media: platform: re-structure TI drivers

The ti-vpe/ sub-directory does not only contain the VPE-specific things.
It also contains the CAL driver, which is a completely different
subsystem. This is also not a good place to add new drivers for other TI
platforms since they will all get mixed up.

Separate the VPE and CAL parts into different sub-directories and rename
the ti-vpe/ sub-directory to ti/. This is now the place where new TI
platform drivers can be added.

[mchehab: rebased to apple on the top of media/platform/Kconfig series]
Signed-off-by: Pratyush Yadav <p.yadav@ti.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

1 files changed, 0 insertions, 306 deletions

diff --git a/drivers/media/platform/ti-vpe/sc.c b/drivers/media/platform/ti-vpe/sc.c
deleted file mode 100644
index 0202d278523f..000000000000
--- a/drivers/media/platform/ti-vpe/sc.c
+++ /dev/null
@@ -1,306 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Scaler library
- *
- * Copyright (c) 2013 Texas Instruments Inc.
- *
- * David Griego, <dagriego@biglakesoftware.com>
- * Dale Farnsworth, <dale@farnsworth.org>
- * Archit Taneja, <archit@ti.com>
- */
-
-#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-
-#include "sc.h"
-#include "sc_coeff.h"
-
-void sc_dump_regs(struct sc_data *sc)
-{
-	struct device *dev = &sc->pdev->dev;
-
-#define DUMPREG(r) dev_dbg(dev, "%-35s %08x\n", #r, \
-	ioread32(sc->base + CFG_##r))
-
-	dev_dbg(dev, "SC Registers @ %pa:\n", &sc->res->start);
-
-	DUMPREG(SC0);
-	DUMPREG(SC1);
-	DUMPREG(SC2);
-	DUMPREG(SC3);
-	DUMPREG(SC4);
-	DUMPREG(SC5);
-	DUMPREG(SC6);
-	DUMPREG(SC8);
-	DUMPREG(SC9);
-	DUMPREG(SC10);
-	DUMPREG(SC11);
-	DUMPREG(SC12);
-	DUMPREG(SC13);
-	DUMPREG(SC17);
-	DUMPREG(SC18);
-	DUMPREG(SC19);
-	DUMPREG(SC20);
-	DUMPREG(SC21);
-	DUMPREG(SC22);
-	DUMPREG(SC23);
-	DUMPREG(SC24);
-	DUMPREG(SC25);
-
-#undef DUMPREG
-}
-EXPORT_SYMBOL(sc_dump_regs);
-
-/*
- * set the horizontal scaler coefficients according to the ratio of output to
- * input widths, after accounting for up to two levels of decimation
- */
-void sc_set_hs_coeffs(struct sc_data *sc, void *addr, unsigned int src_w,
-		unsigned int dst_w)
-{
-	int sixteenths;
-	int idx;
-	int i, j;
-	u16 *coeff_h = addr;
-	const u16 *cp;
-
-	if (dst_w > src_w) {
-		idx = HS_UP_SCALE;
-	} else {
-		if ((dst_w << 1) < src_w)
-			dst_w <<= 1;	/* first level decimation */
-		if ((dst_w << 1) < src_w)
-			dst_w <<= 1;	/* second level decimation */
-
-		if (dst_w == src_w) {
-			idx = HS_LE_16_16_SCALE;
-		} else {
-			sixteenths = (dst_w << 4) / src_w;
-			if (sixteenths < 8)
-				sixteenths = 8;
-			idx = HS_LT_9_16_SCALE + sixteenths - 8;
-		}
-	}
-
-	cp = scaler_hs_coeffs[idx];
-
-	for (i = 0; i < SC_NUM_PHASES * 2; i++) {
-		for (j = 0; j < SC_H_NUM_TAPS; j++)
-			*coeff_h++ = *cp++;
-		/*
-		 * for each phase, the scaler expects space for 8 coefficients
