VERSION = 3
PATCHLEVEL = 14
- SUBLEVEL = 25
+ SUBLEVEL = 26
-EXTRAVERSION =
+EXTRAVERSION = -ltsi
NAME = Remembering Coco
# *DOCUMENTATION*
static const char hcd_name[] = "xhci_hcd";
+static struct hc_driver __read_mostly xhci_pci_hc_driver;
+
/* called after powerup, by probe or system-pm "wakeup" */
static int xhci_pci_reinit(struct xhci_hcd *xhci, struct pci_dev *pdev)
{
if (xhci_compliance_mode_recovery_timer_quirk_check())
pdev->no_d3cold = true;
- return xhci_suspend(xhci);
+ return xhci_suspend(xhci, do_wakeup);
}
static int xhci_pci_resume(struct usb_hcd *hcd, bool hibernated)
}
#endif /* CONFIG_PM */
-static const struct hc_driver xhci_pci_hc_driver = {
- .description = hcd_name,
- .product_desc = "xHCI Host Controller",
- .hcd_priv_size = sizeof(struct xhci_hcd *),
-
- /*
- * generic hardware linkage
- */
- .irq = xhci_irq,
- .flags = HCD_MEMORY | HCD_USB3 | HCD_SHARED,
-
- /*
- * basic lifecycle operations
- */
- .reset = xhci_pci_setup,
- .start = xhci_run,
-#ifdef CONFIG_PM
- .pci_suspend = xhci_pci_suspend,
- .pci_resume = xhci_pci_resume,
-#endif
- .stop = xhci_stop,
- .shutdown = xhci_shutdown,
-
- /*
- * managing i/o requests and associated device resources
- */
- .urb_enqueue = xhci_urb_enqueue,
- .urb_dequeue = xhci_urb_dequeue,
- .alloc_dev = xhci_alloc_dev,
- .free_dev = xhci_free_dev,
- .alloc_streams = xhci_alloc_streams,
- .free_streams = xhci_free_streams,
- .add_endpoint = xhci_add_endpoint,
- .drop_endpoint = xhci_drop_endpoint,
- .endpoint_reset = xhci_endpoint_reset,
- .check_bandwidth = xhci_check_bandwidth,
- .reset_bandwidth = xhci_reset_bandwidth,
- .address_device = xhci_address_device,
- .enable_device = xhci_enable_device,
- .update_hub_device = xhci_update_hub_device,
- .reset_device = xhci_discover_or_reset_device,
-
- /*
- * scheduling support
- */
- .get_frame_number = xhci_get_frame,
-
- /* Root hub support */
- .hub_control = xhci_hub_control,
- .hub_status_data = xhci_hub_status_data,
- .bus_suspend = xhci_bus_suspend,
- .bus_resume = xhci_bus_resume,
- /*
- * call back when device connected and addressed
- */
- .update_device = xhci_update_device,
- .set_usb2_hw_lpm = xhci_set_usb2_hardware_lpm,
- .enable_usb3_lpm_timeout = xhci_enable_usb3_lpm_timeout,
- .disable_usb3_lpm_timeout = xhci_disable_usb3_lpm_timeout,
- .find_raw_port_number = xhci_find_raw_port_number,
-};
-
/*-------------------------------------------------------------------------*/
/* PCI driver selection metadata; PCI hotplugging uses this */
int __init xhci_register_pci(void)
{
+ xhci_init_driver(&xhci_pci_hc_driver, xhci_pci_setup);
+#ifdef CONFIG_PM
+ xhci_pci_hc_driver.pci_suspend = xhci_pci_suspend;
+ xhci_pci_hc_driver.pci_resume = xhci_pci_resume;
+#endif
return pci_register_driver(&xhci_pci_driver);
}
* version 2 as published by the Free Software Foundation.
