From: Lucas Stach <l.stach@pengutronix.de> To: Shawn Guo <shawnguo@kernel.org>, Rob Herring <robh+dt@kernel.org> Cc: NXP Linux Team <linux-imx@nxp.com>, Fabio Estevam <festevam@gmail.com>, Frieder Schrempf <frieder.schrempf@kontron.de>, Marek Vasut <marex@denx.de>, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, kernel@pengutronix.de, patchwork-lst@pengutronix.de Subject: [PATCH 05/11] soc: imx: gpcv2: add runtime PM support for power-domains Date: Wed, 30 Sep 2020 17:50:00 +0200 [thread overview] Message-ID: <20200930155006.535712-6-l.stach@pengutronix.de> (raw) In-Reply-To: <20200930155006.535712-1-l.stach@pengutronix.de> This allows to nest domains into other power domains and have the parent domain powered up/down as required by the child domains. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> --- drivers/soc/imx/gpcv2.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/drivers/soc/imx/gpcv2.c b/drivers/soc/imx/gpcv2.c index 3cfb8b51c23e..5bb7b1cc7c10 100644 --- a/drivers/soc/imx/gpcv2.c +++ b/drivers/soc/imx/gpcv2.c @@ -12,6 +12,7 @@ #include <linux/of_device.h> #include <linux/platform_device.h> #include <linux/pm_domain.h> +#include <linux/pm_runtime.h> #include <linux/regmap.h> #include <linux/regulator/consumer.h> #include <linux/sizes.h> @@ -143,11 +144,17 @@ static int imx_pgc_power_up(struct generic_pm_domain *genpd) u32 reg_val; int i, ret; + ret = pm_runtime_get_sync(domain->dev); + if (ret) { + pm_runtime_put_noidle(domain->dev); + return ret; + } + if (!IS_ERR(domain->regulator)) { ret = regulator_enable(domain->regulator); if (ret) { dev_err(domain->dev, "failed to enable regulator\n"); - return ret; + goto out_put_pm; } } @@ -205,6 +212,8 @@ static int imx_pgc_power_up(struct generic_pm_domain *genpd) clk_disable_unprepare(domain->clk[i]); if (!IS_ERR(domain->regulator)) regulator_disable(domain->regulator); +out_put_pm: + pm_runtime_put(domain->dev); return ret; } @@ -270,6 +279,8 @@ static int imx_pgc_power_down(struct generic_pm_domain *genpd) } } + pm_runtime_put(domain->dev); + return 0; out_clk_disable: @@ -567,6 +578,8 @@ static int imx_pgc_domain_probe(struct platform_device *pdev) return ret; } + pm_runtime_enable(domain->dev); + regmap_update_bits(domain->regmap, GPC_PGC_CPU_MAPPING, domain->bits.map, domain->bits.map); @@ -590,6 +603,7 @@ static int imx_pgc_domain_probe(struct platform_device *pdev) out_domain_unmap: regmap_update_bits(domain->regmap, GPC_PGC_CPU_MAPPING, domain->bits.map, 0); + pm_runtime_disable(domain->dev); imx_pgc_put_clocks(domain); return ret; @@ -605,6 +619,8 @@ static int imx_pgc_domain_remove(struct platform_device *pdev) regmap_update_bits(domain->regmap, GPC_PGC_CPU_MAPPING, domain->bits.map, 0); + pm_runtime_disable(domain->dev); + imx_pgc_put_clocks(domain); return 0; -- 2.20.1
WARNING: multiple messages have this Message-ID (diff)
From: Lucas Stach <l.stach@pengutronix.de> To: Shawn Guo <shawnguo@kernel.org>, Rob Herring <robh+dt@kernel.org> Cc: Marek Vasut <marex@denx.de>, devicetree@vger.kernel.org, Frieder Schrempf <frieder.schrempf@kontron.de>, patchwork-lst@pengutronix.de, NXP Linux Team <linux-imx@nxp.com>, kernel@pengutronix.de, Fabio Estevam <festevam@gmail.com>, linux-arm-kernel@lists.infradead.org Subject: [PATCH 05/11] soc: imx: gpcv2: add runtime PM support for power-domains Date: Wed, 30 Sep 2020 17:50:00 +0200 [thread overview] Message-ID: <20200930155006.535712-6-l.stach@pengutronix.de> (raw) In-Reply-To: <20200930155006.535712-1-l.stach@pengutronix.de> This allows to nest domains into other power domains and have the parent domain powered up/down as required by the child domains. