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authorLinus Torvalds <torvalds@linux-foundation.org>2021-04-26 12:11:52 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-04-26 12:11:52 -0700
commit37f00ab4a003f371f81e0eae76cf372f06dec780 (patch)
treec6217483f22a0fac876f12af53f4b8948200f2fd /drivers/clk
parent2b90506a8186df5f7c81ad1ebd250103d8469e27 (diff)
parent5ffa828534036348fa90fb3079ccc0972d202c4a (diff)
downloadlinux-37f00ab4a003f371f81e0eae76cf372f06dec780.tar.gz
Merge tag 'arm-drivers-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC driver updates from Arnd Bergmann:
 "Updates for SoC specific drivers include a few subsystems that have
  their own maintainers but send them through the soc tree:

  TEE/OP-TEE:
   - Add tracepoints around calls to secure world

  Memory controller drivers:
   - Minor fixes for Renesas, Exynos, Mediatek and Tegra platforms
   - Add debug statistics to Tegra20 memory controller
   - Update Tegra bindings and convert to dtschema

  ARM SCMI Firmware:
   - Support for modular SCMI protocols and vendor specific extensions
   - New SCMI IIO driver
   - Per-cpu DVFS

  The other driver changes are all from the platform maintainers
  directly and reflect the drivers that don't fit into any other
  subsystem as well as treewide changes for a particular platform.

  SoCFPGA:
   - Various cleanups contributed by Krzysztof Kozlowski

  Mediatek:
   - add MT8183 support to mutex driver
   - MMSYS: use per SoC array to describe the possible routing
   - add MMSYS support for MT8183 and MT8167
   - add support for PMIC wrapper with integrated arbiter
   - add support for MT8192/MT6873

  Tegra:
   - Bug fixes to PMC and clock drivers

  NXP/i.MX:
   - Update SCU power domain driver to keep console domain power on.
   - Add missing ADC1 power domain to SCU power domain driver.
   - Update comments for single global power domain in SCU power domain
     driver.
   - Add i.MX51/i.MX53 unique id support to i.MX SoC driver.

  NXP/FSL SoC driver updates for v5.13
   - Add ACPI support for RCPM driver
   - Use generic io{read,write} for QE drivers after performance
     optimized for PowerPC
   - Fix QBMAN probe to cleanup HW states correctly for kexec
   - Various cleanup and style fix for QBMAN/QE/GUTS drivers

  OMAP:
   - Preparation to use devicetree for genpd
   - ti-sysc needs iorange check improved when the interconnect target
     module has no control registers listed
   - ti-sysc needs to probe l4_wkup and l4_cfg interconnects first to
     avoid issues with missing resources and unnecessary deferred probe
   - ti-sysc debug option can now detect more devices
   - ti-sysc now warns if an old incomplete devicetree data is found as
     we now rely on it being complete for am3 and 4
   - soc init code needs to check for prcm and prm nodes for omap4/5 and
     dra7
   - omap-prm driver needs to enable autoidle retention support for
     omap4
   - omap5 clocks are missing gpmc and ocmc clock registers
   - pci-dra7xx now needs to use builtin_platform_driver instead of
     using builtin_platform_driver_probe for deferred probe to work

  Raspberry Pi:
   - Fix-up all RPi firmware drivers so as for unbind to happen in an
     orderly fashion
   - Support for RPi's PoE hat PWM bus

  Qualcomm
   - Improved detection for SCM calling conventions
   - Support for OEM specific wifi firmware path
   - Added drivers for SC7280/SM8350: RPMH, LLCC< AOSS QMP"

