[PATCH v2 0/5] ASoC: Convert remaining Realtek codecs to GPIO descriptors
After dropping unused headers a few Realtek devices actually using the GPIO descriptors remain.
Converting them to use optional GPIO descriptors is pretty straight-forward.
Signed-off-by: Linus Walleij linus.walleij@linaro.org --- Changes in v2: - Rebased on asoc-6.6 - Link to v1: https://lore.kernel.org/r/20230817-descriptors-asoc-rt-v1-0-434f5f177cee@lin...
--- Linus Walleij (5): ASoC: rt5640: Convert to just use GPIO descriptors ASoC: rt5665: Convert to use GPIO descriptors ASoC: rt5668: Convert to use GPIO descriptors ASoC: rt5682: Convert to use GPIO descriptors ASoC: rt5682s: Convert to use GPIO descriptors
include/sound/rt5665.h | 2 -- include/sound/rt5668.h | 3 --- include/sound/rt5682.h | 3 --- include/sound/rt5682s.h | 3 --- sound/soc/codecs/rt5640.c | 55 ++++++++++++------------------------------- sound/soc/codecs/rt5640.h | 2 +- sound/soc/codecs/rt5665.c | 17 +++++++------ sound/soc/codecs/rt5668.c | 17 +++++++------ sound/soc/codecs/rt5682-i2c.c | 11 ++++----- sound/soc/codecs/rt5682-sdw.c | 5 ++++ sound/soc/codecs/rt5682.c | 20 ++++++++++++---- sound/soc/codecs/rt5682.h | 3 +++ sound/soc/codecs/rt5682s.c | 16 ++++++------- sound/soc/codecs/rt5682s.h | 2 ++ 14 files changed, 68 insertions(+), 91 deletions(-) --- base-commit: 17b9f4387ebabb19b871bbe2d06562e48e4e7130 change-id: 20230817-descriptors-asoc-rt-9c072934d376
Best regards,
The RT5640 driver is already using GPIO descriptors for some stuff, all that is needed is to convert the remaining LDO1 control line to also use descriptors.
Simplify the code using gpiod_get_optional() and drop the special "of" parsing function: these descriptors need not come from device tree and it's optional so hey.
Keep some NULL checks around the GPIO operations even though gpiolib is essentially NULL-tolerant, because by checking for whether we have a valid GPIO descriptor or not we can avoid a 400 ms delay which is great.
Signed-off-by: Linus Walleij linus.walleij@linaro.org --- sound/soc/codecs/rt5640.c | 55 +++++++++++++---------------------------------- sound/soc/codecs/rt5640.h | 2 +- 2 files changed, 16 insertions(+), 41 deletions(-)
diff --git a/sound/soc/codecs/rt5640.c b/sound/soc/codecs/rt5640.c index eceed8209787..8920726c38e8 100644 --- a/sound/soc/codecs/rt5640.c +++ b/sound/soc/codecs/rt5640.c @@ -12,11 +12,10 @@ #include <linux/init.h> #include <linux/delay.h> #include <linux/pm.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/i2c.h> #include <linux/regmap.h> #include <linux/of.h> -#include <linux/of_gpio.h> #include <linux/platform_device.h> #include <linux/spi/spi.h> #include <linux/acpi.h> @@ -2812,8 +2811,8 @@ static int rt5640_suspend(struct snd_soc_component *component) rt5640_reset(component); regcache_cache_only(rt5640->regmap, true); regcache_mark_dirty(rt5640->regmap); - if (gpio_is_valid(rt5640->ldo1_en)) - gpio_set_value_cansleep(rt5640->ldo1_en, 0); + if (rt5640->ldo1_en) + gpiod_set_value_cansleep(rt5640->ldo1_en, 0);
