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authorHans Verkuil <hans.verkuil@cisco.com>2016-07-31 07:12:22 -0400
committerMauro Carvalho Chehab <mchehab@s-opensource.com>2016-08-24 05:35:19 -0400
commitf304562ed3c97e237a77b3da57b0e43f264bd82a (patch)
tree5464da90804b1a655ffa054412d638dc120c369f
parent563bf7a72eac823b06953cd3dce9b71b499fa438 (diff)
[media] soc-camera/sh_mobile_csi2: remove unused driver
The sh_mobile_csi2 isn't used anymore (was it ever?), so remove it. Especially since the soc-camera framework is being deprecated. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat
-rw-r--r--drivers/media/platform/soc_camera/Kconfig7
-rw-r--r--drivers/media/platform/soc_camera/Makefile1
-rw-r--r--drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c229
-rw-r--r--drivers/media/platform/soc_camera/sh_mobile_csi2.c400
-rw-r--r--include/media/drv-intf/sh_mobile_ceu.h1
-rw-r--r--include/media/drv-intf/sh_mobile_csi2.h48
6 files changed, 10 insertions, 676 deletions
diff --git a/drivers/media/platform/soc_camera/Kconfig b/drivers/media/platform/soc_camera/Kconfig
index 39f66414f621..99cf471a5fc0 100644
--- a/drivers/media/platform/soc_camera/Kconfig
+++ b/drivers/media/platform/soc_camera/Kconfig
@@ -35,13 +35,6 @@ config VIDEO_RCAR_VIN_OLD
35 ---help--- 35 ---help---
36 This is a v4l2 driver for the R-Car VIN Interface 36 This is a v4l2 driver for the R-Car VIN Interface
37 37
38config VIDEO_SH_MOBILE_CSI2
39 tristate "SuperH Mobile MIPI CSI-2 Interface driver"
40 depends on VIDEO_DEV && SOC_CAMERA && HAVE_CLK
41 depends on ARCH_SHMOBILE || SUPERH || COMPILE_TEST
42 ---help---
43 This is a v4l2 driver for the SuperH MIPI CSI-2 Interface
44
45config VIDEO_SH_MOBILE_CEU 38config VIDEO_SH_MOBILE_CEU
46 tristate "SuperH Mobile CEU Interface driver" 39 tristate "SuperH Mobile CEU Interface driver"
47 depends on VIDEO_DEV && SOC_CAMERA && HAS_DMA && HAVE_CLK 40 depends on VIDEO_DEV && SOC_CAMERA && HAS_DMA && HAVE_CLK
diff --git a/drivers/media/platform/soc_camera/Makefile b/drivers/media/platform/soc_camera/Makefile
index 7703cb7ce456..ee8f9a4ae2a4 100644
--- a/drivers/media/platform/soc_camera/Makefile
+++ b/drivers/media/platform/soc_camera/Makefile
@@ -9,5 +9,4 @@ obj-$(CONFIG_SOC_CAMERA_PLATFORM) += soc_camera_platform.o
9obj-$(CONFIG_VIDEO_ATMEL_ISI) += atmel-isi.o 9obj-$(CONFIG_VIDEO_ATMEL_ISI) += atmel-isi.o
10obj-$(CONFIG_VIDEO_PXA27x) += pxa_camera.o 10obj-$(CONFIG_VIDEO_PXA27x) += pxa_camera.o
11obj-$(CONFIG_VIDEO_SH_MOBILE_CEU) += sh_mobile_ceu_camera.o 11obj-$(CONFIG_VIDEO_SH_MOBILE_CEU) += sh_mobile_ceu_camera.o
12obj-$(CONFIG_VIDEO_SH_MOBILE_CSI2) += sh_mobile_csi2.o
13obj-$(CONFIG_VIDEO_RCAR_VIN_OLD) += rcar_vin.o 12obj-$(CONFIG_VIDEO_RCAR_VIN_OLD) += rcar_vin.o
diff --git a/drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c b/drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c
index 02b519dde42a..05eafe3a421e 100644
--- a/drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c
+++ b/drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c
@@ -41,7 +41,6 @@
41#include <media/v4l2-dev.h> 41#include <media/v4l2-dev.h>
42#include <media/soc_camera.h> 42#include <media/soc_camera.h>
43#include <media/drv-intf/sh_mobile_ceu.h> 43#include <media/drv-intf/sh_mobile_ceu.h>
44#include <media/drv-intf/sh_mobile_csi2.h>
45#include <media/videobuf2-dma-contig.h> 44#include <media/videobuf2-dma-contig.h>
46#include <media/v4l2-mediabus.h> 45#include <media/v4l2-mediabus.h>
47#include <media/drv-intf/soc_mediabus.h> 46#include <media/drv-intf/soc_mediabus.h>
