brcm2708: add kernel 4.14 support

Patch generation process:
- rebase rpi/rpi-4.14.y on v4.14.89 from linux-stable
- git format-patch v4.14.89

Patches skipped during rebase:
- lan78xx: Read MAC address from DT if present
- lan78xx: Enable LEDs and auto-negotiation
- Revert "softirq: Let ksoftirqd do its job"
- sc16is7xx: Fix for multi-channel stall
- lan78xx: Ignore DT MAC address if already valid
- lan78xx: Simple patch to prevent some crashes
- tcp_write_queue_purge clears all the SKBs in the write queue
- Revert "lan78xx: Simple patch to prevent some crashes"
- lan78xx: Connect phy early
- Arm: mm: ftrace: Only set text back to ro after kernel has been marked ro
- Revert "Revert "softirq: Let ksoftirqd do its job""
- ASoC: cs4265: SOC_SINGLE register value error fix
- Revert "ASoC: cs4265: SOC_SINGLE register value error fix"
- Revert "net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends"
- Revert "Revert "net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends""

Patches dropped after rebase:
- net: Add non-mainline source for rtl8192cu wlan
- net: Fix rtl8192cu build errors on other platforms
- brcm: adds support for BCM43341 wifi
- brcmfmac: Mute expected startup 'errors'
- ARM64: Fix build break for RTL8187/RTL8192CU wifi
- ARM64: Enable RTL8187/RTL8192CU wifi in build config
- This is the driver for Sony CXD2880 DVB-T2/T tuner + demodulator
- brcmfmac: add CLM download support
- brcmfmac: request_firmware_direct is quieter
- Sets the BCDC priority to constant 0
- brcmfmac: Disable ARP offloading when promiscuous
- brcmfmac: Avoid possible out-of-bounds read
- brcmfmac: Delete redundant length check
- net: rtl8192cu: Normalize indentation
- net: rtl8192cu: Fix implicit fallthrough warnings
- Revert "Sets the BCDC priority to constant 0"
- media: cxd2880: Bump to match 4.18.y version
- media: cxd2880-spi: Bump to match 4.18.y version
- Revert "mm: alloc_contig: re-allow CMA to compact FS pages"
- Revert "Revert "mm: alloc_contig: re-allow CMA to compact FS pages""
- cxd2880: CXD2880_SPI_DRV should select DVB_CXD2880 with
  MEDIA_SUBDRV_AUTOSELECT
- 950-0421-HID-hid-bigbenff-driver-for-BigBen-Interactive-PS3OF.patch
- 950-0453-Add-hid-bigbenff-to-list-of-have_special_driver-for-.patch

Make I2C built-in instead of modular as in upstream defconfig; also the
easiest way to get MFD_ARIZONA enabled, which is required by
kmod-sound-soc-rpi-cirrus.
Add missing compatible strings from
4.9/960-add-rasbperrypi-compatible.patch, using upstream names for
compute modules.
Add extra patch to enable the LEDs on lan78xx.

Compile-tested: bcm2708, bcm2709, bcm2710 (with CONFIG_ALL_KMODS=y)
Runtime-tested: bcm2708, bcm2710

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>

1 files changed, 354 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.14/950-0297-Cleanup-of-bcm2708_fb-file-to-kernel-coding-standard.patch b/target/linux/brcm2708/patches-4.14/950-0297-Cleanup-of-bcm2708_fb-file-to-kernel-coding-standard.patch
new file mode 100644
index 0000000000..c0007282f6
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.14/950-0297-Cleanup-of-bcm2708_fb-file-to-kernel-coding-standard.patch
@@ -0,0 +1,354 @@
+From dc1c33574c4dcf24192cb219ea6caaf2c7804eef Mon Sep 17 00:00:00 2001
+From: James Hughes <james.hughes@raspberrypi.org>
+Date: Thu, 10 May 2018 11:34:38 +0100
+Subject: [PATCH 297/454] Cleanup of bcm2708_fb file to kernel coding standards
+
+Some minor change to function - remove a use of
+in_atomic, plus replacing various debug messages
+that manually specify the function name with
+("%s",.__func__)
+
+Signed-off-by: James Hughes <james.hughes@raspberrypi.org>
+---
+ drivers/video/fbdev/bcm2708_fb.c | 136 ++++++++++++++++++-------------
+ 1 file changed, 81 insertions(+), 55 deletions(-)
+
+--- a/drivers/video/fbdev/bcm2708_fb.c
++++ b/drivers/video/fbdev/bcm2708_fb.c
+@@ -41,9 +41,10 @@
+ #define MODULE_NAME "bcm2708_fb"
+ 
+ #ifdef BCM2708_FB_DEBUG
+-#define print_debug(fmt,...) pr_debug("%s:%s:%d: "fmt, MODULE_NAME, __func__, __LINE__, ##__VA_ARGS__)
++#define print_debug(fmt, ...) pr_debug("%s:%s:%d: "fmt, \
++			MODULE_NAME, __func__, __LINE__, ##__VA_ARGS__)
+ #else
+-#define print_debug(fmt,...)
