dma: ipu: remove the use of ipu_platform_data

The struct ipu_platform_data is used by platform code to pass
MXC_IPU_IRQ_START to ipu-core driver.  We can save it by having
ipu-core driver call irq_alloc_descs to get the irq_base.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Dong Aisheng <dong.aisheng@linaro.org>

16 files changed, 28 insertions, 73 deletions

diff --git a/arch/arm/mach-imx/devices-imx31.h b/arch/arm/mach-imx/devices-imx31.h
index 488e241a6db6..911c2dac2452 100644
--- a/arch/arm/mach-imx/devices-imx31.h
+++ b/arch/arm/mach-imx/devices-imx31.h
@@ -42,8 +42,8 @@ extern const struct imx_imx_uart_1irq_data imx31_imx_uart_data[];
 #define imx31_add_imx_uart4(pdata)      imx31_add_imx_uart(4, pdata)
 
 extern const struct imx_ipu_core_data imx31_ipu_core_data;
-#define imx31_add_ipu_core(pdata)       \
-        imx_add_ipu_core(&imx31_ipu_core_data, pdata)
+#define imx31_add_ipu_core()            \
+        imx_add_ipu_core(&imx31_ipu_core_data)
 #define imx31_alloc_mx3_camera(pdata)   \
         imx_alloc_mx3_camera(&imx31_ipu_core_data, pdata)
 #define imx31_add_mx3_sdc_fb(pdata)     \
diff --git a/arch/arm/mach-imx/devices-imx35.h b/arch/arm/mach-imx/devices-imx35.h
index 7b99ef0bb501..6fb907290f47 100644
--- a/arch/arm/mach-imx/devices-imx35.h
+++ b/arch/arm/mach-imx/devices-imx35.h
@@ -50,8 +50,8 @@ extern const struct imx_imx_uart_1irq_data imx35_imx_uart_data[];
 #define imx35_add_imx_uart2(pdata)      imx35_add_imx_uart(2, pdata)
 
 extern const struct imx_ipu_core_data imx35_ipu_core_data;
-#define imx35_add_ipu_core(pdata)       \
-        imx_add_ipu_core(&imx35_ipu_core_data, pdata)
+#define imx35_add_ipu_core()            \
+        imx_add_ipu_core(&imx35_ipu_core_data)
 #define imx35_alloc_mx3_camera(pdata)   \
         imx_alloc_mx3_camera(&imx35_ipu_core_data, pdata)
 #define imx35_add_mx3_sdc_fb(pdata)     \
diff --git a/arch/arm/mach-imx/eukrea_mbimxsd35-baseboard.c b/arch/arm/mach-imx/eukrea_mbimxsd35-baseboard.c
index 557f6c486053..6e9dd12a6961 100644
--- a/arch/arm/mach-imx/eukrea_mbimxsd35-baseboard.c
+++ b/arch/arm/mach-imx/eukrea_mbimxsd35-baseboard.c
@@ -95,10 +95,6 @@ static const struct fb_videomode fb_modedb[] = {
         },
 };
 
-static const struct ipu_platform_data mx3_ipu_data __initconst = {
-        .irq_base = MXC_IPU_IRQ_START,
-};
-
 static struct mx3fb_platform_data mx3fb_pdata __initdata = {
         .name           = "CMO-QVGA",
         .mode           = fb_modedb,
@@ -287,7 +283,7 @@ void __init eukrea_mbimxsd35_baseboard_init(void)
                 printk(KERN_ERR "error setting mbimxsd pads !\n");
 
         imx35_add_imx_uart1(&uart_pdata);
-        imx35_add_ipu_core(&mx3_ipu_data);
+        imx35_add_ipu_core();
         imx35_add_mx3_sdc_fb(&mx3fb_pdata);
 
         imx35_add_imx_ssi(0, &eukrea_mbimxsd_ssi_pdata);
diff --git a/arch/arm/mach-imx/mach-armadillo5x0.c b/arch/arm/mach-imx/mach-armadillo5x0.c
index f83c5c683575..2c6ab3273f9e 100644
--- a/arch/arm/mach-imx/mach-armadillo5x0.c
+++ b/arch/arm/mach-imx/mach-armadillo5x0.c
@@ -367,10 +367,6 @@ static const struct fb_videomode fb_modedb[] = {
         },
 };
 