@@ -99,11 +98,6 @@ struct sh_mobile_ceu_buffer {
99 98
100struct sh_mobile_ceu_dev { 99struct sh_mobile_ceu_dev {
101 struct soc_camera_host ici; 100 struct soc_camera_host ici;
102 /* Asynchronous CSI2 linking */
103 struct v4l2_async_subdev *csi2_asd;
104 struct v4l2_subdev *csi2_sd;
105 /* Synchronous probing compatibility */
106 struct platform_device *csi2_pdev;
107 101
108 unsigned int irq; 102 unsigned int irq;
109 void __iomem *base; 103 void __iomem *base;
@@ -517,74 +511,20 @@ out:
517 return IRQ_HANDLED; 511 return IRQ_HANDLED;
518} 512}
519 513
520static struct v4l2_subdev *find_csi2(struct sh_mobile_ceu_dev *pcdev)
521{
522 struct v4l2_subdev *sd;
523
524 if (pcdev->csi2_sd)
525 return pcdev->csi2_sd;
526
527 if (pcdev->csi2_asd) {
528 char name[] = "sh-mobile-csi2";
529 v4l2_device_for_each_subdev(sd, &pcdev->ici.v4l2_dev)
530 if (!strncmp(name, sd->name, sizeof(name) - 1)) {
531 pcdev->csi2_sd = sd;
532 return sd;
533 }
534 }
535
536 return NULL;
537}
538
539static struct v4l2_subdev *csi2_subdev(struct sh_mobile_ceu_dev *pcdev,
540 struct soc_camera_device *icd)
541{
542 struct v4l2_subdev *sd = pcdev->csi2_sd;
543
544 return sd && sd->grp_id == soc_camera_grp_id(icd) ? sd : NULL;
545}
546
547static int sh_mobile_ceu_add_device(struct soc_camera_device *icd) 514static int sh_mobile_ceu_add_device(struct soc_camera_device *icd)
548{ 515{
549 struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
550 struct sh_mobile_ceu_dev *pcdev = ici->priv;
551 struct v4l2_subdev *csi2_sd = find_csi2(pcdev);
552 int ret;
553
554 if (csi2_sd) {
555 csi2_sd->grp_id = soc_camera_grp_id(icd);
556 v4l2_set_subdev_hostdata(csi2_sd, icd);
557 }
558
559 ret = v4l2_subdev_call(csi2_sd, core, s_power, 1);
560 if (ret < 0 && ret != -ENOIOCTLCMD && ret != -ENODEV)
561 return ret;
562
563 /*
564 * -ENODEV is special: either csi2_sd == NULL or the CSI-2 driver
565 * has not found this soc-camera device among its clients
566 */
567 if (csi2_sd && ret == -ENODEV)
568 csi2_sd->grp_id = 0;
569
570 dev_info(icd->parent, 516 dev_info(icd->parent,
571 "SuperH Mobile CEU%s driver attached to camera %d\n", 517 "SuperH Mobile CEU driver attached to camera %d\n",
572 csi2_sd && csi2_sd->grp_id ? "/CSI-2" : "", icd->devnum); 518 icd->devnum);
573 519
574 return 0; 520 return 0;
575} 521}
576 522
577static void sh_mobile_ceu_remove_device(struct soc_camera_device *icd) 523static void sh_mobile_ceu_remove_device(struct soc_camera_device *icd)
578{ 524{
579 struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
580 struct sh_mobile_ceu_dev *pcdev = ici->priv;
581 struct v4l2_subdev *csi2_sd = find_csi2(pcdev);
582
583 dev_info(icd->parent, 525 dev_info(icd->parent,
584 "SuperH Mobile CEU driver detached from camera %d\n", 526 "SuperH Mobile CEU driver detached from camera %d\n",
585 icd->devnum); 527 icd->devnum);
586
587 v4l2_subdev_call(csi2_sd, core, s_power, 0);
588} 528}
589 529
590/* Called with .host_lock held */ 530/* Called with .host_lock held */
@@ -704,12 +644,6 @@ static void sh_mobile_ceu_set_rect(struct soc_camera_device *icd)
704 cdwdr_width *= 2; 644 cdwdr_width *= 2;
705 } 645 }
706 646
707 /* CSI2 special configuration */
708 if (csi2_subdev(pcdev, icd)) {
709 in_width = ((in_width - 2) * 2);
710 left_offset *= 2;
711 }
712
713 /* Set CAMOR, CAPWR, CFSZR, take care of CDWDR */ 647 /* Set CAMOR, CAPWR, CFSZR, take care of CDWDR */
714 camor = left_offset | (top_offset << 16); 648 camor = left_offset | (top_offset << 16);
715 649
@@ -758,13 +692,6 @@ static void capture_restore(struct sh_mobile_ceu_dev *pcdev, u32 capsr)
