On Mon, 17 Sep 2012, Shawn Guo wrote:

> It changes the driver to use platform_device_id rather than cpu_is_xxx
> to determine the controller type, and updates the platform code
> accordingly.
> 
> As the result, mach/hardware.h inclusion gets removed from the driver.
> 
> Signed-off-by: Shawn Guo <shawn....@linaro.org>
> Cc: Guennadi Liakhovetski <g.liakhovet...@gmx.de>
> Cc: linux-media@vger.kernel.org

Acked-by: Guennadi Liakhovetski <g.liakhovet...@gmx.de>

Thanks
Guennadi

> ---
>  arch/arm/mach-imx/clk-imx25.c                   |    6 +-
>  arch/arm/mach-imx/clk-imx27.c                   |    6 +-
>  arch/arm/mach-imx/devices/devices-common.h      |    1 +
>  arch/arm/mach-imx/devices/platform-mx2-camera.c |   12 +--
>  drivers/media/video/mx2_camera.c                |   95 
> +++++++++++++++++------
>  5 files changed, 85 insertions(+), 35 deletions(-)
> 
> diff --git a/arch/arm/mach-imx/clk-imx25.c b/arch/arm/mach-imx/clk-imx25.c
> index 1aea073..71fe521 100644
> --- a/arch/arm/mach-imx/clk-imx25.c
> +++ b/arch/arm/mach-imx/clk-imx25.c
> @@ -231,9 +231,9 @@ int __init mx25_clocks_init(void)
>       clk_register_clkdev(clk[esdhc2_ipg_per], "per", "sdhci-esdhc-imx25.1");
>       clk_register_clkdev(clk[esdhc2_ipg], "ipg", "sdhci-esdhc-imx25.1");
>       clk_register_clkdev(clk[esdhc2_ahb], "ahb", "sdhci-esdhc-imx25.1");
> -     clk_register_clkdev(clk[csi_ipg_per], "per", "mx2-camera.0");
> -     clk_register_clkdev(clk[csi_ipg], "ipg", "mx2-camera.0");
> -     clk_register_clkdev(clk[csi_ahb], "ahb", "mx2-camera.0");
> +     clk_register_clkdev(clk[csi_ipg_per], "per", "imx25-camera.0");
> +     clk_register_clkdev(clk[csi_ipg], "ipg", "imx25-camera.0");
> +     clk_register_clkdev(clk[csi_ahb], "ahb", "imx25-camera.0");
>       clk_register_clkdev(clk[dummy], "audmux", NULL);
>       clk_register_clkdev(clk[can1_ipg], NULL, "flexcan.0");
>       clk_register_clkdev(clk[can2_ipg], NULL, "flexcan.1");
> diff --git a/arch/arm/mach-imx/clk-imx27.c b/arch/arm/mach-imx/clk-imx27.c
> index 5ff5cf0..e26de52 100644
> --- a/arch/arm/mach-imx/clk-imx27.c
> +++ b/arch/arm/mach-imx/clk-imx27.c
> @@ -224,7 +224,7 @@ int __init mx27_clocks_init(unsigned long fref)
>       clk_register_clkdev(clk[per3_gate], "per", "imx-fb.0");
>       clk_register_clkdev(clk[lcdc_ipg_gate], "ipg", "imx-fb.0");
>       clk_register_clkdev(clk[lcdc_ahb_gate], "ahb", "imx-fb.0");
> -     clk_register_clkdev(clk[csi_ahb_gate], "ahb", "mx2-camera.0");
> +     clk_register_clkdev(clk[csi_ahb_gate], "ahb", "imx27-camera.0");
>       clk_register_clkdev(clk[usb_div], "per", "fsl-usb2-udc");
>       clk_register_clkdev(clk[usb_ipg_gate], "ipg", "fsl-usb2-udc");
>       clk_register_clkdev(clk[usb_ahb_gate], "ahb", "fsl-usb2-udc");
> @@ -251,8 +251,8 @@ int __init mx27_clocks_init(unsigned long fref)
>       clk_register_clkdev(clk[i2c2_ipg_gate], NULL, "imx21-i2c.1");
>       clk_register_clkdev(clk[owire_ipg_gate], NULL, "mxc_w1.0");
>       clk_register_clkdev(clk[kpp_ipg_gate], NULL, "imx-keypad");
> -     clk_register_clkdev(clk[emma_ahb_gate], "emma-ahb", "mx2-camera.0");
> -     clk_register_clkdev(clk[emma_ipg_gate], "emma-ipg", "mx2-camera.0");
> +     clk_register_clkdev(clk[emma_ahb_gate], "emma-ahb", "imx27-camera.0");
> +     clk_register_clkdev(clk[emma_ipg_gate], "emma-ipg", "imx27-camera.0");
>       clk_register_clkdev(clk[emma_ahb_gate], "ahb", "m2m-emmaprp.0");
>       clk_register_clkdev(clk[emma_ipg_gate], "ipg", "m2m-emmaprp.0");
