[PATCH 01/55] media: rkisp1: debug: Add dump file in debugfs for MI buffer registers

[Paul Elder]

Add a register dump file in debugfs for some of the buffer-related
registers in MI, for the base address, the size, and the offset. Also
dump the appropriate shadow registers.

Signed-off-by: Paul Elder <paul.elder at ideasonboard.com>
---
 .../platform/rockchip/rkisp1/rkisp1-debug.c   | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-debug.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-debug.c
index e76dc2b164b6..1a59c00fabdd 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-debug.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-debug.c
@@ -121,6 +121,24 @@ static int rkisp1_debug_dump_rsz_regs_show(struct seq_file *m, void *p)
 }
 DEFINE_SHOW_ATTRIBUTE(rkisp1_debug_dump_rsz_regs);
 
+static int rkisp1_debug_dump_mi_mp_y_offs_cnt_show(struct seq_file *m, void *p)
+{
+	static const struct rkisp1_debug_register registers[] = {
+		RKISP1_DEBUG_REG(MI_MP_Y_BASE_AD_INIT),
+		RKISP1_DEBUG_REG(MI_MP_Y_BASE_AD_INIT2),
+		RKISP1_DEBUG_REG(MI_MP_Y_BASE_AD_SHD),
+		RKISP1_DEBUG_REG(MI_MP_Y_SIZE_INIT),
+		RKISP1_DEBUG_REG(MI_MP_Y_SIZE_INIT),
+		RKISP1_DEBUG_REG(MI_MP_Y_SIZE_SHD),
+		RKISP1_DEBUG_REG(MI_MP_Y_OFFS_CNT_SHD),
+		{ /* Sentinel */ },
+	};
+	struct rkisp1_device *rkisp1 = m->private;
+
+	return rkisp1_debug_dump_regs(rkisp1, m, 0, registers);
+}
+DEFINE_SHOW_ATTRIBUTE(rkisp1_debug_dump_mi_mp_y_offs_cnt);
+
 #define RKISP1_DEBUG_DATA_COUNT_BINS	32
 #define RKISP1_DEBUG_DATA_COUNT_STEP	(4096 / RKISP1_DEBUG_DATA_COUNT_BINS)
 
@@ -214,6 +232,9 @@ void rkisp1_debug_init(struct rkisp1_device *rkisp1)
 	debugfs_create_file("srsz", 0444, regs_dir,
 			    &rkisp1->resizer_devs[RKISP1_SELFPATH],
 			    &rkisp1_debug_dump_rsz_regs_fops);
+
+	debugfs_create_file("mi_mp_y_bufs", 0444, regs_dir, rkisp1,
+			    &rkisp1_debug_dump_mi_mp_y_offs_cnt_fops);
 }
 
 void rkisp1_debug_cleanup(struct rkisp1_device *rkisp1)
-- 
2.30.2