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From: Nicolas Boichat <drinkcat@chromium.org>
To: Rob Herring <robh+dt@kernel.org>
Cc: David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
	Mark Rutland <mark.rutland@arm.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Tomeu Vizoso <tomeu.vizoso@collabora.com>,
	Steven Price <steven.price@arm.com>,
	Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>,
	Liam Girdwood <lgirdwood@gmail.com>,
	Mark Brown <broonie@kernel.org>,
	dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-mediatek@lists.infradead.org, hsinyi@chromium.org
Subject: [PATCH v2 4/7] drm/panfrost: Add support for a second regulator for the GPU
Date: Wed,  8 Jan 2020 13:23:34 +0800	[thread overview]
Message-ID: <20200108052337.65916-5-drinkcat@chromium.org> (raw)
In-Reply-To: <20200108052337.65916-1-drinkcat@chromium.org>

Some GPUs, namely, the bifrost/g72 part on MT8183, have a second
regulator for their SRAM, let's add support for that.

Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
---
 drivers/gpu/drm/panfrost/panfrost_device.c | 21 +++++++++++++++++++++
 drivers/gpu/drm/panfrost/panfrost_device.h |  1 +
 2 files changed, 22 insertions(+)

diff --git a/drivers/gpu/drm/panfrost/panfrost_device.c b/drivers/gpu/drm/panfrost/panfrost_device.c
index 238fb6d54df4732..a0b0a6fef8b4e63 100644
--- a/drivers/gpu/drm/panfrost/panfrost_device.c
+++ b/drivers/gpu/drm/panfrost/panfrost_device.c
@@ -102,12 +102,33 @@ static int panfrost_regulator_init(struct panfrost_device *pfdev)
 		return ret;
 	}
 
+	pfdev->regulator_sram = devm_regulator_get_optional(pfdev->dev, "sram");
+	if (IS_ERR(pfdev->regulator_sram)) {
+		ret = PTR_ERR(pfdev->regulator_sram);
+		dev_err(pfdev->dev, "failed to get SRAM regulator: %d\n", ret);
+		goto err;
+	}
+
+	if (pfdev->regulator_sram) {
+		ret = regulator_enable(pfdev->regulator_sram);
+		if (ret < 0) {
+			dev_err(pfdev->dev,
+				"failed to enable SRAM regulator: %d\n", ret);
+			goto err;
+		}
+	}
+
 	return 0;
+
+err:
+	regulator_disable(pfdev->regulator);
+	return ret;
 }
 
 static void panfrost_regulator_fini(struct panfrost_device *pfdev)
 {
 	regulator_disable(pfdev->regulator);
+	regulator_disable(pfdev->regulator_sram);
 }
 
 int panfrost_device_init(struct panfrost_device *pfdev)
diff --git a/drivers/gpu/drm/panfrost/panfrost_device.h b/drivers/gpu/drm/panfrost/panfrost_device.h
index 06713811b92cdf7..a124334d69e7e93 100644
--- a/drivers/gpu/drm/panfrost/panfrost_device.h
+++ b/drivers/gpu/drm/panfrost/panfrost_device.h
@@ -60,6 +60,7 @@ struct panfrost_device {
 	struct clk *clock;
 	struct clk *bus_clock;
 	struct regulator *regulator;
+	struct regulator *regulator_sram;
 	struct reset_control *rstc;
 
 	struct panfrost_features features;
-- 
2.24.1.735.g03f4e72817-goog


WARNING: multiple messages have this Message-ID
From: Nicolas Boichat <drinkcat@chromium.org>
To: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>,
	devicetree@vger.kernel.org,
	Tomeu Vizoso <tomeu.vizoso@collabora.com>,
	David Airlie <airlied@linux.ie>,
	linux-kernel@vger.kernel.org, Liam Girdwood <lgirdwood@gmail.com>,
	dri-devel@lists.freedesktop.org,
	Steven Price <steven.price@arm.com>,
	Mark Brown <broonie@kernel.org>,
	linux-mediatek@lists.infradead.org,
	Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>,
	Daniel Vetter <daniel@ffwll.ch>,
	hsinyi@chromium.org, Matthias Brugger <matthias.bgg@gmail.com>,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 4/7] drm/panfrost: Add support for a second regulator for the GPU
Date: Wed,  8 Jan 2020 13:23:34 +0800	[thread overview]
Message-ID: <20200108052337.65916-5-drinkcat@chromium.org> (raw)
In-Reply-To: <20200108052337.65916-1-drinkcat@chromium.org>

Some GPUs, namely, the bifrost/g72 part on MT8183, have a second
regulator for their SRAM, let's add support for that.

Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
---
 drivers/gpu/drm/panfrost/panfrost_device.c | 21 +++++++++++++++++++++
 drivers/gpu/drm/panfrost/panfrost_device.h |  1 +
 2 files changed, 22 insertions(+)

diff --git a/drivers/gpu/drm/panfrost/panfrost_device.c b/drivers/gpu/drm/panfrost/panfrost_device.c
index 238fb6d54df4732..a0b0a6fef8b4e63 100644
--- a/drivers/gpu/drm/panfrost/panfrost_device.c
+++ b/drivers/gpu/drm/panfrost/panfrost_device.c
@@ -102,12 +102,33 @@ static int panfrost_regulator_init(struct panfrost_device *pfdev)
 		return ret;
 	}
 
+	pfdev->regulator_sram = devm_regulator_get_optional(pfdev->dev, "sram");
+	if (IS_ERR(pfdev->regulator_sram)) {
+		ret = PTR_ERR(pfdev->regulator_sram);
+		dev_err(pfdev->dev, "failed to get SRAM regulator: %d\n", ret);
+		goto err;
+	}
+
+	if (pfdev->regulator_sram) {
+		ret = regulator_enable(pfdev->regulator_sram);
+		if (ret < 0) {
+			dev_err(pfdev->dev,
+				"failed to enable SRAM regulator: %d\n", ret);
+			goto err;
+		}
+	}
+
 	return 0;
+
+err:
+	regulator_disable(pfdev->regulator);
+	return ret;
 }
 
 static void panfrost_regulator_fini(struct panfrost_device *pfdev)
 {
 	regulator_disable(pfdev->regulator);
+	regulator_disable(pfdev->regulator_sram);
 }
 
 int panfrost_device_init(struct panfrost_device *pfdev)
diff --git a/drivers/gpu/drm/panfrost/panfrost_device.h b/drivers/gpu/drm/panfrost/panfrost_device.h
index 06713811b92cdf7..a124334d69e7e93 100644
--- a/drivers/gpu/drm/panfrost/panfrost_device.h
+++ b/drivers/gpu/drm/panfrost/panfrost_device.h
@@ -60,6 +60,7 @@ struct panfrost_device {
 	struct clk *clock;
 	struct clk *bus_clock;
 	struct regulator *regulator;
+	struct regulator *regulator_sram;
 	struct reset_control *rstc;
 
 	struct panfrost_features features;
-- 
2.24.1.735.g03f4e72817-goog


_______________________________________________
Linux-mediatek mailing list
Linux-mediatek@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-mediatek

WARNING: multiple messages have this Message-ID
From: Nicolas Boichat <drinkcat@chromium.org>
To: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>,
	devicetree@vger.kernel.org,
	Tomeu Vizoso <tomeu.vizoso@collabora.com>,
	David Airlie <airlied@linux.ie>,
	linux-kernel@vger.kernel.org, Liam Girdwood <lgirdwood@gmail.com>,
	dri-devel@lists.freedesktop.org,
	Steven Price <steven.price@arm.com>,
	Mark Brown <broonie@kernel.org>,
	linux-mediatek@lists.infradead.org,
	Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>,
	Daniel Vetter <daniel@ffwll.ch>,
	hsinyi@chromium.org, Matthias Brugger <matthias.bgg@gmail.com>,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 4/7] drm/panfrost: Add support for a second regulator for the GPU
Date: Wed,  8 Jan 2020 13:23:34 +0800	[thread overview]
Message-ID: <20200108052337.65916-5-drinkcat@chromium.org> (raw)
In-Reply-To: <20200108052337.65916-1-drinkcat@chromium.org>

Some GPUs, namely, the bifrost/g72 part on MT8183, have a second
regulator for their SRAM, let's add support for that.

Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
---
 drivers/gpu/drm/panfrost/panfrost_device.c | 21 +++++++++++++++++++++
 drivers/gpu/drm/panfrost/panfrost_device.h |  1 +
 2 files changed, 22 insertions(+)

diff --git a/drivers/gpu/drm/panfrost/panfrost_device.c b/drivers/gpu/drm/panfrost/panfrost_device.c
index 238fb6d54df4732..a0b0a6fef8b4e63 100644
--- a/drivers/gpu/drm/panfrost/panfrost_device.c
+++ b/drivers/gpu/drm/panfrost/panfrost_device.c
@@ -102,12 +102,33 @@ static int panfrost_regulator_init(struct panfrost_device *pfdev)
 		return ret;
 	}
 
+	pfdev->regulator_sram = devm_regulator_get_optional(pfdev->dev, "sram");
+	if (IS_ERR(pfdev->regulator_sram)) {
+		ret = PTR_ERR(pfdev->regulator_sram);
+		dev_err(pfdev->dev, "failed to get SRAM regulator: %d\n", ret);
+		goto err;
+	}
+
+	if (pfdev->regulator_sram) {
+		ret = regulator_enable(pfdev->regulator_sram);
+		if (ret < 0) {
+			dev_err(pfdev->dev,
+				"failed to enable SRAM regulator: %d\n", ret);
+			goto err;
+		}
+	}
+
 	return 0;
+
+err:
+	regulator_disable(pfdev->regulator);
+	return ret;
 }
 
 static void panfrost_regulator_fini(struct panfrost_device *pfdev)
 {
 	regulator_disable(pfdev->regulator);
+	regulator_disable(pfdev->regulator_sram);
 }
 
 int panfrost_device_init(struct panfrost_device *pfdev)
diff --git a/drivers/gpu/drm/panfrost/panfrost_device.h b/drivers/gpu/drm/panfrost/panfrost_device.h
index 06713811b92cdf7..a124334d69e7e93 100644
--- a/drivers/gpu/drm/panfrost/panfrost_device.h
+++ b/drivers/gpu/drm/panfrost/panfrost_device.h
@@ -60,6 +60,7 @@ struct panfrost_device {
 	struct clk *clock;
 	struct clk *bus_clock;
 	struct regulator *regulator;
+	struct regulator *regulator_sram;
 	struct reset_control *rstc;
 
 	struct panfrost_features features;
-- 
2.24.1.735.g03f4e72817-goog


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

WARNING: multiple messages have this Message-ID
From: Nicolas Boichat <drinkcat@chromium.org>
To: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>,
	devicetree@vger.kernel.org,
	Tomeu Vizoso <tomeu.vizoso@collabora.com>,
	David Airlie <airlied@linux.ie>,
	linux-kernel@vger.kernel.org, Liam Girdwood <lgirdwood@gmail.com>,
	dri-devel@lists.freedesktop.org,
	Steven Price <steven.price@arm.com>,
	Mark Brown <broonie@kernel.org>,
	linux-mediatek@lists.infradead.org,
	Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>,
	hsinyi@chromium.org, Matthias Brugger <matthias.bgg@gmail.com>,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 4/7] drm/panfrost: Add support for a second regulator for the GPU
Date: Wed,  8 Jan 2020 13:23:34 +0800	[thread overview]
Message-ID: <20200108052337.65916-5-drinkcat@chromium.org> (raw)
In-Reply-To: <20200108052337.65916-1-drinkcat@chromium.org>

Some GPUs, namely, the bifrost/g72 part on MT8183, have a second
regulator for their SRAM, let's add support for that.

Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
---
 drivers/gpu/drm/panfrost/panfrost_device.c | 21 +++++++++++++++++++++
 drivers/gpu/drm/panfrost/panfrost_device.h |  1 +
 2 files changed, 22 insertions(+)

diff --git a/drivers/gpu/drm/panfrost/panfrost_device.c b/drivers/gpu/drm/panfrost/panfrost_device.c
index 238fb6d54df4732..a0b0a6fef8b4e63 100644
--- a/drivers/gpu/drm/panfrost/panfrost_device.c
+++ b/drivers/gpu/drm/panfrost/panfrost_device.c
@@ -102,12 +102,33 @@ static int panfrost_regulator_init(struct panfrost_device *pfdev)
 		return ret;
 	}
 
