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dwc3: core: change probe and remove to uboot init and uboot exit code
Removed probe and remove that are specific to linux and replaced it with uboot init and uboot exit. These functions will be invoked from boardfile. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
This commit is contained in:
Kishon Vijay Abraham I
Marek Vasut
parent
da0d9e42a3
commit
8e1906a81f
@ -16,6 +16,7 @@
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#include <common.h>
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#include <malloc.h>
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#include <dwc3-uboot.h>
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#include <asm/dma-mapping.h>
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#include <linux/ioport.h>
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@ -28,6 +29,7 @@
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#include "linux-compat.h"
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struct dwc3 *dwc;
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/* -------------------------------------------------------------------------- */
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void dwc3_set_mode(struct dwc3 *dwc, u32 mode)
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@ -597,20 +599,26 @@ static void dwc3_core_exit_mode(struct dwc3 *dwc)
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#define DWC3_ALIGN_MASK (16 - 1)
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static int dwc3_probe(struct platform_device *pdev)
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/**
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* dwc3_uboot_init - dwc3 core uboot initialization code
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* @dwc3_dev: struct dwc3_device containing initialization data
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*
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* Entry point for dwc3 driver (equivalent to dwc3_probe in linux
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* kernel driver). Pointer to dwc3_device should be passed containing
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* base address and other initialization data. Returns '0' on success and
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* a negative value on failure.
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*
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* Generally called from board_usb_init() implemented in board file.
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*/
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int dwc3_uboot_init(struct dwc3_device *dwc3_dev)
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{
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struct device *dev = &pdev->dev;
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struct dwc3_platform_data *pdata = dev_get_platdata(dev);
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struct device_node *node = dev->of_node;
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struct resource *res;
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struct dwc3 *dwc;
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struct device *dev;
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u8 lpm_nyet_threshold;
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u8 tx_de_emphasis;
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u8 hird_threshold;
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int ret;
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void __iomem *regs;
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void *mem;
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mem = devm_kzalloc(dev, sizeof(*dwc) + DWC3_ALIGN_MASK, GFP_KERNEL);
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@ -619,48 +627,8 @@ static int dwc3_probe(struct platform_device *pdev)
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dwc = PTR_ALIGN(mem, DWC3_ALIGN_MASK + 1);
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dwc->mem = mem;
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dwc->dev = dev;
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res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
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if (!res) {
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dev_err(dev, "missing IRQ\n");
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return -ENODEV;
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}
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dwc->xhci_resources[1].start = res->start;
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dwc->xhci_resources[1].end = res->end;
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dwc->xhci_resources[1].flags = res->flags;
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dwc->xhci_resources[1].name = res->name;
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res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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if (!res) {
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dev_err(dev, "missing memory resource\n");
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return -ENODEV;
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}
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dwc->xhci_resources[0].start = res->start;
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dwc->xhci_resources[0].end = dwc->xhci_resources[0].start +
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DWC3_XHCI_REGS_END;
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dwc->xhci_resources[0].flags = res->flags;
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dwc->xhci_resources[0].name = res->name;
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res->start += DWC3_GLOBALS_REGS_START;
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/*
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* Request memory region but exclude xHCI regs,
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* since it will be requested by the xhci-plat driver.
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*/
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regs = devm_ioremap_resource(dev, res);
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if (IS_ERR(regs))
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return PTR_ERR(regs);
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dwc->regs = regs;
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dwc->regs_size = resource_size(res);
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/*
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* restore res->start back to its original value so that,
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* in case the probe is deferred, we don't end up getting error in
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* request the memory region the next time probe is called.