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> --- drivers/soc/imx/gpcv2.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/drivers/soc/imx/gpcv2.c b/drivers/soc/imx/gpcv2.c index 3cfb8b51c23e..5bb7b1cc7c10 100644 --- a/drivers/soc/imx/gpcv2.c +++ b/drivers/soc/imx/gpcv2.c @@ -12,6 +12,7 @@ #include <linux/of_device.h> #include <linux/platform_device.h> #include <linux/pm_domain.h> +#include <linux/pm_runtime.h> #include <linux/regmap.h> #include <linux/regulator/consumer.h> #include <linux/sizes.h> @@ -143,11 +144,17 @@ static int imx_pgc_power_up(struct generic_pm_domain *genpd) u32 reg_val; int i, ret; + ret = pm_runtime_get_sync(domain->dev); + if (ret) { + pm_runtime_put_noidle(domain->dev); + return ret; + } + if (!IS_ERR(domain->regulator)) { ret = regulator_enable(domain->regulator); if (ret) { dev_err(domain->dev, "failed to enable regulator\n"); - return ret; + goto out_put_pm; } } @@ -205,6 +212,8 @@ static int imx_pgc_power_up(struct generic_pm_domain *genpd) clk_disable_unprepare(domain->clk[i]); if (!IS_ERR(domain->regulator)) regulator_disable(domain->regulator); +out_put_pm: + pm_runtime_put(domain->dev); return ret; } @@ -270,6 +279,8 @@ static int imx_pgc_power_down(struct generic_pm_domain *genpd) } } + pm_runtime_put(domain->dev); + return 0; out_clk_disable: @@ -567,6 +578,8 @@ static int imx_pgc_domain_probe(struct platform_device *pdev) return ret; } + pm_runtime_enable(domain->dev); + regmap_update_bits(domain->regmap, GPC_PGC_CPU_MAPPING, domain->bits.map, domain->bits.map); @@ -590,6 +603,7 @@ static int imx_pgc_domain_probe(struct platform_device *pdev) out_domain_unmap: regmap_update_bits(domain->regmap, GPC_PGC_CPU_MAPPING, domain->bits.map, 0); + pm_runtime_disable(domain->dev); imx_pgc_put_clocks(domain); return ret; @@ -605,6 +619,8 @@ static int imx_pgc_domain_remove(struct platform_device *pdev) regmap_update_bits(domain->regmap, GPC_PGC_CPU_MAPPING, domain->bits.map, 0); + pm_runtime_disable(domain->dev); + imx_pgc_put_clocks(domain); return 0; -- 2.20.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-09-30 15:50 UTC|newest] Thread overview: 118+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-09-30 15:49 [PATCH 00/11] i.MX8MM power domain support Lucas Stach 2020-09-30 15:49 ` Lucas Stach 2020-09-30 15:49 ` [PATCH 01/11] soc: imx: gpcv2: move to more ideomatic error handling in probe Lucas Stach 2020-09-30 15:49 ` Lucas Stach 2020-09-30 16:04 ` Marek Vasut 2020-09-30 16:04 ` Marek Vasut 2020-09-30 15:49 ` [PATCH 02/11] soc: imx: gpcv2: move domain mapping to domain driver probe Lucas Stach 2020-09-30 15:49 ` Lucas Stach 2020-09-30 16:07 ` Marek Vasut 2020-09-30 16:07 ` Marek Vasut 2020-09-30 15:49 ` [PATCH 03/11] soc: imx: gpcv2: split power up and power down sequence control Lucas Stach 2020-09-30 15:49 ` Lucas Stach 2020-09-30 16:10 ` Marek Vasut 2020-09-30 16:10 ` Marek Vasut 2020-09-30 15:49 ` [PATCH 04/11] soc: imx: gpcv2: wait for ADB400 handshake Lucas Stach 2020-09-30 15:49 ` Lucas Stach 2020-09-30 16:11 ` Marek Vasut 2020-09-30 16:11 ` Marek Vasut 2020-09-30 16:19 ` Lucas Stach 2020-09-30 16:19 ` Lucas Stach 2020-09-30 16:23 ` Marek Vasut 2020-09-30 16:23 ` Marek Vasut 2020-10-09 3:05 ` Jacky Bai 2020-10-09 3:05 ` Jacky Bai 2020-10-09 7:27 ` Marek Vasut 2020-10-09 7:27 ` Marek