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openmptcprouter/6.1/target/linux/bcm27xx/patches-6.1/950-0589-Revert-media-i2c-imx296-Support-for-the-Sony-IMX296-.patch
Ycarus (Yannick Chabanois) 3743692973 Fix RPI5 support
2023-11-17 17:31:36 +01:00

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From fe1b0a13f85d27e46dd52426f509a893d98fae6e Mon Sep 17 00:00:00 2001
From: Naushir Patuck <naush@raspberrypi.com>
Date: Tue, 14 Mar 2023 10:03:25 +0000
Subject: [PATCH] Revert "media: i2c: imx296: Support for the Sony IMX296
sensor"
This reverts commit 26c9a943e4a9fde3355dd12a3127f2f22f7d5551.
---
.../bindings/media/i2c/sony,imx296.yaml | 95 --
MAINTAINERS | 9 -
drivers/media/i2c/Kconfig | 12 -
drivers/media/i2c/Makefile | 1 -
drivers/media/i2c/imx296.c | 1293 -----------------
5 files changed, 1410 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/media/i2c/sony,imx296.yaml
delete mode 100644 drivers/media/i2c/imx296.c
--- a/Documentation/devicetree/bindings/media/i2c/sony,imx296.yaml
+++ /dev/null
@@ -1,95 +0,0 @@
-# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/media/i2c/sony,imx296.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: Sony IMX296 1/2.8-Inch CMOS Image Sensor
-
-maintainers:
- - Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
- - Laurent Pinchart <laurent.pinchart@ideasonboard.com>
-
-description: |-
- The Sony IMX296 is a 1/2.9-Inch active pixel type CMOS Solid-state image
- sensor with square pixel array and 1.58 M effective pixels. This chip
- features a global shutter with variable charge-integration time. It is
- programmable through I2C and 4-wire interfaces. The sensor output is
- available via CSI-2 serial data output (1 Lane).
-
-properties:
- compatible:
- const: sony,imx296
-
- reg:
- maxItems: 1
-
- clocks:
- maxItems: 1
-
- clock-names:
- description: Input clock (37.125 MHz, 54 MHz or 74.25 MHz)
- items:
- - const: inck
-
- avdd-supply:
- description: Analog power supply (3.3V)
-
- dvdd-supply:
- description: Digital power supply (1.2V)
-
- ovdd-supply:
- description: Interface power supply (1.8V)
-
- reset-gpios:
- description: Sensor reset (XCLR) GPIO
- maxItems: 1
-
- port:
- $ref: /schemas/graph.yaml#/properties/port
-
-required:
- - compatible
- - reg
- - clocks
- - clock-names
- - avdd-supply
- - dvdd-supply
- - ovdd-supply
- - port
-
-additionalProperties: false
-
-examples:
- - |
- #include <dt-bindings/gpio/gpio.h>
-
- i2c {
- #address-cells = <1>;
- #size-cells = <0>;
-
- imx296: camera-sensor@1a {
- compatible = "sony,imx296";
- reg = <0x1a>;
-
- pinctrl-names = "default";
- pinctrl-0 = <&camera_rear_default>;
-
- clocks = <&gcc 90>;
- clock-names = "inck";
-
- avdd-supply = <&camera_vdda_3v3>;
- dvdd-supply = <&camera_vddd_1v2>;
- ovdd-supply = <&camera_vddo_1v8>;
-
- reset-gpios = <&msmgpio 35 GPIO_ACTIVE_LOW>;
-
- port {
- imx296_ep: endpoint {
- remote-endpoint = <&csiphy0_ep>;
- };
- };
- };
- };
-
-...
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -19270,15 +19270,6 @@ T: git git://linuxtv.org/media_tree.git
F: Documentation/devicetree/bindings/media/i2c/imx290.txt
F: drivers/media/i2c/imx290.c
-SONY IMX296 SENSOR DRIVER
-M: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
-M: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
-L: linux-media@vger.kernel.org
-S: Maintained
-T: git git://linuxtv.org/media_tree.git
-F: Documentation/devicetree/bindings/media/i2c/sony,imx296.yaml
-F: drivers/media/i2c/imx296.c
-
SONY IMX319 SENSOR DRIVER
M: Bingbu Cao <bingbu.cao@intel.com>
L: linux-media@vger.kernel.org
--- a/drivers/media/i2c/Kconfig
+++ b/drivers/media/i2c/Kconfig
@@ -191,18 +191,6 @@ config VIDEO_IMX290
To compile this driver as a module, choose M here: the
module will be called imx290.
-config VIDEO_IMX296
- tristate "Sony IMX296 sensor support"
- depends on I2C && VIDEO_DEV
- select VIDEO_V4L2_SUBDEV_API
- select V4L2_FWNODE
- help
- This is a Video4Linux2 sensor driver for the Sony
- IMX296 camera.
-
- To compile this driver as a module, choose M here: the
- module will be called imx296.
-
config VIDEO_IMX319
tristate "Sony IMX319 sensor support"
depends on I2C && VIDEO_DEV
--- a/drivers/media/i2c/Makefile
+++ b/drivers/media/i2c/Makefile
@@ -46,7 +46,6 @@ obj-$(CONFIG_VIDEO_IMX219) += imx219.o
obj-$(CONFIG_VIDEO_IMX258) += imx258.o
obj-$(CONFIG_VIDEO_IMX274) += imx274.o
obj-$(CONFIG_VIDEO_IMX290) += imx290.o
-obj-$(CONFIG_VIDEO_IMX296) += imx296.o
obj-$(CONFIG_VIDEO_IMX319) += imx319.o
obj-$(CONFIG_VIDEO_IMX334) += imx334.o
obj-$(CONFIG_VIDEO_IMX335) += imx335.o
