Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediagrafted

Pull media updates from Mauro Carvalho Chehab:

 - v4l2-core: added ISP statistics support and per-block validation

 - v4l2-core: Allow unknown HDR10 white point and luminance

 - New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor

 - New codec: Milos: VPU v2.0 codec support

 - isp driver: gained support for Dreamchip RPPX1 ISP framework

 - vsp1 driver: gained support for RZ/T2H and RZ/N2H

 - Novalake driver: gained CVS support for new NVL hardware

 - dvb-core: fix feed leak on failed DMX_ADD_PID

 - several driver fixes, cleanups and minor improvements

* tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits)
  media: ipu-bridge: check all DMI entries when overriding sensor rotation
  media: v4l2-async: avoid deleting unlinked ASC entry on link error
  media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement
  media: intel/ipu6: fix async notifier cleanup leak on parse error
  media: staging/ipu7: fix async notifier UAF on probe error path
  media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path
  media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem()
  media: rcar-isp: Fix VSPX reference leaks
  media: rcar-isp: Release ISPCORE resources
  media: i2c: imx415: Release runtime PM reference on VBLANK error
  media: i2c: imx415: Return test pattern write errors
  media: renesas: vsp1: Declare index variables in for loop statement
  media: renesas: vsp1: Make reset control optional to support platforms without a reset line
  media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs
  media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs
  media: nxp: imx8-isi: Add additional 32-bit RGB format support
  media: nxp: imx8-isi: Add 16-bit raw Bayer format support
  media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams
  media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks
  media: nxp: imx8-isi: Correct color map between V4L2 and ISI
  ...

