[PATCH RESEND v2] mfd: sm501: Add device property
STALE3745d
From: Yoshinori Sato <hidden>
Date: 2016-06-29 16:57:06
Also in:
lkml
Subsystem:
multifunction devices (mfd), open firmware and flattened device tree bindings, the rest · Maintainers:
Lee Jones, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Signed-off-by: Yoshinori Sato <redacted> --- 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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