--- /dev/null
+/* Texas Instruments Triple 8-/10-BIT 165-/110-MSPS Video and Graphics
+ * Digitizer with Horizontal PLL registers
+ *
+ * Copyright (C) 2009 Texas Instruments Inc
+ * Author: Santiago Nunez-Corrales <santiago.nunez@ridgerun.com>
+ *
+ * This code is partially based upon the TVP5150 driver
+ * written by Mauro Carvalho Chehab (mchehab@infradead.org),
+ * the TVP514x driver written by Vaibhav Hiremath <hvaibhav@ti.com>
+ * and the TVP7002 driver in the TI LSP 2.10.00.14. Revisions by
+ * Muralidharan Karicheri and Snehaprabha Narnakaje (TI).
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/videodev2.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_graph.h>
+#include <linux/v4l2-dv-timings.h>
+#include <media/tvp7002.h>
+#include <media/v4l2-async.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-of.h>
+
+#include "tvp7002_reg.h"
+
+MODULE_DESCRIPTION("TI TVP7002 Video and Graphics Digitizer driver");
+MODULE_AUTHOR("Santiago Nunez-Corrales <santiago.nunez@ridgerun.com>");
+MODULE_LICENSE("GPL");
+
+/* I2C retry attempts */
+#define I2C_RETRY_COUNT (5)
+
+/* End of registers */
+#define TVP7002_EOR 0x5c
+
+/* Read write definition for registers */
+#define TVP7002_READ 0
+#define TVP7002_WRITE 1
+#define TVP7002_RESERVED 2
+
+/* Interlaced vs progressive mask and shift */
+#define TVP7002_IP_SHIFT 5
+#define TVP7002_INPR_MASK (0x01 << TVP7002_IP_SHIFT)
+
+/* Shift for CPL and LPF registers */
+#define TVP7002_CL_SHIFT 8
+#define TVP7002_CL_MASK 0x0f
+
+/* Debug functions */
+static bool debug;
+module_param(debug, bool, 0644);
+MODULE_PARM_DESC(debug, "Debug level (0-2)");
+
+/* Structure for register values */
+struct i2c_reg_value {
+ u8 reg;
+ u8 value;
+ u8 type;
+};
+
+/*
+ * Register default values (according to tvp7002 datasheet)
+ * In the case of read-only registers, the value (0xff) is
+ * never written. R/W functionality is controlled by the
+ * writable bit in the register struct definition.
+ */
+static const struct i2c_reg_value tvp7002_init_default[] = {
+ { TVP7002_CHIP_REV, 0xff, TVP7002_READ },
+ { TVP7002_HPLL_FDBK_DIV_MSBS, 0x67, TVP7002_WRITE },
+ { TVP7002_HPLL_FDBK_DIV_LSBS, 0x20, TVP7002_WRITE },
+ { TVP7002_HPLL_CRTL, 0xa0, TVP7002_WRITE },
+ { TVP7002_HPLL_PHASE_SEL, 0x80, TVP7002_WRITE },
+ { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
+ { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
+ { TVP7002_HSYNC_OUT_W, 0x60, TVP7002_WRITE },
+ { TVP7002_B_FINE_GAIN, 0x00, TVP7002_WRITE },
+ { TVP7002_G_FINE_GAIN, 0x00, TVP7002_WRITE },
+ { TVP7002_R_FINE_GAIN, 0x00, TVP7002_WRITE },
+ { TVP7002_B_FINE_OFF_MSBS, 0x80, TVP7002_WRITE },
+ { TVP7002_G_FINE_OFF_MSBS, 0x80, TVP7002_WRITE },
+ { TVP7002_R_FINE_OFF_MSBS, 0x80, TVP7002_WRITE },
+ { TVP7002_SYNC_CTL_1, 0x20, TVP7002_WRITE },
+ { TVP7002_HPLL_AND_CLAMP_CTL, 0x2e, TVP7002_WRITE },
+ { TVP7002_SYNC_ON_G_THRS, 0x5d, TVP7002_WRITE },
+ { TVP7002_SYNC_SEPARATOR_THRS, 0x47, TVP7002_WRITE },
+ { TVP7002_HPLL_PRE_COAST, 0x00, TVP7002_WRITE },
+ { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
+ { TVP7002_SYNC_DETECT_STAT, 0xff, TVP7002_READ },
+ { TVP7002_OUT_FORMATTER, 0x47, TVP7002_WRITE },
+ { TVP7002_MISC_CTL_1, 0x01, TVP7002_WRITE },
+ { TVP7002_MISC_CTL_2, 0x00, TVP7002_WRITE },
+ { TVP7002_MISC_CTL_3, 0x01, TVP7002_WRITE },
+ { TVP7002_IN_MUX_SEL_1, 0x00, TVP7002_WRITE },
+ { TVP7002_IN_MUX_SEL_2, 0x67, TVP7002_WRITE },
+ { TVP7002_B_AND_G_COARSE_GAIN, 0x77, TVP7002_WRITE },
+ { TVP7002_R_COARSE_GAIN, 0x07, TVP7002_WRITE },
+ { TVP7002_FINE_OFF_LSBS, 0x00, TVP7002_WRITE },
+ { TVP7002_B_COARSE_OFF, 0x10, TVP7002_WRITE },
+ { TVP7002_G_COARSE_OFF, 0x10, TVP7002_WRITE },
+ { TVP7002_R_COARSE_OFF, 0x10, TVP7002_WRITE },
+ { TVP7002_HSOUT_OUT_START, 0x08, TVP7002_WRITE },
+ { TVP7002_MISC_CTL_4, 0x00, TVP7002_WRITE },
+ { TVP7002_B_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ },
+ { TVP7002_G_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ },
+ { TVP7002_R_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ },
+ { TVP7002_AUTO_LVL_CTL_ENABLE, 0x80, TVP7002_WRITE },
+ { TVP7002_DGTL_ALC_OUT_MSBS, 0xff, TVP7002_READ },
+ { TVP7002_AUTO_LVL_CTL_FILTER, 0x53, TVP7002_WRITE },
+ { 0x29, 0x08, TVP7002_RESERVED },
+ { TVP7002_FINE_CLAMP_CTL, 0x07, TVP7002_WRITE },
+ /* PWR_CTL is controlled only by the probe and reset functions */
+ { TVP7002_PWR_CTL, 0x00, TVP7002_RESERVED },
+ { TVP7002_ADC_SETUP, 0x50, TVP7002_WRITE },
+ { TVP7002_COARSE_CLAMP_CTL, 0x00, TVP7002_WRITE },
