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Message-Id: <1527525431-22852-6-git-send-email-jacopo+renesas@jmondi.org>
Date: Mon, 28 May 2018 18:37:11 +0200
From: Jacopo Mondi <jacopo+renesas@...ndi.org>
To: hverkuil@...all.nl, laurent.pinchart@...asonboard.com,
sakari.ailus@....fi, mchehab@...nel.org,
ysato@...rs.sourceforge.jp, dalias@...c.org
Cc: Jacopo Mondi <jacopo+renesas@...ndi.org>,
linux-renesas-soc@...r.kernel.org, linux-media@...r.kernel.org,
linux-sh@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 5/5] arch: sh: ap325rxa: Use new renesas-ceu camera driver
Use the new renesas-ceu camera driver in ap325rxa board file instead of
the soc_camera based sh_mobile_ceu_camera driver.
Get rid of soc_camera specific components, and register CEU0 with a single
video sensor (ov7725).
Memory for the CEU video buffers is now reserved with membocks APIs
and need to be declared as dma_coherent during machine initialization to
remove that architecture specific part from CEU driver.
The ap325rxa board file registers another camera (ncm03j) for which I found no
driver in mainline kernel version, and that was configured/probed by sending
i2c messages (of 'magic blobs) from the board file itself. I removed the
sensor registration from this new version as it used soc_camera components
that will be later removed.
While at there update license to SPDX header and sort headers alphabetically.
Compile tested only.
Signed-off-by: Jacopo Mondi <jacopo+renesas@...ndi.org>
---
arch/sh/boards/mach-ap325rxa/setup.c | 282 +++++++++------------------------
arch/sh/kernel/cpu/sh4a/clock-sh7723.c | 2 +-
2 files changed, 80 insertions(+), 204 deletions(-)
diff --git a/arch/sh/boards/mach-ap325rxa/setup.c b/arch/sh/boards/mach-ap325rxa/setup.c
index de8393c..8f234d04 100644
--- a/arch/sh/boards/mach-ap325rxa/setup.c
+++ b/arch/sh/boards/mach-ap325rxa/setup.c
@@ -1,40 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Renesas - AP-325RXA
* (Compatible with Algo System ., LTD. - AP-320A)
*
* Copyright (C) 2008 Renesas Solutions Corp.
* Author : Yusuke Goda <goda.yuske@...esas.com>
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
*/
-#include <linux/init.h>
+#include <asm/clock.h>
+#include <asm/io.h>
+#include <asm/suspend.h>
+
+#include <cpu/sh7723.h>
+
+#include <linux/clkdev.h>
+#include <linux/delay.h>
#include <linux/device.h>
+#include <linux/gpio.h>
+#include <linux/gpio/machine.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
#include <linux/interrupt.h>
-#include <linux/platform_device.h>
+#include <linux/memblock.h>
+#include <linux/mfd/tmio.h>
#include <linux/mmc/host.h>
#include <linux/mtd/physmap.h>
#include <linux/mtd/sh_flctl.h>
-#include <linux/mfd/tmio.h>
-#include <linux/delay.h>
-#include <linux/i2c.h>
+#include <linux/platform_device.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
+#include <linux/sh_intc.h>
#include <linux/smsc911x.h>
-#include <linux/gpio.h>
#include <linux/videodev2.h>
-#include <linux/sh_intc.h>
+