--- a/drivers/media/i2c/imx296.c
+++ /dev/null
@@ -1,1293 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Driver for IMX296 CMOS Image Sensor from Sony
- *
- * Copyright 2019 Laurent Pinchart <laurent.pinchart@ideasonboard.com>
- */
-
-#include <linux/clk.h>
-#include <linux/gpio/consumer.h>
-#include <linux/i2c.h>
-#include <linux/module.h>
-#include <linux/mutex.h>
-#include <linux/pm_runtime.h>
-#include <linux/regmap.h>
-#include <linux/regulator/consumer.h>
-#include <linux/slab.h>
-#include <linux/videodev2.h>
-
-#include <media/v4l2-ctrls.h>
-#include <media/v4l2-fwnode.h>
-#include <media/v4l2-subdev.h>
-
-#define IMX296_PIXEL_ARRAY_WIDTH 1456
-#define IMX296_PIXEL_ARRAY_HEIGHT 1088
-
-#define IMX296_REG_8BIT(n) ((1 << 16) | (n))
-#define IMX296_REG_16BIT(n) ((2 << 16) | (n))
-#define IMX296_REG_24BIT(n) ((3 << 16) | (n))
-#define IMX296_REG_SIZE_SHIFT 16
-#define IMX296_REG_ADDR_MASK 0xffff
-
-#define IMX296_CTRL00 IMX296_REG_8BIT(0x3000)
-#define IMX296_CTRL00_STANDBY BIT(0)
-#define IMX296_CTRL08 IMX296_REG_8BIT(0x3008)
-#define IMX296_CTRL08_REGHOLD BIT(0)
-#define IMX296_CTRL0A IMX296_REG_8BIT(0x300a)
-#define IMX296_CTRL0A_XMSTA BIT(0)
-#define IMX296_CTRL0B IMX296_REG_8BIT(0x300b)
-#define IMX296_CTRL0B_TRIGEN BIT(0)
-#define IMX296_CTRL0D IMX296_REG_8BIT(0x300d)
-#define IMX296_CTRL0D_WINMODE_ALL (0 << 0)
-#define IMX296_CTRL0D_WINMODE_FD_BINNING (2 << 0)
-#define IMX296_CTRL0D_HADD_ON_BINNING BIT(5)
-#define IMX296_CTRL0D_SAT_CNT BIT(6)
-#define IMX296_CTRL0E IMX296_REG_8BIT(0x300e)
-#define IMX296_CTRL0E_VREVERSE BIT(0)
-#define IMX296_CTRL0E_HREVERSE BIT(1)
-#define IMX296_VMAX IMX296_REG_24BIT(0x3010)
-#define IMX296_HMAX IMX296_REG_16BIT(0x3014)
-#define IMX296_TMDCTRL IMX296_REG_8BIT(0x301d)
-#define IMX296_TMDCTRL_LATCH BIT(0)
-#define IMX296_TMDOUT IMX296_REG_16BIT(0x301e)
-#define IMX296_TMDOUT_MASK 0x3ff
-#define IMX296_WDSEL IMX296_REG_8BIT(0x3021)
-#define IMX296_WDSEL_NORMAL (0 << 0)
-#define IMX296_WDSEL_MULTI_2 (1 << 0)
-#define IMX296_WDSEL_MULTI_4 (3 << 0)
-#define IMX296_BLKLEVELAUTO IMX296_REG_8BIT(0x3022)
-#define IMX296_BLKLEVELAUTO_ON 0x01
-#define IMX296_BLKLEVELAUTO_OFF 0xf0
-#define IMX296_SST IMX296_REG_8BIT(0x3024)
-#define IMX296_SST_EN BIT(0)
-#define IMX296_CTRLTOUT IMX296_REG_8BIT(0x3026)
-#define IMX296_CTRLTOUT_TOUT1SEL_LOW (0 << 0)
-#define IMX296_CTRLTOUT_TOUT1SEL_PULSE (3 << 0)
-#define IMX296_CTRLTOUT_TOUT2SEL_LOW (0 << 2)
-#define IMX296_CTRLTOUT_TOUT2SEL_PULSE (3 << 2)
-#define IMX296_CTRLTRIG IMX296_REG_8BIT(0x3029)
-#define IMX296_CTRLTRIG_TOUT1_SEL_LOW (0 << 0)
-#define IMX296_CTRLTRIG_TOUT1_SEL_PULSE1 (1 << 0)
-#define IMX296_CTRLTRIG_TOUT2_SEL_LOW (0 << 4)
-#define IMX296_CTRLTRIG_TOUT2_SEL_PULSE2 (2 << 4)
-#define IMX296_SYNCSEL IMX296_REG_8BIT(0x3036)
-#define IMX296_SYNCSEL_NORMAL 0xc0
-#define IMX296_SYNCSEL_HIZ 0xf0
-#define IMX296_PULSE1 IMX296_REG_8BIT(0x306d)
-#define IMX296_PULSE1_EN_NOR BIT(0)
-#define IMX296_PULSE1_EN_TRIG BIT(1)
-#define IMX296_PULSE1_POL_HIGH (0 << 2)
-#define IMX296_PULSE1_POL_LOW (1 << 2)
-#define IMX296_PULSE1_UP IMX296_REG_24BIT(0x3070)
-#define IMX296_PULSE1_DN IMX296_REG_24BIT(0x3074)
-#define IMX296_PULSE2 IMX296_REG_8BIT(0x3079)
-#define IMX296_PULSE2_EN_NOR BIT(0)
-#define IMX296_PULSE2_EN_TRIG BIT(1)
-#define IMX296_PULSE2_POL_HIGH (0 << 2)
-#define IMX296_PULSE2_POL_LOW (1 << 2)
-#define IMX296_PULSE2_UP IMX296_REG_24BIT(0x307c)
-#define IMX296_PULSE2_DN IMX296_REG_24BIT(0x3080)
-#define IMX296_INCKSEL(n) IMX296_REG_8BIT(0x3089 + (n))
-#define IMX296_SHS1 IMX296_REG_24BIT(0x308d)
-#define IMX296_SHS2 IMX296_REG_24BIT(0x3090)
-#define IMX296_SHS3 IMX296_REG_24BIT(0x3094)
-#define IMX296_SHS4 IMX296_REG_24BIT(0x3098)
-#define IMX296_VBLANKLP IMX296_REG_8BIT(0x309c)
-#define IMX296_VBLANKLP_NORMAL 0x04
-#define IMX296_VBLANKLP_LOW_POWER 0x2c
-#define IMX296_EXP_CNT IMX296_REG_8BIT(0x30a3)
-#define IMX296_EXP_CNT_RESET BIT(0)
-#define IMX296_EXP_MAX IMX296_REG_16BIT(0x30a6)
-#define IMX296_VINT IMX296_REG_8BIT(0x30aa)
-#define IMX296_VINT_EN BIT(0)
-#define IMX296_LOWLAGTRG IMX296_REG_8BIT(0x30ae)
-#define IMX296_LOWLAGTRG_FAST BIT(0)
-#define IMX296_I2CCTRL IMX296_REG_8BIT(0x30ef)
-#define IMX296_I2CCTRL_I2CACKEN BIT(0)
-
-#define IMX296_SENSOR_INFO IMX296_REG_16BIT(0x3148)
-#define IMX296_SENSOR_INFO_MONO BIT(15)
-#define IMX296_S_SHSA IMX296_REG_16BIT(0x31ca)
-#define IMX296_S_SHSB IMX296_REG_16BIT(0x31d2)
-/*
- * Registers 0x31c8 to 0x31cd, 0x31d0 to 0x31d5, 0x31e2, 0x31e3, 0x31ea and
- * 0x31eb are related to exposure mode but otherwise not documented.
