diff options
| author | Yangbo Lu <yangbo.lu@nxp.com> | 2020-04-10 10:47:05 +0800 |
|---|---|---|
| committer | Petr Štetiar <ynezz@true.cz> | 2020-05-07 12:53:06 +0200 |
| commit | cddd4591404fb4c53dc0b3c0b15b942cdbed4356 (patch) | |
| tree | 392c1179de46b0f804e3789edca19069b64e6b44 /target/linux/layerscape/patches-5.4/820-usb-0004-usb-dwc3-use-suspend-clock-from-dt-to-set-power-down.patch | |
| parent | d1d2c0b5579ea4f69a42246c9318539d61ba1999 (diff) | |
| download | upstream-cddd4591404fb4c53dc0b3c0b15b942cdbed4356.tar.gz upstream-cddd4591404fb4c53dc0b3c0b15b942cdbed4356.tar.bz2 upstream-cddd4591404fb4c53dc0b3c0b15b942cdbed4356.zip | |
layerscape: add patches-5.4
Add patches for linux-5.4. The patches are from NXP LSDK-20.04 release
which was tagged LSDK-20.04-V5.4.
https://source.codeaurora.org/external/qoriq/qoriq-components/linux/
For boards LS1021A-IOT, and Traverse-LS1043 which are not involved in
LSDK, port the dts patches from 4.14.
The patches are sorted into the following categories:
301-arch-xxxx
302-dts-xxxx
303-core-xxxx
701-net-xxxx
801-audio-xxxx
802-can-xxxx
803-clock-xxxx
804-crypto-xxxx
805-display-xxxx
806-dma-xxxx
807-gpio-xxxx
808-i2c-xxxx
809-jailhouse-xxxx
810-keys-xxxx
811-kvm-xxxx
812-pcie-xxxx
813-pm-xxxx
814-qe-xxxx
815-sata-xxxx
816-sdhc-xxxx
817-spi-xxxx
818-thermal-xxxx
819-uart-xxxx
820-usb-xxxx
821-vfio-xxxx
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Diffstat (limited to 'target/linux/layerscape/patches-5.4/820-usb-0004-usb-dwc3-use-suspend-clock-from-dt-to-set-power-down.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/820-usb-0004-usb-dwc3-use-suspend-clock-from-dt-to-set-power-down.patch | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/820-usb-0004-usb-dwc3-use-suspend-clock-from-dt-to-set-power-down.patch b/target/linux/layerscape/patches-5.4/820-usb-0004-usb-dwc3-use-suspend-clock-from-dt-to-set-power-down.patch new file mode 100644 index 0000000000..a1a06f0b9e --- /dev/null +++ b/target/linux/layerscape/patches-5.4/820-usb-0004-usb-dwc3-use-suspend-clock-from-dt-to-set-power-down.patch @@ -0,0 +1,62 @@ +From 0d4749abb6f7d042643ba1aa27a7388e8290b6f5 Mon Sep 17 00:00:00 2001 +From: Li Jun <jun.li@nxp.com> +Date: Tue, 16 Apr 2019 14:02:38 +0800 +Subject: [PATCH] usb: dwc3: use suspend clock from dt to set power down scale + +Since the new dwc3 use bulk clks including the suspend clk, so we can +use it to calculate the power down scale value. + +Acked-by: Peter Chen <peter.chen@nxp.com> +Signed-off-by: Li Jun <jun.li@nxp.com> +--- + drivers/usb/dwc3/core.c | 21 +++++++++++++++++++++ + drivers/usb/dwc3/core.h | 1 + + 2 files changed, 22 insertions(+) + +--- a/drivers/usb/dwc3/core.c ++++ b/drivers/usb/dwc3/core.c +@@ -894,6 +894,25 @@ static void dwc3_set_incr_burst_type(str + dwc3_writel(dwc->regs, DWC3_GSBUSCFG0, cfg); + } + ++static void dwc3_set_power_down_clk_scale(struct dwc3 *dwc) ++{ ++ u32 reg, scale; ++ ++ if (dwc->num_clks == 0) ++ return; ++ ++ /* ++ * The power down scale field specifies how many suspend_clk ++ * periods fit into a 16KHz clock period. When performing ++ * the division, round up the remainder. ++ */ ++ scale = DIV_ROUND_UP(clk_get_rate(dwc->clks[2].clk), 16384); ++ reg = dwc3_readl(dwc->regs, DWC3_GCTL); ++ reg &= ~(DWC3_GCTL_PWRDNSCALE_MASK); ++ reg |= DWC3_GCTL_PWRDNSCALE(scale); ++ dwc3_writel(dwc->regs, DWC3_GCTL, reg); ++} ++ + /** + * dwc3_core_init - Low-level initialization of DWC3 Core + * @dwc: Pointer to our controller context structure +@@ -918,6 +937,8 @@ static int dwc3_core_init(struct dwc3 *d + dwc->maximum_speed = USB_SPEED_HIGH; + } + ++ dwc3_set_power_down_clk_scale(dwc); ++ + ret = dwc3_phy_setup(dwc); + if (ret) + goto err0; +--- a/drivers/usb/dwc3/core.h ++++ b/drivers/usb/dwc3/core.h +@@ -223,6 +223,7 @@ + + /* Global Configuration Register */ + #define DWC3_GCTL_PWRDNSCALE(n) ((n) << 19) ++#define DWC3_GCTL_PWRDNSCALE_MASK DWC3_GCTL_PWRDNSCALE(0x1fff) + #define DWC3_GCTL_U2RSTECN BIT(16) + #define DWC3_GCTL_RAMCLKSEL(x) (((x) & DWC3_GCTL_CLK_MASK) << 6) + #define DWC3_GCTL_CLK_BUS (0) |