usb: dwc2: gadget: Accept LPM token when TxFIFO is not empty (9aed8c08) · Commits · 戴 / test

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>

drivers/usb/dwc2/gadget.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -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));

drivers/usb/dwc2/hw.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -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)

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