| Message ID | 20210429073050.21039-3-peng.fan@oss.nxp.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | soc: imx: gpcv2: support i.MX8MM | expand |
On 29.04.21 09:30, Peng Fan (OSS) wrote: > From: Lucas Stach <l.stach@pengutronix.de> > > As long as the power domain driver is active we want power control > over the domain (which is what the mapping bit requests), so there > is no point in whacking it for every power control action, simply > set the bit in driver probe and clear it when the driver is removed. > > Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de> > --- > drivers/soc/imx/gpcv2.c | 22 +++++++++++++--------- > 1 file changed, 13 insertions(+), 9 deletions(-) > > diff --git a/drivers/soc/imx/gpcv2.c b/drivers/soc/imx/gpcv2.c > index 512e6f4acafd..552d3e6bee52 100644 > --- a/drivers/soc/imx/gpcv2.c > +++ b/drivers/soc/imx/gpcv2.c > @@ -140,14 +140,11 @@ static int imx_gpc_pu_pgc_sw_pxx_req(struct generic_pm_domain *genpd, > int i, ret = 0; > u32 pxx_req; > > - regmap_update_bits(domain->regmap, GPC_PGC_CPU_MAPPING, > - domain->bits.map, domain->bits.map); > - > if (has_regulator && on) { > ret = regulator_enable(domain->regulator); > if (ret) { > dev_err(domain->dev, "failed to enable regulator\n"); > - goto unmap; > + return ret; > } > } > > @@ -203,9 +200,7 @@ static int imx_gpc_pu_pgc_sw_pxx_req(struct generic_pm_domain *genpd, > /* Preserve earlier error code */ > ret = ret ?: err; > } > -unmap: > - regmap_update_bits(domain->regmap, GPC_PGC_CPU_MAPPING, > - domain->bits.map, 0); > + > return ret; > } > > @@ -499,10 +494,13 @@ static int imx_pgc_domain_probe(struct platform_device *pdev) > if (ret) > return dev_err_probe(domain->dev, ret, "Failed to get domain's clocks\n"); > > + regmap_update_bits(domain->regmap, GPC_PGC_CPU_MAPPING, > + domain->bits.map, domain->bits.map); > + > ret = pm_genpd_init(&domain->genpd, NULL, true); > if (ret) { > dev_err(domain->dev, "Failed to init power domain\n"); > - goto out_put_clocks; > + goto out_domain_unmap; > } > > ret = of_genpd_add_provider_simple(domain->dev->of_node, > @@ -516,7 +514,9 @@ static int imx_pgc_domain_probe(struct platform_device *pdev) > > out_genpd_remove: > pm_genpd_remove(&domain->genpd); > -out_put_clocks: > +out_domain_unmap: > + regmap_update_bits(domain->regmap, GPC_PGC_CPU_MAPPING, > + domain->bits.map, 0); > imx_pgc_put_clocks(domain); > > return ret; > @@ -528,6 +528,10 @@ static int imx_pgc_domain_remove(struct platform_device *pdev) > > of_genpd_del_provider(domain->dev->of_node); > pm_genpd_remove(&domain->genpd); > + > + regmap_update_bits(domain->regmap, GPC_PGC_CPU_MAPPING, > + domain->bits.map, 0); > + > imx_pgc_put_clocks(domain); > > return 0; >
diff --git a/drivers/soc/imx/gpcv2.c b/drivers/soc/imx/gpcv2.c index 512e6f4acafd..552d3e6bee52 100644 --- a/drivers/soc/imx/gpcv2.c +++ b/drivers/soc/imx/gpcv2.c @@ -140,14 +140,11 @@ static int imx_gpc_pu_pgc_sw_pxx_req(struct generic_pm_domain *genpd, int i, ret = 0; u32 pxx_req; - regmap_update_bits(domain->regmap, GPC_PGC_CPU_MAPPING, - domain->bits.map, domain->bits.map); - if (has_regulator && on) { ret = regulator_enable(domain->regulator); if (ret) { dev_err(domain->dev, "failed to enable regulator\n"); - goto unmap; + return ret; } } @@ -203,9 +200,7 @@ static int imx_gpc_pu_pgc_sw_pxx_req(struct generic_pm_domain *genpd, /* Preserve earlier error code */ ret = ret ?: err; } -unmap: - regmap_update_bits(domain->regmap, GPC_PGC_CPU_MAPPING, - domain->bits.map, 0); + return ret; } @@ -499,10 +494,13 @@ static int imx_pgc_domain_probe(struct platform_device *pdev) if (ret) return dev_err_probe(domain->dev, ret, "Failed to get domain's clocks\n"); + regmap_update_bits(domain->regmap, GPC_PGC_CPU_MAPPING, + domain->bits.map, domain->bits.map); + ret = pm_genpd_init(&domain->genpd, NULL, true); if (ret) { dev_err(domain->dev, "Failed to init power domain\n"); - goto out_put_clocks; + goto out_domain_unmap; } ret = of_genpd_add_provider_simple(domain->dev->of_node, @@ -516,7 +514,9 @@ static int imx_pgc_domain_probe(struct platform_device *pdev) out_genpd_remove: pm_genpd_remove(&domain->genpd); -out_put_clocks: +out_domain_unmap: + regmap_update_bits(domain->regmap, GPC_PGC_CPU_MAPPING, + domain->bits.map, 0); imx_pgc_put_clocks(domain); return ret; @@ -528,6 +528,10 @@ static int imx_pgc_domain_remove(struct platform_device *pdev) of_genpd_del_provider(domain->dev->of_node); pm_genpd_remove(&domain->genpd); + + regmap_update_bits(domain->regmap, GPC_PGC_CPU_MAPPING, + domain->bits.map, 0); + imx_pgc_put_clocks(domain); return 0;