+#include <media/drv-intf/renesas-ceu.h>
#include <media/i2c/ov772x.h>
-#include <media/soc_camera.h>
-#include <linux/platform_data/media/soc_camera_platform.h>
-#include <media/drv-intf/sh_mobile_ceu.h>
+
#include <video/sh_mobile_lcdc.h>
-#include <asm/io.h>
-#include <asm/clock.h>
-#include <asm/suspend.h>
-#include <cpu/sh7723.h>
+
+#define CEU_BUFFER_MEMORY_SIZE (4 << 20)
+static phys_addr_t ceu_dma_membase;
/* Dummy supplies, where voltage doesn't matter */
static struct regulator_consumer_supply dummy_supplies[] = {
@@ -253,150 +258,25 @@ static struct platform_device lcdc_device = {
},
};
-static void camera_power(int val)
-{
- gpio_set_value(GPIO_PTZ5, val); /* RST_CAM/RSTB */
- mdelay(10);
-}
-
-#ifdef CONFIG_I2C
-/* support for the old ncm03j camera */
-static unsigned char camera_ncm03j_magic[] =
-{
- 0x87, 0x00, 0x88, 0x08, 0x89, 0x01, 0x8A, 0xE8,
- 0x1D, 0x00, 0x1E, 0x8A, 0x21, 0x00, 0x33, 0x36,
- 0x36, 0x60, 0x37, 0x08, 0x3B, 0x31, 0x44, 0x0F,
- 0x46, 0xF0, 0x4B, 0x28, 0x4C, 0x21, 0x4D, 0x55,
- 0x4E, 0x1B, 0x4F, 0xC7, 0x50, 0xFC, 0x51, 0x12,
- 0x58, 0x02, 0x66, 0xC0, 0x67, 0x46, 0x6B, 0xA0,
- 0x6C, 0x34, 0x7E, 0x25, 0x7F, 0x25, 0x8D, 0x0F,
- 0x92, 0x40, 0x93, 0x04, 0x94, 0x26, 0x95, 0x0A,
- 0x99, 0x03, 0x9A, 0xF0, 0x9B, 0x14, 0x9D, 0x7A,
- 0xC5, 0x02, 0xD6, 0x07, 0x59, 0x00, 0x5A, 0x1A,
- 0x5B, 0x2A, 0x5C, 0x37, 0x5D, 0x42, 0x5E, 0x56,
- 0xC8, 0x00, 0xC9, 0x1A, 0xCA, 0x2A, 0xCB, 0x37,
- 0xCC, 0x42, 0xCD, 0x56, 0xCE, 0x00, 0xCF, 0x1A,
- 0xD0, 0x2A, 0xD1, 0x37, 0xD2, 0x42, 0xD3, 0x56,
- 0x5F, 0x68, 0x60, 0x87, 0x61, 0xA3, 0x62, 0xBC,
- 0x63, 0xD4, 0x64, 0xEA, 0xD6, 0x0F,
-};
-
-static int camera_probe(void)
-{
- struct i2c_adapter *a = i2c_get_adapter(0);
- struct i2c_msg msg;
- int ret;
-
- if (!a)
- return -ENODEV;
-
- camera_power(1);
- msg.addr = 0x6e;
- msg.buf = camera_ncm03j_magic;
- msg.len = 2;
- msg.flags = 0;
- ret = i2c_transfer(a, &msg, 1);
- camera_power(0);
-
- return ret;
-}
-
-static int camera_set_capture(struct soc_camera_platform_info *info,
- int enable)
-{
- struct i2c_adapter *a = i2c_get_adapter(0);
- struct i2c_msg msg;
- int ret = 0;
- int i;
-
- camera_power(0);
- if (!enable)
- return 0; /* no disable for now */
-
- camera_power(1);
- for (i = 0; i < ARRAY_SIZE(camera_ncm03j_magic); i += 2) {
- u_int8_t buf[8];
-
- msg.addr = 0x6e;
- msg.buf = buf;
- msg.len = 2;
- msg.flags = 0;
-
- buf[0] = camera_ncm03j_magic[i];
- buf[1] = camera_ncm03j_magic[i + 1];
-
- ret = (ret < 0) ? ret : i2c_transfer(a, &msg, 1);
- }
-
- return ret;
-}
-
-static int ap325rxa_camera_add(struct soc_camera_device *icd);
-static void ap325rxa_camera_del(struct soc_camera_device *icd);
-
-static struct soc_camera_platform_info camera_info = {
- .format_name = "UYVY",
- .format_depth = 16,
- .format = {
- .code = MEDIA_BUS_FMT_UYVY8_2X8,
- .colorspace = V4L2_COLORSPACE_SMPTE170M,
- .field = V4L2_FIELD_NONE,
- .width = 640,
- .height = 480,
+/* Powerdown/reset gpios for CEU image sensors */
+static struct gpiod_lookup_table ov7725_gpios = {
+ .dev_id = "0-0021",
