i.MX6UL does only require three clocks to enable CAAM module.
Signed-off-by: Marcus Folkesson <marcus.folkes...@gmail.com>
Acked-by: Rob Herring <r...@kernel.org>
Reviewed-by: Horia Geantă <horia.gea...@nxp.com>
---
.../devicetree/bindings/crypto/fsl-sec4.txt | 20 +++++++++++++
drivers/crypto/caam/ctrl.c | 35 ++++++++++++----------
2 files changed, 40 insertions(+), 15 deletions(-)
diff --git a/Documentation/devicetree/bindings/crypto/fsl-sec4.txt
b/Documentation/devicetree/bindings/crypto/fsl-sec4.txt
index adeca34..10a425f 100644
--- a/Documentation/devicetree/bindings/crypto/fsl-sec4.txt
+++ b/Documentation/devicetree/bindings/crypto/fsl-sec4.txt
@@ -123,6 +123,9 @@ PROPERTIES
EXAMPLE
+
+iMX6QDL/SX requires four clocks
+
crypto@300000 {
compatible = "fsl,sec-v4.0";
fsl,sec-era = <2>;
@@ -139,6 +142,23 @@ EXAMPLE
clock-names = "mem", "aclk", "ipg", "emi_slow";
};
+
+iMX6UL does only require three clocks
+
+ crypto: caam@2140000 {
+ compatible = "fsl,sec-v4.0";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = <0x2140000 0x3c000>;
+ ranges = <0 0x2140000 0x3c000>;
+ interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
+
+ clocks = <&clks IMX6UL_CLK_CAAM_MEM>,
+ <&clks IMX6UL_CLK_CAAM_ACLK>,
+ <&clks IMX6UL_CLK_CAAM_IPG>;
+ clock-names = "mem", "aclk", "ipg";
+ };
+
=====================================================================
Job Ring (JR) Node
diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index 0ec112e..5abaf37 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -329,8 +329,8 @@ static int caam_remove(struct platform_device *pdev)
clk_disable_unprepare(ctrlpriv->caam_ipg);
clk_disable_unprepare(ctrlpriv->caam_mem);
clk_disable_unprepare(ctrlpriv->caam_aclk);
- clk_disable_unprepare(ctrlpriv->caam_emi_slow);
-
+ if (!of_machine_is_compatible("fsl,imx6ul"))
+ clk_disable_unprepare(ctrlpriv->caam_emi_slow);
return 0;
}
@@ -481,14 +481,16 @@ static int caam_probe(struct platform_device *pdev)
}
ctrlpriv->caam_aclk = clk;
- clk = caam_drv_identify_clk(&pdev->dev, "emi_slow");
- if (IS_ERR(clk)) {
- ret = PTR_ERR(clk);
- dev_err(&pdev->dev,
- "can't identify CAAM emi_slow clk: %d\n", ret);
- return ret;
+ if (!of_machine_is_compatible("fsl,imx6ul")) {
+ clk = caam_drv_identify_clk(&pdev->dev, "emi_slow");
+ if (IS_ERR(clk)) {
+ ret = PTR_ERR(clk);
+ dev_err(&pdev->dev,
+ "can't identify CAAM emi_slow clk: %d\n", ret);
+ return ret;
+ }
+ ctrlpriv->caam_emi_slow = clk;
}
- ctrlpriv->caam_emi_slow = clk;
ret = clk_prepare_enable(ctrlpriv->caam_ipg);
if (ret < 0) {
@@ -509,11 +511,13 @@ static int caam_probe(struct platform_device *pdev)
goto disable_caam_mem;
}
- ret = clk_prepare_enable(ctrlpriv->caam_emi_slow);
- if (ret < 0) {
- dev_err(&pdev->dev, "can't enable CAAM emi slow clock: %d\n",
- ret);
- goto disable_caam_aclk;
+ if (!of_machine_is_compatible("fsl,imx6ul")) {
+ ret = clk_prepare_enable(ctrlpriv->caam_emi_slow);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "can't enable CAAM emi slow clock:
%d\n",
+ ret);
+ goto disable_caam_aclk;
+ }
}
/* Get configuration properties from device tree */
@@ -829,7 +833,8 @@ caam_remove:
iounmap_ctrl:
iounmap(ctrl);
disable_caam_emi_slow:
- clk_disable_unprepare(ctrlpriv->caam_emi_slow);
+ if (!of_machine_is_compatible("fsl,imx6ul"))
+ clk_disable_unprepare(ctrlpriv->caam_emi_slow);
disable_caam_aclk:
clk_disable_unprepare(ctrlpriv->caam_aclk);
disable_caam_mem:
--
2.8.0
--
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