drm/msm/sde: enable sde clocks during debugfs register read
SDE clocks need to be enabled when attempting to read h/w
registers through the debugfs interface. The clocks themselves
are reference counted, so it's safe to enable/disable them
around the debugfs access.
Change-Id: I937b29e327799f78b821d4beb4f93504bea28fdc
Signed-off-by: Clarence Ip <cip@codeaurora.org>
diff --git a/drivers/gpu/drm/msm/sde/sde_kms.h b/drivers/gpu/drm/msm/sde/sde_kms.h
index 0928b95..c485bea 100644
--- a/drivers/gpu/drm/msm/sde/sde_kms.h
+++ b/drivers/gpu/drm/msm/sde/sde_kms.h
@@ -1,4 +1,4 @@
-/* Copyright (c) 2015-2016, The Linux Foundation. All rights reserved.
+/* Copyright (c) 2015-2017, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@@ -216,7 +216,7 @@
struct sde_debugfs_regset32 {
uint32_t offset;
uint32_t blk_len;
- void __iomem *base;
+ struct sde_kms *sde_kms;
};
/**
@@ -226,10 +226,10 @@
* @regset: opaque register definition structure
* @offset: sub-block offset
* @length: sub-block length, in bytes
- * @base: base IOMEM address
+ * @sde_kms: pointer to sde kms structure
*/
void sde_debugfs_setup_regset32(struct sde_debugfs_regset32 *regset,
- uint32_t offset, uint32_t length, void __iomem *base);
+ uint32_t offset, uint32_t length, struct sde_kms *sde_kms);
/**
* sde_debugfs_create_regset32 - Create register read back file for debugfs