*/
-#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/dma-mapping.h>
#include <linux/module.h>
-#include <linux/slab.h>
#include <linux/of.h>
-#include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/usb/xhci_pdriver.h>
#include "xhci.h"
+#include "xhci-mvebu.h"
+#include "xhci-rcar.h"
+
+static struct hc_driver __read_mostly xhci_plat_hc_driver;
static void xhci_plat_quirks(struct device *dev, struct xhci_hcd *xhci)
{
/* called during probe() after chip reset completes */
static int xhci_plat_setup(struct usb_hcd *hcd)
{
+ struct device_node *of_node = hcd->self.controller->of_node;
+ int ret;
+
+ if (of_device_is_compatible(of_node, "renesas,xhci-r8a7790") ||
+ of_device_is_compatible(of_node, "renesas,xhci-r8a7791")) {
+ ret = xhci_rcar_init_quirk(hcd);
+ if (ret)
+ return ret;
+ }
+
return xhci_gen_setup(hcd, xhci_plat_quirks);
}
-static const struct hc_driver xhci_plat_xhci_driver = {
- .description = "xhci-hcd",
- .product_desc = "xHCI Host Controller",
- .hcd_priv_size = sizeof(struct xhci_hcd *),
-
- /*
- * generic hardware linkage
- */
- .irq = xhci_irq,
- .flags = HCD_MEMORY | HCD_USB3 | HCD_SHARED,
-
- /*
- * basic lifecycle operations
- */
- .reset = xhci_plat_setup,
- .start = xhci_run,
- .stop = xhci_stop,
- .shutdown = xhci_shutdown,
+static int xhci_plat_start(struct usb_hcd *hcd)
+{
+ struct device_node *of_node = hcd->self.controller->of_node;
- /*
- * managing i/o requests and associated device resources
- */
- .urb_enqueue = xhci_urb_enqueue,
- .urb_dequeue = xhci_urb_dequeue,
- .alloc_dev = xhci_alloc_dev,
- .free_dev = xhci_free_dev,
- .alloc_streams = xhci_alloc_streams,
- .free_streams = xhci_free_streams,
- .add_endpoint = xhci_add_endpoint,
- .drop_endpoint = xhci_drop_endpoint,
- .endpoint_reset = xhci_endpoint_reset,
- .check_bandwidth = xhci_check_bandwidth,
- .reset_bandwidth = xhci_reset_bandwidth,
- .address_device = xhci_address_device,
- .enable_device = xhci_enable_device,
- .update_hub_device = xhci_update_hub_device,
- .reset_device = xhci_discover_or_reset_device,
+ if (of_device_is_compatible(of_node, "renesas,xhci-r8a7790") ||
+ of_device_is_compatible(of_node, "renesas,xhci-r8a7791"))
+ xhci_rcar_start(hcd);
- /*
- * scheduling support
- */
- .get_frame_number = xhci_get_frame,
-
- /* Root hub support */
- .hub_control = xhci_hub_control,
- .hub_status_data = xhci_hub_status_data,
- .bus_suspend = xhci_bus_suspend,
- .bus_resume = xhci_bus_resume,
-};
+ return xhci_run(hcd);
+}
static int xhci_plat_probe(struct platform_device *pdev)
{
+ struct device_node *node = pdev->dev.of_node;
+ struct usb_xhci_pdata *pdata = dev_get_platdata(&pdev->dev);
const struct hc_driver *driver;
struct xhci_hcd *xhci;
struct resource *res;
struct usb_hcd *hcd;
+ struct clk *clk;
int ret;
int irq;
if (usb_disabled())
return -ENODEV;
- driver = &xhci_plat_xhci_driver;
+ driver = &xhci_plat_hc_driver;
irq = platform_get_irq(pdev, 0);
if (irq < 0)
if (!res)
return -ENODEV;
+ if (of_device_is_compatible(pdev->dev.of_node,
+ "marvell,armada-375-xhci") ||
+ of_device_is_compatible(pdev->dev.of_node,
+ "marvell,armada-380-xhci")) {
+ ret = xhci_mvebu_mbus_init_quirk(pdev);
+ if (ret)
+ return ret;
+ }
+
/* Initialize dma_mask and coherent_dma_mask to 32-bits */
ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
if (ret)
hcd->rsrc_start = res->start;
hcd->rsrc_len = resource_size(res);
- if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len,
- driver->description)) {
- dev_dbg(&pdev->dev, "controller already in use\n");
- ret = -EBUSY;
+ hcd->regs = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(hcd->regs)) {
+ ret = PTR_ERR(hcd->regs);
goto put_hcd;
}
- hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len);
- if (!hcd->regs) {
- dev_dbg(&pdev->dev, "error mapping memory\n");
- ret = -EFAULT;
- goto release_mem_region;
+ /*
+ * Not all platforms have a clk so it is not an error if the
+ * clock does not exists.
