media: mx2_camera: remove cpu_is_xxx by using platform_device_id
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.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Tested-by: Javier Martin <javier.martin@vista-silicon.com> Cc: linux-media@vger.kernel.org
This commit is contained in:
Shawn Guo
parent
e51d0f0ac4
commit
27b76486a3
5 changed files with 85 additions and 35 deletions
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@ -231,9 +231,9 @@ int __init mx25_clocks_init(void)
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clk_register_clkdev(clk[esdhc2_ipg_per], "per", "sdhci-esdhc-imx25.1");
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clk_register_clkdev(clk[esdhc2_ipg], "ipg", "sdhci-esdhc-imx25.1");
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clk_register_clkdev(clk[esdhc2_ahb], "ahb", "sdhci-esdhc-imx25.1");
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clk_register_clkdev(clk[csi_ipg_per], "per", "mx2-camera.0");
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clk_register_clkdev(clk[csi_ipg], "ipg", "mx2-camera.0");
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clk_register_clkdev(clk[csi_ahb], "ahb", "mx2-camera.0");
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clk_register_clkdev(clk[csi_ipg_per], "per", "imx25-camera.0");
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clk_register_clkdev(clk[csi_ipg], "ipg", "imx25-camera.0");
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clk_register_clkdev(clk[csi_ahb], "ahb", "imx25-camera.0");
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clk_register_clkdev(clk[dummy], "audmux", NULL);
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clk_register_clkdev(clk[can1_ipg], NULL, "flexcan.0");
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clk_register_clkdev(clk[can2_ipg], NULL, "flexcan.1");
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@ -224,7 +224,7 @@ int __init mx27_clocks_init(unsigned long fref)
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clk_register_clkdev(clk[per3_gate], "per", "imx-fb.0");
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clk_register_clkdev(clk[lcdc_ipg_gate], "ipg", "imx-fb.0");
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clk_register_clkdev(clk[lcdc_ahb_gate], "ahb", "imx-fb.0");
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clk_register_clkdev(clk[csi_ahb_gate], "ahb", "mx2-camera.0");
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clk_register_clkdev(clk[csi_ahb_gate], "ahb", "imx27-camera.0");
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clk_register_clkdev(clk[usb_div], "per", "fsl-usb2-udc");
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clk_register_clkdev(clk[usb_ipg_gate], "ipg", "fsl-usb2-udc");
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clk_register_clkdev(clk[usb_ahb_gate], "ahb", "fsl-usb2-udc");
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@ -251,8 +251,8 @@ int __init mx27_clocks_init(unsigned long fref)
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clk_register_clkdev(clk[i2c2_ipg_gate], NULL, "imx21-i2c.1");
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clk_register_clkdev(clk[owire_ipg_gate], NULL, "mxc_w1.0");
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clk_register_clkdev(clk[kpp_ipg_gate], NULL, "imx-keypad");
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clk_register_clkdev(clk[emma_ahb_gate], "emma-ahb", "mx2-camera.0");
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clk_register_clkdev(clk[emma_ipg_gate], "emma-ipg", "mx2-camera.0");
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clk_register_clkdev(clk[emma_ahb_gate], "emma-ahb", "imx27-camera.0");
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clk_register_clkdev(clk[emma_ipg_gate], "emma-ipg", "imx27-camera.0");
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clk_register_clkdev(clk[emma_ahb_gate], "ahb", "m2m-emmaprp.0");
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clk_register_clkdev(clk[emma_ipg_gate], "ipg", "m2m-emmaprp.0");
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clk_register_clkdev(clk[iim_ipg_gate], "iim", NULL);
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@ -220,6 +220,7 @@ struct platform_device *__init imx_add_mx1_camera(
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#include <linux/platform_data/camera-mx2.h>
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struct imx_mx2_camera_data {
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const char *devid;
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resource_size_t iobasecsi;
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resource_size_t iosizecsi;
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resource_size_t irqcsi;
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@ -9,14 +9,16 @@
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#include <mach/hardware.h>
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#include "devices-common.h"
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#define imx_mx2_camera_data_entry_single(soc) \
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#define imx_mx2_camera_data_entry_single(soc, _devid) \
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{ \
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.devid = _devid, \
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.iobasecsi = soc ## _CSI_BASE_ADDR, \
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.iosizecsi = SZ_4K, \
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.irqcsi = soc ## _INT_CSI, \
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}
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#define imx_mx2_camera_data_entry_single_emma(soc) \
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#define imx_mx2_camera_data_entry_single_emma(soc, _devid) \
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{ \
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.devid = _devid, \
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.iobasecsi = soc ## _CSI_BASE_ADDR, \
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.iosizecsi = SZ_32, \
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.irqcsi = soc ## _INT_CSI, \
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@ -27,12 +29,12 @@
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#ifdef CONFIG_SOC_IMX25
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const struct imx_mx2_camera_data imx25_mx2_camera_data __initconst =
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imx_mx2_camera_data_entry_single(MX25);
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imx_mx2_camera_data_entry_single(MX25, "imx25-camera");
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#endif /* ifdef CONFIG_SOC_IMX25 */
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#ifdef CONFIG_SOC_IMX27
