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authorLinus Torvalds <torvalds@linux-foundation.org>2012-07-26 10:23:47 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-07-26 10:23:47 -0700
commit9fc377799bc9bfd8d5cb35d0d1ea2e2458cbdbb3 (patch)
treefe93603b4e33dd50ff5f95ff769a0748b230cdf9 /drivers/usb/host/ohci-nxp.c
parent5e23ae49960d05f578a73ecd19749c45af682c2b (diff)
parente387ef5c47ddeaeaa3cbdc54424cdb7a28dae2c0 (diff)
Merge tag 'usb-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB patches from Greg Kroah-Hartman: "Here's the big USB patch set for the 3.6-rc1 merge window. Lots of little changes in here, primarily for gadget controllers and drivers. There's some scsi changes that I think also went in through the scsi tree, but they merge just fine. All of these patches have been in the linux-next tree for a while now. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" Fix up trivial conflicts in include/scsi/scsi_device.h (same libata conflict that Jeff had already encountered) * tag 'usb-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (207 commits) usb: Add USB_QUIRK_RESET_RESUME for all Logitech UVC webcams usb: Add quirk detection based on interface information usb: s3c-hsotg: Add header file protection macros in s3c-hsotg.h USB: ehci-s5p: Add vbus setup function to the s5p ehci glue layer USB: add USB_VENDOR_AND_INTERFACE_INFO() macro USB: notify phy when root hub port connect change USB: remove 8 bytes of padding from usb_host_interface on 64 bit builds USB: option: add ZTE MF821D USB: sierra: QMI mode MC7710 moved to qcserial USB: qcserial: adding Sierra Wireless devices USB: qcserial: support generic Qualcomm serial ports USB: qcserial: make probe more flexible USB: qcserial: centralize probe exit path USB: qcserial: consolidate usb_set_interface calls USB: ehci-s5p: Add support for device tree USB: ohci-exynos: Add support for device tree USB: ehci-omap: fix compile failure(v1) usb: host: tegra: pass correct pointer in ehci_setup() USB: ehci-fsl: Update ifdef check to work on 64-bit ppc USB: serial: keyspan: Removed unrequired parentheses. ...
Diffstat (limited to 'drivers/usb/host/ohci-nxp.c')
-rw-r--r--drivers/usb/host/ohci-nxp.c88
1 files changed, 55 insertions, 33 deletions
diff --git a/drivers/usb/host/ohci-nxp.c b/drivers/usb/host/ohci-nxp.c
index 1e364ec962fb..a446386bf779 100644
--- a/drivers/usb/host/ohci-nxp.c
+++ b/drivers/usb/host/ohci-nxp.c
@@ -43,16 +43,6 @@
#define USB_HOST_NEED_CLK_EN (1 << 21)
#define PAD_CONTROL_LAST_DRIVEN (1 << 19)
-#define USB_OTG_CLK_CTRL IO_ADDRESS(USB_CONFIG_BASE + 0xFF4)
-#define USB_OTG_CLK_STAT IO_ADDRESS(USB_CONFIG_BASE + 0xFF8)
-
-/* USB_OTG_CLK_CTRL bit defines */
-#define AHB_M_CLOCK_ON (1 << 4)
-#define OTG_CLOCK_ON (1 << 3)
-#define I2C_CLOCK_ON (1 << 2)
-#define DEV_CLOCK_ON (1 << 1)
-#define HOST_CLOCK_ON (1 << 0)
-
#define USB_OTG_STAT_CONTROL IO_ADDRESS(USB_CONFIG_BASE + 0x110)
/* USB_OTG_STAT_CONTROL bit defines */
@@ -72,7 +62,9 @@ static struct i2c_client *isp1301_i2c_client;
extern int usb_disabled(void);
-static struct clk *usb_clk;
+static struct clk *usb_pll_clk;
+static struct clk *usb_dev_clk;
+static struct clk *usb_otg_clk;
static void isp1301_configure_pnx4008(void)
{
@@ -249,8 +241,6 @@ static const struct hc_driver ohci_nxp_hc_driver = {
.start_port_reset = ohci_start_port_reset,
};
-#define USB_CLOCK_MASK (AHB_M_CLOCK_ON| OTG_CLOCK_ON | HOST_CLOCK_ON | I2C_CLOCK_ON)
-
static void nxp_set_usb_bits(void)
{
if (machine_is_pnx4008()) {
