kernel: bump 5.15 to 5.15.56

Manually rebased:
  bcm27xx/patches-5.15/950-0470-sound-usb-add-device-quirks-for-A4Tech-FHD-1080p-web.patch

Remove upstreamed:
  bcm27xx/patches-5.15/950-0060-tty-amba-pl011-Add-un-throttle-support.patch[1]

All other patches automatically rebased.

1. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.56&id=2db3b95166f72e6481a79b82b1d6f94f4b18fcc1

Build system: x86_64
Build-tested: bcm2711/RPi4B, mt7622/RT3200
Run-tested: bcm2711/RPi4B, mt7622/RT3200

Signed-off-by: John Audia <[email protected]>

include/kernel-5.15

@@ -1,2 +1,2 @@
-LINUX_VERSION-5.15 = .55
-LINUX_KERNEL_HASH-5.15.55 = 1ef6bd508b6c3af3bef2d5b337e4477254dba284c79e329aa38f9763ae3bfdcc
+LINUX_VERSION-5.15 = .56
+LINUX_KERNEL_HASH-5.15.56 = e9a6bb3437f1497b1c74841ebf70d5b96f915d6ac767b5ba3d8d820dd89b8223

target/linux/bcm27xx/patches-5.15/950-0035-cgroup-Disable-cgroup-memory-by-default.patch

@@ -17,7 +17,7 @@ Signed-off-by: Phil Elwell <[email protected]>
 
 --- a/kernel/cgroup/cgroup.c
 +++ b/kernel/cgroup/cgroup.c
-@@ -5824,6 +5824,9 @@ int __init cgroup_init_early(void)
+@@ -5833,6 +5833,9 @@ int __init cgroup_init_early(void)
  	return 0;
  }
  
@@ -27,7 +27,7 @@ Signed-off-by: Phil Elwell <[email protected]>
  /**
   * cgroup_init - cgroup initialization
   *
-@@ -5862,6 +5865,12 @@ int __init cgroup_init(void)
+@@ -5871,6 +5874,12 @@ int __init cgroup_init(void)
  
  	mutex_unlock(&cgroup_mutex);
  
@@ -40,7 +40,7 @@ Signed-off-by: Phil Elwell <[email protected]>
  	for_each_subsys(ss, ssid) {
  		if (ss->early_init) {
  			struct cgroup_subsys_state *css =
-@@ -6446,6 +6455,10 @@ static int __init cgroup_disable(char *s
+@@ -6455,6 +6464,10 @@ static int __init cgroup_disable(char *s
  			    strcmp(token, ss->legacy_name))
  				continue;
  
@@ -51,7 +51,7 @@ Signed-off-by: Phil Elwell <[email protected]>
  			static_branch_disable(cgroup_subsys_enabled_key[i]);
  			pr_info("Disabling %s control group subsystem\n",
  				ss->name);
-@@ -6464,6 +6477,31 @@ static int __init cgroup_disable(char *s
+@@ -6473,6 +6486,31 @@ static int __init cgroup_disable(char *s
  }
  __setup("cgroup_disable=", cgroup_disable);
  

target/linux/bcm27xx/patches-5.15/950-0056-amba_pl011-Don-t-use-DT-aliases-for-numbering.patch

@@ -14,7 +14,7 @@ use the same logic.
 
 --- a/drivers/tty/serial/amba-pl011.c
 +++ b/drivers/tty/serial/amba-pl011.c
-@@ -2725,7 +2725,12 @@ static int pl011_setup_port(struct devic
+@@ -2744,7 +2744,12 @@ static int pl011_setup_port(struct devic
  	if (IS_ERR(base))
  		return PTR_ERR(base);
  

target/linux/bcm27xx/patches-5.15/950-0057-amba_pl011-Round-input-clock-up.patch

@@ -26,7 +26,7 @@ Signed-off-by: Phil Elwell <[email protected]>
 
 --- a/drivers/tty/serial/amba-pl011.c
 +++ b/drivers/tty/serial/amba-pl011.c
-@@ -1718,6 +1718,23 @@ static void pl011_put_poll_char(struct u
+@@ -1727,6 +1727,23 @@ static void pl011_put_poll_char(struct u
  
  #endif /* CONFIG_CONSOLE_POLL */
  
@@ -50,7 +50,7 @@ Signed-off-by: Phil Elwell <[email protected]>
  static int pl011_hwinit(struct uart_port *port)
  {
  	struct uart_amba_port *uap =
-@@ -1734,7 +1751,7 @@ static int pl011_hwinit(struct uart_port
+@@ -1743,7 +1760,7 @@ static int pl011_hwinit(struct uart_port
  	if (retval)
  		return retval;
  