-static const struct ipu_platform_data mx3_ipu_data __initconst = {
-        .irq_base = MXC_IPU_IRQ_START,
-};
-
 static struct mx3fb_platform_data mx3fb_pdata __initdata = {
         .name           = "CRT-VGA",
         .mode           = fb_modedb,
@@ -517,7 +513,7 @@ static void __init armadillo5x0_init(void)
         imx31_add_mxc_mmc(0, &sdhc_pdata);
 
         /* Register FB */
-        imx31_add_ipu_core(&mx3_ipu_data);
+        imx31_add_ipu_core();
         imx31_add_mx3_sdc_fb(&mx3fb_pdata);
 
         /* Register NOR Flash */
diff --git a/arch/arm/mach-imx/mach-mx31_3ds.c b/arch/arm/mach-imx/mach-mx31_3ds.c
index ecdba0497e7e..618935e1e325 100644
--- a/arch/arm/mach-imx/mach-mx31_3ds.c
+++ b/arch/arm/mach-imx/mach-mx31_3ds.c
@@ -274,10 +274,6 @@ static const struct fb_videomode fb_modedb[] = {
         },
 };
 
-static struct ipu_platform_data mx3_ipu_data = {
-        .irq_base = MXC_IPU_IRQ_START,
-};
-
 static struct mx3fb_platform_data mx3fb_pdata __initdata = {
         .name           = "Epson-VGA",
         .mode           = fb_modedb,
@@ -743,7 +739,7 @@ static void __init mx31_3ds_init(void)
         imx31_add_mxc_mmc(0, &sdhc1_pdata);
 
         imx31_add_spi_imx0(&spi0_pdata);
-        imx31_add_ipu_core(&mx3_ipu_data);
+        imx31_add_ipu_core();
         imx31_add_mx3_sdc_fb(&mx3fb_pdata);
 
         /* CSI */
diff --git a/arch/arm/mach-imx/mach-mx31moboard.c b/arch/arm/mach-imx/mach-mx31moboard.c
index f0d26db7719e..54d9e5d9fcec 100644
--- a/arch/arm/mach-imx/mach-mx31moboard.c
+++ b/arch/arm/mach-imx/mach-mx31moboard.c
@@ -473,10 +473,6 @@ static const struct gpio_led_platform_data mx31moboard_led_pdata __initconst = {
         .leds           = mx31moboard_leds,
 };
 
-static const struct ipu_platform_data mx3_ipu_data __initconst = {
-        .irq_base = MXC_IPU_IRQ_START,
-};
-
 static struct platform_device *devices[] __initdata = {
         &mx31moboard_flash,
 };
@@ -494,7 +490,7 @@ static int __init mx31moboard_init_cam(void)
         int dma, ret = -ENOMEM;
         struct platform_device *pdev;
 
-        imx31_add_ipu_core(&mx3_ipu_data);
+        imx31_add_ipu_core();
 
         pdev = imx31_alloc_mx3_camera(&camera_pdata);
         if (IS_ERR(pdev))
diff --git a/arch/arm/mach-imx/mach-mx35_3ds.c b/arch/arm/mach-imx/mach-mx35_3ds.c
index fa1ea74dfdd3..ad63e6ebee6d 100644
--- a/arch/arm/mach-imx/mach-mx35_3ds.c
+++ b/arch/arm/mach-imx/mach-mx35_3ds.c
@@ -80,10 +80,6 @@ static const struct fb_videomode fb_modedb[] = {
          },
 };
 
-static const struct ipu_platform_data mx3_ipu_data __initconst = {
-        .irq_base = MXC_IPU_IRQ_START,
-};
-
 static struct mx3fb_platform_data mx3fb_pdata __initdata = {
         .name = "Ceramate-CLAA070VC01",
         .mode = fb_modedb,
@@ -297,10 +293,6 @@ err:
         return ret;
 }
 