-		 * in it's memory. For the horizontal scaler, we copy the first
-		 * 7 coefficients and skip the last slot to move to the next
-		 * row to hold coefficients for the next phase
-		 */
-		coeff_h += SC_NUM_TAPS_MEM_ALIGN - SC_H_NUM_TAPS;
-	}
-
-	sc->load_coeff_h = true;
-}
-EXPORT_SYMBOL(sc_set_hs_coeffs);
-
-/*
- * set the vertical scaler coefficients according to the ratio of output to
- * input heights
- */
-void sc_set_vs_coeffs(struct sc_data *sc, void *addr, unsigned int src_h,
-		unsigned int dst_h)
-{
-	int sixteenths;
-	int idx;
-	int i, j;
-	u16 *coeff_v = addr;
-	const u16 *cp;
-
-	if (dst_h > src_h) {
-		idx = VS_UP_SCALE;
-	} else if (dst_h == src_h) {
-		idx = VS_1_TO_1_SCALE;
-	} else {
-		sixteenths = (dst_h << 4) / src_h;
-		if (sixteenths < 8)
-			sixteenths = 8;
-		idx = VS_LT_9_16_SCALE + sixteenths - 8;
-	}
-
-	cp = scaler_vs_coeffs[idx];
-
-	for (i = 0; i < SC_NUM_PHASES * 2; i++) {
-		for (j = 0; j < SC_V_NUM_TAPS; j++)
-			*coeff_v++ = *cp++;
-		/*
-		 * for the vertical scaler, we copy the first 5 coefficients and
-		 * skip the last 3 slots to move to the next row to hold
-		 * coefficients for the next phase
-		 */
-		coeff_v += SC_NUM_TAPS_MEM_ALIGN - SC_V_NUM_TAPS;
-	}
-
-	sc->load_coeff_v = true;
-}
-EXPORT_SYMBOL(sc_set_vs_coeffs);
-
-void sc_config_scaler(struct sc_data *sc, u32 *sc_reg0, u32 *sc_reg8,
-		u32 *sc_reg17, unsigned int src_w, unsigned int src_h,
-		unsigned int dst_w, unsigned int dst_h)
-{
-	struct device *dev = &sc->pdev->dev;
-	u32 val;
-	int dcm_x, dcm_shift;
-	bool use_rav;
-	unsigned long lltmp;
-	u32 lin_acc_inc, lin_acc_inc_u;
-	u32 col_acc_offset;
-	u16 factor = 0;
-	int row_acc_init_rav = 0, row_acc_init_rav_b = 0;
-	u32 row_acc_inc = 0, row_acc_offset = 0, row_acc_offset_b = 0;
-	/*
-	 * location of SC register in payload memory with respect to the first
-	 * register in the mmr address data block
-	 */
-	u32 *sc_reg9 = sc_reg8 + 1;
-	u32 *sc_reg12 = sc_reg8 + 4;
-	u32 *sc_reg13 = sc_reg8 + 5;
-	u32 *sc_reg24 = sc_reg17 + 7;
-
-	val = sc_reg0[0];
-
-	/* clear all the features(they may get enabled elsewhere later) */
-	val &= ~(CFG_SELFGEN_FID | CFG_TRIM | CFG_ENABLE_SIN2_VER_INTP |
-		CFG_INTERLACE_I | CFG_DCM_4X | CFG_DCM_2X | CFG_AUTO_HS |
-		CFG_ENABLE_EV | CFG_USE_RAV | CFG_INVT_FID | CFG_SC_BYPASS |
-		CFG_INTERLACE_O | CFG_Y_PK_EN | CFG_HP_BYPASS | CFG_LINEAR);
-
-	if (src_w == dst_w && src_h == dst_h) {
-		val |= CFG_SC_BYPASS;
-		sc_reg0[0] = val;
-		return;
-	}
-
-	/* we only support linear scaling for now */
-	val |= CFG_LINEAR;
-
-	/* configure horizontal scaler */
-
-	/* enable 2X or 4X decimation */
-	dcm_x = src_w / dst_w;
-	if (dcm_x > 4) {
-		val |= CFG_DCM_4X;
-		dcm_shift = 2;
-	} else if (dcm_x > 2) {
-		val |= CFG_DCM_2X;
-		dcm_shift = 1;
-	} else {
-		dcm_shift = 0;
-	}
-
-	lltmp = dst_w - 1;
