As the i.MX27 dma code was disabled in the last patch we can
now remove the resulting dead code. I tried to do this as
mechanically as possible as I currently have no setup to test
this.
Signed-off-by: Sascha Hauer <s.ha...@pengutronix.de>
---
drivers/media/video/mx2_camera.c | 225 ++++----------------------------------
1 files changed, 21 insertions(+), 204 deletions(-)
diff --git a/drivers/media/video/mx2_camera.c b/drivers/media/video/mx2_camera.c
index 65709e4..3972dc2 100644
--- a/drivers/media/video/mx2_camera.c
+++ b/drivers/media/video/mx2_camera.c
@@ -38,9 +38,6 @@
#include <linux/videodev2.h>
#include <mach/mx2_cam.h>
-#ifdef CONFIG_MACH_MX27
-#include <mach/dma-mx1-mx2.h>
-#endif
#include <mach/hardware.h>
#include <asm/dma.h>
@@ -398,42 +395,6 @@ static void mx2_camera_remove_device(struct
soc_camera_device *icd)
pcdev->icd = NULL;
}
-#ifdef CONFIG_MACH_MX27
-static void mx27_camera_dma_enable(struct mx2_camera_dev *pcdev)
-{
- u32 tmp;
-
- imx_dma_enable(pcdev->dma);
-
- tmp = readl(pcdev->base_csi + CSICR1);
- tmp |= CSICR1_RF_OR_INTEN;
- writel(tmp, pcdev->base_csi + CSICR1);
-}
-
-static irqreturn_t mx27_camera_irq(int irq_csi, void *data)
-{
- struct mx2_camera_dev *pcdev = data;
- u32 status = readl(pcdev->base_csi + CSISR);
-
- if (status & CSISR_SOF_INT && pcdev->active) {
- u32 tmp;
-
- tmp = readl(pcdev->base_csi + CSICR1);
- writel(tmp | CSICR1_CLR_RXFIFO, pcdev->base_csi + CSICR1);
- mx27_camera_dma_enable(pcdev);
- }
-
- writel(CSISR_SOF_INT | CSISR_RFF_OR_INT, pcdev->base_csi + CSISR);
-
- return IRQ_HANDLED;
-}
-#else
-static irqreturn_t mx27_camera_irq(int irq_csi, void *data)
-{
- return IRQ_NONE;
-}
-#endif /* CONFIG_MACH_MX27 */
-
static void mx25_camera_frame_done(struct mx2_camera_dev *pcdev, int fb,
int state)
{
@@ -615,26 +576,7 @@ static void mx2_videobuf_queue(struct videobuf_queue *vq,
if (cpu_is_mx27()) {
goto out;
-#ifdef CONFIG_MACH_MX27
- } else if (cpu_is_mx27()) {
- int ret;
-
- if (pcdev->active == NULL) {
- ret = imx_dma_setup_single(pcdev->dma,
- videobuf_to_dma_contig(vb), vb->size,
- (u32)pcdev->base_dma + 0x10,
- DMA_MODE_READ);
- if (ret) {
- vb->state = VIDEOBUF_ERROR;
- wake_up(&vb->done);
- goto out;
- }
-
- vb->state = VIDEOBUF_ACTIVE;
- pcdev->active = buf;
- }
-#endif
- } else { /* cpu_is_mx25() */
+ } else if (cpu_is_mx25()) {
u32 csicr3, dma_inten = 0;
if (pcdev->fb1_active == NULL) {
@@ -1197,117 +1139,6 @@ static int mx2_camera_reqbufs(struct soc_camera_device
*icd,
return 0;
}
-#ifdef CONFIG_MACH_MX27
-static void mx27_camera_frame_done(struct mx2_camera_dev *pcdev, int state)
-{
- struct videobuf_buffer *vb;
- struct mx2_buffer *buf;
- unsigned long flags;
- int ret;
-
- spin_lock_irqsave(&pcdev->lock, flags);
-
- if (!pcdev->active) {
