Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   Paul Kocialkowski <paul.kocialkowski@bootlin.com>
To:     linux-media@vger.kernel.org, devicetree@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev,
        linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org,
        linux-clk@vger.kernel.org, linux-staging@lists.linux.dev
Cc:     Yong Deng <yong.deng@magewell.com>,
        Mauro Carvalho Chehab <mchehab@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Maxime Ripard <mripard@kernel.org>,
        Sakari Ailus <sakari.ailus@linux.intel.com>,
        Hans Verkuil <hans.verkuil@cisco.com>,
        Chen-Yu Tsai <wens@csie.org>,
        Jernej Skrabec <jernej.skrabec@gmail.com>,
        Paul Kocialkowski <paul.kocialkowski@bootlin.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Helen Koike <helen.koike@collabora.com>,
        Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
        Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Subject: [PATCH v2 19/66] media: sun6i-csi: Grab bus clock instead of passing it to regmap
Date:   Sat,  5 Feb 2022 19:53:42 +0100
Message-Id: <20220205185429.2278860-20-paul.kocialkowski@bootlin.com>
In-Reply-To: <20220205185429.2278860-1-paul.kocialkowski@bootlin.com>
References: <20220205185429.2278860-1-paul.kocialkowski@bootlin.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

Since the bus clock alone is not enough to get access to the registers,
don't pass it to regmap and manage it instead just like the other
clocks.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
---
 drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c | 10 ++++++++--
 drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.h |  1 +
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c
index 5fbaa1e99412..dc79f3c14336 100644
--- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c
+++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c
@@ -827,13 +827,19 @@ static int sun6i_csi_resource_request(struct sun6i_csi_device *csi_dev,
 	if (IS_ERR(io_base))
 		return PTR_ERR(io_base);
 
-	csi_dev->regmap = devm_regmap_init_mmio_clk(&pdev->dev, "bus", io_base,
-						    &sun6i_csi_regmap_config);
+	csi_dev->regmap = devm_regmap_init_mmio(&pdev->dev, io_base,
+						&sun6i_csi_regmap_config);
 	if (IS_ERR(csi_dev->regmap)) {
 		dev_err(&pdev->dev, "Failed to init register map\n");
 		return PTR_ERR(csi_dev->regmap);
 	}
 
+	csi_dev->clk_bus = devm_clk_get(&pdev->dev, "bus");
+	if (IS_ERR(csi_dev->clk_bus)) {
+		dev_err(&pdev->dev, "Unable to acquire bus clock\n");
+		return PTR_ERR(csi_dev->clk_bus);
+	}
+
 	csi_dev->clk_mod = devm_clk_get(&pdev->dev, "mod");
 	if (IS_ERR(csi_dev->clk_mod)) {
 		dev_err(&pdev->dev, "Unable to acquire csi clock\n");
diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.h b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.h
index e4e7ac6c869f..356661b413f8 100644
--- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.h
+++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.h
@@ -51,6 +51,7 @@ struct sun6i_csi_device {
 	struct sun6i_video		video;
 
 	struct regmap			*regmap;
+	struct clk			*clk_bus;
 	struct clk			*clk_mod;
 	struct clk			*clk_ram;
 	struct reset_control		*reset;
-- 
2.34.1