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USB: ohci-nxp: Use isp1301 driver
ohci-nxp duplicates the isp1301 driver. This patch removes this code and makes ohci-nxp use the new separate isp1301 driver instead. Signed-off-by: Roland Stigge <stigge@antcom.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Roland Stigge
Greg Kroah-Hartman
parent
24a28e4283
commit
73108aa90c
@ -5,12 +5,20 @@ Required properties:
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- reg: physical base address of the controller and length of memory mapped
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region.
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- interrupts: The OHCI interrupt
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- transceiver: phandle of the associated ISP1301 device - this is necessary for
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the UDC controller for connecting to the USB physical layer
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Example (LPC32xx):
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isp1301: usb-transceiver@2c {
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compatible = "nxp,isp1301";
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reg = <0x2c>;
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};
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ohci@31020000 {
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compatible = "nxp,ohci-nxp";
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reg = <0x31020000 0x300>;
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interrupt-parent = <&mic>;
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interrupts = <0x3b 0>;
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transceiver = <&isp1301>;
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};
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@ -292,6 +292,7 @@ config USB_OHCI_HCD
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depends on USB && USB_ARCH_HAS_OHCI
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select ISP1301_OMAP if MACH_OMAP_H2 || MACH_OMAP_H3
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select USB_OTG_UTILS if ARCH_OMAP
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select USB_ISP1301 if ARCH_LPC32XX || ARCH_PNX4008
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---help---
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The Open Host Controller Interface (OHCI) is a standard for accessing
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USB 1.1 host controller hardware. It does more in hardware than Intel's
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@ -23,6 +23,7 @@
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#include <linux/platform_device.h>
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#include <linux/i2c.h>
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#include <linux/of.h>
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#include <linux/usb/isp1301.h>
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#include <mach/hardware.h>
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#include <asm/mach-types.h>
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@ -58,54 +59,6 @@
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#define TRANSPARENT_I2C_EN (1 << 7)
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#define HOST_EN (1 << 0)
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/* ISP1301 USB transceiver I2C registers */
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#define ISP1301_MODE_CONTROL_1 0x04 /* u8 read, set, +1 clear */
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#define MC1_SPEED_REG (1 << 0)
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#define MC1_SUSPEND_REG (1 << 1)
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#define MC1_DAT_SE0 (1 << 2)
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#define MC1_TRANSPARENT (1 << 3)
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#define MC1_BDIS_ACON_EN (1 << 4)
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#define MC1_OE_INT_EN (1 << 5)
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#define MC1_UART_EN (1 << 6)
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#define MC1_MASK 0x7f
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#define ISP1301_MODE_CONTROL_2 0x12 /* u8 read, set, +1 clear */
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#define MC2_GLOBAL_PWR_DN (1 << 0)
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#define MC2_SPD_SUSP_CTRL (1 << 1)
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#define MC2_BI_DI (1 << 2)
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#define MC2_TRANSP_BDIR0 (1 << 3)
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#define MC2_TRANSP_BDIR1 (1 << 4)
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#define MC2_AUDIO_EN (1 << 5)
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#define MC2_PSW_EN (1 << 6)
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#define MC2_EN2V7 (1 << 7)
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#define ISP1301_OTG_CONTROL_1 0x06 /* u8 read, set, +1 clear */
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# define OTG1_DP_PULLUP (1 << 0)
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# define OTG1_DM_PULLUP (1 << 1)
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# define OTG1_DP_PULLDOWN (1 << 2)
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# define OTG1_DM_PULLDOWN (1 << 3)
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# define OTG1_ID_PULLDOWN (1 << 4)
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# define OTG1_VBUS_DRV (1 << 5)
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# define OTG1_VBUS_DISCHRG (1 << 6)
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# define OTG1_VBUS_CHRG (1 << 7)
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#define ISP1301_OTG_STATUS 0x10 /* u8 readonly */
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# define OTG_B_SESS_END (1 << 6)
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# define OTG_B_SESS_VLD (1 << 7)
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#define ISP1301_I2C_ADDR 0x2C
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#define ISP1301_I2C_MODE_CONTROL_1 0x4
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#define ISP1301_I2C_MODE_CONTROL_2 0x12
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#define ISP1301_I2C_OTG_CONTROL_1 0x6
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#define ISP1301_I2C_OTG_CONTROL_2 0x10
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#define ISP1301_I2C_INTERRUPT_SOURCE 0x8
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#define ISP1301_I2C_INTERRUPT_LATCH 0xA
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#define ISP1301_I2C_INTERRUPT_FALLING 0xC
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#define ISP1301_I2C_INTERRUPT_RISING 0xE
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#define ISP1301_I2C_REG_CLEAR_ADDR 1
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/* On LPC32xx, those are undefined */
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#ifndef start_int_set_falling_edge
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#define start_int_set_falling_edge(irq)
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@ -115,41 +68,12 @@
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#define start_int_umask(irq)
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#endif
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static struct i2c_driver isp1301_driver;