@@ -327,41 +317,63 @@ static int __devinit usb_hcd_nxp_probe(struct platform_device *pdev)
/* Enable AHB slave USB clock, needed for further USB clock control */
__raw_writel(USB_SLAVE_HCLK_EN | PAD_CONTROL_LAST_DRIVEN, USB_CTRL);
- isp1301_configure();
-
/* Enable USB PLL */
- usb_clk = clk_get(&pdev->dev, "ck_pll5");
- if (IS_ERR(usb_clk)) {
+ usb_pll_clk = clk_get(&pdev->dev, "ck_pll5");
+ if (IS_ERR(usb_pll_clk)) {
dev_err(&pdev->dev, "failed to acquire USB PLL\n");
- ret = PTR_ERR(usb_clk);
+ ret = PTR_ERR(usb_pll_clk);
goto out1;
}
- ret = clk_enable(usb_clk);
+ ret = clk_enable(usb_pll_clk);
if (ret < 0) {
dev_err(&pdev->dev, "failed to start USB PLL\n");
goto out2;
}
- ret = clk_set_rate(usb_clk, 48000);
+ ret = clk_set_rate(usb_pll_clk, 48000);
if (ret < 0) {
dev_err(&pdev->dev, "failed to set USB clock rate\n");
goto out3;
}
+ /* Enable USB device clock */
+ usb_dev_clk = clk_get(&pdev->dev, "ck_usbd");
+ if (IS_ERR(usb_dev_clk)) {
+ dev_err(&pdev->dev, "failed to acquire USB DEV Clock\n");
+ ret = PTR_ERR(usb_dev_clk);
+ goto out4;
+ }
+
+ ret = clk_enable(usb_dev_clk);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "failed to start USB DEV Clock\n");
+ goto out5;
+ }
+
+ /* Enable USB otg clocks */
+ usb_otg_clk = clk_get(&pdev->dev, "ck_usb_otg");
+ if (IS_ERR(usb_otg_clk)) {
+ dev_err(&pdev->dev, "failed to acquire USB DEV Clock\n");
+ ret = PTR_ERR(usb_dev_clk);
+ goto out6;
+ }
+
__raw_writel(__raw_readl(USB_CTRL) | USB_HOST_NEED_CLK_EN, USB_CTRL);
- /* Set to enable all needed USB clocks */
- __raw_writel(USB_CLOCK_MASK, USB_OTG_CLK_CTRL);
+ ret = clk_enable(usb_otg_clk);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "failed to start USB DEV Clock\n");
+ goto out7;
+ }
- while ((__raw_readl(USB_OTG_CLK_STAT) & USB_CLOCK_MASK) !=
- USB_CLOCK_MASK) ;
+ isp1301_configure();
hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev));
if (!hcd) {
dev_err(&pdev->dev, "Failed to allocate HC buffer\n");
ret = -ENOMEM;
- goto out3;
+ goto out8;
}
/* Set all USB bits in the Start Enable register */
@@ -371,14 +383,14 @@ static int __devinit usb_hcd_nxp_probe(struct platform_device *pdev)
if (!res) {
dev_err(&pdev->dev, "Failed to get MEM resource\n");
ret = -ENOMEM;
- goto out4;
+ goto out8;
}
hcd->regs = devm_request_and_ioremap(&pdev->dev, res);
if (!hcd->regs) {
dev_err(&pdev->dev, "Failed to devm_request_and_ioremap\n");
ret = -ENOMEM;
- goto out4;
+ goto out8;
}
hcd->rsrc_start = res->start;
hcd->rsrc_len = resource_size(res);
@@ -386,7 +398,7 @@ static int __devinit usb_hcd_nxp_probe(struct platform_device *pdev)
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
ret = -ENXIO;
- goto out4;
+ goto out8;
}
nxp_start_hc();
@@ -400,13 +412,21 @@ static int __devinit usb_hcd_nxp_probe(struct platform_device *pdev)
return ret;
nxp_stop_hc();
-out4:
+out8:
nxp_unset_usb_bits();
usb_put_hcd(hcd);
+out7:
+ clk_disable(usb_otg_clk);
+out6:
+ clk_put(usb_otg_clk);
+out5:
+ clk_disable(usb_dev_clk);
+out4:
+ clk_put(usb_dev_clk);
out3:
- clk_disable(usb_clk);
+ clk_disable(usb_pll_clk);
out2:
- clk_put(usb_clk);
+ clk_put(usb_pll_clk);
out1:
isp1301_i2c_client = NULL;
out:
@@ -422,8 +442,10 @@ static int usb_hcd_nxp_remove(struct platform_device *pdev)
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
usb_put_hcd(hcd);
nxp_unset_usb_bits();
- clk_disable(usb_clk);
- clk_put(usb_clk);
+ clk_disable(usb_pll_clk);
+ clk_put(usb_pll_clk);
+ clk_disable(usb_dev_clk);
+ clk_put(usb_dev_clk);
i2c_unregister_device(isp1301_i2c_client);
isp1301_i2c_client = NULL;