-static const struct ipu_platform_data mx35_3ds_ipu_data __initconst = {
-        .irq_base = MXC_IPU_IRQ_START,
-};
-
 static struct i2c_board_info mx35_3ds_i2c_camera = {
         I2C_BOARD_INFO("ov2640", 0x30),
 };
@@ -596,7 +588,7 @@ static void __init mx35_3ds_init(void)
         i2c_register_board_info(
                 0, i2c_devices_3ds, ARRAY_SIZE(i2c_devices_3ds));
 
-        imx35_add_ipu_core(&mx35_3ds_ipu_data);
+        imx35_add_ipu_core();
         platform_device_register(&mx35_3ds_ov2640);
         imx35_3ds_init_camera();
 
diff --git a/arch/arm/mach-imx/mach-pcm037.c b/arch/arm/mach-imx/mach-pcm037.c
index 551a035f0c2d..ded4ed9def9e 100644
--- a/arch/arm/mach-imx/mach-pcm037.c
+++ b/arch/arm/mach-imx/mach-pcm037.c
@@ -441,10 +441,6 @@ static struct platform_device *devices[] __initdata = {
         &pcm037_mt9v022,
 };
 
-static const struct ipu_platform_data mx3_ipu_data __initconst = {
-        .irq_base = MXC_IPU_IRQ_START,
-};
-
 static const struct fb_videomode fb_modedb[] = {
         {
                 /* 240x320 @ 60 Hz Sharp */
@@ -648,7 +644,7 @@ static void __init pcm037_init(void)
 
         imx31_add_mxc_nand(&pcm037_nand_board_info);
         imx31_add_mxc_mmc(0, &sdhc_pdata);
-        imx31_add_ipu_core(&mx3_ipu_data);
+        imx31_add_ipu_core();
         imx31_add_mx3_sdc_fb(&mx3fb_pdata);
 
         /* CSI */
diff --git a/arch/arm/mach-imx/mach-pcm043.c b/arch/arm/mach-imx/mach-pcm043.c
index 73585f55cca0..133908f94f7e 100644
--- a/arch/arm/mach-imx/mach-pcm043.c
+++ b/arch/arm/mach-imx/mach-pcm043.c
@@ -76,10 +76,6 @@ static const struct fb_videomode fb_modedb[] = {
         },
 };
 
-static const struct ipu_platform_data mx3_ipu_data __initconst = {
-        .irq_base = MXC_IPU_IRQ_START,
-};
-
 static struct mx3fb_platform_data mx3fb_pdata __initdata = {
         .name           = "Sharp-LQ035Q7",
         .mode           = fb_modedb,
@@ -376,7 +372,7 @@ static void __init pcm043_init(void)
 
         imx35_add_imx_i2c0(&pcm043_i2c0_data);
 
-        imx35_add_ipu_core(&mx3_ipu_data);
+        imx35_add_ipu_core();
         imx35_add_mx3_sdc_fb(&mx3fb_pdata);
 
         if (otg_mode_host) {
diff --git a/arch/arm/mach-imx/mach-vpr200.c b/arch/arm/mach-imx/mach-vpr200.c
index e36eb2c40f41..1aa562285960 100644
--- a/arch/arm/mach-imx/mach-vpr200.c
+++ b/arch/arm/mach-imx/mach-vpr200.c
@@ -87,10 +87,6 @@ static const struct fb_videomode fb_modedb[] = {
         }
 };
 
-static const struct ipu_platform_data mx3_ipu_data __initconst = {
-        .irq_base = MXC_IPU_IRQ_START,
-};
-
 static struct mx3fb_platform_data mx3fb_pdata __initdata = {
         .name           = "PT0708048",
         .mode           = fb_modedb,
@@ -290,7 +286,7 @@ static void __init vpr200_board_init(void)
         imx35_add_imx_uart0(NULL);
         imx35_add_imx_uart2(NULL);
 
