media: platform: rename omap3isp/ to ti/omap3isp/

As the end goal is to have platform drivers split by vendor,
rename omap3isp/ to ti/omap3isp/.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

1 files changed, 0 insertions, 355 deletions

diff --git a/drivers/media/platform/omap3isp/ispcsiphy.c b/drivers/media/platform/omap3isp/ispcsiphy.c
deleted file mode 100644
index 6dc7359c5131..000000000000
--- a/drivers/media/platform/omap3isp/ispcsiphy.c
+++ /dev/null
@@ -1,355 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * ispcsiphy.c
- *
- * TI OMAP3 ISP - CSI PHY module
- *
- * Copyright (C) 2010 Nokia Corporation
- * Copyright (C) 2009 Texas Instruments, Inc.
- *
- * Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
- *	     Sakari Ailus <sakari.ailus@iki.fi>
- */
-
-#include <linux/delay.h>
-#include <linux/device.h>
-#include <linux/regmap.h>
-#include <linux/regulator/consumer.h>
-
-#include "isp.h"
-#include "ispreg.h"
-#include "ispcsiphy.h"
-
-static void csiphy_routing_cfg_3630(struct isp_csiphy *phy,
-				    enum isp_interface_type iface,
-				    bool ccp2_strobe)
-{
-	u32 reg;
-	u32 shift, mode;
-
-	regmap_read(phy->isp->syscon, phy->isp->syscon_offset, &reg);
-
-	switch (iface) {
-	default:
-	/* Should not happen in practice, but let's keep the compiler happy. */
-	case ISP_INTERFACE_CCP2B_PHY1:
-		reg &= ~OMAP3630_CONTROL_CAMERA_PHY_CTRL_CSI1_RX_SEL_PHY2;
-		shift = OMAP3630_CONTROL_CAMERA_PHY_CTRL_CAMMODE_PHY1_SHIFT;
-		break;
-	case ISP_INTERFACE_CSI2C_PHY1:
-		shift = OMAP3630_CONTROL_CAMERA_PHY_CTRL_CAMMODE_PHY1_SHIFT;
-		mode = OMAP3630_CONTROL_CAMERA_PHY_CTRL_CAMMODE_DPHY;
-		break;
-	case ISP_INTERFACE_CCP2B_PHY2:
-		reg |= OMAP3630_CONTROL_CAMERA_PHY_CTRL_CSI1_RX_SEL_PHY2;
-		shift = OMAP3630_CONTROL_CAMERA_PHY_CTRL_CAMMODE_PHY2_SHIFT;
-		break;
-	case ISP_INTERFACE_CSI2A_PHY2:
-		shift = OMAP3630_CONTROL_CAMERA_PHY_CTRL_CAMMODE_PHY2_SHIFT;
-		mode = OMAP3630_CONTROL_CAMERA_PHY_CTRL_CAMMODE_DPHY;
-		break;
-	}
-
-	/* Select data/clock or data/strobe mode for CCP2 */
-	if (iface == ISP_INTERFACE_CCP2B_PHY1 ||
-	    iface == ISP_INTERFACE_CCP2B_PHY2) {
-		if (ccp2_strobe)
-			mode = OMAP3630_CONTROL_CAMERA_PHY_CTRL_CAMMODE_CCP2_DATA_STROBE;
-		else
-			mode = OMAP3630_CONTROL_CAMERA_PHY_CTRL_CAMMODE_CCP2_DATA_CLOCK;
-	}
-
-	reg &= ~(OMAP3630_CONTROL_CAMERA_PHY_CTRL_CAMMODE_MASK << shift);
-	reg |= mode << shift;
-
-	regmap_write(phy->isp->syscon, phy->isp->syscon_offset, reg);
-}
-
-static void csiphy_routing_cfg_3430(struct isp_csiphy *phy, u32 iface, bool on,
-				    bool ccp2_strobe)
-{
-	u32 csirxfe = OMAP343X_CONTROL_CSIRXFE_PWRDNZ
-		| OMAP343X_CONTROL_CSIRXFE_RESET;
-
-	/* Only the CCP2B on PHY1 is configurable. */
-	if (iface != ISP_INTERFACE_CCP2B_PHY1)
-		return;
-
-	if (!on) {
-		regmap_write(phy->isp->syscon, phy->isp->syscon_offset, 0);
-		return;
-	}
-
-	if (ccp2_strobe)
-		csirxfe |= OMAP343X_CONTROL_CSIRXFE_SELFORM;
-
-	regmap_write(phy->isp->syscon, phy->isp->syscon_offset, csirxfe);
-}
-
-/*
- * Configure OMAP 3 CSI PHY routing.