- */
-
-#define IMX296_GAINCTRL IMX296_REG_8BIT(0x3200)
-#define IMX296_GAINCTRL_WD_GAIN_MODE_NORMAL 0x01
-#define IMX296_GAINCTRL_WD_GAIN_MODE_MULTI 0x41
-#define IMX296_GAIN IMX296_REG_16BIT(0x3204)
-#define IMX296_GAIN_MIN 0
-#define IMX296_GAIN_MAX 480
-#define IMX296_GAIN1 IMX296_REG_16BIT(0x3208)
-#define IMX296_GAIN2 IMX296_REG_16BIT(0x320c)
-#define IMX296_GAIN3 IMX296_REG_16BIT(0x3210)
-#define IMX296_GAINDLY IMX296_REG_8BIT(0x3212)
-#define IMX296_GAINDLY_NONE 0x08
-#define IMX296_GAINDLY_1FRAME 0x09
-#define IMX296_PGCTRL IMX296_REG_8BIT(0x3238)
-#define IMX296_PGCTRL_REGEN BIT(0)
-#define IMX296_PGCTRL_THRU BIT(1)
-#define IMX296_PGCTRL_CLKEN BIT(2)
-#define IMX296_PGCTRL_MODE(n) ((n) << 3)
-#define IMX296_PGHPOS IMX296_REG_16BIT(0x3239)
-#define IMX296_PGVPOS IMX296_REG_16BIT(0x323c)
-#define IMX296_PGHPSTEP IMX296_REG_8BIT(0x323e)
-#define IMX296_PGVPSTEP IMX296_REG_8BIT(0x323f)
-#define IMX296_PGHPNUM IMX296_REG_8BIT(0x3240)
-#define IMX296_PGVPNUM IMX296_REG_8BIT(0x3241)
-#define IMX296_PGDATA1 IMX296_REG_16BIT(0x3244)
-#define IMX296_PGDATA2 IMX296_REG_16BIT(0x3246)
-#define IMX296_PGHGSTEP IMX296_REG_8BIT(0x3249)
-#define IMX296_BLKLEVEL IMX296_REG_16BIT(0x3254)
-
-#define IMX296_FID0_ROI IMX296_REG_8BIT(0x3300)
-#define IMX296_FID0_ROIH1ON BIT(0)
-#define IMX296_FID0_ROIV1ON BIT(1)
-#define IMX296_FID0_ROIPH1 IMX296_REG_16BIT(0x3310)
-#define IMX296_FID0_ROIPV1 IMX296_REG_16BIT(0x3312)
-#define IMX296_FID0_ROIWH1 IMX296_REG_16BIT(0x3314)
-#define IMX296_FID0_ROIWH1_MIN 80
-#define IMX296_FID0_ROIWV1 IMX296_REG_16BIT(0x3316)
-#define IMX296_FID0_ROIWV1_MIN 4
-
-#define IMX296_CM_HSST_STARTTMG IMX296_REG_16BIT(0x4018)
-#define IMX296_CM_HSST_ENDTMG IMX296_REG_16BIT(0x401a)
-#define IMX296_DA_HSST_STARTTMG IMX296_REG_16BIT(0x404d)
-#define IMX296_DA_HSST_ENDTMG IMX296_REG_16BIT(0x4050)
-#define IMX296_LM_HSST_STARTTMG IMX296_REG_16BIT(0x4094)
-#define IMX296_LM_HSST_ENDTMG IMX296_REG_16BIT(0x4096)
-#define IMX296_SST_SIEASTA1_SET IMX296_REG_8BIT(0x40c9)
-#define IMX296_SST_SIEASTA1PRE_1U IMX296_REG_16BIT(0x40cc)
-#define IMX296_SST_SIEASTA1PRE_1D IMX296_REG_16BIT(0x40ce)
-#define IMX296_SST_SIEASTA1PRE_2U IMX296_REG_16BIT(0x40d0)
-#define IMX296_SST_SIEASTA1PRE_2D IMX296_REG_16BIT(0x40d2)
-#define IMX296_HSST IMX296_REG_8BIT(0x40dc)
-#define IMX296_HSST_EN BIT(2)
-
-#define IMX296_CKREQSEL IMX296_REG_8BIT(0x4101)
-#define IMX296_CKREQSEL_HS BIT(2)
-#define IMX296_GTTABLENUM IMX296_REG_8BIT(0x4114)
-#define IMX296_CTRL418C IMX296_REG_8BIT(0x418c)
-
-#define IMX296_STANDBY_DELAY 1500
-#define IMX296_STREAM_ON_DELAY 2000
-#define IMX296_STREAM_OFF_DELAY 2000
-
-struct imx296_clk_params {
- unsigned int freq;
- u8 incksel[4];
- u8 ctrl418c;
-};
-
-static const struct imx296_clk_params imx296_clk_params[] = {
- { 37125000, { 0x80, 0x0b, 0x80, 0x08 }, 116 },
- { 54000000, { 0xb0, 0x0f, 0xb0, 0x0c }, 168 },
- { 74250000, { 0x80, 0x0f, 0x80, 0x0c }, 232 },
-};
-
-static const char * const imx296_supply_names[] = {
- "dvdd",
- "ovdd",
- "avdd",
-};
-
-struct imx296 {
- struct device *dev;
- struct clk *clk;
- struct regulator_bulk_data supplies[ARRAY_SIZE(imx296_supply_names)];
- struct gpio_desc *reset;
- struct regmap *regmap;
-
- const struct imx296_clk_params *clk_params;
- bool mono;
-
- bool streaming; /* Protected by ctrls.lock */
-
- struct v4l2_subdev subdev;
- struct media_pad pad;
-
- struct v4l2_ctrl_handler ctrls;
- struct v4l2_ctrl *hblank;
- struct v4l2_ctrl *vblank;
- struct v4l2_ctrl *exposure;
- struct v4l2_ctrl *vflip;
- struct v4l2_ctrl *hflip;
-
- struct mutex lock; /* Protects format and crop */
- struct v4l2_mbus_framefmt format;
- struct v4l2_rect crop;
-};
-
-static inline struct imx296 *to_imx296(struct v4l2_subdev *sd)
-{
- return container_of(sd, struct imx296, subdev);
-}
-
-static int imx296_read(struct imx296 *sensor, u32 addr)
-{
- u8 data[3] = { 0, 0, 0 };
- int ret;
-
- ret = regmap_raw_read(sensor->regmap, addr & IMX296_REG_ADDR_MASK, data,
- (addr >> IMX296_REG_SIZE_SHIFT) & 3);
- if (ret < 0)
- return ret;
-
- return (data[2] << 16) | (data[1] << 8) | data[0];
-}
-
-static int imx296_write(struct imx296 *sensor, u32 addr, u32 value, int *err)
-{
- u8 data[3] = { value & 0xff, (value >> 8) & 0xff, value >> 16 };
- int ret;
-
- if (err && *err)
- return *err;
-
- ret = regmap_raw_write(sensor->regmap, addr & IMX296_REG_ADDR_MASK,
- data, (addr >> IMX296_REG_SIZE_SHIFT) & 3);
- if (ret < 0) {
- dev_err(sensor->dev, "%u-bit write to 0x%04x failed: %d\n",
- ((addr >> IMX296_REG_SIZE_SHIFT) & 3) * 8,
- addr & IMX296_REG_ADDR_MASK, ret);
- if (err)
- *err = ret;
- }
-
- return ret;
-}
-
-/*
- * The supported formats.
- * This table MUST contain 4 entries per format, to cover the various flip
- * combinations in the order
- * - no flip
- * - h flip
- * - v flip
- * - h&v flips
- */
-static const u32 mbus_codes[] = {
- /* 10-bit modes. */
- MEDIA_BUS_FMT_SRGGB10_1X10,
- MEDIA_BUS_FMT_SGRBG10_1X10,
- MEDIA_BUS_FMT_SGBRG10_1X10,
- MEDIA_BUS_FMT_SBGGR10_1X10,
-};
-
-static u32 imx296_mbus_code(struct imx296 *sensor)
-{
- unsigned int i = 0;
-
- lockdep_assert_held(&sensor->lock);
-
- if (sensor->mono)
- return MEDIA_BUS_FMT_Y10_1X10;
-
- if (sensor->vflip && sensor->hflip)
- i = (sensor->vflip->val ? 2 : 0) | (sensor->hflip->val ? 1 : 0);
-
- return mbus_codes[i];
-}
-
-/* -----------------------------------------------------------------------------
- * Controls
- */
-
-static const char * const imx296_test_pattern_menu[] = {
- "Disabled",
- "Multiple Pixels",
- "Sequence 1",
- "Sequence 2",
- "Gradient",
- "Row",
- "Column",
- "Cross",
- "Stripe",
- "Checks",
-};
-
-static const s64 imx296_link_freq_menu[] = {
- 1188000000ULL,
-};
-
-static void imx296_adjust_exposure_range(struct imx296 *sensor,
- struct v4l2_ctrl *ctrl)
-{
- int exposure_max, exposure_def;
-
- /* Honour the new VBLANK limits when setting exposure */
- exposure_max = (sensor->format.height + sensor->vblank->val) - 4;
- exposure_def = min(exposure_max, sensor->exposure->val);
-
- __v4l2_ctrl_modify_range(sensor->exposure, sensor->exposure->minimum,
- exposure_max, sensor->exposure->step,
- exposure_def);
-}
-
-static int imx296_s_ctrl(struct v4l2_ctrl *ctrl)
-{
- struct imx296 *sensor = container_of(ctrl->handler, struct imx296, ctrls);
- unsigned int vmax;
- int ret = 0;
-
- if (ctrl->id == V4L2_CID_VBLANK) {
- /*
- * This control may change the limits of usable exposure, so
- * check and adjust if necessary.
