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

Pull ARM SoC driver updates from Arnd Bergmann:
 "The most noteworthy SoC driver changes this time include:

   - The TEE subsystem gains an in-kernel interface to access the TEE
     from device drivers.

   - The reset controller subsystem gains a driver for the Qualcomm
     Snapdragon 845 Power Domain Controller.

   - The Xilinx Zynq platform now has a firmware interface for its
     platform management unit. This contains a firmware "ioctl"
     interface that was a little controversial at first, but the version
     we merged solved that by not exposing arbitrary firmware calls to
     user space.

   - The Amlogic Meson platform gains a "canvas" driver that is used for
     video processing and shared between different high-level drivers.

  The rest is more of the usual, mostly related to SoC specific power
  management support and core drivers in drivers/soc:

   - Several Renesas SoCs (RZ/G1N, RZ/G2M, R-Car V3M, RZ/A2M) gain new
     features related to power and reset control.

   - The Mediatek mt8183 and mt6765 SoC platforms gain support for their
     respective power management chips.

   - A new driver for NXP i.MX8, which need a firmware interface for
     power management.

   - The SCPI firmware interface now contains support estimating power
     usage of performance states

   - The NVIDIA Tegra "pmc" driver gains a few new features, in
     particular a pinctrl interface for configuring the pads.

   - Lots of small changes for Qualcomm, in particular the "smem" device
     driver.

   - Some cleanups for the TI OMAP series related to their sysc
     controller.

  Additional cleanups and bugfixes in SoC specific drivers include the
  Meson, Keystone, NXP, AT91, Sunxi, Actions, and Tegra platforms"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (129 commits)
  firmware: tegra: bpmp: Implement suspend/resume support
  drivers: clk: Add ZynqMP clock driver
  dt-bindings: clock: Add bindings for ZynqMP clock driver
  firmware: xilinx: Add zynqmp IOCTL API for device control
  Documentation: xilinx: Add documentation for eemi APIs
  MAINTAINERS: imx: include drivers/firmware/imx path
  firmware: imx: add misc svc support
  firmware: imx: add SCU firmware driver support
  reset: Fix potential use-after-free in __of_reset_control_get()
  dt-bindings: arm: fsl: add scu binding doc
  soc: fsl: qbman: add interrupt coalesce changing APIs
  soc: fsl: bman_portals: defer probe after bman's probe
  soc: fsl: qbman: Use last response to determine valid bit
  soc: fsl: qbman: Add 64 bit DMA addressing requirement to QBMan
  soc: fsl: qbman: replace CPU 0 with any online CPU in hotplug handlers
  soc: fsl: qbman: Check if CPU is offline when initializing portals
  reset: qcom: PDC Global (Power Domain Controller) reset controller
  dt-bindings: reset: Add PDC Global binding for SDM845 SoCs
  reset: Grammar s/more then once/more than once/
  bus: ti-sysc: Just use SET_NOIRQ_SYSTEM_SLEEP_PM_OPS
  ...

8 files changed, 87 insertions, 23 deletions

diff --git a/drivers/soc/fsl/dpio/dpio-driver.c b/drivers/soc/fsl/dpio/dpio-driver.c
index b60b77bfaffa..e58fcc9096e8 100644
--- a/drivers/soc/fsl/dpio/dpio-driver.c
+++ b/drivers/soc/fsl/dpio/dpio-driver.c
@@ -50,13 +50,10 @@ static void unregister_dpio_irq_handlers(struct fsl_mc_device *dpio_dev)
 
 static int register_dpio_irq_handlers(struct fsl_mc_device *dpio_dev, int cpu)
 {
-	struct dpio_priv *priv;
 	int error;
 	struct fsl_mc_device_irq *irq;
 	cpumask_t mask;
 
