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From: Corentin Labbe <clabbe.montjoie@gmail.com>
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To: axboe@kernel.dk, hdegoede@redhat.com, mark.rutland@arm.com,
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 maxime.ripard@bootlin.com, robh+dt@kernel.org, wens@csie.org
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Subject: [PATCH v5 1/9] dt-bindings: ata: ahci-platform: fix indentation of
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 target-supply
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Date: Mon,  3 Sep 2018 12:01:53 +0200
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This patch fix the indentation of target-supply's ':'.
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Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
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---
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 Documentation/devicetree/bindings/ata/ahci-platform.txt | 2 +-
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 1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/Documentation/devicetree/bindings/ata/ahci-platform.txt b/Documentation/devicetree/bindings/ata/ahci-platform.txt
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index 5d5bd456d9d9..b88820b4c01e 100644
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--- a/Documentation/devicetree/bindings/ata/ahci-platform.txt
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+++ b/Documentation/devicetree/bindings/ata/ahci-platform.txt
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@@ -47,7 +47,7 @@ Sub-nodes required properties:
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 - reg		    : the port number
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 And at least one of the following properties:
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 - phys		    : reference to the SATA PHY node
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-- target-supply    : regulator for SATA target power
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+- target-supply     : regulator for SATA target power
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 Examples:
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         sata@ffe08000 {
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From: Corentin Labbe <clabbe.montjoie@gmail.com>
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To: axboe@kernel.dk, hdegoede@redhat.com, mark.rutland@arm.com,
e336be
 maxime.ripard@bootlin.com, robh+dt@kernel.org, wens@csie.org
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Subject: [PATCH v5 2/9] ata: ahci_platform: add support for AHCI controller
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 regulator
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Date: Mon,  3 Sep 2018 12:01:54 +0200
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Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
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The SoC R40 AHCI controller need a regulator to work.
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So this patch add a way to add an optional regulator on AHCI controller.
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Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
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---
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 drivers/ata/ahci.h             |  1 +
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 drivers/ata/libahci_platform.c | 26 ++++++++++++++++++++++++--
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 2 files changed, 25 insertions(+), 2 deletions(-)
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diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h
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index 6a1515f0da40..1415f1012de5 100644
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--- a/drivers/ata/ahci.h
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+++ b/drivers/ata/ahci.h
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@@ -352,6 +352,7 @@ struct ahci_host_priv {
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 	struct clk		*clks[AHCI_MAX_CLKS]; /* Optional */
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 	struct reset_control	*rsts;		/* Optional */
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 	struct regulator	**target_pwrs;	/* Optional */
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+	struct regulator	*ahci_regulator;/* Optional */
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 	/*
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 	 * If platform uses PHYs. There is a 1:1 relation between the port number and
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 	 * the PHY position in this array.
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diff --git a/drivers/ata/libahci_platform.c b/drivers/ata/libahci_platform.c
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index c92c10d55374..a886b61476a3 100644
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--- a/drivers/ata/libahci_platform.c
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+++ b/drivers/ata/libahci_platform.c
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@@ -139,7 +139,7 @@ EXPORT_SYMBOL_GPL(ahci_platform_disable_clks);
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  * ahci_platform_enable_regulators - Enable regulators
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  * @hpriv: host private area to store config values
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  *
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- * This function enables all the regulators found in
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+ * This function enables all the regulators found in controller and
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  * hpriv->target_pwrs, if any.  If a regulator fails to be enabled, it
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  * disables all the regulators already enabled in reverse order and
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  * returns an error.
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@@ -151,6 +151,12 @@ int ahci_platform_enable_regulators(struct ahci_host_priv *hpriv)
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 {
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 	int rc, i;
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+	if (hpriv->ahci_regulator) {
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+		rc = regulator_enable(hpriv->ahci_regulator);
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+		if (rc)
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+			return rc;
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+	}
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+
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 	for (i = 0; i < hpriv->nports; i++) {
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 		if (!hpriv->target_pwrs[i])
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 			continue;
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@@ -167,6 +173,8 @@ int ahci_platform_enable_regulators(struct ahci_host_priv *hpriv)
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 		if (hpriv->target_pwrs[i])
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 			regulator_disable(hpriv->target_pwrs[i]);
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+	if (hpriv->ahci_regulator)
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+		regulator_disable(hpriv->ahci_regulator);
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 	return rc;
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 }
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 EXPORT_SYMBOL_GPL(ahci_platform_enable_regulators);
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@@ -175,7 +183,8 @@ EXPORT_SYMBOL_GPL(ahci_platform_enable_regulators);
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  * ahci_platform_disable_regulators - Disable regulators
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  * @hpriv: host private area to store config values
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  *
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- * This function disables all regulators found in hpriv->target_pwrs.