- * @phy: relevant phy device
- * @iface: ISP_INTERFACE_*
- * @on: power on or off
- * @ccp2_strobe: false: data/clock, true: data/strobe
- *
- * Note that the underlying routing configuration registers are part of the
- * control (SCM) register space and part of the CORE power domain on both 3430
- * and 3630, so they will not hold their contents in off-mode. This isn't an
- * issue since the MPU power domain is forced on whilst the ISP is in use.
- */
-static void csiphy_routing_cfg(struct isp_csiphy *phy,
-			       enum isp_interface_type iface, bool on,
-			       bool ccp2_strobe)
-{
-	if (phy->isp->phy_type == ISP_PHY_TYPE_3630 && on)
-		return csiphy_routing_cfg_3630(phy, iface, ccp2_strobe);
-	if (phy->isp->phy_type == ISP_PHY_TYPE_3430)
-		return csiphy_routing_cfg_3430(phy, iface, on, ccp2_strobe);
-}
-
-/*
- * csiphy_power_autoswitch_enable
- * @enable: Sets or clears the autoswitch function enable flag.
- */
-static void csiphy_power_autoswitch_enable(struct isp_csiphy *phy, bool enable)
-{
-	isp_reg_clr_set(phy->isp, phy->cfg_regs, ISPCSI2_PHY_CFG,
-			ISPCSI2_PHY_CFG_PWR_AUTO,
-			enable ? ISPCSI2_PHY_CFG_PWR_AUTO : 0);
-}
-
-/*
- * csiphy_set_power
- * @power: Power state to be set.
- *
- * Returns 0 if successful, or -EBUSY if the retry count is exceeded.
- */
-static int csiphy_set_power(struct isp_csiphy *phy, u32 power)
-{
-	u32 reg;
-	u8 retry_count;
-
-	isp_reg_clr_set(phy->isp, phy->cfg_regs, ISPCSI2_PHY_CFG,
-			ISPCSI2_PHY_CFG_PWR_CMD_MASK, power);
-
-	retry_count = 0;
-	do {
-		udelay(50);
-		reg = isp_reg_readl(phy->isp, phy->cfg_regs, ISPCSI2_PHY_CFG) &
-				    ISPCSI2_PHY_CFG_PWR_STATUS_MASK;
-
-		if (reg != power >> 2)
-			retry_count++;
-
-	} while ((reg != power >> 2) && (retry_count < 100));
-
-	if (retry_count == 100) {
-		dev_err(phy->isp->dev, "CSI2 CIO set power failed!\n");
-		return -EBUSY;
-	}
-
-	return 0;
-}
-
-/*
- * TCLK values are OK at their reset values
- */
-#define TCLK_TERM	0
-#define TCLK_MISS	1
-#define TCLK_SETTLE	14
-
-static int omap3isp_csiphy_config(struct isp_csiphy *phy)
-{
-	struct isp_pipeline *pipe = to_isp_pipeline(phy->entity);
-	struct isp_bus_cfg *buscfg = v4l2_subdev_to_bus_cfg(pipe->external);
-	struct isp_csiphy_lanes_cfg *lanes;
-	int csi2_ddrclk_khz;
-	unsigned int num_data_lanes, used_lanes = 0;
-	unsigned int i;
-	u32 reg;
-
-	if (buscfg->interface == ISP_INTERFACE_CCP2B_PHY1
-	    || buscfg->interface == ISP_INTERFACE_CCP2B_PHY2) {
-		lanes = &buscfg->bus.ccp2.lanecfg;
-		num_data_lanes = 1;
-	} else {
-		lanes = &buscfg->bus.csi2.lanecfg;
-		num_data_lanes = buscfg->bus.csi2.num_data_lanes;
-	}
-
-	if (num_data_lanes > phy->num_data_lanes)
-		return -EINVAL;
-
-	/* Clock and data lanes verification */
-	for (i = 0; i < num_data_lanes; i++) {
-		if (lanes->data[i].pol > 1 || lanes->data[i].pos > 3)
-			return -EINVAL;
-
-		if (used_lanes & (1 << lanes->data[i].pos))
-			return -EINVAL;
-
-		used_lanes |= 1 << lanes->data[i].pos;
-	}
-
-	if (lanes->clk.pol > 1 || lanes->clk.pos > 3)
-		return -EINVAL;
-
-	if (lanes->clk.pos == 0 || used_lanes & (1 << lanes->clk.pos))
-		return -EINVAL;
-
-	/*
-	 * The PHY configuration is lost in off mode, that's not an
-	 * issue since the MPU power domain is forced on whilst the
-	 * ISP is in use.