+ .table = {
+ GPIO_LOOKUP("sh7723_pfc", GPIO_PTZ5, "reset", GPIO_ACTIVE_LOW),
},
- .mbus_param = V4L2_MBUS_PCLK_SAMPLE_RISING | V4L2_MBUS_MASTER |
- V4L2_MBUS_VSYNC_ACTIVE_HIGH | V4L2_MBUS_HSYNC_ACTIVE_HIGH |
- V4L2_MBUS_DATA_ACTIVE_HIGH,
- .mbus_type = V4L2_MBUS_PARALLEL,
- .set_capture = camera_set_capture,
-};
-
-static struct soc_camera_link camera_link = {
- .bus_id = 0,
- .add_device = ap325rxa_camera_add,
- .del_device = ap325rxa_camera_del,
- .module_name = "soc_camera_platform",
- .priv = &camera_info,
};
-static struct platform_device *camera_device;
-
-static void ap325rxa_camera_release(struct device *dev)
-{
- soc_camera_platform_release(&camera_device);
-}
-
-static int ap325rxa_camera_add(struct soc_camera_device *icd)
-{
- int ret = soc_camera_platform_add(icd, &camera_device, &camera_link,
- ap325rxa_camera_release, 0);
- if (ret < 0)
- return ret;
-
- ret = camera_probe();
- if (ret < 0)
- soc_camera_platform_del(icd, camera_device, &camera_link);
-
- return ret;
-}
-
-static void ap325rxa_camera_del(struct soc_camera_device *icd)
-{
- soc_camera_platform_del(icd, camera_device, &camera_link);
-}
-#endif /* CONFIG_I2C */
-
-static int ov7725_power(struct device *dev, int mode)
-{
- camera_power(0);
- if (mode)
- camera_power(1);
-
- return 0;
-}
-
-static struct sh_mobile_ceu_info sh_mobile_ceu_info = {
- .flags = SH_CEU_FLAG_USE_8BIT_BUS,
+static struct ceu_platform_data ceu0_pdata = {
+ .num_subdevs = 1,
+ .subdevs = {
+ { /* [0] = ov7725 */
+ .flags = 0,
+ .bus_width = 8,
+ .bus_shift = 0,
+ .i2c_adapter_id = 0,
+ .i2c_address = 0x21,
+ },
+ },
};
static struct resource ceu_resources[] = {
@@ -410,18 +290,15 @@ static struct resource ceu_resources[] = {
.start = evt2irq(0x880),
.flags = IORESOURCE_IRQ,
},
- [2] = {
- /* place holder for contiguous memory */
- },
};
-static struct platform_device ceu_device = {
- .name = "sh_mobile_ceu",
- .id = 0, /* "ceu0" clock */
+static struct platform_device ap325rxa_ceu_device = {
+ .name = "renesas-ceu",
+ .id = 0, /* "ceu.0" clock */
.num_resources = ARRAY_SIZE(ceu_resources),
.resource = ceu_resources,
.dev = {
- .platform_data = &sh_mobile_ceu_info,
+ .platform_data = &ceu0_pdata,
},
};
@@ -488,44 +365,18 @@ static struct platform_device sdhi1_cn7_device = {
},
};
-static struct i2c_board_info __initdata ap325rxa_i2c_devices[] = {
- {
- I2C_BOARD_INFO("pcf8563", 0x51),
- },
-};
-
-static struct i2c_board_info ap325rxa_i2c_camera[] = {
- {
- I2C_BOARD_INFO("ov772x", 0x21),
- },
-};
-
static struct ov772x_camera_info ov7725_info = {
.flags = OV772X_FLAG_VFLIP | OV772X_FLAG_HFLIP,
.edgectrl = OV772X_AUTO_EDGECTRL(0xf, 0),
};
-static struct soc_camera_link ov7725_link = {
- .bus_id = 0,
- .power = ov7725_power,
- .board_info = &ap325rxa_i2c_camera[0],
- .i2c_adapter_id = 0,
- .priv = &ov7725_info,
-};
-
-static struct platform_device ap325rxa_camera[] = {
+static struct i2c_board_info ap325rxa_i2c_devices[] __initdata = {
{
- .name = "soc-camera-pdrv",
- .id = 0,
- .dev = {
- .platform_data = &ov7725_link,