return 0; } @@ -2822,8 +2821,8 @@ static int rt5640_resume(struct snd_soc_component *component) { struct rt5640_priv *rt5640 = snd_soc_component_get_drvdata(component);
- if (gpio_is_valid(rt5640->ldo1_en)) { - gpio_set_value_cansleep(rt5640->ldo1_en, 1); + if (rt5640->ldo1_en) { + gpiod_set_value_cansleep(rt5640->ldo1_en, 1); msleep(400); }
@@ -2986,22 +2985,6 @@ static const struct acpi_device_id rt5640_acpi_match[] = { MODULE_DEVICE_TABLE(acpi, rt5640_acpi_match); #endif
-static int rt5640_parse_dt(struct rt5640_priv *rt5640, struct device_node *np) -{ - rt5640->ldo1_en = of_get_named_gpio(np, "realtek,ldo1-en-gpios", 0); - /* - * LDO1_EN is optional (it may be statically tied on the board). - * -ENOENT means that the property doesn't exist, i.e. there is no - * GPIO, so is not an error. Any other error code means the property - * exists, but could not be parsed. - */ - if (!gpio_is_valid(rt5640->ldo1_en) && - (rt5640->ldo1_en != -ENOENT)) - return rt5640->ldo1_en; - - return 0; -} - static int rt5640_i2c_probe(struct i2c_client *i2c) { struct rt5640_priv *rt5640; @@ -3015,12 +2998,16 @@ static int rt5640_i2c_probe(struct i2c_client *i2c) return -ENOMEM; i2c_set_clientdata(i2c, rt5640);
- if (i2c->dev.of_node) { - ret = rt5640_parse_dt(rt5640, i2c->dev.of_node); - if (ret) - return ret; - } else - rt5640->ldo1_en = -EINVAL; + rt5640->ldo1_en = devm_gpiod_get_optional(&i2c->dev, + "realtek,ldo1-en", + GPIOD_OUT_HIGH); + if (IS_ERR(rt5640->ldo1_en)) + return PTR_ERR(rt5640->ldo1_en); + + if (rt5640->ldo1_en) { + gpiod_set_consumer_name(rt5640->ldo1_en, "RT5640 LDO1_EN"); + msleep(400); + }
rt5640->regmap = devm_regmap_init_i2c(i2c, &rt5640_regmap); if (IS_ERR(rt5640->regmap)) { @@ -3030,18 +3017,6 @@ static int rt5640_i2c_probe(struct i2c_client *i2c) return ret; }
- if (gpio_is_valid(rt5640->ldo1_en)) { - ret = devm_gpio_request_one(&i2c->dev, rt5640->ldo1_en, - GPIOF_OUT_INIT_HIGH, - "RT5640 LDO1_EN"); - if (ret < 0) { - dev_err(&i2c->dev, "Failed to request LDO1_EN %d: %d\n", - rt5640->ldo1_en, ret); - return ret; - } - msleep(400); - } - regmap_read(rt5640->regmap, RT5640_VENDOR_ID2, &val); if (val != RT5640_DEVICE_ID) { dev_err(&i2c->dev, diff --git a/sound/soc/codecs/rt5640.h b/sound/soc/codecs/rt5640.h index 9847a1ae01f4..94b9a502f7f9 100644 --- a/sound/soc/codecs/rt5640.h +++ b/sound/soc/codecs/rt5640.h @@ -2138,7 +2138,7 @@ struct rt5640_priv { struct regmap *regmap; struct clk *mclk;
- int ldo1_en; /* GPIO for LDO1_EN */ + struct gpio_desc *ldo1_en; /* GPIO for LDO1_EN */ int irq; int jd_gpio_irq; int sysclk;
The RT5665 driver has some stub support for GPIO descriptors going back to the initial driver commit, where there are two GPIO descriptors for the LDO and headphone detection defined in the device state. Well, let's make use of the descriptor properly.
We remove the global GPIO number from the platform data, but it is still possible to create board files using GPIO descriptor tables, if desired.
