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Message-Id: <20200717161158.11516-1-zhengdejin5@gmail.com>
Date: Sat, 18 Jul 2020 00:11:58 +0800
From: Dejin Zheng <zhengdejin5@...il.com>
To: corbet@....net, gregkh@...uxfoundation.org, rafael@...nel.org,
f.fainelli@...il.com, heiko@...ech.de, linux-doc@...r.kernel.org,
linux-i2c@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, Dejin Zheng <zhengdejin5@...il.com>,
Michal Simek <michal.simek@...inx.com>,
Wolfram Sang <wsa@...-dreams.de>,
Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH v4 2/2] i2c: busses: convert to devm_platform_request_irq()
Use devm_platform_request_irq() to simplify code, and it contains
platform_get_irq() and devm_request_irq().
Cc: Michal Simek <michal.simek@...inx.com>
Cc: Wolfram Sang <wsa@...-dreams.de>
Signed-off-by: Dejin Zheng <zhengdejin5@...il.com>
Acked-by: Linus Walleij <linus.walleij@...aro.org>
Acked-by: Michal Simek <michal.simek@...inx.com>
---
v3 -> v4:
- add Michal's Acked-by tag in the second patch. and Thanks
for Michal's help.
v2 -> v3:
- add Linus's Acked-by tag and Thanks linus's review.
v1 -> v2:
- The patch content has not changed. just resend it by this discussion:
https://patchwork.ozlabs.org/project/linux-i2c/patch/20200520144821.8069-1-zhengdejin5@gmail.com/
drivers/i2c/busses/i2c-bcm-kona.c | 16 +++-------------
drivers/i2c/busses/i2c-cadence.c | 10 +++-------
drivers/i2c/busses/i2c-digicolor.c | 10 +++-------
drivers/i2c/busses/i2c-emev2.c | 5 ++---
drivers/i2c/busses/i2c-jz4780.c | 5 ++---
drivers/i2c/busses/i2c-meson.c | 13 ++++---------
drivers/i2c/busses/i2c-mxs.c | 9 +++------
drivers/i2c/busses/i2c-pnx.c | 9 ++-------
drivers/i2c/busses/i2c-rcar.c | 9 +++------
drivers/i2c/busses/i2c-rk3x.c | 14 +++-----------
drivers/i2c/busses/i2c-sirf.c | 10 ++--------
drivers/i2c/busses/i2c-stu300.c | 4 ++--
drivers/i2c/busses/i2c-synquacer.c | 12 +++---------
13 files changed, 35 insertions(+), 91 deletions(-)
diff --git a/drivers/i2c/busses/i2c-bcm-kona.c b/drivers/i2c/busses/i2c-bcm-kona.c
index ed5e1275ae46..f45acb47552a 100644
--- a/drivers/i2c/busses/i2c-bcm-kona.c
+++ b/drivers/i2c/busses/i2c-bcm-kona.c
@@ -818,20 +818,10 @@ static int bcm_kona_i2c_probe(struct platform_device *pdev)
ISR_NOACK_MASK,
dev->base + ISR_OFFSET);
- /* Get the interrupt number */
- dev->irq = platform_get_irq(pdev, 0);
- if (dev->irq < 0) {
- rc = dev->irq;
- goto probe_disable_clk;
- }
-
- /* register the ISR handler */
- rc = devm_request_irq(&pdev->dev, dev->irq, bcm_kona_i2c_isr,
- IRQF_SHARED, pdev->name, dev);
- if (rc) {
- dev_err(dev->device, "failed to request irq %i\n", dev->irq);
+ rc = devm_platform_request_irq(pdev, 0, &dev->irq, bcm_kona_i2c_isr,
+ IRQF_SHARED, pdev->name, dev);
+ if (rc)
goto probe_disable_clk;
- }
/* Enable the controller but leave it idle */
bcm_kona_i2c_send_cmd_to_ctrl(dev, BCM_CMD_NOACTION);
diff --git a/drivers/i2c/busses/i2c-cadence.c b/drivers/i2c/busses/i2c-cadence.c
