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Message-Id: <1452265496-22475-6-git-send-email-peda@lysator.liu.se>
Date: Fri, 8 Jan 2016 16:04:53 +0100
From: Peter Rosin <peda@...ator.liu.se>
To: Wolfram Sang <wsa@...-dreams.de>
Cc: Peter Rosin <peda@...ntia.se>,
Peter Korsgaard <peter.korsgaard@...co.com>,
Guenter Roeck <linux@...ck-us.net>,
Jonathan Cameron <jic23@...nel.org>,
Hartmut Knaack <knaack.h@....de>,
Lars-Peter Clausen <lars@...afoo.de>,
Peter Meerwald <pmeerw@...erw.net>,
Antti Palosaari <crope@....fi>,
Mauro Carvalho Chehab <mchehab@....samsung.com>,
Rob Herring <robh+dt@...nel.org>,
Frank Rowand <frowand.list@...il.com>,
Grant Likely <grant.likely@...aro.org>,
Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
Adriana Reus <adriana.reus@...el.com>,
Krzysztof Kozlowski <k.kozlowski@...sung.com>,
Hans Verkuil <hans.verkuil@...co.com>,
Nicholas Mc Guire <hofrat@...dl.org>,
Olli Salonen <olli.salonen@....fi>,
Peter Rosin <peda@...ator.liu.se>, linux-i2c@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-iio@...r.kernel.org,
linux-media@...r.kernel.org, devicetree@...r.kernel.org
Subject: [PATCH v3 5/8] i2c-mux: pinctrl: get rid of the driver private struct device pointer
From: Peter Rosin <peda@...ntia.se>
There is a copy of the device pointer in the mux core.
Signed-off-by: Peter Rosin <peda@...ntia.se>
---
drivers/i2c/muxes/i2c-mux-pinctrl.c | 23 ++++++++---------------
1 file changed, 8 insertions(+), 15 deletions(-)
diff --git a/drivers/i2c/muxes/i2c-mux-pinctrl.c b/drivers/i2c/muxes/i2c-mux-pinctrl.c
index 0dc912898813..38129850cbe4 100644
--- a/drivers/i2c/muxes/i2c-mux-pinctrl.c
+++ b/drivers/i2c/muxes/i2c-mux-pinctrl.c
@@ -26,7 +26,6 @@
#include <linux/of.h>
struct i2c_mux_pinctrl {
- struct device *dev;
struct i2c_mux_pinctrl_platform_data *pdata;
struct pinctrl *pinctrl;
struct pinctrl_state **states;
@@ -51,6 +50,7 @@ static int i2c_mux_pinctrl_deselect(struct i2c_mux_core *muxc, u32 chan)
static int i2c_mux_pinctrl_parse_dt(struct i2c_mux_pinctrl *mux,
struct platform_device *pdev)
{
+ struct i2c_mux_core *muxc = platform_get_drvdata(pdev);
struct device_node *np = pdev->dev.of_node;
int num_names, i, ret;
struct device_node *adapter_np;
@@ -60,15 +60,12 @@ static int i2c_mux_pinctrl_parse_dt(struct i2c_mux_pinctrl *mux,
return 0;
mux->pdata = devm_kzalloc(&pdev->dev, sizeof(*mux->pdata), GFP_KERNEL);
- if (!mux->pdata) {
- dev_err(mux->dev,
- "Cannot allocate i2c_mux_pinctrl_platform_data\n");
+ if (!mux->pdata)
return -ENOMEM;
- }
num_names = of_property_count_strings(np, "pinctrl-names");
if (num_names < 0) {
- dev_err(mux->dev, "Cannot parse pinctrl-names: %d\n",
+ dev_err(muxc->dev, "Cannot parse pinctrl-names: %d\n",
num_names);
return num_names;
}
@@ -76,23 +73,21 @@ static int i2c_mux_pinctrl_parse_dt(struct i2c_mux_pinctrl *mux,
mux->pdata->pinctrl_states = devm_kzalloc(&pdev->dev,
sizeof(*mux->pdata->pinctrl_states) * num_names,
GFP_KERNEL);
- if (!mux->pdata->pinctrl_states) {
- dev_err(mux->dev, "Cannot allocate pinctrl_states\n");
+ if (!mux->pdata->pinctrl_states)
return -ENOMEM;
- }
for (i = 0; i < num_names; i++) {
ret = of_property_read_string_index(np, "pinctrl-names", i,
&mux->pdata->pinctrl_states[mux->pdata->bus_count]);
if (ret < 0) {
- dev_err(mux->dev, "Cannot parse pinctrl-names: %d\n",
+ dev_err(muxc->dev, "Cannot parse pinctrl-names: %d\n",
ret);
return ret;
}
if (!strcmp(mux->pdata->pinctrl_states[mux->pdata->bus_count],
"idle")) {
if (i != num_names - 1) {
- dev_err(mux->dev, "idle state must be last\n");
+ dev_err(muxc->dev, "idle state must be last\n");
return -EINVAL;
}
mux->pdata->pinctrl_state_idle = "idle";
@@ -103,13 +98,13 @@ static int i2c_mux_pinctrl_parse_dt(struct i2c_mux_pinctrl *mux,
adapter_np = of_parse_phandle(np, "i2c-parent", 0);
if (!adapter_np) {
- dev_err(mux->dev, "Cannot parse i2c-parent\n");
+ dev_err(muxc->dev, "Cannot parse i2c-parent\n");
return -ENODEV;
}
adapter = of_find_i2c_adapter_by_node(adapter_np);
of_node_put(adapter_np);
if (!adapter) {
- dev_err(mux->dev, "Cannot find parent bus\n");
+ dev_err(muxc->dev, "Cannot find parent bus\n");
return -EPROBE_DEFER;
}
mux->pdata->parent_bus_num = i2c_adapter_id(adapter);
@@ -139,8 +134,6 @@ static int i2c_mux_pinctrl_probe(struct platform_device *pdev)
mux = i2c_mux_priv(muxc);
platform_set_drvdata(pdev, muxc);
- mux->dev = &pdev->dev;
-
mux->pdata = dev_get_platdata(&pdev->dev);
if (!mux->pdata) {
ret = i2c_mux_pinctrl_parse_dt(mux, pdev);
--
2.1.4
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