-	priv = dev_get_drvdata(&dpio_dev->dev);
-
 	irq = dpio_dev->irqs[0];
 	error = devm_request_irq(&dpio_dev->dev,
 				 irq->msi_desc->irq,
diff --git a/drivers/soc/fsl/qbman/Kconfig b/drivers/soc/fsl/qbman/Kconfig
index d570cb5fd381..b0943e541796 100644
--- a/drivers/soc/fsl/qbman/Kconfig
+++ b/drivers/soc/fsl/qbman/Kconfig
@@ -1,6 +1,6 @@
 menuconfig FSL_DPAA
 	bool "QorIQ DPAA1 framework support"
-	depends on (FSL_SOC_BOOKE || ARCH_LAYERSCAPE)
+	depends on ((FSL_SOC_BOOKE || ARCH_LAYERSCAPE) && ARCH_DMA_ADDR_T_64BIT)
 	select GENERIC_ALLOCATOR
 	help
 	  The Freescale Data Path Acceleration Architecture (DPAA) is a set of
diff --git a/drivers/soc/fsl/qbman/bman.c b/drivers/soc/fsl/qbman/bman.c
index f9485cedc648..f84ab596bde8 100644
--- a/drivers/soc/fsl/qbman/bman.c
+++ b/drivers/soc/fsl/qbman/bman.c
@@ -562,11 +562,9 @@ static int bman_create_portal(struct bman_portal *portal,
 		dev_err(c->dev, "request_irq() failed\n");
 		goto fail_irq;
 	}
-	if (c->cpu != -1 && irq_can_set_affinity(c->irq) &&
-	    irq_set_affinity(c->irq, cpumask_of(c->cpu))) {
-		dev_err(c->dev, "irq_set_affinity() failed\n");
+
+	if (dpaa_set_portal_irq_affinity(c->dev, c->irq, c->cpu))
 		goto fail_affinity;
-	}
 
 	/* Need RCR to be empty before continuing */
 	ret = bm_rcr_get_fill(p);
diff --git a/drivers/soc/fsl/qbman/bman_portal.c b/drivers/soc/fsl/qbman/bman_portal.c
index 2f71f7df3465..2c95cf59f3e7 100644
--- a/drivers/soc/fsl/qbman/bman_portal.c
+++ b/drivers/soc/fsl/qbman/bman_portal.c
@@ -65,7 +65,9 @@ static int bman_offline_cpu(unsigned int cpu)
 	if (!pcfg)
 		return 0;
 
-	irq_set_affinity(pcfg->irq, cpumask_of(0));
+	/* use any other online CPU */
+	cpu = cpumask_any_but(cpu_online_mask, cpu);
+	irq_set_affinity(pcfg->irq, cpumask_of(cpu));
 	return 0;
 }
 
@@ -91,7 +93,15 @@ static int bman_portal_probe(struct platform_device *pdev)
 	struct device_node *node = dev->of_node;
 	struct bm_portal_config *pcfg;
 	struct resource *addr_phys[2];
-	int irq, cpu;
+	int irq, cpu, err;
+
+	err = bman_is_probed();
+	if (!err)
+		return -EPROBE_DEFER;
+	if (err < 0) {
+		dev_err(&pdev->dev, "failing probe due to bman probe error\n");
+		return -ENODEV;
+	}
 
 	pcfg = devm_kmalloc(dev, sizeof(*pcfg), GFP_KERNEL);
 	if (!pcfg)
diff --git a/drivers/soc/fsl/qbman/dpaa_sys.h b/drivers/soc/fsl/qbman/dpaa_sys.h
index 9f379000da85..ae8afa552b1e 100644
--- a/drivers/soc/fsl/qbman/dpaa_sys.h
+++ b/drivers/soc/fsl/qbman/dpaa_sys.h
@@ -111,4 +111,24 @@ int qbman_init_private_mem(struct device *dev, int idx, dma_addr_t *addr,
 #define QBMAN_MEMREMAP_ATTR	MEMREMAP_WC
 #endif
 
+static inline int dpaa_set_portal_irq_affinity(struct device *dev,
+					       int irq, int cpu)
+{
+	int ret = 0;
+
+	if (!irq_can_set_affinity(irq)) {
+		dev_err(dev, "unable to set IRQ affinity\n");
+		return -EINVAL;
+	}
+
+	if (cpu == -1 || !cpu_online(cpu))
+		cpu = cpumask_any(cpu_online_mask);
+
+	ret = irq_set_affinity(irq, cpumask_of(cpu));
+	if (ret)
+		dev_err(dev, "irq_set_affinity() on CPU %d failed\n", cpu);
+
+	return ret;
+}
+
 #endif	/* __DPAA_SYS_H */
diff --git a/drivers/soc/fsl/qbman/qman.c b/drivers/soc/fsl/qbman/qman.c
index 8cc015183043..5ce24718c2fd 100644
--- a/drivers/soc/fsl/qbman/qman.c
+++ b/drivers/soc/fsl/qbman/qman.c
@@ -850,12 +850,24 @@ static inline void qm_mr_set_ithresh(struct qm_portal *portal, u8 ithresh)
 
 static inline int qm_mc_init(struct qm_portal *portal)
 {
+	u8 rr0, rr1;
 	struct qm_mc *mc = &portal->mc;
 