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*/
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res->start -= DWC3_GLOBALS_REGS_START;
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dwc->regs = (int *)(dwc3_dev->base + DWC3_GLOBALS_REGS_START);
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/* default to highest possible threshold */
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lpm_nyet_threshold = 0xff;
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@ -674,73 +642,31 @@ static int dwc3_probe(struct platform_device *pdev)
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*/
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hird_threshold = 12;
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if (node) {
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dwc->maximum_speed = of_usb_get_maximum_speed(node);
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dwc->has_lpm_erratum = of_property_read_bool(node,
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"snps,has-lpm-erratum");
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of_property_read_u8(node, "snps,lpm-nyet-threshold",
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&lpm_nyet_threshold);
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dwc->is_utmi_l1_suspend = of_property_read_bool(node,
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"snps,is-utmi-l1-suspend");
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of_property_read_u8(node, "snps,hird-threshold",
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&hird_threshold);
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dwc->maximum_speed = dwc3_dev->maximum_speed;
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dwc->has_lpm_erratum = dwc3_dev->has_lpm_erratum;
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if (dwc3_dev->lpm_nyet_threshold)
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lpm_nyet_threshold = dwc3_dev->lpm_nyet_threshold;
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dwc->is_utmi_l1_suspend = dwc3_dev->is_utmi_l1_suspend;
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if (dwc3_dev->hird_threshold)
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hird_threshold = dwc3_dev->hird_threshold;
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dwc->needs_fifo_resize = of_property_read_bool(node,
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"tx-fifo-resize");
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dwc->dr_mode = of_usb_get_dr_mode(node);
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dwc->needs_fifo_resize = dwc3_dev->tx_fifo_resize;
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dwc->dr_mode = dwc3_dev->dr_mode;
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dwc->disable_scramble_quirk = of_property_read_bool(node,
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"snps,disable_scramble_quirk");
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dwc->u2exit_lfps_quirk = of_property_read_bool(node,
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"snps,u2exit_lfps_quirk");
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dwc->u2ss_inp3_quirk = of_property_read_bool(node,
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"snps,u2ss_inp3_quirk");
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dwc->req_p1p2p3_quirk = of_property_read_bool(node,
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"snps,req_p1p2p3_quirk");
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dwc->del_p1p2p3_quirk = of_property_read_bool(node,
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"snps,del_p1p2p3_quirk");
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dwc->del_phy_power_chg_quirk = of_property_read_bool(node,
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"snps,del_phy_power_chg_quirk");
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dwc->lfps_filter_quirk = of_property_read_bool(node,
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"snps,lfps_filter_quirk");
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dwc->rx_detect_poll_quirk = of_property_read_bool(node,
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"snps,rx_detect_poll_quirk");
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dwc->dis_u3_susphy_quirk = of_property_read_bool(node,
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"snps,dis_u3_susphy_quirk");
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dwc->dis_u2_susphy_quirk = of_property_read_bool(node,
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"snps,dis_u2_susphy_quirk");
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dwc->disable_scramble_quirk = dwc3_dev->disable_scramble_quirk;
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dwc->u2exit_lfps_quirk = dwc3_dev->u2exit_lfps_quirk;
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dwc->u2ss_inp3_quirk = dwc3_dev->u2ss_inp3_quirk;
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dwc->req_p1p2p3_quirk = dwc3_dev->req_p1p2p3_quirk;
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dwc->del_p1p2p3_quirk = dwc3_dev->del_p1p2p3_quirk;
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dwc->del_phy_power_chg_quirk = dwc3_dev->del_phy_power_chg_quirk;
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dwc->lfps_filter_quirk = dwc3_dev->lfps_filter_quirk;
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dwc->rx_detect_poll_quirk = dwc3_dev->rx_detect_poll_quirk;
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dwc->dis_u3_susphy_quirk = dwc3_dev->dis_u3_susphy_quirk;
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dwc->dis_u2_susphy_quirk = dwc3_dev->dis_u2_susphy_quirk;
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dwc->tx_de_emphasis_quirk = of_property_read_bool(node,
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"snps,tx_de_emphasis_quirk");
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of_property_read_u8(node, "snps,tx_de_emphasis",
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&tx_de_emphasis);
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} else if (pdata) {
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dwc->maximum_speed = pdata->maximum_speed;
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dwc->has_lpm_erratum = pdata->has_lpm_erratum;
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if (pdata->lpm_nyet_threshold)
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lpm_nyet_threshold = pdata->lpm_nyet_threshold;
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dwc->is_utmi_l1_suspend = pdata->is_utmi_l1_suspend;
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if (pdata->hird_threshold)
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hird_threshold = pdata->hird_threshold;
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dwc->needs_fifo_resize = pdata->tx_fifo_resize;
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dwc->dr_mode = pdata->dr_mode;
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dwc->disable_scramble_quirk = pdata->disable_scramble_quirk;