758 ceu_write(pcdev, CAPSR, capsr); 692 ceu_write(pcdev, CAPSR, capsr);
759} 693}
760 694
761/* Find the bus subdevice driver, e.g., CSI2 */
762static struct v4l2_subdev *find_bus_subdev(struct sh_mobile_ceu_dev *pcdev,
763 struct soc_camera_device *icd)
764{
765 return csi2_subdev(pcdev, icd) ? : soc_camera_to_subdev(icd);
766}
767
768#define CEU_BUS_FLAGS (V4L2_MBUS_MASTER | \ 695#define CEU_BUS_FLAGS (V4L2_MBUS_MASTER | \
769 V4L2_MBUS_PCLK_SAMPLE_RISING | \ 696 V4L2_MBUS_PCLK_SAMPLE_RISING | \
770 V4L2_MBUS_HSYNC_ACTIVE_HIGH | \ 697 V4L2_MBUS_HSYNC_ACTIVE_HIGH | \
@@ -778,7 +705,7 @@ static int sh_mobile_ceu_set_bus_param(struct soc_camera_device *icd)
778{ 705{
779 struct soc_camera_host *ici = to_soc_camera_host(icd->parent); 706 struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
780 struct sh_mobile_ceu_dev *pcdev = ici->priv; 707 struct sh_mobile_ceu_dev *pcdev = ici->priv;
781 struct v4l2_subdev *sd = find_bus_subdev(pcdev, icd); 708 struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
782 struct sh_mobile_ceu_cam *cam = icd->host_priv; 709 struct sh_mobile_ceu_cam *cam = icd->host_priv;
783 struct v4l2_mbus_config cfg = {.type = V4L2_MBUS_PARALLEL,}; 710 struct v4l2_mbus_config cfg = {.type = V4L2_MBUS_PARALLEL,};
784 unsigned long value, common_flags = CEU_BUS_FLAGS; 711 unsigned long value, common_flags = CEU_BUS_FLAGS;
@@ -866,9 +793,7 @@ static int sh_mobile_ceu_set_bus_param(struct soc_camera_device *icd)
866 value |= common_flags & V4L2_MBUS_VSYNC_ACTIVE_LOW ? 1 << 1 : 0; 793 value |= common_flags & V4L2_MBUS_VSYNC_ACTIVE_LOW ? 1 << 1 : 0;
867 value |= common_flags & V4L2_MBUS_HSYNC_ACTIVE_LOW ? 1 << 0 : 0; 794 value |= common_flags & V4L2_MBUS_HSYNC_ACTIVE_LOW ? 1 << 0 : 0;
868 795
869 if (csi2_subdev(pcdev, icd)) /* CSI2 mode */ 796 if (pcdev->is_16bit)
870 value |= 3 << 12;
871 else if (pcdev->is_16bit)
872 value |= 1 << 12; 797 value |= 1 << 12;
873 else if (pcdev->flags & SH_CEU_FLAG_LOWER_8BIT) 798 else if (pcdev->flags & SH_CEU_FLAG_LOWER_8BIT)
874 value |= 2 << 12; 799 value |= 2 << 12;
@@ -923,9 +848,7 @@ static int sh_mobile_ceu_set_bus_param(struct soc_camera_device *icd)
923static int sh_mobile_ceu_try_bus_param(struct soc_camera_device *icd, 848static int sh_mobile_ceu_try_bus_param(struct soc_camera_device *icd,
924 unsigned char buswidth) 849 unsigned char buswidth)
925{ 850{
926 struct soc_camera_host *ici = to_soc_camera_host(icd->parent); 851 struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
927 struct sh_mobile_ceu_dev *pcdev = ici->priv;
928 struct v4l2_subdev *sd = find_bus_subdev(pcdev, icd);
929 unsigned long common_flags = CEU_BUS_FLAGS; 852 unsigned long common_flags = CEU_BUS_FLAGS;
930 struct v4l2_mbus_config cfg = {.type = V4L2_MBUS_PARALLEL,}; 853 struct v4l2_mbus_config cfg = {.type = V4L2_MBUS_PARALLEL,};
931 int ret; 854 int ret;
@@ -1046,12 +969,9 @@ static int sh_mobile_ceu_get_formats(struct soc_camera_device *icd, unsigned int
1046 return 0; 969 return 0;
1047 } 970 }
1048 971
1049 if (!csi2_subdev(pcdev, icd)) { 972 ret = sh_mobile_ceu_try_bus_param(icd, fmt->bits_per_sample);
1050 /* Are there any restrictions in the CSI-2 case? */ 973 if (ret < 0)
1051 ret = sh_mobile_ceu_try_bus_param(icd, fmt->bits_per_sample); 974 return 0;
1052 if (ret < 0)
1053 return 0;
1054 }
1055 975
1056 if (!icd->host_priv) { 976 if (!icd->host_priv) {
1057 struct v4l2_subdev_format fmt = { 977 struct v4l2_subdev_format fmt = {
@@ -1721,12 +1641,11 @@ static int sh_mobile_ceu_probe(struct platform_device *pdev)