+ { TVP7002_SOG_CLAMP, 0x80, TVP7002_WRITE },
+ { TVP7002_RGB_COARSE_CLAMP_CTL, 0x8c, TVP7002_WRITE },
+ { TVP7002_SOG_COARSE_CLAMP_CTL, 0x04, TVP7002_WRITE },
+ { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
+ { 0x32, 0x18, TVP7002_RESERVED },
+ { 0x33, 0x60, TVP7002_RESERVED },
+ { TVP7002_MVIS_STRIPPER_W, 0xff, TVP7002_RESERVED },
+ { TVP7002_VSYNC_ALGN, 0x10, TVP7002_WRITE },
+ { TVP7002_SYNC_BYPASS, 0x00, TVP7002_WRITE },
+ { TVP7002_L_FRAME_STAT_LSBS, 0xff, TVP7002_READ },
+ { TVP7002_L_FRAME_STAT_MSBS, 0xff, TVP7002_READ },
+ { TVP7002_CLK_L_STAT_LSBS, 0xff, TVP7002_READ },
+ { TVP7002_CLK_L_STAT_MSBS, 0xff, TVP7002_READ },
+ { TVP7002_HSYNC_W, 0xff, TVP7002_READ },
+ { TVP7002_VSYNC_W, 0xff, TVP7002_READ },
+ { TVP7002_L_LENGTH_TOL, 0x03, TVP7002_WRITE },
+ { 0x3e, 0x60, TVP7002_RESERVED },
+ { TVP7002_VIDEO_BWTH_CTL, 0x01, TVP7002_WRITE },
+ { TVP7002_AVID_START_PIXEL_LSBS, 0x01, TVP7002_WRITE },
+ { TVP7002_AVID_START_PIXEL_MSBS, 0x2c, TVP7002_WRITE },
+ { TVP7002_AVID_STOP_PIXEL_LSBS, 0x06, TVP7002_WRITE },
+ { TVP7002_AVID_STOP_PIXEL_MSBS, 0x2c, TVP7002_WRITE },
+ { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE },
+ { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE },
+ { TVP7002_VBLK_F_0_DURATION, 0x1e, TVP7002_WRITE },
+ { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE },
+ { TVP7002_FBIT_F_0_START_L_OFF, 0x00, TVP7002_WRITE },
+ { TVP7002_FBIT_F_1_START_L_OFF, 0x00, TVP7002_WRITE },
+ { TVP7002_YUV_Y_G_COEF_LSBS, 0xe3, TVP7002_WRITE },
+ { TVP7002_YUV_Y_G_COEF_MSBS, 0x16, TVP7002_WRITE },
+ { TVP7002_YUV_Y_B_COEF_LSBS, 0x4f, TVP7002_WRITE },
+ { TVP7002_YUV_Y_B_COEF_MSBS, 0x02, TVP7002_WRITE },
+ { TVP7002_YUV_Y_R_COEF_LSBS, 0xce, TVP7002_WRITE },
+ { TVP7002_YUV_Y_R_COEF_MSBS, 0x06, TVP7002_WRITE },
+ { TVP7002_YUV_U_G_COEF_LSBS, 0xab, TVP7002_WRITE },
+ { TVP7002_YUV_U_G_COEF_MSBS, 0xf3, TVP7002_WRITE },
+ { TVP7002_YUV_U_B_COEF_LSBS, 0x00, TVP7002_WRITE },
+ { TVP7002_YUV_U_B_COEF_MSBS, 0x10, TVP7002_WRITE },
+ { TVP7002_YUV_U_R_COEF_LSBS, 0x55, TVP7002_WRITE },
+ { TVP7002_YUV_U_R_COEF_MSBS, 0xfc, TVP7002_WRITE },
+ { TVP7002_YUV_V_G_COEF_LSBS, 0x78, TVP7002_WRITE },
+ { TVP7002_YUV_V_G_COEF_MSBS, 0xf1, TVP7002_WRITE },
+ { TVP7002_YUV_V_B_COEF_LSBS, 0x88, TVP7002_WRITE },
+ { TVP7002_YUV_V_B_COEF_MSBS, 0xfe, TVP7002_WRITE },
+ { TVP7002_YUV_V_R_COEF_LSBS, 0x00, TVP7002_WRITE },
+ { TVP7002_YUV_V_R_COEF_MSBS, 0x10, TVP7002_WRITE },
+ /* This signals end of register values */
+ { TVP7002_EOR, 0xff, TVP7002_RESERVED }
+};
+
+/* Register parameters for 480P */
+static const struct i2c_reg_value tvp7002_parms_480P[] = {
+ { TVP7002_HPLL_FDBK_DIV_MSBS, 0x35, TVP7002_WRITE },
+ { TVP7002_HPLL_FDBK_DIV_LSBS, 0xa0, TVP7002_WRITE },
+ { TVP7002_HPLL_CRTL, 0x02, TVP7002_WRITE },
+ { TVP7002_AVID_START_PIXEL_LSBS, 0x91, TVP7002_WRITE },
+ { TVP7002_AVID_START_PIXEL_MSBS, 0x00, TVP7002_WRITE },
+ { TVP7002_AVID_STOP_PIXEL_LSBS, 0x0B, TVP7002_WRITE },
+ { TVP7002_AVID_STOP_PIXEL_MSBS, 0x00, TVP7002_WRITE },
+ { TVP7002_VBLK_F_0_START_L_OFF, 0x03, TVP7002_WRITE },
+ { TVP7002_VBLK_F_1_START_L_OFF, 0x01, TVP7002_WRITE },
+ { TVP7002_VBLK_F_0_DURATION, 0x13, TVP7002_WRITE },
+ { TVP7002_VBLK_F_1_DURATION, 0x13, TVP7002_WRITE },
+ { TVP7002_ALC_PLACEMENT, 0x18, TVP7002_WRITE },
+ { TVP7002_CLAMP_START, 0x06, TVP7002_WRITE },
+ { TVP7002_CLAMP_W, 0x10, TVP7002_WRITE },
+ { TVP7002_HPLL_PRE_COAST, 0x03, TVP7002_WRITE },
+ { TVP7002_HPLL_POST_COAST, 0x03, TVP7002_WRITE },
+ { TVP7002_EOR, 0xff, TVP7002_RESERVED }
+};
+
+/* Register parameters for 576P */
+static const struct i2c_reg_value tvp7002_parms_576P[] = {
+ { TVP7002_HPLL_FDBK_DIV_MSBS, 0x36, TVP7002_WRITE },
+ { TVP7002_HPLL_FDBK_DIV_LSBS, 0x00, TVP7002_WRITE },
+ { TVP7002_HPLL_CRTL, 0x18, TVP7002_WRITE },
+ { TVP7002_AVID_START_PIXEL_LSBS, 0x9B, TVP7002_WRITE },
+ { TVP7002_AVID_START_PIXEL_MSBS, 0x00, TVP7002_WRITE },
+ { TVP7002_AVID_STOP_PIXEL_LSBS, 0x0F, TVP7002_WRITE },
+ { TVP7002_AVID_STOP_PIXEL_MSBS, 0x00, TVP7002_WRITE },
+ { TVP7002_VBLK_F_0_START_L_OFF, 0x00, TVP7002_WRITE },
+ { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE },
+ { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE },
+ { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE },
+ { TVP7002_ALC_PLACEMENT, 0x18, TVP7002_WRITE },
+ { TVP7002_CLAMP_START, 0x06, TVP7002_WRITE },
+ { TVP7002_CLAMP_W, 0x10, TVP7002_WRITE },
+ { TVP7002_HPLL_PRE_COAST, 0x03, TVP7002_WRITE },
+ { TVP7002_HPLL_POST_COAST, 0x03, TVP7002_WRITE },