>       clk_register_clkdev(clk[iim_ipg_gate], "iim", NULL);
> diff --git a/arch/arm/mach-imx/devices/devices-common.h 
> b/arch/arm/mach-imx/devices/devices-common.h
> index 7f2698c..8112a1a 100644
> --- a/arch/arm/mach-imx/devices/devices-common.h
> +++ b/arch/arm/mach-imx/devices/devices-common.h
> @@ -202,6 +202,7 @@ struct platform_device *__init imx_add_mx3_sdc_fb(
>  
>  #include <linux/platform_data/camera-mx2.h>
>  struct imx_mx2_camera_data {
> +     const char *devid;
>       resource_size_t iobasecsi;
>       resource_size_t iosizecsi;
>       resource_size_t irqcsi;
> diff --git a/arch/arm/mach-imx/devices/platform-mx2-camera.c 
> b/arch/arm/mach-imx/devices/platform-mx2-camera.c
> index 9ad5b2d..b88877d 100644
> --- a/arch/arm/mach-imx/devices/platform-mx2-camera.c
> +++ b/arch/arm/mach-imx/devices/platform-mx2-camera.c
> @@ -9,14 +9,16 @@
>  #include <mach/hardware.h>
>  #include "devices-common.h"
>  
> -#define imx_mx2_camera_data_entry_single(soc)                                
> \
> +#define imx_mx2_camera_data_entry_single(soc, _devid)                        
> \
>       {                                                               \
> +             .devid = _devid,                                        \
>               .iobasecsi = soc ## _CSI_BASE_ADDR,                     \
>               .iosizecsi = SZ_4K,                                     \
>               .irqcsi = soc ## _INT_CSI,                              \
>       }
> -#define imx_mx2_camera_data_entry_single_emma(soc)                   \
> +#define imx_mx2_camera_data_entry_single_emma(soc, _devid)           \
>       {                                                               \
> +             .devid = _devid,                                        \
>               .iobasecsi = soc ## _CSI_BASE_ADDR,                     \
>               .iosizecsi = SZ_32,                                     \
>               .irqcsi = soc ## _INT_CSI,                              \
> @@ -27,12 +29,12 @@
>  
>  #ifdef CONFIG_SOC_IMX25
>  const struct imx_mx2_camera_data imx25_mx2_camera_data __initconst =
> -     imx_mx2_camera_data_entry_single(MX25);
> +     imx_mx2_camera_data_entry_single(MX25, "imx25-camera");
>  #endif /* ifdef CONFIG_SOC_IMX25 */
>  
>  #ifdef CONFIG_SOC_IMX27
>  const struct imx_mx2_camera_data imx27_mx2_camera_data __initconst =
> -     imx_mx2_camera_data_entry_single_emma(MX27);
> +     imx_mx2_camera_data_entry_single_emma(MX27, "imx27-camera");
>  #endif /* ifdef CONFIG_SOC_IMX27 */
>  
>  struct platform_device *__init imx_add_mx2_camera(
> @@ -58,7 +60,7 @@ struct platform_device *__init imx_add_mx2_camera(
>                       .flags = IORESOURCE_IRQ,
>               },
>       };
> -     return imx_add_platform_device_dmamask("mx2-camera", 0,
> +     return imx_add_platform_device_dmamask(data->devid, 0,
>                       res, data->iobaseemmaprp ? 4 : 2,
>                       pdata, sizeof(*pdata), DMA_BIT_MASK(32));
>  }
> diff --git a/drivers/media/video/mx2_camera.c 
> b/drivers/media/video/mx2_camera.c
> index fe4c76c..cde3374 100644
> --- a/drivers/media/video/mx2_camera.c
> +++ b/drivers/media/video/mx2_camera.c
> @@ -41,7 +41,6 @@
>  #include <linux/videodev2.h>
>  
>  #include <linux/platform_data/camera-mx2.h>
> -#include <mach/hardware.h>
>  
>  #include <asm/dma.h>
>  
> @@ -121,11 +120,13 @@
>  
