diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-07-26 10:23:47 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-07-26 10:23:47 -0700 |
commit | 9fc377799bc9bfd8d5cb35d0d1ea2e2458cbdbb3 (patch) | |
tree | fe93603b4e33dd50ff5f95ff769a0748b230cdf9 /drivers/usb/host/ohci-nxp.c | |
parent | 5e23ae49960d05f578a73ecd19749c45af682c2b (diff) | |
parent | e387ef5c47ddeaeaa3cbdc54424cdb7a28dae2c0 (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.c | 88 |
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; |