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authorQianggui Song <qianggui.song@amlogic.com>2019-11-15 20:03:47 +0800
committerLinus Walleij <linus.walleij@linaro.org>2019-11-19 15:53:58 +0100
commitfd422964071f94783ef10366749c7810ae304488 (patch)
tree86d0a55207ac8f82ee8b3805849dbde0f7c5f7be /drivers/pinctrl
parent58afa801ef22bdc47ed4a1f1d4d9e52ca25777e7 (diff)
pinctrl: meson: add a new callback for SoCs fixup
In meson_pinctrl_parse_dt, it contains two parts: reg parsing and SoC relative fixup for AO. Several fixups in the same code make it hard to maintain, so move all fixups to each SoC's callback and make meson_pinctrl_parse_dt just do the reg parsing, separate these two parts.Overview of all current Meson SoCs fixup is as below: +------+--------------------------------------+--------------------------+ | | | | | SoC | EE domain | AO domain | +------+--------------------------------------+--------------------------+ |m8 | parse regs: | parse regs: | |m8b | gpio,mux,pull,pull-enable(skip ds) | gpio,mux,pull(skip ds)| |gxl | fixup: | fixup: | |gxbb | no | pull-enable = pull; | |axg | | | +------+--------------------------------------+--------------------------+ |g12a | parse regs: | parse regs: | |sm1 | gpio,mux,pull,pull-enable,ds | gpio,mux,ds | | | fixup: | fixup: | | | no | pull = gpio; | | | | pull-enable = gpio; | +------+--------------------------------------+--------------------------+ |a1 or | parse regs: | |later | gpio/mux (without ao domain) | |SoCs | fixup: | | | pull = gpio; pull-enable = gpio; ds = gpio; | +------+-----------------------------------------------------------------+ Since m8-axg share the same ao fixup, make a common function meson8_aobus_parse_dt_extra to do the job. Signed-off-by: Qianggui Song <qianggui.song@amlogic.com> Link: https://lore.kernel.org/r/1573819429-6937-2-git-send-email-qianggui.song@amlogic.com Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl')
-rw-r--r--drivers/pinctrl/meson/pinctrl-meson-axg.c1
-rw-r--r--drivers/pinctrl/meson/pinctrl-meson-g12a.c9
-rw-r--r--drivers/pinctrl/meson/pinctrl-meson-gxbb.c1
-rw-r--r--drivers/pinctrl/meson/pinctrl-meson-gxl.c1
-rw-r--r--drivers/pinctrl/meson/pinctrl-meson.c29
-rw-r--r--drivers/pinctrl/meson/pinctrl-meson.h5
-rw-r--r--drivers/pinctrl/meson/pinctrl-meson8.c1
-rw-r--r--drivers/pinctrl/meson/pinctrl-meson8b.c1
8 files changed, 39 insertions, 9 deletions
diff --git a/drivers/pinctrl/meson/pinctrl-meson-axg.c b/drivers/pinctrl/meson/pinctrl-meson-axg.c
index ad502eda4afa..072765db93d7 100644
--- a/drivers/pinctrl/meson/pinctrl-meson-axg.c
+++ b/drivers/pinctrl/meson/pinctrl-meson-axg.c
@@ -1066,6 +1066,7 @@ static struct meson_pinctrl_data meson_axg_aobus_pinctrl_data = {
.num_banks = ARRAY_SIZE(meson_axg_aobus_banks),
.pmx_ops = &meson_axg_pmx_ops,
.pmx_data = &meson_axg_aobus_pmx_banks_data,
+ .parse_dt = meson8_aobus_parse_dt_extra,
};
static const struct of_device_id meson_axg_pinctrl_dt_match[] = {