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+ * This function disables all regulators found in hpriv->target_pwrs and
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+ * AHCI controller.
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  */
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 void ahci_platform_disable_regulators(struct ahci_host_priv *hpriv)
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 {
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@@ -186,6 +195,9 @@ void ahci_platform_disable_regulators(struct ahci_host_priv *hpriv)
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 			continue;
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 		regulator_disable(hpriv->target_pwrs[i]);
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 	}
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+
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+	if (hpriv->ahci_regulator)
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+		regulator_disable(hpriv->ahci_regulator);
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 }
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 EXPORT_SYMBOL_GPL(ahci_platform_disable_regulators);
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 /**
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@@ -351,6 +363,7 @@ static int ahci_platform_get_regulator(struct ahci_host_priv *hpriv, u32 port,
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  *
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  * 1) mmio registers (IORESOURCE_MEM 0, mandatory)
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  * 2) regulator for controlling the targets power (optional)
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+ *    regulator for controlling the AHCI controller (optional)
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  * 3) 0 - AHCI_MAX_CLKS clocks, as specified in the devs devicetree node,
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  *    or for non devicetree enabled platforms a single clock
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  * 4) resets, if flags has AHCI_PLATFORM_GET_RESETS (optional)
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@@ -408,6 +421,15 @@ struct ahci_host_priv *ahci_platform_get_resources(struct platform_device *pdev,
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 		hpriv->clks[i] = clk;
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 	}
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+	hpriv->ahci_regulator = devm_regulator_get_optional(dev, "ahci");
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+	if (IS_ERR(hpriv->ahci_regulator)) {
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+		rc = PTR_ERR(hpriv->ahci_regulator);
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+		if (rc == -EPROBE_DEFER)
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+			goto err_out;
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+		rc = 0;
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+		hpriv->ahci_regulator = NULL;
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+	}
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+
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 	if (flags & AHCI_PLATFORM_GET_RESETS) {
e336be
 		hpriv->rsts = devm_reset_control_array_get_optional_shared(dev);
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 		if (IS_ERR(hpriv->rsts)) {
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From patchwork Mon Sep  3 10:01:55 2018
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To: axboe@kernel.dk, hdegoede@redhat.com, mark.rutland@arm.com,
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Subject: [PATCH v5 3/9] dt-bindings: ata: ahci-platform: document ahci-supply
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This patch document the new optional ahci-supply.
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Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
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Reviewed-by: Rob Herring <robh@kernel.org>
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---
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 Documentation/devicetree/bindings/ata/ahci-platform.txt | 1 +
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 1 file changed, 1 insertion(+)
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diff --git a/Documentation/devicetree/bindings/ata/ahci-platform.txt b/Documentation/devicetree/bindings/ata/ahci-platform.txt
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index b88820b4c01e..f495774c8af9 100644
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--- a/Documentation/devicetree/bindings/ata/ahci-platform.txt
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+++ b/Documentation/devicetree/bindings/ata/ahci-platform.txt
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@@ -33,6 +33,7 @@ Optional properties:
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 - target-supply     : regulator for SATA target power
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 - phys              : reference to the SATA PHY node
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 - phy-names         : must be "sata-phy"
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+- ahci-supply       : regulator for AHCI controller
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 - ports-implemented : Mask that indicates which ports that the HBA supports
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 		      are available for software to use. Useful if PORTS_IMPL
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 		      is not programmed by the BIOS, which is true with
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From patchwork Mon Sep  3 10:01:56 2018
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 Mon, 03 Sep 2018 03:02:10 -0700 (PDT)
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From: Corentin Labbe <clabbe.montjoie@gmail.com>
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To: axboe@kernel.dk, hdegoede@redhat.com, mark.rutland@arm.com,
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 maxime.ripard@bootlin.com, robh+dt@kernel.org, wens@csie.org
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Subject: [PATCH v5 4/9] ata: ahci_platform: add support for PHY controller
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 regulator
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Date: Mon,  3 Sep 2018 12:01:56 +0200
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References: <20180903100201.23131-1-clabbe.montjoie@gmail.com>
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Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
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The SoC R40 AHCI controller need a PHY regulator to work.
