Merge tag 'arm-soc-drivers-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC driver updates from Arnd Bergmann:
 "There are a couple of subsystems maintained by other people that merge
  their drivers through the SoC tree, those changes include:

   - The SCMI firmware framework gains support for sensor notifications
     and for controlling voltage domains.

   - A large update for the Tegra memory controller driver, integrating
     it better with the interconnect framework

   - The memory controller subsystem gains support for Mediatek MT8192

   - The reset controller framework gains support for sharing pulsed
     resets

  For Soc specific drivers in drivers/soc, the main changes are

   - The Allwinner/sunxi MBUS gets a rework for the way it handles
     dma_map_ops and offsets between physical and dma address spaces.

   - An errata fix plus some cleanups for Freescale Layerscape SoCs

   - A cleanup for renesas drivers regarding MMIO accesses.

   - New SoC specific drivers for Mediatek MT8192 and MT8183 power
     domains

   - New SoC specific drivers for Aspeed AST2600 LPC bus control and SoC
     identification.

   - Core Power Domain support for Qualcomm MSM8916, MSM8939, SDM660 and
     SDX55.

   - A rework of the TI AM33xx 'genpd' power domain support to use
     information from DT instead of platform data

   - Support for TI AM64x SoCs

   - Allow building some Amlogic drivers as modules instead of built-in

  Finally, there are numerous cleanups and smaller bug fixes for
  Mediatek, Tegra, Samsung, Qualcomm, TI OMAP, Amlogic, Rockchips,
  Renesas, and Xilinx SoCs"

* tag 'arm-soc-drivers-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (222 commits)
  soc: mediatek: mmsys: Specify HAS_IOMEM dependency for MTK_MMSYS
  firmware: xilinx: Properly align function parameter
  firmware: xilinx: Add a blank line after function declaration
  firmware: xilinx: Remove additional newline
  firmware: xilinx: Fix kernel-doc warnings
  firmware: xlnx-zynqmp: fix compilation warning
  soc: xilinx: vcu: add missing register NUM_CORE
  soc: xilinx: vcu: use vcu-settings syscon registers
  dt-bindings: soc: xlnx: extract xlnx, vcu-settings to separate binding
  soc: xilinx: vcu: drop useless success message
  clk: samsung: mark PM functions as __maybe_unused
  soc: samsung: exynos-chipid: initialize later - with arch_initcall
  soc: samsung: exynos-chipid: order list of SoCs by name
  memory: jz4780_nemc: Fix potential NULL dereference in jz4780_nemc_probe()
  memory: ti-emif-sram: only build for ARMv7
  memory: tegra30: Support interconnect framework
  memory: tegra20: Support hardware versioning and clean up OPP table initialization
  dt-bindings: memory: tegra20-emc: Document opp-supported-hw property
  soc: rockchip: io-domain: Fix error return code in rockchip_iodomain_probe()
  reset-controller: ti: force the write operation when assert or deassert
  ...

1 files changed, 30 insertions, 11 deletions

diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
index 92ecf1a78ec7..a27d751cf219 100644
--- a/drivers/bus/ti-sysc.c
+++ b/drivers/bus/ti-sysc.c
@@ -853,8 +853,12 @@ static int sysc_ioremap(struct sysc *ddata)
  */
 static int sysc_map_and_check_registers(struct sysc *ddata)
 {
+	struct device_node *np = ddata->dev->of_node;
 	int error;
 
+	if (!of_get_property(np, "reg", NULL))
+		return 0;
+
 	error = sysc_parse_and_check_child_range(ddata);
 	if (error)
 		return error;
@@ -1222,10 +1226,10 @@ static int __maybe_unused sysc_runtime_suspend(struct device *dev)
 	ddata->enabled = false;
 
 err_allow_idle:
-	reset_control_assert(ddata->rsts);
-
 	sysc_clkdm_allow_idle(ddata);
 
+	reset_control_assert(ddata->rsts);
+
 	return error;
 }
 
@@ -1379,6 +1383,8 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = {
 		   SYSC_QUIRK_CLKDM_NOAUTO),
 	SYSC_QUIRK("dwc3", 0x488c0000, 0, 0x10, -ENODEV, 0x500a0200, 0xffffffff,
 		   SYSC_QUIRK_CLKDM_NOAUTO),
+	SYSC_QUIRK("gpmc", 0, 0, 0x10, 0x14, 0x00000060, 0xffffffff,
+		   SYSC_QUIRK_GPMC_DEBUG),
 	SYSC_QUIRK("hdmi", 0, 0, 0x10, -ENODEV, 0x50030200, 0xffffffff,
 		   SYSC_QUIRK_OPT_CLKS_NEEDED),
 	SYSC_QUIRK("hdq1w", 0, 0, 0x14, 0x18, 0x00000006, 0xffffffff,
@@ -1814,6 +1820,14 @@ static void sysc_init_module_quirks(struct sysc *ddata)
 		return;
 	}
 