+	pfdev->regulator_sram = devm_regulator_get_optional(pfdev->dev, "sram");
+	if (IS_ERR(pfdev->regulator_sram)) {
+		ret = PTR_ERR(pfdev->regulator_sram);
+		dev_err(pfdev->dev, "failed to get SRAM regulator: %d\n", ret);
+		goto err;
+	}
+
+	if (pfdev->regulator_sram) {
+		ret = regulator_enable(pfdev->regulator_sram);
+		if (ret < 0) {
+			dev_err(pfdev->dev,
+				"failed to enable SRAM regulator: %d\n", ret);
+			goto err;
+		}
+	}
+
 	return 0;
+
+err:
+	regulator_disable(pfdev->regulator);
+	return ret;
 }
 
 static void panfrost_regulator_fini(struct panfrost_device *pfdev)
 {
 	regulator_disable(pfdev->regulator);
+	regulator_disable(pfdev->regulator_sram);
 }
 
 int panfrost_device_init(struct panfrost_device *pfdev)
diff --git a/drivers/gpu/drm/panfrost/panfrost_device.h b/drivers/gpu/drm/panfrost/panfrost_device.h
index 06713811b92cdf7..a124334d69e7e93 100644
--- a/drivers/gpu/drm/panfrost/panfrost_device.h
+++ b/drivers/gpu/drm/panfrost/panfrost_device.h
@@ -60,6 +60,7 @@ struct panfrost_device {
 	struct clk *clock;
 	struct clk *bus_clock;
 	struct regulator *regulator;
+	struct regulator *regulator_sram;
 	struct reset_control *rstc;
 
 	struct panfrost_features features;
-- 
2.24.1.735.g03f4e72817-goog

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

  parent reply	other threads:[~2020-01-08  5:24 UTC|newest]

