Signed-off-by: Yoshinori Sato <ysato@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/devicetree/bindings/mfd/sm501.txt | 45 +++++++++++++++++++++++++
drivers/mfd/sm501.c | 9 +++++
2 files changed, 54 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/sm501.txt
diff --git a/Documentation/devicetree/bindings/mfd/sm501.txt b/Documentation/devicetree/bindings/mfd/sm501.txt
new file mode 100644
index 0000000..9290094
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/sm501.txt
@@ -0,0 +1,45 @@
+* SM SM501
+
+The SM SM501 is a LCD controller, with proper hardware, it can also
+drive DVI monitors.
+
+Required properties:
+- compatible : should be "smi,sm501".
+- reg : contain two entries:
+ - First entry: System Configuration register
+ - Second entry: IO space (Display Controller register)
+- interrupts : SMI interrupt to the cpu should be described here.
+- interrupt-parent : the phandle for the interrupt controller that
+ services interrupts for this device.
+
+Optional properties:
+- mode : select a video mode:
+ <xres>x<yres>[-<bpp>][@<refresh>]
+- edid : verbatim EDID data block describing attached display.
+ Data from the detailed timing descriptor will be used to
+ program the display controller.
+- little-endian: available on big endian systems, to
+ set different foreign endian.
+- big-endian: available on little endian systems, to
+ set different foreign endian.
+- smi,devices: function block enable bitmap.
+ bit0: USB host
+ bit1: USB slave
+ bit2: SSP Ch0
+ bit3: SSP Ch1
+ bit4: UART Ch0
+ bit5: UART Ch1
+ bit6: Accelerator
+ bit7: AC97
+ bit8: I2S
+ bit9: GPIO
+
+Example for MPC5200:
+ display@1,0 {
+ compatible = "smi,sm501";
+ reg = <1 0x00000000 0x00800000
+ 1 0x03e00000 0x00200000>;
+ interrupts = <1 1 3>;
+ mode = "640x480-32@60";
+ edid = [edid-data];
+ };
diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c
index 65cd0d2..e2e3f9b 100644
--- a/drivers/mfd/sm501.c
+++ b/drivers/mfd/sm501.c
@@ -21,6 +21,7 @@
#include <linux/pci.h>
#include <linux/i2c-gpio.h>
#include <linux/slab.h>
+#include <linux/of.h>
#include <linux/sm501.h>
#include <linux/sm501-regs.h>
@@ -1377,6 +1378,8 @@ static int sm501_plat_probe(struct platform_device *dev)
{
struct sm501_devdata *sm;
int ret;
+ struct sm501_platdata private_platdata;
+ struct sm501_initdata private_initdata;
sm = kzalloc(sizeof(struct sm501_devdata), GFP_KERNEL);
if (sm == NULL) {
@@ -1388,6 +1391,12 @@ static int sm501_plat_probe(struct platform_device *dev)
sm->dev = &dev->dev;
sm->pdev_id = dev->id;
sm->platdata = dev_get_platdata(&dev->dev);
+ if (!sm->platdata) {
+ of_property_read_u32(dev->dev.of_node, "smi,devices",
+ (u32 *)&private_initdata.devices);
+ private_platdata.init = &private_initdata;
+ sm->platdata = &private_platdata;
+ }
ret = platform_get_irq(dev, 0);
if (ret < 0) {
--
2.7.0
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