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media: marvell-ccic/mmp: add devicetree support 

The platform data is actually not used anywhere (along with the CSI
support) and should be safe to remove.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Lubomir Rintel 2019-05-28 05:07:29 -04:00 committed by Mauro Carvalho Chehab
parent 4d5da53d32
commit 83c40e6611
1 changed files with 27 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
drivers/media/platform/marvell-ccic/mmp-driver.c
View File

@ -17,6 +17,8 @@
#include <media/v4l2-device.h>
#include <linux/platform_data/media/mmp-camera.h>
#include <linux/device.h>
#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/io.h>
@ -194,6 +196,9 @@ static void mmpcam_calc_dphy(struct mcam_camera *mcam)
struct device *dev = &cam->pdev->dev;
unsigned long tx_clk_esc;
if (!pdata)
return;
/*
* If CSI2_DPHY3 is calculated dynamically,
* pdata->lane_clk should be already set
@ -312,10 +317,6 @@ static int mmpcam_probe(struct platform_device *pdev)
struct mmp_camera_platform_data *pdata;
int ret;
pdata = pdev->dev.platform_data;
if (!pdata)
return -ENODEV;
cam = devm_kzalloc(&pdev->dev, sizeof(*cam), GFP_KERNEL);
if (cam == NULL)
return -ENOMEM;
@ -328,17 +329,29 @@ static int mmpcam_probe(struct platform_device *pdev)
mcam->calc_dphy = mmpcam_calc_dphy;
mcam->dev = &pdev->dev;
mcam->use_smbus = 0;
mcam->mclk_src = pdata->mclk_src;
mcam->mclk_div = pdata->mclk_div;
mcam->bus_type = pdata->bus_type;
mcam->dphy = pdata->dphy;
pdata = pdev->dev.platform_data;
if (pdata) {
mcam->mclk_src = pdata->mclk_src;
mcam->mclk_div = pdata->mclk_div;
mcam->bus_type = pdata->bus_type;
mcam->dphy = pdata->dphy;
mcam->lane = pdata->lane;
} else {
/*
* These are values that used to be hardcoded in mcam-core and
* work well on a OLPC XO 1.75 with a parallel bus sensor.
* If it turns out other setups make sense, the values should
* be obtained from the device tree.
*/
mcam->mclk_src = 3;
mcam->mclk_div = 2;
}
if (mcam->bus_type == V4L2_MBUS_CSI2_DPHY) {
cam->mipi_clk = devm_clk_get(mcam->dev, "mipi");
if ((IS_ERR(cam->mipi_clk) && mcam->dphy[2] == 0))
return PTR_ERR(cam->mipi_clk);
}
mcam->mipi_enabled = false;
mcam->lane = pdata->lane;
mcam->chip_id = MCAM_ARMADA610;
mcam->buffer_mode = B_DMA_sg;
strscpy(mcam->bus_info, "platform:mmp-camera", sizeof(mcam->bus_info));
@ -473,6 +486,10 @@ static int mmpcam_resume(struct platform_device *pdev)
#endif
static const struct of_device_id mmpcam_of_match[] = {
{ .compatible = "marvell,mmp2-ccic", },
{},
};
static struct platform_driver mmpcam_driver = {
.probe = mmpcam_probe,
@ -483,6 +500,7 @@ static struct platform_driver mmpcam_driver = {
#endif
.driver = {
.name = "mmp-camera",
.of_match_table = of_match_ptr(mmpcam_of_match),
}
};