diff options
author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2013-08-20 16:35:47 (GMT) |
---|---|---|
committer | Felipe Balbi <balbi@ti.com> | 2013-08-27 19:18:32 (GMT) |
commit | c031a7d419340f30e66dc18fab4373ad646ca7e6 (patch) | |
tree | 35157398d0314f6b36355046c443ab540ca0860f /drivers/usb | |
parent | a0b311ef17fb5d98e2c8d0aee450c1b9030873e0 (diff) | |
download | linux-fsl-qoriq-c031a7d419340f30e66dc18fab4373ad646ca7e6.tar.xz |
usb: usb: dsps: update code according to the binding document
This relfects the code and dts requires changes due to recent .dts
binding updates:
- use mg prefix for the Metor Graphics specific attributes
- use power in mA not in mA/2 as specifed in the USB2.0 specification
- remove the child node for USB. This is driver specific on won't be
reflected in the device tree
- use the "mentor" prefix instead of "mg".
- use "dr_mode" istead of "mg,port-mode" for the port mode. The former
is used by a few other drivers.
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: devicetree@vger.kernel.org
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb')
-rw-r--r-- | drivers/usb/musb/musb_dsps.c | 54 |
1 files changed, 36 insertions, 18 deletions
diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c index 4ad52e7..4ead0f5 100644 --- a/drivers/usb/musb/musb_dsps.c +++ b/drivers/usb/musb/musb_dsps.c @@ -44,6 +44,7 @@ #include <linux/of_device.h> #include <linux/of_address.h> #include <linux/of_irq.h> +#include <linux/usb/of.h> #include "musb_core.h" @@ -425,35 +426,51 @@ static int get_int_prop(struct device_node *dn, const char *s) return val; } +static int get_musb_port_mode(struct device *dev) +{ + enum usb_dr_mode mode; + + mode = of_usb_get_dr_mode(dev->of_node); + switch (mode) { + case USB_DR_MODE_HOST: + return MUSB_PORT_MODE_HOST; + + case USB_DR_MODE_PERIPHERAL: + return MUSB_PORT_MODE_GADGET; + + case USB_DR_MODE_UNKNOWN: + case USB_DR_MODE_OTG: + default: + return MUSB_PORT_MODE_DUAL_ROLE; + }; +} + static int dsps_create_musb_pdev(struct dsps_glue *glue, struct platform_device *parent) { struct musb_hdrc_platform_data pdata; struct resource resources[2]; + struct resource *res; struct device *dev = &parent->dev; struct musb_hdrc_config *config; struct platform_device *musb; struct device_node *dn = parent->dev.of_node; - struct device_node *child_node; int ret; - child_node = of_get_child_by_name(dn, "usb"); - if (!child_node) - return -EINVAL; - memset(resources, 0, sizeof(resources)); - ret = of_address_to_resource(child_node, 0, &resources[0]); - if (ret) { + res = platform_get_resource_byname(parent, IORESOURCE_MEM, "mc"); + if (!res) { dev_err(dev, "failed to get memory.\n"); - return ret; + return -EINVAL; } + resources[0] = *res; - ret = of_irq_to_resource(child_node, 0, &resources[1]); - if (ret == 0) { + res = platform_get_resource_byname(parent, IORESOURCE_IRQ, "mc"); + if (!res) { dev_err(dev, "failed to get irq.\n"); - ret = -EINVAL; - return ret; + return -EINVAL; } + resources[1] = *res; /* allocate the child platform device */ musb = platform_device_alloc("musb-hdrc", PLATFORM_DEVID_AUTO); @@ -465,7 +482,7 @@ static int dsps_create_musb_pdev(struct dsps_glue *glue, musb->dev.parent = dev; musb->dev.dma_mask = &musb_dmamask; musb->dev.coherent_dma_mask = musb_dmamask; - musb->dev.of_node = of_node_get(child_node); + musb->dev.of_node = of_node_get(dn); glue->musb = musb; @@ -485,11 +502,12 @@ static int dsps_create_musb_pdev(struct dsps_glue *glue, pdata.config = config; pdata.platform_ops = &dsps_ops; - config->num_eps = get_int_prop(child_node, "num-eps"); - config->ram_bits = get_int_prop(child_node, "ram-bits"); - pdata.mode = get_int_prop(child_node, "port-mode"); - pdata.power = get_int_prop(child_node, "power"); - config->multipoint = of_property_read_bool(child_node, "multipoint"); + config->num_eps = get_int_prop(dn, "mentor,num-eps"); + config->ram_bits = get_int_prop(dn, "mentor,ram-bits"); + pdata.mode = get_musb_port_mode(dev); + /* DT keeps this entry in mA, musb expects it as per USB spec */ + pdata.power = get_int_prop(dn, "mentor,power") / 2; + config->multipoint = of_property_read_bool(dn, "mentor,multipoint"); ret = platform_device_add_data(musb, &pdata, sizeof(pdata)); if (ret) { |