1 files changed, 40 insertions, 1 deletions

diff --git a/drivers/video/omap2/dsscomp/device.c b/drivers/video/omap2/dsscomp/device.c
index 53a81bb..b68abfd 100644
--- a/drivers/video/omap2/dsscomp/device.c
+++ b/drivers/video/omap2/dsscomp/device.c
@@ -39,14 +39,19 @@
 
 #include <video/omapdss.h>
 #include <video/dsscomp.h>
+#include <plat/android-display.h>
 #include <plat/dsscomp.h>
 #include "dsscomp.h"
+#include "../dss/dss_features.h"
+#include "../dss/dss.h"
 
 #include <linux/debugfs.h>
 
 static DECLARE_WAIT_QUEUE_HEAD(waitq);
 static DEFINE_MUTEX(wait_mtx);
 
+static struct dsscomp_platform_info platform_info;
+
 static u32 hwc_virt_to_phys(u32 arg)
 {
 	pmd_t *pmd;
@@ -353,7 +358,7 @@ static long query_display(struct dsscomp_dev *cdev,
 static long check_ovl(struct dsscomp_dev *cdev,
 					struct dsscomp_check_ovl_data *chk)
 {
-	/* for now return all overlays as possible */
+	/* for now return all overlays as possstruct dsscomp_dev *cdevible */
 	return (1 << cdev->num_ovls) - 1;
 }
 
@@ -413,6 +418,32 @@ static void fill_cache(struct dsscomp_dev *cdev)
 				cdev->wb_ovl ? 1 : 0);
 }
 
+static void fill_platform_info(struct dsscomp_dev *cdev)
+{
+	struct dsscomp_platform_info *p = &platform_info;
+
+	p->max_xdecim_1d = 16;
+	p->max_xdecim_2d = 16;
+	p->max_ydecim_1d = 16;
+	p->max_ydecim_2d = 2;
+
+	p->fclk = dss_feat_get_param_max(FEAT_PARAM_DSS_FCK);
+	/*
+	 * :TODO: for now overwrite with actual fclock as dss will not scale
+	 * fclock based on composition
+	 */
+	p->fclk = dispc_fclk_rate();
+
+	p->min_width = 2;
+	p->max_width = 2048;
+	p->max_height = 2048;
+
+	p->max_downscale = 4;
+	p->integer_scale_ratio_limit = 2048;
+
+	p->tiler1d_slot_size = tiler1d_slot_size(cdev);
+}
+
 static long comp_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 {
 	int r = 0;
@@ -487,6 +518,13 @@ static long comp_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 	{
 		r = copy_from_user(&u.sdis, ptr, sizeof(u.sdis)) ? :
 		    setup_display(cdev, &u.sdis);
+		break;
+	}
+	case DSSCIOC_QUERY_PLATFORM:
+	{
+		/* :TODO: for now refill platform info as it is dynamic */
+		r = copy_to_user(ptr, &platform_info, sizeof(platform_info));
+		break;
 	}
 	default:
 		r = -EINVAL;
@@ -564,6 +602,7 @@ static int dsscomp_probe(struct platform_device *pdev)
 	pr_info("dsscomp: initializing.\n");
 
 	fill_cache(cdev);
+	fill_platform_info(cdev);
 
 	/* initialize queues */
 	dsscomp_queue_init(cdev);