- */
- imx296_adjust_exposure_range(sensor, ctrl);
- }
-
- if (!sensor->streaming)
- return 0;
-
- switch (ctrl->id) {
- case V4L2_CID_EXPOSURE:
- /* Clamp the exposure value to VMAX. */
- vmax = sensor->format.height + sensor->vblank->cur.val;
- ctrl->val = min_t(int, ctrl->val, vmax);
- imx296_write(sensor, IMX296_SHS1, vmax - ctrl->val, &ret);
- break;
-
- case V4L2_CID_ANALOGUE_GAIN:
- imx296_write(sensor, IMX296_GAIN, ctrl->val, &ret);
- break;
-
- case V4L2_CID_VBLANK:
- imx296_write(sensor, IMX296_VMAX,
- sensor->format.height + ctrl->val, &ret);
- break;
-
- case V4L2_CID_HFLIP:
- case V4L2_CID_VFLIP:
- imx296_write(sensor, IMX296_CTRL0E,
- sensor->vflip->val | (sensor->hflip->val << 1),
- &ret);
- break;
-
- case V4L2_CID_TEST_PATTERN:
- if (ctrl->val) {
- imx296_write(sensor, IMX296_PGHPOS, 8, &ret);
- imx296_write(sensor, IMX296_PGVPOS, 8, &ret);
- imx296_write(sensor, IMX296_PGHPSTEP, 8, &ret);
- imx296_write(sensor, IMX296_PGVPSTEP, 8, &ret);
- imx296_write(sensor, IMX296_PGHPNUM, 100, &ret);
- imx296_write(sensor, IMX296_PGVPNUM, 100, &ret);
- imx296_write(sensor, IMX296_PGDATA1, 0x300, &ret);
- imx296_write(sensor, IMX296_PGDATA2, 0x100, &ret);
- imx296_write(sensor, IMX296_PGHGSTEP, 0, &ret);
- imx296_write(sensor, IMX296_BLKLEVEL, 0, &ret);
- imx296_write(sensor, IMX296_BLKLEVELAUTO,
- IMX296_BLKLEVELAUTO_OFF, &ret);
- imx296_write(sensor, IMX296_PGCTRL,
- IMX296_PGCTRL_REGEN |
- IMX296_PGCTRL_CLKEN |
- IMX296_PGCTRL_MODE(ctrl->val - 1), &ret);
- } else {
- imx296_write(sensor, IMX296_PGCTRL,
- IMX296_PGCTRL_CLKEN, &ret);
- imx296_write(sensor, IMX296_BLKLEVEL, 0x3c, &ret);
- imx296_write(sensor, IMX296_BLKLEVELAUTO,
- IMX296_BLKLEVELAUTO_ON, &ret);
- }
- break;
-
- default:
- ret = -EINVAL;
- break;
- }
-
- return ret;
-}
-
-static const struct v4l2_ctrl_ops imx296_ctrl_ops = {
- .s_ctrl = imx296_s_ctrl,
-};
-
-static int imx296_ctrls_init(struct imx296 *sensor)
-{
- struct v4l2_fwnode_device_properties props;
- unsigned int hblank;
- int ret;
-
- ret = v4l2_fwnode_device_parse(sensor->dev, &props);
- if (ret < 0)
- return ret;
-
- v4l2_ctrl_handler_init(&sensor->ctrls, 12);
-
- sensor->exposure = v4l2_ctrl_new_std(&sensor->ctrls, &imx296_ctrl_ops,
- V4L2_CID_EXPOSURE, 1, 1048575, 1,
- 1104);
- v4l2_ctrl_new_std(&sensor->ctrls, &imx296_ctrl_ops,
- V4L2_CID_ANALOGUE_GAIN, IMX296_GAIN_MIN,
- IMX296_GAIN_MAX, 1, IMX296_GAIN_MIN);
-
- sensor->hflip = v4l2_ctrl_new_std(&sensor->ctrls, &imx296_ctrl_ops,
- V4L2_CID_HFLIP, 0, 1, 1, 0);
- if (sensor->hflip)
- sensor->hflip->flags |= V4L2_CTRL_FLAG_MODIFY_LAYOUT;
-
- sensor->vflip = v4l2_ctrl_new_std(&sensor->ctrls, &imx296_ctrl_ops,
- V4L2_CID_VFLIP, 0, 1, 1, 0);
- if (sensor->vflip)
- sensor->vflip->flags |= V4L2_CTRL_FLAG_MODIFY_LAYOUT;
-
- /*
- * Horizontal blanking is controlled through the HMAX register, which
- * contains a line length in INCK clock units. The INCK frequency is
- * fixed to 74.25 MHz. The HMAX value is currently fixed to 1100,
- * convert it to a number of pixels based on the nominal pixel rate.
- */
- hblank = 1100 * 1188000000ULL / 10 / 74250000
- - IMX296_PIXEL_ARRAY_WIDTH;
- sensor->hblank = v4l2_ctrl_new_std(&sensor->ctrls, &imx296_ctrl_ops,
- V4L2_CID_HBLANK, hblank, hblank, 1,
- hblank);
- if (sensor->hblank)
- sensor->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
-
- sensor->vblank = v4l2_ctrl_new_std(&sensor->ctrls, &imx296_ctrl_ops,
- V4L2_CID_VBLANK, 30,
- 1048575 - IMX296_PIXEL_ARRAY_HEIGHT,
- 1, 30);
- /*
- * The sensor calculates the MIPI timings internally to achieve a bit
- * rate between 1122 and 1198 Mbps. The exact value is unfortunately not
- * reported, at least according to the documentation. Report a nominal
- * rate of 1188 Mbps as that is used by the datasheet in multiple
- * examples.
- */
- v4l2_ctrl_new_std(&sensor->ctrls, NULL, V4L2_CID_PIXEL_RATE,
- 1122000000 / 10, 1198000000 / 10, 1, 1188000000 / 10);
- v4l2_ctrl_new_std_menu_items(&sensor->ctrls, &imx296_ctrl_ops,
- V4L2_CID_TEST_PATTERN,
- ARRAY_SIZE(imx296_test_pattern_menu) - 1,
- 0, 0, imx296_test_pattern_menu);
-
- v4l2_ctrl_new_int_menu(&sensor->ctrls, NULL, V4L2_CID_LINK_FREQ,
- ARRAY_SIZE(imx296_link_freq_menu) - 1, 0,
- imx296_link_freq_menu);
-
- v4l2_ctrl_new_fwnode_properties(&sensor->ctrls, &imx296_ctrl_ops,
- &props);
-
- if (sensor->ctrls.error) {
- dev_err(sensor->dev, "failed to add controls (%d)\n",
- sensor->ctrls.error);
- v4l2_ctrl_handler_free(&sensor->ctrls);
- return sensor->ctrls.error;
- }
-
- sensor->subdev.ctrl_handler = &sensor->ctrls;
-
- return 0;
-}
-
-/* -----------------------------------------------------------------------------
- * V4L2 Subdev Operations
- */
-
-/*
- * This table is extracted from vendor data that is entirely undocumented. The
- * first register write is required to activate the CSI-2 output. The other
- * entries may or may not be optional?
