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Date: Fri, 11 Mar 2022 15:34:50 +0100
From: Paul Kocialkowski <paul.kocialkowski@...tlin.com>
To: linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-sunxi@...ts.linux.dev
Cc: Yong Deng <yong.deng@...ewell.com>,
Paul Kocialkowski <paul.kocialkowski@...tlin.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Chen-Yu Tsai <wens@...e.org>,
Jernej Skrabec <jernej.skrabec@...il.com>,
Samuel Holland <samuel@...lland.org>,
Laurent Pinchart <laurent.pinchart@...asonboard.com>,
Maxime Ripard <mripard@...nel.org>,
Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
Maxime Ripard <maxime@...no.tech>
Subject: [PATCH v3 04/46] media: sun6i-csi: Tidy up platform code
Various renames, variables lowering and other cosmetic changes in the
platform-support code. No functional change intended.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@...tlin.com>
Reviewed-by: Maxime Ripard <maxime@...no.tech>
---
.../platform/sunxi/sun6i-csi/sun6i_csi.c | 76 +++++++++++--------
1 file changed, 43 insertions(+), 33 deletions(-)
diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c
index dc79f3c14336..8155e9560164 100644
--- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c
+++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c
@@ -776,12 +776,11 @@ static int sun6i_csi_v4l2_init(struct sun6i_csi_device *csi_dev)
return ret;
}
-/* -----------------------------------------------------------------------------
- * Resources and IRQ
- */
-static irqreturn_t sun6i_csi_isr(int irq, void *dev_id)
+/* Platform */
+
+static irqreturn_t sun6i_csi_isr(int irq, void *private)
{
- struct sun6i_csi_device *csi_dev = (struct sun6i_csi_device *)dev_id;
+ struct sun6i_csi_device *csi_dev = private;
struct regmap *regmap = csi_dev->regmap;
u32 status;
@@ -816,79 +815,88 @@ static const struct regmap_config sun6i_csi_regmap_config = {
.max_register = 0x9c,
};
-static int sun6i_csi_resource_request(struct sun6i_csi_device *csi_dev,
- struct platform_device *pdev)
+static int sun6i_csi_resources_setup(struct sun6i_csi_device *csi_dev,
+ struct platform_device *platform_dev)
{
+ struct device *dev = csi_dev->dev;
void __iomem *io_base;
int ret;
int irq;
- io_base = devm_platform_ioremap_resource(pdev, 0);
+ /* Registers */
+
+ io_base = devm_platform_ioremap_resource(platform_dev, 0);
if (IS_ERR(io_base))
return PTR_ERR(io_base);
- csi_dev->regmap = devm_regmap_init_mmio(&pdev->dev, io_base,
+ csi_dev->regmap = devm_regmap_init_mmio(dev, io_base,
&sun6i_csi_regmap_config);
if (IS_ERR(csi_dev->regmap)) {
- dev_err(&pdev->dev, "Failed to init register map\n");
+ dev_err(dev, "failed to init register map\n");
return PTR_ERR(csi_dev->regmap);
}
- csi_dev->clk_bus = devm_clk_get(&pdev->dev, "bus");
+ /* Clocks */
+
+ csi_dev->clk_bus = devm_clk_get(dev, "bus");
if (IS_ERR(csi_dev->clk_bus)) {
- dev_err(&pdev->dev, "Unable to acquire bus clock\n");
+ dev_err(dev, "failed to acquire bus clock\n");
return PTR_ERR(csi_dev->clk_bus);
}
- csi_dev->clk_mod = devm_clk_get(&pdev->dev, "mod");
+ csi_dev->clk_mod = devm_clk_get(dev, "mod");
if (IS_ERR(csi_dev->clk_mod)) {
- dev_err(&pdev->dev, "Unable to acquire csi clock\n");
+ dev_err(dev, "failed to acquire module clock\n");
return PTR_ERR(csi_dev->clk_mod);
}
- csi_dev->clk_ram = devm_clk_get(&pdev->dev, "ram");
+ csi_dev->clk_ram = devm_clk_get(dev, "ram");
if (IS_ERR(csi_dev->clk_ram)) {
- dev_err(&pdev->dev, "Unable to acquire dram-csi clock\n");
+ dev_err(dev, "failed to acquire ram clock\n");
return PTR_ERR(csi_dev->clk_ram);
}
- csi_dev->reset = devm_reset_control_get_shared(&pdev->dev, NULL);
+ /* Reset */
+
+ csi_dev->reset = devm_reset_control_get_shared(dev, NULL);
if (IS_ERR(csi_dev->reset)) {
- dev_err(&pdev->dev, "Cannot get reset controller\n");
+ dev_err(dev, "failed to acquire reset\n");
return PTR_ERR(csi_dev->reset);
}
- irq = platform_get_irq(pdev, 0);
+ /* Interrupt */
+
+ irq = platform_get_irq(platform_dev, 0);
if (irq < 0)
return -ENXIO;
- ret = devm_request_irq(&pdev->dev, irq, sun6i_csi_isr, 0,
- SUN6I_CSI_NAME, csi_dev);
+ ret = devm_request_irq(dev, irq, sun6i_csi_isr, 0, SUN6I_CSI_NAME,
+ csi_dev);
if (ret) {
- dev_err(&pdev->dev, "Cannot request csi IRQ\n");
+ dev_err(dev, "failed to request interrupt\n");
return ret;
}
return 0;
}
-static int sun6i_csi_probe(struct platform_device *pdev)
+static int sun6i_csi_probe(struct platform_device *platform_dev)
{
struct sun6i_csi_device *csi_dev;
+ struct device *dev = &platform_dev->dev;
int ret;
- csi_dev = devm_kzalloc(&pdev->dev, sizeof(*csi_dev), GFP_KERNEL);
+ csi_dev = devm_kzalloc(dev, sizeof(*csi_dev), GFP_KERNEL);
if (!csi_dev)
return -ENOMEM;
- csi_dev->dev = &pdev->dev;
+ csi_dev->dev = &platform_dev->dev;
+ platform_set_drvdata(platform_dev, csi_dev);
- ret = sun6i_csi_resource_request(csi_dev, pdev);
+ ret = sun6i_csi_resources_setup(csi_dev, platform_dev);
if (ret)
return ret;
- platform_set_drvdata(pdev, csi_dev);
-
return sun6i_csi_v4l2_init(csi_dev);
}
@@ -909,16 +917,18 @@ static const struct of_device_id sun6i_csi_of_match[] = {
{ .compatible = "allwinner,sun50i-a64-csi", },
{},
};
+
MODULE_DEVICE_TABLE(of, sun6i_csi_of_match);
static struct platform_driver sun6i_csi_platform_driver = {
- .probe = sun6i_csi_probe,
- .remove = sun6i_csi_remove,
- .driver = {
- .name = SUN6I_CSI_NAME,
- .of_match_table = of_match_ptr(sun6i_csi_of_match),
+ .probe = sun6i_csi_probe,
+ .remove = sun6i_csi_remove,
+ .driver = {
+ .name = SUN6I_CSI_NAME,
+ .of_match_table = of_match_ptr(sun6i_csi_of_match),
},
};
+
module_platform_driver(sun6i_csi_platform_driver);
MODULE_DESCRIPTION("Allwinner A31 Camera Sensor Interface driver");
--
2.35.1
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