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Diffstat (limited to 'drivers/media/video/omap3isp/ispcsiphy.c')
-rw-r--r--drivers/media/video/omap3isp/ispcsiphy.c249
1 files changed, 0 insertions, 249 deletions
diff --git a/drivers/media/video/omap3isp/ispcsiphy.c b/drivers/media/video/omap3isp/ispcsiphy.c
deleted file mode 100644
index 348f67ebbbc..00000000000
--- a/drivers/media/video/omap3isp/ispcsiphy.c
+++ /dev/null
@@ -1,249 +0,0 @@
-/*
- * 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>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- */
-
-#include <linux/delay.h>
-#include <linux/device.h>
-#include <linux/regulator/consumer.h>
-
-#include "isp.h"
-#include "ispreg.h"
-#include "ispcsiphy.h"
-
-/*
- * csiphy_lanes_config - Configuration of CSIPHY lanes.
- *
- * Updates HW configuration.
- * Called with phy->mutex taken.
- */
-static void csiphy_lanes_config(struct isp_csiphy *phy)
-{
- unsigned int i;
- u32 reg;
-
- reg = isp_reg_readl(phy->isp, phy->cfg_regs, ISPCSI2_PHY_CFG);
-
- for (i = 0; i < phy->num_data_lanes; i++) {
- reg &= ~(ISPCSI2_PHY_CFG_DATA_POL_MASK(i + 1) |
- ISPCSI2_PHY_CFG_DATA_POSITION_MASK(i + 1));
- reg |= (phy->lanes.data[i].pol <<
- ISPCSI2_PHY_CFG_DATA_POL_SHIFT(i + 1));
- reg |= (phy->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 |= phy->lanes.clk.pol << ISPCSI2_PHY_CFG_CLOCK_POL_SHIFT;
- reg |= phy->lanes.clk.pos << ISPCSI2_PHY_CFG_CLOCK_POSITION_SHIFT;
-
- isp_reg_writel(phy->isp, reg, phy->cfg_regs, ISPCSI2_PHY_CFG);
-}
-
-/*
- * 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) {
- printk(KERN_ERR "CSI2 CIO set power failed!\n");
- return -EBUSY;
- }
-
- return 0;
-}
-
-/*
- * csiphy_dphy_config - Configure CSI2 D-PHY parameters.
- *
- * Called with phy->mutex taken.
- */
-static void csiphy_dphy_config(struct isp_csiphy *phy)
-{
- u32 reg;
-
- /* Set up ISPCSIPHY_REG0 */
- reg = isp_reg_readl(phy->isp, phy->phy_regs, ISPCSIPHY_REG0);
-
- reg &= ~(ISPCSIPHY_REG0_THS_TERM_MASK |
- ISPCSIPHY_REG0_THS_SETTLE_MASK);
- reg |= phy->dphy.ths_term << ISPCSIPHY_REG0_THS_TERM_SHIFT;
- reg |= phy->dphy.ths_settle << ISPCSIPHY_REG0_THS_SETTLE_SHIFT;
-
- isp_reg_writel(phy->isp, reg, phy->phy_regs, ISPCSIPHY_REG0);
-
- /* Set up ISPCSIPHY_REG1 */
- 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 |= phy->dphy.tclk_term << ISPCSIPHY_REG1_TCLK_TERM_SHIFT;
- reg |= phy->dphy.tclk_miss << ISPCSIPHY_REG1_TCLK_MISS_SHIFT;
- reg |= phy->dphy.tclk_settle << ISPCSIPHY_REG1_TCLK_SETTLE_SHIFT;
-
- isp_reg_writel(phy->isp, reg, phy->phy_regs, ISPCSIPHY_REG1);
-}
-
-static int csiphy_config(struct isp_csiphy *phy,
- struct isp_csiphy_dphy_cfg *dphy,
- struct isp_csiphy_lanes_cfg *lanes)
-{
- unsigned int used_lanes = 0;
- unsigned int i;
-
- /* Clock and data lanes verification */
- for (i = 0; i < phy->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;
-
- mutex_lock(&phy->mutex);
- phy->dphy = *dphy;
- phy->lanes = *lanes;
- mutex_unlock(&phy->mutex);
-
- return 0;
-}
-
-int omap3isp_csiphy_acquire(struct isp_csiphy *phy)
-{
- 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;
-
- csiphy_dphy_config(phy);
- csiphy_lanes_config(phy);
-
- 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);
- phy->phy_in_use = 1;
-
-done:
- mutex_unlock(&phy->mutex);
- return rval;
-}
-
-void omap3isp_csiphy_release(struct isp_csiphy *phy)
-{
- mutex_lock(&phy->mutex);
- if (phy->phy_in_use) {
- csiphy_power_autoswitch_enable(phy, false);
- csiphy_set_power(phy, ISPCSI2_PHY_CFG_PWR_CMD_OFF);
- regulator_disable(phy->vdd);
- phy->phy_in_use = 0;
- }
- 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;
-
- isp->platform_cb.csiphy_config = csiphy_config;
-
- 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);
-
- if (isp->revision == ISP_REVISION_15_0) {
- phy1->isp = isp;
- 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;
- mutex_init(&phy1->mutex);
- }
-
- return 0;
-}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-28 05:20:35 +0000