Signed-off-by: Linus Walleij linus.walleij@linaro.org --- include/sound/rt5665.h | 2 -- sound/soc/codecs/rt5665.c | 17 ++++++++--------- 2 files changed, 8 insertions(+), 11 deletions(-)
diff --git a/include/sound/rt5665.h b/include/sound/rt5665.h index 3b3d6a19ca49..e865f041929b 100644 --- a/include/sound/rt5665.h +++ b/include/sound/rt5665.h @@ -31,8 +31,6 @@ struct rt5665_platform_data { bool in3_diff; bool in4_diff;
- int ldo1_en; /* GPIO for LDO1_EN */ - enum rt5665_dmic1_data_pin dmic1_data_pin; enum rt5665_dmic2_data_pin dmic2_data_pin; enum rt5665_jd_src jd_src; diff --git a/sound/soc/codecs/rt5665.c b/sound/soc/codecs/rt5665.c index 525713c33d71..a39de4a7df00 100644 --- a/sound/soc/codecs/rt5665.c +++ b/sound/soc/codecs/rt5665.c @@ -15,8 +15,7 @@ #include <linux/platform_device.h> #include <linux/spi/spi.h> #include <linux/acpi.h> -#include <linux/gpio.h> -#include <linux/of_gpio.h> +#include <linux/gpio/consumer.h> #include <linux/regulator/consumer.h> #include <linux/mutex.h> #include <sound/core.h> @@ -4659,9 +4658,6 @@ static int rt5665_parse_dt(struct rt5665_priv *rt5665, struct device *dev) of_property_read_u32(dev->of_node, "realtek,jd-src", &rt5665->pdata.jd_src);
- rt5665->pdata.ldo1_en = of_get_named_gpio(dev->of_node, - "realtek,ldo1-en-gpios", 0); - return 0; }
@@ -4795,10 +4791,13 @@ static int rt5665_i2c_probe(struct i2c_client *i2c) return ret; }
- if (gpio_is_valid(rt5665->pdata.ldo1_en)) { - if (devm_gpio_request_one(&i2c->dev, rt5665->pdata.ldo1_en, - GPIOF_OUT_INIT_HIGH, "rt5665")) - dev_err(&i2c->dev, "Fail gpio_request gpio_ldo\n"); + + rt5665->gpiod_ldo1_en = devm_gpiod_get_optional(&i2c->dev, + "realtek,ldo1-en", + GPIOD_OUT_HIGH); + if (IS_ERR(rt5665->gpiod_ldo1_en)) { + dev_err(&i2c->dev, "Failed gpio request ldo1_en\n"); + return PTR_ERR(rt5665->gpiod_ldo1_en); }
/* Sleep for 300 ms miniumum */
Convert the RT5668 to use GPIO descriptors and drop the legacy GPIO headers.
We remove the global GPIO number from the platform data, but it is still possible to create board files using GPIO descriptor tables, if desired.
Signed-off-by: Linus Walleij linus.walleij@linaro.org --- include/sound/rt5668.h | 3 --- sound/soc/codecs/rt5668.c | 17 ++++++++--------- 2 files changed, 8 insertions(+), 12 deletions(-)
diff --git a/include/sound/rt5668.h b/include/sound/rt5668.h index 182edfbc9e7a..b682418c6cd6 100644 --- a/include/sound/rt5668.h +++ b/include/sound/rt5668.h @@ -25,9 +25,6 @@ enum rt5668_jd_src { };
struct rt5668_platform_data { - - int ldo1_en; /* GPIO for LDO1_EN */ - enum rt5668_dmic1_data_pin dmic1_data_pin; enum rt5668_dmic1_clk_pin dmic1_clk_pin; enum rt5668_jd_src jd_src; diff --git a/sound/soc/codecs/rt5668.c b/sound/soc/codecs/rt5668.c index f04c810fd710..4623b3e62487 100644 --- a/sound/soc/codecs/rt5668.c +++ b/sound/soc/codecs/rt5668.c @@ -15,8 +15,7 @@ #include <linux/platform_device.h> #include <linux/spi/spi.h> #include <linux/acpi.h> -#include <linux/gpio.h> -#include <linux/of_gpio.h> +#include <linux/gpio/consumer.h> #include <linux/regulator/consumer.h> #include <linux/mutex.h> #include <sound/core.h> @@ -43,6 +42,7 @@ static const char *rt5668_supply_names[RT5668_NUM_SUPPLIES] = { struct rt5668_priv { struct snd_soc_component *component; struct rt5668_platform_data pdata; + struct gpio_desc *ldo1_en; struct regmap *regmap; struct snd_soc_jack *hs_jack; struct regulator_bulk_data supplies[RT5668_NUM_SUPPLIES]; @@ -2393,9 +2393,6 @@ static int rt5668_parse_dt(struct rt5668_priv *rt5668, struct device *dev) of_property_read_u32(dev->of_node, "realtek,jd-src", &rt5668->pdata.jd_src);
- rt5668->pdata.ldo1_en = of_get_named_gpio(dev->of_node, - "realtek,ldo1-en-gpios", 0); - return 0; }
@@ -2497,10 +2494,12 @@ static int rt5668_i2c_probe(struct i2c_client *i2c) return ret; }
- if (gpio_is_valid(rt5668->pdata.ldo1_en)) { - if (devm_gpio_request_one(&i2c->dev, rt5668->pdata.ldo1_en, - GPIOF_OUT_INIT_HIGH, "rt5668")) - dev_err(&i2c->dev, "Fail gpio_request gpio_ldo\n"); + rt5668->ldo1_en = devm_gpiod_get_optional(&i2c->dev, + "realtek,ldo1-en", + GPIOD_OUT_HIGH); + if (IS_ERR(rt5668->ldo1_en)) { + dev_err(&i2c->dev, "Fail gpio request ldo1_en\n"); + return PTR_ERR(rt5668->ldo1_en); }
/* Sleep for 300 ms miniumum */
Convert the RT5682 to use GPIO descriptors and drop the legacy GPIO headers.