+ { TVP7002_EOR, 0xff, TVP7002_RESERVED }
+};
+
+/* Register parameters for 1080I60 */
+static const struct i2c_reg_value tvp7002_parms_1080I60[] = {
+ { TVP7002_HPLL_FDBK_DIV_MSBS, 0x89, TVP7002_WRITE },
+ { TVP7002_HPLL_FDBK_DIV_LSBS, 0x80, TVP7002_WRITE },
+ { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE },
+ { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE },
+ { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
+ { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE },
+ { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE },
+ { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE },
+ { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE },
+ { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE },
+ { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE },
+ { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
+ { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
+ { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
+ { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE },
+ { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
+ { TVP7002_EOR, 0xff, TVP7002_RESERVED }
+};
+
+/* Register parameters for 1080P60 */
+static const struct i2c_reg_value tvp7002_parms_1080P60[] = {
+ { TVP7002_HPLL_FDBK_DIV_MSBS, 0x89, TVP7002_WRITE },
+ { TVP7002_HPLL_FDBK_DIV_LSBS, 0x80, TVP7002_WRITE },
+ { TVP7002_HPLL_CRTL, 0xE0, TVP7002_WRITE },
+ { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE },
+ { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
+ { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE },
+ { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE },
+ { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE },
+ { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE },
+ { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE },
+ { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE },
+ { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
+ { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
+ { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
+ { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE },
+ { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
+ { TVP7002_EOR, 0xff, TVP7002_RESERVED }
+};
+
+/* Register parameters for 1080I50 */
+static const struct i2c_reg_value tvp7002_parms_1080I50[] = {
+ { TVP7002_HPLL_FDBK_DIV_MSBS, 0xa5, TVP7002_WRITE },
+ { TVP7002_HPLL_FDBK_DIV_LSBS, 0x00, TVP7002_WRITE },
+ { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE },
+ { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE },
+ { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
+ { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE },
+ { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE },
+ { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE },
+ { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE },
+ { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE },
+ { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE },
+ { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
+ { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
+ { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
+ { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE },
+ { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
+ { TVP7002_EOR, 0xff, TVP7002_RESERVED }
+};
+
+/* Register parameters for 720P60 */
+static const struct i2c_reg_value tvp7002_parms_720P60[] = {
+ { TVP7002_HPLL_FDBK_DIV_MSBS, 0x67, TVP7002_WRITE },
+ { TVP7002_HPLL_FDBK_DIV_LSBS, 0x20, TVP7002_WRITE },
+ { TVP7002_HPLL_CRTL, 0xa0, TVP7002_WRITE },
+ { TVP7002_AVID_START_PIXEL_LSBS, 0x47, TVP7002_WRITE },
+ { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
+ { TVP7002_AVID_STOP_PIXEL_LSBS, 0x4B, TVP7002_WRITE },
+ { TVP7002_AVID_STOP_PIXEL_MSBS, 0x06, TVP7002_WRITE },
+ { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE },
+ { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE },
+ { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE },
+ { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE },
+ { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
+ { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
+ { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
+ { TVP7002_HPLL_PRE_COAST, 0x00, TVP7002_WRITE },
+ { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
+ { TVP7002_EOR, 0xff, TVP7002_RESERVED }
+};
+
+/* Register parameters for 720P50 */
+static const struct i2c_reg_value tvp7002_parms_720P50[] = {