++#define print_debug(fmt, ...)
+ #endif
+ 
+ /* This is limited to 16 characters when displayed by X startup */
+@@ -51,10 +52,10 @@ static const char *bcm2708_name = "BCM27
+ 
+ #define DRIVER_NAME "bcm2708_fb"
+ 
+-static int fbwidth = 800;  /* module parameter */
+-static int fbheight = 480; /* module parameter */
+-static int fbdepth = 32;   /* module parameter */
+-static int fbswap = 0;     /* module parameter */
++static int fbwidth = 800;	/* module parameter */
++static int fbheight = 480;	/* module parameter */
++static int fbdepth = 32;	/* module parameter */
++static int fbswap;		/* module parameter */
+ 
+ static u32 dma_busy_wait_threshold = 1<<15;
+ module_param(dma_busy_wait_threshold, int, 0644);
+@@ -221,11 +222,13 @@ static int bcm2708_fb_check_var(struct f
+ 				struct fb_info *info)
+ {
+ 	/* info input, var output */
+-	print_debug("bcm2708_fb_check_var info(%p) %dx%d (%dx%d), %d, %d\n", info,
++	print_debug("%s(%p) %dx%d (%dx%d), %d, %d\n",
++		__func__,
++		info,
+ 		info->var.xres, info->var.yres, info->var.xres_virtual,
+ 		info->var.yres_virtual, (int)info->screen_size,
+ 		info->var.bits_per_pixel);
+-	print_debug("bcm2708_fb_check_var var(%p) %dx%d (%dx%d), %d\n", var,
++	print_debug("%s(%p) %dx%d (%dx%d), %d\n", __func__, var,
+ 		var->xres, var->yres, var->xres_virtual, var->yres_virtual,
+ 		var->bits_per_pixel);
+ 
+@@ -233,7 +236,7 @@ static int bcm2708_fb_check_var(struct f
+ 		var->bits_per_pixel = 16;
+ 
+ 	if (bcm2708_fb_set_bitfields(var) != 0) {
+-		pr_err("bcm2708_fb_check_var: invalid bits_per_pixel %d\n",
++		pr_err("%s: invalid bits_per_pixel %d\n", __func__,
+ 		     var->bits_per_pixel);
+ 		return -EINVAL;
+ 	}
+@@ -245,9 +248,8 @@ static int bcm2708_fb_check_var(struct f
+ 	if (var->yres_virtual == -1) {
+ 		var->yres_virtual = 480;
+ 
+-		pr_err
+-		    ("bcm2708_fb_check_var: virtual resolution set to maximum of %dx%d\n",
+-		     var->xres_virtual, var->yres_virtual);
++		pr_err("%s: virtual resolution set to maximum of %dx%d\n",
++		     __func__, var->xres_virtual, var->yres_virtual);
+ 	}
+ 	if (var->yres_virtual < var->yres)
+ 		var->yres_virtual = var->yres;
+@@ -291,7 +293,7 @@ static int bcm2708_fb_set_par(struct fb_
+ 	};
+ 	int ret;
+ 
+-	print_debug("bcm2708_fb_set_par info(%p) %dx%d (%dx%d), %d, %d\n", info,
++	print_debug("%s(%p) %dx%d (%dx%d), %d, %d\n", __func__, info,
+ 		info->var.xres, info->var.yres, info->var.xres_virtual,
+ 		info->var.yres_virtual, (int)info->screen_size,
+ 		info->var.bits_per_pixel);
+@@ -326,11 +328,12 @@ static int bcm2708_fb_set_par(struct fb_
+ 		return -ENOMEM;
+ 	}
+ 
+-	print_debug
+-	    ("BCM2708FB: start = %p,%p width=%d, height=%d, bpp=%d, pitch=%d size=%d\n",
+-	     (void *)fb->fb.screen_base, (void *)fb->fb_bus_address,
+-	     fbinfo.xres, fbinfo.yres, fbinfo.bpp,
+-	     fbinfo.pitch, (int)fb->fb.screen_size);
++	print_debug(
++	  "%s: start = %p,%p width=%d, height=%d, bpp=%d, pitch=%d size=%d\n",
++	  __func__,
++	  (void *)fb->fb.screen_base, (void *)fb->fb_bus_address,
++	  fbinfo.xres, fbinfo.yres, fbinfo.bpp,
++	  fbinfo.pitch, (int)fb->fb.screen_size);