- */
-static const struct {
- unsigned int reg;
- unsigned int value;
-} imx296_init_table[] = {
- { IMX296_REG_8BIT(0x3005), 0xf0 },
- { IMX296_REG_8BIT(0x309e), 0x04 },
- { IMX296_REG_8BIT(0x30a0), 0x04 },
- { IMX296_REG_8BIT(0x30a1), 0x3c },
- { IMX296_REG_8BIT(0x30a4), 0x5f },
- { IMX296_REG_8BIT(0x30a8), 0x91 },
- { IMX296_REG_8BIT(0x30ac), 0x28 },
- { IMX296_REG_8BIT(0x30af), 0x09 },
- { IMX296_REG_8BIT(0x30df), 0x00 },
- { IMX296_REG_8BIT(0x3165), 0x00 },
- { IMX296_REG_8BIT(0x3169), 0x10 },
- { IMX296_REG_8BIT(0x316a), 0x02 },
- { IMX296_REG_8BIT(0x31c8), 0xf3 }, /* Exposure-related */
- { IMX296_REG_8BIT(0x31d0), 0xf4 }, /* Exposure-related */
- { IMX296_REG_8BIT(0x321a), 0x00 },
- { IMX296_REG_8BIT(0x3226), 0x02 },
- { IMX296_REG_8BIT(0x3256), 0x01 },
- { IMX296_REG_8BIT(0x3541), 0x72 },
- { IMX296_REG_8BIT(0x3516), 0x77 },
- { IMX296_REG_8BIT(0x350b), 0x7f },
- { IMX296_REG_8BIT(0x3758), 0xa3 },
- { IMX296_REG_8BIT(0x3759), 0x00 },
- { IMX296_REG_8BIT(0x375a), 0x85 },
- { IMX296_REG_8BIT(0x375b), 0x00 },
- { IMX296_REG_8BIT(0x3832), 0xf5 },
- { IMX296_REG_8BIT(0x3833), 0x00 },
- { IMX296_REG_8BIT(0x38a2), 0xf6 },
- { IMX296_REG_8BIT(0x38a3), 0x00 },
- { IMX296_REG_8BIT(0x3a00), 0x80 },
- { IMX296_REG_8BIT(0x3d48), 0xa3 },
- { IMX296_REG_8BIT(0x3d49), 0x00 },
- { IMX296_REG_8BIT(0x3d4a), 0x85 },
- { IMX296_REG_8BIT(0x3d4b), 0x00 },
- { IMX296_REG_8BIT(0x400e), 0x58 },
- { IMX296_REG_8BIT(0x4014), 0x1c },
- { IMX296_REG_8BIT(0x4041), 0x2a },
- { IMX296_REG_8BIT(0x40a2), 0x06 },
- { IMX296_REG_8BIT(0x40c1), 0xf6 },
- { IMX296_REG_8BIT(0x40c7), 0x0f },
- { IMX296_REG_8BIT(0x40c8), 0x00 },
- { IMX296_REG_8BIT(0x4174), 0x00 },
-};
-
-static int imx296_setup(struct imx296 *sensor)
-{
- const struct v4l2_mbus_framefmt *format = &sensor->format;
- const struct v4l2_rect *crop = &sensor->crop;
- unsigned int i;
- int ret = 0;
-
- for (i = 0; i < ARRAY_SIZE(imx296_init_table); ++i)
- imx296_write(sensor, imx296_init_table[i].reg,
- imx296_init_table[i].value, &ret);
-
- if (crop->width != IMX296_PIXEL_ARRAY_WIDTH ||
- crop->height != IMX296_PIXEL_ARRAY_HEIGHT) {
- imx296_write(sensor, IMX296_FID0_ROI,
- IMX296_FID0_ROIH1ON | IMX296_FID0_ROIV1ON, &ret);
- imx296_write(sensor, IMX296_FID0_ROIPH1, crop->left, &ret);
- imx296_write(sensor, IMX296_FID0_ROIPV1, crop->top, &ret);
- imx296_write(sensor, IMX296_FID0_ROIWH1, crop->width, &ret);
- imx296_write(sensor, IMX296_FID0_ROIWV1, crop->height, &ret);
- } else {
- imx296_write(sensor, IMX296_FID0_ROI, 0, &ret);
- }
-
- imx296_write(sensor, IMX296_CTRL0D,
- (crop->width != format->width ?
- IMX296_CTRL0D_HADD_ON_BINNING : 0) |
- (crop->height != format->height ?
- IMX296_CTRL0D_WINMODE_FD_BINNING : 0),
- &ret);
-
- /*
- * HMAX and VMAX configure horizontal and vertical blanking by
- * specifying the total line time and frame time respectively. The line
- * time is specified in operational clock units (which appears to be the
- * output of an internal PLL, fixed at 74.25 MHz regardless of the
- * exernal clock frequency), while the frame time is specified as a
- * number of lines.
- *
- * In the vertical direction the sensor outputs the following:
- *
- * - one line for the FS packet
- * - two lines of embedded data (DT 0x12)
- * - six null lines (DT 0x10)
- * - four lines of vertical effective optical black (DT 0x37)
- * - 8 to 1088 lines of active image data (RAW10, DT 0x2b)
- * - one line for the FE packet
- * - 16 or more lines of vertical blanking
- */
- imx296_write(sensor, IMX296_HMAX, 1100, &ret);
- imx296_write(sensor, IMX296_VMAX,
- format->height + sensor->vblank->cur.val, &ret);
-
- for (i = 0; i < ARRAY_SIZE(sensor->clk_params->incksel); ++i)
- imx296_write(sensor, IMX296_INCKSEL(i),
- sensor->clk_params->incksel[i], &ret);
- imx296_write(sensor, IMX296_GTTABLENUM, 0xc5, &ret);
- imx296_write(sensor, IMX296_CTRL418C, sensor->clk_params->ctrl418c,
- &ret);
-
- imx296_write(sensor, IMX296_GAINDLY, IMX296_GAINDLY_1FRAME, &ret);
- imx296_write(sensor, IMX296_BLKLEVEL, 0x03c, &ret);
-
- if (ret < 0)
- return ret;
-
- return __v4l2_ctrl_handler_setup(&sensor->ctrls);
-}
-
-static int imx296_stream_on(struct imx296 *sensor)
-{
- int ret = 0;
-
- imx296_write(sensor, IMX296_CTRL00, 0, &ret);
- usleep_range(IMX296_STREAM_ON_DELAY, 2*IMX296_STREAM_ON_DELAY);
- imx296_write(sensor, IMX296_CTRL0A, 0, &ret);
-
- /* vflip and hflip cannot change during streaming */
- __v4l2_ctrl_grab(sensor->vflip, 1);
- __v4l2_ctrl_grab(sensor->hflip, 1);
-
- return ret;
-}
-
-static int imx296_stream_off(struct imx296 *sensor)
-{
- int ret = 0;
-
- imx296_write(sensor, IMX296_CTRL0A, IMX296_CTRL0A_XMSTA, &ret);
- usleep_range(IMX296_STREAM_OFF_DELAY, 2*IMX296_STREAM_OFF_DELAY);
- imx296_write(sensor, IMX296_CTRL00, IMX296_CTRL00_STANDBY, &ret);
-
- __v4l2_ctrl_grab(sensor->vflip, 0);
- __v4l2_ctrl_grab(sensor->hflip, 0);
-
- return ret;
-}
-
-static int imx296_s_stream(struct v4l2_subdev *sd, int enable)
-{
- struct imx296 *sensor = to_imx296(sd);
- int ret;
-
- if (!enable) {
- ret = imx296_stream_off(sensor);
-
- pm_runtime_mark_last_busy(sensor->dev);
- pm_runtime_put_autosuspend(sensor->dev);
-
- mutex_lock(sensor->ctrls.lock);
- sensor->streaming = false;
- mutex_unlock(sensor->ctrls.lock);
-
- return ret;
- }
-
- mutex_lock(sensor->ctrls.lock);
-
- ret = pm_runtime_get_sync(sensor->dev);
- if (ret < 0)
- goto done;
-
- ret = imx296_setup(sensor);
- if (ret < 0)
- goto done;
-
- /*
- * Set streaming to true to ensure __v4l2_ctrl_handler_setup() will set
- * the controls. The flag is reset to false further down if an error
- * occurs.
