ahb", "csi0_ahb", "ahb", > "csi0", "csi0_phy", "csi0_pix", "csi0_rdi", > "cphy_csid0" }, > @@ -351,7 +351,7 @@ static const struct resources csid_res_660[] = { > > /* CSID1 */ > { > - .regulator = { "vdda", "vdd_sec" }, > + .regulators = { "vdda", "vdd_sec" }, > .clock = { "top_ahb", "ispif_ahb", "csi1_ahb", "ahb", > "csi1", "csi1_phy", "csi1_pix", "csi1_rdi", > "cphy_csid1" }, > @@ -371,7 +371,7 @@ static const struct resources csid_res_660[] = { > > /* CSID2 */ > { > - .regulator = { "vdda", "vdd_sec" }, > + .regulators = { "vdda", "vdd_sec" }, > .clock = { "top_ahb", "ispif_ahb", "csi2_ahb", "ahb", > "csi2", "csi2_phy", "csi2_pix", "csi2_rdi", > "cphy_csid2" }, > @@ -391,7 +391,7 @@ static const struct resources csid_res_660[] = { > > /* CSID3 */ > { > - .regulator = { "vdda", "vdd_sec" }, > + .regulators = { "vdda", "vdd_sec" }, > .clock = { "top_ahb", "ispif_ahb", "csi3_ahb", "ahb", > "csi3", "csi3_phy", "csi3_pix", "csi3_rdi", > "cphy_csid3" }, > @@ -425,7 +425,7 @@ static const struct resources_ispif ispif_res_660 = { > static const struct resources vfe_res_660[] = { > /* VFE0 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "throttle_axi", "top_ahb", "ahb", "vfe0", > "csi_vfe0", "vfe_ahb", "vfe0_ahb", "vfe_axi", > "vfe0_stream"}, > @@ -446,7 +446,7 @@ static const struct resources vfe_res_660[] = { > > /* VFE1 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "throttle_axi", "top_ahb", "ahb", "vfe1", > "csi_vfe1", "vfe_ahb", "vfe1_ahb", "vfe_axi", > "vfe1_stream"}, > @@ -469,7 +469,7 @@ static const struct resources vfe_res_660[] = { > static const struct resources csiphy_res_845[] = { > /* CSIPHY0 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "camnoc_axi", "soc_ahb", "slow_ahb_src", > "cpas_ahb", "cphy_rx_src", "csiphy0", > "csiphy0_timer_src", "csiphy0_timer" }, > @@ -487,7 +487,7 @@ static const struct resources csiphy_res_845[] = { > > /* CSIPHY1 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "camnoc_axi", "soc_ahb", "slow_ahb_src", > "cpas_ahb", "cphy_rx_src", "csiphy1", > "csiphy1_timer_src", "csiphy1_timer" }, > @@ -505,7 +505,7 @@ static const struct resources csiphy_res_845[] = { > > /* CSIPHY2 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "camnoc_axi", "soc_ahb", "slow_ahb_src", > "cpas_ahb", "cphy_rx_src", "csiphy2", > "csiphy2_timer_src", "csiphy2_timer" }, > @@ -523,7 +523,7 @@ static const struct resources csiphy_res_845[] = { > > /* CSIPHY3 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "camnoc_axi", "soc_ahb", "slow_ahb_src", > "cpas_ahb", "cphy_rx_src", "csiphy3", > "csiphy3_timer_src", "csiphy3_timer" }, > @@ -543,7 +543,7 @@ static const struct resources csiphy_res_845[] = { > static const struct resources csid_res_845[] = { > /* CSID0 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .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 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .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 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "cpas_ahb", "cphy_rx_src", "slow_ahb_src", > "soc_ahb", "vfe_lite", "vfe_lite_src", > "vfe_lite_cphy_rx", "csi2", > @@ -605,7 +605,7 @@ static const struct resources csid_res_845[] = { > static const struct resources vfe_res_845[] = { > /* VFE0 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "camnoc_axi", "cpas_ahb", "slow_ahb_src", > "soc_ahb", "vfe0", "vfe0_axi", > "vfe0_src", "csi0", > @@ -625,7 +625,7 @@ static const struct resources vfe_res_845[] = { > > /* VFE1 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "camnoc_axi", "cpas_ahb", "slow_ahb_src", > "soc_ahb", "vfe1", "vfe1_axi", > "vfe1_src", "csi1", > @@ -645,7 +645,7 @@ static const struct resources vfe_res_845[] = { > > /* VFE-lite */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "camnoc_axi", "cpas_ahb", "slow_ahb_src", > "soc_ahb", "vfe_lite", > "vfe_lite_src", "csi2", > @@ -666,7 +666,7 @@ static const struct resources vfe_res_845[] = { > static const struct resources csiphy_res_8250[] = { > /* CSIPHY0 