dt-bindings: interconnect: qcom-bwmon: Add Maili cpu-bwmon compatiblegrafted

Add the Qualcomm Maili SoC compatible string for the CPU bandwidth
monitor (BWMONv4). This falls back to the sdm845-bwmon compatible,
consistent with the existing pattern used by other recent SoCs such as
sm8750 and kaanapali.

Signed-off-by: Yijie Yang <yijie.yang@oss.qualcomm.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Jingyi Wang <jingyi.wang@oss.qualcomm.com>
Link: https://patch.msgid.link/20260811-bwmon-v2-1-80f7f150ab9e@oss.qualcomm.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>

1 files changed, 143 insertions, 0 deletions

diff --git a/drivers/video/fbdev/controlfb.h b/drivers/video/fbdev/controlfb.h
new file mode 100644
index 000000000..e779cca51
--- /dev/null
+++ b/drivers/video/fbdev/controlfb.h
@@ -0,0 +1,143 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * controlfb_hw.h: Constants of all sorts for controlfb
+ *
+ * Copyright (C) 1998 Daniel Jacobowitz <dan@debian.org>
+ *
+ * Based on an awful lot of code, including:
+ *
+ * control.c: Console support for PowerMac "control" display adaptor.
+ * Copyright (C) 1996 Paul Mackerras.
+ *
+ * The so far unpublished platinumfb.c
+ * Copyright (C) 1998 Jon Howell
+ */
+
+/*
+ * Structure of the registers for the RADACAL colormap device.
+ */
+struct cmap_regs {
+	unsigned char addr;	/* index for both cmap and misc registers */
+	char pad1[15];
+	unsigned char crsr;	/* cursor palette */
+	char pad2[15];
+	unsigned char dat;	/* RADACAL misc register data */
+	char pad3[15];
+	unsigned char lut;	/* cmap data */
+	char pad4[15];
+};
+
+/*
+ * Structure of the registers for the "control" display adaptor.
+ */
+#define PAD(x)	char x[12]
+
+struct preg {			/* padded register */
+	unsigned r;
+	char pad[12];
+};
+
+struct control_regs {
+	struct preg vcount;	/* vertical counter */
+	/* Vertical parameters are in units of 1/2 scan line */
+	struct preg vswin;	/* between vsblank and vssync */
+	struct preg vsblank;	/* vert start blank */
+	struct preg veblank;	/* vert end blank (display start) */
+	struct preg vewin;	/* between vesync and veblank */
+	struct preg vesync;	/* vert end sync */
+	struct preg vssync;	/* vert start sync */
+	struct preg vperiod;	/* vert period */
+	struct preg piped;	/* pipe delay hardware cursor */
+	/* Horizontal params are in units of 2 pixels */
+	struct preg hperiod;	/* horiz period - 2 */
+	struct preg hsblank;	/* horiz start blank */
+	struct preg heblank;	/* horiz end blank */
+	struct preg hesync;	/* horiz end sync */
+	struct preg hssync;	/* horiz start sync */
+	struct preg heq;	/* half horiz sync len */
+	struct preg hlfln;	/* half horiz period */
+	struct preg hserr;	/* horiz period - horiz sync len */
+	struct preg cnttst;
+	struct preg ctrl;	/* display control */
+	struct preg start_addr;	/* start address: 5 lsbs zero */
+	struct preg pitch;	/* addrs diff between scan lines */
+	struct preg mon_sense;	/* monitor sense bits */
+	struct preg vram_attr;	/* enable vram banks */
+	struct preg mode;
+	struct preg rfrcnt;	/* refresh count */
+	struct preg intr_ena;	/* interrupt enable */
+	struct preg intr_stat;	/* interrupt status */
+	struct preg res[5];
+};
+
+struct control_regints {
+	/* Vertical parameters are in units of 1/2 scan line */
+	unsigned vswin;	/* between vsblank and vssync */
+	unsigned vsblank;	/* vert start blank */
+	unsigned veblank;	/* vert end blank (display start) */
+	unsigned vewin;	/* between vesync and veblank */
+	unsigned vesync;	/* vert end sync */
+	unsigned vssync;	/* vert start sync */
+	unsigned vperiod;	/* vert period */
+	unsigned piped;		/* pipe delay hardware cursor */
+	/* Horizontal params are in units of 2 pixels */
+	/* Except, apparently, for hres > 1024 (or == 1280?) */
+	unsigned hperiod;	/* horiz period - 2 */
+	unsigned hsblank;	/* horiz start blank */
+	unsigned heblank;	/* horiz end blank */
+	unsigned hesync;	/* horiz end sync */
+	unsigned hssync;	/* horiz start sync */
+	unsigned heq;		/* half horiz sync len */
+	unsigned hlfln;		/* half horiz period */
+	unsigned hserr;		/* horiz period - horiz sync len */
+};
+	
+/*
+ * Dot clock rate is
+ * 3.9064MHz * 2**clock_params[2] * clock_params[1] / clock_params[0].
+ */
+struct control_regvals {
+	unsigned regs[16];		/* for vswin .. hserr */
+	unsigned char mode;
+	unsigned char radacal_ctrl;
+	unsigned char clock_params[3];
+};
+
+#define CTRLFB_OFF 16	/* position of pixel 0 in frame buffer */
+
+
+/*
+ * Best cmode supported by control
+ */
+struct max_cmodes {
+	int m[2];	/* 0: 2MB vram, 1: 4MB vram */
+};
+
+/*
+ * Video modes supported by macmodes.c
+ */
+static struct max_cmodes control_mac_modes[] = {
+	{{-1,-1}},	/* 512x384, 60Hz interlaced (NTSC) */
+	{{-1,-1}},	/* 512x384, 60Hz */
+	{{-1,-1}},	/* 640x480, 50Hz interlaced (PAL) */
+	{{-1,-1}},	/* 640x480, 60Hz interlaced (NTSC) */
+	{{ 2, 2}},	/* 640x480, 60Hz (VGA) */
+	{{ 2, 2}},	/* 640x480, 67Hz */
+	{{-1,-1}},	/* 640x870, 75Hz (portrait) */
+	{{-1,-1}},	/* 768x576, 50Hz (PAL full frame) */
+	{{ 2, 2}},	/* 800x600, 56Hz */
+	{{ 2, 2}},	/* 800x600, 60Hz */
+	{{ 2, 2}},	/* 800x600, 72Hz */
+	{{ 2, 2}},	/* 800x600, 75Hz */
+	{{ 1, 2}},	/* 832x624, 75Hz */
+	{{ 1, 2}},	/* 1024x768, 60Hz */
+	{{ 1, 2}},	/* 1024x768, 70Hz (or 72Hz?) */
+	{{ 1, 2}},	/* 1024x768, 75Hz (VESA) */
+	{{ 1, 2}},	/* 1024x768, 75Hz */
+	{{ 1, 2}},	/* 1152x870, 75Hz */
+	{{ 0, 1}},	/* 1280x960, 75Hz */
+	{{ 0, 1}},	/* 1280x1024, 75Hz */
+	{{ 1, 2}},	/* 1152x768, 60Hz */
+	{{ 0, 1}},	/* 1600x1024, 60Hz */
+};
+