index 4b72398af505..9ffae4d231dc 100644
--- a/drivers/i2c/busses/i2c-cadence.c
+++ b/drivers/i2c/busses/i2c-cadence.c
@@ -1204,8 +1204,6 @@ static int cdns_i2c_probe(struct platform_device *pdev)
if (IS_ERR(id->membase))
return PTR_ERR(id->membase);
- id->irq = platform_get_irq(pdev, 0);
-
id->adap.owner = THIS_MODULE;
id->adap.dev.of_node = pdev->dev.of_node;
id->adap.algo = &cdns_i2c_algo;
@@ -1256,12 +1254,10 @@ static int cdns_i2c_probe(struct platform_device *pdev)
goto err_clk_dis;
}
- ret = devm_request_irq(&pdev->dev, id->irq, cdns_i2c_isr, 0,
- DRIVER_NAME, id);
- if (ret) {
- dev_err(&pdev->dev, "cannot get irq %d\n", id->irq);
+ ret = devm_platform_request_irq(pdev, 0, &id->irq, cdns_i2c_isr, 0,
+ DRIVER_NAME, id);
+ if (ret)
goto err_clk_dis;
- }
/*
* Cadence I2C controller has a bug wherein it generates
diff --git a/drivers/i2c/busses/i2c-digicolor.c b/drivers/i2c/busses/i2c-digicolor.c
index 332f00437479..9ea965f41396 100644
--- a/drivers/i2c/busses/i2c-digicolor.c
+++ b/drivers/i2c/busses/i2c-digicolor.c
@@ -290,7 +290,7 @@ static int dc_i2c_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
struct dc_i2c *i2c;
- int ret = 0, irq;
+ int ret = 0;
i2c = devm_kzalloc(&pdev->dev, sizeof(struct dc_i2c), GFP_KERNEL);
if (!i2c)
@@ -314,12 +314,8 @@ static int dc_i2c_probe(struct platform_device *pdev)
if (IS_ERR(i2c->regs))
return PTR_ERR(i2c->regs);
- irq = platform_get_irq(pdev, 0);
- if (irq < 0)
- return irq;
-
- ret = devm_request_irq(&pdev->dev, irq, dc_i2c_irq, 0,
- dev_name(&pdev->dev), i2c);
+ ret = devm_platform_request_irq(pdev, 0, NULL, dc_i2c_irq, 0,
+ dev_name(&pdev->dev), i2c);
if (ret < 0)
return ret;
diff --git a/drivers/i2c/busses/i2c-emev2.c b/drivers/i2c/busses/i2c-emev2.c
index a08554c1a570..1a605d7b56dc 100644
--- a/drivers/i2c/busses/i2c-emev2.c
+++ b/drivers/i2c/busses/i2c-emev2.c
@@ -395,9 +395,8 @@ static int em_i2c_probe(struct platform_device *pdev)
em_i2c_reset(&priv->adap);
- priv->irq = platform_get_irq(pdev, 0);
- ret = devm_request_irq(&pdev->dev, priv->irq, em_i2c_irq_handler, 0,
- "em_i2c", priv);
+ ret = devm_platform_request_irq(pdev, 0, &priv->irq,
+ em_i2c_irq_handler, 0, "em_i2c", priv);
if (ret)
goto err_clk;
diff --git a/drivers/i2c/busses/i2c-jz4780.c b/drivers/i2c/busses/i2c-jz4780.c
index ba831df6661e..27de0309f211 100644
--- a/drivers/i2c/busses/i2c-jz4780.c
+++ b/drivers/i2c/busses/i2c-jz4780.c
@@ -825,9 +825,8 @@ static int jz4780_i2c_probe(struct platform_device *pdev)
jz4780_i2c_writew(i2c, JZ4780_I2C_INTM, 0x0);
- i2c->irq = platform_get_irq(pdev, 0);
- ret = devm_request_irq(&pdev->dev, i2c->irq, jz4780_i2c_irq, 0,
- dev_name(&pdev->dev), i2c);
+ ret = devm_platform_request_irq(pdev, 0, &i2c->irq, jz4780_i2c_irq, 0,
+ dev_name(&pdev->dev), i2c);
if (ret)
goto err;
diff --git a/drivers/i2c/busses/i2c-meson.c b/drivers/i2c/busses/i2c-meson.c
index c5dec572fc48..2e5a855ff20a 100644
--- a/drivers/i2c/busses/i2c-meson.c