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "csiphy0", "csiphy0_timer" }, > .clock_rate = { { 400000000 }, > { 300000000 } }, > @@ -675,7 +675,7 @@ static const struct resources csiphy_res_8250[] = { > }, > /* CSIPHY1 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "csiphy1", "csiphy1_timer" }, > .clock_rate = { { 400000000 }, > { 300000000 } }, > @@ -684,7 +684,7 @@ static const struct resources csiphy_res_8250[] = { > }, > /* CSIPHY2 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "csiphy2", "csiphy2_timer" }, > .clock_rate = { { 400000000 }, > { 300000000 } }, > @@ -693,7 +693,7 @@ static const struct resources csiphy_res_8250[] = { > }, > /* CSIPHY3 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "csiphy3", "csiphy3_timer" }, > .clock_rate = { { 400000000 }, > { 300000000 } }, > @@ -702,7 +702,7 @@ static const struct resources csiphy_res_8250[] = { > }, > /* CSIPHY4 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "csiphy4", "csiphy4_timer" }, > .clock_rate = { { 400000000 }, > { 300000000 } }, > @@ -711,7 +711,7 @@ static const struct resources csiphy_res_8250[] = { > }, > /* CSIPHY5 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "csiphy5", "csiphy5_timer" }, > .clock_rate = { { 400000000 }, > { 300000000 } }, > @@ -723,7 +723,7 @@ static const struct resources csiphy_res_8250[] = { > static const struct resources csid_res_8250[] = { > /* CSID0 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "vfe0_csid", "vfe0_cphy_rx", "vfe0", "vfe0_areg", "vfe0_ahb" }, > .clock_rate = { { 400000000 }, > { 400000000 }, > @@ -735,7 +735,7 @@ static const struct resources csid_res_8250[] = { > }, > /* CSID1 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "vfe1_csid", "vfe1_cphy_rx", "vfe1", "vfe1_areg", "vfe1_ahb" }, > .clock_rate = { { 400000000 }, > { 400000000 }, > @@ -747,7 +747,7 @@ static const struct resources csid_res_8250[] = { > }, > /* CSID2 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "vfe_lite_csid", "vfe_lite_cphy_rx", "vfe_lite", "vfe_lite_ahb" }, > .clock_rate = { { 400000000 }, > { 400000000 }, > @@ -758,7 +758,7 @@ static const struct resources csid_res_8250[] = { > }, > /* CSID3 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "vfe_lite_csid", "vfe_lite_cphy_rx", "vfe_lite", "vfe_lite_ahb" }, > .clock_rate = { { 400000000 }, > { 400000000 }, > @@ -772,7 +772,7 @@ static const struct resources csid_res_8250[] = { > static const struct resources vfe_res_8250[] = { > /* VFE0 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "camnoc_axi_src", "slow_ahb_src", "cpas_ahb", > "camnoc_axi", "vfe0_ahb", "vfe0_areg", "vfe0", > "vfe0_axi", "cam_hf_axi" }, > @@ -790,7 +790,7 @@ static const struct resources vfe_res_8250[] = { > }, > /* VFE1 */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "camnoc_axi_src", "slow_ahb_src", "cpas_ahb", > "camnoc_axi", "vfe1_ahb", "vfe1_areg", "vfe1", > "vfe1_axi", "cam_hf_axi" }, > @@ -808,7 +808,7 @@ static const struct resources vfe_res_8250[] = { > }, > /* VFE2 (lite) */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "camnoc_axi_src", "slow_ahb_src", "cpas_ahb", > "camnoc_axi", "vfe_lite_ahb", "vfe_lite_axi", > "vfe_lite", "cam_hf_axi" }, > @@ -825,7 +825,7 @@ static const struct resources vfe_res_8250[] = { > }, > /* VFE3 (lite) */ > { > - .regulator = { NULL }, > + .regulators = { NULL }, > .clock = { "camnoc_axi_src", "slow_ahb_src", "cpas_ahb", > "camnoc_axi", "vfe_lite_ahb", "vfe_lite_axi", > "vfe_lite", "cam_hf_axi" }, > diff --git a/drivers/media/platform/qcom/camss/camss.h b/drivers/media/platform/qcom/camss/camss.h > index 9c644e638a948..c9b3e0df5be8f 100644 > --- a/drivers/media/platform/qcom/camss/camss.h > +++ b/drivers/media/platform/qcom/camss/camss.h > @@ -42,7 +42,7 @@ > #define CAMSS_RES_MAX 17 > > struct resources { > - char *regulator[CAMSS_RES_MAX]; > + char *regulators[CAMSS_RES_MAX]; > char *clock[CAMSS_RES_MAX]; > u32 clock_rate[CAMSS_RES_MAX][CAMSS_RES_MAX]; > char *reg[CAMSS_RES_MAX]; With the above nit fixed, please add my r-b. Reviewed-by: Robert Foss <robert.foss@xxxxxxxxxx>