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Message-Id: <20180726154025.13173-1-stefan@agner.ch>
Date: Thu, 26 Jul 2018 17:40:24 +0200
From: Stefan Agner <stefan@...er.ch>
To: thierry.reding@...il.com, jonathanh@...dia.com,
linus.walleij@...aro.org
Cc: pdeschrijver@...dia.co, digetx@...il.com, keescook@...omium.org,
marcel.ziswiler@...adex.com, linux-tegra@...r.kernel.org,
linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
Stefan Agner <stefan@...er.ch>
Subject: [PATCH 1/2] pinctrl: tegra: define GPIO compatible node per SoC
Tegra 2 uses a different GPIO controller which uses "tegra20-gpio" as
compatible string.
Make the compatible string the GPIO node is using a SoC specific
property. This prevents the kernel from registering the GPIO range
twice in case the GPIO range is specified in the device tree.
Fixes: 9462510ce31e ("pinctrl: tegra: Only set the gpio range if needed")
Signed-off-by: Stefan Agner <stefan@...er.ch>
---
drivers/pinctrl/tegra/pinctrl-tegra.c | 6 +++---
drivers/pinctrl/tegra/pinctrl-tegra.h | 1 +
drivers/pinctrl/tegra/pinctrl-tegra114.c | 1 +
drivers/pinctrl/tegra/pinctrl-tegra124.c | 1 +
drivers/pinctrl/tegra/pinctrl-tegra20.c | 1 +
drivers/pinctrl/tegra/pinctrl-tegra210.c | 1 +
drivers/pinctrl/tegra/pinctrl-tegra30.c | 1 +
7 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/drivers/pinctrl/tegra/pinctrl-tegra.c b/drivers/pinctrl/tegra/pinctrl-tegra.c
index f974eee29a19..1aba75897d14 100644
--- a/drivers/pinctrl/tegra/pinctrl-tegra.c
+++ b/drivers/pinctrl/tegra/pinctrl-tegra.c
@@ -629,12 +629,12 @@ static void tegra_pinctrl_clear_parked_bits(struct tegra_pmx *pmx)
}
}
-static bool gpio_node_has_range(void)
+static bool gpio_node_has_range(const char *compatible)
{
struct device_node *np;
bool has_prop = false;
- np = of_find_compatible_node(NULL, NULL, "nvidia,tegra30-gpio");
+ np = of_find_compatible_node(NULL, NULL, compatible);
if (!np)
return has_prop;
@@ -728,7 +728,7 @@ int tegra_pinctrl_probe(struct platform_device *pdev,
tegra_pinctrl_clear_parked_bits(pmx);
- if (!gpio_node_has_range())
+ if (!gpio_node_has_range(pmx->soc->gpio_compatible))
pinctrl_add_gpio_range(pmx->pctl, &tegra_pinctrl_gpio_range);
platform_set_drvdata(pdev, pmx);
diff --git a/drivers/pinctrl/tegra/pinctrl-tegra.h b/drivers/pinctrl/tegra/pinctrl-tegra.h
index aa33c20766c4..44c71941b5f8 100644
--- a/drivers/pinctrl/tegra/pinctrl-tegra.h
+++ b/drivers/pinctrl/tegra/pinctrl-tegra.h
@@ -189,6 +189,7 @@ struct tegra_pingroup {
*/
struct tegra_pinctrl_soc_data {
unsigned ngpios;
+ const char *gpio_compatible;
const struct pinctrl_pin_desc *pins;
unsigned npins;
struct tegra_function *functions;
diff --git a/drivers/pinctrl/tegra/pinctrl-tegra114.c b/drivers/pinctrl/tegra/pinctrl-tegra114.c
index 56b33fca1bfc..511a8774fd8d 100644
--- a/drivers/pinctrl/tegra/pinctrl-tegra114.c
+++ b/drivers/pinctrl/tegra/pinctrl-tegra114.c
@@ -1839,6 +1839,7 @@ static const struct tegra_pingroup tegra114_groups[] = {
static const struct tegra_pinctrl_soc_data tegra114_pinctrl = {
.ngpios = NUM_GPIOS,
+ .gpio_compatible = "nvidia,tegra30-gpio",
.pins = tegra114_pins,
.npins = ARRAY_SIZE(tegra114_pins),
.functions = tegra114_functions,
diff --git a/drivers/pinctrl/tegra/pinctrl-tegra124.c b/drivers/pinctrl/tegra/pinctrl-tegra124.c
index 7bc998ace0d5..57e3cdcf4503 100644
--- a/drivers/pinctrl/tegra/pinctrl-tegra124.c
+++ b/drivers/pinctrl/tegra/pinctrl-tegra124.c
@@ -2051,6 +2051,7 @@ static const struct tegra_pingroup tegra124_groups[] = {
static const struct tegra_pinctrl_soc_data tegra124_pinctrl = {
.ngpios = NUM_GPIOS,
+ .gpio_compatible = "nvidia,tegra30-gpio",
.pins = tegra124_pins,
.npins = ARRAY_SIZE(tegra124_pins),
.functions = tegra124_functions,
diff --git a/drivers/pinctrl/tegra/pinctrl-tegra20.c b/drivers/pinctrl/tegra/pinctrl-tegra20.c
index b6dd939d32cc..624889ed3a9d 100644
--- a/drivers/pinctrl/tegra/pinctrl-tegra20.c
+++ b/drivers/pinctrl/tegra/pinctrl-tegra20.c
@@ -2221,6 +2221,7 @@ static const struct tegra_pingroup tegra20_groups[] = {
static const struct tegra_pinctrl_soc_data tegra20_pinctrl = {
.ngpios = NUM_GPIOS,
+ .gpio_compatible = "nvidia,tegra20-gpio",
.pins = tegra20_pins,
.npins = ARRAY_SIZE(tegra20_pins),
.functions = tegra20_functions,
diff --git a/drivers/pinctrl/tegra/pinctrl-tegra210.c b/drivers/pinctrl/tegra/pinctrl-tegra210.c
index c244e5b17bd6..0956a1c73391 100644
--- a/drivers/pinctrl/tegra/pinctrl-tegra210.c
+++ b/drivers/pinctrl/tegra/pinctrl-tegra210.c
@@ -1553,6 +1553,7 @@ static const struct tegra_pingroup tegra210_groups[] = {
static const struct tegra_pinctrl_soc_data tegra210_pinctrl = {
.ngpios = NUM_GPIOS,
+ .gpio_compatible = "nvidia,tegra30-gpio",
.pins = tegra210_pins,
.npins = ARRAY_SIZE(tegra210_pins),
.functions = tegra210_functions,
diff --git a/drivers/pinctrl/tegra/pinctrl-tegra30.c b/drivers/pinctrl/tegra/pinctrl-tegra30.c
index 1f180a20f2ab..c923ad58af84 100644
--- a/drivers/pinctrl/tegra/pinctrl-tegra30.c
+++ b/drivers/pinctrl/tegra/pinctrl-tegra30.c
@@ -2474,6 +2474,7 @@ static const struct tegra_pingroup tegra30_groups[] = {
static const struct tegra_pinctrl_soc_data tegra30_pinctrl = {
.ngpios = NUM_GPIOS,
+ .gpio_compatible = "nvidia,tegra30-gpio",
.pins = tegra30_pins,
.npins = ARRAY_SIZE(tegra30_pins),
.functions = tegra30_functions,
--
2.18.0
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