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dwc->u2exit_lfps_quirk = pdata->u2exit_lfps_quirk;
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dwc->u2ss_inp3_quirk = pdata->u2ss_inp3_quirk;
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dwc->req_p1p2p3_quirk = pdata->req_p1p2p3_quirk;
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dwc->del_p1p2p3_quirk = pdata->del_p1p2p3_quirk;
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dwc->del_phy_power_chg_quirk = pdata->del_phy_power_chg_quirk;
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dwc->lfps_filter_quirk = pdata->lfps_filter_quirk;
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dwc->rx_detect_poll_quirk = pdata->rx_detect_poll_quirk;
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dwc->dis_u3_susphy_quirk = pdata->dis_u3_susphy_quirk;
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dwc->dis_u2_susphy_quirk = pdata->dis_u2_susphy_quirk;
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dwc->tx_de_emphasis_quirk = pdata->tx_de_emphasis_quirk;
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if (pdata->tx_de_emphasis)
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tx_de_emphasis = pdata->tx_de_emphasis;
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}
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dwc->tx_de_emphasis_quirk = dwc3_dev->tx_de_emphasis_quirk;
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if (dwc3_dev->tx_de_emphasis)
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tx_de_emphasis = dwc3_dev->tx_de_emphasis;
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/* default to superspeed if no maximum_speed passed */
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if (dwc->maximum_speed == USB_SPEED_UNKNOWN)
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@ -752,15 +678,6 @@ static int dwc3_probe(struct platform_device *pdev)
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dwc->hird_threshold = hird_threshold
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| (dwc->is_utmi_l1_suspend << 4);
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spin_lock_init(&dwc->lock);
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platform_set_drvdata(pdev, dwc);
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if (!dev->dma_mask) {
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dev->dma_mask = dev->parent->dma_mask;
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dev->dma_parms = dev->parent->dma_parms;
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dma_set_coherent_mask(dev, dev->parent->coherent_dma_mask);
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}
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dwc3_cache_hwparams(dwc);
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ret = dwc3_alloc_event_buffers(dwc, DWC3_EVENT_BUFFERS_SIZE);
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@ -807,55 +724,24 @@ err0:
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return ret;
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}
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static int dwc3_remove(struct platform_device *pdev)
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/**
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* dwc3_uboot_exit - dwc3 core uboot cleanup code
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* @index: index of this controller
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*
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* Performs cleanup of memory allocated in dwc3_uboot_init and other misc
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* cleanups (equivalent to dwc3_remove in linux).
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*
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* Generally called from board file.
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*/
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void dwc3_uboot_exit()
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{
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struct dwc3 *dwc = platform_get_drvdata(pdev);
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dwc3_core_exit_mode(dwc);
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dwc3_event_buffers_cleanup(dwc);
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dwc3_free_event_buffers(dwc);
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dwc3_core_exit(dwc);
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return 0;
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kfree(dwc->mem);
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}
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#ifdef CONFIG_OF
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static const struct of_device_id of_dwc3_match[] = {
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{
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.compatible = "snps,dwc3"
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},
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{
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.compatible = "synopsys,dwc3"
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},
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{ },
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};
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MODULE_DEVICE_TABLE(of, of_dwc3_match);
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#endif
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#ifdef CONFIG_ACPI
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#define ACPI_ID_INTEL_BSW "808622B7"
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static const struct acpi_device_id dwc3_acpi_match[] = {
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{ ACPI_ID_INTEL_BSW, 0 },
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{ },
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};
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MODULE_DEVICE_TABLE(acpi, dwc3_acpi_match);
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#endif
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static struct platform_driver dwc3_driver = {
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.probe = dwc3_probe,
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.remove = dwc3_remove,
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.driver = {
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.name = "dwc3",
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.of_match_table = of_match_ptr(of_dwc3_match),
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.acpi_match_table = ACPI_PTR(dwc3_acpi_match),
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},
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};
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module_platform_driver(dwc3_driver);
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MODULE_ALIAS("platform:dwc3");
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MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");
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MODULE_LICENSE("GPL v2");
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