| Message ID | 1384548866-13141-28-git-send-email-swarren@wwwdotorg.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Fri, 15 Nov 2013, Stephen Warren wrote: > From: Stephen Warren <swarren@nvidia.com> > > Tegra's clock driver now provides an implementation of the common > reset API (include/linux/reset.h). Use this instead of the old Tegra- > specific API; that will soon be removed. > > Cc: treding@nvidia.com > Cc: pdeschrijver@nvidia.com > Cc: linux-tegra@vger.kernel.org > Cc: linux-arm-kernel@lists.infradead.org > Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> > Cc: Alan Stern <stern@rowland.harvard.edu> > Cc: linux-usb@vger.kernel.org > Signed-off-by: Stephen Warren <swarren@nvidia.com> > --- > This patch is part of a series with strong internal depdendencies. I'm > looking for an ack so that I can take the entire series through the Tegra > and arm-soc trees. The series will be part of a stable branch that can be > merged into other subsystems if needed to avoid/resolve dependencies. Acked-by: Alan Stern <stern@rowland.harvard.edu>
On Fri, Nov 15, 2013 at 01:54:22PM -0700, Stephen Warren wrote: > From: Stephen Warren <swarren@nvidia.com> > > Tegra's clock driver now provides an implementation of the common > reset API (include/linux/reset.h). Use this instead of the old Tegra- > specific API; that will soon be removed. > > Cc: treding@nvidia.com > Cc: pdeschrijver@nvidia.com > Cc: linux-tegra@vger.kernel.org > Cc: linux-arm-kernel@lists.infradead.org > Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> > Cc: Alan Stern <stern@rowland.harvard.edu> > Cc: linux-usb@vger.kernel.org > Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
On Fri, Nov 15, 2013 at 01:54:22PM -0700, Stephen Warren wrote: > From: Stephen Warren <swarren@nvidia.com> > > Tegra's clock driver now provides an implementation of the common > reset API (include/linux/reset.h). Use this instead of the old Tegra- > specific API; that will soon be removed. > > Cc: treding@nvidia.com > Cc: pdeschrijver@nvidia.com > Cc: linux-tegra@vger.kernel.org > Cc: linux-arm-kernel@lists.infradead.org > Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> > Cc: Alan Stern <stern@rowland.harvard.edu> > Cc: linux-usb@vger.kernel.org > Signed-off-by: Stephen Warren <swarren@nvidia.com> > --- > This patch is part of a series with strong internal depdendencies. I'm > looking for an ack so that I can take the entire series through the Tegra > and arm-soc trees. The series will be part of a stable branch that can be > merged into other subsystems if needed to avoid/resolve dependencies. > --- > drivers/usb/host/ehci-tegra.c | 14 +++++++++++--- > 1 file changed, 11 insertions(+), 3 deletions(-) Reviewed-by: Thierry Reding <treding@nvidia.com>
diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c index b9fd0396011e..6f7e23dd1417 100644 --- a/drivers/usb/host/ehci-tegra.c +++ b/drivers/usb/host/ehci-tegra.c @@ -17,7 +17,6 @@ */ #include <linux/clk.h> -#include <linux/clk/tegra.h> #include <linux/dma-mapping.h> #include <linux/err.h> #include <linux/gpio.h> @@ -29,6 +28,7 @@ #include <linux/of_gpio.h> #include <linux/platform_device.h> #include <linux/pm_runtime.h> +#include <linux/reset.h> #include <linux/slab.h> #include <linux/usb/ehci_def.h> #include <linux/usb/tegra_usb_phy.h> @@ -62,6 +62,7 @@ static int (*orig_hub_control)(struct usb_hcd *hcd, struct tegra_ehci_hcd { struct tegra_usb_phy *phy; struct clk *clk; + struct reset_control *rst; int port_resuming; bool needs_double_reset; enum tegra_usb_phy_port_speed port_speed; @@ -385,13 +386,20 @@ static int tegra_ehci_probe(struct platform_device *pdev) goto cleanup_hcd_create; } + tegra->rst = devm_reset_control_get(&pdev->dev, "usb"); + if (IS_ERR(tegra->rst)) { + dev_err(&pdev->dev, "Can't get ehci reset\n"); + err = PTR_ERR(tegra->rst); + goto cleanup_hcd_create; + } + err = clk_prepare_enable(tegra->clk); if (err) goto cleanup_hcd_create; - tegra_periph_reset_assert(tegra->clk); + reset_control_assert(tegra->rst); udelay(1); - tegra_periph_reset_deassert(tegra->clk); + reset_control_deassert(tegra->rst); u_phy = devm_usb_get_phy_by_phandle(&pdev->dev, "nvidia,phy", 0); if (IS_ERR(u_phy)) {