diff options
Diffstat (limited to 'target/linux/bcm53xx/patches-5.10/081-v5.15-Revert-pinctrl-bcm-ns-support-updated-DT-binding-as-.patch')
| -rw-r--r-- | target/linux/bcm53xx/patches-5.10/081-v5.15-Revert-pinctrl-bcm-ns-support-updated-DT-binding-as-.patch | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/target/linux/bcm53xx/patches-5.10/081-v5.15-Revert-pinctrl-bcm-ns-support-updated-DT-binding-as-.patch b/target/linux/bcm53xx/patches-5.10/081-v5.15-Revert-pinctrl-bcm-ns-support-updated-DT-binding-as-.patch new file mode 100644 index 0000000000..822716d8e6 --- /dev/null +++ b/target/linux/bcm53xx/patches-5.10/081-v5.15-Revert-pinctrl-bcm-ns-support-updated-DT-binding-as-.patch @@ -0,0 +1,106 @@ +From 6dba4bdfd7a30e77b848a45404b224588bf989e5 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Fri, 8 Oct 2021 22:59:38 +0200 +Subject: [PATCH] Revert "pinctrl: bcm: ns: support updated DT binding as + syscon subnode" +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +This reverts commit a49d784d5a8272d0f63c448fe8dc69e589db006e. + +The updated binding was wrong / invalid and has been reverted. There +isn't any upstream kernel DTS using it and Broadcom isn't known to use +it neither. There is close to zero chance this will cause regression for +anyone. + +Actually in-kernel bcm5301x.dtsi still uses the old good binding and so +it's broken since the driver update. This revert fixes it. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Link: https://lore.kernel.org/r/20211008205938.29925-3-zajec5@gmail.com +Signed-off-by: Linus Walleij <linus.walleij@linaro.org> +--- + drivers/pinctrl/bcm/pinctrl-ns.c | 29 ++++++++++------------------- + 1 file changed, 10 insertions(+), 19 deletions(-) + +--- a/drivers/pinctrl/bcm/pinctrl-ns.c ++++ b/drivers/pinctrl/bcm/pinctrl-ns.c +@@ -5,7 +5,6 @@ + + #include <linux/err.h> + #include <linux/io.h> +-#include <linux/mfd/syscon.h> + #include <linux/module.h> + #include <linux/of.h> + #include <linux/of_device.h> +@@ -13,7 +12,6 @@ + #include <linux/pinctrl/pinctrl.h> + #include <linux/pinctrl/pinmux.h> + #include <linux/platform_device.h> +-#include <linux/regmap.h> + #include <linux/slab.h> + + #define FLAG_BCM4708 BIT(1) +@@ -24,8 +22,7 @@ struct ns_pinctrl { + struct device *dev; + unsigned int chipset_flag; + struct pinctrl_dev *pctldev; +- struct regmap *regmap; +- u32 offset; ++ void __iomem *base; + + struct pinctrl_desc pctldesc; + struct ns_pinctrl_group *groups; +@@ -232,9 +229,9 @@ static int ns_pinctrl_set_mux(struct pin + unset |= BIT(pin_number); + } + +- regmap_read(ns_pinctrl->regmap, ns_pinctrl->offset, &tmp); ++ tmp = readl(ns_pinctrl->base); + tmp &= ~unset; +- regmap_write(ns_pinctrl->regmap, ns_pinctrl->offset, tmp); ++ writel(tmp, ns_pinctrl->base); + + return 0; + } +@@ -266,13 +263,13 @@ static const struct of_device_id ns_pinc + static int ns_pinctrl_probe(struct platform_device *pdev) + { + struct device *dev = &pdev->dev; +- struct device_node *np = dev->of_node; + const struct of_device_id *of_id; + struct ns_pinctrl *ns_pinctrl; + struct pinctrl_desc *pctldesc; + struct pinctrl_pin_desc *pin; + struct ns_pinctrl_group *group; + struct ns_pinctrl_function *function; ++ struct resource *res; + int i; + + ns_pinctrl = devm_kzalloc(dev, sizeof(*ns_pinctrl), GFP_KERNEL); +@@ -290,18 +287,12 @@ static int ns_pinctrl_probe(struct platf + return -EINVAL; + ns_pinctrl->chipset_flag = (uintptr_t)of_id->data; + +- ns_pinctrl->regmap = syscon_node_to_regmap(of_get_parent(np)); +- if (IS_ERR(ns_pinctrl->regmap)) { +- int err = PTR_ERR(ns_pinctrl->regmap); +- +- dev_err(dev, "Failed to map pinctrl regs: %d\n", err); +- +- return err; +- } +- +- if (of_property_read_u32(np, "offset", &ns_pinctrl->offset)) { +- dev_err(dev, "Failed to get register offset\n"); +- return -ENOENT; ++ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, ++ "cru_gpio_control"); ++ ns_pinctrl->base = devm_ioremap_resource(dev, res); ++ if (IS_ERR(ns_pinctrl->base)) { ++ dev_err(dev, "Failed to map pinctrl regs\n"); ++ return PTR_ERR(ns_pinctrl->base); + } + + memcpy(pctldesc, &ns_pinctrl_desc, sizeof(*pctldesc)); |