+ 
+ 	return 0;
+ }
+@@ -349,7 +352,6 @@ static int bcm2708_fb_setcolreg(unsigned
+ {
+ 	struct bcm2708_fb *fb = to_bcm2708(info);
+ 
+-	/*print_debug("BCM2708FB: setcolreg %d:(%02x,%02x,%02x,%02x) %x\n", regno, red, green, blue, transp, fb->fb.fix.visual);*/
+ 	if (fb->fb.var.bits_per_pixel <= 8) {
+ 		if (regno < 256) {
+ 			/* blue [23:16], green [15:8], red [7:0] */
+@@ -357,8 +359,12 @@ static int bcm2708_fb_setcolreg(unsigned
+ 					      ((green >> 8) & 0xff) << 8 |
+ 					      ((blue  >> 8) & 0xff) << 16;
+ 		}
+-		/* Hack: we need to tell GPU the palette has changed, but currently bcm2708_fb_set_par takes noticable time when called for every (256) colour */
+-		/* So just call it for what looks like the last colour in a list for now. */
++		/* Hack: we need to tell GPU the palette has changed, but
++		 * currently bcm2708_fb_set_par takes noticeable time when
++		 * called for every (256) colour
++		 * So just call it for what looks like the last colour in a
++		 * list for now.
++		 */
+ 		if (regno == 15 || regno == 255) {
+ 			struct packet {
+ 				u32 offset;
+@@ -372,19 +378,23 @@ static int bcm2708_fb_setcolreg(unsigned
+ 				return -ENOMEM;
+ 			packet->offset = 0;
+ 			packet->length = regno + 1;
+-			memcpy(packet->cmap, fb->gpu_cmap, sizeof(packet->cmap));
+-			ret = rpi_firmware_property(fb->fw, RPI_FIRMWARE_FRAMEBUFFER_SET_PALETTE,
+-						    packet, (2 + packet->length) * sizeof(u32));
++			memcpy(packet->cmap, fb->gpu_cmap,
++				sizeof(packet->cmap));
++			ret = rpi_firmware_property(fb->fw,
++					RPI_FIRMWARE_FRAMEBUFFER_SET_PALETTE,
++					packet,
++					(2 + packet->length) * sizeof(u32));
+ 			if (ret || packet->offset)
+-				dev_err(info->device, "Failed to set palette (%d,%u)\n",
++				dev_err(info->device,
++					"Failed to set palette (%d,%u)\n",
+ 					ret, packet->offset);
+ 			kfree(packet);
+ 		}
+-        } else if (regno < 16) {
++	} else if (regno < 16) {
+ 		fb->cmap[regno] = convert_bitfield(transp, &fb->fb.var.transp) |
+-		    convert_bitfield(blue, &fb->fb.var.blue) |
+-		    convert_bitfield(green, &fb->fb.var.green) |
+-		    convert_bitfield(red, &fb->fb.var.red);
++		convert_bitfield(blue, &fb->fb.var.blue) |
++		convert_bitfield(green, &fb->fb.var.green) |
++		convert_bitfield(red, &fb->fb.var.red);
+ 	}
+ 	return regno > 255;
+ }
+@@ -412,24 +422,28 @@ static int bcm2708_fb_blank(int blank_mo
+ 	ret = rpi_firmware_property(fb->fw, RPI_FIRMWARE_FRAMEBUFFER_BLANK,
+ 				    &value, sizeof(value));
+ 	if (ret)
+-		dev_err(info->device, "bcm2708_fb_blank(%d) failed: %d\n",
++		dev_err(info->device, "%s(%d) failed: %d\n", __func__,
+ 			blank_mode, ret);
+ 
+ 	return ret;
+ }
+ 
+-static int bcm2708_fb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
++static int bcm2708_fb_pan_display(struct fb_var_screeninfo *var,
++				  struct fb_info *info)
+ {
+ 	s32 result;
++
+ 	info->var.xoffset = var->xoffset;
+ 	info->var.yoffset = var->yoffset;
+ 	result = bcm2708_fb_set_par(info);
+ 	if (result != 0)
+-		pr_err("bcm2708_fb_pan_display(%d,%d) returns=%d\n", var->xoffset, var->yoffset, result);