-        imx35_add_ipu_core(&mx3_ipu_data);
+        imx35_add_ipu_core();
         imx35_add_mx3_sdc_fb(&mx3fb_pdata);
 
         imx35_add_fsl_usb2_udc(&otg_device_pdata);
diff --git a/arch/arm/mach-imx/mx31lilly-db.c b/arch/arm/mach-imx/mx31lilly-db.c
index 2df625bdc71e..29e890f92055 100644
--- a/arch/arm/mach-imx/mx31lilly-db.c
+++ b/arch/arm/mach-imx/mx31lilly-db.c
@@ -162,10 +162,6 @@ static const struct imxmmc_platform_data mmc_pdata __initconst = {
 };
 
 /* Framebuffer support */
-static const struct ipu_platform_data ipu_data __initconst = {
-        .irq_base = MXC_IPU_IRQ_START,
-};
-
 static const struct fb_videomode fb_modedb = {
         /* 640x480 TFT panel (IPS-056T) */
         .name           = "CRT-VGA",
@@ -199,7 +195,7 @@ static void __init mx31lilly_init_fb(void)
                 return;
         }
 
-        imx31_add_ipu_core(&ipu_data);
+        imx31_add_ipu_core();
         imx31_add_mx3_sdc_fb(&fb_pdata);
         gpio_direction_output(LCD_VCC_EN_GPIO, 1);
 }
diff --git a/arch/arm/plat-mxc/devices/platform-ipu-core.c b/arch/arm/plat-mxc/devices/platform-ipu-core.c
index 79d340ae0af1..d1e33cc6f12e 100644
--- a/arch/arm/plat-mxc/devices/platform-ipu-core.c
+++ b/arch/arm/plat-mxc/devices/platform-ipu-core.c
@@ -30,8 +30,7 @@ const struct imx_ipu_core_data imx35_ipu_core_data __initconst =
 static struct platform_device *imx_ipu_coredev __initdata;
 
 struct platform_device *__init imx_add_ipu_core(
-                const struct imx_ipu_core_data *data,
-                const struct ipu_platform_data *pdata)
+                const struct imx_ipu_core_data *data)
 {
         /* The resource order is important! */
         struct resource res[] = {
@@ -55,7 +54,7 @@ struct platform_device *__init imx_add_ipu_core(
         };
 
         return imx_ipu_coredev = imx_add_platform_device("ipu-core", -1,
-                        res, ARRAY_SIZE(res), pdata, sizeof(*pdata));
+                        res, ARRAY_SIZE(res), NULL, 0);
 }
 
 struct platform_device *__init imx_alloc_mx3_camera(
diff --git a/arch/arm/plat-mxc/include/mach/devices-common.h b/arch/arm/plat-mxc/include/mach/devices-common.h
index 1b2258daa05b..a7f5bb1084d7 100644
--- a/arch/arm/plat-mxc/include/mach/devices-common.h
+++ b/arch/arm/plat-mxc/include/mach/devices-common.h
@@ -183,7 +183,6 @@ struct platform_device *__init imx_add_imx_udc(
                 const struct imx_imx_udc_data *data,
                 const struct imxusb_platform_data *pdata);
 
-#include <mach/ipu.h>
 #include <mach/mx3fb.h>
 #include <mach/mx3_camera.h>
 struct imx_ipu_core_data {
@@ -192,8 +191,7 @@ struct imx_ipu_core_data {
         resource_size_t errirq;
 };
 struct platform_device *__init imx_add_ipu_core(
-                const struct imx_ipu_core_data *data,
-                const struct ipu_platform_data *pdata);
+                const struct imx_ipu_core_data *data);
 struct platform_device *__init imx_alloc_mx3_camera(
                 const struct imx_ipu_core_data *data,
                 const struct mx3_camera_pdata *pdata);
diff --git a/arch/arm/plat-mxc/include/mach/ipu.h b/arch/arm/plat-mxc/include/mach/ipu.h
index a9221f1cc1a0..539e559d18b2 100644
--- a/arch/arm/plat-mxc/include/mach/ipu.h
+++ b/arch/arm/plat-mxc/include/mach/ipu.h
@@ -110,10 +110,6 @@ enum ipu_rotate_mode {
         IPU_ROTATE_90_LEFT = 7,
 };
 