1721 struct resource *res; 1641 struct resource *res;
1722 void __iomem *base; 1642 void __iomem *base;
1723 unsigned int irq; 1643 unsigned int irq;
1724 int err, i; 1644 int err;
1725 struct bus_wait wait = { 1645 struct bus_wait wait = {
1726 .completion = COMPLETION_INITIALIZER_ONSTACK(wait.completion), 1646 .completion = COMPLETION_INITIALIZER_ONSTACK(wait.completion),
1727 .notifier.notifier_call = bus_notify, 1647 .notifier.notifier_call = bus_notify,
1728 }; 1648 };
1729 struct sh_mobile_ceu_companion *csi2;
1730 1649
1731 res = platform_get_resource(pdev, IORESOURCE_MEM, 0); 1650 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
1732 irq = platform_get_irq(pdev, 0); 1651 irq = platform_get_irq(pdev, 0);
@@ -1821,132 +1740,16 @@ static int sh_mobile_ceu_probe(struct platform_device *pdev)
1821 pcdev->ici.capabilities = SOCAM_HOST_CAP_STRIDE; 1740 pcdev->ici.capabilities = SOCAM_HOST_CAP_STRIDE;
1822 1741
1823 if (pcdev->pdata && pcdev->pdata->asd_sizes) { 1742 if (pcdev->pdata && pcdev->pdata->asd_sizes) {
1824 struct v4l2_async_subdev **asd;
1825 char name[] = "sh-mobile-csi2";
1826 int j;
1827
1828 /*
1829 * CSI2 interfacing: several groups can use CSI2, pick up the
1830 * first one
1831 */
1832 asd = pcdev->pdata->asd;
1833 for (j = 0; pcdev->pdata->asd_sizes[j]; j++) {
1834 for (i = 0; i < pcdev->pdata->asd_sizes[j]; i++, asd++) {
1835 dev_dbg(&pdev->dev, "%s(): subdev #%d, type %u\n",
1836 __func__, i, (*asd)->match_type);
1837 if ((*asd)->match_type == V4L2_ASYNC_MATCH_DEVNAME &&
1838 !strncmp(name, (*asd)->match.device_name.name,
1839 sizeof(name) - 1)) {
1840 pcdev->csi2_asd = *asd;
1841 break;
1842 }
1843 }
1844 if (pcdev->csi2_asd)
1845 break;
1846 }
1847
1848 pcdev->ici.asd = pcdev->pdata->asd; 1743 pcdev->ici.asd = pcdev->pdata->asd;
1849 pcdev->ici.asd_sizes = pcdev->pdata->asd_sizes; 1744 pcdev->ici.asd_sizes = pcdev->pdata->asd_sizes;
1850 } 1745 }
1851 1746
1852 /* Legacy CSI2 interfacing */
1853 csi2 = pcdev->pdata ? pcdev->pdata->csi2 : NULL;
1854 if (csi2) {
1855 /*
1856 * TODO: remove this once all users are converted to
1857 * asynchronous CSI2 probing. If it has to be kept, csi2
1858 * platform device resources have to be added, using
1859 * platform_device_add_resources()
1860 */
1861 struct platform_device *csi2_pdev =
1862 platform_device_alloc("sh-mobile-csi2", csi2->id);
1863 struct sh_csi2_pdata *csi2_pdata = csi2->platform_data;
1864
1865 if (!csi2_pdev) {
1866 err = -ENOMEM;
1867 goto exit_free_clk;
1868 }
1869
1870 pcdev->csi2_pdev = csi2_pdev;
1871
1872 err = platform_device_add_data(csi2_pdev, csi2_pdata,
1873 sizeof(*csi2_pdata));
1874 if (err < 0)
1875 goto exit_pdev_put;
1876
1877 csi2_pdev->resource = csi2->resource;
1878 csi2_pdev->num_resources = csi2->num_resources;
1879
1880 err = platform_device_add(csi2_pdev);
1881 if (err < 0)
1882 goto exit_pdev_put;
1883
1884 wait.dev = &csi2_pdev->dev;
1885
1886 err = bus_register_notifier(&platform_bus_type, &wait.notifier);
1887 if (err < 0)
1888 goto exit_pdev_unregister;
1889
1890 /*
1891 * From this point the driver module will not unload, until
1892 * we complete the completion.
1893 */
1894
1895 if (!csi2_pdev->dev.driver) {
1896 complete(&wait.completion);
1897 /* Either too late, or probing failed */
1898 bus_unregister_notifier(&platform_bus_type, &wait.notifier);
1899 err = -ENXIO;
1900 goto exit_pdev_unregister;
1901 }
1902
1903 /*
1904 * The module is still loaded, in the worst case it is hanging
1905 * in device release on our completion. So, _now_ dereferencing
1906 * the "owner" is safe!
