Hi Laurent,
On 11/09/18 18:06, Laurent Pinchart wrote:
> Now that all platforms using OMAP USB host devices have been converted
> to DT, drop support for legacy non-DT probe from the driver.
>
> Signed-off-by: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
> ---
> drivers/mfd/omap-usb-host.c | 153
> +++------------------------------
> include/linux/platform_data/usb-omap.h | 4 -
> 2 files changed, 13 insertions(+), 144 deletions(-)
>
> diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c
> index b731026541f5..ce28e0fda55e 100644
> --- a/drivers/mfd/omap-usb-host.c
> +++ b/drivers/mfd/omap-usb-host.c
> @@ -23,7 +23,6 @@
> #include <linux/slab.h>
> #include <linux/delay.h>
> #include <linux/clk.h>
> -#include <linux/dma-mapping.h>
> #include <linux/gpio.h>
> #include <linux/platform_device.h>
> #include <linux/platform_data/usb-omap.h>
> @@ -35,8 +34,6 @@
> #include "omap-usb.h"
>
> #define USBHS_DRIVER_NAME "usbhs_omap"
> -#define OMAP_EHCI_DEVICE "ehci-omap"
> -#define OMAP_OHCI_DEVICE "ohci-omap3"
>
> /* OMAP USBHOST Register addresses */
>
> @@ -115,7 +112,6 @@ struct usbhs_hcd_omap {
> /*-------------------------------------------------------------------------*/
>
> static const char usbhs_driver_name[] = USBHS_DRIVER_NAME;
> -static u64 usbhs_dmamask = DMA_BIT_MASK(32);
>
> /*-------------------------------------------------------------------------*/
>
> @@ -153,119 +149,6 @@ static const char * const port_modes[] = {
> [OMAP_OHCI_PORT_MODE_TLL_2PIN_DPDM] = "ohci-tll-2pin-dpdm",
> };
>
> -static struct platform_device *omap_usbhs_alloc_child(const char *name,
> - struct resource *res, int num_resources, void *pdata,
> - size_t pdata_size, struct device *dev)
> -{
> - struct platform_device *child;
> - int ret;
> -
> - child = platform_device_alloc(name, 0);
> -
> - if (!child) {
> - dev_err(dev, "platform_device_alloc %s failed\n", name);
> - goto err_end;
> - }
> -
> - ret = platform_device_add_resources(child, res, num_resources);
> - if (ret) {
> - dev_err(dev, "platform_device_add_resources failed\n");
> - goto err_alloc;
> - }
> -
> - ret = platform_device_add_data(child, pdata, pdata_size);
> - if (ret) {
> - dev_err(dev, "platform_device_add_data failed\n");
> - goto err_alloc;
> - }
> -
> - child->dev.dma_mask = &usbhs_dmamask;
> - dma_set_coherent_mask(&child->dev, DMA_BIT_MASK(32));
> - child->dev.parent = dev;
> -
> - ret = platform_device_add(child);
> - if (ret) {
> - dev_err(dev, "platform_device_add failed\n");
> - goto err_alloc;
> - }
> -
> - return child;
> -
> -err_alloc:
> - platform_device_put(child);
> -
> -err_end:
> - return NULL;
> -}
> -
> -static int omap_usbhs_alloc_children(struct platform_device *pdev)
> -{
> - struct device *dev = &pdev->dev;
> - struct usbhs_omap_platform_data *pdata = dev_get_platdata(dev);
> - struct platform_device *ehci;
> - struct platform_device *ohci;
> - struct resource *res;
> - struct resource resources[2];
> - int ret;
> -
> - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ehci");
> - if (!res) {
> - dev_err(dev, "EHCI get resource IORESOURCE_MEM failed\n");
> - ret = -ENODEV;
> - goto err_end;
> - }
> - resources[0] = *res;
> -
> - res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "ehci-irq");
> - if (!res) {
> - dev_err(dev, " EHCI get resource IORESOURCE_IRQ failed\n");
> - ret = -ENODEV;
> - goto err_end;
> - }
> - resources[1] = *res;
> -
