gpio: change member .dev to .parent

The name .dev in a struct is normally reserved for a struct device
that is let us say a superclass to the thing described by the struct.
struct gpio_chip stands out by confusingly using a struct device *dev
to point to the parent device (such as a platform_device) that
represents the hardware. As we want to give gpio_chip:s real devices,
this is not working. We need to rename this member to parent.

This was done by two coccinelle scripts, I guess it is possible to
combine them into one, but I don't know such stuff. They look like
this:

@@
struct gpio_chip *var;
@@
-var->dev
+var->parent

and:

@@
struct gpio_chip var;
@@
-var.dev
+var.parent

and:

@@
struct bgpio_chip *var;
@@
-var->gc.dev
+var->gc.parent

Plus a few instances of bgpio that I couldn't figure out how
to teach Coccinelle to rewrite.

This patch hits all over the place, but I *strongly* prefer this
solution to any piecemal approaches that just exercise patch
mechanics all over the place. It mainly hits drivers/gpio and
drivers/pinctrl which is my own backyard anyway.

Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: Rafał Miłecki <zajec5@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Alek Du <alek.du@intel.com>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Acked-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

5 files changed, 5 insertions, 5 deletions

diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c
index 146264a41ec8..af2a13040898 100644
--- a/drivers/pinctrl/qcom/pinctrl-msm.c
+++ b/drivers/pinctrl/qcom/pinctrl-msm.c
@@ -800,7 +800,7 @@ static int msm_gpio_init(struct msm_pinctrl *pctrl)
 	chip->base = 0;
 	chip->ngpio = ngpio;
 	chip->label = dev_name(pctrl->dev);
-	chip->dev = pctrl->dev;
+	chip->parent = pctrl->dev;
 	chip->owner = THIS_MODULE;
 	chip->of_node = pctrl->dev->of_node;
 
diff --git a/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c b/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c
index 6c42ca14d2fd..3e5ccc76d59c 100644
--- a/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c
+++ b/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c
@@ -760,7 +760,7 @@ static int pmic_gpio_probe(struct platform_device *pdev)
 	}
 
 	state->chip = pmic_gpio_gpio_template;
-	state->chip.dev = dev;
+	state->chip.parent = dev;
 	state->chip.base = -1;
 	state->chip.ngpio = npins;
 	state->chip.label = dev_name(dev);
diff --git a/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c b/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c
index 9ce0e30e33e8..69c14ba177d0 100644
--- a/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c
+++ b/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c
@@ -862,7 +862,7 @@ static int pmic_mpp_probe(struct platform_device *pdev)
 	}
 
 	state->chip = pmic_mpp_gpio_template;
-	state->chip.dev = dev;
+	state->chip.parent = dev;
 	state->chip.base = -1;
 	state->chip.ngpio = npins;
 	state->chip.label = dev_name(dev);
diff --git a/drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c b/drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c
index d809c9eaa323..7b80fa9c2049 100644
--- a/drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c
+++ b/drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c
@@ -730,7 +730,7 @@ static int pm8xxx_gpio_probe(struct platform_device *pdev)
 
 	pctrl->chip = pm8xxx_gpio_template;
 	pctrl->chip.base = -1;
-	pctrl->chip.dev = &pdev->dev;
+	pctrl->chip.parent = &pdev->dev;
 	pctrl->chip.of_node = pdev->dev.of_node;
 	pctrl->chip.of_gpio_n_cells = 2;
 	pctrl->chip.label = dev_name(pctrl->dev);
diff --git a/drivers/pinctrl/qcom/pinctrl-ssbi-mpp.c b/drivers/pinctrl/qcom/pinctrl-ssbi-mpp.c
index 8982027de8e8..7bc1e0f27447 100644
--- a/drivers/pinctrl/qcom/pinctrl-ssbi-mpp.c
+++ b/drivers/pinctrl/qcom/pinctrl-ssbi-mpp.c
@@ -821,7 +821,7 @@ static int pm8xxx_mpp_probe(struct platform_device *pdev)
 
 	pctrl->chip = pm8xxx_mpp_template;
 	pctrl->chip.base = -1;
-	pctrl->chip.dev = &pdev->dev;
+	pctrl->chip.parent = &pdev->dev;
 	pctrl->chip.of_node = pdev->dev.of_node;
 	pctrl->chip.of_gpio_n_cells = 2;
 	pctrl->chip.label = dev_name(pctrl->dev);