+ { TVP7002_HPLL_FDBK_DIV_MSBS, 0x7b, TVP7002_WRITE },
+ { TVP7002_HPLL_FDBK_DIV_LSBS, 0xc0, TVP7002_WRITE },
+ { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE },
+ { TVP7002_AVID_START_PIXEL_LSBS, 0x47, TVP7002_WRITE },
+ { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
+ { TVP7002_AVID_STOP_PIXEL_LSBS, 0x4B, TVP7002_WRITE },
+ { TVP7002_AVID_STOP_PIXEL_MSBS, 0x06, TVP7002_WRITE },
+ { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE },
+ { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE },
+ { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE },
+ { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE },
+ { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
+ { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
+ { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
+ { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE },
+ { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
+ { TVP7002_EOR, 0xff, TVP7002_RESERVED }
+};
+
+/* Timings definition for handling device operation */
+struct tvp7002_timings_definition {
+ struct v4l2_dv_timings timings;
+ const struct i2c_reg_value *p_settings;
+ enum v4l2_colorspace color_space;
+ enum v4l2_field scanmode;
+ u16 progressive;
+ u16 lines_per_frame;
+ u16 cpl_min;
+ u16 cpl_max;
+};
+
+/* Struct list for digital video timings */
+static const struct tvp7002_timings_definition tvp7002_timings[] = {
+ {
+ V4L2_DV_BT_CEA_1280X720P60,
+ tvp7002_parms_720P60,
+ V4L2_COLORSPACE_REC709,
+ V4L2_FIELD_NONE,
+ 1,
+ 0x2EE,
+ 135,
+ 153
+ },
+ {
+ V4L2_DV_BT_CEA_1920X1080I60,
+ tvp7002_parms_1080I60,
+ V4L2_COLORSPACE_REC709,
+ V4L2_FIELD_INTERLACED,
+ 0,
+ 0x465,
+ 181,
+ 205
+ },
+ {
+ V4L2_DV_BT_CEA_1920X1080I50,
+ tvp7002_parms_1080I50,
+ V4L2_COLORSPACE_REC709,
+ V4L2_FIELD_INTERLACED,
+ 0,
+ 0x465,
+ 217,
+ 245
+ },
+ {
+ V4L2_DV_BT_CEA_1280X720P50,
+ tvp7002_parms_720P50,
+ V4L2_COLORSPACE_REC709,
+ V4L2_FIELD_NONE,
+ 1,
+ 0x2EE,
+ 163,
+ 183
+ },
+ {
+ V4L2_DV_BT_CEA_1920X1080P60,
+ tvp7002_parms_1080P60,
+ V4L2_COLORSPACE_REC709,
+ V4L2_FIELD_NONE,
+ 1,
+ 0x465,
+ 90,
+ 102
+ },
+ {
+ V4L2_DV_BT_CEA_720X480P59_94,
+ tvp7002_parms_480P,
+ V4L2_COLORSPACE_SMPTE170M,
+ V4L2_FIELD_NONE,
+ 1,
+ 0x20D,
+ 0xffff,
+ 0xffff
+ },
+ {
+ V4L2_DV_BT_CEA_720X576P50,
+ tvp7002_parms_576P,
+ V4L2_COLORSPACE_SMPTE170M,
+ V4L2_FIELD_NONE,
+ 1,
+ 0x271,
+ 0xffff,
+ 0xffff
+ }
+};
+
+#define NUM_TIMINGS ARRAY_SIZE(tvp7002_timings)
+
+/* Device definition */
+struct tvp7002 {
+ struct v4l2_subdev sd;
+ struct v4l2_ctrl_handler hdl;
+ const struct tvp7002_config *pdata;
+
+ int ver;
+ int streaming;
+
+ const struct tvp7002_timings_definition *current_timings;
+ struct media_pad pad;
+};
+
+/*
+ * to_tvp7002 - Obtain device handler TVP7002
+ * @sd: ptr to v4l2_subdev struct
+ *
+ * Returns device handler tvp7002.
+ */
+static inline struct tvp7002 *to_tvp7002(struct v4l2_subdev *sd)
+{
+ return container_of(sd, struct tvp7002, sd);
+}
+
+static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
+{
+ return &container_of(ctrl->handler, struct tvp7002, hdl)->sd;
+}
+
+/*
+ * tvp7002_read - Read a value from a register in an TVP7002
+ * @sd: ptr to v4l2_subdev struct
+ * @addr: TVP7002 register address
+ * @dst: pointer to 8-bit destination
+ *
+ * Returns value read if successful, or non-zero (-1) otherwise.
+ */
+static int tvp7002_read(struct v4l2_subdev *sd, u8 addr, u8 *dst)
+{
+ struct i2c_client *c = v4l2_get_subdevdata(sd);
+ int retry;
+ int error;
+
+ for (retry = 0; retry < I2C_RETRY_COUNT; retry++) {
+ error = i2c_smbus_read_byte_data(c, addr);
+
+ if (error >= 0) {
+ *dst = (u8)error;
+ return 0;
+ }
+
+ msleep_interruptible(10);
+ }
+ v4l2_err(sd, "TVP7002 read error %d\n", error);
+ return error;
+}
+
+/*
+ * tvp7002_read_err() - Read a register value with error code
+ * @sd: pointer to standard V4L2 sub-device structure
+ * @reg: destination register
+ * @val: value to be read
+ * @err: pointer to error value
+ *
+ * Read a value in a register and save error value in pointer.
+ * Also update the register table if successful
+ */
+static inline void tvp7002_read_err(struct v4l2_subdev *sd, u8 reg,
+ u8 *dst, int *err)
+{
+ if (!*err)
+ *err = tvp7002_read(sd, reg, dst);
+}
+
+/*
+ * tvp7002_write() - Write a value to a register in TVP7002
+ * @sd: ptr to v4l2_subdev struct
+ * @addr: TVP7002 register address
+ * @value: value to be written to the register
+ *
+ * Write a value to a register in an TVP7002 decoder device.
