1cd8ae19a9
Add backported patched from 5.x from usb related fixes Up kernel version to most recent lts
69 lines
2.5 KiB
Diff
69 lines
2.5 KiB
Diff
From f3a61e4e033e808e7ac1239b151ec46f833fff4a Mon Sep 17 00:00:00 2001
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From: Grigor Tovmasyan <Grigor.Tovmasyan@synopsys.com>
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Date: Wed, 29 Aug 2018 21:01:31 +0400
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Subject: [PATCH 11/53] usb: dwc2: gadget: Add parameters for GREFCLK register
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Added ref_clk_per and sof_cnt_wkup_alert parameters in
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dwc2_core_params struct and set default values.
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Acked-by: Minas Harutyunyan <hminas@synopsys.com>
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Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com>
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Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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---
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drivers/usb/dwc2/core.h | 18 ++++++++++++++++++
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drivers/usb/dwc2/params.c | 2 ++
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2 files changed, 20 insertions(+)
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diff --git a/drivers/usb/dwc2/core.h b/drivers/usb/dwc2/core.h
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index 2678dc9d559b..655f5274e801 100644
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--- a/drivers/usb/dwc2/core.h
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+++ b/drivers/usb/dwc2/core.h
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@@ -393,6 +393,20 @@ enum dwc2_ep0_state {
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* 0 - No
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* 1 - Yes
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* @hird_threshold: Value of BESL or HIRD Threshold.
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+ * @ref_clk_per: Indicates in terms of pico seconds the period
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+ * of ref_clk.
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+ * 62500 - 16MHz
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+ * 58823 - 17MHz
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+ * 52083 - 19.2MHz
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+ * 50000 - 20MHz
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+ * 41666 - 24MHz
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+ * 33333 - 30MHz (default)
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+ * 25000 - 40MHz
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+ * @sof_cnt_wkup_alert: Indicates in term of number of SOF's after which
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+ * the controller should generate an interrupt if the
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+ * device had been in L1 state until that period.
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+ * This is used by SW to initiate Remote WakeUp in the
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+ * controller so as to sync to the uF number from the host.
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* @activate_stm_fs_transceiver: Activate internal transceiver using GGPIO
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* register.
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* 0 - Deactivate the transceiver (default)
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@@ -472,6 +486,10 @@ struct dwc2_core_params {
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u32 max_transfer_size;
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u32 ahbcfg;
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+ /* GREFCLK parameters */
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+ u32 ref_clk_per;
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+ u16 sof_cnt_wkup_alert;
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+
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/* Host parameters */
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bool host_dma;
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bool dma_desc_enable;
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diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c
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index dd3c10d537e2..d150984406ee 100644
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--- a/drivers/usb/dwc2/params.c
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+++ b/drivers/usb/dwc2/params.c
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@@ -303,6 +303,8 @@ static void dwc2_set_default_params(struct dwc2_hsotg *hsotg)
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p->max_packet_count = hw->max_packet_count;
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p->max_transfer_size = hw->max_transfer_size;
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p->ahbcfg = GAHBCFG_HBSTLEN_INCR << GAHBCFG_HBSTLEN_SHIFT;
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+ p->ref_clk_per = 33333;
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+ p->sof_cnt_wkup_alert = 100;
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if ((hsotg->dr_mode == USB_DR_MODE_HOST) ||
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(hsotg->dr_mode == USB_DR_MODE_OTG)) {
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--
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2.11.0
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