>  #define CSICR1                       0x00
>  #define CSICR2                       0x04
> -#define CSISR                        (cpu_is_mx27() ? 0x08 : 0x18)
> +#define CSISR_IMX25          0x18
> +#define CSISR_IMX27          0x08
>  #define CSISTATFIFO          0x0c
>  #define CSIRFIFO             0x10
>  #define CSIRXCNT             0x14
> -#define CSICR3                       (cpu_is_mx27() ? 0x1C : 0x08)
> +#define CSICR3_IMX25         0x08
> +#define CSICR3_IMX27         0x1c
>  #define CSIDMASA_STATFIFO    0x20
>  #define CSIDMATA_STATFIFO    0x24
>  #define CSIDMASA_FB1         0x28
> @@ -268,6 +269,11 @@ struct mx2_buffer {
>       struct mx2_buf_internal         internal;
>  };
>  
> +enum mx2_camera_type {
> +     IMX25_CAMERA,
> +     IMX27_CAMERA,
> +};
> +
>  struct mx2_camera_dev {
>       struct device           *dev;
>       struct soc_camera_host  soc_host;
> @@ -291,6 +297,9 @@ struct mx2_camera_dev {
>       struct mx2_buffer       *fb2_active;
>  
>       u32                     csicr1;
> +     u32                     reg_csisr;
> +     u32                     reg_csicr3;
> +     enum mx2_camera_type    devtype;
>  
>       struct mx2_buf_internal buf_discard[2];
>       void                    *discard_buffer;
> @@ -303,6 +312,29 @@ struct mx2_camera_dev {
>       struct vb2_alloc_ctx    *alloc_ctx;
>  };
>  
> +static struct platform_device_id mx2_camera_devtype[] = {
> +     {
> +             .name = "imx25-camera",
> +             .driver_data = IMX25_CAMERA,
> +     }, {
> +             .name = "imx27-camera",
> +             .driver_data = IMX27_CAMERA,
> +     }, {
> +             /* sentinel */
> +     }
> +};
> +MODULE_DEVICE_TABLE(platform, mx2_camera_devtype);
> +
> +static inline int is_imx25_camera(struct mx2_camera_dev *pcdev)
> +{
> +     return pcdev->devtype == IMX25_CAMERA;
> +}
> +
> +static inline int is_imx27_camera(struct mx2_camera_dev *pcdev)
> +{
> +     return pcdev->devtype == IMX27_CAMERA;
> +}
> +
>  static struct mx2_buffer *mx2_ibuf_to_buf(struct mx2_buf_internal *int_buf)
>  {
>       return container_of(int_buf, struct mx2_buffer, internal);
> @@ -406,9 +438,9 @@ static void mx2_camera_deactivate(struct mx2_camera_dev 
> *pcdev)
>  
>       clk_disable_unprepare(pcdev->clk_csi);
>       writel(0, pcdev->base_csi + CSICR1);
> -     if (cpu_is_mx27()) {
> +     if (is_imx27_camera(pcdev)) {
>               writel(0, pcdev->base_emma + PRP_CNTL);
> -     } else if (cpu_is_mx25()) {
> +     } else if (is_imx25_camera(pcdev)) {
>               spin_lock_irqsave(&pcdev->lock, flags);
>               pcdev->fb1_active = NULL;
>               pcdev->fb2_active = NULL;
> @@ -438,7 +470,7 @@ static int mx2_camera_add_device(struct soc_camera_device 
> *icd)
>  
>       csicr1 = CSICR1_MCLKEN;
>  
> -     if (cpu_is_mx27())
> +     if (is_imx27_camera(pcdev))
>               csicr1 |= CSICR1_PRP_IF_EN | CSICR1_FCC |
>                       CSICR1_RXFF_LEVEL(0);
>  
> @@ -514,7 +546,7 @@ out:
>  static irqreturn_t mx25_camera_irq(int irq_csi, void *data)
>  {
>       struct mx2_camera_dev *pcdev = data;
> -     u32 status = readl(pcdev->base_csi + CSISR);
> +     u32 status = readl(pcdev->base_csi + pcdev->reg_csisr);
>  
>       if (status & CSISR_DMA_TSF_FB1_INT)
>               mx25_camera_frame_done(pcdev, 1, MX2_STATE_DONE);
> @@ -523,7 +555,7 @@ static irqreturn_t mx25_camera_irq(int irq_csi, void 
> *data)
>  
>       /* FIXME: handle CSISR_RFF_OR_INT */