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static struct i2c_client *isp1301_i2c_client;
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extern int usb_disabled(void);
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static struct clk *usb_clk;
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static const unsigned short normal_i2c[] =
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{ ISP1301_I2C_ADDR, ISP1301_I2C_ADDR + 1, I2C_CLIENT_END };
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static int isp1301_probe(struct i2c_client *client,
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const struct i2c_device_id *id)
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{
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return 0;
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}
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static int isp1301_remove(struct i2c_client *client)
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{
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return 0;
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}
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static const struct i2c_device_id isp1301_id[] = {
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{ "isp1301_nxp", 0 },
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{ }
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};
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static struct i2c_driver isp1301_driver = {
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.driver = {
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.name = "isp1301_nxp",
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},
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.probe = isp1301_probe,
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.remove = isp1301_remove,
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.id_table = isp1301_id,
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};
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static void isp1301_configure_pnx4008(void)
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{
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/* PNX4008 only supports DAT_SE0 USB mode */
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@ -373,11 +297,22 @@ static int __devinit usb_hcd_nxp_probe(struct platform_device *pdev)
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struct usb_hcd *hcd = 0;
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struct ohci_hcd *ohci;
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const struct hc_driver *driver = &ohci_nxp_hc_driver;
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struct i2c_adapter *i2c_adap;
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struct i2c_board_info i2c_info;
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struct resource *res;
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int ret = 0, irq;
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struct device_node *isp1301_node;
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if (pdev->dev.of_node) {
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isp1301_node = of_parse_phandle(pdev->dev.of_node,
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"transceiver", 0);
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} else {
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isp1301_node = NULL;
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}
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isp1301_i2c_client = isp1301_get_client(isp1301_node);
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if (!isp1301_i2c_client) {
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ret = -EPROBE_DEFER;
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goto out;
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}
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pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
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pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
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@ -392,28 +327,6 @@ static int __devinit usb_hcd_nxp_probe(struct platform_device *pdev)
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/* Enable AHB slave USB clock, needed for further USB clock control */
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__raw_writel(USB_SLAVE_HCLK_EN | PAD_CONTROL_LAST_DRIVEN, USB_CTRL);
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ret = i2c_add_driver(&isp1301_driver);
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if (ret < 0) {
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dev_err(&pdev->dev, "failed to add ISP1301 driver\n");
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goto out;
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}
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i2c_adap = i2c_get_adapter(2);
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if (!i2c_adap) {
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dev_err(&pdev->dev, "failed on i2c_get_adapter");
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goto out_i2c_driver;
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}
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memset(&i2c_info, 0, sizeof(struct i2c_board_info));
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strlcpy(i2c_info.type, "isp1301_nxp", I2C_NAME_SIZE);
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isp1301_i2c_client = i2c_new_probed_device(i2c_adap, &i2c_info,
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normal_i2c, NULL);
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i2c_put_adapter(i2c_adap);
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if (!isp1301_i2c_client) {
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dev_err(&pdev->dev, "failed to connect I2C to ISP1301 USB Transceiver\n");
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ret = -ENODEV;
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goto out_i2c_driver;
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}
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isp1301_configure();
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/* Enable USB PLL */
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@ -495,10 +408,7 @@ out3:
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out2:
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clk_put(usb_clk);
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out1:
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i2c_unregister_device(isp1301_i2c_client);
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isp1301_i2c_client = NULL;
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out_i2c_driver:
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i2c_del_driver(&isp1301_driver);
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out:
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return ret;
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}
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@ -516,7 +426,6 @@ static int usb_hcd_nxp_remove(struct platform_device *pdev)
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clk_put(usb_clk);
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i2c_unregister_device(isp1301_i2c_client);
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isp1301_i2c_client = NULL;
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i2c_del_driver(&isp1301_driver);
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platform_set_drvdata(pdev, NULL);
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