diff options
| author | Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> | 2017-10-12 09:34:45 +0300 |
|---|---|---|
| committer | Kishon Vijay Abraham I <kishon@ti.com> | 2017-10-23 08:49:26 +0300 |
| commit | 7e0540f41332cb07055c5fe6629dc83c71974c82 (patch) | |
| tree | 773b17a3dd9c876ba4a56ee5ad3a385c919d2451 /drivers/phy/renesas/phy-rcar-gen3-usb2.c | |
| parent | f7da4e6d29539bad2c29dd8ccb4ac628fe19f82b (diff) | |
| download | linux-7e0540f41332cb07055c5fe6629dc83c71974c82.tar.xz | |
phy: rcar-gen3-usb2: check dr_mode for otg mode
The previous code assumed a channel has otg capability if a channel
has interrupt property. But, it is not good because:
- Battery charging feature also needs interrupt property.
- Some R-Car Gen3 SoCs (e.g. R-Car D3) don't have OTG capability.
So, this patch checks whether usb 2.0 host node has dr_mode property or
not. If it has 'dr_mode = "otg";', this driver enables otg capability.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Diffstat (limited to 'drivers/phy/renesas/phy-rcar-gen3-usb2.c')
| -rw-r--r-- | drivers/phy/renesas/phy-rcar-gen3-usb2.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/phy/renesas/phy-rcar-gen3-usb2.c b/drivers/phy/renesas/phy-rcar-gen3-usb2.c index 54c34298a000..e00e99a96b68 100644 --- a/drivers/phy/renesas/phy-rcar-gen3-usb2.c +++ b/drivers/phy/renesas/phy-rcar-gen3-usb2.c @@ -1,7 +1,7 @@ /* * Renesas R-Car Gen3 for USB2.0 PHY driver * - * Copyright (C) 2015 Renesas Electronics Corporation + * Copyright (C) 2015-2017 Renesas Electronics Corporation * * This is based on the phy-rcar-gen2 driver: * Copyright (C) 2014 Renesas Solutions Corp. @@ -22,6 +22,7 @@ #include <linux/platform_device.h> #include <linux/pm_runtime.h> #include <linux/regulator/consumer.h> +#include <linux/usb/of.h> #include <linux/workqueue.h> /******* USB2.0 Host registers (original offset is +0x200) *******/ @@ -415,13 +416,16 @@ static int rcar_gen3_phy_usb2_probe(struct platform_device *pdev) /* call request_irq for OTG */ irq = platform_get_irq(pdev, 0); if (irq >= 0) { - int ret; - INIT_WORK(&channel->work, rcar_gen3_phy_usb2_work); irq = devm_request_irq(dev, irq, rcar_gen3_phy_usb2_irq, IRQF_SHARED, dev_name(dev), channel); if (irq < 0) dev_err(dev, "No irq handler (%d)\n", irq); + } + + if (of_usb_get_dr_mode_by_phy(dev->of_node, 0) == USB_DR_MODE_OTG) { + int ret; + channel->has_otg = true; channel->extcon = devm_extcon_dev_allocate(dev, rcar_gen3_phy_cable); |