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const struct imx_mx2_camera_data imx27_mx2_camera_data __initconst =
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imx_mx2_camera_data_entry_single_emma(MX27);
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imx_mx2_camera_data_entry_single_emma(MX27, "imx27-camera");
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#endif /* ifdef CONFIG_SOC_IMX27 */
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struct platform_device *__init imx_add_mx2_camera(
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@ -58,7 +60,7 @@ struct platform_device *__init imx_add_mx2_camera(
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.flags = IORESOURCE_IRQ,
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},
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};
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return imx_add_platform_device_dmamask("mx2-camera", 0,
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return imx_add_platform_device_dmamask(data->devid, 0,
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res, data->iobaseemmaprp ? 4 : 2,
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pdata, sizeof(*pdata), DMA_BIT_MASK(32));
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}
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@ -41,7 +41,6 @@
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#include <linux/videodev2.h>
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#include <linux/platform_data/camera-mx2.h>
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#include <mach/hardware.h>
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#include <asm/dma.h>
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@ -121,11 +120,13 @@
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#define CSICR1 0x00
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#define CSICR2 0x04
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#define CSISR (cpu_is_mx27() ? 0x08 : 0x18)
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#define CSISR_IMX25 0x18
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#define CSISR_IMX27 0x08
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#define CSISTATFIFO 0x0c
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#define CSIRFIFO 0x10
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#define CSIRXCNT 0x14
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#define CSICR3 (cpu_is_mx27() ? 0x1C : 0x08)
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#define CSICR3_IMX25 0x08
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#define CSICR3_IMX27 0x1c
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#define CSIDMASA_STATFIFO 0x20
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#define CSIDMATA_STATFIFO 0x24
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#define CSIDMASA_FB1 0x28
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@ -268,6 +269,11 @@ struct mx2_buffer {
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struct mx2_buf_internal internal;
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};
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enum mx2_camera_type {
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IMX25_CAMERA,
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IMX27_CAMERA,
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};
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struct mx2_camera_dev {
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struct device *dev;
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struct soc_camera_host soc_host;
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@ -291,6 +297,9 @@ struct mx2_camera_dev {
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struct mx2_buffer *fb2_active;
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u32 csicr1;
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u32 reg_csisr;
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u32 reg_csicr3;
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enum mx2_camera_type devtype;
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struct mx2_buf_internal buf_discard[2];
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void *discard_buffer;
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@ -303,6 +312,29 @@ struct mx2_camera_dev {
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struct vb2_alloc_ctx *alloc_ctx;
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};
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static struct platform_device_id mx2_camera_devtype[] = {
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{
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.name = "imx25-camera",
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.driver_data = IMX25_CAMERA,
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}, {
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.name = "imx27-camera",
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.driver_data = IMX27_CAMERA,
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}, {
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/* sentinel */
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}
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};
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MODULE_DEVICE_TABLE(platform, mx2_camera_devtype);
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static inline int is_imx25_camera(struct mx2_camera_dev *pcdev)
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{
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return pcdev->devtype == IMX25_CAMERA;
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}
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static inline int is_imx27_camera(struct mx2_camera_dev *pcdev)
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{
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return pcdev->devtype == IMX27_CAMERA;
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}
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static struct mx2_buffer *mx2_ibuf_to_buf(struct mx2_buf_internal *int_buf)
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{
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return container_of(int_buf, struct mx2_buffer, internal);
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@ -434,9 +466,9 @@ static void mx2_camera_deactivate(struct mx2_camera_dev *pcdev)
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clk_disable_unprepare(pcdev->clk_csi);
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writel(0, pcdev->base_csi + CSICR1);
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if (cpu_is_mx27()) {
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if (is_imx27_camera(pcdev)) {
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writel(0, pcdev->base_emma + PRP_CNTL);
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} else if (cpu_is_mx25()) {