+ */
+ clk = devm_clk_get(&pdev->dev, NULL);
+ if (!IS_ERR(clk)) {
+ ret = clk_prepare_enable(clk);
+ if (ret)
+ goto put_hcd;
}
ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
if (ret)
- goto unmap_registers;
+ goto disable_clk;
+
device_wakeup_enable(hcd->self.controller);
/* USB 2.0 roothub is stored in the platform_device now. */
hcd = platform_get_drvdata(pdev);
xhci = hcd_to_xhci(hcd);
+ xhci->clk = clk;
xhci->shared_hcd = usb_create_shared_hcd(driver, &pdev->dev,
dev_name(&pdev->dev), hcd);
if (!xhci->shared_hcd) {
goto dealloc_usb2_hcd;
}
+ if ((node && of_property_read_bool(node, "usb3-lpm-capable")) ||
+ (pdata && pdata->usb3_lpm_capable))
+ xhci->quirks |= XHCI_LPM_SUPPORT;
/*
* Set the xHCI pointer before xhci_plat_setup() (aka hcd_driver.reset)
* is called by usb_add_hcd().
dealloc_usb2_hcd:
usb_remove_hcd(hcd);
-unmap_registers:
- iounmap(hcd->regs);
-
-release_mem_region:
- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+disable_clk:
+ if (!IS_ERR(clk))
+ clk_disable_unprepare(clk);
put_hcd:
usb_put_hcd(hcd);
{
struct usb_hcd *hcd = platform_get_drvdata(dev);
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
+ struct clk *clk = xhci->clk;
usb_remove_hcd(xhci->shared_hcd);
usb_put_hcd(xhci->shared_hcd);
usb_remove_hcd(hcd);
- iounmap(hcd->regs);
- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+ if (!IS_ERR(clk))
+ clk_disable_unprepare(clk);
usb_put_hcd(hcd);
kfree(xhci);
return 0;
}
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
static int xhci_plat_suspend(struct device *dev)
{
struct usb_hcd *hcd = dev_get_drvdata(dev);
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
- return xhci_suspend(xhci);
+ /*
+ * xhci_suspend() needs `do_wakeup` to know whether host is allowed
+ * to do wakeup during suspend. Since xhci_plat_suspend is currently
+ * only designed for system suspend, device_may_wakeup() is enough
+ * to dertermine whether host is allowed to do wakeup. Need to
+ * reconsider this when xhci_plat_suspend enlarges its scope, e.g.,
+ * also applies to runtime suspend.
+ */
+ return xhci_suspend(xhci, device_may_wakeup(dev));
}
static int xhci_plat_resume(struct device *dev)
#ifdef CONFIG_OF
static const struct of_device_id usb_xhci_of_match[] = {
+ { .compatible = "generic-xhci" },
{ .compatible = "xhci-platform" },
+ { .compatible = "marvell,armada-375-xhci"},
+ { .compatible = "marvell,armada-380-xhci"},
+ { .compatible = "renesas,xhci-r8a7790"},
+ { .compatible = "renesas,xhci-r8a7791"},
{ },
};
MODULE_DEVICE_TABLE(of, usb_xhci_of_match);
int xhci_register_plat(void)
{
+ xhci_init_driver(&xhci_plat_hc_driver, xhci_plat_setup);
+ xhci_plat_hc_driver.start = xhci_plat_start;
return platform_driver_register(&usb_xhci_driver);
}
#define DRIVER_AUTHOR "Sarah Sharp"
#define DRIVER_DESC "'eXtensible' Host Controller (xHC) Driver"
+ #define PORT_WAKE_BITS (PORT_WKOC_E | PORT_WKDISC_E | PORT_WKCONN_E)
+
/* Some 0.95 hardware can't handle the chain bit on a Link TRB being cleared */
static int link_quirk;
module_param(link_quirk, int, S_IRUGO | S_IWUSR);
xhci_set_cmd_ring_deq(xhci);
}
+ static void xhci_disable_port_wake_on_bits(struct xhci_hcd *xhci)
+ {
+ int port_index;
+ __le32 __iomem **port_array;
+ unsigned long flags;
+ u32 t1, t2;
+
+ spin_lock_irqsave(&xhci->lock, flags);
+
+ /* disble usb3 ports Wake bits*/
+ port_index = xhci->num_usb3_ports;
+ port_array = xhci->usb3_ports;
+ while (port_index--) {
+ t1 = readl(port_array[port_index]);
+ t1 = xhci_port_state_to_neutral(t1);
+ t2 = t1 & ~PORT_WAKE_BITS;
+ if (t1 != t2)
+ writel(t2, port_array[port_index]);
+ }
+
+ /* disble usb2 ports Wake bits*/
+ port_index = xhci->num_usb2_ports;
+ port_array = xhci->usb2_ports;
+ while (port_index--) {
+ t1 = readl(port_array[port_index]);
+ t1 = xhci_port_state_to_neutral(t1);
+ t2 = t1 & ~PORT_WAKE_BITS;
+ if (t1 != t2)
+ writel(t2, port_array[port_index]);
+ }
+
+ spin_unlock_irqrestore(&xhci->lock, flags);
+ }
+
/*
* Stop HC (not bus-specific)
*
* This is called when the machine transition into S3/S4 mode.