diff --git a/drivers/pinctrl/meson/pinctrl-meson-g12a.c b/drivers/pinctrl/meson/pinctrl-meson-g12a.c
index 582665fd362a..41850e3c0091 100644
--- a/drivers/pinctrl/meson/pinctrl-meson-g12a.c
+++ b/drivers/pinctrl/meson/pinctrl-meson-g12a.c
@@ -1362,6 +1362,14 @@ static struct meson_axg_pmx_data meson_g12a_aobus_pmx_banks_data = {
.num_pmx_banks = ARRAY_SIZE(meson_g12a_aobus_pmx_banks),
};
+static int meson_g12a_aobus_parse_dt_extra(struct meson_pinctrl *pc)
+{
+ pc->reg_pull = pc->reg_gpio;
+ pc->reg_pullen = pc->reg_gpio;
+
+ return 0;
+}
+
static struct meson_pinctrl_data meson_g12a_periphs_pinctrl_data = {
.name = "periphs-banks",
.pins = meson_g12a_periphs_pins,
@@ -1388,6 +1396,7 @@ static struct meson_pinctrl_data meson_g12a_aobus_pinctrl_data = {
.num_banks = ARRAY_SIZE(meson_g12a_aobus_banks),
.pmx_ops = &meson_axg_pmx_ops,
.pmx_data = &meson_g12a_aobus_pmx_banks_data,
+ .parse_dt = meson_g12a_aobus_parse_dt_extra,
};
static const struct of_device_id meson_g12a_pinctrl_dt_match[] = {
diff --git a/drivers/pinctrl/meson/pinctrl-meson-gxbb.c b/drivers/pinctrl/meson/pinctrl-meson-gxbb.c
index 5bfa56f3847e..926b9997159a 100644
--- a/drivers/pinctrl/meson/pinctrl-meson-gxbb.c
+++ b/drivers/pinctrl/meson/pinctrl-meson-gxbb.c
@@ -851,6 +851,7 @@ static struct meson_pinctrl_data meson_gxbb_aobus_pinctrl_data = {
.num_funcs = ARRAY_SIZE(meson_gxbb_aobus_functions),
.num_banks = ARRAY_SIZE(meson_gxbb_aobus_banks),
.pmx_ops = &meson8_pmx_ops,
+ .parse_dt = meson8_aobus_parse_dt_extra,
};
static const struct of_device_id meson_gxbb_pinctrl_dt_match[] = {
diff --git a/drivers/pinctrl/meson/pinctrl-meson-gxl.c b/drivers/pinctrl/meson/pinctrl-meson-gxl.c
index 72c5373c8dc1..1b6e8646700f 100644
--- a/drivers/pinctrl/meson/pinctrl-meson-gxl.c
+++ b/drivers/pinctrl/meson/pinctrl-meson-gxl.c
@@ -820,6 +820,7 @@ static struct meson_pinctrl_data meson_gxl_aobus_pinctrl_data = {
.num_funcs = ARRAY_SIZE(meson_gxl_aobus_functions),
.num_banks = ARRAY_SIZE(meson_gxl_aobus_banks),
.pmx_ops = &meson8_pmx_ops,
+ .parse_dt = meson8_aobus_parse_dt_extra,
};
static const struct of_device_id meson_gxl_pinctrl_dt_match[] = {
diff --git a/drivers/pinctrl/meson/pinctrl-meson.c b/drivers/pinctrl/meson/pinctrl-meson.c
index 8bba9d053d9f..26c009f17574 100644
--- a/drivers/pinctrl/meson/pinctrl-meson.c
+++ b/drivers/pinctrl/meson/pinctrl-meson.c
@@ -625,7 +625,7 @@ static struct regmap *meson_map_resource(struct meson_pinctrl *pc,
i = of_property_match_string(node, "reg-names", name);
if (of_address_to_resource(node, i, &res))
- return ERR_PTR(-ENOENT);
+ return NULL;
base = devm_ioremap_resource(pc->dev, &res);
if (IS_ERR(base))
@@ -665,26 +665,24 @@ static int meson_pinctrl_parse_dt(struct meson_pinctrl *pc,
pc->of_node = gpio_np;
pc->reg_mux = meson_map_resource(pc, gpio_np, "mux");
- if (IS_ERR(pc->reg_mux)) {
+ if (IS_ERR_OR_NULL(pc->reg_mux)) {
dev_err(pc->dev, "mux registers not found\n");
- return PTR_ERR(pc->reg_mux);
+ return pc->reg_mux ? PTR_ERR(pc->reg_mux) : -ENOENT;
}