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} else if (is_imx25_camera(pcdev)) {
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spin_lock_irqsave(&pcdev->lock, flags);
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pcdev->fb1_active = NULL;
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pcdev->fb2_active = NULL;
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@ -466,7 +498,7 @@ static int mx2_camera_add_device(struct soc_camera_device *icd)
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csicr1 = CSICR1_MCLKEN;
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if (cpu_is_mx27())
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if (is_imx27_camera(pcdev))
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csicr1 |= CSICR1_PRP_IF_EN | CSICR1_FCC |
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CSICR1_RXFF_LEVEL(0);
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@ -542,7 +574,7 @@ static void mx25_camera_frame_done(struct mx2_camera_dev *pcdev, int fb,
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static irqreturn_t mx25_camera_irq(int irq_csi, void *data)
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{
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struct mx2_camera_dev *pcdev = data;
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u32 status = readl(pcdev->base_csi + CSISR);
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u32 status = readl(pcdev->base_csi + pcdev->reg_csisr);
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if (status & CSISR_DMA_TSF_FB1_INT)
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mx25_camera_frame_done(pcdev, 1, MX2_STATE_DONE);
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@ -551,7 +583,7 @@ static irqreturn_t mx25_camera_irq(int irq_csi, void *data)
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/* FIXME: handle CSISR_RFF_OR_INT */
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writel(status, pcdev->base_csi + CSISR);
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writel(status, pcdev->base_csi + pcdev->reg_csisr);
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return IRQ_HANDLED;
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}
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@ -636,7 +668,7 @@ static void mx2_videobuf_queue(struct vb2_buffer *vb)
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buf->state = MX2_STATE_QUEUED;
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list_add_tail(&buf->internal.queue, &pcdev->capture);
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if (cpu_is_mx25()) {
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if (is_imx25_camera(pcdev)) {
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u32 csicr3, dma_inten = 0;
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if (pcdev->fb1_active == NULL) {
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@ -655,20 +687,20 @@ static void mx2_videobuf_queue(struct vb2_buffer *vb)
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list_del(&buf->internal.queue);
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buf->state = MX2_STATE_ACTIVE;
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csicr3 = readl(pcdev->base_csi + CSICR3);
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csicr3 = readl(pcdev->base_csi + pcdev->reg_csicr3);
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/* Reflash DMA */
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writel(csicr3 | CSICR3_DMA_REFLASH_RFF,
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pcdev->base_csi + CSICR3);
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pcdev->base_csi + pcdev->reg_csicr3);
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/* clear & enable interrupts */
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writel(dma_inten, pcdev->base_csi + CSISR);
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writel(dma_inten, pcdev->base_csi + pcdev->reg_csisr);
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pcdev->csicr1 |= dma_inten;
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writel(pcdev->csicr1, pcdev->base_csi + CSICR1);
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/* enable DMA */
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csicr3 |= CSICR3_DMA_REQ_EN_RFF | CSICR3_RXFF_LEVEL(1);
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writel(csicr3, pcdev->base_csi + CSICR3);
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writel(csicr3, pcdev->base_csi + pcdev->reg_csicr3);
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}
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}
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@ -712,7 +744,7 @@ static void mx2_videobuf_release(struct vb2_buffer *vb)
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*/
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spin_lock_irqsave(&pcdev->lock, flags);
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if (cpu_is_mx25() && buf->state == MX2_STATE_ACTIVE) {
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if (is_imx25_camera(pcdev) && buf->state == MX2_STATE_ACTIVE) {
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if (pcdev->fb1_active == buf) {
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pcdev->csicr1 &= ~CSICR1_FB1_DMA_INTEN;
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writel(0, pcdev->base_csi + CSIDMASA_FB1);
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@ -835,7 +867,7 @@ static int mx2_start_streaming(struct vb2_queue *q, unsigned int count)
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unsigned long phys;
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int bytesperline;
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if (cpu_is_mx27()) {
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if (is_imx27_camera(pcdev)) {
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unsigned long flags;
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if (count < 2)
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return -EINVAL;
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@ -930,7 +962,7 @@ static int mx2_stop_streaming(struct vb2_queue *q)
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void *b;
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u32 cntl;
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if (cpu_is_mx27()) {
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if (is_imx27_camera(pcdev)) {
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spin_lock_irqsave(&pcdev->lock, flags);
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cntl = readl(pcdev->base_emma + PRP_CNTL);
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@ -1082,11 +1114,11 @@ static int mx2_camera_set_bus_param(struct soc_camera_device *icd)
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if (bytesperline < 0)
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return bytesperline;