@@ -59,7 +59,7 @@ Signed-off-by: Phil Elwell <[email protected]>
  
  	/* Clear pending error and receive interrupts */
  	pl011_write(UART011_OEIS | UART011_BEIS | UART011_PEIS |
-@@ -2421,7 +2438,7 @@ static int pl011_console_setup(struct co
+@@ -2440,7 +2457,7 @@ static int pl011_console_setup(struct co
  			plat->init();
  	}
  
@@ -68,7 +68,7 @@ Signed-off-by: Phil Elwell <[email protected]>
  
  	if (uap->vendor->fixed_options) {
  		baud = uap->fixed_baud;
-@@ -2638,6 +2655,7 @@ static struct uart_driver amba_reg = {
+@@ -2657,6 +2674,7 @@ static struct uart_driver amba_reg = {
  	.cons			= AMBA_CONSOLE,
  };
  
@@ -76,7 +76,7 @@ Signed-off-by: Phil Elwell <[email protected]>
  static int pl011_probe_dt_alias(int index, struct device *dev)
  {
  	struct device_node *np;
-@@ -2669,6 +2687,7 @@ static int pl011_probe_dt_alias(int inde
+@@ -2688,6 +2706,7 @@ static int pl011_probe_dt_alias(int inde
  
  	return ret;
  }

target/linux/bcm27xx/patches-5.15/950-0058-amba_pl011-Insert-mb-for-correct-FIFO-handling.patch

@@ -17,7 +17,7 @@ Signed-off-by: Phil Elwell <[email protected]>
 
 --- a/drivers/tty/serial/amba-pl011.c
 +++ b/drivers/tty/serial/amba-pl011.c
-@@ -1423,6 +1423,7 @@ static bool pl011_tx_char(struct uart_am
+@@ -1432,6 +1432,7 @@ static bool pl011_tx_char(struct uart_am
  		return false; /* unable to transmit character */
  
  	pl011_write(c, uap, REG_DR);

target/linux/bcm27xx/patches-5.15/950-0059-amba_pl011-Add-cts-event-workaround-DT-property.patch

@@ -36,7 +36,7 @@ Signed-off-by: Phil Elwell <[email protected]>
    - reg
 --- a/drivers/tty/serial/amba-pl011.c
 +++ b/drivers/tty/serial/amba-pl011.c
-@@ -2816,6 +2816,11 @@ static int pl011_probe(struct amba_devic
+@@ -2835,6 +2835,11 @@ static int pl011_probe(struct amba_devic
  	if (IS_ERR(uap->clk))
  		return PTR_ERR(uap->clk);
  

target/linux/bcm27xx/patches-5.15/950-0060-tty-amba-pl011-Add-un-throttle-support.patch

@@ -1,61 +0,0 @@
-From 48cb6ac7067b412c56a0a6aca43f5c964dfb7dec Mon Sep 17 00:00:00 2001
-From: Phil Elwell <[email protected]>
-Date: Fri, 24 Jan 2020 11:38:28 +0000
-Subject: [PATCH] tty: amba-pl011: Add un/throttle support
-
-The PL011 driver lacks throttle and unthrottle methods. As a result,
-sending more data to the Pi than it can immediately sink while CRTSCTS
-is enabled causes a NULL pointer to be followed.
-
-Add a throttle handler that disables the RX interrupts, and an
-unthrottle handler that reenables them.
-
-Signed-off-by: Phil Elwell <[email protected]>
----
- drivers/tty/serial/amba-pl011.c | 28 ++++++++++++++++++++++++++++
- 1 file changed, 28 insertions(+)
-
---- a/drivers/tty/serial/amba-pl011.c
-+++ b/drivers/tty/serial/amba-pl011.c
-@@ -1360,6 +1360,32 @@ static void pl011_start_tx(struct uart_p
- 		pl011_start_tx_pio(uap);
- }
- 
-+static void pl011_throttle(struct uart_port *port)
-+{
-+	struct uart_amba_port *uap =
-+	    container_of(port, struct uart_amba_port, port);
-+	unsigned long flags;
-+
-+	spin_lock_irqsave(&uap->port.lock, flags);
-+	uap->im &= ~(UART011_RTIM | UART011_RXIM);
-+	pl011_write(uap->im, uap, REG_IMSC);
-+	spin_unlock_irqrestore(&uap->port.lock, flags);
-+}
-+
-+static void pl011_unthrottle(struct uart_port *port)
-+{
-+	struct uart_amba_port *uap =
-+	    container_of(port, struct uart_amba_port, port);
-+	unsigned long flags;
-+
-+	spin_lock_irqsave(&uap->port.lock, flags);
-+	uap->im |= UART011_RTIM;
-+	if (!pl011_dma_rx_running(uap))
-+	    uap->im |= UART011_RXIM;
-+	pl011_write(uap->im, uap, REG_IMSC);
-+	spin_unlock_irqrestore(&uap->port.lock, flags);
-+}
-+
- static void pl011_stop_rx(struct uart_port *port)
- {
- 	struct uart_amba_port *uap =
-@@ -2263,6 +2289,8 @@ static const struct uart_ops amba_pl011_
- 	.stop_tx	= pl011_stop_tx,
- 	.start_tx	= pl011_start_tx,
- 	.stop_rx	= pl011_stop_rx,
-+	.throttle	= pl011_throttle,
-+	.unthrottle	= pl011_unthrottle,
- 	.enable_ms	= pl011_enable_ms,
- 	.break_ctl	= pl011_break_ctl,
- 	.startup	= pl011_startup,