1 files changed, 204 insertions, 0 deletions

diff --git a/drivers/input/serio/maceps2.c b/drivers/input/serio/maceps2.c
new file mode 100644
index 000000000..fb41e7f5a
--- /dev/null
+++ b/drivers/input/serio/maceps2.c
@@ -0,0 +1,204 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * SGI O2 MACE PS2 controller driver for linux
+ *
+ * Copyright (C) 2002 Vivien Chappelier
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/serio.h>
+#include <linux/errno.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/err.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/ip32/mace.h>
+#include <asm/ip32/ip32_ints.h>
+
+MODULE_AUTHOR("Vivien Chappelier <vivien.chappelier@linux-mips.org");
+MODULE_DESCRIPTION("SGI O2 MACE PS2 controller driver");
+MODULE_LICENSE("GPL");
+
+#define MACE_PS2_TIMEOUT 10000 /* in 50us unit */
+
+#define PS2_STATUS_CLOCK_SIGNAL  BIT(0) /* external clock signal */
+#define PS2_STATUS_CLOCK_INHIBIT BIT(1) /* clken output signal */
+#define PS2_STATUS_TX_INPROGRESS BIT(2) /* transmission in progress */
+#define PS2_STATUS_TX_EMPTY      BIT(3) /* empty transmit buffer */
+#define PS2_STATUS_RX_FULL       BIT(4) /* full receive buffer */
+#define PS2_STATUS_RX_INPROGRESS BIT(5) /* reception in progress */
+#define PS2_STATUS_ERROR_PARITY  BIT(6) /* parity error */
+#define PS2_STATUS_ERROR_FRAMING BIT(7) /* framing error */
+
+#define PS2_CONTROL_TX_CLOCK_DISABLE BIT(0) /* inhibit clock signal after TX */
+#define PS2_CONTROL_TX_ENABLE        BIT(1) /* transmit enable */
+#define PS2_CONTROL_TX_INT_ENABLE    BIT(2) /* enable transmit interrupt */
+#define PS2_CONTROL_RX_INT_ENABLE    BIT(3) /* enable receive interrupt */
+#define PS2_CONTROL_RX_CLOCK_ENABLE  BIT(4) /* pause reception if set to 0 */
+#define PS2_CONTROL_RESET            BIT(5) /* reset */
+
+struct maceps2_data {
+	struct mace_ps2port *port;
+	int irq;
+};
+
+static struct maceps2_data port_data[2];
+static struct serio *maceps2_port[2];
+static struct platform_device *maceps2_device;
+
+static int maceps2_write(struct serio *dev, unsigned char val)
+{
+	struct mace_ps2port *port = ((struct maceps2_data *)dev->port_data)->port;
+	unsigned int timeout = MACE_PS2_TIMEOUT;
+
+	do {
+		if (port->status & PS2_STATUS_TX_EMPTY) {
+			port->tx = val;
+			return 0;
+		}
+		udelay(50);
+	} while (timeout--);
+
+	return -1;
+}
+
+static irqreturn_t maceps2_interrupt(int irq, void *dev_id)
+{
+	struct serio *dev = dev_id;
+	struct mace_ps2port *port = ((struct maceps2_data *)dev->port_data)->port;
+	unsigned long byte;
+
+	if (port->status & PS2_STATUS_RX_FULL) {
+		byte = port->rx;
+		serio_interrupt(dev, byte & 0xff, 0);
+        }
+
+	return IRQ_HANDLED;
+}
+
+static int maceps2_open(struct serio *dev)
+{
+	struct maceps2_data *data = (struct maceps2_data *)dev->port_data;
+
+	if (request_irq(data->irq, maceps2_interrupt, 0, "PS2 port", dev)) {
+		printk(KERN_ERR "Could not allocate PS/2 IRQ\n");
+		return -EBUSY;
+	}
+
+	/* Reset port */
+	data->port->control = PS2_CONTROL_TX_CLOCK_DISABLE | PS2_CONTROL_RESET;
+	udelay(100);
+
+        /* Enable interrupts */
+	data->port->control = PS2_CONTROL_RX_CLOCK_ENABLE |
+			      PS2_CONTROL_TX_ENABLE |
+			      PS2_CONTROL_RX_INT_ENABLE;
+
+	return 0;
+}
+
+static void maceps2_close(struct serio *dev)
+{
+	struct maceps2_data *data = (struct maceps2_data *)dev->port_data;
+
+	data->port->control = PS2_CONTROL_TX_CLOCK_DISABLE | PS2_CONTROL_RESET;
+	udelay(100);
+	free_irq(data->irq, dev);
+}
+
+
+static struct serio *maceps2_allocate_port(int idx)
+{
+	struct serio *serio;
+
+	serio = kzalloc_obj(*serio);
+	if (serio) {
+		serio->id.type		= SERIO_8042;
+		serio->write		= maceps2_write;
+		serio->open		= maceps2_open;
+		serio->close		= maceps2_close;
+		snprintf(serio->name, sizeof(serio->name), "MACE PS/2 port%d", idx);
+		snprintf(serio->phys, sizeof(serio->phys), "mace/serio%d", idx);
+		serio->port_data	= &port_data[idx];
+		serio->dev.parent	= &maceps2_device->dev;
+	}
+
+	return serio;
+}
+
+static int maceps2_probe(struct platform_device *dev)
+{
+	maceps2_port[0] = maceps2_allocate_port(0);
+	maceps2_port[1] = maceps2_allocate_port(1);
+	if (!maceps2_port[0] || !maceps2_port[1]) {
+		kfree(maceps2_port[0]);
+		kfree(maceps2_port[1]);
+		return -ENOMEM;
+	}
+
+	serio_register_port(maceps2_port[0]);
+	serio_register_port(maceps2_port[1]);
+
+	return 0;
+}
+
+static void maceps2_remove(struct platform_device *dev)
+{
+	serio_unregister_port(maceps2_port[0]);
+	serio_unregister_port(maceps2_port[1]);
+}
+
+static struct platform_driver maceps2_driver = {
+	.driver		= {
+		.name	= "maceps2",
+	},
+	.probe		= maceps2_probe,
+	.remove		= maceps2_remove,
+};
+
+static int __init maceps2_init(void)
+{
+	int error;
+
+	error = platform_driver_register(&maceps2_driver);
+	if (error)
+		return error;
+
+	maceps2_device = platform_device_alloc("maceps2", -1);
+	if (!maceps2_device) {
+		error = -ENOMEM;
+		goto err_unregister_driver;
+	}
+
+	port_data[0].port = &mace->perif.ps2.keyb;
+	port_data[0].irq  = MACEISA_KEYB_IRQ;
+	port_data[1].port = &mace->perif.ps2.mouse;
+	port_data[1].irq  = MACEISA_MOUSE_IRQ;
+
+	error = platform_device_add(maceps2_device);
+	if (error)
+		goto err_free_device;
+
+	return 0;
+
+ err_free_device:
+	platform_device_put(maceps2_device);
+ err_unregister_driver:
+	platform_driver_unregister(&maceps2_driver);
+	return error;
+}
+
+static void __exit maceps2_exit(void)
+{
+	platform_device_unregister(maceps2_device);
+	platform_driver_unregister(&maceps2_driver);
+}
+
+module_init(maceps2_init);
+module_exit(maceps2_exit);