Merge tag 'soc-drivers-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull SoC driver updates from Arnd Bergmann:
 "This is the first half of the driver changes:

   - A treewide interface change to the "syscore" operations for power
     management, as a preparation for future Tegra specific changes

   - Reset controller updates with added drivers for LAN969x, eic770 and
     RZ/G3S SoCs

   - Protection of system controller registers on Renesas and Google
     SoCs, to prevent trivially triggering a system crash from e.g.
     debugfs access

   - soc_device identification updates on Nvidia, Exynos and Mediatek

   - debugfs support in the ST STM32 firewall driver

   - Minor updates for SoC drivers on AMD/Xilinx, Renesas, Allwinner, TI

   - Cleanups for memory controller support on Nvidia and Renesas"

* tag 'soc-drivers-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (114 commits)
  memory: tegra186-emc: Fix missing put_bpmp
  Documentation: reset: Remove reset_controller_add_lookup()
  reset: fix BIT macro reference
  reset: rzg2l-usbphy-ctrl: Fix a NULL vs IS_ERR() bug in probe
  reset: th1520: Support reset controllers in more subsystems
  reset: th1520: Prepare for supporting multiple controllers
  dt-bindings: reset: thead,th1520-reset: Add controllers for more subsys
  dt-bindings: reset: thead,th1520-reset: Remove non-VO-subsystem resets
  reset: remove legacy reset lookup code
  clk: davinci: psc: drop unused reset lookup
  reset: rzg2l-usbphy-ctrl: Add support for RZ/G3S SoC
  reset: rzg2l-usbphy-ctrl: Add support for USB PWRRDY
  dt-bindings: reset: renesas,rzg2l-usbphy-ctrl: Document RZ/G3S support
  reset: eswin: Add eic7700 reset driver
  dt-bindings: reset: eswin: Documentation for eic7700 SoC
  reset: sparx5: add LAN969x support
  dt-bindings: reset: microchip: Add LAN969x support
  soc: rockchip: grf: Add select correct PWM implementation on RK3368
  soc/tegra: pmc: Add USB wake events for Tegra234
  amba: tegra-ahb: Fix device leak on SMMU enable
  ...

1 files changed, 60 insertions, 0 deletions

diff --git a/drivers/reset/reset-rzg2l-usbphy-ctrl.c b/drivers/reset/reset-rzg2l-usbphy-ctrl.c
index 8a7f167e405e..4ecb9acb2641 100644
--- a/drivers/reset/reset-rzg2l-usbphy-ctrl.c
+++ b/drivers/reset/reset-rzg2l-usbphy-ctrl.c
@@ -13,6 +13,7 @@
 #include <linux/regmap.h>
 #include <linux/reset.h>
 #include <linux/reset-controller.h>
+#include <linux/mfd/syscon.h>
 
 #define RESET			0x000
 #define VBENCTL			0x03c
@@ -91,8 +92,14 @@ static int rzg2l_usbphy_ctrl_status(struct reset_controller_dev *rcdev,
 	return !!(readl(priv->base + RESET) & port_mask);
 }
 
+#define RZG2L_USBPHY_CTRL_PWRRDY	1
+
 static const struct of_device_id rzg2l_usbphy_ctrl_match_table[] = {
 	{ .compatible = "renesas,rzg2l-usbphy-ctrl" },
+	{
+		.compatible = "renesas,r9a08g045-usbphy-ctrl",
+		.data = (void *)RZG2L_USBPHY_CTRL_PWRRDY
+	},
 	{ /* Sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, rzg2l_usbphy_ctrl_match_table);
@@ -110,6 +117,55 @@ static const struct regmap_config rzg2l_usb_regconf = {
 	.max_register = 1,
 };
 
+static void rzg2l_usbphy_ctrl_set_pwrrdy(struct regmap_field *pwrrdy,
+					 bool power_on)
+{
+	u32 val = power_on ? 0 : 1;
+
+	/* The initialization path guarantees that the mask is 1 bit long. */
+	regmap_field_update_bits(pwrrdy, 1, val);
+}
+
+static void rzg2l_usbphy_ctrl_pwrrdy_off(void *data)
+{
+	rzg2l_usbphy_ctrl_set_pwrrdy(data, false);
+}
+
+static int rzg2l_usbphy_ctrl_pwrrdy_init(struct device *dev)
+{
+	struct regmap_field *pwrrdy;
+	struct reg_field field;
+	struct regmap *regmap;
+	const int *data;
+	u32 args[2];
+
+	data = device_get_match_data(dev);
+	if ((uintptr_t)data != RZG2L_USBPHY_CTRL_PWRRDY)
+		return 0;
+
+	regmap = syscon_regmap_lookup_by_phandle_args(dev->of_node,
+						      "renesas,sysc-pwrrdy",
+						      ARRAY_SIZE(args), args);
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
+
+	/* Don't allow more than one bit in mask. */
+	if (hweight32(args[1]) != 1)
+		return -EINVAL;
+
+	field.reg = args[0];
+	field.lsb = __ffs(args[1]);
+	field.msb = __fls(args[1]);
+
+	pwrrdy = devm_regmap_field_alloc(dev, regmap, field);
+	if (IS_ERR(pwrrdy))
+		return PTR_ERR(pwrrdy);
+
+	rzg2l_usbphy_ctrl_set_pwrrdy(pwrrdy, true);
+
+	return devm_add_action_or_reset(dev, rzg2l_usbphy_ctrl_pwrrdy_off, pwrrdy);
+}
+
 static int rzg2l_usbphy_ctrl_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
@@ -132,6 +188,10 @@ static int rzg2l_usbphy_ctrl_probe(struct platform_device *pdev)
 	if (IS_ERR(regmap))
 		return PTR_ERR(regmap);
 
+	error = rzg2l_usbphy_ctrl_pwrrdy_init(dev);
+	if (error)
+		return error;
+
 	priv->rstc = devm_reset_control_get_exclusive(&pdev->dev, NULL);
 	if (IS_ERR(priv->rstc))
 		return dev_err_probe(dev, PTR_ERR(priv->rstc),