++		pr_err("%s(%d,%d) returns=%d\n", __func__,
++			var->xoffset, var->yoffset, result);
+ 	return result;
+ }
+ 
+-static void dma_memcpy(struct bcm2708_fb *fb, dma_addr_t dst, dma_addr_t src, int size)
++static void dma_memcpy(struct bcm2708_fb *fb, dma_addr_t dst, dma_addr_t src,
++		       int size)
+ {
+ 	int burst_size = (fb->dma_chan == 0) ? 8 : 2;
+ 	struct bcm2708_dma_cb *cb = fb->cb_base;
+@@ -450,6 +464,7 @@ static void dma_memcpy(struct bcm2708_fb
+ 		bcm_dma_wait_idle(fb->dma_chan_base);
+ 	} else {
+ 		void __iomem *dma_chan = fb->dma_chan_base;
++
+ 		cb->info |= BCM2708_DMA_INT_EN;
+ 		bcm_dma_start(fb->dma_chan_base, fb->cb_handle);
+ 		while (bcm_dma_is_busy(dma_chan)) {
+@@ -462,8 +477,10 @@ static void dma_memcpy(struct bcm2708_fb
+ 	fb->stats.dma_copies++;
+ }
+ 
+-#define INTALIAS_NORMAL(x) ((x)&~0xc0000000) // address with no aliases
+-#define INTALIAS_L1L2_NONALLOCATING(x) (((x)&~0xc0000000)|0x80000000) // cache coherent but non-allocating in L1 and L2
++/* address with no aliases */
++#define INTALIAS_NORMAL(x) ((x)&~0xc0000000)
++/* cache coherent but non-allocating in L1 and L2 */
++#define INTALIAS_L1L2_NONALLOCATING(x) (((x)&~0xc0000000)|0x80000000)
+ 
+ static long vc_mem_copy(struct bcm2708_fb *fb, unsigned long arg)
+ {
+@@ -475,8 +492,7 @@ static long vc_mem_copy(struct bcm2708_f
+ 	size_t offset;
+ 
+ 	/* restrict this to root user */
+-	if (!uid_eq(current_euid(), GLOBAL_ROOT_UID))
+-	{
++	if (!uid_eq(current_euid(), GLOBAL_ROOT_UID)) {
+ 		rc = -EFAULT;
+ 		goto out;
+ 	}
+@@ -492,12 +508,16 @@ static long vc_mem_copy(struct bcm2708_f
+ 	}
+ 
+ 	if (fb->gpu.base == 0 || fb->gpu.length == 0) {
+-		pr_err("[%s]: Unable to determine gpu memory (%x,%x)\n", __func__, fb->gpu.base, fb->gpu.length);
++		pr_err("[%s]: Unable to determine gpu memory (%x,%x)\n",
++			__func__, fb->gpu.base, fb->gpu.length);
+ 		return -EFAULT;
+ 	}
+ 
+-	if (INTALIAS_NORMAL(ioparam.src) < fb->gpu.base || INTALIAS_NORMAL(ioparam.src) >= fb->gpu.base + fb->gpu.length) {
+-		pr_err("[%s]: Invalid memory access %x (%x-%x)", __func__, INTALIAS_NORMAL(ioparam.src), fb->gpu.base, fb->gpu.base + fb->gpu.length);
++	if (INTALIAS_NORMAL(ioparam.src) < fb->gpu.base ||
++		INTALIAS_NORMAL(ioparam.src) >= fb->gpu.base + fb->gpu.length) {
++		pr_err("[%s]: Invalid memory access %x (%x-%x)", __func__,
++			INTALIAS_NORMAL(ioparam.src), fb->gpu.base,
++			fb->gpu.base + fb->gpu.length);
+ 		return -EFAULT;
+ 	}
+ 
+@@ -515,7 +535,9 @@ static long vc_mem_copy(struct bcm2708_f
+ 		size_t s = min(size, remaining);
+ 		unsigned char *p = (unsigned char *)ioparam.src + offset;
+ 		unsigned char *q = (unsigned char *)ioparam.dst + offset;
+-		dma_memcpy(fb, bus_addr, INTALIAS_L1L2_NONALLOCATING((dma_addr_t)p), size);
++
++		dma_memcpy(fb, bus_addr,
++			   INTALIAS_L1L2_NONALLOCATING((dma_addr_t)p), size);
+ 		if (copy_to_user(q, buf, s) != 0) {
+ 			pr_err("[%s]: failed to copy-to-user\n",
+ 					__func__);
+@@ -525,11 +547,13 @@ static long vc_mem_copy(struct bcm2708_f
+ 	}
+ out:
+ 	if (buf)
+-		dma_free_coherent(fb->fb.device, PAGE_ALIGN(size), buf, bus_addr);