> - ehci = omap_usbhs_alloc_child(OMAP_EHCI_DEVICE, resources, 2, pdata,
> - sizeof(*pdata), dev);
> -
> - if (!ehci) {
> - dev_err(dev, "omap_usbhs_alloc_child failed\n");
> - ret = -ENOMEM;
> - goto err_end;
> - }
> -
> - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ohci");
> - if (!res) {
> - dev_err(dev, "OHCI get resource IORESOURCE_MEM failed\n");
> - ret = -ENODEV;
> - goto err_ehci;
> - }
> - resources[0] = *res;
> -
> - res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "ohci-irq");
> - if (!res) {
> - dev_err(dev, "OHCI get resource IORESOURCE_IRQ failed\n");
> - ret = -ENODEV;
> - goto err_ehci;
> - }
> - resources[1] = *res;
> -
> - ohci = omap_usbhs_alloc_child(OMAP_OHCI_DEVICE, resources, 2, pdata,
> - sizeof(*pdata), dev);
> - if (!ohci) {
> - dev_err(dev, "omap_usbhs_alloc_child failed\n");
> - ret = -ENOMEM;
> - goto err_ehci;
> - }
> -
> - return 0;
> -
> -err_ehci:
> - platform_device_unregister(ehci);
> -
> -err_end:
> - return ret;
> -}
> -
> static bool is_ohci_port(enum usbhs_omap_port_mode pmode)
> {
> switch (pmode) {
> @@ -541,31 +424,28 @@ static const struct of_device_id
> usbhs_child_match_table[] = {
> static int usbhs_omap_probe(struct platform_device *pdev)
> {
> struct device *dev = &pdev->dev;
> - struct usbhs_omap_platform_data *pdata = dev_get_platdata(dev);
> + struct usbhs_omap_platform_data *pdata;
> struct usbhs_hcd_omap *omap;
> struct resource *res;
> int ret = 0;
> int i;
> bool need_logic_fck;
>
> - dev_info(&pdev->dev, "%s\n", __func__);
> - if (dev->of_node) {
> - /* For DT boot we populate platform data from OF node */
> - pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
> - if (!pdata)
> - return -ENOMEM;
> + /* Populate platform data from OF node */
> + if (!dev->of_node) {
> + dev_err(dev, "Missing OF node\n");
> + return -ENODEV;
> + }
>
> - ret = usbhs_omap_get_dt_pdata(dev, pdata);
> - if (ret)
> - return ret;
> + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
> + if (!pdata)
> + return -ENOMEM;
>
> - dev->platform_data = pdata;
> - }
> + ret = usbhs_omap_get_dt_pdata(dev, pdata);
> + if (ret)
> + return ret;
>
> - if (!pdata) {
> - dev_err(dev, "Missing platform data\n");
> - return -ENODEV;
> - }
> + dev->platform_data = pdata;
Do we still need to set dev->platform_data?
This driver can access it via
struct usbhs_hcd_omap *omap = dev_get_drvdata(dev);
omap->pdata;
>
> if (pdata->nports > OMAP3_HS_USB_PORTS) {
> dev_info(dev, "Too many num_ports <%d> in platform_data. Max
> %d\n",
> @@ -798,13 +678,6 @@ static int usbhs_omap_probe(struct platform_device *pdev)
> goto err_mem;
> }
>
> - } else {
> - ret = omap_usbhs_alloc_children(pdev);
> - if (ret) {
> - dev_err(dev, "omap_usbhs_alloc_children failed: %d\n",
> - ret);
> - goto err_mem;
> - }
> }
>
> return 0;
> diff --git a/include/linux/platform_data/usb-omap.h
> b/include/linux/platform_data/usb-omap.h
> index fa579b4c666b..c051da514dc5 100644
> --- a/include/linux/platform_data/usb-omap.h
> +++ b/include/linux/platform_data/usb-omap.h
> @@ -38,10 +38,6 @@ enum usbhs_omap_port_mode {
> OMAP_OHCI_PORT_MODE_TLL_2PIN_DPDM
> };
>
> -struct usbtll_omap_platform_data {
> - enum usbhs_omap_port_mode port_mode[OMAP3_HS_USB_PORTS];
> -};
> -
> struct ehci_hcd_omap_platform_data {
> enum usbhs_omap_port_mode port_mode[OMAP3_HS_USB_PORTS];
> int reset_gpio_port[OMAP3_HS_USB_PORTS];
>
cheers,
-roger
--
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