From 2164b5af1dd42ebb7b5aa6bbcf9d9c3c067db246 Mon Sep 17 00:00:00 2001 From: Jonathan Corbet Date: Sat, 11 Jun 2011 14:46:44 -0300 Subject: [PATCH] [media] marvell-cam: Pass sensor parameters from the platform Depending on the controller, the ov7670 sensor may be told to work with a different clock speed or to use the SMBUS protocol. Remove the wired-in code and pass that information from the platform layer. The Cafe driver now just assumes it's running on an OLPC XO 1; I do not believe it has ever run anywhere else. Cc: Daniel Drake Signed-off-by: Jonathan Corbet Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/marvell-ccic/cafe-driver.c | 6 ++++++ drivers/media/video/marvell-ccic/mcam-core.c | 22 ++-------------------- drivers/media/video/marvell-ccic/mcam-core.h | 2 ++ 3 files changed, 10 insertions(+), 20 deletions(-) diff --git a/drivers/media/video/marvell-ccic/cafe-driver.c b/drivers/media/video/marvell-ccic/cafe-driver.c index 3f38f2a..08edf95 100644 --- a/drivers/media/video/marvell-ccic/cafe-driver.c +++ b/drivers/media/video/marvell-ccic/cafe-driver.c @@ -404,6 +404,12 @@ static int cafe_pci_probe(struct pci_dev *pdev, mcam->plat_power_down = cafe_ctlr_power_down; mcam->dev = &pdev->dev; /* + * Set the clock speed for the XO 1; I don't believe this + * driver has ever run anywhere else. + */ + mcam->clock_speed = 45; + mcam->use_smbus = 1; + /* * Get set up on the PCI bus. */ ret = pci_enable_device(pdev); diff --git a/drivers/media/video/marvell-ccic/mcam-core.c b/drivers/media/video/marvell-ccic/mcam-core.c index 18fce9e..0d60234 100644 --- a/drivers/media/video/marvell-ccic/mcam-core.c +++ b/drivers/media/video/marvell-ccic/mcam-core.c @@ -7,7 +7,6 @@ #include #include #include -#include #include #include #include @@ -1536,22 +1535,7 @@ int mccic_irq(struct mcam_camera *cam, unsigned int irqs) * Registration and such. */ -/* FIXME this is really platform stuff */ -static const struct dmi_system_id olpc_xo1_dmi[] = { - { - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "OLPC"), - DMI_MATCH(DMI_PRODUCT_NAME, "XO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "1"), - }, - }, - { } -}; - static struct ov7670_config sensor_cfg = { - /* This controller only does SMBUS */ - .use_smbus = true, - /* * Exclude QCIF mode, because it only captures a tiny portion * of the sensor FOV @@ -1590,13 +1574,11 @@ int mccic_register(struct mcam_camera *cam) mcam_ctlr_init(cam); - /* Apply XO-1 clock speed */ - if (dmi_check_system(olpc_xo1_dmi)) - sensor_cfg.clock_speed = 45; - /* * Try to find the sensor. */ + sensor_cfg.clock_speed = cam->clock_speed; + sensor_cfg.use_smbus = cam->use_smbus; cam->sensor_addr = ov7670_info.addr; cam->sensor = v4l2_i2c_new_subdev_board(&cam->v4l2_dev, &cam->i2c_adapter, &ov7670_info, NULL); diff --git a/drivers/media/video/marvell-ccic/mcam-core.h b/drivers/media/video/marvell-ccic/mcam-core.h index 0b55b8e..21485e7 100644 --- a/drivers/media/video/marvell-ccic/mcam-core.h +++ b/drivers/media/video/marvell-ccic/mcam-core.h @@ -42,6 +42,8 @@ struct mcam_camera { spinlock_t dev_lock; struct device *dev; /* For messages, dma alloc */ unsigned int chip_id; + short int clock_speed; /* Sensor clock speed, default 30 */ + short int use_smbus; /* SMBUS or straight I2c? */ /* * Callbacks from the core to the platform code. -- 2.7.4