*
*/
- int xhci_suspend(struct xhci_hcd *xhci)
+ int xhci_suspend(struct xhci_hcd *xhci, bool do_wakeup)
{
int rc = 0;
unsigned int delay = XHCI_MAX_HALT_USEC;
xhci->shared_hcd->state != HC_STATE_SUSPENDED)
return -EINVAL;
+ /* Clear root port wake on bits if wakeup not allowed. */
+ if (!do_wakeup)
+ xhci_disable_port_wake_on_bits(xhci);
+
/* Don't poll the roothubs on bus suspend. */
xhci_dbg(xhci, "%s: stopping port polling.\n", __func__);
clear_bit(HCD_FLAG_POLL_RH, &hcd->flags);
return retval;
}
+static const struct hc_driver xhci_hc_driver = {
+ .description = "xhci-hcd",
+ .product_desc = "xHCI Host Controller",
+ .hcd_priv_size = sizeof(struct xhci_hcd *),
+
+ /*
+ * generic hardware linkage
+ */
+ .irq = xhci_irq,
+ .flags = HCD_MEMORY | HCD_USB3 | HCD_SHARED,
+
+ /*
+ * basic lifecycle operations
+ */
+ .reset = NULL, /* set in xhci_init_driver() */
+ .start = xhci_run,
+ .stop = xhci_stop,
+ .shutdown = xhci_shutdown,
+
+ /*
+ * managing i/o requests and associated device resources
+ */
+ .urb_enqueue = xhci_urb_enqueue,
+ .urb_dequeue = xhci_urb_dequeue,
+ .alloc_dev = xhci_alloc_dev,
+ .free_dev = xhci_free_dev,
+ .alloc_streams = xhci_alloc_streams,
+ .free_streams = xhci_free_streams,
+ .add_endpoint = xhci_add_endpoint,
+ .drop_endpoint = xhci_drop_endpoint,
+ .endpoint_reset = xhci_endpoint_reset,
+ .check_bandwidth = xhci_check_bandwidth,
+ .reset_bandwidth = xhci_reset_bandwidth,
+ .address_device = xhci_address_device,
+ .enable_device = xhci_enable_device,
+ .update_hub_device = xhci_update_hub_device,
+ .reset_device = xhci_discover_or_reset_device,
+
+ /*
+ * scheduling support
+ */
+ .get_frame_number = xhci_get_frame,
+
+ /*
+ * root hub support
+ */
+ .hub_control = xhci_hub_control,
+ .hub_status_data = xhci_hub_status_data,
+ .bus_suspend = xhci_bus_suspend,
+ .bus_resume = xhci_bus_resume,
+
+ /*
+ * call back when device connected and addressed
+ */
+ .update_device = xhci_update_device,
+ .set_usb2_hw_lpm = xhci_set_usb2_hardware_lpm,
+ .enable_usb3_lpm_timeout = xhci_enable_usb3_lpm_timeout,
+ .disable_usb3_lpm_timeout = xhci_disable_usb3_lpm_timeout,
+ .find_raw_port_number = xhci_find_raw_port_number,
+};
+
+void xhci_init_driver(struct hc_driver *drv, int (*setup_fn)(struct usb_hcd *))
+{
+ BUG_ON(!setup_fn);
+ *drv = xhci_hc_driver;
+ drv->reset = setup_fn;
+}
+EXPORT_SYMBOL_GPL(xhci_init_driver);
+
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_LICENSE("GPL");
/* msi-x vectors */
int msix_count;
struct msix_entry *msix_entries;
+ /* optional clock */
+ struct clk *clk;
/* data structures */
struct xhci_device_context_array *dcbaa;
struct xhci_ring *cmd_ring;
void xhci_stop(struct usb_hcd *hcd);
void xhci_shutdown(struct usb_hcd *hcd);
int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks);
+void xhci_init_driver(struct hc_driver *drv, int (*setup_fn)(struct usb_hcd *));
#ifdef CONFIG_PM
- int xhci_suspend(struct xhci_hcd *xhci);
+ int xhci_suspend(struct xhci_hcd *xhci, bool do_wakeup);
int xhci_resume(struct xhci_hcd *xhci, bool hibernated);
#else
#define xhci_suspend NULL
*/
struct dma_chan *chan;
struct work_struct work;
- dma_addr_t dma;
int dma_id;
int loop_cnt;
int additional_pos;
*/
static int fsi_dma_init(struct fsi_priv *fsi, struct fsi_stream *io)
{
- struct snd_pcm_runtime *runtime = io->substream->runtime;
- struct snd_soc_dai *dai = fsi_get_dai(io->substream);
- enum dma_data_direction dir = fsi_stream_is_play(fsi, io) ?