++		dma_free_coherent(fb->fb.device, PAGE_ALIGN(size), buf,
++				  bus_addr);
+ 	return rc;
+ }
+ 
+-static int bcm2708_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
++static int bcm2708_ioctl(struct fb_info *info, unsigned int cmd,
++			 unsigned long arg)
+ {
+ 	struct bcm2708_fb *fb = to_bcm2708(info);
+ 	u32 dummy = 0;
+@@ -593,13 +617,13 @@ static void bcm2708_fb_copyarea(struct f
+ 	struct bcm2708_fb *fb = to_bcm2708(info);
+ 	struct bcm2708_dma_cb *cb = fb->cb_base;
+ 	int bytes_per_pixel = (info->var.bits_per_pixel + 7) >> 3;
++
+ 	/* Channel 0 supports larger bursts and is a bit faster */
+ 	int burst_size = (fb->dma_chan == 0) ? 8 : 2;
+ 	int pixels = region->width * region->height;
+ 
+ 	/* Fallback to cfb_copyarea() if we don't like something */
+-	if (in_atomic() ||
+-	    bytes_per_pixel > 4 ||
++	if (bytes_per_pixel > 4 ||
+ 	    info->var.xres * info->var.yres > 1920 * 1200 ||
+ 	    region->width <= 0 || region->width > info->var.xres ||
+ 	    region->height <= 0 || region->height > info->var.yres ||
+@@ -663,6 +687,7 @@ static void bcm2708_fb_copyarea(struct f
+ 	} else {
+ 		/* A single dma control block is enough. */
+ 		int sy, dy, stride;
++
+ 		if (region->dy <= region->sy) {
+ 			/* processing from top to bottom */
+ 			dy = region->dy;
+@@ -694,6 +719,7 @@ static void bcm2708_fb_copyarea(struct f
+ 		bcm_dma_wait_idle(fb->dma_chan_base);
+ 	} else {
+ 		void __iomem *dma_chan = fb->dma_chan_base;
++
+ 		cb->info |= BCM2708_DMA_INT_EN;
+ 		bcm_dma_start(fb->dma_chan_base, fb->cb_handle);
+ 		while (bcm_dma_is_busy(dma_chan)) {
+@@ -791,8 +817,8 @@ static int bcm2708_fb_register(struct bc
+ 	if (ret)
+ 		return ret;
+ 
+-	print_debug("BCM2708FB: registering framebuffer (%dx%d@%d) (%d)\n", fbwidth,
+-		fbheight, fbdepth, fbswap);
++	print_debug("BCM2708FB: registering framebuffer (%dx%d@%d) (%d)\n",
++		fbwidth, fbheight, fbdepth, fbswap);
+ 
+ 	ret = register_framebuffer(&fb->fb);
+ 	print_debug("BCM2708FB: register framebuffer (%d)\n", ret);
+@@ -813,19 +839,17 @@ static int bcm2708_fb_probe(struct platf
+ 
+ 	fw_np = of_parse_phandle(dev->dev.of_node, "firmware", 0);
+ /* Remove comment when booting without Device Tree is no longer supported
+-	if (!fw_np) {
+-		dev_err(&dev->dev, "Missing firmware node\n");
+-		return -ENOENT;
+-	}
+-*/
++ *	if (!fw_np) {
++ *		dev_err(&dev->dev, "Missing firmware node\n");
++ *		return -ENOENT;
++ *	}
++ */
+ 	fw = rpi_firmware_get(fw_np);
+ 	if (!fw)
+ 		return -EPROBE_DEFER;
+ 
+ 	fb = kzalloc(sizeof(struct bcm2708_fb), GFP_KERNEL);
+ 	if (!fb) {
+-		dev_err(&dev->dev,
+-			"could not allocate new bcm2708_fb struct\n");
+ 		ret = -ENOMEM;
+ 		goto free_region;
+ 	}
+@@ -866,7 +890,9 @@ static int bcm2708_fb_probe(struct platf
+ 	fb->dev = dev;
+ 	fb->fb.device = &dev->dev;
+ 
+-	// failure here isn't fatal, but we'll fail in vc_mem_copy if fb->gpu is not valid
++	/* failure here isn't fatal, but we'll fail in vc_mem_copy if
++	 * fb->gpu is not valid
++	 */
+ 	rpi_firmware_property(fb->fw,
+ 				    RPI_FIRMWARE_GET_VC_MEMORY,
+ 				    &fb->gpu, sizeof(fb->gpu));