1907 */
1908
1909 err = try_module_get(csi2_pdev->dev.driver->owner);
1910
1911 /* Let notifier complete, if it has been locked */
1912 complete(&wait.completion);
1913 bus_unregister_notifier(&platform_bus_type, &wait.notifier);
1914 if (!err) {
1915 err = -ENODEV;
1916 goto exit_pdev_unregister;
1917 }
1918
1919 pcdev->csi2_sd = platform_get_drvdata(csi2_pdev);
1920 }
1921
1922 err = soc_camera_host_register(&pcdev->ici); 1747 err = soc_camera_host_register(&pcdev->ici);
1923 if (err) 1748 if (err)
1924 goto exit_csi2_unregister; 1749 goto exit_free_clk;
1925
1926 if (csi2) {
1927 err = v4l2_device_register_subdev(&pcdev->ici.v4l2_dev,
1928 pcdev->csi2_sd);
1929 dev_dbg(&pdev->dev, "%s(): ret(register_subdev) = %d\n",
1930 __func__, err);
1931 if (err < 0)
1932 goto exit_host_unregister;
1933 /* v4l2_device_register_subdev() took a reference too */
1934 module_put(pcdev->csi2_sd->owner);
1935 }
1936 1750
1937 return 0; 1751 return 0;
1938 1752
1939exit_host_unregister:
1940 soc_camera_host_unregister(&pcdev->ici);
1941exit_csi2_unregister:
1942 if (csi2) {
1943 module_put(pcdev->csi2_pdev->dev.driver->owner);
1944exit_pdev_unregister:
1945 platform_device_del(pcdev->csi2_pdev);
1946exit_pdev_put:
1947 pcdev->csi2_pdev->resource = NULL;
1948 platform_device_put(pcdev->csi2_pdev);
1949 }
1950exit_free_clk: 1753exit_free_clk:
1951 pm_runtime_disable(&pdev->dev); 1754 pm_runtime_disable(&pdev->dev);
1952exit_release_mem: 1755exit_release_mem:
@@ -1958,21 +1761,11 @@ exit_release_mem:
1958static int sh_mobile_ceu_remove(struct platform_device *pdev) 1761static int sh_mobile_ceu_remove(struct platform_device *pdev)
1959{ 1762{
1960 struct soc_camera_host *soc_host = to_soc_camera_host(&pdev->dev); 1763 struct soc_camera_host *soc_host = to_soc_camera_host(&pdev->dev);
1961 struct sh_mobile_ceu_dev *pcdev = container_of(soc_host,
1962 struct sh_mobile_ceu_dev, ici);
1963 struct platform_device *csi2_pdev = pcdev->csi2_pdev;
1964 1764
1965 soc_camera_host_unregister(soc_host); 1765 soc_camera_host_unregister(soc_host);
1966 pm_runtime_disable(&pdev->dev); 1766 pm_runtime_disable(&pdev->dev);
1967 if (platform_get_resource(pdev, IORESOURCE_MEM, 1)) 1767 if (platform_get_resource(pdev, IORESOURCE_MEM, 1))
1968 dma_release_declared_memory(&pdev->dev); 1768 dma_release_declared_memory(&pdev->dev);
1969 if (csi2_pdev && csi2_pdev->dev.driver) {
1970 struct module *csi2_drv = csi2_pdev->dev.driver->owner;
1971 platform_device_del(csi2_pdev);
1972 csi2_pdev->resource = NULL;
1973 platform_device_put(csi2_pdev);
1974 module_put(csi2_drv);
1975 }
1976 1769
1977 return 0; 1770 return 0;
1978} 1771}
@@ -2012,8 +1805,6 @@ static struct platform_driver sh_mobile_ceu_driver = {
2012 1805
2013static int __init sh_mobile_ceu_init(void) 1806static int __init sh_mobile_ceu_init(void)
2014{ 1807{
2015 /* Whatever return code */
2016 request_module("sh_mobile_csi2");
2017 return platform_driver_register(&sh_mobile_ceu_driver); 1808 return platform_driver_register(&sh_mobile_ceu_driver);
2018} 1809}
2019 1810
diff --git a/drivers/media/platform/soc_camera/sh_mobile_csi2.c b/drivers/media/platform/soc_camera/sh_mobile_csi2.c
deleted file mode 100644
index 09b18365a4b1..000000000000
--- a/drivers/media/platform/soc_camera/sh_mobile_csi2.c
+++ /dev/null
@@ -1,400 +0,0 @@
1/*
2 * Driver for the SH-Mobile MIPI CSI-2 unit
3 *
4 * Copyright (C) 2010, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10
11#include <linux/delay.h>
12#include <linux/err.h>
13#include <linux/i2c.h>
14#include <linux/io.h>
15#include <linux/platform_device.h>
16#include <linux/pm_runtime.h>
17#include <linux/slab.h>
18#include <linux/videodev2.h>
19#include <linux/module.h>
20
21#include <media/drv-intf/sh_mobile_ceu.h>
22#include <media/drv-intf/sh_mobile_csi2.h>
23#include <media/soc_camera.h>
24#include <media/drv-intf/soc_mediabus.h>
25#include <media/v4l2-common.h>
26#include <media/v4l2-dev.h>
27#include <media/v4l2-device.h>
28#include <media/v4l2-mediabus.h>