+ * Returns zero if successful, or non-zero otherwise.
+ */
+static int tvp7002_write(struct v4l2_subdev *sd, u8 addr, u8 value)
+{
+ struct i2c_client *c;
+ int retry;
+ int error;
+
+ c = v4l2_get_subdevdata(sd);
+
+ for (retry = 0; retry < I2C_RETRY_COUNT; retry++) {
+ error = i2c_smbus_write_byte_data(c, addr, value);
+
+ if (error >= 0)
+ return 0;
+
+ v4l2_warn(sd, "Write: retry ... %d\n", retry);
+ msleep_interruptible(10);
+ }
+ v4l2_err(sd, "TVP7002 write error %d\n", error);
+ return error;
+}
+
+/*
+ * tvp7002_write_err() - Write a register value with error code
+ * @sd: pointer to standard V4L2 sub-device structure
+ * @reg: destination register
+ * @val: value to be written
+ * @err: pointer to error value
+ *
+ * Write a value in a register and save error value in pointer.
+ * Also update the register table if successful
+ */
+static inline void tvp7002_write_err(struct v4l2_subdev *sd, u8 reg,
+ u8 val, int *err)
+{
+ if (!*err)
+ *err = tvp7002_write(sd, reg, val);
+}
+
+/*
+ * tvp7002_write_inittab() - Write initialization values
+ * @sd: ptr to v4l2_subdev struct
+ * @regs: ptr to i2c_reg_value struct
+ *
+ * Write initialization values.
+ * Returns zero or -EINVAL if read operation fails.
+ */
+static int tvp7002_write_inittab(struct v4l2_subdev *sd,
+ const struct i2c_reg_value *regs)
+{
+ int error = 0;
+
+ /* Initialize the first (defined) registers */
+ while (TVP7002_EOR != regs->reg) {
+ if (TVP7002_WRITE == regs->type)
+ tvp7002_write_err(sd, regs->reg, regs->value, &error);
+ regs++;
+ }
+
+ return error;
+}
+
+static int tvp7002_s_dv_timings(struct v4l2_subdev *sd,
+ struct v4l2_dv_timings *dv_timings)
+{
+ struct tvp7002 *device = to_tvp7002(sd);
+ const struct v4l2_bt_timings *bt = &dv_timings->bt;
+ int i;
+
+ if (dv_timings->type != V4L2_DV_BT_656_1120)
+ return -EINVAL;
+ for (i = 0; i < NUM_TIMINGS; i++) {
+ const struct v4l2_bt_timings *t = &tvp7002_timings[i].timings.bt;
+
+ if (!memcmp(bt, t, &bt->standards - &bt->width)) {
+ device->current_timings = &tvp7002_timings[i];
+ return tvp7002_write_inittab(sd, tvp7002_timings[i].p_settings);
+ }
+ }
+ return -EINVAL;
+}
+
+static int tvp7002_g_dv_timings(struct v4l2_subdev *sd,
+ struct v4l2_dv_timings *dv_timings)
+{
+ struct tvp7002 *device = to_tvp7002(sd);
+
+ *dv_timings = device->current_timings->timings;
+ return 0;
+}
+
+/*
+ * tvp7002_s_ctrl() - Set a control
+ * @ctrl: ptr to v4l2_ctrl struct
+ *
+ * Set a control in TVP7002 decoder device.
+ * Returns zero when successful or -EINVAL if register access fails.
+ */
+static int tvp7002_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct v4l2_subdev *sd = to_sd(ctrl);
+ int error = 0;
+
+ switch (ctrl->id) {
+ case V4L2_CID_GAIN:
+ tvp7002_write_err(sd, TVP7002_R_FINE_GAIN, ctrl->val, &error);
+ tvp7002_write_err(sd, TVP7002_G_FINE_GAIN, ctrl->val, &error);
+ tvp7002_write_err(sd, TVP7002_B_FINE_GAIN, ctrl->val, &error);
+ return error;
+ }
+ return -EINVAL;
+}
+
+/*
+ * tvp7002_mbus_fmt() - V4L2 decoder interface handler for try/s/g_mbus_fmt
+ * @sd: pointer to standard V4L2 sub-device structure
+ * @f: pointer to mediabus format structure
+ *
+ * Negotiate the image capture size and mediabus format.
+ * There is only one possible format, so this single function works for
+ * get, set and try.