 	mc->cr = portal->addr.ce + QM_CL_CR;
 	mc->rr = portal->addr.ce + QM_CL_RR0;
-	mc->rridx = (mc->cr->_ncw_verb & QM_MCC_VERB_VBIT)
-		    ? 0 : 1;
+	/*
+	 * The expected valid bit polarity for the next CR command is 0
+	 * if RR1 contains a valid response, and is 1 if RR0 contains a
+	 * valid response. If both RR contain all 0, this indicates either
+	 * that no command has been executed since reset (in which case the
+	 * expected valid bit polarity is 1)
+	 */
+	rr0 = mc->rr->verb;
+	rr1 = (mc->rr+1)->verb;
+	if ((rr0 == 0 && rr1 == 0) || rr0 != 0)
+		mc->rridx = 1;
+	else
+		mc->rridx = 0;
 	mc->vbit = mc->rridx ? QM_MCC_VERB_VBIT : 0;
 #ifdef CONFIG_FSL_DPAA_CHECKING
 	mc->state = qman_mc_idle;
@@ -1000,6 +1012,37 @@ static inline void put_affine_portal(void)
 
 static struct workqueue_struct *qm_portal_wq;
 
+void qman_dqrr_set_ithresh(struct qman_portal *portal, u8 ithresh)
+{
+	if (!portal)
+		return;
+
+	qm_dqrr_set_ithresh(&portal->p, ithresh);
+	portal->p.dqrr.ithresh = ithresh;
+}
+EXPORT_SYMBOL(qman_dqrr_set_ithresh);
+
+void qman_dqrr_get_ithresh(struct qman_portal *portal, u8 *ithresh)
+{
+	if (portal && ithresh)
+		*ithresh = portal->p.dqrr.ithresh;
+}
+EXPORT_SYMBOL(qman_dqrr_get_ithresh);
+
+void qman_portal_get_iperiod(struct qman_portal *portal, u32 *iperiod)
+{
+	if (portal && iperiod)
+		*iperiod = qm_in(&portal->p, QM_REG_ITPR);
+}
+EXPORT_SYMBOL(qman_portal_get_iperiod);
+
+void qman_portal_set_iperiod(struct qman_portal *portal, u32 iperiod)
+{
+	if (portal)
+		qm_out(&portal->p, QM_REG_ITPR, iperiod);
+}
+EXPORT_SYMBOL(qman_portal_set_iperiod);
+
 int qman_wq_alloc(void)
 {
 	qm_portal_wq = alloc_workqueue("qman_portal_wq", 0, 1);
@@ -1210,11 +1253,9 @@ static int qman_create_portal(struct qman_portal *portal,
 		dev_err(c->dev, "request_irq() failed\n");
 		goto fail_irq;
 	}
-	if (c->cpu != -1 && irq_can_set_affinity(c->irq) &&
-	    irq_set_affinity(c->irq, cpumask_of(c->cpu))) {
-		dev_err(c->dev, "irq_set_affinity() failed\n");
+
+	if (dpaa_set_portal_irq_affinity(c->dev, c->irq, c->cpu))
 		goto fail_affinity;
-	}
 
 	/* Need EQCR to be empty before continuing */
 	isdr &= ~QM_PIRQ_EQCI;
diff --git a/drivers/soc/fsl/qbman/qman_portal.c b/drivers/soc/fsl/qbman/qman_portal.c
index 3e9391d117c5..661c9b234d32 100644
--- a/drivers/soc/fsl/qbman/qman_portal.c
+++ b/drivers/soc/fsl/qbman/qman_portal.c
@@ -195,8 +195,10 @@ static int qman_offline_cpu(unsigned int cpu)
 	if (p) {
 		pcfg = qman_get_qm_portal_config(p);
 		if (pcfg) {
-			irq_set_affinity(pcfg->irq, cpumask_of(0));
-			qman_portal_update_sdest(pcfg, 0);
+			/* select any other online CPU */
+			cpu = cpumask_any_but(cpu_online_mask, cpu);
+			irq_set_affinity(pcfg->irq, cpumask_of(cpu));
+			qman_portal_update_sdest(pcfg, cpu);
 		}
 	}
 	return 0;
diff --git a/drivers/soc/fsl/qe/qe.c b/drivers/soc/fsl/qe/qe.c
index 2ef6fc6487c1..612d9c551be5 100644
--- a/drivers/soc/fsl/qe/qe.c
+++ b/drivers/soc/fsl/qe/qe.c
@@ -588,11 +588,7 @@ struct qe_firmware_info *qe_get_firmware_info(void)
 	}
 
 	/* Find the 'firmware' child node */
-	for_each_child_of_node(qe, fw) {
-		if (strcmp(fw->name, "firmware") == 0)
-			break;
-	}
-
+	fw = of_get_child_by_name(qe, "firmware");
 	of_node_put(qe);
 
 	/* Did we find the 'firmware' node? */