* tag 'arm-drivers-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (165 commits)
  soc: aspeed: fix a ternary sign expansion bug
  memory: mtk-smi: Add device-link between smi-larb and smi-common
  memory: samsung: exynos5422-dmc: handle clk_set_parent() failure
  memory: renesas-rpc-if: fix possible NULL pointer dereference of resource
  clk: socfpga: fix iomem pointer cast on 64-bit
  soc: aspeed: Adapt to new LPC device tree layout
  pinctrl: aspeed-g5: Adapt to new LPC device tree layout
  ipmi: kcs: aspeed: Adapt to new LPC DTS layout
  ARM: dts: Remove LPC BMC and Host partitions
  dt-bindings: aspeed-lpc: Remove LPC partitioning
  soc: fsl: enable acpi support in RCPM driver
  soc: qcom: mdt_loader: Detect truncated read of segments
  soc: qcom: mdt_loader: Validate that p_filesz < p_memsz
  soc: qcom: pdr: Fix error return code in pdr_register_listener
  firmware: qcom_scm: Fix kernel-doc function names to match
  firmware: qcom_scm: Suppress sysfs bind attributes
  firmware: qcom_scm: Workaround lack of "is available" call on SC7180
  firmware: qcom_scm: Reduce locking section for __get_convention()
  firmware: qcom_scm: Make __qcom_scm_is_call_available() return bool
  Revert "soc: fsl: qe: introduce qe_io{read,write}* wrappers"
  ...
Diffstat (limited to 'drivers/clk')
-rw-r--r--drivers/clk/Kconfig1
-rw-r--r--drivers/clk/Makefile4
-rw-r--r--drivers/clk/bcm/clk-raspberrypi.c2
-rw-r--r--drivers/clk/clk-scmi.c28
-rw-r--r--drivers/clk/socfpga/Kconfig19
-rw-r--r--drivers/clk/socfpga/Makefile11
-rw-r--r--drivers/clk/tegra/clk-pll.c12
-rw-r--r--drivers/clk/tegra/clk-tegra210.c53
8 files changed, 97 insertions, 33 deletions
diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index a588d56502d4..1d1891b9cad2 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -394,6 +394,7 @@ source "drivers/clk/renesas/Kconfig"
 source "drivers/clk/rockchip/Kconfig"
 source "drivers/clk/samsung/Kconfig"
 source "drivers/clk/sifive/Kconfig"
+source "drivers/clk/socfpga/Kconfig"
 source "drivers/clk/sprd/Kconfig"
 source "drivers/clk/sunxi/Kconfig"
 source "drivers/clk/sunxi-ng/Kconfig"
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index b22ae4f81e0b..9b582b3fca34 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -104,9 +104,7 @@ obj-y					+= renesas/
 obj-$(CONFIG_ARCH_ROCKCHIP)		+= rockchip/
 obj-$(CONFIG_COMMON_CLK_SAMSUNG)	+= samsung/
 obj-$(CONFIG_CLK_SIFIVE)		+= sifive/
-obj-$(CONFIG_ARCH_SOCFPGA)		+= socfpga/
-obj-$(CONFIG_ARCH_AGILEX)		+= socfpga/
-obj-$(CONFIG_ARCH_STRATIX10)		+= socfpga/
+obj-y					+= socfpga/
 obj-$(CONFIG_PLAT_SPEAR)		+= spear/
 obj-y					+= sprd/
 obj-$(CONFIG_ARCH_STI)			+= st/
diff --git a/drivers/clk/bcm/clk-raspberrypi.c b/drivers/clk/bcm/clk-raspberrypi.c
index f89b9cfc4309..dd3b71eafabf 100644
--- a/drivers/clk/bcm/clk-raspberrypi.c
+++ b/drivers/clk/bcm/clk-raspberrypi.c
@@ -314,7 +314,7 @@ static int raspberrypi_clk_probe(struct platform_device *pdev)
 		return -ENOENT;
 	}
 