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if (cpu_is_mx27()) {
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if (is_imx27_camera(pcdev)) {
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ret = mx27_camera_emma_prp_reset(pcdev);
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if (ret)
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return ret;
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} else if (cpu_is_mx25()) {
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} else if (is_imx25_camera(pcdev)) {
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writel((bytesperline * icd->user_height) >> 2,
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pcdev->base_csi + CSIRXCNT);
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writel((bytesperline << 16) | icd->user_height,
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@ -1392,7 +1424,7 @@ static int mx2_camera_try_fmt(struct soc_camera_device *icd,
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/* FIXME: implement MX27 limits */
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/* limit to MX25 hardware capabilities */
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if (cpu_is_mx25()) {
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if (is_imx25_camera(pcdev)) {
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if (xlate->host_fmt->bits_per_sample <= 8)
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width_limit = 0xffff * 4;
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else
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@ -1726,6 +1758,20 @@ static int __devinit mx2_camera_probe(struct platform_device *pdev)
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goto exit;
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}
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pcdev->devtype = pdev->id_entry->driver_data;
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switch (pcdev->devtype) {
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case IMX25_CAMERA:
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pcdev->reg_csisr = CSISR_IMX25;
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pcdev->reg_csicr3 = CSICR3_IMX25;
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break;
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case IMX27_CAMERA:
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pcdev->reg_csisr = CSISR_IMX27;
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pcdev->reg_csicr3 = CSICR3_IMX27;
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break;
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default:
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break;
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}
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pcdev->clk_csi = devm_clk_get(&pdev->dev, "ahb");
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if (IS_ERR(pcdev->clk_csi)) {
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dev_err(&pdev->dev, "Could not get csi clock\n");
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@ -1763,7 +1809,7 @@ static int __devinit mx2_camera_probe(struct platform_device *pdev)
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pcdev->dev = &pdev->dev;
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platform_set_drvdata(pdev, pcdev);
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if (cpu_is_mx25()) {
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if (is_imx25_camera(pcdev)) {
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err = devm_request_irq(&pdev->dev, irq_csi, mx25_camera_irq, 0,
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MX2_CAM_DRV_NAME, pcdev);
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if (err) {
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@ -1772,7 +1818,7 @@ static int __devinit mx2_camera_probe(struct platform_device *pdev)
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}
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}
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if (cpu_is_mx27()) {
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if (is_imx27_camera(pcdev)) {
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err = mx27_camera_emma_init(pdev);
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if (err)
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goto exit;
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@ -1789,7 +1835,7 @@ static int __devinit mx2_camera_probe(struct platform_device *pdev)
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pcdev->soc_host.priv = pcdev;
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pcdev->soc_host.v4l2_dev.dev = &pdev->dev;
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pcdev->soc_host.nr = pdev->id;
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if (cpu_is_mx25())
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if (is_imx25_camera(pcdev))
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pcdev->soc_host.capabilities = SOCAM_HOST_CAP_STRIDE;
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pcdev->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev);
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@ -1809,7 +1855,7 @@ static int __devinit mx2_camera_probe(struct platform_device *pdev)
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exit_free_emma:
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vb2_dma_contig_cleanup_ctx(pcdev->alloc_ctx);
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eallocctx:
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if (cpu_is_mx27()) {
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if (is_imx27_camera(pcdev)) {
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clk_disable_unprepare(pcdev->clk_emma_ipg);
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clk_disable_unprepare(pcdev->clk_emma_ahb);
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}
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@ -1827,7 +1873,7 @@ static int __devexit mx2_camera_remove(struct platform_device *pdev)
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vb2_dma_contig_cleanup_ctx(pcdev->alloc_ctx);
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if (cpu_is_mx27()) {
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if (is_imx27_camera(pcdev)) {
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clk_disable_unprepare(pcdev->clk_emma_ipg);
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clk_disable_unprepare(pcdev->clk_emma_ahb);
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}
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|
|
@ -1841,6 +1887,7 @@ static struct platform_driver mx2_camera_driver = {
|
|||
.driver = {
|
||||
.name = MX2_CAM_DRV_NAME,
|
||||
},
|
||||
.id_table = mx2_camera_devtype,
|
||||
.remove = __devexit_p(mx2_camera_remove),
|
||||
};
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue