From patchwork Thu Sep 8 13:34:44 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Deepthy Ravi X-Patchwork-Id: 1129732 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.4) with ESMTP id p88DaG7K002138 for ; Thu, 8 Sep 2011 13:36:17 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932876Ab1IHNfE (ORCPT ); Thu, 8 Sep 2011 09:35:04 -0400 Received: from comal.ext.ti.com ([198.47.26.152]:40362 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932843Ab1IHNfD (ORCPT ); Thu, 8 Sep 2011 09:35:03 -0400 Received: from dbdp20.itg.ti.com ([172.24.170.38]) by comal.ext.ti.com (8.13.7/8.13.7) with ESMTP id p88DYi3n014928 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 8 Sep 2011 08:34:47 -0500 Received: from dbde70.ent.ti.com (localhost [127.0.0.1]) by dbdp20.itg.ti.com (8.13.8/8.13.8) with ESMTP id p88DYiD6001741; Thu, 8 Sep 2011 19:04:44 +0530 (IST) Received: from dbdp31.itg.ti.com (172.24.170.98) by DBDE70.ent.ti.com (172.24.170.148) with Microsoft SMTP Server id 8.3.106.1; Thu, 8 Sep 2011 19:04:44 +0530 Received: from localhost.localdomain (dbdp20.itg.ti.com [172.24.170.38]) by dbdp31.itg.ti.com (8.13.8/8.13.8) with ESMTP id p88DYiYp027120; Thu, 8 Sep 2011 19:04:44 +0530 (IST) From: Deepthy Ravi To: CC: , , , , , , , , Vaibhav Hiremath , Deepthy Ravi Subject: [PATCH 2/8] omap3evm: Add Camera board init/hookup file Date: Thu, 8 Sep 2011 19:04:44 +0530 Message-ID: <1315488884-16068-1-git-send-email-deepthy.ravi@ti.com> X-Mailer: git-send-email 1.6.2.4 MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter1.kernel.org [140.211.167.41]); Thu, 08 Sep 2011 13:36:17 +0000 (UTC) From: Vaibhav Hiremath In OMAP3EVM Rev G, TVP5146 video decoder is populated on the main board. This decoder is registered as a subdevice to the media-controller/omap3isp. Signed-off-by: Vaibhav Hiremath Signed-off-by: Deepthy Ravi --- arch/arm/mach-omap2/Makefile | 5 + arch/arm/mach-omap2/board-omap3evm-camera.c | 253 +++++++++++++++++++++++++++ arch/arm/mach-omap2/board-omap3evm.c | 4 + include/media/tvp514x.h | 3 + 4 files changed, 265 insertions(+), 0 deletions(-) create mode 100644 arch/arm/mach-omap2/board-omap3evm-camera.c diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index e43d94b..66ac9fe 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -272,3 +272,8 @@ disp-$(CONFIG_OMAP2_DSS) := display.o obj-y += $(disp-m) $(disp-y) obj-y += common-board-devices.o twl-common.o + +ifeq ($(CONFIG_MACH_OMAP3EVM),y) +evm-camera-$(CONFIG_VIDEO_OMAP3) := board-omap3evm-camera.o +obj-y += $(evm-camera-m) $(evm-camera-y) +endif diff --git a/arch/arm/mach-omap2/board-omap3evm-camera.c b/arch/arm/mach-omap2/board-omap3evm-camera.c new file mode 100644 index 0000000..718dd6d --- /dev/null +++ b/arch/arm/mach-omap2/board-omap3evm-camera.c @@ -0,0 +1,253 @@ +/* + * arch/arm/mach-omap2/board-omap3evm-camera.c + * + * OMAP3EVM: Driver for TVP5146 module + * + * Copyright (C) 2011 Texas Instruments Inc + * Author: Vaibhav Hiremath + * + * This package 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., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "devices.h" + +#define CAM_USE_XCLKA 0 + +#define TVP5146_DEC_RST 98 +#define T2_GPIO_2 194 +#define nCAM_VD_SEL 157 +#define nCAM_VD_EN 200 + +static struct regulator *omap3evm_1v8; +static struct regulator *omap3evm_2v8; + + +/* mux id to enable/disable signal routing to different peripherals */ +enum omap3evm_cam_mux { + MUX_EN_TVP5146 = 0, + MUX_EN_CAMERA_SENSOR, + MUX_EN_EXP_CAMERA_SENSOR, + MUX_INVALID, +}; + +static int omap3evm_regulator_ctrl(u32 on) +{ + if (!omap3evm_1v8 || !omap3evm_2v8) { + printk(KERN_ERR "No regulator available\n"); + return -ENODEV; + } + if (on) { + regulator_enable(omap3evm_1v8); + mdelay(1); + regulator_enable(omap3evm_2v8); + mdelay(50); + } else { + if (regulator_is_enabled(omap3evm_1v8)) + regulator_disable(omap3evm_1v8); + if (regulator_is_enabled(omap3evm_2v8)) + regulator_disable(omap3evm_2v8); + } + return 0; +} +/** + * @brief omap3evm_set_mux - Sets mux to enable/disable signal routing to + * different peripherals present on new EVM board + * + * @param mux_id - enum, mux id to enable/disable + * @param value - enum, ENABLE_MUX for enabling and DISABLE_MUX for disabling + * + */ +static void omap3evm_set_mux(enum omap3evm_cam_mux mux_id) +{ + switch (mux_id) { + /* + * JP1 jumper need to configure to choose between on-board + * camera sensor conn and on-board LI-3MC02 camera sensor. + */ + case MUX_EN_CAMERA_SENSOR: + /* Set nCAM_VD_EN (T2_GPIO8) = 0 */ + gpio_set_value_cansleep(nCAM_VD_EN, 0); + /* Set nCAM_VD_SEL (GPIO157) = 0 */ + gpio_set_value(nCAM_VD_SEL, 0); + break; + case MUX_EN_EXP_CAMERA_SENSOR: + /* Set nCAM_VD_EN (T2_GPIO8) = 1 */ + gpio_set_value_cansleep(nCAM_VD_EN, 1); + break; + case MUX_EN_TVP5146: + default: + /* Set nCAM_VD_EN (T2_GPIO8) = 0 */ + gpio_set_value_cansleep(nCAM_VD_EN, 0); + /* Set nCAM_VD_SEL (GPIO157) = 1 */ + gpio_set_value(nCAM_VD_SEL, 1); + break; + } +} + +/* TVP5146: Video Decoder */ +static int omap3evm_tvp514x_s_power(struct v4l2_subdev *subdev, u32 on) +{ + int ret; + ret = omap3evm_regulator_ctrl(on); + if (ret) + return ret; + omap3evm_set_mux(MUX_EN_TVP5146); + return 0; +} + +static struct tvp514x_platform_data omap3evm_tvp514x_platform_data = { + .s_power = omap3evm_tvp514x_s_power, +}; + +#define TVP514X_I2C_BUS_NUM 3 + +static struct i2c_board_info omap3evm_camera_i2c_devices[] = { + { + I2C_BOARD_INFO("tvp5146m2", 0x5C), + .platform_data = &omap3evm_tvp514x_platform_data, + }, +}; +static struct isp_subdev_i2c_board_info omap3evm_tvp514x_subdevs[] = { + { + .board_info = &omap3evm_camera_i2c_devices[0], + .i2c_adapter_id = TVP514X_I2C_BUS_NUM, + }, + { NULL, 0 }, +}; + +static struct isp_v4l2_subdevs_group omap3evm_camera_subdevs[] = { + { + .subdevs = omap3evm_tvp514x_subdevs, + .interface = ISP_INTERFACE_PARALLEL, + .bus = { + .parallel = { + .data_lane_shift = 1, + .clk_pol = 0, + .bridge = 0, + }, + } + }, + { NULL, 0 }, +}; + +static struct isp_platform_data omap3evm_isp_platform_data = { + .subdevs = omap3evm_camera_subdevs, +}; + +static int __init omap3evm_cam_init(void) +{ + int ret = 0; + + /* + * Regulator supply required for camera interface + */ + omap3evm_1v8 = regulator_get(NULL, "cam_1v8"); + if (IS_ERR(omap3evm_1v8)) { + printk(KERN_ERR "cam_1v8 regulator missing\n"); + return PTR_ERR(omap3evm_1v8); + } + omap3evm_2v8 = regulator_get(NULL, "cam_2v8"); + if (IS_ERR(omap3evm_2v8)) { + printk(KERN_ERR "cam_2v8 regulator missing\n"); + ret = PTR_ERR(omap3evm_2v8); + goto err_1; + } + + /* + * First level GPIO enable: T2_GPIO.2 + */ + ret = gpio_request(T2_GPIO_2, "T2_GPIO.2"); + if (ret) { + printk(KERN_ERR "failed to get t2_gpio.2\n"); + goto err_2; + } + gpio_direction_output(T2_GPIO_2, 0); + + /* + * nCAM_VD_SEL (GPIO157) + */ + ret = gpio_request(nCAM_VD_SEL, "cam_vd_sel"); + if (ret) { + printk(KERN_ERR "failed to get cam_vd_sel\n"); + goto err_3; + } + gpio_direction_output(nCAM_VD_SEL, 1); + + /* + * EXP_nCAM_VD_EN (T2_GPIO.8) + */ + ret = gpio_request(nCAM_VD_EN, "cam_vd_en"); + if (ret) { + printk(KERN_ERR "failed to get cam_vd_en\n"); + goto err_4; + } + gpio_direction_output(nCAM_VD_EN, 0); + + ret = gpio_request(TVP5146_DEC_RST, "vid-dec reset"); + if (ret) { + printk(KERN_ERR "failed to get GPIO98_VID_DEC_RES\n"); + goto err_5; + } + /* Assert the reset signal */ + gpio_direction_output(TVP5146_DEC_RST, 0); + mdelay(5); + gpio_set_value(TVP5146_DEC_RST, 1); + + omap3_init_camera(&omap3evm_isp_platform_data); + + printk(KERN_INFO "omap3evm camera init done successfully...\n"); + return 0; +err_5: + gpio_free(nCAM_VD_EN); +err_4: + gpio_free(nCAM_VD_SEL); +err_3: + gpio_free(T2_GPIO_2); +err_2: + regulator_put(omap3evm_2v8); +err_1: + regulator_put(omap3evm_1v8); + + return ret; +} + +static void __exit omap3evm_cam_exit(void) +{ + gpio_free(nCAM_VD_EN); + gpio_free(nCAM_VD_SEL); + gpio_free(T2_GPIO_2); + + if (regulator_is_enabled(omap3evm_1v8)) + regulator_disable(omap3evm_1v8); + regulator_put(omap3evm_1v8); + if (regulator_is_enabled(omap3evm_2v8)) + regulator_disable(omap3evm_2v8); + regulator_put(omap3evm_2v8); +} + +module_init(omap3evm_cam_init); +module_exit(omap3evm_cam_exit); + +MODULE_AUTHOR("Texas Instruments"); +MODULE_DESCRIPTION("OMAP3EVM: Driver for TVP5146 module"); +MODULE_LICENSE("GPL"); diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c index 8333ee4..5c25c86 100644 --- a/arch/arm/mach-omap2/board-omap3evm.c +++ b/arch/arm/mach-omap2/board-omap3evm.c @@ -585,6 +585,8 @@ static struct omap_board_mux omap35x_board_mux[] __initdata = { OMAP_PIN_OFF_NONE), OMAP3_MUX(GPMC_WAIT2, OMAP_MUX_MODE4 | OMAP_PIN_INPUT_PULLUP | OMAP_PIN_OFF_NONE), + OMAP3_MUX(MCBSP1_FSR, OMAP_MUX_MODE4 | OMAP_PIN_INPUT_PULLDOWN | + OMAP_PIN_OFF_NONE), #ifdef CONFIG_WL12XX_PLATFORM_DATA /* WLAN IRQ - GPIO 149 */ OMAP3_MUX(UART1_RTS, OMAP_MUX_MODE4 | OMAP_PIN_INPUT), @@ -610,6 +612,8 @@ static struct omap_board_mux omap36x_board_mux[] __initdata = { OMAP3_MUX(MCSPI1_CS1, OMAP_MUX_MODE4 | OMAP_PIN_INPUT_PULLUP | OMAP_PIN_OFF_INPUT_PULLUP | OMAP_PIN_OFF_OUTPUT_LOW | OMAP_PIN_OFF_WAKEUPENABLE), + OMAP3_MUX(MCBSP1_FSR, OMAP_MUX_MODE4 | OMAP_PIN_INPUT_PULLDOWN | + OMAP_PIN_OFF_NONE), /* AM/DM37x EVM: DSS data bus muxed with sys_boot */ OMAP3_MUX(DSS_DATA18, OMAP_MUX_MODE3 | OMAP_PIN_OFF_NONE), OMAP3_MUX(DSS_DATA19, OMAP_MUX_MODE3 | OMAP_PIN_OFF_NONE), diff --git a/include/media/tvp514x.h b/include/media/tvp514x.h index 74387e8..754b33e 100644 --- a/include/media/tvp514x.h +++ b/include/media/tvp514x.h @@ -29,6 +29,8 @@ #ifndef _TVP514X_H #define _TVP514X_H +#include + /* * Other macros */ @@ -104,6 +106,7 @@ enum tvp514x_output { * @ vs_polarity: VSYNC Polarity configuration for current interface. */ struct tvp514x_platform_data { + int (*s_power) (struct v4l2_subdev *subdev, u32 on); /* Interface control params */ bool clk_polarity; bool hs_polarity;