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But since the PHY is embedded in the controller, we cannot do a DT node for it,
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since phy-supply works only in node with a PHY compatible.
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So this patch adds a way to add an optional phy-supply regulator on AHCI controller node.
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Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
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---
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 drivers/ata/ahci.h             |  1 +
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 drivers/ata/libahci_platform.c | 20 ++++++++++++++++++++
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 2 files changed, 21 insertions(+)
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diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h
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index 1415f1012de5..ef356e70e6de 100644
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--- a/drivers/ata/ahci.h
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+++ b/drivers/ata/ahci.h
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@@ -353,6 +353,7 @@ struct ahci_host_priv {
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 	struct reset_control	*rsts;		/* Optional */
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 	struct regulator	**target_pwrs;	/* Optional */
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 	struct regulator	*ahci_regulator;/* Optional */
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+	struct regulator	*phy_regulator;/* Optional */
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 	/*
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 	 * If platform uses PHYs. There is a 1:1 relation between the port number and
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 	 * the PHY position in this array.
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diff --git a/drivers/ata/libahci_platform.c b/drivers/ata/libahci_platform.c
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index a886b61476a3..dc4d79b1c9ae 100644
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--- a/drivers/ata/libahci_platform.c
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+++ b/drivers/ata/libahci_platform.c
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@@ -157,6 +157,12 @@ int ahci_platform_enable_regulators(struct ahci_host_priv *hpriv)
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 			return rc;
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 	}
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+	if (hpriv->phy_regulator) {
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+		rc = regulator_enable(hpriv->phy_regulator);
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+		if (rc)
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+			goto disable_ahci_pwrs;
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+	}
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+
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 	for (i = 0; i < hpriv->nports; i++) {
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 		if (!hpriv->target_pwrs[i])
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 			continue;
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@@ -173,6 +179,9 @@ int ahci_platform_enable_regulators(struct ahci_host_priv *hpriv)
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 		if (hpriv->target_pwrs[i])
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 			regulator_disable(hpriv->target_pwrs[i]);
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+	if (hpriv->phy_regulator)
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+		regulator_disable(hpriv->phy_regulator);
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+disable_ahci_pwrs:
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 	if (hpriv->ahci_regulator)
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 		regulator_disable(hpriv->ahci_regulator);
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 	return rc;
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@@ -198,6 +207,8 @@ void ahci_platform_disable_regulators(struct ahci_host_priv *hpriv)
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 	if (hpriv->ahci_regulator)
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 		regulator_disable(hpriv->ahci_regulator);
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+	if (hpriv->phy_regulator)
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+		regulator_disable(hpriv->phy_regulator);
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 }
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 EXPORT_SYMBOL_GPL(ahci_platform_disable_regulators);
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 /**
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@@ -430,6 +441,15 @@ struct ahci_host_priv *ahci_platform_get_resources(struct platform_device *pdev,
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 		hpriv->ahci_regulator = NULL;
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 	}
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+	hpriv->phy_regulator = devm_regulator_get_optional(dev, "phy");
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+	if (IS_ERR(hpriv->phy_regulator)) {
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+		rc = PTR_ERR(hpriv->phy_regulator);
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+		if (rc == -EPROBE_DEFER)
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+			goto err_out;
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+		rc = 0;
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+		hpriv->phy_regulator = NULL;
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+	}
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+
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 	if (flags & AHCI_PLATFORM_GET_RESETS) {
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 		hpriv->rsts = devm_reset_control_array_get_optional_shared(dev);
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 		if (IS_ERR(hpriv->rsts)) {
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From: Corentin Labbe <clabbe.montjoie@gmail.com>
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To: axboe@kernel.dk, hdegoede@redhat.com, mark.rutland@arm.com,
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 maxime.ripard@bootlin.com, robh+dt@kernel.org, wens@csie.org
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Subject: [PATCH v5 5/9] dt-bindings: ata: ahci-platform: document phy-supply
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Date: Mon,  3 Sep 2018 12:01:57 +0200
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Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
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This patch document the new optional phy-supply.