- DMA_TO_DEVICE : DMA_FROM_DEVICE;
-
/*
* 24bit data : 24bit bus / package in back
* 16bit data : 16bit bus / stream mode
io->loop_cnt = 2; /* push 1st, 2nd period first, then 3rd, 4th... */
io->additional_pos = 0;
- io->dma = dma_map_single(dai->dev, runtime->dma_area,
- snd_pcm_lib_buffer_bytes(io->substream), dir);
- return 0;
-}
-
-static int fsi_dma_quit(struct fsi_priv *fsi, struct fsi_stream *io)
-{
- struct snd_soc_dai *dai = fsi_get_dai(io->substream);
- enum dma_data_direction dir = fsi_stream_is_play(fsi, io) ?
- DMA_TO_DEVICE : DMA_FROM_DEVICE;
- dma_unmap_single(dai->dev, io->dma,
- snd_pcm_lib_buffer_bytes(io->substream), dir);
return 0;
}
if (period >= runtime->periods)
period = 0;
- return io->dma + samples_to_bytes(runtime, period * io->period_samples);
+ return runtime->dma_addr +
+ samples_to_bytes(runtime, period * io->period_samples);
}
static void fsi_dma_complete(void *data)
struct fsi_stream *io = (struct fsi_stream *)data;
struct fsi_priv *fsi = fsi_stream_to_priv(io);
struct snd_pcm_runtime *runtime = io->substream->runtime;
- struct snd_soc_dai *dai = fsi_get_dai(io->substream);
- enum dma_data_direction dir = fsi_stream_is_play(fsi, io) ?
- DMA_TO_DEVICE : DMA_FROM_DEVICE;
-
- dma_sync_single_for_cpu(dai->dev, fsi_dma_get_area(io, 0),
- samples_to_bytes(runtime, io->period_samples), dir);
io->buff_sample_pos += io->period_samples;
io->period_pos++;
for (i = 0; i < io->loop_cnt; i++) {
buf = fsi_dma_get_area(io, io->additional_pos);
- dma_sync_single_for_device(dai->dev, buf, len, dir);
-
desc = dmaengine_prep_slave_single(io->chan, buf, len, dir,
DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
if (!desc) {
static struct fsi_stream_handler fsi_dma_push_handler = {
.init = fsi_dma_init,
- .quit = fsi_dma_quit,
.probe = fsi_dma_probe,
.transfer = fsi_dma_transfer,
.remove = fsi_dma_remove,
/* set master/slave audio interface */
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBM_CFM:
- fsi->clk_master = 1;
break;
case SND_SOC_DAIFMT_CBS_CFS:
+ fsi->clk_master = 1; /* codec is slave, cpu is master */
break;
default:
return -EINVAL;
static struct snd_pcm_hardware fsi_pcm_hardware = {
.info = SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_MMAP |
- SNDRV_PCM_INFO_MMAP_VALID |
- SNDRV_PCM_INFO_PAUSE,
+ SNDRV_PCM_INFO_MMAP_VALID,
.buffer_bytes_max = 64 * 1024,
.period_bytes_min = 32,
.period_bytes_max = 8192,
static int fsi_pcm_new(struct snd_soc_pcm_runtime *rtd)
{
- struct snd_pcm *pcm = rtd->pcm;
-
- /*
- * dont use SNDRV_DMA_TYPE_DEV, since it will oops the SH kernel
- * in MMAP mode (i.e. aplay -M)
- */
return snd_pcm_lib_preallocate_pages_for_all(
- pcm,
- SNDRV_DMA_TYPE_CONTINUOUS,
- snd_dma_continuous_data(GFP_KERNEL),
+ rtd->pcm,
+ SNDRV_DMA_TYPE_DEV,
+ rtd->card->snd_card->dev,
PREALLOC_BUFFER, PREALLOC_BUFFER_MAX);
}
projects / platform / adaptation / renesas_rcar / renesas_kernel.git / commitdiff