Merge tag 'usb-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB/PHY updates from Greg KH:
 "Here is the big set of USB and PHY driver updates for 4.15-rc1.

  There is the usual amount of gadget and xhci driver updates, along
  with phy and chipidea enhancements. There's also a lot of SPDX tags
  and license boilerplate cleanups as well, which provide some churn in
  the diffstat.

  Other major thing is the typec code that moved out of staging and into
  the "real" part of the drivers/usb/ tree, which was nice to see
  happen.

  All of these have been in linux-next with no reported issues for a
  while"

* tag 'usb-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (263 commits)
  usb: gadget: f_fs: Fix use-after-free in ffs_free_inst
  USB: usbfs: compute urb->actual_length for isochronous
  usb: core: message: remember to reset 'ret' to 0 when necessary
  USB: typec: Remove remaining redundant license text
  USB: typec: add SPDX identifiers to some files
  USB: renesas_usbhs: rcar?.h: add SPDX tags
  USB: chipidea: ci_hdrc_tegra.c: add SPDX line
  USB: host: xhci-debugfs: add SPDX lines
  USB: add SPDX identifiers to all remaining Makefiles
  usb: host: isp1362-hcd: remove a couple of redundant assignments
  USB: adutux: remove redundant variable minor
  usb: core: add a new usb_get_ptm_status() helper
  usb: core: add a 'type' parameter to usb_get_status()
  usb: core: introduce a new usb_get_std_status() helper
  usb: core: rename usb_get_status() 'type' argument to 'recip'
  usb: core: add Status Type definitions
  USB: gadget: Remove redundant license text
  USB: gadget: function: Remove redundant license text
  USB: gadget: udc: Remove redundant license text
  USB: gadget: legacy: Remove redundant license text
  ...

1 files changed, 73 insertions, 1 deletions

diff --git a/drivers/phy/broadcom/phy-brcm-sata.c b/drivers/phy/broadcom/phy-brcm-sata.c
index 9d7f74fe3d7c..3f953db70288 100644
--- a/drivers/phy/broadcom/phy-brcm-sata.c
+++ b/drivers/phy/broadcom/phy-brcm-sata.c
@@ -49,11 +49,29 @@ enum brcm_sata_phy_version {
 	BRCM_SATA_PHY_IPROC_SR,
 };
 
+enum brcm_sata_phy_rxaeq_mode {
+	RXAEQ_MODE_OFF = 0,
+	RXAEQ_MODE_AUTO,
+	RXAEQ_MODE_MANUAL,
+};
+
+static enum brcm_sata_phy_rxaeq_mode rxaeq_to_val(const char *m)
+{
+	if (!strcmp(m, "auto"))
+		return RXAEQ_MODE_AUTO;
+	else if (!strcmp(m, "manual"))
+		return RXAEQ_MODE_MANUAL;
+	else
+		return RXAEQ_MODE_OFF;
+}
+
 struct brcm_sata_port {
 	int portnum;
 	struct phy *phy;
 	struct brcm_sata_phy *phy_priv;
 	bool ssc_en;
+	enum brcm_sata_phy_rxaeq_mode rxaeq_mode;
+	u32 rxaeq_val;
 };
 
 struct brcm_sata_phy {
@@ -93,6 +111,15 @@ enum sata_phy_regs {
 	TX_ACTRL0				= 0x80,
 	TX_ACTRL0_TXPOL_FLIP			= BIT(6),
 
+	AEQRX_REG_BANK_0			= 0xd0,
+	AEQ_CONTROL1				= 0x81,
+	AEQ_CONTROL1_ENABLE			= BIT(2),
+	AEQ_CONTROL1_FREEZE			= BIT(3),
+	AEQ_FRC_EQ				= 0x83,
+	AEQ_FRC_EQ_FORCE			= BIT(0),
+	AEQ_FRC_EQ_FORCE_VAL			= BIT(1),
+	AEQRX_REG_BANK_1			= 0xe0,
+
 	OOB_REG_BANK				= 0x150,
 	OOB1_REG_BANK				= 0x160,
 	OOB_CTRL1				= 0x80,
@@ -190,7 +217,7 @@ static u32 brcm_sata_phy_rd(void __iomem *pcb_base, u32 bank, u32 ofs)
 #define STB_FMAX_VAL_DEFAULT	0x3df
 #define STB_FMAX_VAL_SSC	0x83
 