+ */
+static int tvp7002_mbus_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *f)
+{
+ struct tvp7002 *device = to_tvp7002(sd);
+ const struct v4l2_bt_timings *bt = &device->current_timings->timings.bt;
+
+ f->width = bt->width;
+ f->height = bt->height;
+ f->code = MEDIA_BUS_FMT_YUYV10_1X20;
+ f->field = device->current_timings->scanmode;
+ f->colorspace = device->current_timings->color_space;
+
+ v4l2_dbg(1, debug, sd, "MBUS_FMT: Width - %d, Height - %d",
+ f->width, f->height);
+ return 0;
+}
+
+/*
+ * tvp7002_query_dv() - query DV timings
+ * @sd: pointer to standard V4L2 sub-device structure
+ * @index: index into the tvp7002_timings array
+ *
+ * Returns the current DV timings detected by TVP7002. If no active input is
+ * detected, returns -EINVAL
+ */
+static int tvp7002_query_dv(struct v4l2_subdev *sd, int *index)
+{
+ const struct tvp7002_timings_definition *timings = tvp7002_timings;
+ u8 progressive;
+ u32 lpfr;
+ u32 cpln;
+ int error = 0;
+ u8 lpf_lsb;
+ u8 lpf_msb;
+ u8 cpl_lsb;
+ u8 cpl_msb;
+
+ /* Return invalid index if no active input is detected */
+ *index = NUM_TIMINGS;
+
+ /* Read standards from device registers */
+ tvp7002_read_err(sd, TVP7002_L_FRAME_STAT_LSBS, &lpf_lsb, &error);
+ tvp7002_read_err(sd, TVP7002_L_FRAME_STAT_MSBS, &lpf_msb, &error);
+
+ if (error < 0)
+ return error;
+
+ tvp7002_read_err(sd, TVP7002_CLK_L_STAT_LSBS, &cpl_lsb, &error);
+ tvp7002_read_err(sd, TVP7002_CLK_L_STAT_MSBS, &cpl_msb, &error);
+
+ if (error < 0)
+ return error;
+
+ /* Get lines per frame, clocks per line and interlaced/progresive */
+ lpfr = lpf_lsb | ((TVP7002_CL_MASK & lpf_msb) << TVP7002_CL_SHIFT);
+ cpln = cpl_lsb | ((TVP7002_CL_MASK & cpl_msb) << TVP7002_CL_SHIFT);
+ progressive = (lpf_msb & TVP7002_INPR_MASK) >> TVP7002_IP_SHIFT;
+
+ /* Do checking of video modes */
+ for (*index = 0; *index < NUM_TIMINGS; (*index)++, timings++)
+ if (lpfr == timings->lines_per_frame &&
+ progressive == timings->progressive) {
+ if (timings->cpl_min == 0xffff)
+ break;
+ if (cpln >= timings->cpl_min && cpln <= timings->cpl_max)
+ break;
+ }
+
+ if (*index == NUM_TIMINGS) {
+ v4l2_dbg(1, debug, sd, "detection failed: lpf = %x, cpl = %x\n",
+ lpfr, cpln);
+ return -ENOLINK;
+ }
+
+ /* Update lines per frame and clocks per line info */
+ v4l2_dbg(1, debug, sd, "detected timings: %d\n", *index);
+ return 0;
+}
+
+static int tvp7002_query_dv_timings(struct v4l2_subdev *sd,
+ struct v4l2_dv_timings *timings)
+{
+ int index;
+ int err = tvp7002_query_dv(sd, &index);
+
+ if (err)
+ return err;
+ *timings = tvp7002_timings[index].timings;
+ return 0;
+}
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+/*
+ * tvp7002_g_register() - Get the value of a register
+ * @sd: ptr to v4l2_subdev struct
+ * @reg: ptr to v4l2_dbg_register struct
+ *
+ * Get the value of a TVP7002 decoder device register.
+ * Returns zero when successful, -EINVAL if register read fails or
+ * access to I2C client fails.
+ */
+static int tvp7002_g_register(struct v4l2_subdev *sd,
+ struct v4l2_dbg_register *reg)
+{
+ u8 val;
+ int ret;
+
+ ret = tvp7002_read(sd, reg->reg & 0xff, &val);
+ reg->val = val;
+ reg->size = 1;
+ return ret;
+}
+
+/*
+ * tvp7002_s_register() - set a control
+ * @sd: ptr to v4l2_subdev struct
+ * @reg: ptr to v4l2_dbg_register struct
+ *
+ * Get the value of a TVP7002 decoder device register.
+ * Returns zero when successful, -EINVAL if register read fails.
+ */
+static int tvp7002_s_register(struct v4l2_subdev *sd,
+ const struct v4l2_dbg_register *reg)
+{
+ return tvp7002_write(sd, reg->reg & 0xff, reg->val & 0xff);
+}
+#endif
+
+/*
+ * tvp7002_enum_mbus_fmt() - Enum supported mediabus formats
+ * @sd: pointer to standard V4L2 sub-device structure
+ * @index: format index
+ * @code: pointer to mediabus format
+ *
+ * Enumerate supported mediabus formats.
+ */
+
+static int tvp7002_enum_mbus_fmt(struct v4l2_subdev *sd, unsigned index,
+ u32 *code)
+{
+ /* Check requested format index is within range */
+ if (index)
+ return -EINVAL;
+ *code = MEDIA_BUS_FMT_YUYV10_1X20;
+ return 0;
+}
+
+/*
+ * tvp7002_s_stream() - V4L2 decoder i/f handler for s_stream
+ * @sd: pointer to standard V4L2 sub-device structure
+ * @enable: streaming enable or disable
+ *
+ * Sets streaming to enable or disable, if possible.
+ */
+static int tvp7002_s_stream(struct v4l2_subdev *sd, int enable)
+{
+ struct tvp7002 *device = to_tvp7002(sd);
+ int error;
+
+ if (device->streaming == enable)
+ return 0;
+
+ /* low impedance: on, high impedance: off */
+ error = tvp7002_write(sd, TVP7002_MISC_CTL_2, enable ? 0x00 : 0x03);
+ if (error) {
+ v4l2_dbg(1, debug, sd, "Fail to set streaming\n");
+ return error;
+ }
+
+ device->streaming = enable;
+ return 0;
+}
+
+/*
+ * tvp7002_log_status() - Print information about register settings
+ * @sd: ptr to v4l2_subdev struct
+ *
+ * Log register values of a TVP7002 decoder device.
+ * Returns zero or -EINVAL if read operation fails.