- */
- sensor->streaming = true;
-
- ret = __v4l2_ctrl_handler_setup(&sensor->ctrls);
- if (ret < 0)
- goto done;
-
- ret = imx296_stream_on(sensor);
-
-done:
- if (ret < 0) {
- /*
- * In case of error, turn the power off synchronously as the
- * device likely has no other chance to recover.
- */
- pm_runtime_put_sync(sensor->dev);
- sensor->streaming = false;
- }
-
- mutex_unlock(sensor->ctrls.lock);
-
- return ret;
-}
-
-static int imx296_enum_mbus_code(struct v4l2_subdev *sd,
- struct v4l2_subdev_state *state,
- struct v4l2_subdev_mbus_code_enum *code)
-{
- struct imx296 *sensor = to_imx296(sd);
-
- if (code->index != 0)
- return -EINVAL;
-
- code->code = imx296_mbus_code(sensor);
-
- return 0;
-}
-
-static int imx296_enum_frame_size(struct v4l2_subdev *sd,
- struct v4l2_subdev_state *state,
- struct v4l2_subdev_frame_size_enum *fse)
-{
- struct imx296 *sensor = to_imx296(sd);
-
- if (fse->index >= 1 || fse->code != imx296_mbus_code(sensor))
- return -EINVAL;
-
- fse->min_width = IMX296_PIXEL_ARRAY_WIDTH / (fse->index + 1);
- fse->max_width = fse->min_width;
- fse->min_height = IMX296_PIXEL_ARRAY_HEIGHT / (fse->index + 1);
- fse->max_height = fse->min_height;
-
- return 0;
-}
-
-static struct v4l2_mbus_framefmt *
-imx296_get_pad_format(struct imx296 *sensor, struct v4l2_subdev_state *state,
- unsigned int pad, u32 which)
-{
- switch (which) {
- case V4L2_SUBDEV_FORMAT_TRY:
- return v4l2_subdev_get_try_format(&sensor->subdev, state, pad);
- case V4L2_SUBDEV_FORMAT_ACTIVE:
- return &sensor->format;
- default:
- return NULL;
- }
-}
-
-static struct v4l2_rect *
-imx296_get_pad_crop(struct imx296 *sensor, struct v4l2_subdev_state *state,
- unsigned int pad, u32 which)
-{
- switch (which) {
- case V4L2_SUBDEV_FORMAT_TRY:
- return v4l2_subdev_get_try_crop(&sensor->subdev, state, pad);
- case V4L2_SUBDEV_FORMAT_ACTIVE:
- return &sensor->crop;
- default:
- return NULL;
- }
-}
-
-static int imx296_get_format(struct v4l2_subdev *sd,
- struct v4l2_subdev_state *state,
- struct v4l2_subdev_format *fmt)
-{
- struct imx296 *sensor = to_imx296(sd);
-
- mutex_lock(&sensor->lock);
- fmt->format = *imx296_get_pad_format(sensor, state, fmt->pad,
- fmt->which);
- mutex_unlock(&sensor->lock);
-
- return 0;
-}
-
-static int imx296_set_format(struct v4l2_subdev *sd,
- struct v4l2_subdev_state *state,
- struct v4l2_subdev_format *fmt)
-{
- struct imx296 *sensor = to_imx296(sd);
- struct v4l2_mbus_framefmt *format;
- struct v4l2_rect *crop;
-
- crop = imx296_get_pad_crop(sensor, state, fmt->pad, fmt->which);
- format = imx296_get_pad_format(sensor, state, fmt->pad, fmt->which);
-
- mutex_lock(&sensor->lock);
-
- /*
- * Binning is only allowed when cropping is disabled according to the
- * documentation. This should be double-checked.
- */
- if (crop->width == IMX296_PIXEL_ARRAY_WIDTH &&
- crop->height == IMX296_PIXEL_ARRAY_HEIGHT) {
- unsigned int width;
- unsigned int height;
- unsigned int hratio;
- unsigned int vratio;
-
- /* Clamp the width and height to avoid dividing by zero. */
- width = clamp_t(unsigned int, fmt->format.width,
- crop->width / 2, crop->width);
- height = clamp_t(unsigned int, fmt->format.height,
- crop->height / 2, crop->height);
-
- hratio = DIV_ROUND_CLOSEST(crop->width, width);
- vratio = DIV_ROUND_CLOSEST(crop->height, height);
-
- format->width = crop->width / hratio;
- format->height = crop->height / vratio;
- } else {
- format->width = crop->width;
- format->height = crop->height;
- }
-
- format->code = imx296_mbus_code(sensor);
- format->field = V4L2_FIELD_NONE;
- format->colorspace = V4L2_COLORSPACE_RAW;
- format->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
- format->quantization = V4L2_QUANTIZATION_FULL_RANGE;
- format->xfer_func = V4L2_XFER_FUNC_NONE;
-
- fmt->format = *format;
-
- mutex_unlock(&sensor->lock);
-
- return 0;
-}
-
-static int imx296_get_selection(struct v4l2_subdev *sd,
- struct v4l2_subdev_state *state,
- struct v4l2_subdev_selection *sel)
-{
- struct imx296 *sensor = to_imx296(sd);
-
- switch (sel->target) {
- case V4L2_SEL_TGT_CROP:
- mutex_lock(&sensor->lock);
- sel->r = *imx296_get_pad_crop(sensor, state, sel->pad,
- sel->which);
- mutex_unlock(&sensor->lock);
- break;
-
- case V4L2_SEL_TGT_CROP_DEFAULT:
- case V4L2_SEL_TGT_CROP_BOUNDS:
- case V4L2_SEL_TGT_NATIVE_SIZE:
- sel->r.left = 0;
- sel->r.top = 0;
- sel->r.width = IMX296_PIXEL_ARRAY_WIDTH;
- sel->r.height = IMX296_PIXEL_ARRAY_HEIGHT;
- break;
-
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int imx296_set_selection(struct v4l2_subdev *sd,
- struct v4l2_subdev_state *state,
- struct v4l2_subdev_selection *sel)
-{
- struct imx296 *sensor = to_imx296(sd);
- struct v4l2_mbus_framefmt *format;
- struct v4l2_rect *crop;
- struct v4l2_rect rect;
-
- if (sel->target != V4L2_SEL_TGT_CROP)
- return -EINVAL;
-
- /*
- * Clamp the crop rectangle boundaries and align them to a multiple of 4
- * pixels to satisfy hardware requirements.