-static int brcm_stb_sata_init(struct brcm_sata_port *port)
+static void brcm_stb_sata_ssc_init(struct brcm_sata_port *port)
 {
 	void __iomem *base = brcm_sata_pcb_base(port);
 	struct brcm_sata_phy *priv = port->phy_priv;
@@ -215,10 +242,47 @@ static int brcm_stb_sata_init(struct brcm_sata_port *port)
 
 	brcm_sata_phy_wr(base, TXPMD_REG_BANK, TXPMD_TX_FREQ_CTRL_CONTROL3,
 			  ~TXPMD_TX_FREQ_CTRL_CONTROL3_FMAX_MASK, tmp);
+}
+
+#define AEQ_FRC_EQ_VAL_SHIFT	2
+#define AEQ_FRC_EQ_VAL_MASK	0x3f
+
+static int brcm_stb_sata_rxaeq_init(struct brcm_sata_port *port)
+{
+	void __iomem *base = brcm_sata_pcb_base(port);
+	u32 tmp = 0, reg = 0;
+
+	switch (port->rxaeq_mode) {
+	case RXAEQ_MODE_OFF:
+		return 0;
+
+	case RXAEQ_MODE_AUTO:
+		reg = AEQ_CONTROL1;
+		tmp = AEQ_CONTROL1_ENABLE | AEQ_CONTROL1_FREEZE;
+		break;
+
+	case RXAEQ_MODE_MANUAL:
+		reg = AEQ_FRC_EQ;
+		tmp = AEQ_FRC_EQ_FORCE | AEQ_FRC_EQ_FORCE_VAL;
+		if (port->rxaeq_val > AEQ_FRC_EQ_VAL_MASK)
+			return -EINVAL;
+		tmp |= port->rxaeq_val << AEQ_FRC_EQ_VAL_SHIFT;
+		break;
+	}
+
+	brcm_sata_phy_wr(base, AEQRX_REG_BANK_0, reg, ~tmp, tmp);
+	brcm_sata_phy_wr(base, AEQRX_REG_BANK_1, reg, ~tmp, tmp);
 
 	return 0;
 }
 
+static int brcm_stb_sata_init(struct brcm_sata_port *port)
+{
+	brcm_stb_sata_ssc_init(port);
+
+	return brcm_stb_sata_rxaeq_init(port);
+}
+
 /* NS2 SATA PLL1 defaults were characterized by H/W group */
 #define NS2_PLL1_ACTRL2_MAGIC	0x1df8
 #define NS2_PLL1_ACTRL3_MAGIC	0x2b00
@@ -463,6 +527,7 @@ MODULE_DEVICE_TABLE(of, brcm_sata_phy_of_match);
 
 static int brcm_sata_phy_probe(struct platform_device *pdev)
 {
+	const char *rxaeq_mode;
 	struct device *dev = &pdev->dev;
 	struct device_node *dn = dev->of_node, *child;
 	const struct of_device_id *of_id;
@@ -525,6 +590,13 @@ static int brcm_sata_phy_probe(struct platform_device *pdev)
 		port->portnum = id;
 		port->phy_priv = priv;
 		port->phy = devm_phy_create(dev, child, &phy_ops);
+		port->rxaeq_mode = RXAEQ_MODE_OFF;
+		if (!of_property_read_string(child, "brcm,rxaeq-mode",
+					     &rxaeq_mode))
+			port->rxaeq_mode = rxaeq_to_val(rxaeq_mode);
+		if (port->rxaeq_mode == RXAEQ_MODE_MANUAL)
+			of_property_read_u32(child, "brcm,rxaeq-value",
+					     &port->rxaeq_val);
 		port->ssc_en = of_property_read_bool(child, "brcm,enable-ssc");
 		if (IS_ERR(port->phy)) {
 			dev_err(dev, "failed to create PHY\n");