pc->reg_gpio = meson_map_resource(pc, gpio_np, "gpio");
- if (IS_ERR(pc->reg_gpio)) {
+ if (IS_ERR_OR_NULL(pc->reg_gpio)) {
dev_err(pc->dev, "gpio registers not found\n");
- return PTR_ERR(pc->reg_gpio);
+ return pc->reg_gpio ? PTR_ERR(pc->reg_gpio) : -ENOENT;
}
pc->reg_pull = meson_map_resource(pc, gpio_np, "pull");
- /* Use gpio region if pull one is not present */
if (IS_ERR(pc->reg_pull))
- pc->reg_pull = pc->reg_gpio;
+ pc->reg_pull = NULL;
pc->reg_pullen = meson_map_resource(pc, gpio_np, "pull-enable");
- /* Use pull region if pull-enable one is not present */
if (IS_ERR(pc->reg_pullen))
- pc->reg_pullen = pc->reg_pull;
+ pc->reg_pullen = NULL;
pc->reg_ds = meson_map_resource(pc, gpio_np, "ds");
if (IS_ERR(pc->reg_ds)) {
@@ -692,6 +690,19 @@ static int meson_pinctrl_parse_dt(struct meson_pinctrl *pc,
pc->reg_ds = NULL;
}
+ if (pc->data->parse_dt)
+ return pc->data->parse_dt(pc);
+
+ return 0;
+}
+
+int meson8_aobus_parse_dt_extra(struct meson_pinctrl *pc)
+{
+ if (!pc->reg_pull)
+ return -EINVAL;
+
+ pc->reg_pullen = pc->reg_pull;
+
return 0;
}
diff --git a/drivers/pinctrl/meson/pinctrl-meson.h b/drivers/pinctrl/meson/pinctrl-meson.h
index c696f3241a36..bfa1d3599333 100644
--- a/drivers/pinctrl/meson/pinctrl-meson.h
+++ b/drivers/pinctrl/meson/pinctrl-meson.h
@@ -11,6 +11,8 @@
#include <linux/regmap.h>
#include <linux/types.h>
+struct meson_pinctrl;
+
/**
* struct meson_pmx_group - a pinmux group
*
@@ -114,6 +116,7 @@ struct meson_pinctrl_data {
unsigned int num_banks;
const struct pinmux_ops *pmx_ops;
void *pmx_data;
+ int (*parse_dt)(struct meson_pinctrl *pc);
};
struct meson_pinctrl {
@@ -171,3 +174,5 @@ int meson_pmx_get_groups(struct pinctrl_dev *pcdev,
/* Common probe function */
int meson_pinctrl_probe(struct platform_device *pdev);
+/* Common ao groups extra dt parse function for SoCs before g12a */
+int meson8_aobus_parse_dt_extra(struct meson_pinctrl *pc);
diff --git a/drivers/pinctrl/meson/pinctrl-meson8.c b/drivers/pinctrl/meson/pinctrl-meson8.c
index 0b97befa6335..dd17100efdcf 100644
--- a/drivers/pinctrl/meson/pinctrl-meson8.c
+++ b/drivers/pinctrl/meson/pinctrl-meson8.c
@@ -1103,6 +1103,7 @@ static struct meson_pinctrl_data meson8_aobus_pinctrl_data = {
.num_funcs = ARRAY_SIZE(meson8_aobus_functions),
.num_banks = ARRAY_SIZE(meson8_aobus_banks),
.pmx_ops = &meson8_pmx_ops,
+ .parse_dt = &meson8_aobus_parse_dt_extra,
};
static const struct of_device_id meson8_pinctrl_dt_match[] = {
diff --git a/drivers/pinctrl/meson/pinctrl-meson8b.c b/drivers/pinctrl/meson/pinctrl-meson8b.c
index a7de388388e6..2d5339edd0b7 100644
--- a/drivers/pinctrl/meson/pinctrl-meson8b.c
+++ b/drivers/pinctrl/meson/pinctrl-meson8b.c
@@ -962,6 +962,7 @@ static struct meson_pinctrl_data meson8b_aobus_pinctrl_data = {
.num_funcs = ARRAY_SIZE(meson8b_aobus_functions),
.num_banks = ARRAY_SIZE(meson8b_aobus_banks),
.pmx_ops = &meson8_pmx_ops,
+ .parse_dt = &meson8_aobus_parse_dt_extra,
};
static const struct of_device_id meson8b_pinctrl_dt_match[] = {