From b3f62c372cea677ad5170f6ca253ee1cde5383f8 Mon Sep 17 00:00:00 2001
From: Nathan Chancellor <natechancellor@gmail.com>
Date: Thu, 10 Sep 2020 10:04:02 -0700
Subject: drm/vc4: Update type of reg parameter in vc4_hdmi_{read,write}
Git-commit: 910e1ca6f36f48b7911e72dc8b6667d652031d97
Patch-mainline: v5.10-rc1
References: jsc#SLE-15318
Clang warns 100+ times in the vc4 driver along the lines of:
drivers/gpu/drm/vc4/vc4_hdmi_phy.c:518:13: warning: implicit conversion
from enumeration type 'enum vc4_hdmi_field' to different enumeration
type 'enum vc4_hdmi_regs' [-Wenum-conversion]
HDMI_WRITE(HDMI_TX_PHY_POWERDOWN_CTL,
~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
The HDMI_READ and HDMI_WRITE macros pass in enumerators of type
vc4_hdmi_field but vc4_hdmi_write and vc4_hdmi_read expect a enumerator
of type vc4_hdmi_regs, causing a warning for every instance of this.
Update the parameter type so there is no more mismatch.
Fixes: 311e305fdb4e ("drm/vc4: hdmi: Implement a register layout abstraction")
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Link: https://github.com/ClangBuiltLinux/linux/issues/1149
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20200910170401.3857250-1-natechancellor@gmail.com
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/vc4/vc4_hdmi_regs.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi_regs.h b/drivers/gpu/drm/vc4/vc4_hdmi_regs.h
index 47364bd3960d..7c6b4818f245 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi_regs.h
+++ b/drivers/gpu/drm/vc4/vc4_hdmi_regs.h
@@ -392,7 +392,7 @@ void __iomem *__vc4_hdmi_get_field_base(struct vc4_hdmi *hdmi,
}
static inline u32 vc4_hdmi_read(struct vc4_hdmi *hdmi,
- enum vc4_hdmi_regs reg)
+ enum vc4_hdmi_field reg)
{
const struct vc4_hdmi_register *field;
const struct vc4_hdmi_variant *variant = hdmi->variant;
@@ -417,7 +417,7 @@ static inline u32 vc4_hdmi_read(struct vc4_hdmi *hdmi,
#define HDMI_READ(reg) vc4_hdmi_read(vc4_hdmi, reg)
static inline void vc4_hdmi_write(struct vc4_hdmi *hdmi,
- enum vc4_hdmi_regs reg,
+ enum vc4_hdmi_field reg,
u32 value)
{
const struct vc4_hdmi_register *field;
--
2.29.2