- dev_err(pcdev->dev, "%s called with no active buffer!\n",
- __func__);
- goto out;
- }
-
- vb = &pcdev->active->vb;
- buf = container_of(vb, struct mx2_buffer, vb);
- WARN_ON(list_empty(&vb->queue));
- dev_dbg(pcdev->dev, "%s (vb=0x%p) 0x%08lx %d\n", __func__,
- vb, vb->baddr, vb->bsize);
-
- /* _init is used to debug races, see comment in pxa_camera_reqbufs() */
- list_del_init(&vb->queue);
- vb->state = state;
- do_gettimeofday(&vb->ts);
- vb->field_count++;
-
- wake_up(&vb->done);
-
- if (list_empty(&pcdev->capture)) {
- pcdev->active = NULL;
- goto out;
- }
-
- pcdev->active = list_entry(pcdev->capture.next,
- struct mx2_buffer, vb.queue);
-
- vb = &pcdev->active->vb;
- vb->state = VIDEOBUF_ACTIVE;
-
- ret = imx_dma_setup_single(pcdev->dma, videobuf_to_dma_contig(vb),
- vb->size, (u32)pcdev->base_dma + 0x10, DMA_MODE_READ);
-
- if (ret) {
- vb->state = VIDEOBUF_ERROR;
- pcdev->active = NULL;
- wake_up(&vb->done);
- }
-
-out:
- spin_unlock_irqrestore(&pcdev->lock, flags);
-}
-
-static void mx27_camera_dma_err_callback(int channel, void *data, int err)
-{
- struct mx2_camera_dev *pcdev = data;
-
- mx27_camera_frame_done(pcdev, VIDEOBUF_ERROR);
-}
-
-static void mx27_camera_dma_callback(int channel, void *data)
-{
- struct mx2_camera_dev *pcdev = data;
-
- mx27_camera_frame_done(pcdev, VIDEOBUF_DONE);
-}
-
-#define DMA_REQ_CSI_RX 31 /* FIXME: Add this to a resource */
-
-static int __devinit mx27_camera_dma_init(struct platform_device *pdev,
- struct mx2_camera_dev *pcdev)
-{
- int err;
-
- pcdev->dma = imx_dma_request_by_prio("CSI RX DMA", DMA_PRIO_HIGH);
- if (pcdev->dma < 0) {
- dev_err(&pdev->dev, "%s failed to request DMA channel\n",
- __func__);
- return pcdev->dma;
- }
-
- err = imx_dma_setup_handlers(pcdev->dma, mx27_camera_dma_callback,
- mx27_camera_dma_err_callback, pcdev);
- if (err) {
- dev_err(&pdev->dev, "%s failed to set DMA callback\n",
- __func__);
- goto err_out;
- }
-
- err = imx_dma_config_channel(pcdev->dma,
- IMX_DMA_MEMSIZE_32 | IMX_DMA_TYPE_FIFO,
- IMX_DMA_MEMSIZE_32 | IMX_DMA_TYPE_LINEAR,
- DMA_REQ_CSI_RX, 1);
- if (err) {
- dev_err(&pdev->dev, "%s failed to config DMA channel\n",
- __func__);
- goto err_out;
- }
-
- imx_dma_config_burstlen(pcdev->dma, 64);
-
- return 0;
-
-err_out:
- imx_dma_free(pcdev->dma);
-
- return err;
-}
-#endif /* CONFIG_MACH_MX27 */
-
static unsigned int mx2_camera_poll(struct file *file, poll_table *pt)
{
struct soc_camera_device *icd = file->private_data;
@@ -1523,8 +1354,6 @@ static int __devinit mx2_camera_probe(struct
platform_device *pdev)
struct resource *res_csi, *res_emma;
void __iomem *base_csi;
int irq_csi, irq_emma;
- irq_handler_t mx2_cam_irq_handler = cpu_is_mx25() ? mx25_camera_irq
- : mx27_camera_irq;
int err = 0;
dev_dbg(&pdev->dev, "initialising\n");
