From: Akshu Agrawal akshu.agrawal@amd.com
DA7219's VDDIO for our platform need to be configured for 1.8V. Hence we register a fixed 1.8V voltage regulator in the machine driver.
Change-Id: I65fd93e1dd37c3e0d38265b4b1492ea53b93afd4 Signed-off-by: Akshu Agrawal akshu.agrawal@amd.com Signed-off-by: Daniel Kurtz djkurtz@chromium.org --- sound/soc/amd/Kconfig | 1 + sound/soc/amd/acp-da7219-max98357a.c | 14 ++++++++++++++ 2 files changed, 15 insertions(+)
diff --git a/sound/soc/amd/Kconfig b/sound/soc/amd/Kconfig index 6cbf9cf4d1a4c2..58c1dcb4d2550f 100644 --- a/sound/soc/amd/Kconfig +++ b/sound/soc/amd/Kconfig @@ -8,6 +8,7 @@ config SND_SOC_AMD_CZ_DA7219MX98357_MACH select SND_SOC_DA7219 select SND_SOC_MAX98357A select SND_SOC_ADAU7002 + select REGULATOR depends on SND_SOC_AMD_ACP && I2C help This option enables machine driver for DA7219 and MAX9835. diff --git a/sound/soc/amd/acp-da7219-max98357a.c b/sound/soc/amd/acp-da7219-max98357a.c index ccddc6650b9c79..6ea0f42f5b7692 100644 --- a/sound/soc/amd/acp-da7219-max98357a.c +++ b/sound/soc/amd/acp-da7219-max98357a.c @@ -32,6 +32,8 @@ #include <linux/clk.h> #include <linux/gpio.h> #include <linux/module.h> +#include <linux/regulator/fixed.h> +#include <linux/regulator/machine.h> #include <linux/i2c.h> #include <linux/input.h> #include <linux/acpi.h> @@ -278,11 +280,23 @@ static struct snd_soc_card cz_card = { .num_controls = ARRAY_SIZE(cz_mc_controls), };
+static struct regulator_consumer_supply acp_da7219_supplies[] = { + REGULATOR_SUPPLY("VDDIO", "i2c-DLGS7219:00") +}; + static int cz_probe(struct platform_device *pdev) { int ret; struct snd_soc_card *card; struct acp_platform_info *machine; + struct platform_device *reg; + + reg = regulator_register_always_on(0, "fixed-1.8V", + acp_da7219_supplies, + ARRAY_SIZE(acp_da7219_supplies), + 1800000); + if (!reg) + return -ENOMEM;
machine = devm_kzalloc(&pdev->dev, sizeof(struct acp_platform_info), GFP_KERNEL);