We remove the global GPIO number from the platform data, but it is still possible to create board files using GPIO descriptor tables, if desired.
Make sure to make sure SDW devices can associate with an LDO1 EN descriptor too, if they so desire by putting the lookup into the common code.
Signed-off-by: Linus Walleij linus.walleij@linaro.org --- include/sound/rt5682.h | 3 --- sound/soc/codecs/rt5682-i2c.c | 11 ++++------- sound/soc/codecs/rt5682-sdw.c | 5 +++++ sound/soc/codecs/rt5682.c | 20 +++++++++++++++----- sound/soc/codecs/rt5682.h | 3 +++ 5 files changed, 27 insertions(+), 15 deletions(-)
diff --git a/include/sound/rt5682.h b/include/sound/rt5682.h index 3900a07e3935..4256df721e3a 100644 --- a/include/sound/rt5682.h +++ b/include/sound/rt5682.h @@ -31,9 +31,6 @@ enum rt5682_dai_clks { };
struct rt5682_platform_data { - - int ldo1_en; /* GPIO for LDO1_EN */ - enum rt5682_dmic1_data_pin dmic1_data_pin; enum rt5682_dmic1_clk_pin dmic1_clk_pin; enum rt5682_jd_src jd_src; diff --git a/sound/soc/codecs/rt5682-i2c.c b/sound/soc/codecs/rt5682-i2c.c index fb8ffb5b2ff6..b05b4f73d8aa 100644 --- a/sound/soc/codecs/rt5682-i2c.c +++ b/sound/soc/codecs/rt5682-i2c.c @@ -15,8 +15,7 @@ #include <linux/platform_device.h> #include <linux/spi/spi.h> #include <linux/acpi.h> -#include <linux/gpio.h> -#include <linux/of_gpio.h> +#include <linux/gpio/consumer.h> #include <linux/mutex.h> #include <sound/core.h> #include <sound/pcm.h> @@ -170,11 +169,9 @@ static int rt5682_i2c_probe(struct i2c_client *i2c) return ret; }
- if (gpio_is_valid(rt5682->pdata.ldo1_en)) { - if (devm_gpio_request_one(&i2c->dev, rt5682->pdata.ldo1_en, - GPIOF_OUT_INIT_HIGH, "rt5682")) - dev_err(&i2c->dev, "Fail gpio_request gpio_ldo\n"); - } + ret = rt5682_get_ldo1(rt5682, &i2c->dev); + if (ret) + return ret;
/* Sleep for 300 ms miniumum */ usleep_range(300000, 350000); diff --git a/sound/soc/codecs/rt5682-sdw.c b/sound/soc/codecs/rt5682-sdw.c index 65e9c6dc1a54..e67c2e19cb1a 100644 --- a/sound/soc/codecs/rt5682-sdw.c +++ b/sound/soc/codecs/rt5682-sdw.c @@ -320,6 +320,11 @@ static int rt5682_sdw_init(struct device *dev, struct regmap *regmap, return ret; }
+ + ret = rt5682_get_ldo1(rt5682, dev); + if (ret) + return ret; + regcache_cache_only(rt5682->sdw_regmap, true); regcache_cache_only(rt5682->regmap, true);
diff --git a/sound/soc/codecs/rt5682.c b/sound/soc/codecs/rt5682.c index 694c581070d9..e3aca9c785a0 100644 --- a/sound/soc/codecs/rt5682.c +++ b/sound/soc/codecs/rt5682.c @@ -15,8 +15,7 @@ #include <linux/platform_device.h> #include <linux/spi/spi.h> #include <linux/acpi.h> -#include <linux/gpio.h> -#include <linux/of_gpio.h> +#include <linux/gpio/consumer.h> #include <linux/mutex.h> #include <sound/core.h> #include <sound/pcm.h> @@ -3094,9 +3093,6 @@ int rt5682_parse_dt(struct rt5682_priv *rt5682, struct device *dev) device_property_read_u32(dev, "realtek,dmic-delay-ms", &rt5682->pdata.dmic_delay);
- rt5682->pdata.ldo1_en = of_get_named_gpio(dev->of_node, - "realtek,ldo1-en-gpios", 0); - if (device_property_read_string_array(dev, "clock-output-names", rt5682->pdata.dai_clk_names, RT5682_DAI_NUM_CLKS) < 0) @@ -3111,6 +3107,20 @@ int rt5682_parse_dt(struct rt5682_priv *rt5682, struct device *dev) } EXPORT_SYMBOL_GPL(rt5682_parse_dt);
+int rt5682_get_ldo1(struct rt5682_priv *rt5682, struct device *dev) +{ + rt5682->ldo1_en = devm_gpiod_get_optional(dev, + "realtek,ldo1-en", + GPIOD_OUT_HIGH); + if (IS_ERR(rt5682->ldo1_en)) { + dev_err(dev, "Fail gpio request ldo1_en\n"); + return PTR_ERR(rt5682->ldo1_en); + } + + return 0; +} +EXPORT_SYMBOL_GPL(rt5682_get_ldo1); + void rt5682_calibrate(struct rt5682_priv *rt5682) { int value, count; diff --git a/sound/soc/codecs/rt5682.h b/sound/soc/codecs/rt5682.h index 1a43d595f341..b2d9e87af259 100644 --- a/sound/soc/codecs/rt5682.h +++ b/sound/soc/codecs/rt5682.h @@ -11,6 +11,7 @@
#include <sound/rt5682.h> #include <linux/regulator/consumer.h> +#include <linux/gpio/consumer.h> #include <linux/clk.h> #include <linux/clkdev.h> #include <linux/clk-provider.h> @@ -1430,6 +1431,7 @@ struct rt5682_priv { struct snd_soc_component *component; struct device *i2c_dev; struct rt5682_platform_data pdata; + struct gpio_desc *ldo1_en; struct regmap *regmap; struct regmap *sdw_regmap; struct snd_soc_jack *hs_jack; @@ -1481,6 +1483,7 @@ int rt5682_register_component(struct device *dev); void rt5682_calibrate(struct rt5682_priv *rt5682); void rt5682_reset(struct rt5682_priv *rt5682); int rt5682_parse_dt(struct rt5682_priv *rt5682, struct device *dev); +int rt5682_get_ldo1(struct rt5682_priv *rt5682, struct device *dev);
int rt5682_register_dai_clks(struct rt5682_priv *rt5682);
Convert the RT5682S to use GPIO descriptors and drop the legacy GPIO headers.
We remove the global GPIO number from the platform data, but it is still possible to create board files using GPIO descriptor tables, if desired.
Signed-off-by: Linus Walleij linus.walleij@linaro.org --- include/sound/rt5682s.h | 3 --- sound/soc/codecs/rt5682s.c | 16 +++++++--------- sound/soc/codecs/rt5682s.h | 2 ++ 3 files changed, 9 insertions(+), 12 deletions(-)
diff --git a/include/sound/rt5682s.h b/include/sound/rt5682s.h index f18d91308b9a..66ca0c75b914 100644 --- a/include/sound/rt5682s.h +++ b/include/sound/rt5682s.h @@ -32,9 +32,6 @@ enum rt5682s_dai_clks { };
struct rt5682s_platform_data { - - int ldo1_en; /* GPIO for LDO1_EN */ - enum rt5682s_dmic1_data_pin dmic1_data_pin; enum rt5682s_dmic1_clk_pin dmic1_clk_pin; enum rt5682s_jd_src jd_src; diff --git a/sound/soc/codecs/rt5682s.c b/sound/soc/codecs/rt5682s.c index c77c675bd5f5..68ac5ea50396 100644 --- a/sound/soc/codecs/rt5682s.c +++ b/sound/soc/codecs/rt5682s.c @@ -15,8 +15,7 @@ #include <linux/platform_device.h> #include <linux/spi/spi.h> #include <linux/acpi.h> -#include <linux/gpio.h> -#include <linux/of_gpio.h> +#include <linux/gpio/consumer.h> #include <linux/mutex.h> #include <sound/core.h> #include <sound/pcm.h> @@ -2973,9 +2972,6 @@ static int rt5682s_parse_dt(struct rt5682s_priv *rt5682s, struct device *dev) device_property_read_u32(dev, "realtek,amic-delay-ms", &rt5682s->pdata.amic_delay);
- rt5682s->pdata.ldo1_en = of_get_named_gpio(dev->of_node, - "realtek,ldo1-en-gpios", 0); - if (device_property_read_string_array(dev, "clock-output-names", rt5682s->pdata.dai_clk_names, RT5682S_DAI_NUM_CLKS) < 0) @@ -3172,10 +3168,12 @@ static int rt5682s_i2c_probe(struct i2c_client *i2c) return ret; }
- if (gpio_is_valid(rt5682s->pdata.ldo1_en)) { - if (devm_gpio_request_one(&i2c->dev, rt5682s->pdata.ldo1_en, - GPIOF_OUT_INIT_HIGH, "rt5682s")) - dev_err(&i2c->dev, "Fail gpio_request gpio_ldo\n"); + rt5682s->ldo1_en = devm_gpiod_get_optional(&i2c->dev, + "realtek,ldo1-en", + GPIOD_OUT_HIGH); + if (IS_ERR(rt5682s->ldo1_en)) { + dev_err(&i2c->dev, "Fail gpio request ldo1_en\n"); + return PTR_ERR(rt5682s->ldo1_en); }
/* Sleep for 50 ms minimum */ diff --git a/sound/soc/codecs/rt5682s.h b/sound/soc/codecs/rt5682s.h index caa7733b430f..1d79d432d0d8 100644 --- a/sound/soc/codecs/rt5682s.h +++ b/sound/soc/codecs/rt5682s.h @@ -11,6 +11,7 @@
#include <sound/rt5682s.h> #include <linux/regulator/consumer.h> +#include <linux/gpio/consumer.h> #include <linux/clk.h> #include <linux/clkdev.h> #include <linux/clk-provider.h> @@ -1446,6 +1447,7 @@ enum { struct rt5682s_priv { struct snd_soc_component *component; struct rt5682s_platform_data pdata; + struct gpio_desc *ldo1_en; struct regmap *regmap; struct snd_soc_jack *hs_jack; struct regulator_bulk_data supplies[RT5682S_NUM_SUPPLIES];
On Thu, 17 Aug 2023 16:03:16 +0200, Linus Walleij wrote:
After dropping unused headers a few Realtek devices actually using the GPIO descriptors remain.
Converting them to use optional GPIO descriptors is pretty straight-forward.
[...]
Applied to
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
Thanks!
[1/5] ASoC: rt5640: Convert to just use GPIO descriptors commit: a9b5f21073c0c687068f17e23385ec43fc643b08 [2/5] ASoC: rt5665: Convert to use GPIO descriptors commit: 647a3c4c33cd2c3902cdc07c50f3129166d715f5 [3/5] ASoC: rt5668: Convert to use GPIO descriptors commit: ab2a5d17064436585807f2ece5e6b4b03769a11f [4/5] ASoC: rt5682: Convert to use GPIO descriptors commit: ed11701751d43fb2318c625e65e0507b5234f8a5 [5/5] ASoC: rt5682s: Convert to use GPIO descriptors commit: 8793bee716452e5e2f9bf085fbe01f9e3d1e659f
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.
Please add any relevant lists and maintainers to the CCs when replying to this mail.
Thanks, Mark
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Mark Brown