Vasut 2020-10-09 7:51 ` Jacky Bai 2020-10-09 7:51 ` Jacky Bai 2020-10-09 8:19 ` Marek Vasut 2020-10-09 8:19 ` Marek Vasut 2020-09-30 15:50 ` Lucas Stach [this message] 2020-09-30 15:50 ` [PATCH 05/11] soc: imx: gpcv2: add runtime PM support for power-domains Lucas Stach 2020-09-30 16:14 ` Marek Vasut 2020-09-30 16:14 ` Marek Vasut 2020-09-30 16:20 ` Lucas Stach 2020-09-30 16:20 ` Lucas Stach 2020-09-30 15:50 ` [PATCH 06/11] soc: imx: gpcv2: allow domains without power-sequence control Lucas Stach 2020-09-30 15:50 ` Lucas Stach 2020-10-09 7:54 ` Jacky Bai 2020-10-09 7:54 ` Jacky Bai 2020-10-09 7:57 ` Jacky Bai 2020-10-09 7:57 ` Jacky Bai 2020-09-30 15:50 ` [PATCH 07/11] soc: imx: gpcv2: add support for optional resets Lucas Stach 2020-09-30 15:50 ` Lucas Stach 2020-09-30 16:15 ` Marek Vasut 2020-09-30 16:15 ` Marek Vasut 2020-09-30 16:23 ` Lucas Stach 2020-09-30 16:23 ` Lucas Stach 2020-09-30 16:30 ` Marek Vasut 2020-09-30 16:30 ` Marek Vasut 2020-09-30 16:34 ` Lucas Stach 2020-09-30 16:34 ` Lucas Stach 2020-09-30 16:38 ` Marek Vasut 2020-09-30 16:38 ` Marek Vasut 2020-10-01 8:59 ` Krzysztof Kozlowski 2020-10-01 8:59 ` Krzysztof Kozlowski 2020-10-06 19:42 ` Rob Herring 2020-10-06 19:42 ` Rob Herring 2020-09-30 15:50 ` [PATCH 08/11] dt-bindings: add defines for i.MX8MM power domains Lucas Stach 2020-09-30 15:50 ` Lucas Stach 2020-10-01 8:54 ` Krzysztof Kozlowski 2020-10-01 8:54 ` Krzysztof Kozlowski 2020-10-06 19:47 ` Rob Herring 2020-10-06 19:47 ` Rob Herring 2020-09-30 15:50 ` [PATCH 09/11] soc: imx: gpcv2: add support " Lucas Stach 2020-09-30 15:50 ` Lucas Stach 2020-09-30 16:18 ` Marek Vasut 2020-09-30 16:18 ` Marek Vasut 2020-09-30 15:50 ` [PATCH 10/11] arm64: dts: imx8mm: add GPC node and " Lucas Stach 2020-09-30 15:50 ` Lucas Stach 2020-09-30 16:20 ` Marek Vasut 2020-09-30 16:20 ` Marek Vasut 2020-10-01 8:51 ` Krzysztof Kozlowski 2020-10-01 8:51 ` Krzysztof Kozlowski 2020-10-23 13:22 ` Adam Ford 2020-10-23 13:22 ` Adam Ford 2020-10-23 14:39 ` Jacky Bai 2020-10-23 14:39 ` Jacky Bai 2020-10-26 10:56 ` Abel Vesa 2020-10-26 10:56 ` Abel Vesa 2020-10-26 11:01 ` Abel Vesa 2020-10-26 11:01 ` Abel Vesa 2020-10-26 11:13 ` Adam Ford 2020-10-26 11:13 ` Adam Ford 2020-10-26 11:02 ` Lucas Stach 2020-10-26 11:02 ` Lucas Stach 2020-09-30 15:50 ` [PATCH 11/11] arm64: dts: imx8mm: put USB controllers into power-domains Lucas Stach 2020-09-30 15:50 ` Lucas Stach 2020-10-01 7:46 ` [PATCH 00/11] i.MX8MM power domain support Frieder Schrempf 2020-10-01 7:46 ` Frieder Schrempf 2020-10-03 18:03 ` Adam Ford 2020-10-03 18:03 ` Adam Ford [not found] ` <CAHCN7xKjWEwQr9y0QLrR6KVT=ut=v=coqt4beAvrz1kQSGbX1g@mail.gmail.com> 2020-10-03 18:08 ` Marek Vasut 2020-10-03 18:08 ` Marek Vasut 2020-10-03 18:11 ` Adam Ford 2020-10-03 18:11 ` Adam Ford 2020-10-08 20:47 ` Adam Ford 2020-10-08 20:47 ` Adam Ford 2020-10-09 3:00 ` Jacky Bai 2020-10-09 3:00 ` Jacky Bai 2020-10-09 11:12 ` Lucas Stach 2020-10-09 11:12 ` Lucas Stach 2020-10-09 12:57 ` Adam Ford 2020-10-09 12:57 ` Adam Ford 2020-10-10 2:16 ` Jacky Bai 2020-10-10 2:16 ` Jacky Bai 2020-10-13 18:26 ` Lucas Stach 2020-10-13 18:26 ` Lucas Stach 2020-10-14 1:23 ` Peng Fan 2020-10-14 1:23 ` Peng Fan 2020-10-22 8:24 ` Lucas Stach 2020-10-22 8:24 ` Lucas Stach 2020-10-22 16:36 ` Fabio Estevam 2020-10-22 16:36 ` Fabio Estevam 2020-10-28 13:50 ` Peng Fan 2020-10-28 13:50 ` Peng Fan 2020-10-31 13:56 ` Adam Ford 2020-10-31 13:56 ` Adam Ford
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