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Tue, 04 Mar 2025 23:39:19 -0800 (PST) From: Linus Walleij Date: Wed, 05 Mar 2025 08:39:16 +0100 Subject: [PATCH v2 4/6] ASoC: samsung: speyside: Convert to GPIO descriptor Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250305-samsung-codecs-v2-4-20bc980c6445@linaro.org> References: <20250305-samsung-codecs-v2-0-20bc980c6445@linaro.org> In-Reply-To: <20250305-samsung-codecs-v2-0-20bc980c6445@linaro.org> To: Sylwester Nawrocki , Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai , Bartosz Golaszewski Cc: linux-sound@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-gpio@vger.kernel.org, Linus Walleij X-Mailer: b4 0.14.2 The Speyside ASoC uses a single GPIO from the WM8996 that we can provide from the local offset on that chip rather than from the global GPIO numberspace as is being done currently. The offset 2 was done by calculating the base offset for the CODEC (i.e. wm8996) GPIOs to 212, by reading arch/arm/mach-s3c/gpio-samsung-s3c64xx.h and arch/arm/mach-s3c/crag6410.h and adding up all the offsets that were occasionally adding a +1 blank GPIO between each GPIO provider. Signed-off-by: Linus Walleij --- ChangeLog v1->v2: - Patch in a devm action to drop the gpiod table. --- sound/soc/samsung/speyside.c | 47 +++++++++++++++++++++++++++++++++++++------- 1 file changed, 40 insertions(+), 7 deletions(-) diff --git a/sound/soc/samsung/speyside.c b/sound/soc/samsung/speyside.c index 79476e8eb680984434a1198ff691ddd4b9fe07c1..d6b8c62e015a3114c7a746e1f754217ffacb7044 100644 --- a/sound/soc/samsung/speyside.c +++ b/sound/soc/samsung/speyside.c @@ -7,13 +7,13 @@ #include #include #include -#include +#include +#include #include #include "../codecs/wm8996.h" #include "../codecs/wm9081.h" -#define WM8996_HPSEL_GPIO 214 #define MCLK_AUDIO_RATE (512 * 48000) static int speyside_set_bias_level(struct snd_soc_card *card, @@ -105,6 +105,7 @@ static struct snd_soc_jack_pin speyside_headset_pins[] = { }, }; +static struct gpio_desc *speyside_hpsel_gpio; /* Default the headphone selection to active high */ static int speyside_jack_polarity; @@ -123,7 +124,7 @@ static void speyside_set_polarity(struct snd_soc_component *component, int polarity) { speyside_jack_polarity = !polarity; - gpio_direction_output(WM8996_HPSEL_GPIO, speyside_jack_polarity); + gpiod_direction_output(speyside_hpsel_gpio, speyside_jack_polarity); /* Re-run DAPM to make sure we're using the correct mic bias */ snd_soc_dapm_sync(snd_soc_component_get_dapm(component)); @@ -145,16 +146,22 @@ static int speyside_wm8996_init(struct snd_soc_pcm_runtime *rtd) { struct snd_soc_dai *dai = snd_soc_rtd_to_codec(rtd, 0); struct snd_soc_component *component = dai->component; + enum gpiod_flags flags; int ret; ret = snd_soc_dai_set_sysclk(dai, WM8996_SYSCLK_MCLK2, 32768, 0); if (ret < 0) return ret; - ret = gpio_request(WM8996_HPSEL_GPIO, "HP_SEL"); - if (ret != 0) - pr_err("Failed to request HP_SEL GPIO: %d\n", ret); - gpio_direction_output(WM8996_HPSEL_GPIO, speyside_jack_polarity); + if (speyside_jack_polarity) + flags = GPIOD_OUT_HIGH; + else + flags = GPIOD_OUT_LOW; + speyside_hpsel_gpio = devm_gpiod_get(rtd->card->dev, + "hp-sel", + flags); + if (IS_ERR(speyside_hpsel_gpio)) + return PTR_ERR(speyside_hpsel_gpio); ret = snd_soc_card_jack_new_pins(rtd->card, "Headset", SND_JACK_LINEOUT | SND_JACK_HEADSET | @@ -325,6 +332,26 @@ static struct snd_soc_card speyside = { .late_probe = speyside_late_probe, }; +static struct gpiod_lookup_table wm8996_gpiod_table = { + /* Hardcoded device name in board file mach-crag6410.c */ + .dev_id = "speyside", + .table = { + /* + * This line was hardcoded to 214 in the global GPIO + * number space, S3C GPIO macros seems top set the + * wm8996 codec GPIO start offset to 212, so this will + * be GPIO 214 - 212 = 2 on the wm8996. + */ + GPIO_LOOKUP("wm8996", 2, "hp-sel", GPIO_ACTIVE_HIGH), + { }, + }, +}; + +static void speyside_gpiod_table_action(void *data) +{ + gpiod_remove_lookup_table(&wm8996_gpiod_table); +} + static int speyside_probe(struct platform_device *pdev) { struct snd_soc_card *card = &speyside; @@ -332,6 +359,12 @@ static int speyside_probe(struct platform_device *pdev) card->dev = &pdev->dev; + gpiod_add_lookup_table(&wm8996_gpiod_table); + ret = devm_add_action_or_reset(&pdev->dev, speyside_gpiod_table_action, + NULL); + if (ret) + return ret; + ret = devm_snd_soc_register_card(&pdev->dev, card); if (ret) dev_err_probe(&pdev->dev, ret, "snd_soc_register_card() failed\n"); -- 2.48.1