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| author | Artur Petrosyan <arthur.petrosyan@synopsys.com> | 2018-11-02 11:29:55 -0400 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2018-11-26 09:06:32 +0200 |
| commit | 9aed8c08c82d8498769119b73358d070a7cbb54c (patch) | |
| tree | f41abac3216f57fcf07320c07caccf816b1e652c /drivers/usb/dwc2 | |
| parent | d64bc8ee92856e39b3150d93e244ca8239ae6ada (diff) | |
| download | linux-stable-9aed8c08c82d8498769119b73358d070a7cbb54c.tar.gz linux-stable-9aed8c08c82d8498769119b73358d070a7cbb54c.tar.bz2 linux-stable-9aed8c08c82d8498769119b73358d070a7cbb54c.zip | |
usb: dwc2: gadget: Accept LPM token when TxFIFO is not empty
Set GLPMCFG_LPM_ACCEPT_CTRL_ISOC bit in GLPMCFG register
to accept LPM token during ISOC transfers when TxFIFO is
not empty.
- Added two definitions.
#define GLPMCFG_LPM_ACCEPT_CTRL_CONTROL BIT(21)
#define GLPMCFG_LPM_ACCEPT_CTRL_ISOC BIT(22)
This patch uses GLPMCFG_LPM_ACCEPT_CTRL_ISOC.
GLPMCFG_LPM_ACCEPT_CTRL_CONTROL is defined for further use.
- Added setting GLPMCFG_LPM_ACCEPT_CTRL_ISOC bit in GLPMCFG
register in dwc2_gadget_init_lpm function.
Signed-off-by: Artur Petrosyan <arturp@synopsys.com>
Signed-off-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/dwc2')
| -rw-r--r-- | drivers/usb/dwc2/gadget.c | 1 | ||||
| -rw-r--r-- | drivers/usb/dwc2/hw.h | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c index 6bd4054e894d..94f3ba995580 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -5026,6 +5026,7 @@ void dwc2_gadget_init_lpm(struct dwc2_hsotg *hsotg) val |= hsotg->params.lpm_clock_gating ? GLPMCFG_ENBLSLPM : 0; val |= hsotg->params.hird_threshold << GLPMCFG_HIRD_THRES_SHIFT; val |= hsotg->params.besl ? GLPMCFG_ENBESL : 0; + val |= GLPMCFG_LPM_ACCEPT_CTRL_ISOC; dwc2_writel(hsotg, val, GLPMCFG); dev_dbg(hsotg->dev, "GLPMCFG=0x%08x\n", dwc2_readl(hsotg, GLPMCFG)); diff --git a/drivers/usb/dwc2/hw.h b/drivers/usb/dwc2/hw.h index 2b1ea441b7d4..98af924a9a5c 100644 --- a/drivers/usb/dwc2/hw.h +++ b/drivers/usb/dwc2/hw.h @@ -333,6 +333,8 @@ #define GLPMCFG_SNDLPM BIT(24) #define GLPMCFG_RETRY_CNT_MASK (0x7 << 21) #define GLPMCFG_RETRY_CNT_SHIFT 21 +#define GLPMCFG_LPM_ACCEPT_CTRL_CONTROL BIT(21) +#define GLPMCFG_LPM_ACCEPT_CTRL_ISOC BIT(22) #define GLPMCFG_LPM_CHNL_INDX_MASK (0xf << 17) #define GLPMCFG_LPM_CHNL_INDX_SHIFT 17 #define GLPMCFG_L1RESUMEOK BIT(16) |