+++ b/drivers/i2c/busses/i2c-meson.c
@@ -398,7 +398,7 @@ static int meson_i2c_probe(struct platform_device *pdev)
struct device_node *np = pdev->dev.of_node;
struct meson_i2c *i2c;
struct i2c_timings timings;
- int irq, ret = 0;
+ int ret = 0;
i2c = devm_kzalloc(&pdev->dev, sizeof(struct meson_i2c), GFP_KERNEL);
if (!i2c)
@@ -425,15 +425,10 @@ static int meson_i2c_probe(struct platform_device *pdev)
if (IS_ERR(i2c->regs))
return PTR_ERR(i2c->regs);
- irq = platform_get_irq(pdev, 0);
- if (irq < 0)
- return irq;
-
- ret = devm_request_irq(&pdev->dev, irq, meson_i2c_irq, 0, NULL, i2c);
- if (ret < 0) {
- dev_err(&pdev->dev, "can't request IRQ\n");
+ ret = devm_platform_request_irq(pdev, 0, NULL, meson_i2c_irq,
+ 0, NULL, i2c);
+ if (ret < 0)
return ret;
- }
ret = clk_prepare(i2c->clk);
if (ret < 0) {
diff --git a/drivers/i2c/busses/i2c-mxs.c b/drivers/i2c/busses/i2c-mxs.c
index 9587347447f0..cff82af3208a 100644
--- a/drivers/i2c/busses/i2c-mxs.c
+++ b/drivers/i2c/busses/i2c-mxs.c
@@ -802,7 +802,7 @@ static int mxs_i2c_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct mxs_i2c_dev *i2c;
struct i2c_adapter *adap;
- int err, irq;
+ int err;
i2c = devm_kzalloc(dev, sizeof(*i2c), GFP_KERNEL);
if (!i2c)
@@ -817,11 +817,8 @@ static int mxs_i2c_probe(struct platform_device *pdev)
if (IS_ERR(i2c->regs))
return PTR_ERR(i2c->regs);
- irq = platform_get_irq(pdev, 0);
- if (irq < 0)
- return irq;
-
- err = devm_request_irq(dev, irq, mxs_i2c_isr, 0, dev_name(dev), i2c);
+ err = devm_platform_request_irq(pdev, 0, NULL, mxs_i2c_isr, 0,
+ dev_name(dev), i2c);
if (err)
return err;
diff --git a/drivers/i2c/busses/i2c-pnx.c b/drivers/i2c/busses/i2c-pnx.c
index 8c4ec7f13f5a..950a01e9f778 100644
--- a/drivers/i2c/busses/i2c-pnx.c
+++ b/drivers/i2c/busses/i2c-pnx.c
@@ -718,13 +718,8 @@ static int i2c_pnx_probe(struct platform_device *pdev)
}
init_completion(&alg_data->mif.complete);
- alg_data->irq = platform_get_irq(pdev, 0);
- if (alg_data->irq < 0) {
- ret = alg_data->irq;
- goto out_clock;
- }
- ret = devm_request_irq(&pdev->dev, alg_data->irq, i2c_pnx_interrupt,
- 0, pdev->name, alg_data);
+ ret = devm_platform_request_irq(pdev, 0, &alg_data->irq,
+ i2c_pnx_interrupt, 0, pdev->name, alg_data);
if (ret)
goto out_clock;
diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c
index a45c4bf1ec01..bd59a13de707 100644
--- a/drivers/i2c/busses/i2c-rcar.c
+++ b/drivers/i2c/busses/i2c-rcar.c
@@ -984,13 +984,10 @@ static int rcar_i2c_probe(struct platform_device *pdev)
else
pm_runtime_put(dev);
-
- priv->irq = platform_get_irq(pdev, 0);
- ret = devm_request_irq(dev, priv->irq, rcar_i2c_irq, 0, dev_name(dev), priv);
- if (ret < 0) {
- dev_err(dev, "cannot get irq %d\n", priv->irq);
+ ret = devm_platform_request_irq(pdev, 0, &priv->irq, rcar_i2c_irq, 0,
+ dev_name(dev), priv);
+ if (ret < 0)
goto out_pm_disable;
- }
platform_set_drvdata(pdev, priv);
diff --git a/drivers/i2c/busses/i2c-rk3x.c b/drivers/i2c/busses/i2c-rk3x.c