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Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
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---
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 Documentation/devicetree/bindings/ata/ahci-platform.txt | 1 +
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 1 file changed, 1 insertion(+)
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diff --git a/Documentation/devicetree/bindings/ata/ahci-platform.txt b/Documentation/devicetree/bindings/ata/ahci-platform.txt
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index f495774c8af9..45b451961612 100644
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--- a/Documentation/devicetree/bindings/ata/ahci-platform.txt
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+++ b/Documentation/devicetree/bindings/ata/ahci-platform.txt
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@@ -31,6 +31,7 @@ Optional properties:
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 - clocks            : a list of phandle + clock specifier pairs
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 - resets            : a list of phandle + reset specifier pairs
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 - target-supply     : regulator for SATA target power
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+- phy-supply        : regulator for PHY power
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 - phys              : reference to the SATA PHY node
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 - phy-names         : must be "sata-phy"
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 - ahci-supply       : regulator for AHCI controller
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From patchwork Mon Sep  3 10:01:58 2018
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X-Patchwork-Submitter: Corentin Labbe <clabbe.montjoie@gmail.com>
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X-Patchwork-Id: 10585707
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From: Corentin Labbe <clabbe.montjoie@gmail.com>
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To: axboe@kernel.dk, hdegoede@redhat.com, mark.rutland@arm.com,
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 maxime.ripard@bootlin.com, robh+dt@kernel.org, wens@csie.org
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Subject: [PATCH v5 6/9] ata: ahci_sunxi: add support for r40
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Date: Mon,  3 Sep 2018 12:01:58 +0200
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This patch add the r40 compatible to the ahci_sunxi's supported list of
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compatible.
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Since R40 need ahci_platform to handle the reset controller, we also add
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the new AHCI_PLATFORM_GET_RESETS flag for ahci_platform_get_resources().
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This has no consequence for older platform (a10, a20) since the reset is
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optional.
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Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
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---
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 drivers/ata/ahci_sunxi.c | 3 ++-
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 1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/drivers/ata/ahci_sunxi.c b/drivers/ata/ahci_sunxi.c
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index 631610b72aa5..911710643305 100644
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--- a/drivers/ata/ahci_sunxi.c
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+++ b/drivers/ata/ahci_sunxi.c
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@@ -181,7 +181,7 @@ static int ahci_sunxi_probe(struct platform_device *pdev)
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 	struct ahci_host_priv *hpriv;
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 	int rc;
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-	hpriv = ahci_platform_get_resources(pdev, 0);
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+	hpriv = ahci_platform_get_resources(pdev, AHCI_PLATFORM_GET_RESETS);
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 	if (IS_ERR(hpriv))
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 		return PTR_ERR(hpriv);
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@@ -250,6 +250,7 @@ static SIMPLE_DEV_PM_OPS(ahci_sunxi_pm_ops, ahci_platform_suspend,
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 static const struct of_device_id ahci_sunxi_of_match[] = {
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 	{ .compatible = "allwinner,sun4i-a10-ahci", },
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+	{ .compatible = "allwinner,sun8i-r40-ahci", },
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 	{ },
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 };
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 MODULE_DEVICE_TABLE(of, ahci_sunxi_of_match);
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 Mon, 03 Sep 2018 03:02:15 -0700 (PDT)
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From: Corentin Labbe <clabbe.montjoie@gmail.com>
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To: axboe@kernel.dk, hdegoede@redhat.com, mark.rutland@arm.com,
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 maxime.ripard@bootlin.com, robh+dt@kernel.org, wens@csie.org
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Subject: [PATCH v5 7/9] dt-bindings: ata: update ahci_sunxi bindings
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Date: Mon,  3 Sep 2018 12:01:59 +0200
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Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
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This patch update binding with the new R40 compatible.
e336be
e336be
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
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Reviewed-by: Rob Herring <robh@kernel.org>
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---
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 Documentation/devicetree/bindings/ata/ahci-platform.txt | 2 ++
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 1 file changed, 2 insertions(+)
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diff --git a/Documentation/devicetree/bindings/ata/ahci-platform.txt b/Documentation/devicetree/bindings/ata/ahci-platform.txt
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index 45b451961612..e30fd106df4f 100644
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--- a/Documentation/devicetree/bindings/ata/ahci-platform.txt
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+++ b/Documentation/devicetree/bindings/ata/ahci-platform.txt
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@@ -10,6 +10,7 @@ PHYs.
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 Required properties:
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 - compatible        : compatible string, one of:
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   - "allwinner,sun4i-a10-ahci"
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+  - "allwinner,sun8i-r40-ahci"
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   - "brcm,iproc-ahci"
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   - "hisilicon,hisi-ahci"
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   - "cavium,octeon-7130-ahci"
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@@ -44,6 +45,7 @@ Required properties when using sub-nodes:
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 - #address-cells    : number of cells to encode an address
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 - #size-cells       : number of cells representing the size of an address
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+For allwinner,sun8i-r40-ahci, the reset propertie must be present.