- },
- }, {
- .name = "soc-camera-pdrv",
- .id = 1,
- .dev = {
- .platform_data = &camera_link,
- },
+ I2C_BOARD_INFO("pcf8563", 0x51),
+ },
+ {
+ I2C_BOARD_INFO("ov772x", 0x21),
+ .platform_data = &ov7725_info,
},
};
@@ -533,12 +384,9 @@ static struct platform_device *ap325rxa_devices[] __initdata = {
&smsc9118_device,
&ap325rxa_nor_flash_device,
&lcdc_device,
- &ceu_device,
&nand_flash_device,
&sdhi0_cn3_device,
&sdhi1_cn7_device,
- &ap325rxa_camera[0],
- &ap325rxa_camera[1],
};
extern char ap325rxa_sdram_enter_start;
@@ -649,8 +497,6 @@ static int __init ap325rxa_devices_setup(void)
__raw_writew(0xFFFF, PORT_DRVCRA);
__raw_writew(0xFFFF, PORT_DRVCRB);
- platform_resource_setup_memory(&ceu_device, "ceu", 4 << 20);
-
/* SDHI0 - CN3 - SD CARD */
gpio_request(GPIO_FN_SDHI0CD_PTD, NULL);
gpio_request(GPIO_FN_SDHI0WP_PTD, NULL);
@@ -670,9 +516,25 @@ static int __init ap325rxa_devices_setup(void)
gpio_request(GPIO_FN_SDHI1CMD, NULL);
gpio_request(GPIO_FN_SDHI1CLK, NULL);
+ /* Add a clock alias for ov7725 xclk source. */
+ clk_add_alias(NULL, "0-0021", "video_clk", NULL);
+
+ /* Register RSTB gpio for ov7725 camera sensor. */
+ gpiod_add_lookup_table(&ov7725_gpios);
+
i2c_register_board_info(0, ap325rxa_i2c_devices,
ARRAY_SIZE(ap325rxa_i2c_devices));
+ /* Initialize CEU platform device separately to map memory first */
+ device_initialize(&ap325rxa_ceu_device.dev);
+ arch_setup_pdev_archdata(&ap325rxa_ceu_device);
+ dma_declare_coherent_memory(&ap325rxa_ceu_device.dev,
+ ceu_dma_membase, ceu_dma_membase,
+ ceu_dma_membase + CEU_BUFFER_MEMORY_SIZE - 1,
+ DMA_MEMORY_EXCLUSIVE);
+
+ platform_device_add(&ap325rxa_ceu_device);
+
return platform_add_devices(ap325rxa_devices,
ARRAY_SIZE(ap325rxa_devices));
}
@@ -689,7 +551,21 @@ static int ap325rxa_mode_pins(void)
return MODE_PIN5 | MODE_PIN8;
}
+/* Reserve a portion of memory for CEU buffers */
+static void __init ap325rxa_mv_mem_reserve(void)
+{
+ phys_addr_t phys;
+ phys_addr_t size = CEU_BUFFER_MEMORY_SIZE;
+
+ phys = memblock_alloc_base(size, PAGE_SIZE, MEMBLOCK_ALLOC_ANYWHERE);
+ memblock_free(phys, size);
+ memblock_remove(phys, size);
+
+ ceu_dma_membase = phys;
+}
+
static struct sh_machine_vector mv_ap325rxa __initmv = {
.mv_name = "AP-325RXA",
.mv_mode_pins = ap325rxa_mode_pins,
+ .mv_mem_reserve = ap325rxa_mv_mem_reserve,
};
diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7723.c b/arch/sh/kernel/cpu/sh4a/clock-sh7723.c
index fe84422..af01664 100644
--- a/arch/sh/kernel/cpu/sh4a/clock-sh7723.c
+++ b/arch/sh/kernel/cpu/sh4a/clock-sh7723.c
@@ -260,7 +260,7 @@ static struct clk_lookup lookups[] = {
CLKDEV_CON_ID("veu1", &mstp_clks[HWBLK_VEU2H1]),
CLKDEV_DEV_ID("sh-vou.0", &mstp_clks[HWBLK_VOU]),
CLKDEV_CON_ID("beu0", &mstp_clks[HWBLK_BEU]),
- CLKDEV_DEV_ID("sh_mobile_ceu.0", &mstp_clks[HWBLK_CEU]),
+ CLKDEV_DEV_ID("ceu.0", &mstp_clks[HWBLK_CEU]),
CLKDEV_CON_ID("veu0", &mstp_clks[HWBLK_VEU2H0]),
CLKDEV_CON_ID("vpu0", &mstp_clks[HWBLK_VPU]),
--
2.7.4
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