29#include <media/v4l2-subdev.h>
30
31#define SH_CSI2_TREF 0x00
32#define SH_CSI2_SRST 0x04
33#define SH_CSI2_PHYCNT 0x08
34#define SH_CSI2_CHKSUM 0x0C
35#define SH_CSI2_VCDT 0x10
36
37struct sh_csi2 {
38 struct v4l2_subdev subdev;
39 unsigned int irq;
40 unsigned long mipi_flags;
41 void __iomem *base;
42 struct platform_device *pdev;
43 struct sh_csi2_client_config *client;
44};
45
46static void sh_csi2_hwinit(struct sh_csi2 *priv);
47
48static int sh_csi2_set_fmt(struct v4l2_subdev *sd,
49 struct v4l2_subdev_pad_config *cfg,
50 struct v4l2_subdev_format *format)
51{
52 struct sh_csi2 *priv = container_of(sd, struct sh_csi2, subdev);
53 struct sh_csi2_pdata *pdata = priv->pdev->dev.platform_data;
54 struct v4l2_mbus_framefmt *mf = &format->format;
55 u32 tmp = (priv->client->channel & 3) << 8;
56
57 if (format->pad)
58 return -EINVAL;
59
60 if (mf->width > 8188)
61 mf->width = 8188;
62 else if (mf->width & 1)
63 mf->width &= ~1;
64
65 switch (pdata->type) {
66 case SH_CSI2C:
67 switch (mf->code) {
68 case MEDIA_BUS_FMT_UYVY8_2X8: /* YUV422 */
69 case MEDIA_BUS_FMT_YUYV8_1_5X8: /* YUV420 */
70 case MEDIA_BUS_FMT_Y8_1X8: /* RAW8 */
71 case MEDIA_BUS_FMT_SBGGR8_1X8:
72 case MEDIA_BUS_FMT_SGRBG8_1X8:
73 break;
74 default:
75 /* All MIPI CSI-2 devices must support one of primary formats */
76 mf->code = MEDIA_BUS_FMT_YUYV8_2X8;
77 }
78 break;
79 case SH_CSI2I:
80 switch (mf->code) {
81 case MEDIA_BUS_FMT_Y8_1X8: /* RAW8 */
82 case MEDIA_BUS_FMT_SBGGR8_1X8:
83 case MEDIA_BUS_FMT_SGRBG8_1X8:
84 case MEDIA_BUS_FMT_SBGGR10_1X10: /* RAW10 */
85 case MEDIA_BUS_FMT_SBGGR12_1X12: /* RAW12 */
86 break;
87 default:
88 /* All MIPI CSI-2 devices must support one of primary formats */
89 mf->code = MEDIA_BUS_FMT_SBGGR8_1X8;
90 }
91 break;
92 }
93
94 if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
95 cfg->try_fmt = *mf;
96 return 0;
97 }
98
99 if (mf->width > 8188 || mf->width & 1)
100 return -EINVAL;
101
102 switch (mf->code) {
103 case MEDIA_BUS_FMT_UYVY8_2X8:
104 tmp |= 0x1e; /* YUV422 8 bit */
105 break;
106 case MEDIA_BUS_FMT_YUYV8_1_5X8:
107 tmp |= 0x18; /* YUV420 8 bit */
108 break;
109 case MEDIA_BUS_FMT_RGB555_2X8_PADHI_BE:
110 tmp |= 0x21; /* RGB555 */
111 break;
112 case MEDIA_BUS_FMT_RGB565_2X8_BE:
113 tmp |= 0x22; /* RGB565 */
114 break;
115 case MEDIA_BUS_FMT_Y8_1X8:
116 case MEDIA_BUS_FMT_SBGGR8_1X8:
117 case MEDIA_BUS_FMT_SGRBG8_1X8:
118 tmp |= 0x2a; /* RAW8 */
119 break;
120 default:
121 return -EINVAL;
122 }
123
124 iowrite32(tmp, priv->base + SH_CSI2_VCDT);
125
126 return 0;
127}
128
129static int sh_csi2_g_mbus_config(struct v4l2_subdev *sd,
130 struct v4l2_mbus_config *cfg)
131{
132 struct sh_csi2 *priv = container_of(sd, struct sh_csi2, subdev);
133
134 if (!priv->mipi_flags) {
135 struct soc_camera_device *icd = v4l2_get_subdev_hostdata(sd);
136 struct v4l2_subdev *client_sd = soc_camera_to_subdev(icd);
137 struct sh_csi2_pdata *pdata = priv->pdev->dev.platform_data;
138 unsigned long common_flags, csi2_flags;
139 struct v4l2_mbus_config client_cfg = {.type = V4L2_MBUS_CSI2,};
140 int ret;
141
142 /* Check if we can support this camera */
143 csi2_flags = V4L2_MBUS_CSI2_CONTINUOUS_CLOCK |
144 V4L2_MBUS_CSI2_1_LANE;
145
146 switch (pdata->type) {
147 case SH_CSI2C:
148 if (priv->client->lanes != 1)
149 csi2_flags |= V4L2_MBUS_CSI2_2_LANE;
150 break;
151 case SH_CSI2I:
152 switch (priv->client->lanes) {
153 default:
154 csi2_flags |= V4L2_MBUS_CSI2_4_LANE;
155 case 3:
156 csi2_flags |= V4L2_MBUS_CSI2_3_LANE;
157 case 2:
158 csi2_flags |= V4L2_MBUS_CSI2_2_LANE;
159 }
160 }
161
162 ret = v4l2_subdev_call(client_sd, video, g_mbus_config, &client_cfg);
163 if (ret == -ENOIOCTLCMD)
164 common_flags = csi2_flags;
165 else if (!ret)
166 common_flags = soc_mbus_config_compatible(&client_cfg,
167 csi2_flags);
168 else
169 common_flags = 0;
170
171 if (!common_flags)
172 return -EINVAL;
173
174 /* All good: camera MIPI configuration supported */
175 priv->mipi_flags = common_flags;
176 }
177
