On Thu, Jun 30, 2016 at 01:56:59AM +0900, Yoshinori Sato wrote: > 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. There is already a binding doc in bindings/display/ > + > +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 > > -- > To unsubscribe from this list: send the line "unsubscribe devicetree" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html