-	lin_acc_inc = div64_u64(((u64)(src_w >> dcm_shift) - 1) << 24, lltmp);
-	lin_acc_inc_u = 0;
-	col_acc_offset = 0;
-
-	dev_dbg(dev, "hs config: src_w = %d, dst_w = %d, decimation = %s, lin_acc_inc = %08x\n",
-		src_w, dst_w, dcm_shift == 2 ? "4x" :
-		(dcm_shift == 1 ? "2x" : "none"), lin_acc_inc);
-
-	/* configure vertical scaler */
-
-	/* use RAV for vertical scaler if vertical downscaling is > 4x */
-	if (dst_h < (src_h >> 2)) {
-		use_rav = true;
-		val |= CFG_USE_RAV;
-	} else {
-		use_rav = false;
-	}
-
-	if (use_rav) {
-		/* use RAV */
-		factor = (u16) ((dst_h << 10) / src_h);
-
-		row_acc_init_rav = factor + ((1 + factor) >> 1);
-		if (row_acc_init_rav >= 1024)
-			row_acc_init_rav -= 1024;
-
-		row_acc_init_rav_b = row_acc_init_rav +
-				(1 + (row_acc_init_rav >> 1)) -
-				(1024 >> 1);
-
-		if (row_acc_init_rav_b < 0) {
-			row_acc_init_rav_b += row_acc_init_rav;
-			row_acc_init_rav *= 2;
-		}
-
-		dev_dbg(dev, "vs config(RAV): src_h = %d, dst_h = %d, factor = %d, acc_init = %08x, acc_init_b = %08x\n",
-			src_h, dst_h, factor, row_acc_init_rav,
-			row_acc_init_rav_b);
-	} else {
-		/* use polyphase */
-		row_acc_inc = ((src_h - 1) << 16) / (dst_h - 1);
-		row_acc_offset = 0;
-		row_acc_offset_b = 0;
-
-		dev_dbg(dev, "vs config(POLY): src_h = %d, dst_h = %d,row_acc_inc = %08x\n",
-			src_h, dst_h, row_acc_inc);
-	}
-
-
-	sc_reg0[0] = val;
-	sc_reg0[1] = row_acc_inc;
-	sc_reg0[2] = row_acc_offset;
-	sc_reg0[3] = row_acc_offset_b;
-
-	sc_reg0[4] = ((lin_acc_inc_u & CFG_LIN_ACC_INC_U_MASK) <<
-			CFG_LIN_ACC_INC_U_SHIFT) | (dst_w << CFG_TAR_W_SHIFT) |
-			(dst_h << CFG_TAR_H_SHIFT);
-
-	sc_reg0[5] = (src_w << CFG_SRC_W_SHIFT) | (src_h << CFG_SRC_H_SHIFT);
-
-	sc_reg0[6] = (row_acc_init_rav_b << CFG_ROW_ACC_INIT_RAV_B_SHIFT) |
-		(row_acc_init_rav << CFG_ROW_ACC_INIT_RAV_SHIFT);
-
-	*sc_reg9 = lin_acc_inc;
-
-	*sc_reg12 = col_acc_offset << CFG_COL_ACC_OFFSET_SHIFT;
-
-	*sc_reg13 = factor;
-
-	*sc_reg24 = (src_w << CFG_ORG_W_SHIFT) | (src_h << CFG_ORG_H_SHIFT);
-}
-EXPORT_SYMBOL(sc_config_scaler);
-
-struct sc_data *sc_create(struct platform_device *pdev, const char *res_name)
-{
-	struct sc_data *sc;
-
-	dev_dbg(&pdev->dev, "sc_create\n");
-
-	sc = devm_kzalloc(&pdev->dev, sizeof(*sc), GFP_KERNEL);
-	if (!sc) {
-		dev_err(&pdev->dev, "couldn't alloc sc_data\n");
-		return ERR_PTR(-ENOMEM);
-	}
-
-	sc->pdev = pdev;
-
-	sc->res = platform_get_resource_byname(pdev, IORESOURCE_MEM, res_name);
-	if (!sc->res) {
-		dev_err(&pdev->dev, "missing '%s' platform resources data\n",
-			res_name);
-		return ERR_PTR(-ENODEV);
-	}
-
-	sc->base = devm_ioremap_resource(&pdev->dev, sc->res);
-	if (IS_ERR(sc->base))
-		return ERR_CAST(sc->base);
-
-	return sc;
-}
-EXPORT_SYMBOL(sc_create);
-
-MODULE_DESCRIPTION("TI VIP/VPE Scaler");
-MODULE_AUTHOR("Texas Instruments Inc.");
-MODULE_LICENSE("GPL v2");