-	firmware = rpi_firmware_get(firmware_node);
+	firmware = devm_rpi_firmware_get(&pdev->dev, firmware_node);
 	of_node_put(firmware_node);
 	if (!firmware)
 		return -EPROBE_DEFER;
diff --git a/drivers/clk/clk-scmi.c b/drivers/clk/clk-scmi.c
index c754dfbb73fd..1e357d364ca2 100644
--- a/drivers/clk/clk-scmi.c
+++ b/drivers/clk/clk-scmi.c
@@ -2,7 +2,7 @@
 /*
  * System Control and Power Interface (SCMI) Protocol based clock driver
  *
- * Copyright (C) 2018 ARM Ltd.
+ * Copyright (C) 2018-2021 ARM Ltd.
  */
 
 #include <linux/clk-provider.h>
@@ -13,11 +13,13 @@
 #include <linux/scmi_protocol.h>
 #include <asm/div64.h>
 
+static const struct scmi_clk_proto_ops *scmi_proto_clk_ops;
+
 struct scmi_clk {
 	u32 id;
 	struct clk_hw hw;
 	const struct scmi_clock_info *info;
-	const struct scmi_handle *handle;
+	const struct scmi_protocol_handle *ph;
 };
 
 #define to_scmi_clk(clk) container_of(clk, struct scmi_clk, hw)
@@ -29,7 +31,7 @@ static unsigned long scmi_clk_recalc_rate(struct clk_hw *hw,
 	u64 rate;
 	struct scmi_clk *clk = to_scmi_clk(hw);
 
-	ret = clk->handle->clk_ops->rate_get(clk->handle, clk->id, &rate);
+	ret = scmi_proto_clk_ops->rate_get(clk->ph, clk->id, &rate);
 	if (ret)
 		return 0;
 	return rate;
@@ -69,21 +71,21 @@ static int scmi_clk_set_rate(struct clk_hw *hw, unsigned long rate,
 {
 	struct scmi_clk *clk = to_scmi_clk(hw);
 
-	return clk->handle->clk_ops->rate_set(clk->handle, clk->id, rate);
+	return scmi_proto_clk_ops->rate_set(clk->ph, clk->id, rate);
 }
 
 static int scmi_clk_enable(struct clk_hw *hw)
 {
 	struct scmi_clk *clk = to_scmi_clk(hw);
 
-	return clk->handle->clk_ops->enable(clk->handle, clk->id);
+	return scmi_proto_clk_ops->enable(clk->ph, clk->id);
 }
 
 static void scmi_clk_disable(struct clk_hw *hw)
 {
 	struct scmi_clk *clk = to_scmi_clk(hw);
 
-	clk->handle->clk_ops->disable(clk->handle, clk->id);
+	scmi_proto_clk_ops->disable(clk->ph, clk->id);
 }
 
 static const struct clk_ops scmi_clk_ops = {
@@ -142,11 +144,17 @@ static int scmi_clocks_probe(struct scmi_device *sdev)
 	struct device *dev = &sdev->dev;
 	struct device_node *np = dev->of_node;
 	const struct scmi_handle *handle = sdev->handle;
+	struct scmi_protocol_handle *ph;
 
-	if (!handle || !handle->clk_ops)
+	if (!handle)
 		return -ENODEV;
 
-	count = handle->clk_ops->count_get(handle);
+	scmi_proto_clk_ops =
+		handle->devm_protocol_get(sdev, SCMI_PROTOCOL_CLOCK, &ph);
+	if (IS_ERR(scmi_proto_clk_ops))
+		return PTR_ERR(scmi_proto_clk_ops);
+
+	count = scmi_proto_clk_ops->count_get(ph);
 	if (count < 0) {
 		dev_err(dev, "%pOFn: invalid clock output count\n", np);
 		return -EINVAL;
@@ -167,14 +175,14 @@ static int scmi_clocks_probe(struct scmi_device *sdev)
 		if (!sclk)
 			return -ENOMEM;
 
