linux-kernel - [PATCH 5.16 0296/1039] drm/bridge: ti-sn65dsi86: Set max register for regmap

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Date:   Mon, 24 Jan 2022 19:34:45 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Rob Clark <robdclark@...omium.org>,
        Douglas Anderson <dianders@...omium.org>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Stephen Boyd <swboyd@...omium.org>,
        Robert Foss <robert.foss@...aro.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.16 0296/1039] drm/bridge: ti-sn65dsi86: Set max register for regmap

From: Stephen Boyd <swboyd@...omium.org>

[ Upstream commit 0b665d4af35837f0a0ae63135b84a3c187c1db3b ]

Set the maximum register to 0xff so we can dump the registers for this
device in debugfs.

Fixes: a095f15c00e2 ("drm/bridge: add support for sn65dsi86 bridge driver")
Cc: Rob Clark <robdclark@...omium.org>
Cc: Douglas Anderson <dianders@...omium.org>
Cc: Laurent Pinchart <laurent.pinchart@...asonboard.com>
Signed-off-by: Stephen Boyd <swboyd@...omium.org>
Reviewed-by: Robert Foss <robert.foss@...aro.org>
Signed-off-by: Robert Foss <robert.foss@...aro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20211215002529.382383-1-swboyd@chromium.org
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/bridge/ti-sn65dsi86.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
index 6154bed0af5bf..83d06c16d4d74 100644
--- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c
+++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
@@ -188,6 +188,7 @@ static const struct regmap_config ti_sn65dsi86_regmap_config = {
 	.val_bits = 8,
 	.volatile_table = &ti_sn_bridge_volatile_table,
 	.cache_type = REGCACHE_NONE,
+	.max_register = 0xFF,
 };
 
 static void ti_sn65dsi86_write_u16(struct ti_sn65dsi86 *pdata,
-- 
2.34.1