178 if (cfg) {
179 cfg->flags = V4L2_MBUS_PCLK_SAMPLE_RISING |
180 V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_HIGH |
181 V4L2_MBUS_MASTER | V4L2_MBUS_DATA_ACTIVE_HIGH;
182 cfg->type = V4L2_MBUS_PARALLEL;
183 }
184
185 return 0;
186}
187
188static int sh_csi2_s_mbus_config(struct v4l2_subdev *sd,
189 const struct v4l2_mbus_config *cfg)
190{
191 struct sh_csi2 *priv = container_of(sd, struct sh_csi2, subdev);
192 struct soc_camera_device *icd = v4l2_get_subdev_hostdata(sd);
193 struct v4l2_subdev *client_sd = soc_camera_to_subdev(icd);
194 struct v4l2_mbus_config client_cfg = {.type = V4L2_MBUS_CSI2,};
195 int ret = sh_csi2_g_mbus_config(sd, NULL);
196
197 if (ret < 0)
198 return ret;
199
200 pm_runtime_get_sync(&priv->pdev->dev);
201
202 sh_csi2_hwinit(priv);
203
204 client_cfg.flags = priv->mipi_flags;
205
206 return v4l2_subdev_call(client_sd, video, s_mbus_config, &client_cfg);
207}
208
209static struct v4l2_subdev_video_ops sh_csi2_subdev_video_ops = {
210 .g_mbus_config = sh_csi2_g_mbus_config,
211 .s_mbus_config = sh_csi2_s_mbus_config,
212};
213
214static struct v4l2_subdev_pad_ops sh_csi2_subdev_pad_ops = {
215 .set_fmt = sh_csi2_set_fmt,
216};
217
218static void sh_csi2_hwinit(struct sh_csi2 *priv)
219{
220 struct sh_csi2_pdata *pdata = priv->pdev->dev.platform_data;
221 __u32 tmp = 0x10; /* Enable MIPI CSI clock lane */
222
223 /* Reflect registers immediately */
224 iowrite32(0x00000001, priv->base + SH_CSI2_TREF);
225 /* reset CSI2 harware */
226 iowrite32(0x00000001, priv->base + SH_CSI2_SRST);
227 udelay(5);
228 iowrite32(0x00000000, priv->base + SH_CSI2_SRST);
229
230 switch (pdata->type) {
231 case SH_CSI2C:
232 if (priv->client->lanes == 1)
233 tmp |= 1;
234 else
235 /* Default - both lanes */
236 tmp |= 3;
237 break;
238 case SH_CSI2I:
239 if (!priv->client->lanes || priv->client->lanes > 4)
240 /* Default - all 4 lanes */
241 tmp |= 0xf;
242 else
243 tmp |= (1 << priv->client->lanes) - 1;
244 }
245
246 if (priv->client->phy == SH_CSI2_PHY_MAIN)
247 tmp |= 0x8000;
248
249 iowrite32(tmp, priv->base + SH_CSI2_PHYCNT);
250
251 tmp = 0;
252 if (pdata->flags & SH_CSI2_ECC)
253 tmp |= 2;
254 if (pdata->flags & SH_CSI2_CRC)
255 tmp |= 1;
256 iowrite32(tmp, priv->base + SH_CSI2_CHKSUM);
257}
258
259static int sh_csi2_client_connect(struct sh_csi2 *priv)
260{
261 struct device *dev = v4l2_get_subdevdata(&priv->subdev);
262 struct sh_csi2_pdata *pdata = dev->platform_data;
263 struct soc_camera_device *icd = v4l2_get_subdev_hostdata(&priv->subdev);
264 int i;
265
266 if (priv->client)
267 return -EBUSY;
268
269 for (i = 0; i < pdata->num_clients; i++)
270 if ((pdata->clients[i].pdev &&
271 &pdata->clients[i].pdev->dev == icd->pdev) ||
272 (icd->control &&
273 strcmp(pdata->clients[i].name, dev_name(icd->control))))
274 break;
275
276 dev_dbg(dev, "%s(%p): found #%d\n", __func__, dev, i);
277
278 if (i == pdata->num_clients)
279 return -ENODEV;
280
281 priv->client = pdata->clients + i;
282
283 return 0;
284}
285
286static void sh_csi2_client_disconnect(struct sh_csi2 *priv)
287{
288 if (!priv->client)
289 return;
290
291 priv->client = NULL;
292
293 pm_runtime_put(v4l2_get_subdevdata(&priv->subdev));
294}
295
296static int sh_csi2_s_power(struct v4l2_subdev *sd, int on)
297{
298 struct sh_csi2 *priv = container_of(sd, struct sh_csi2, subdev);
299
300 if (on)
301 return sh_csi2_client_connect(priv);
302
303 sh_csi2_client_disconnect(priv);
304 return 0;
305}
306
307static struct v4l2_subdev_core_ops sh_csi2_subdev_core_ops = {
308 .s_power = sh_csi2_s_power,
309};
310
311static struct v4l2_subdev_ops sh_csi2_subdev_ops = {
312 .core = &sh_csi2_subdev_core_ops,
313 .video = &sh_csi2_subdev_video_ops,
314 .pad = &sh_csi2_subdev_pad_ops,
315};
316
317static int sh_csi2_probe(struct platform_device *pdev)
318{
319 struct resource *res;
320 unsigned int irq;
321 int ret;
322 struct sh_csi2 *priv;
323 /* Platform data specify the PHY, lanes, ECC, CRC */
324 struct sh_csi2_pdata *pdata = pdev->dev.platform_data;