>  
> -     writel(status, pcdev->base_csi + CSISR);
> +     writel(status, pcdev->base_csi + pcdev->reg_csisr);
>  
>       return IRQ_HANDLED;
>  }
> @@ -608,7 +640,7 @@ static void mx2_videobuf_queue(struct vb2_buffer *vb)
>       buf->state = MX2_STATE_QUEUED;
>       list_add_tail(&buf->internal.queue, &pcdev->capture);
>  
> -     if (cpu_is_mx25()) {
> +     if (is_imx25_camera(pcdev)) {
>               u32 csicr3, dma_inten = 0;
>  
>               if (pcdev->fb1_active == NULL) {
> @@ -627,20 +659,20 @@ static void mx2_videobuf_queue(struct vb2_buffer *vb)
>                       list_del(&buf->internal.queue);
>                       buf->state = MX2_STATE_ACTIVE;
>  
> -                     csicr3 = readl(pcdev->base_csi + CSICR3);
> +                     csicr3 = readl(pcdev->base_csi + pcdev->reg_csicr3);
>  
>                       /* Reflash DMA */
>                       writel(csicr3 | CSICR3_DMA_REFLASH_RFF,
> -                                     pcdev->base_csi + CSICR3);
> +                                     pcdev->base_csi + pcdev->reg_csicr3);
>  
>                       /* clear & enable interrupts */
> -                     writel(dma_inten, pcdev->base_csi + CSISR);
> +                     writel(dma_inten, pcdev->base_csi + pcdev->reg_csisr);
>                       pcdev->csicr1 |= dma_inten;
>                       writel(pcdev->csicr1, pcdev->base_csi + CSICR1);
>  
>                       /* enable DMA */
>                       csicr3 |= CSICR3_DMA_REQ_EN_RFF | CSICR3_RXFF_LEVEL(1);
> -                     writel(csicr3, pcdev->base_csi + CSICR3);
> +                     writel(csicr3, pcdev->base_csi + pcdev->reg_csicr3);
>               }
>       }
>  
> @@ -684,7 +716,7 @@ static void mx2_videobuf_release(struct vb2_buffer *vb)
>        */
>  
>       spin_lock_irqsave(&pcdev->lock, flags);
> -     if (cpu_is_mx25() && buf->state == MX2_STATE_ACTIVE) {
> +     if (is_imx25_camera(pcdev) && buf->state == MX2_STATE_ACTIVE) {
>               if (pcdev->fb1_active == buf) {
>                       pcdev->csicr1 &= ~CSICR1_FB1_DMA_INTEN;
>                       writel(0, pcdev->base_csi + CSIDMASA_FB1);
> @@ -807,7 +839,7 @@ static int mx2_start_streaming(struct vb2_queue *q, 
> unsigned int count)
>       unsigned long phys;
>       int bytesperline;
>  
> -     if (cpu_is_mx27()) {
> +     if (is_imx27_camera(pcdev)) {
>               unsigned long flags;
>               if (count < 2)
>                       return -EINVAL;
> @@ -902,7 +934,7 @@ static int mx2_stop_streaming(struct vb2_queue *q)
>       void *b;
>       u32 cntl;
>  
> -     if (cpu_is_mx27()) {
> +     if (is_imx27_camera(pcdev)) {
>               spin_lock_irqsave(&pcdev->lock, flags);
>  
>               cntl = readl(pcdev->base_emma + PRP_CNTL);
> @@ -1054,11 +1086,11 @@ static int mx2_camera_set_bus_param(struct 
> soc_camera_device *icd)
>       if (bytesperline < 0)
>               return bytesperline;
>  
> -     if (cpu_is_mx27()) {
> +     if (is_imx27_camera(pcdev)) {
>               ret = mx27_camera_emma_prp_reset(pcdev);
>               if (ret)
>                       return ret;
> -     } else if (cpu_is_mx25()) {
> +     } else if (is_imx25_camera(pcdev)) {
>               writel((bytesperline * icd->user_height) >> 2,
>                               pcdev->base_csi + CSIRXCNT);
>               writel((bytesperline << 16) | icd->user_height,
