mfd: atmel-hlcdc: Add support for new SoCs

Add the compatible strings for the at91sam9x5, at91sam9n12, sama5d4 and
sama5d2 SoCs.
Update the documentation accordingly.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Documentation/devicetree/bindings/mfd/atmel-hlcdc.txt

@@ -2,7 +2,11 @@ Device-Tree bindings for Atmel's HLCDC (High LCD Controller) MFD driver
 
 Required properties:
  - compatible: value should be one of the following:
+   "atmel,at91sam9n12-hlcdc"
+   "atmel,at91sam9x5-hlcdc"
+   "atmel,sama5d2-hlcdc"
    "atmel,sama5d3-hlcdc"
+   "atmel,sama5d4-hlcdc"
  - reg: base address and size of the HLCDC device registers.
  - clock-names: the name of the 3 clocks requested by the HLCDC device.
    Should contain "periph_clk", "sys_clk" and "slow_clk".

drivers/mfd/atmel-hlcdc.c

@@ -141,7 +141,11 @@ static int atmel_hlcdc_remove(struct platform_device *pdev)
 }
 
 static const struct of_device_id atmel_hlcdc_match[] = {
+	{ .compatible = "atmel,at91sam9n12-hlcdc" },
+	{ .compatible = "atmel,at91sam9x5-hlcdc" },
+	{ .compatible = "atmel,sama5d2-hlcdc" },
 	{ .compatible = "atmel,sama5d3-hlcdc" },
+	{ .compatible = "atmel,sama5d4-hlcdc" },
 	{ /* sentinel */ },
 };