target/linux/bcm27xx/patches-5.15/950-0061-tty-amba-pl011-Avoid-rare-write-when-full-error.patch

@@ -29,7 +29,7 @@ Signed-off-by: Phil Elwell <[email protected]>
 
 --- a/drivers/tty/serial/amba-pl011.c
 +++ b/drivers/tty/serial/amba-pl011.c
-@@ -1510,6 +1510,10 @@ static bool pl011_tx_chars(struct uart_a
+@@ -1493,6 +1493,10 @@ static bool pl011_tx_chars(struct uart_a
  		if (likely(from_irq) && count-- == 0)
  			break;
  

target/linux/bcm27xx/patches-5.15/950-0067-fbdev-add-FBIOCOPYAREA-ioctl.patch

@@ -244,7 +244,7 @@ Signed-off-by: Dave Stevenson <[email protected]>
  static int bcm2708_fb_register(struct bcm2708_fb *fb)
 --- a/drivers/video/fbdev/core/fbmem.c
 +++ b/drivers/video/fbdev/core/fbmem.c
-@@ -1096,6 +1096,30 @@ fb_blank(struct fb_info *info, int blank
+@@ -1097,6 +1097,30 @@ fb_blank(struct fb_info *info, int blank
  }
  EXPORT_SYMBOL(fb_blank);
  
@@ -275,7 +275,7 @@ Signed-off-by: Dave Stevenson <[email protected]>
  static long do_fb_ioctl(struct fb_info *info, unsigned int cmd,
  			unsigned long arg)
  {
-@@ -1104,6 +1128,7 @@ static long do_fb_ioctl(struct fb_info *
+@@ -1105,6 +1129,7 @@ static long do_fb_ioctl(struct fb_info *
  	struct fb_fix_screeninfo fix;
  	struct fb_cmap cmap_from;
  	struct fb_cmap_user cmap;
@@ -283,7 +283,7 @@ Signed-off-by: Dave Stevenson <[email protected]>
  	void __user *argp = (void __user *)arg;
  	long ret = 0;
  
-@@ -1181,6 +1206,15 @@ static long do_fb_ioctl(struct fb_info *
+@@ -1182,6 +1207,15 @@ static long do_fb_ioctl(struct fb_info *
  		unlock_fb_info(info);
  		console_unlock();
  		break;
@@ -299,7 +299,7 @@ Signed-off-by: Dave Stevenson <[email protected]>
  	default:
  		lock_fb_info(info);
  		fb = info->fbops;
-@@ -1320,6 +1354,7 @@ static long fb_compat_ioctl(struct file
+@@ -1321,6 +1355,7 @@ static long fb_compat_ioctl(struct file
  	case FBIOPAN_DISPLAY:
  	case FBIOGET_CON2FBMAP:
  	case FBIOPUT_CON2FBMAP:

target/linux/bcm27xx/patches-5.15/950-0470-sound-usb-add-device-quirks-for-A4Tech-FHD-1080p-web.patch