> @@ -1351,7 +1383,7 @@ static int mx2_camera_try_fmt(struct soc_camera_device 
> *icd,
>       /* FIXME: implement MX27 limits */
>  
>       /* limit to MX25 hardware capabilities */
> -     if (cpu_is_mx25()) {
> +     if (is_imx25_camera(pcdev)) {
>               if (xlate->host_fmt->bits_per_sample <= 8)
>                       width_limit = 0xffff * 4;
>               else
> @@ -1685,6 +1717,20 @@ static int __devinit mx2_camera_probe(struct 
> platform_device *pdev)
>               goto exit;
>       }
>  
> +     pcdev->devtype = pdev->id_entry->driver_data;
> +     switch (pcdev->devtype) {
> +     case IMX25_CAMERA:
> +             pcdev->reg_csisr = CSISR_IMX25;
> +             pcdev->reg_csicr3 = CSICR3_IMX25;
> +             break;
> +     case IMX27_CAMERA:
> +             pcdev->reg_csisr = CSISR_IMX27;
> +             pcdev->reg_csicr3 = CSICR3_IMX27;
> +             break;
> +     default:
> +             break;
> +     }
> +
>       pcdev->clk_csi = devm_clk_get(&pdev->dev, "ahb");
>       if (IS_ERR(pcdev->clk_csi)) {
>               dev_err(&pdev->dev, "Could not get csi clock\n");
> @@ -1722,7 +1768,7 @@ static int __devinit mx2_camera_probe(struct 
> platform_device *pdev)
>       pcdev->dev = &pdev->dev;
>       platform_set_drvdata(pdev, pcdev);
>  
> -     if (cpu_is_mx25()) {
> +     if (is_imx25_camera(pcdev)) {
>               err = devm_request_irq(&pdev->dev, irq_csi, mx25_camera_irq, 0,
>                                      MX2_CAM_DRV_NAME, pcdev);
>               if (err) {
> @@ -1731,7 +1777,7 @@ static int __devinit mx2_camera_probe(struct 
> platform_device *pdev)
>               }
>       }
>  
> -     if (cpu_is_mx27()) {
> +     if (is_imx27_camera(pcdev)) {
>               err = mx27_camera_emma_init(pdev);
>               if (err)
>                       goto exit;
> @@ -1742,7 +1788,7 @@ static int __devinit mx2_camera_probe(struct 
> platform_device *pdev)
>       pcdev->soc_host.priv            = pcdev;
>       pcdev->soc_host.v4l2_dev.dev    = &pdev->dev;
>       pcdev->soc_host.nr              = pdev->id;
> -     if (cpu_is_mx25())
> +     if (is_imx25_camera(pcdev))
>               pcdev->soc_host.capabilities = SOCAM_HOST_CAP_STRIDE;
>  
>       pcdev->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev);
> @@ -1762,7 +1808,7 @@ static int __devinit mx2_camera_probe(struct 
> platform_device *pdev)
>  exit_free_emma:
>       vb2_dma_contig_cleanup_ctx(pcdev->alloc_ctx);
>  eallocctx:
> -     if (cpu_is_mx27()) {
> +     if (is_imx27_camera(pcdev)) {
>               clk_disable_unprepare(pcdev->clk_emma_ipg);
>               clk_disable_unprepare(pcdev->clk_emma_ahb);
>       }
> @@ -1780,7 +1826,7 @@ static int __devexit mx2_camera_remove(struct 
> platform_device *pdev)
>  
>       vb2_dma_contig_cleanup_ctx(pcdev->alloc_ctx);
>  
> -     if (cpu_is_mx27()) {
> +     if (is_imx27_camera(pcdev)) {
>               clk_disable_unprepare(pcdev->clk_emma_ipg);
>               clk_disable_unprepare(pcdev->clk_emma_ahb);
>       }
> @@ -1794,6 +1840,7 @@ static struct platform_driver mx2_camera_driver = {
>       .driver         = {
>               .name   = MX2_CAM_DRV_NAME,
>       },
> +     .id_table       = mx2_camera_devtype,
>       .remove         = __devexit_p(mx2_camera_remove),
>  };
>  
> -- 
> 1.7.9.5
> 

---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer
http://www.open-technology.de/
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to