-		sclk->info = handle->clk_ops->info_get(handle, idx);
+		sclk->info = scmi_proto_clk_ops->info_get(ph, idx);
 		if (!sclk->info) {
 			dev_dbg(dev, "invalid clock info for idx %d\n", idx);
 			continue;
 		}
 
 		sclk->id = idx;
-		sclk->handle = handle;
+		sclk->ph = ph;
 
 		err = scmi_clk_ops_init(dev, sclk);
 		if (err) {
diff --git a/drivers/clk/socfpga/Kconfig b/drivers/clk/socfpga/Kconfig
new file mode 100644
index 000000000000..0cf16b894efb
--- /dev/null
+++ b/drivers/clk/socfpga/Kconfig
@@ -0,0 +1,19 @@
+# SPDX-License-Identifier: GPL-2.0
+config CLK_INTEL_SOCFPGA
+	bool "Intel SoCFPGA family clock support" if COMPILE_TEST && !ARCH_INTEL_SOCFPGA
+	default ARCH_INTEL_SOCFPGA
+	help
+	  Support for the clock controllers present on Intel SoCFPGA and eASIC
+	  devices like Aria, Cyclone, Stratix 10, Agilex and N5X eASIC.
+
+if CLK_INTEL_SOCFPGA
+
+config CLK_INTEL_SOCFPGA32
+	bool "Intel Aria / Cyclone clock controller support" if COMPILE_TEST && (!ARM || !ARCH_INTEL_SOCFPGA)
+	default ARM && ARCH_INTEL_SOCFPGA
+
+config CLK_INTEL_SOCFPGA64
+	bool "Intel Stratix / Agilex / N5X clock controller support" if COMPILE_TEST && (!ARM64 || !ARCH_INTEL_SOCFPGA)
+	default ARM64 && ARCH_INTEL_SOCFPGA
+
+endif # CLK_INTEL_SOCFPGA
diff --git a/drivers/clk/socfpga/Makefile b/drivers/clk/socfpga/Makefile
index bf736f8d201a..e8dfce339c91 100644
--- a/drivers/clk/socfpga/Makefile
+++ b/drivers/clk/socfpga/Makefile
@@ -1,7 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
-obj-$(CONFIG_ARCH_SOCFPGA) += clk.o clk-gate.o clk-pll.o clk-periph.o
-obj-$(CONFIG_ARCH_SOCFPGA) += clk-pll-a10.o clk-periph-a10.o clk-gate-a10.o
-obj-$(CONFIG_ARCH_STRATIX10) += clk-s10.o
-obj-$(CONFIG_ARCH_STRATIX10) += clk-pll-s10.o clk-periph-s10.o clk-gate-s10.o
-obj-$(CONFIG_ARCH_AGILEX) += clk-agilex.o
-obj-$(CONFIG_ARCH_AGILEX) += clk-pll-s10.o clk-periph-s10.o clk-gate-s10.o
+obj-$(CONFIG_CLK_INTEL_SOCFPGA32) += clk.o clk-gate.o clk-pll.o clk-periph.o \
+				     clk-pll-a10.o clk-periph-a10.o clk-gate-a10.o
+obj-$(CONFIG_CLK_INTEL_SOCFPGA64) += clk-s10.o \
+				     clk-pll-s10.o clk-periph-s10.o clk-gate-s10.o \
+				     clk-agilex.o
diff --git a/drivers/clk/tegra/clk-pll.c b/drivers/clk/tegra/clk-pll.c
index c5cc0a2dac6f..0193cebe8c5a 100644
--- a/drivers/clk/tegra/clk-pll.c
+++ b/drivers/clk/tegra/clk-pll.c
@@ -2515,18 +2515,6 @@ static int clk_plle_tegra210_enable(struct clk_hw *hw)
 	pll_writel(val, PLLE_SS_CTRL, pll);
 	udelay(1);
 