+ */
+static int tvp7002_log_status(struct v4l2_subdev *sd)
+{
+ struct tvp7002 *device = to_tvp7002(sd);
+ const struct v4l2_bt_timings *bt;
+ int detected;
+
+ /* Find my current timings */
+ tvp7002_query_dv(sd, &detected);
+
+ bt = &device->current_timings->timings.bt;
+ v4l2_info(sd, "Selected DV Timings: %ux%u\n", bt->width, bt->height);
+ if (detected == NUM_TIMINGS) {
+ v4l2_info(sd, "Detected DV Timings: None\n");
+ } else {
+ bt = &tvp7002_timings[detected].timings.bt;
+ v4l2_info(sd, "Detected DV Timings: %ux%u\n",
+ bt->width, bt->height);
+ }
+ v4l2_info(sd, "Streaming enabled: %s\n",
+ device->streaming ? "yes" : "no");
+
+ /* Print the current value of the gain control */
+ v4l2_ctrl_handler_log_status(&device->hdl, sd->name);
+
+ return 0;
+}
+
+static int tvp7002_enum_dv_timings(struct v4l2_subdev *sd,
+ struct v4l2_enum_dv_timings *timings)
+{
+ if (timings->pad != 0)
+ return -EINVAL;
+
+ /* Check requested format index is within range */
+ if (timings->index >= NUM_TIMINGS)
+ return -EINVAL;
+
+ timings->timings = tvp7002_timings[timings->index].timings;
+ return 0;
+}
+
+static const struct v4l2_ctrl_ops tvp7002_ctrl_ops = {
+ .s_ctrl = tvp7002_s_ctrl,
+};
+
+/*
+ * tvp7002_enum_mbus_code() - Enum supported digital video format on pad
+ * @sd: pointer to standard V4L2 sub-device structure
+ * @cfg: pad configuration
+ * @code: pointer to subdev enum mbus code struct
+ *
+ * Enumerate supported digital video formats for pad.
+ */
+static int
+tvp7002_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_mbus_code_enum *code)
+{
+ /* Check requested format index is within range */
+ if (code->index != 0)
+ return -EINVAL;
+
+ code->code = MEDIA_BUS_FMT_YUYV10_1X20;
+
+ return 0;
+}
+
+/*
+ * tvp7002_get_pad_format() - get video format on pad
+ * @sd: pointer to standard V4L2 sub-device structure
+ * @cfg: pad configuration
+ * @fmt: pointer to subdev format struct
+ *
+ * get video format for pad.
+ */
+static int
+tvp7002_get_pad_format(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_format *fmt)
+{
+ struct tvp7002 *tvp7002 = to_tvp7002(sd);
+
+ fmt->format.code = MEDIA_BUS_FMT_YUYV10_1X20;
+ fmt->format.width = tvp7002->current_timings->timings.bt.width;
+ fmt->format.height = tvp7002->current_timings->timings.bt.height;
+ fmt->format.field = tvp7002->current_timings->scanmode;
+ fmt->format.colorspace = tvp7002->current_timings->color_space;
+
+ return 0;
+}
+
+/*
+ * tvp7002_set_pad_format() - set video format on pad
+ * @sd: pointer to standard V4L2 sub-device structure
+ * @cfg: pad configuration
+ * @fmt: pointer to subdev format struct
+ *
+ * set video format for pad.
+ */
+static int
+tvp7002_set_pad_format(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_format *fmt)
+{
+ return tvp7002_get_pad_format(sd, cfg, fmt);
+}
+
+/* V4L2 core operation handlers */
+static const struct v4l2_subdev_core_ops tvp7002_core_ops = {
+ .log_status = tvp7002_log_status,
+ .g_ext_ctrls = v4l2_subdev_g_ext_ctrls,
+ .try_ext_ctrls = v4l2_subdev_try_ext_ctrls,
+ .s_ext_ctrls = v4l2_subdev_s_ext_ctrls,
+ .g_ctrl = v4l2_subdev_g_ctrl,
+ .s_ctrl = v4l2_subdev_s_ctrl,
+ .queryctrl = v4l2_subdev_queryctrl,
+ .querymenu = v4l2_subdev_querymenu,
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+ .g_register = tvp7002_g_register,
+ .s_register = tvp7002_s_register,
+#endif
+};
+
+/* Specific video subsystem operation handlers */
+static const struct v4l2_subdev_video_ops tvp7002_video_ops = {
+ .g_dv_timings = tvp7002_g_dv_timings,
+ .s_dv_timings = tvp7002_s_dv_timings,
+ .query_dv_timings = tvp7002_query_dv_timings,
+ .s_stream = tvp7002_s_stream,
+ .g_mbus_fmt = tvp7002_mbus_fmt,
+ .try_mbus_fmt = tvp7002_mbus_fmt,
+ .s_mbus_fmt = tvp7002_mbus_fmt,
+ .enum_mbus_fmt = tvp7002_enum_mbus_fmt,
+};
+
+/* media pad related operation handlers */
+static const struct v4l2_subdev_pad_ops tvp7002_pad_ops = {
+ .enum_mbus_code = tvp7002_enum_mbus_code,
+ .get_fmt = tvp7002_get_pad_format,
+ .set_fmt = tvp7002_set_pad_format,
+ .enum_dv_timings = tvp7002_enum_dv_timings,
+};
+
+/* V4L2 top level operation handlers */
+static const struct v4l2_subdev_ops tvp7002_ops = {
+ .core = &tvp7002_core_ops,
+ .video = &tvp7002_video_ops,
+ .pad = &tvp7002_pad_ops,
+};
+
+static struct tvp7002_config *
+tvp7002_get_pdata(struct i2c_client *client)
+{
+ struct v4l2_of_endpoint bus_cfg;
+ struct tvp7002_config *pdata;
+ struct device_node *endpoint;
+ unsigned int flags;
+
+ if (!IS_ENABLED(CONFIG_OF) || !client->dev.of_node)
+ return client->dev.platform_data;
+
+ endpoint = of_graph_get_next_endpoint(client->dev.of_node, NULL);
+ if (!endpoint)
+ return NULL;
+
+ pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ goto done;
+
+ v4l2_of_parse_endpoint(endpoint, &bus_cfg);
+ flags = bus_cfg.bus.parallel.flags;
+
+ if (flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH)
+ pdata->hs_polarity = 1;
+
+ if (flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH)
+ pdata->vs_polarity = 1;
+
+ if (flags & V4L2_MBUS_PCLK_SAMPLE_RISING)
+ pdata->clk_polarity = 1;
+
+ if (flags & V4L2_MBUS_FIELD_EVEN_HIGH)
+ pdata->fid_polarity = 1;
+
+ if (flags & V4L2_MBUS_VIDEO_SOG_ACTIVE_HIGH)
+ pdata->sog_polarity = 1;
+
+done:
+ of_node_put(endpoint);
+ return pdata;
+}
+
+/*
+ * tvp7002_probe - Probe a TVP7002 device
+ * @c: ptr to i2c_client struct
+ * @id: ptr to i2c_device_id struct
+ *
+ * Initialize the TVP7002 device
+ * Returns zero when successful, -EINVAL if register read fails or
+ * -EIO if i2c access is not available.