- */
- rect.left = clamp(ALIGN(sel->r.left, 4), 0,
- IMX296_PIXEL_ARRAY_WIDTH - IMX296_FID0_ROIWH1_MIN);
- rect.top = clamp(ALIGN(sel->r.top, 4), 0,
- IMX296_PIXEL_ARRAY_HEIGHT - IMX296_FID0_ROIWV1_MIN);
- rect.width = clamp_t(unsigned int, ALIGN(sel->r.width, 4),
- IMX296_FID0_ROIWH1_MIN, IMX296_PIXEL_ARRAY_WIDTH);
- rect.height = clamp_t(unsigned int, ALIGN(sel->r.height, 4),
- IMX296_FID0_ROIWV1_MIN, IMX296_PIXEL_ARRAY_HEIGHT);
-
- rect.width = min_t(unsigned int, rect.width,
- IMX296_PIXEL_ARRAY_WIDTH - rect.left);
- rect.height = min_t(unsigned int, rect.height,
- IMX296_PIXEL_ARRAY_HEIGHT - rect.top);
-
- crop = imx296_get_pad_crop(sensor, state, sel->pad, sel->which);
-
- mutex_lock(&sensor->lock);
-
- if (rect.width != crop->width || rect.height != crop->height) {
- /*
- * Reset the output image size if the crop rectangle size has
- * been modified.
- */
- format = imx296_get_pad_format(sensor, state, sel->pad,
- sel->which);
- format->width = rect.width;
- format->height = rect.height;
- }
-
- *crop = rect;
- sel->r = rect;
-
- mutex_unlock(&sensor->lock);
-
- return 0;
-}
-
-static int imx296_init_cfg(struct v4l2_subdev *sd,
- struct v4l2_subdev_state *state)
-{
- struct v4l2_subdev_selection sel = {
- .target = V4L2_SEL_TGT_CROP,
- .which = state ? V4L2_SUBDEV_FORMAT_TRY
- : V4L2_SUBDEV_FORMAT_ACTIVE,
- .r.width = IMX296_PIXEL_ARRAY_WIDTH,
- .r.height = IMX296_PIXEL_ARRAY_HEIGHT,
- };
- struct v4l2_subdev_format format = {
- .which = state ? V4L2_SUBDEV_FORMAT_TRY
- : V4L2_SUBDEV_FORMAT_ACTIVE,
- .format = {
- .width = IMX296_PIXEL_ARRAY_WIDTH,
- .height = IMX296_PIXEL_ARRAY_HEIGHT,
- },
- };
-
- imx296_set_selection(sd, state, &sel);
- imx296_set_format(sd, state, &format);
-
- return 0;
-}
-
-static const struct v4l2_subdev_video_ops imx296_subdev_video_ops = {
- .s_stream = imx296_s_stream,
-};
-
-static const struct v4l2_subdev_pad_ops imx296_subdev_pad_ops = {
- .enum_mbus_code = imx296_enum_mbus_code,
- .enum_frame_size = imx296_enum_frame_size,
- .get_fmt = imx296_get_format,
- .set_fmt = imx296_set_format,
- .get_selection = imx296_get_selection,
- .set_selection = imx296_set_selection,
- .init_cfg = imx296_init_cfg,
-};
-
-static const struct v4l2_subdev_ops imx296_subdev_ops = {
- .video = &imx296_subdev_video_ops,
- .pad = &imx296_subdev_pad_ops,
-};
-
-/* -----------------------------------------------------------------------------
- * Power management
- */
-
-static int imx296_power_on(struct imx296 *sensor)
-{
- int ret;
-
- ret = regulator_bulk_enable(ARRAY_SIZE(sensor->supplies),
- sensor->supplies);
- if (ret < 0)
- return ret;
-
- udelay(1);
-
- ret = gpiod_direction_output(sensor->reset, 0);
- if (ret < 0)
- goto err_supply;
-
- udelay(1);
-
- ret = clk_prepare_enable(sensor->clk);
- if (ret < 0)
- goto err_reset;
-
- /*
- * The documentation doesn't explicitly say how much time is required
- * after providing a clock and before starting I2C communication. It
- * mentions a delay of 20µs in 4-wire mode, but tests showed that a
- * delay of 100µs resulted in I2C communication failures, while 500µs
- * seems to be enough. Be conservative.
- */
- usleep_range(1000, 2000);
-
- return 0;
-
-err_reset:
- gpiod_direction_output(sensor->reset, 1);
-err_supply:
- regulator_bulk_disable(ARRAY_SIZE(sensor->supplies), sensor->supplies);
- return ret;
-}
-
-static void imx296_power_off(struct imx296 *sensor)
-{
- clk_disable_unprepare(sensor->clk);
- gpiod_direction_output(sensor->reset, 1);
- regulator_bulk_disable(ARRAY_SIZE(sensor->supplies), sensor->supplies);
-}
-
-static int __maybe_unused imx296_runtime_resume(struct device *dev)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct v4l2_subdev *subdev = i2c_get_clientdata(client);
- struct imx296 *sensor = to_imx296(subdev);
-
- return imx296_power_on(sensor);
-}
-
-static int __maybe_unused imx296_runtime_suspend(struct device *dev)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct v4l2_subdev *subdev = i2c_get_clientdata(client);
- struct imx296 *sensor = to_imx296(subdev);
-
- imx296_power_off(sensor);
-
- return 0;
-}
-
-static const struct dev_pm_ops imx296_pm_ops = {
- SET_RUNTIME_PM_OPS(imx296_runtime_suspend, imx296_runtime_resume, NULL)
-};
-
-/* -----------------------------------------------------------------------------
- * Probe & Remove
- */
-
-static int imx296_read_temperature(struct imx296 *sensor, int *temp)
-{
- int tmdout;
- int ret;
-
- ret = imx296_write(sensor, IMX296_TMDCTRL, IMX296_TMDCTRL_LATCH, NULL);
- if (ret < 0)
- return ret;
-
- tmdout = imx296_read(sensor, IMX296_TMDOUT) & IMX296_TMDOUT_MASK;
- if (tmdout < 0)
- return tmdout;
-
- /* T(°C) = 246.312 - 0.304 * TMDOUT */;
- *temp = 246312 - 304 * tmdout;
-
- return imx296_write(sensor, IMX296_TMDCTRL, 0, NULL);
-}
-
-static int imx296_identify_model(struct imx296 *sensor)
-{
- unsigned int model;
- int temp = 0;
- int ret;
-
- /*
- * While most registers can be read when the sensor is in standby, this
- * is not the case of the sensor info register :-(
- */
- ret = imx296_write(sensor, IMX296_CTRL00, 0, NULL);
- if (ret < 0) {
- dev_err(sensor->dev,
- "failed to get sensor out of standby (%d)\n", ret);
- return ret;
- }
-
- usleep_range(IMX296_STANDBY_DELAY, 2*IMX296_STANDBY_DELAY);
-
- ret = imx296_read(sensor, IMX296_SENSOR_INFO);
- if (ret < 0) {
- dev_err(sensor->dev, "failed to read sensor information (%d)\n",
- ret);
- goto done;
- }
-
- model = (ret >> 6) & 0x1ff;
-
- switch (model) {
- case 296:
- sensor->mono = ret & IMX296_SENSOR_INFO_MONO;
- break;
- /*
- * The IMX297 seems to share features with the IMX296, it may be
- * possible to support it in the same driver.