Thread overview: 128+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-08  5:23 [PATCH v2 0/7] Add dts for mt8183 GPU (and misc panfrost patches) Nicolas Boichat
2020-01-08  5:23 ` Nicolas Boichat
2020-01-08  5:23 ` Nicolas Boichat
2020-01-08  5:23 ` Nicolas Boichat
2020-01-08  5:23 ` [PATCH v2 1/7] dt-bindings: gpu: mali-bifrost: Add Mediatek MT8183 Nicolas Boichat
2020-01-08  5:23   ` Nicolas Boichat
2020-01-08  5:23   ` Nicolas Boichat
2020-01-08  5:23   ` Nicolas Boichat
2020-01-08  5:23 ` [PATCH v2 2/7] arm64: dts: mt8183: Add node for the Mali GPU Nicolas Boichat
2020-01-08  5:23   ` Nicolas Boichat
2020-01-08  5:23   ` Nicolas Boichat
2020-01-08  5:23   ` Nicolas Boichat
2020-01-08  5:23 ` [PATCH v2 3/7] drm/panfrost: Improve error reporting in panfrost_gpu_power_on Nicolas Boichat
2020-01-08  5:23   ` Nicolas Boichat
2020-01-08  5:23   ` Nicolas Boichat
2020-01-08  5:23   ` Nicolas Boichat
2020-01-09 12:03   ` Steven Price
2020-01-09 12:03     ` Steven Price
2020-01-09 12:03     ` Steven Price
2020-01-09 12:03     ` Steven Price
2020-01-08  5:23 ` Nicolas Boichat [this message]
2020-01-08  5:23   ` [PATCH v2 4/7] drm/panfrost: Add support for a second regulator for the GPU Nicolas Boichat
2020-01-08  5:23   ` Nicolas Boichat
2020-01-08  5:23   ` Nicolas Boichat
2020-01-08 13:23   ` Mark Brown
2020-01-08 13:23     ` Mark Brown
2020-01-08 13:23     ` Mark Brown
2020-01-08 13:23     ` Mark Brown
2020-01-08 22:52     ` Nicolas Boichat
2020-01-08 22:52       ` Nicolas Boichat
2020-01-08 22:52       ` Nicolas Boichat
2020-01-08 22:52       ` Nicolas Boichat
2020-01-09 14:14       ` Steven Price
2020-01-09 14:14         ` Steven Price
2020-01-09 14:14         ` Steven Price
2020-01-09 14:14         ` Steven Price
2020-01-09 16:28         ` Mark Brown
2020-01-09 16:28           ` Mark Brown
2020-01-09 16:28           ` Mark Brown
2020-01-09 16:28           ` Mark Brown
2020-01-09 16:53           ` Steven Price
2020-01-09 16:53             ` Steven Price
2020-01-09 16:53             ` Steven Price
2020-01-09 16:53             ` Steven Price
2020-01-09 19:49             ` Mark Brown
2020-01-09 19:49               ` Mark Brown
2020-01-09 19:49               ` Mark Brown
2020-01-09 19:49               ` Mark Brown
2020-01-10 11:30               ` Steven Price
2020-01-10 11:30                 ` Steven Price
2020-01-10 11:30                 ` Steven Price
2020-01-10 11:30                 ` Steven Price
2020-01-14  7:21                 ` Nicolas Boichat
2020-01-14  7:21                   ` Nicolas Boichat
2020-01-14  7:21                   ` Nicolas Boichat
2020-01-14  7:21                   ` Nicolas Boichat
2020-01-09 16:56       ` Rob Herring
2020-01-09 16:56         ` Rob Herring
2020-01-09 16:56         ` Rob Herring
2020-01-09 16:56         ` Rob Herring
2020-01-10 11:39         ` Steven Price
2020-01-10 11:39           ` Steven Price
2020-01-10 11:39           ` Steven Price
2020-01-10 11:39           ` Steven Price
2020-01-08  5:23 ` [PATCH v2 5/7] drm/panfrost: Add support for multiple power domain support Nicolas Boichat
2020-01-08  5:23   ` Nicolas Boichat
2020-01-08  5:23   ` Nicolas Boichat
2020-01-08  5:23   ` Nicolas Boichat
2020-01-09 14:08   ` Steven Price
2020-01-09 14:08     ` Steven Price
2020-01-09 14:08     ` Steven Price
2020-01-09 14:08     ` Steven Price
2020-01-10  1:53     ` Nicolas Boichat
2020-01-10  1:53       ` Nicolas Boichat
2020-01-10  1:53       ` Nicolas Boichat
2020-01-10  1:53       ` Nicolas Boichat
2020-01-27  7:55       ` Ulf Hansson
2020-01-27  7:55         ` Ulf Hansson
2020-01-27  7:55         ` Ulf Hansson
2020-01-27  7:55         ` Ulf Hansson
2020-02-07  2:04         ` Nicolas Boichat
2020-02-07  2:04           ` Nicolas Boichat
2020-02-07  2:04           ` Nicolas Boichat
2020-02-07  2:04           ` Nicolas Boichat
2020-02-07  2:04           ` Nicolas Boichat
2020-02-07  2:04             ` Nicolas Boichat
2020-02-07  2:04             ` Nicolas Boichat
2020-02-07  2:04             ` Nicolas Boichat
2020-01-08  5:23 ` [PATCH v2 6/7, RFC] drm/panfrost: Add bifrost compatible string Nicolas Boichat
2020-01-08  5:23   ` Nicolas Boichat
2020-01-08  5:23   ` Nicolas Boichat
2020-01-08  5:23   ` Nicolas Boichat
2020-01-09 14:11   ` Steven Price
2020-01-09 14:11     ` Steven Price
2020-01-09 14:11     ` Steven Price
2020-01-09 14:11     ` Steven Price
2020-01-08  5:23 ` [PATCH v2 7/7, RFC]: drm/panfrost: devfreq: Add support for 2 regulators Nicolas Boichat
2020-01-08  5:23   ` Nicolas Boichat
2020-01-08  5:23   ` Nicolas Boichat
2020-01-08  5:23   ` Nicolas Boichat
2020-01-08 20:09   ` Rob Herring
2020-01-08 20:09     ` Rob Herring
2020-01-08 20:09     ` Rob Herring
2020-01-08 20:09     ` Rob Herring
2020-01-08 22:44     ` Nicolas Boichat
2020-01-08 22:44       ` Nicolas Boichat
2020-01-08 22:44       ` Nicolas Boichat
2020-01-08 22:44       ` Nicolas Boichat
2020-01-08 12:56 ` [PATCH v2 0/7] Add dts for mt8183 GPU (and misc panfrost patches) Alyssa Rosenzweig
2020-01-08 12:56   ` Alyssa Rosenzweig
2020-01-08 12:56   ` Alyssa Rosenzweig
2020-01-08 12:56   ` Alyssa Rosenzweig
2020-01-09  9:08 ` Nicolas Boichat
2020-01-09  9:08   ` Nicolas Boichat
2020-01-09  9:08   ` Nicolas Boichat
2020-01-09  9:08   ` Nicolas Boichat
2020-01-09 12:01 ` Steven Price
2020-01-09 12:01   ` Steven Price
2020-01-09 12:01   ` Steven Price
2020-01-09 12:01   ` Steven Price
2020-01-09 13:10   ` Robin Murphy
2020-01-09 13:10     ` Robin Murphy
2020-01-09 13:10     ` Robin Murphy
2020-01-09 13:10     ` Robin Murphy
2020-01-09 13:29     ` Steven Price
2020-01-09 13:29       ` Steven Price
2020-01-09 13:29       ` Steven Price
2020-01-09 13:29       ` Steven Price

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