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e336be
 Sub-nodes required properties:
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 - reg		    : the port number
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From: Corentin Labbe <clabbe.montjoie@gmail.com>
e336be
To: axboe@kernel.dk, hdegoede@redhat.com, mark.rutland@arm.com,
e336be
 maxime.ripard@bootlin.com, robh+dt@kernel.org, wens@csie.org
e336be
Subject: [PATCH v5 8/9] ARM: dts: sun8i: r40: add sata node
e336be
Date: Mon,  3 Sep 2018 12:02:00 +0200
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R40 have a sata controller which is the same as A20.
e336be
This patch adds a DT node for it.
e336be
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Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
e336be
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
e336be
---
e336be
 arch/arm/boot/dts/sun8i-r40.dtsi | 13 +++++++++++++
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 1 file changed, 13 insertions(+)
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diff --git a/arch/arm/boot/dts/sun8i-r40.dtsi b/arch/arm/boot/dts/sun8i-r40.dtsi
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index 852c2ccc3268..d27c522e1918 100644
e336be
--- a/arch/arm/boot/dts/sun8i-r40.dtsi
e336be
+++ b/arch/arm/boot/dts/sun8i-r40.dtsi
e336be
@@ -550,6 +550,19 @@
e336be
 			#size-cells = <0>;
e336be
 		};
e336be
 
e336be
+		ahci: sata@1c18000 {
e336be
+			compatible = "allwinner,sun8i-r40-ahci";
e336be
+			reg = <0x01c18000 0x1000>;
e336be
+			interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>;
e336be
+			clocks = <&ccu CLK_BUS_SATA>, <&ccu CLK_SATA>;
e336be
+			resets = <&ccu RST_BUS_SATA>;
e336be
+			resets-name = "ahci";
e336be
+			#address-cells = <1>;
e336be
+			#size-cells = <0>;
e336be
+			status = "disabled";
e336be
+
e336be
+		};
e336be
+
e336be
 		gmac: ethernet@1c50000 {
e336be
 			compatible = "allwinner,sun8i-r40-gmac";
e336be
 			syscon = <&ccu>;
e336be
From patchwork Mon Sep  3 10:02:01 2018
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X-Patchwork-Submitter: Corentin Labbe <clabbe.montjoie@gmail.com>
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X-Patchwork-Id: 10585715
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 Mon, 03 Sep 2018 03:02:17 -0700 (PDT)
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From: Corentin Labbe <clabbe.montjoie@gmail.com>
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To: axboe@kernel.dk, hdegoede@redhat.com, mark.rutland@arm.com,
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 maxime.ripard@bootlin.com, robh+dt@kernel.org, wens@csie.org
e336be
Subject: [PATCH v5 9/9] ARM: dts: sun8i: sun8i-r40-bananapi-m2-ultra: enable
e336be
 AHCI
e336be
Date: Mon,  3 Sep 2018 12:02:01 +0200
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This patch enable the AHCI controller.
e336be
Since this controller need two regulator, this patch add them.
e336be
e336be
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
e336be
---
e336be
 arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts | 18 ++++++++++++++++++
e336be
 1 file changed, 18 insertions(+)
e336be
e336be
diff --git a/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts b/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts
e336be
index a891a387e8f1..438b7b44dab3 100644
e336be
--- a/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts
e336be
+++ b/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts
e336be
@@ -105,6 +105,12 @@
e336be
 	};
e336be
 };
e336be
 
e336be
+&ahci {
e336be
+	ahci-supply = <&reg_dldo4>;
e336be
+	phy-supply = <&reg_eldo3>;
e336be
+	status = "okay";
e336be
+};
e336be
+
e336be
 &de {
e336be
 	status = "okay";
e336be
 };
e336be
@@ -250,6 +256,18 @@
e336be
 	regulator-name = "vcc-wifi";
e336be
 };
e336be
 
e336be
+&reg_dldo4 {
e336be
+	regulator-min-microvolt = <2500000>;
e336be
+	regulator-max-microvolt = <2500000>;
e336be
+	regulator-name = "vdd2v5-sata";
e336be
+};
e336be
+
e336be
+&reg_eldo3 {
e336be
+	regulator-min-microvolt = <1200000>;
e336be
+	regulator-max-microvolt = <1200000>;
e336be
+	regulator-name = "vdd1v2-sata";
e336be
+};
e336be
+
e336be
 &tcon_tv0 {
e336be
 	status = "okay";
e336be
 };