+ */
+static int tvp7002_probe(struct i2c_client *c, const struct i2c_device_id *id)
+{
+ struct tvp7002_config *pdata = tvp7002_get_pdata(c);
+ struct v4l2_subdev *sd;
+ struct tvp7002 *device;
+ struct v4l2_dv_timings timings;
+ int polarity_a;
+ int polarity_b;
+ u8 revision;
+ int error;
+
+ if (pdata == NULL) {
+ dev_err(&c->dev, "No platform data\n");
+ return -EINVAL;
+ }
+
+ /* Check if the adapter supports the needed features */
+ if (!i2c_check_functionality(c->adapter,
+ I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
+ return -EIO;
+
+ device = devm_kzalloc(&c->dev, sizeof(struct tvp7002), GFP_KERNEL);
+
+ if (!device)
+ return -ENOMEM;
+
+ sd = &device->sd;
+ device->pdata = pdata;
+ device->current_timings = tvp7002_timings;
+
+ /* Tell v4l2 the device is ready */
+ v4l2_i2c_subdev_init(sd, c, &tvp7002_ops);
+ v4l_info(c, "tvp7002 found @ 0x%02x (%s)\n",
+ c->addr, c->adapter->name);
+
+ error = tvp7002_read(sd, TVP7002_CHIP_REV, &revision);
+ if (error < 0)
+ return error;
+
+ /* Get revision number */
+ v4l2_info(sd, "Rev. %02x detected.\n", revision);
+ if (revision != 0x02)
+ v4l2_info(sd, "Unknown revision detected.\n");
+
+ /* Initializes TVP7002 to its default values */
+ error = tvp7002_write_inittab(sd, tvp7002_init_default);
+
+ if (error < 0)
+ return error;
+
+ /* Set polarity information after registers have been set */
+ polarity_a = 0x20 | device->pdata->hs_polarity << 5
+ | device->pdata->vs_polarity << 2;
+ error = tvp7002_write(sd, TVP7002_SYNC_CTL_1, polarity_a);
+ if (error < 0)
+ return error;
+
+ polarity_b = 0x01 | device->pdata->fid_polarity << 2
+ | device->pdata->sog_polarity << 1
+ | device->pdata->clk_polarity;
+ error = tvp7002_write(sd, TVP7002_MISC_CTL_3, polarity_b);
+ if (error < 0)
+ return error;
+
+ /* Set registers according to default video mode */
+ timings = device->current_timings->timings;
+ error = tvp7002_s_dv_timings(sd, &timings);
+
+#if defined(CONFIG_MEDIA_CONTROLLER)
+ device->pad.flags = MEDIA_PAD_FL_SOURCE;
+ device->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+ device->sd.entity.flags |= MEDIA_ENT_T_V4L2_SUBDEV_DECODER;
+
+ error = media_entity_init(&device->sd.entity, 1, &device->pad, 0);
+ if (error < 0)
+ return error;
+#endif
+
+ v4l2_ctrl_handler_init(&device->hdl, 1);
+ v4l2_ctrl_new_std(&device->hdl, &tvp7002_ctrl_ops,
+ V4L2_CID_GAIN, 0, 255, 1, 0);
+ sd->ctrl_handler = &device->hdl;
+ if (device->hdl.error) {
+ error = device->hdl.error;
+ goto error;
+ }
+ v4l2_ctrl_handler_setup(&device->hdl);
+
+ error = v4l2_async_register_subdev(&device->sd);
+ if (error)
+ goto error;
+
+ return 0;
+
+error:
+ v4l2_ctrl_handler_free(&device->hdl);
+#if defined(CONFIG_MEDIA_CONTROLLER)
+ media_entity_cleanup(&device->sd.entity);
+#endif
+ return error;
+}
+
+/*
+ * tvp7002_remove - Remove TVP7002 device support
+ * @c: ptr to i2c_client struct
+ *
+ * Reset the TVP7002 device
+ * Returns zero.
+ */
+static int tvp7002_remove(struct i2c_client *c)
+{
+ struct v4l2_subdev *sd = i2c_get_clientdata(c);
+ struct tvp7002 *device = to_tvp7002(sd);
+
+ v4l2_dbg(1, debug, sd, "Removing tvp7002 adapter"
+ "on address 0x%x\n", c->addr);
+ v4l2_async_unregister_subdev(&device->sd);
+#if defined(CONFIG_MEDIA_CONTROLLER)
+ media_entity_cleanup(&device->sd.entity);
+#endif
+ v4l2_ctrl_handler_free(&device->hdl);
+ return 0;
+}
+
+/* I2C Device ID table */
+static const struct i2c_device_id tvp7002_id[] = {
+ { "tvp7002", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, tvp7002_id);
+
+#if IS_ENABLED(CONFIG_OF)
+static const struct of_device_id tvp7002_of_match[] = {
+ { .compatible = "ti,tvp7002", },
+ { /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, tvp7002_of_match);
+#endif
+
+/* I2C driver data */
+static struct i2c_driver tvp7002_driver = {
+ .driver = {
+ .of_match_table = of_match_ptr(tvp7002_of_match),
+ .owner = THIS_MODULE,
+ .name = TVP7002_MODULE_NAME,
+ },
+ .probe = tvp7002_probe,
+ .remove = tvp7002_remove,
+ .id_table = tvp7002_id,
+};
+
+module_i2c_driver(tvp7002_driver);
Code Review / kvmfornfv.git / blobdiff