325
326 if (!pdata)
327 return -EINVAL;
328
329 priv = devm_kzalloc(&pdev->dev, sizeof(struct sh_csi2), GFP_KERNEL);
330 if (!priv)
331 return -ENOMEM;
332
333 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
334 /* Interrupt unused so far */
335 irq = platform_get_irq(pdev, 0);
336
337 if (!res || (int)irq <= 0) {
338 dev_err(&pdev->dev, "Not enough CSI2 platform resources.\n");
339 return -ENODEV;
340 }
341
342 /* TODO: Add support for CSI2I. Careful: different register layout! */
343 if (pdata->type != SH_CSI2C) {
344 dev_err(&pdev->dev, "Only CSI2C supported ATM.\n");
345 return -EINVAL;
346 }
347
348 priv->irq = irq;
349
350 priv->base = devm_ioremap_resource(&pdev->dev, res);
351 if (IS_ERR(priv->base))
352 return PTR_ERR(priv->base);
353
354 priv->pdev = pdev;
355 priv->subdev.owner = THIS_MODULE;
356 priv->subdev.dev = &pdev->dev;
357 platform_set_drvdata(pdev, &priv->subdev);
358
359 v4l2_subdev_init(&priv->subdev, &sh_csi2_subdev_ops);
360 v4l2_set_subdevdata(&priv->subdev, &pdev->dev);
361
362 snprintf(priv->subdev.name, V4L2_SUBDEV_NAME_SIZE, "%s.mipi-csi",
363 dev_name(&pdev->dev));
364
365 ret = v4l2_async_register_subdev(&priv->subdev);
366 if (ret < 0)
367 return ret;
368
369 pm_runtime_enable(&pdev->dev);
370
371 dev_dbg(&pdev->dev, "CSI2 probed.\n");
372
373 return 0;
374}
375
376static int sh_csi2_remove(struct platform_device *pdev)
377{
378 struct v4l2_subdev *subdev = platform_get_drvdata(pdev);
379 struct sh_csi2 *priv = container_of(subdev, struct sh_csi2, subdev);
380
381 v4l2_async_unregister_subdev(&priv->subdev);
382 pm_runtime_disable(&pdev->dev);
383
384 return 0;
385}
386
387static struct platform_driver __refdata sh_csi2_pdrv = {
388 .remove = sh_csi2_remove,
389 .probe = sh_csi2_probe,
390 .driver = {
391 .name = "sh-mobile-csi2",
392 },
393};
394
395module_platform_driver(sh_csi2_pdrv);
396
397MODULE_DESCRIPTION("SH-Mobile MIPI CSI-2 driver");
398MODULE_AUTHOR("Guennadi Liakhovetski <g.liakhovetski@gmx.de>");
399MODULE_LICENSE("GPL v2");
400MODULE_ALIAS("platform:sh-mobile-csi2");
diff --git a/include/media/drv-intf/sh_mobile_ceu.h b/include/media/drv-intf/sh_mobile_ceu.h
index 7f57056c22ba..2f43f7d9e28d 100644
--- a/include/media/drv-intf/sh_mobile_ceu.h
+++ b/include/media/drv-intf/sh_mobile_ceu.h
@@ -21,7 +21,6 @@ struct sh_mobile_ceu_info {
21 unsigned long flags; 21 unsigned long flags;
22 int max_width; 22 int max_width;
23 int max_height; 23 int max_height;
24 struct sh_mobile_ceu_companion *csi2;
25 struct v4l2_async_subdev **asd; /* Flat array, arranged in groups */ 24 struct v4l2_async_subdev **asd; /* Flat array, arranged in groups */
26 unsigned int *asd_sizes; /* 0-terminated array pf asd group sizes */ 25 unsigned int *asd_sizes; /* 0-terminated array pf asd group sizes */
27}; 26};
diff --git a/include/media/drv-intf/sh_mobile_csi2.h b/include/media/drv-intf/sh_mobile_csi2.h
deleted file mode 100644
index 14030db51f13..000000000000
--- a/include/media/drv-intf/sh_mobile_csi2.h
+++ /dev/null
@@ -1,48 +0,0 @@
1/*
2 * Driver header for the SH-Mobile MIPI CSI-2 unit
3 *
4 * Copyright (C) 2010, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10
11#ifndef SH_MIPI_CSI
12#define SH_MIPI_CSI
13
14#include <linux/list.h>
15
16enum sh_csi2_phy {
17 SH_CSI2_PHY_MAIN,
18 SH_CSI2_PHY_SUB,
19};
20
21enum sh_csi2_type {
22 SH_CSI2C,
23 SH_CSI2I,
24};
25
26#define SH_CSI2_CRC (1 << 0)
27#define SH_CSI2_ECC (1 << 1)
28
29struct platform_device;
30
31struct sh_csi2_client_config {
32 enum sh_csi2_phy phy;
33 unsigned char lanes; /* bitmask[3:0] */
34 unsigned char channel; /* 0..3 */
35 struct platform_device *pdev; /* client platform device */
36 const char *name; /* async matching: client name */
37};
38
39struct v4l2_device;
40
41struct sh_csi2_pdata {
42 enum sh_csi2_type type;
43 unsigned int flags;
44 struct sh_csi2_client_config *clients;
45 int num_clients;
46};
47
48#endif
generated by cgit v1.2.2 (git 2.25.0) at 2025-10-01 00:15:05 -0400