+#ifdef CONFIG_OMAP_GPMC_DEBUG
+	if (ddata->cfg.quirks & SYSC_QUIRK_GPMC_DEBUG) {
+		ddata->cfg.quirks |= SYSC_QUIRK_NO_RESET_ON_INIT;
+
+		return;
+	}
+#endif
+
 	if (ddata->cfg.quirks & SYSC_MODULE_QUIRK_I2C) {
 		ddata->pre_reset_quirk = sysc_pre_reset_quirk_i2c;
 		ddata->post_reset_quirk = sysc_post_reset_quirk_i2c;
@@ -1945,6 +1959,7 @@ static int sysc_reset(struct sysc *ddata)
  */
 static int sysc_init_module(struct sysc *ddata)
 {
+	bool rstctrl_deasserted = false;
 	int error = 0;
 
 	error = sysc_clockdomain_init(ddata);
@@ -1969,6 +1984,7 @@ static int sysc_init_module(struct sysc *ddata)
 		error = reset_control_deassert(ddata->rsts);
 		if (error)
 			goto err_main_clocks;
+		rstctrl_deasserted = true;
 	}
 
 	ddata->revision = sysc_read_revision(ddata);
@@ -1978,13 +1994,13 @@ static int sysc_init_module(struct sysc *ddata)
 	if (ddata->legacy_mode) {
 		error = sysc_legacy_init(ddata);
 		if (error)
-			goto err_reset;
+			goto err_main_clocks;
 	}
 
 	if (!ddata->legacy_mode) {
 		error = sysc_enable_module(ddata->dev);
 		if (error)
-			goto err_reset;
+			goto err_main_clocks;
 	}
 
 	error = sysc_reset(ddata);
@@ -1994,10 +2010,6 @@ static int sysc_init_module(struct sysc *ddata)
 	if (error && !ddata->legacy_mode)
 		sysc_disable_module(ddata->dev);
 
-err_reset:
-	if (error && !(ddata->cfg.quirks & SYSC_QUIRK_NO_RESET_ON_INIT))
-		reset_control_assert(ddata->rsts);
-
 err_main_clocks:
 	if (error)
 		sysc_disable_main_clocks(ddata);
@@ -2008,6 +2020,10 @@ err_opt_clocks:
 		sysc_clkdm_allow_idle(ddata);
 	}
 
+	if (error && rstctrl_deasserted &&
+	    !(ddata->cfg.quirks & SYSC_QUIRK_NO_RESET_ON_INIT))
+		reset_control_assert(ddata->rsts);
+
 	return error;
 }
 
@@ -2909,6 +2925,9 @@ static int sysc_probe(struct platform_device *pdev)
 	if (!ddata)
 		return -ENOMEM;
 
+	ddata->offsets[SYSC_REVISION] = -ENODEV;
+	ddata->offsets[SYSC_SYSCONFIG] = -ENODEV;
+	ddata->offsets[SYSC_SYSSTATUS] = -ENODEV;
 	ddata->dev = &pdev->dev;
 	platform_set_drvdata(pdev, ddata);
 
@@ -2975,9 +2994,6 @@ static int sysc_probe(struct platform_device *pdev)
 	}
 
 	/* Balance use counts as PM runtime should have enabled these all */
-	if (!(ddata->cfg.quirks & SYSC_QUIRK_NO_RESET_ON_INIT))
-		reset_control_assert(ddata->rsts);
-
 	if (!(ddata->cfg.quirks &
 	      (SYSC_QUIRK_NO_IDLE | SYSC_QUIRK_NO_IDLE_ON_INIT))) {
 		sysc_disable_main_clocks(ddata);
@@ -2985,6 +3001,9 @@ static int sysc_probe(struct platform_device *pdev)
 		sysc_clkdm_allow_idle(ddata);
 	}
 
+	if (!(ddata->cfg.quirks & SYSC_QUIRK_NO_RESET_ON_INIT))
+		reset_control_assert(ddata->rsts);
+
 	sysc_show_registers(ddata);
 
 	ddata->dev->type = &sysc_device_type;