-	 */
-	csiphy_routing_cfg(phy, buscfg->interface, true,
-			   buscfg->bus.ccp2.phy_layer);
-
-	/* DPHY timing configuration */
-	/* CSI-2 is DDR and we only count used lanes. */
-	csi2_ddrclk_khz = pipe->external_rate / 1000
-		/ (2 * hweight32(used_lanes)) * pipe->external_width;
-
-	reg = isp_reg_readl(phy->isp, phy->phy_regs, ISPCSIPHY_REG0);
-
-	reg &= ~(ISPCSIPHY_REG0_THS_TERM_MASK |
-		 ISPCSIPHY_REG0_THS_SETTLE_MASK);
-	/* THS_TERM: Programmed value = ceil(12.5 ns/DDRClk period) - 1. */
-	reg |= (DIV_ROUND_UP(25 * csi2_ddrclk_khz, 2000000) - 1)
-		<< ISPCSIPHY_REG0_THS_TERM_SHIFT;
-	/* THS_SETTLE: Programmed value = ceil(90 ns/DDRClk period) + 3. */
-	reg |= (DIV_ROUND_UP(90 * csi2_ddrclk_khz, 1000000) + 3)
-		<< ISPCSIPHY_REG0_THS_SETTLE_SHIFT;
-
-	isp_reg_writel(phy->isp, reg, phy->phy_regs, ISPCSIPHY_REG0);
-
-	reg = isp_reg_readl(phy->isp, phy->phy_regs, ISPCSIPHY_REG1);
-
-	reg &= ~(ISPCSIPHY_REG1_TCLK_TERM_MASK |
-		 ISPCSIPHY_REG1_TCLK_MISS_MASK |
-		 ISPCSIPHY_REG1_TCLK_SETTLE_MASK);
-	reg |= TCLK_TERM << ISPCSIPHY_REG1_TCLK_TERM_SHIFT;
-	reg |= TCLK_MISS << ISPCSIPHY_REG1_TCLK_MISS_SHIFT;
-	reg |= TCLK_SETTLE << ISPCSIPHY_REG1_TCLK_SETTLE_SHIFT;
-
-	isp_reg_writel(phy->isp, reg, phy->phy_regs, ISPCSIPHY_REG1);
-
-	/* DPHY lane configuration */
-	reg = isp_reg_readl(phy->isp, phy->cfg_regs, ISPCSI2_PHY_CFG);
-
-	for (i = 0; i < num_data_lanes; i++) {
-		reg &= ~(ISPCSI2_PHY_CFG_DATA_POL_MASK(i + 1) |
-			 ISPCSI2_PHY_CFG_DATA_POSITION_MASK(i + 1));
-		reg |= (lanes->data[i].pol <<
-			ISPCSI2_PHY_CFG_DATA_POL_SHIFT(i + 1));
-		reg |= (lanes->data[i].pos <<
-			ISPCSI2_PHY_CFG_DATA_POSITION_SHIFT(i + 1));
-	}
-
-	reg &= ~(ISPCSI2_PHY_CFG_CLOCK_POL_MASK |
-		 ISPCSI2_PHY_CFG_CLOCK_POSITION_MASK);
-	reg |= lanes->clk.pol << ISPCSI2_PHY_CFG_CLOCK_POL_SHIFT;
-	reg |= lanes->clk.pos << ISPCSI2_PHY_CFG_CLOCK_POSITION_SHIFT;
-
-	isp_reg_writel(phy->isp, reg, phy->cfg_regs, ISPCSI2_PHY_CFG);
-
-	return 0;
-}
-
-int omap3isp_csiphy_acquire(struct isp_csiphy *phy, struct media_entity *entity)
-{
-	int rval;
-
-	if (phy->vdd == NULL) {
-		dev_err(phy->isp->dev,