@@ -1553,15 +1382,6 @@ static int __devinit mx2_camera_probe(struct
platform_device *pdev)
dev_dbg(&pdev->dev, "Camera clock frequency: %ld\n",
clk_get_rate(pcdev->clk_csi));
- /* Initialize DMA */
-#ifdef CONFIG_MACH_MX27
- if (cpu_is_mx27()) {
- err = mx27_camera_dma_init(pdev, pcdev);
- if (err)
- goto exit_clk_put;
- }
-#endif /* CONFIG_MACH_MX27 */
-
pcdev->res_csi = res_csi;
pcdev->pdata = pdev->dev.platform_data;
if (pcdev->pdata) {
@@ -1602,11 +1422,13 @@ static int __devinit mx2_camera_probe(struct
platform_device *pdev)
pcdev->base_dma = res_csi->start;
pcdev->dev = &pdev->dev;
- err = request_irq(pcdev->irq_csi, mx2_cam_irq_handler, 0,
- MX2_CAM_DRV_NAME, pcdev);
- if (err) {
- dev_err(pcdev->dev, "Camera interrupt register failed \n");
- goto exit_iounmap;
+ if (cpu_is_mx25()) {
+ err = request_irq(pcdev->irq_csi, mx25_camera_irq, 0,
+ MX2_CAM_DRV_NAME, pcdev);
+ if (err) {
+ dev_err(pcdev->dev, "Camera interrupt register failed
\n");
+ goto exit_iounmap;
+ }
}
if (cpu_is_mx27()) {
@@ -1614,13 +1436,15 @@ static int __devinit mx2_camera_probe(struct
platform_device *pdev)
res_emma = platform_get_resource(pdev, IORESOURCE_MEM, 1);
irq_emma = platform_get_irq(pdev, 1);
- if (res_emma && irq_emma >= 0) {
- dev_info(&pdev->dev, "Using EMMA\n");
- pcdev->res_emma = res_emma;
- pcdev->irq_emma = irq_emma;
- if (mx27_camera_emma_init(pcdev))
- goto exit_free_irq;
+ if (!res_emma || !irq_emma) {
+ dev_err(&pdev->dev, "no EMMA resources\n");
+ goto exit_free_irq;
}
+
+ pcdev->res_emma = res_emma;
+ pcdev->irq_emma = irq_emma;
+ if (mx27_camera_emma_init(pcdev))
+ goto exit_free_irq;
}
pcdev->soc_host.drv_name = MX2_CAM_DRV_NAME,
@@ -1643,21 +1467,17 @@ exit_free_emma:
clk_disable(pcdev->clk_emma);
clk_put(pcdev->clk_emma);
iounmap(pcdev->base_emma);
- release_mem_region(res_emma->start, resource_size(res_emma));
+ release_mem_region(pcdev->res_emma->start,
resource_size(pcdev->res_emma));
}
exit_free_irq:
- free_irq(pcdev->irq_csi, pcdev);
+ if (cpu_is_mx25())
+ free_irq(pcdev->irq_csi, pcdev);
exit_iounmap:
iounmap(base_csi);
exit_release:
release_mem_region(res_csi->start, resource_size(res_csi));
exit_dma_free:
-#ifdef CONFIG_MACH_MX27
- if (cpu_is_mx27())
- imx_dma_free(pcdev->dma);
-exit_clk_put:
clk_put(pcdev->clk_csi);
-#endif /* CONFIG_MACH_MX27 */
exit_kfree:
kfree(pcdev);
exit:
@@ -1672,11 +1492,8 @@ static int __devexit mx2_camera_remove(struct
platform_device *pdev)
struct resource *res;
clk_put(pcdev->clk_csi);
-#ifdef CONFIG_MACH_MX27
- if (cpu_is_mx27())
- imx_dma_free(pcdev->dma);
-#endif /* CONFIG_MACH_MX27 */
- free_irq(pcdev->irq_csi, pcdev);
+ if (cpu_is_mx25())
+ free_irq(pcdev->irq_csi, pcdev);
if (cpu_is_mx27())
free_irq(pcdev->irq_emma, pcdev);
--
1.7.9
--
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