index 8e3cc85d1921..1f0ac69c5774 100644
--- a/drivers/i2c/busses/i2c-rk3x.c
+++ b/drivers/i2c/busses/i2c-rk3x.c
@@ -1227,7 +1227,6 @@ static int rk3x_i2c_probe(struct platform_device *pdev)
int ret = 0;
int bus_nr;
u32 value;
- int irq;
unsigned long clk_rate;
i2c = devm_kzalloc(&pdev->dev, sizeof(struct rk3x_i2c), GFP_KERNEL);
@@ -1289,17 +1288,10 @@ static int rk3x_i2c_probe(struct platform_device *pdev)
}
}
- /* IRQ setup */
- irq = platform_get_irq(pdev, 0);
- if (irq < 0)
- return irq;
-
- ret = devm_request_irq(&pdev->dev, irq, rk3x_i2c_irq,
- 0, dev_name(&pdev->dev), i2c);
- if (ret < 0) {
- dev_err(&pdev->dev, "cannot request IRQ\n");
+ ret = devm_platform_request_irq(pdev, 0, NULL, rk3x_i2c_irq,
+ 0, dev_name(&pdev->dev), i2c);
+ if (ret < 0)
return ret;
- }
platform_set_drvdata(pdev, i2c);
diff --git a/drivers/i2c/busses/i2c-sirf.c b/drivers/i2c/busses/i2c-sirf.c
index 30db8fafe078..50fea7c77bd8 100644
--- a/drivers/i2c/busses/i2c-sirf.c
+++ b/drivers/i2c/busses/i2c-sirf.c
@@ -274,7 +274,6 @@ static int i2c_sirfsoc_probe(struct platform_device *pdev)
struct clk *clk;
int bitrate;
int ctrl_speed;
- int irq;
int err;
u32 regval;
@@ -314,13 +313,8 @@ static int i2c_sirfsoc_probe(struct platform_device *pdev)
goto out;
}
- irq = platform_get_irq(pdev, 0);
- if (irq < 0) {
- err = irq;
- goto out;
- }
- err = devm_request_irq(&pdev->dev, irq, i2c_sirfsoc_irq, 0,
- dev_name(&pdev->dev), siic);
+ err = devm_platform_request_irq(pdev, 0, NULL, i2c_sirfsoc_irq, 0,
+ dev_name(&pdev->dev), siic);
if (err)
goto out;
diff --git a/drivers/i2c/busses/i2c-stu300.c b/drivers/i2c/busses/i2c-stu300.c
index 64d739baf480..7893c532b8f2 100644
--- a/drivers/i2c/busses/i2c-stu300.c
+++ b/drivers/i2c/busses/i2c-stu300.c
@@ -881,8 +881,8 @@ static int stu300_probe(struct platform_device *pdev)
if (IS_ERR(dev->virtbase))
return PTR_ERR(dev->virtbase);
- dev->irq = platform_get_irq(pdev, 0);
- ret = devm_request_irq(&pdev->dev, dev->irq, stu300_irh, 0, NAME, dev);
+ ret = devm_platform_request_irq(pdev, 0, &dev->irq, stu300_irh,
+ 0, NAME, dev);
if (ret < 0)
return ret;
diff --git a/drivers/i2c/busses/i2c-synquacer.c b/drivers/i2c/busses/i2c-synquacer.c
index c9a3dba6a75d..d9143373e688 100644
--- a/drivers/i2c/busses/i2c-synquacer.c
+++ b/drivers/i2c/busses/i2c-synquacer.c
@@ -577,16 +577,10 @@ static int synquacer_i2c_probe(struct platform_device *pdev)
if (IS_ERR(i2c->base))
return PTR_ERR(i2c->base);
- i2c->irq = platform_get_irq(pdev, 0);
- if (i2c->irq < 0)
- return -ENODEV;
-
- ret = devm_request_irq(&pdev->dev, i2c->irq, synquacer_i2c_isr,
- 0, dev_name(&pdev->dev), i2c);
- if (ret < 0) {
- dev_err(&pdev->dev, "cannot claim IRQ %d\n", i2c->irq);
+ ret = devm_platform_request_irq(pdev, 0, &i2c->irq, synquacer_i2c_isr,
+ 0, dev_name(&pdev->dev), i2c);
+ if (ret < 0)
return ret;
- }
i2c->state = STATE_IDLE;
i2c->dev = &pdev->dev;
--
2.25.0
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