-struct ipu_platform_data {
-        unsigned int    irq_base;
-};
-
 /*
  * Enumeration of DI ports for ADC.
  */
diff --git a/drivers/dma/ipu/ipu_idmac.c b/drivers/dma/ipu/ipu_idmac.c
index 5ec72044ea4c..c7573e50aa14 100644
--- a/drivers/dma/ipu/ipu_idmac.c
+++ b/drivers/dma/ipu/ipu_idmac.c
@@ -1663,7 +1663,6 @@ static void __exit ipu_idmac_exit(struct ipu *ipu)
 
 static int __init ipu_probe(struct platform_device *pdev)
 {
-        struct ipu_platform_data *pdata = pdev->dev.platform_data;
         struct resource *mem_ipu, *mem_ic;
         int ret;
 
@@ -1671,7 +1670,7 @@ static int __init ipu_probe(struct platform_device *pdev)
 
         mem_ipu = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         mem_ic  = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-        if (!pdata || !mem_ipu || !mem_ic)
+        if (!mem_ipu || !mem_ic)
                 return -EINVAL;
 
         ipu_data.dev = &pdev->dev;
@@ -1688,10 +1687,9 @@ static int __init ipu_probe(struct platform_device *pdev)
                 goto err_noirq;
 
         ipu_data.irq_err = ret;
-        ipu_data.irq_base = pdata->irq_base;
 
-        dev_dbg(&pdev->dev, "fn irq %u, err irq %u, irq-base %u\n",
-                ipu_data.irq_fn, ipu_data.irq_err, ipu_data.irq_base);
+        dev_dbg(&pdev->dev, "fn irq %u, err irq %u\n",
+                ipu_data.irq_fn, ipu_data.irq_err);
 
         /* Remap IPU common registers */
         ipu_data.reg_ipu = ioremap(mem_ipu->start, resource_size(mem_ipu));
diff --git a/drivers/dma/ipu/ipu_irq.c b/drivers/dma/ipu/ipu_irq.c
index a71f55e72be9..fa95bcc3de1f 100644
--- a/drivers/dma/ipu/ipu_irq.c
+++ b/drivers/dma/ipu/ipu_irq.c
@@ -14,6 +14,7 @@
 #include <linux/clk.h>
 #include <linux/irq.h>
 #include <linux/io.h>
+#include <linux/module.h>
 
 #include <mach/ipu.h>
 
@@ -354,10 +355,12 @@ static struct irq_chip ipu_irq_chip = {
 /* Install the IRQ handler */
 int __init ipu_irq_attach_irq(struct ipu *ipu, struct platform_device *dev)
 {
-        struct ipu_platform_data *pdata = dev->dev.platform_data;
-        unsigned int irq, irq_base, i;
+        unsigned int irq, i;
+        int irq_base = irq_alloc_descs(-1, 0, CONFIG_MX3_IPU_IRQS,
+                                       numa_node_id());
 
-        irq_base = pdata->irq_base;
+        if (irq_base < 0)
+                return irq_base;
 
         for (i = 0; i < IPU_IRQ_NR_BANKS; i++)
                 irq_bank[i].ipu = ipu;
@@ -387,15 +390,16 @@ int __init ipu_irq_attach_irq(struct ipu *ipu, struct platform_device *dev)
         irq_set_handler_data(ipu->irq_err, ipu);
         irq_set_chained_handler(ipu->irq_err, ipu_irq_err);
 
+        ipu->irq_base = irq_base;
+
         return 0;
 }
 
 void ipu_irq_detach_irq(struct ipu *ipu, struct platform_device *dev)
 {
-        struct ipu_platform_data *pdata = dev->dev.platform_data;
         unsigned int irq, irq_base;
 
-        irq_base = pdata->irq_base;
+        irq_base = ipu->irq_base;
 
         irq_set_chained_handler(ipu->irq_fn, NULL);
         irq_set_handler_data(ipu->irq_fn, NULL);