@@ -16,10 +16,10 @@ Signed-off-by: Jonathan Bell <[email protected]>
 
 --- a/sound/usb/quirks.c
 +++ b/sound/usb/quirks.c
-@@ -1912,6 +1912,8 @@ static const struct usb_audio_quirk_flag
- 		   QUIRK_FLAG_ALIGN_TRANSFER),
- 	DEVICE_FLG(0x1224, 0x2a25, /* Jieli Technology USB PHY 2.0 */
- 		   QUIRK_FLAG_GET_SAMPLE_RATE),
+@@ -1921,6 +1921,8 @@ static const struct usb_audio_quirk_flag
+ 		   QUIRK_FLAG_GENERIC_IMPLICIT_FB),
+ 	DEVICE_FLG(0x2b53, 0x0031, /* Fiero SC-01 (firmware v1.1.0) */
+ 		   QUIRK_FLAG_GENERIC_IMPLICIT_FB),
 +	DEVICE_FLG(0x09da, 0x2695, /* A4Tech FHD 1080p webcam */
 +		   QUIRK_FLAG_DISABLE_AUTOSUSPEND | QUIRK_FLAG_GET_SAMPLE_RATE),
  

target/linux/bcm27xx/patches-5.15/950-0880-Revert-fbdev-Fix-unregistering-of-framebuffers-witho.patch

@@ -11,7 +11,7 @@ This reverts commit 2388f826cdc9af2651991adc0feb79de9bdf2232.
 
 --- a/drivers/video/fbdev/core/fbmem.c
 +++ b/drivers/video/fbdev/core/fbmem.c
-@@ -1628,14 +1628,7 @@ static void do_remove_conflicting_frameb
+@@ -1629,14 +1629,7 @@ static void do_remove_conflicting_frameb
  			 * If it's not a platform device, at least print a warning. A
  			 * fix would add code to remove the device from the system.
  			 */

target/linux/bcm27xx/patches-5.15/950-0881-Revert-fbdev-Hot-unplug-firmware-fb-devices-on-force.patch

@@ -12,7 +12,7 @@ This reverts commit c894ac44786cfed383a6c6b20c1bfb12eb96018a.
 
 --- a/drivers/video/fbdev/core/fbmem.c
 +++ b/drivers/video/fbdev/core/fbmem.c
-@@ -25,7 +25,6 @@
+@@ -26,7 +26,6 @@
  #include <linux/init.h>
  #include <linux/linux_logo.h>
  #include <linux/proc_fs.h>
@@ -20,7 +20,7 @@ This reverts commit c894ac44786cfed383a6c6b20c1bfb12eb96018a.
  #include <linux/seq_file.h>
  #include <linux/console.h>
  #include <linux/kmod.h>
-@@ -1605,36 +1604,18 @@ static void do_remove_conflicting_frameb
+@@ -1606,36 +1605,18 @@ static void do_remove_conflicting_frameb
  	/* check all firmware fbs and kick off if the base addr overlaps */
  	for_each_registered_fb(i) {
  		struct apertures_struct *gen_aper;
@@ -58,7 +58,7 @@ This reverts commit c894ac44786cfed383a6c6b20c1bfb12eb96018a.
  		}
  	}
  }
-@@ -1961,13 +1942,9 @@ EXPORT_SYMBOL(register_framebuffer);
+@@ -1973,13 +1954,9 @@ EXPORT_SYMBOL(register_framebuffer);
  void
  unregister_framebuffer(struct fb_info *fb_info)
  {

target/linux/bcm53xx/patches-5.15/072-next-ARM_dts_BCM53015-add-mr26.patch

@@ -232,7 +232,7 @@ Signed-off-by: Florian Fainelli <[email protected]>
 +};
 --- a/arch/arm/boot/dts/Makefile
 +++ b/arch/arm/boot/dts/Makefile
-@@ -129,6 +129,7 @@ dtb-$(CONFIG_ARCH_BCM_5301X) += \
+@@ -128,6 +128,7 @@ dtb-$(CONFIG_ARCH_BCM_5301X) += \
  	bcm47094-luxul-xwr-3150-v1.dtb \
  	bcm47094-netgear-r8500.dtb \
  	bcm47094-phicomm-k3.dtb \

target/linux/generic/hack-5.15/930-Revert-Revert-Revert-driver-core-Set-fw_devlink-on-b.patch

@@ -19,7 +19,7 @@ Signed-off-by: Rafał Miłecki <[email protected]>
 
 --- a/drivers/base/core.c
 +++ b/drivers/base/core.c
-@@ -1561,7 +1561,7 @@ static void device_links_purge(struct de
+@@ -1562,7 +1562,7 @@ static void device_links_purge(struct de
  #define FW_DEVLINK_FLAGS_RPM		(FW_DEVLINK_FLAGS_ON | \
  					 DL_FLAG_PM_RUNTIME)