diff options
Diffstat (limited to 'target/linux/sunxi/patches-3.14/230-net-rfkill-changes.patch')
| -rw-r--r-- | target/linux/sunxi/patches-3.14/230-net-rfkill-changes.patch | 271 |
1 files changed, 271 insertions, 0 deletions
diff --git a/target/linux/sunxi/patches-3.14/230-net-rfkill-changes.patch b/target/linux/sunxi/patches-3.14/230-net-rfkill-changes.patch new file mode 100644 index 0000000000..ca71a915a8 --- /dev/null +++ b/target/linux/sunxi/patches-3.14/230-net-rfkill-changes.patch @@ -0,0 +1,271 @@ +From 5f6f6af41e39677c9b722376a4088d10732cdd44 Mon Sep 17 00:00:00 2001 +From: Chen-Yu Tsai <wens@csie.org> +Date: Fri, 17 Jan 2014 14:47:26 +0800 +Subject: [PATCH] net: rfkill: gpio: fix gpio name buffer size off by 1 + +snprintf should be passed the complete size of the buffer, including +the space for '\0'. The previous code resulted in the *_reset and +*_shutdown strings being truncated. + +Signed-off-by: Chen-Yu Tsai <wens@csie.org> +--- + net/rfkill/rfkill-gpio.c | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +diff --git a/net/rfkill/rfkill-gpio.c b/net/rfkill/rfkill-gpio.c +index bd2a5b9..97ec12a 100644 +--- a/net/rfkill/rfkill-gpio.c ++++ b/net/rfkill/rfkill-gpio.c +@@ -117,8 +117,8 @@ static int rfkill_gpio_probe(struct platform_device *pdev) + if (!rfkill->shutdown_name) + return -ENOMEM; + +- snprintf(rfkill->reset_name, len + 6 , "%s_reset", rfkill->name); +- snprintf(rfkill->shutdown_name, len + 9, "%s_shutdown", rfkill->name); ++ snprintf(rfkill->reset_name, len + 7 , "%s_reset", rfkill->name); ++ snprintf(rfkill->shutdown_name, len + 10, "%s_shutdown", rfkill->name); + + rfkill->clk = devm_clk_get(&pdev->dev, clk_name); + +-- +2.0.3 + +From d91c313c08167978c3fb20b327b6a7abb7b00ffd Mon Sep 17 00:00:00 2001 +From: Chen-Yu Tsai <wens@csie.org> +Date: Fri, 17 Jan 2014 14:47:27 +0800 +Subject: [PATCH] net: rfkill: gpio: use + clk_prepare_enable/clk_disable_unprepare + +rfkill-gpio calls clk_enable() without first calling clk_prepare(), +resulting in a warning and no effect. Switch to clk_prepare_enable() +and clk_disable_unprepare. + +Signed-off-by: Chen-Yu Tsai <wens@csie.org> +--- + net/rfkill/rfkill-gpio.c | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +diff --git a/net/rfkill/rfkill-gpio.c b/net/rfkill/rfkill-gpio.c +index 97ec12a..c7081b7 100644 +--- a/net/rfkill/rfkill-gpio.c ++++ b/net/rfkill/rfkill-gpio.c +@@ -51,10 +51,10 @@ static int rfkill_gpio_set_power(void *data, bool blocked) + gpiod_set_value(rfkill->shutdown_gpio, 0); + gpiod_set_value(rfkill->reset_gpio, 0); + if (!IS_ERR(rfkill->clk) && rfkill->clk_enabled) +- clk_disable(rfkill->clk); ++ clk_disable_unprepare(rfkill->clk); + } else { + if (!IS_ERR(rfkill->clk) && !rfkill->clk_enabled) +- clk_enable(rfkill->clk); ++ clk_prepare_enable(rfkill->clk); + gpiod_set_value(rfkill->reset_gpio, 1); + gpiod_set_value(rfkill->shutdown_gpio, 1); + } +-- +2.0.3 + +From f6dc85e22d3215a26f509fb5b34ca34c56a0d8b4 Mon Sep 17 00:00:00 2001 +From: Chen-Yu Tsai <wens@csie.org> +Date: Fri, 17 Jan 2014 14:47:28 +0800 +Subject: [PATCH] net: rfkill: gpio: fix reversed clock enable state + +rfkill-gpio has clk_enabled = blocked, which is true when rfkill +blocks the device. This results in calling clock enable/disable at +the wrong time. Reversing the value fixes this. + +Signed-off-by: Chen-Yu Tsai <wens@csie.org> +--- + net/rfkill/rfkill-gpio.