-	val = pll_readl_misc(pll);
-	val &= ~PLLE_MISC_IDDQ_SW_CTRL;
-	pll_writel_misc(val, pll);
-
-	val = pll_readl(pll->params->aux_reg, pll);
-	val |= (PLLE_AUX_USE_LOCKDET | PLLE_AUX_SS_SEQ_INCLUDE);
-	val &= ~(PLLE_AUX_ENABLE_SWCTL | PLLE_AUX_SS_SWCTL);
-	pll_writel(val, pll->params->aux_reg, pll);
-	udelay(1);
-	val |= PLLE_AUX_SEQ_ENABLE;
-	pll_writel(val, pll->params->aux_reg, pll);
-
 out:
 	if (pll->lock)
 		spin_unlock_irqrestore(pll->lock, flags);
diff --git a/drivers/clk/tegra/clk-tegra210.c b/drivers/clk/tegra/clk-tegra210.c
index 68cbb98af567..b9099012dc7b 100644
--- a/drivers/clk/tegra/clk-tegra210.c
+++ b/drivers/clk/tegra/clk-tegra210.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /*
- * Copyright (c) 2012-2014 NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2012-2020 NVIDIA CORPORATION.  All rights reserved.
  */
 
 #include <linux/io.h>
@@ -403,6 +403,14 @@ static unsigned long tegra210_input_freq[] = {
 #define PLLRE_BASE_DEFAULT_MASK		0x1c000000
 #define PLLRE_MISC0_WRITE_MASK		0x67ffffff
 
+/* PLLE */
+#define PLLE_MISC_IDDQ_SW_CTRL		(1 << 14)
+#define PLLE_AUX_USE_LOCKDET		(1 << 3)
+#define PLLE_AUX_SS_SEQ_INCLUDE		(1 << 31)
+#define PLLE_AUX_ENABLE_SWCTL		(1 << 4)
+#define PLLE_AUX_SS_SWCTL		(1 << 6)
+#define PLLE_AUX_SEQ_ENABLE		(1 << 24)
+
 /* PLLX */
 #define PLLX_USE_DYN_RAMP		1
 #define PLLX_BASE_LOCK			(1 << 27)
@@ -489,6 +497,49 @@ static unsigned long tegra210_input_freq[] = {
 #define PLLU_MISC0_WRITE_MASK		0xbfffffff
 #define PLLU_MISC1_WRITE_MASK		0x00000007
 
+bool tegra210_plle_hw_sequence_is_enabled(void)
+{
+	u32 value;
+
+	value = readl_relaxed(clk_base + PLLE_AUX);
+	if (value & PLLE_AUX_SEQ_ENABLE)
+		return true;
+
+	return false;
+}
+EXPORT_SYMBOL_GPL(tegra210_plle_hw_sequence_is_enabled);
+
+int tegra210_plle_hw_sequence_start(void)
+{
+	u32 value;
+
+	if (tegra210_plle_hw_sequence_is_enabled())
+		return 0;
+
+	/* skip if PLLE is not enabled yet */
+	value = readl_relaxed(clk_base + PLLE_MISC0);
+	if (!(value & PLLE_MISC_LOCK))
+		return -EIO;
+
+	value &= ~PLLE_MISC_IDDQ_SW_CTRL;
+	writel_relaxed(value, clk_base + PLLE_MISC0);
+
+	value = readl_relaxed(clk_base + PLLE_AUX);
+	value |= (PLLE_AUX_USE_LOCKDET | PLLE_AUX_SS_SEQ_INCLUDE);
+	value &= ~(PLLE_AUX_ENABLE_SWCTL | PLLE_AUX_SS_SWCTL);
+	writel_relaxed(value, clk_base + PLLE_AUX);
+
+	fence_udelay(1, clk_base);
+
+	value |= PLLE_AUX_SEQ_ENABLE;
+	writel_relaxed(value, clk_base + PLLE_AUX);
+
+	fence_udelay(1, clk_base);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(tegra210_plle_hw_sequence_start);
+
 void tegra210_xusb_pll_hw_control_enable(void)
 {
 	u32 val;