The patch
ASoC: Intel: bytcr_rt5651: Fix using the wrong GPIO for the ext-amp on some boards
has been applied to the asoc tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
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.
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Thanks, Mark
From 0a3badd141f78535315cca9ff5062a7ebf414281 Mon Sep 17 00:00:00 2001
From: Hans de Goede hdegoede@redhat.com Date: Wed, 18 Jul 2018 22:55:38 +0200 Subject: [PATCH] ASoC: Intel: bytcr_rt5651: Fix using the wrong GPIO for the ext-amp on some boards
Some boards have I2cSerialBusV2, GpioIo, GpioInt as ACPI resources, other boards may have I2cSerialBusV2, GpioInt, GpioIo instead. We want the GpioIo one for the ext-amp-enable-gpio.
So far we've been assuming that the GpioIo one always comes first, this commit adds code to detect which one comes first and to add the right gpio-mapping.
This fixes sound not working on the Vios LTH17 laptop.
Signed-off-by: Hans de Goede hdegoede@redhat.com Acked-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/intel/boards/bytcr_rt5651.c | 69 +++++++++++++++++++++++++-- 1 file changed, 65 insertions(+), 4 deletions(-)
diff --git a/sound/soc/intel/boards/bytcr_rt5651.c b/sound/soc/intel/boards/bytcr_rt5651.c index b687043c8425..601e47c33ba8 100644 --- a/sound/soc/intel/boards/bytcr_rt5651.c +++ b/sound/soc/intel/boards/bytcr_rt5651.c @@ -747,13 +747,74 @@ static const struct x86_cpu_id cherrytrail_cpu_ids[] = { {} };
-static const struct acpi_gpio_params ext_amp_enable_gpios = { 0, 0, false }; +static const struct acpi_gpio_params first_gpio = { 0, 0, false }; +static const struct acpi_gpio_params second_gpio = { 1, 0, false };
-static const struct acpi_gpio_mapping byt_rt5651_gpios[] = { - { "ext-amp-enable-gpios", &ext_amp_enable_gpios, 1 }, +static const struct acpi_gpio_mapping byt_rt5651_amp_en_first[] = { + { "ext-amp-enable-gpios", &first_gpio, 1 }, { }, };
+static const struct acpi_gpio_mapping byt_rt5651_amp_en_second[] = { + { "ext-amp-enable-gpios", &second_gpio, 1 }, + { }, +}; + +/* + * Some boards have I2cSerialBusV2, GpioIo, GpioInt as ACPI resources, other + * boards may have I2cSerialBusV2, GpioInt, GpioIo instead. We want the + * GpioIo one for the ext-amp-enable-gpio and both count for the index in + * acpi_gpio_params index. So we have 2 different mappings and the code + * below figures out which one to use. + */ +struct byt_rt5651_acpi_resource_data { + int gpio_count; + int gpio_int_idx; +}; + +static int snd_byt_rt5651_acpi_resource(struct acpi_resource *ares, void *arg) +{ + struct byt_rt5651_acpi_resource_data *data = arg; + + if (ares->type != ACPI_RESOURCE_TYPE_GPIO) + return 0; + + if (ares->data.gpio.connection_type == ACPI_RESOURCE_GPIO_TYPE_INT) + data->gpio_int_idx = data->gpio_count; + + data->gpio_count++; + return 0; +} + +static void snd_byt_rt5651_mc_add_amp_en_gpio_mapping(struct device *codec) +{ + struct byt_rt5651_acpi_resource_data data = { 0, -1 }; + LIST_HEAD(resources); + int ret; + + ret = acpi_dev_get_resources(ACPI_COMPANION(codec), &resources, + snd_byt_rt5651_acpi_resource, &data); + if (ret < 0) { + dev_warn(codec, "Failed to get ACPI resources, not adding external amplifier GPIO mapping\n"); + return; + } + + /* All info we need is gathered during the walk */ + acpi_dev_free_resource_list(&resources); + + switch (data.gpio_int_idx) { + case 0: + devm_acpi_dev_add_driver_gpios(codec, byt_rt5651_amp_en_second); + break; + case 1: + devm_acpi_dev_add_driver_gpios(codec, byt_rt5651_amp_en_first); + break; + default: + dev_warn(codec, "Unknown GpioInt index %d, not adding external amplifier GPIO mapping\n", + data.gpio_int_idx); + } +} + struct acpi_chan_package { /* ACPICA seems to require 64 bit integers */ u64 aif_value; /* 1: AIF1, 2: AIF2 */ u64 mclock_value; /* usually 25MHz (0x17d7940), ignored */ @@ -876,7 +937,7 @@ static int snd_byt_rt5651_mc_probe(struct platform_device *pdev)
/* Cherry Trail devices use an external amplifier enable gpio */ if (x86_match_cpu(cherrytrail_cpu_ids)) { - devm_acpi_dev_add_driver_gpios(codec_dev, byt_rt5651_gpios); + snd_byt_rt5651_mc_add_amp_en_gpio_mapping(codec_dev); priv->ext_amp_gpio = devm_fwnode_get_index_gpiod_from_child( &pdev->dev, "ext-amp-enable", 0, codec_dev->fwnode,