- */
- case 297:
- default:
- dev_err(sensor->dev, "invalid device model 0x%04x\n", ret);
- ret = -ENODEV;
- goto done;
- }
-
- ret = imx296_read_temperature(sensor, &temp);
- if (ret < 0)
- goto done;
-
- dev_info(sensor->dev, "found IMX%u%s (%u.%uC)\n", model,
- sensor->mono ? "LL" : "LQ", temp / 1000, (temp / 100) % 10);
-
-done:
- imx296_write(sensor, IMX296_CTRL00, IMX296_CTRL00_STANDBY, NULL);
- return ret;
-}
-
-static const struct regmap_config imx296_regmap_config = {
- .reg_bits = 16,
- .val_bits = 8,
-
- .wr_table = &(const struct regmap_access_table) {
- .no_ranges = (const struct regmap_range[]) {
- {
- .range_min = IMX296_SENSOR_INFO & 0xffff,
- .range_max = (IMX296_SENSOR_INFO & 0xffff) + 1,
- },
- },
- .n_no_ranges = 1,
- },
-};
-
-static int imx296_probe(struct i2c_client *client)
-{
- struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
- unsigned long clk_rate;
- struct imx296 *sensor;
- unsigned int i;
- int ret;
-
- if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
- dev_warn(&adapter->dev,
- "I2C-Adapter doesn't support I2C_FUNC_SMBUS_BYTE\n");
- return -EIO;
- }
-
- sensor = devm_kzalloc(&client->dev, sizeof(*sensor), GFP_KERNEL);
- if (!sensor)
- return -ENOMEM;
-
- sensor->dev = &client->dev;
-
- mutex_init(&sensor->lock);
-
- /* Acquire resources. */
- for (i = 0; i < ARRAY_SIZE(sensor->supplies); ++i)
- sensor->supplies[i].supply = imx296_supply_names[i];
-
- ret = devm_regulator_bulk_get(sensor->dev, ARRAY_SIZE(sensor->supplies),
- sensor->supplies);
- if (ret) {
- dev_err_probe(sensor->dev, ret, "failed to get supplies\n");
- goto err_mutex;
- }
-
- sensor->reset = devm_gpiod_get_optional(sensor->dev, "reset",
- GPIOD_OUT_HIGH);
- if (IS_ERR(sensor->reset)) {
- ret = PTR_ERR(sensor->reset);
- dev_err_probe(sensor->dev, ret, "failed to get reset GPIO\n");
- goto err_mutex;
- }
-
- sensor->clk = devm_clk_get(sensor->dev, "inck");
- if (IS_ERR(sensor->clk)) {
- ret = PTR_ERR(sensor->clk);
- dev_err_probe(sensor->dev, ret, "failed to get clock\n");
- goto err_mutex;
- }
-
- clk_rate = clk_get_rate(sensor->clk);
- for (i = 0; i < ARRAY_SIZE(imx296_clk_params); ++i) {
- if (clk_rate == imx296_clk_params[i].freq) {
- sensor->clk_params = &imx296_clk_params[i];
- break;
- }
- }
-
- if (!sensor->clk_params) {
- dev_err(sensor->dev, "unsupported clock rate %lu\n", clk_rate);
- ret = -EINVAL;
- goto err_mutex;
- }
-
- sensor->regmap = devm_regmap_init_i2c(client, &imx296_regmap_config);
- if (IS_ERR(sensor->regmap)) {
- ret = PTR_ERR(sensor->regmap);
- goto err_mutex;
- }
-
- /*
- * Enable power management. The driver supports runtime PM, but needs to
- * work when runtime PM is disabled in the kernel. To that end, power
- * the sensor on manually here, identify it, and fully initialize it.
- */
- ret = imx296_power_on(sensor);
- if (ret < 0)
- goto err_mutex;
-
- ret = imx296_identify_model(sensor);
- if (ret < 0)
- goto err_power;
-
- /* Initialize the V4L2 subdev, controls and media entity. */
- v4l2_i2c_subdev_init(&sensor->subdev, client, &imx296_subdev_ops);
-
- ret = imx296_ctrls_init(sensor);
- if (ret < 0)
- goto err_power;
-
- sensor->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
- sensor->pad.flags = MEDIA_PAD_FL_SOURCE;
- sensor->subdev.entity.function = MEDIA_ENT_F_CAM_SENSOR;
- ret = media_entity_pads_init(&sensor->subdev.entity, 1, &sensor->pad);
- if (ret < 0)
- goto err_ctrls;
-
- imx296_init_cfg(&sensor->subdev, NULL);
-
- /*
- * Enable runtime PM. As the device has been powered manually, mark it
- * as active, and increase the usage count without resuming the device.
- */
- pm_runtime_set_active(sensor->dev);
- pm_runtime_get_noresume(sensor->dev);
- pm_runtime_enable(sensor->dev);
-
- ret = v4l2_async_register_subdev(&sensor->subdev);
- if (ret < 0)
- goto err_pm;
-
- /*
- * Finally, enable autosuspend and decrease the usage count. The device
- * will get suspended after the autosuspend delay, turning the power
- * off.
- */
- pm_runtime_set_autosuspend_delay(sensor->dev, 1000);
- pm_runtime_use_autosuspend(sensor->dev);
- pm_runtime_put_autosuspend(sensor->dev);
-
- return 0;
-
-err_pm:
- pm_runtime_disable(sensor->dev);
- pm_runtime_put_noidle(sensor->dev);
- media_entity_cleanup(&sensor->subdev.entity);
-err_ctrls:
- v4l2_ctrl_handler_free(&sensor->ctrls);
-err_power:
- imx296_power_off(sensor);
-err_mutex:
- mutex_destroy(&sensor->lock);
- return ret;
-}
-
-static void imx296_remove(struct i2c_client *client)
-{
- struct v4l2_subdev *subdev = i2c_get_clientdata(client);
- struct imx296 *sensor = to_imx296(subdev);
-
- v4l2_async_unregister_subdev(subdev);
- media_entity_cleanup(&subdev->entity);
- v4l2_ctrl_handler_free(&sensor->ctrls);
-
- /*
- * Disable runtime PM. In case runtime PM is disabled in the kernel,
- * make sure to turn power off manually.
- */
- pm_runtime_disable(sensor->dev);
- if (!pm_runtime_status_suspended(sensor->dev))
- imx296_power_off(sensor);
- pm_runtime_set_suspended(sensor->dev);
-
- mutex_destroy(&sensor->lock);
-}
-
-static const struct of_device_id imx296_of_match[] = {
- { .compatible = "sony,imx296" },
- { /* sentinel */ },
-};
-MODULE_DEVICE_TABLE(of, imx296_of_match);
-
-static struct i2c_driver imx296_i2c_driver = {
- .driver = {
- .of_match_table = imx296_of_match,
- .name = "imx296",
- .pm = &imx296_pm_ops
- },
- .probe_new = imx296_probe,
- .remove = imx296_remove,
-};
-
-module_i2c_driver(imx296_i2c_driver);
-
-MODULE_DESCRIPTION("Sony IMX296 Camera driver");
-MODULE_AUTHOR("Laurent Pinchart <laurent.pinchart@ideasonboard.com>");
-MODULE_LICENSE("GPL v2");
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