-			"Power regulator for CSI PHY not available\n");
-		return -ENODEV;
-	}
-
-	mutex_lock(&phy->mutex);
-
-	rval = regulator_enable(phy->vdd);
-	if (rval < 0)
-		goto done;
-
-	rval = omap3isp_csi2_reset(phy->csi2);
-	if (rval < 0)
-		goto done;
-
-	phy->entity = entity;
-
-	rval = omap3isp_csiphy_config(phy);
-	if (rval < 0)
-		goto done;
-
-	if (phy->isp->revision == ISP_REVISION_15_0) {
-		rval = csiphy_set_power(phy, ISPCSI2_PHY_CFG_PWR_CMD_ON);
-		if (rval) {
-			regulator_disable(phy->vdd);
-			goto done;
-		}
-
-		csiphy_power_autoswitch_enable(phy, true);
-	}
-done:
-	if (rval < 0)
-		phy->entity = NULL;
-
-	mutex_unlock(&phy->mutex);
-	return rval;
-}
-
-void omap3isp_csiphy_release(struct isp_csiphy *phy)
-{
-	mutex_lock(&phy->mutex);
-	if (phy->entity) {
-		struct isp_pipeline *pipe = to_isp_pipeline(phy->entity);
-		struct isp_bus_cfg *buscfg =
-			v4l2_subdev_to_bus_cfg(pipe->external);
-
-		csiphy_routing_cfg(phy, buscfg->interface, false,
-				   buscfg->bus.ccp2.phy_layer);
-		if (phy->isp->revision == ISP_REVISION_15_0) {
-			csiphy_power_autoswitch_enable(phy, false);
-			csiphy_set_power(phy, ISPCSI2_PHY_CFG_PWR_CMD_OFF);
-		}
-		regulator_disable(phy->vdd);
-		phy->entity = NULL;
-	}
-	mutex_unlock(&phy->mutex);
-}
-
-/*
- * omap3isp_csiphy_init - Initialize the CSI PHY frontends
- */
-int omap3isp_csiphy_init(struct isp_device *isp)
-{
-	struct isp_csiphy *phy1 = &isp->isp_csiphy1;
-	struct isp_csiphy *phy2 = &isp->isp_csiphy2;
-
-	phy2->isp = isp;
-	phy2->csi2 = &isp->isp_csi2a;
-	phy2->num_data_lanes = ISP_CSIPHY2_NUM_DATA_LANES;
-	phy2->cfg_regs = OMAP3_ISP_IOMEM_CSI2A_REGS1;
-	phy2->phy_regs = OMAP3_ISP_IOMEM_CSIPHY2;
-	mutex_init(&phy2->mutex);
-
-	phy1->isp = isp;
-	mutex_init(&phy1->mutex);
-
-	if (isp->revision == ISP_REVISION_15_0) {
-		phy1->csi2 = &isp->isp_csi2c;
-		phy1->num_data_lanes = ISP_CSIPHY1_NUM_DATA_LANES;
-		phy1->cfg_regs = OMAP3_ISP_IOMEM_CSI2C_REGS1;
-		phy1->phy_regs = OMAP3_ISP_IOMEM_CSIPHY1;
-	}
-
-	return 0;
-}
-
-void omap3isp_csiphy_cleanup(struct isp_device *isp)
-{
-	mutex_destroy(&isp->isp_csiphy1.mutex);
-	mutex_destroy(&isp->isp_csiphy2.mutex);
-}