siihdmi: add siihdmi_platform_data

SII9022 requires some platform specific data that was previously hardcoded into
the driver.  Create a new siihdmi_platform_data struct to actually get this
information.  This allows a particular vendor to supply the IRQ vector, the
reset method, the framebuffer id, as well as the vendor/description for the SPD
block currently.

arch/arm/mach-mx5/mx51_efikamx_i2c.c

@@ -23,6 +23,8 @@
 #include <mach/gpio.h>
 #include <mach/irqs.h>
 
+#include <linux/i2c/sii_hdmi.h>
+
 #include "devices.h"
 #include "mx51_pins.h"
 #include "iomux.h"
@@ -62,12 +64,25 @@ static struct mxc_lcd_platform_data mx51_efikamx_cs8556_data = {
 	.reset = mx51_efikamx_display_reset,
 };
 
+#if 0
 static struct mxc_lcd_platform_data mx51_efikamx_sii9022_data = {
 	.core_reg = "VGEN1",
 	.io_reg = "VGEN3",
 	.reset = mx51_efikamx_display_reset,
 	.hotplug_irq = IOMUX_TO_IRQ(MX51_PIN_DISPB2_SER_DIO),
 };
+#endif
+
+static struct siihdmi_platform_data mx51_efikamx_sii9022_data = {
+	.reset       = mx51_efikamx_display_reset,
+
+	.vendor      = "Genesi",
+	.description = "Efika MX",
+
+	.framebuffer = "DISP3 BG",
+
+	.hotplug_irq = IOMUX_TO_IRQ(MX51_PIN_DISPB2_SER_DIO),
+};
 
 static struct i2c_board_info mx51_efikamx_i2c_board_info[] __initdata = {
 	{

drivers/video/mxc/mxcfb_siihdmi.c

@@ -493,14 +493,16 @@ static int siihdmi_set_spd_info_frame(struct siihdmi_tx *tx)
 				.length  = sizeof(packet.info_frame) - sizeof(packet.info_frame.header),
 			},
 
-			/* TODO this should be in platform data */
-			.vendor      = "Genesi",
-			.description = "Efika MX",
-
 			.source_device_info = SPD_SOURCE_PC_GENERAL,
 		},
 	};
 
+	strncpy(packet.info_frame.vendor, tx->platform->vendor,
+		sizeof(packet.info_frame.vendor));
+
+	strncpy(packet.info_frame.description, tx->platform->description,
+		sizeof(packet.info_frame.description));
+
 	cea861_checksum_hdmi_info_frame((u8 *) &packet.info_frame);
 
 	BUILD_BUG_ON(sizeof(packet) != SIIHDMI_TPI_REG_MISC_INFO_FRAME_LENGTH);
@@ -933,9 +935,6 @@ static void siihdmi_hotplug_event(struct work_struct *work)
 static int __devinit siihdmi_probe(struct i2c_client *client,
 				   const struct i2c_device_id *id)
 {
-#ifdef CONFIG_SIIHDMI_HOTPLUG
-	struct mxc_lcd_platform_data *plat = client->dev.platform_data;
-#endif
 	struct siihdmi_tx *tx;
 	int i, ret;
 
@@ -944,18 +943,20 @@ static int __devinit siihdmi_probe(struct i2c_client *client,
 		return -ENOMEM;
 
 	tx->client = client;
-
-	i2c_set_clientdata(client, tx);
+	tx->platform = client->dev.platform_data;
 
 #ifdef CONFIG_SIIHDMI_HOTPLUG
-	tx->irq = plat->hotplug_irq;
+	tx->irq = tx->platform->hotplug_irq;
+
 	PREPARE_DELAYED_WORK(&tx->hotplug, siihdmi_hotplug_event);
-	ret = request_irq(tx->irq, siihdmi_irq_handler, IRQF_TRIGGER_RISING, "hdmi_hotplug", (void *) tx);
-	if (ret) {
+
+	if (request_irq(tx->irq, siihdmi_irq_handler,
+			IRQF_TRIGGER_RISING, "hdmi_hotplug", tx) < 0)
 		DEBUG("could not register display hotplug irq\n");
-	}
 #endif
 
+	i2c_set_clientdata(client, tx);
+
 #if defined(CONFIG_MACH_MX51_EFIKAMX)
 	msleep(MX51_IPU_SETTLE_TIME_MS);
 #endif
@@ -967,12 +968,14 @@ static int __devinit siihdmi_probe(struct i2c_client *client,
 	if (siihdmi_sink_present(tx)) {
 		/* enable any existing framebuffers */
 		DEBUG("%d registered framebuffers\n", num_registered_fb);
-		for (i = 0; i < num_registered_fb; i++)
-		{
-			/* hack: only init the background framebuffer */
-			if (!strncmp("DISP3 BG", registered_fb[i]->fix.id, 8))
-				if ((ret = siihdmi_init_fb(tx, registered_fb[i])) < 0)
-					goto error;
+
+		for (i = 0; i < num_registered_fb; i++) {
+			if (strcmp(registered_fb[i]->fix.id,
+				   tx->platform->framebuffer))
+				continue;
+
+			if ((ret = siihdmi_init_fb(tx, registered_fb[i])) < 0)
+				goto error;
 		}
 	} else {
 		/*

include/linux/i2c/sii_hdmi.h

@@ -311,8 +311,25 @@ struct siihdmi_audio_info_frame {
 	struct audio_info_frame         info_frame;
 };
 
+struct siihdmi_platform_data {
+	/* reset function */
+	void (*reset)(void);
+
+	/* HDMI SPD InfoFrame Data */
+	char *vendor;
+	char *description;
+
+	/* framebuffer fixed id */
+	char *framebuffer;
+
+	/* hotplug IRQ */
+	int hotplug_irq;
+};
+
 struct siihdmi_tx {
 	struct i2c_client *client;
+	struct siihdmi_platform_data *platform;
+
 	struct notifier_block nb;
 	struct delayed_work hotplug;