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/net/rfkill/rfkill-gpio.c b/net/rfkill/rfkill-gpio.c +index c7081b7..3084fa3 100644 +--- a/net/rfkill/rfkill-gpio.c ++++ b/net/rfkill/rfkill-gpio.c +@@ -59,7 +59,7 @@ static int rfkill_gpio_set_power(void *data, bool blocked) + gpiod_set_value(rfkill->shutdown_gpio, 1); + } + +- rfkill->clk_enabled = blocked; ++ rfkill->clk_enabled = !blocked; + + return 0; + } +-- +2.0.3 + +From 57301a41d4a82902e967f6bd9f09ba6ca31fcbed Mon Sep 17 00:00:00 2001 +From: Chen-Yu Tsai <wens@csie.org> +Date: Fri, 17 Jan 2014 14:47:29 +0800 +Subject: [PATCH] net: rfkill: gpio: add device tree support + +Signed-off-by: Chen-Yu Tsai <wens@csie.org> +--- + .../devicetree/bindings/rfkill/rfkill-gpio.txt | 26 ++++++++++++++++++++++ + net/rfkill/rfkill-gpio.c | 23 +++++++++++++++++++ + 2 files changed, 49 insertions(+) + create mode 100644 Documentation/devicetree/bindings/rfkill/rfkill-gpio.txt + +diff --git a/Documentation/devicetree/bindings/rfkill/rfkill-gpio.txt b/Documentation/devicetree/bindings/rfkill/rfkill-gpio.txt +new file mode 100644 +index 0000000..8a07ea4 +--- /dev/null ++++ b/Documentation/devicetree/bindings/rfkill/rfkill-gpio.txt +@@ -0,0 +1,26 @@ ++GPIO controlled RFKILL devices ++ ++Required properties: ++- compatible : Must be "rfkill-gpio". ++- rfkill-name : Name of RFKILL device ++- rfkill-type : Type of RFKILL device: 1 for WiFi, 2 for BlueTooth ++- NAME_shutdown-gpios : GPIO phandle to shutdown control ++ (phandle must be the second) ++- NAME_reset-gpios : GPIO phandle to reset control ++ ++NAME must match the rfkill-name property. NAME_shutdown-gpios or ++NAME_reset-gpios, or both, must be defined. ++ ++Optional properties: ++- clocks : phandle to clock to enable/disable ++ ++Example: ++ ++ rfkill_bt: rfkill@0 { ++ compatible = "rfkill-gpio"; ++ rfkill-name = "bluetooth"; ++ rfkill-type = <2>; ++ bluetooth_shutdown-gpios = <0>, <&pio 7 18 0>; ++ bluetooth_reset-gpios = <&pio 7 24 0>; ++ clocks = <&clk_out_a>; ++ }; +diff --git a/net/rfkill/rfkill-gpio.c b/net/rfkill/rfkill-gpio.c +index 3084fa3..48381a8 100644 +--- a/net/rfkill/rfkill-gpio.c ++++ b/net/rfkill/rfkill-gpio.c +@@ -26,6 +26,7 @@ + #include <linux/slab.h> + #include <linux/acpi.h> + #include <linux/gpio/consumer.h> ++#include <linux/of_gpio.h> + + #include <linux/rfkill-gpio.h> + +@@ -83,6 +84,18 @@ static int rfkill_gpio_acpi_probe(struct device *dev, + return 0; + } + ++static int rfkill_gpio_dt_probe(struct device *dev, ++ struct rfkill_gpio_data *rfkill) ++{ ++ struct device_node * np = dev->of_node; ++ ++ rfkill->name = np->name; ++ of_property_read_string(np, "rfkill-name", &rfkill->name); ++ of_property_read_u32(np, "rfkill-type", &rfkill->type); ++ ++ return 0; ++} ++ + static int rfkill_gpio_probe(struct platform_device *pdev) + { + struct rfkill_gpio_platform_data *pdata = pdev->dev.platform_data; +@@ -100,6 +113,10 @@ static int rfkill_gpio_probe(struct platform_device *pdev) + ret = rfkill_gpio_acpi_probe(&pdev->dev, rfkill); + if (ret) + return ret; ++ } else if (&pdev->dev.of_node) { ++ ret = rfkill_gpio_dt_probe(&pdev->dev, rfkill); ++ if (ret) ++ return ret; + } else if (pdata) { + clk_name = pdata->power_clk_name; + rfkill->name = pdata->name; +@@ -189,6 +206,11 @@ static const struct acpi_device_id rfkill_acpi_match[] = { + { }, + }; + ++static const struct of_device_id rfkill_of_match[] = { ++ { .compatible = "rfkill-gpio", }, ++ {}, ++}; ++ + static struct platform_driver rfkill_gpio_driver = { + .probe = rfkill_gpio_probe, + .remove = rfkill_gpio_remove, +@@ -196,6 +218,7 @@ static struct platform_driver rfkill_gpio_driver = { + .name = "rfkill_gpio", + .owner = THIS_MODULE, + .acpi_match_table = ACPI_PTR(rfkill_acpi_match), ++ .of_match_table = of_match_ptr(rfkill_of_match), + }, + }; + +-- +2.0.3 + +From 83c43937ee8c5fcb38241a8e89c2b93e5b0f9526 Mon Sep 17 00:00:00 2001 +From: Chen-Yu Tsai <wens@csie.org> +Date: Fri, 17 Jan 2014 14:47:30 +0800 +Subject: [PATCH] net: rfkill: gpio: add clock-frequency device tree property + +Some devices, such as Broadcom Bluetooth devices, require a specific +clock rate for the clock tied to the rfkill device. Add clock-frequency +property so we can specify this from the device tree. + +Signed-off-by: Chen-Yu Tsai <wens@csie.org> +--- + Documentation/devicetree/bindings/rfkill/rfkill-gpio.txt | 2 ++ + net/rfkill/rfkill-gpio.c | 4 ++++ + 2 files changed, 6 insertions(+) + +diff --git a/Documentation/devicetree/bindings/rfkill/rfkill-gpio.txt b/Documentation/devicetree/bindings/rfkill/rfkill-gpio.txt +index 8a07ea4..8b8db0a 100644 +--- a/Documentation/devicetree/bindings/rfkill/rfkill-gpio.txt ++++ b/Documentation/devicetree/bindings/rfkill/rfkill-gpio.txt +@@ -13,6 +13,7 @@ NAME_reset-gpios, or both, must be defined. + + Optional properties: + - clocks : phandle to clock to enable/disable ++- clock-frequency : clock rate to set for the given clock + + Example: + +@@ -23,4 +24,5 @@ Example: + bluetooth_shutdown-gpios = <0>, <&pio 7 18 0>; + bluetooth_reset-gpios = <&pio 7 24 0>; + clocks = <&clk_out_a>; ++ clock-frequency = <32678>; + }; +diff --git a/net/rfkill/rfkill-gpio.c b/net/rfkill/rfkill-gpio.c +index 48381a8..3092681 100644 +--- a/net/rfkill/rfkill-gpio.c ++++ b/net/rfkill/rfkill-gpio.c +@@ -40,6 +40,7 @@ struct rfkill_gpio_data { + char *reset_name; + char *shutdown_name; + struct clk *clk; ++ int clk_frequency; + + bool clk_enabled; + }; +@@ -92,6 +93,7 @@ static int rfkill_gpio_dt_probe(struct device *dev, + rfkill->name = np->name; + of_property_read_string(np, "rfkill-name", &rfkill->name); + of_property_read_u32(np, "rfkill-type", &rfkill->type); ++ of_property_read_u32(np, "clock-frequency", &rfkill->clk_frequency); + + return 0; + } +@@ -138,6 +140,8 @@ static int rfkill_gpio_probe(struct platform_device *pdev) + snprintf(rfkill->shutdown_name, len + 10, "%s_shutdown", rfkill->name); + + rfkill->clk = devm_clk_get(&pdev->dev, clk_name); ++ if (!IS_ERR(rfkill->clk) && rfkill->clk_frequency > 0) ++ clk_set_rate(rfkill->clk, rfkill->clk_frequency); + + gpio = devm_gpiod_get_index(&pdev->dev, rfkill->reset_name, 0); + if (!IS_ERR(gpio)) { +-- +2.0.3 + |