[media] i.MX: coda: Add platform support for coda in i.MX27

i.MX27 SoC include a codadx6 codec that is able to encode
and decode H.264, H.263 and MPEG4.
Signed-off-by: Javier Martin <javier.martin@vista-silicon.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

arch/arm/mach-imx/clk-imx27.c

@@ -239,8 +239,8 @@ int __init mx27_clocks_init(unsigned long fref)
 	clk_register_clkdev(clk[ssi1_ipg_gate], NULL, "imx-ssi.0");
 	clk_register_clkdev(clk[ssi2_ipg_gate], NULL, "imx-ssi.1");
 	clk_register_clkdev(clk[nfc_baud_gate], NULL, "mxc_nand.0");
-	clk_register_clkdev(clk[vpu_baud_gate], "per", "imx-vpu");
-	clk_register_clkdev(clk[vpu_ahb_gate], "ahb", "imx-vpu");
+	clk_register_clkdev(clk[vpu_baud_gate], "per", "coda-imx27.0");
+	clk_register_clkdev(clk[vpu_ahb_gate], "ahb", "coda-imx27.0");
 	clk_register_clkdev(clk[dma_ahb_gate], "ahb", "imx-dma");
 	clk_register_clkdev(clk[dma_ipg_gate], "ipg", "imx-dma");
 	clk_register_clkdev(clk[fec_ipg_gate], "ipg", "imx27-fec.0");

arch/arm/mach-imx/devices-imx27.h

@@ -17,6 +17,10 @@ extern const struct imx_fsl_usb2_udc_data imx27_fsl_usb2_udc_data;
 #define imx27_add_fsl_usb2_udc(pdata)	\
 	imx_add_fsl_usb2_udc(&imx27_fsl_usb2_udc_data, pdata)
 
+extern const struct imx_imx27_coda_data imx27_coda_data;
+#define imx27_add_coda()	\
+	imx_add_imx27_coda(&imx27_coda_data)
+
 extern const struct imx_imx2_wdt_data imx27_imx2_wdt_data;
 #define imx27_add_imx2_wdt()	\
 	imx_add_imx2_wdt(&imx27_imx2_wdt_data)

arch/arm/plat-mxc/devices/Kconfig

@@ -16,6 +16,10 @@ config IMX_HAVE_PLATFORM_GPIO_KEYS
 config IMX_HAVE_PLATFORM_IMX21_HCD
 	bool
 
+config IMX_HAVE_PLATFORM_IMX27_CODA
+	bool
+	default y if SOC_IMX27
+
 config IMX_HAVE_PLATFORM_IMX2_WDT
 	bool
 

arch/arm/plat-mxc/devices/Makefile

@@ -4,6 +4,7 @@ obj-$(CONFIG_IMX_HAVE_PLATFORM_FSL_USB2_UDC) += platform-fsl-usb2-udc.o
 obj-$(CONFIG_IMX_HAVE_PLATFORM_GPIO_KEYS) += platform-gpio_keys.o
 obj-y += platform-gpio-mxc.o
 obj-$(CONFIG_IMX_HAVE_PLATFORM_IMX21_HCD) += platform-imx21-hcd.o
+obj-$(CONFIG_IMX_HAVE_PLATFORM_IMX27_CODA) += platform-imx27-coda.o
 obj-$(CONFIG_IMX_HAVE_PLATFORM_IMX2_WDT) += platform-imx2-wdt.o
 obj-$(CONFIG_IMX_HAVE_PLATFORM_IMXDI_RTC) += platform-imxdi_rtc.o
 obj-y += platform-imx-dma.o

arch/arm/plat-mxc/devices/platform-imx27-coda.c

+/*
+ * Copyright (C) 2012 Vista Silicon
+ * Javier Martin <javier.martin@vista-silicon.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation.
+ */
+
+#include <mach/hardware.h>
+#include <mach/devices-common.h>
+
+#ifdef CONFIG_SOC_IMX27
+const struct imx_imx27_coda_data imx27_coda_data __initconst = {
+	.iobase = MX27_VPU_BASE_ADDR,
+	.iosize = SZ_512,
+	.irq = MX27_INT_VPU,
+};
+#endif
+
+struct platform_device *__init imx_add_imx27_coda(
+		const struct imx_imx27_coda_data *data)
+{
+	struct resource res[] = {
+		{
+			.start = data->iobase,
+			.end = data->iobase + data->iosize - 1,
+			.flags = IORESOURCE_MEM,
+		}, {
+			.start = data->irq,
+			.end = data->irq,
+			.flags = IORESOURCE_IRQ,
+		},
+	};
+	return imx_add_platform_device_dmamask("coda-imx27", 0, res, 2, NULL,
+					0, DMA_BIT_MASK(32));
+}

arch/arm/plat-mxc/include/mach/devices-common.h

@@ -83,6 +83,14 @@ struct platform_device *__init imx_add_imx21_hcd(
 		const struct imx_imx21_hcd_data *data,
 		const struct mx21_usbh_platform_data *pdata);
 
+struct imx_imx27_coda_data {
+	resource_size_t iobase;
+	resource_size_t iosize;
+	resource_size_t irq;
+};
+struct platform_device *__init imx_add_imx27_coda(
+		const struct imx_imx27_coda_data *data);
+
 struct imx_imx2_wdt_data {
 	int id;
 	resource_size_t iobase;