From: Keith Packard <keithp@keithp.com>
Date: Tue, 6 Dec 2022 03:29:28 +0000 (-0800)
Subject: altos/stm: Add ao_spi_put_pins for MS5607 driver
X-Git-Tag: 1.9.13~1^2~23
X-Git-Url: https://git.gag.com/?a=commitdiff_plain;h=2ea3f551b3c4649320efe2fd999f01012bca03bd;p=fw%2Faltos

altos/stm: Add ao_spi_put_pins for MS5607 driver

This function re-configures the GPIO mux to disconnect the SPI block
from the pins driving the MS5607.

Signed-off-by: Keith Packard <keithp@keithp.com>
---

diff --git a/src/stm/ao_arch_funcs.h b/src/stm/ao_arch_funcs.h
index 9f31a36f..9922513b 100644
--- a/src/stm/ao_arch_funcs.h
+++ b/src/stm/ao_arch_funcs.h
@@ -92,6 +92,9 @@ ao_spi_get(uint8_t spi_index, uint32_t speed);
 void
 ao_spi_put(uint8_t spi_index);
 
+void
+ao_spi_put_pins(uint8_t spi_index);
+
 void
 ao_spi_send(const void *block, uint16_t len, uint8_t spi_index);
 
diff --git a/src/stm/ao_spi_stm.c b/src/stm/ao_spi_stm.c
index 0215f03e..ad8f55b5 100644
--- a/src/stm/ao_spi_stm.c
+++ b/src/stm/ao_spi_stm.c
@@ -427,6 +427,16 @@ ao_spi_put(uint8_t spi_index)
 	ao_mutex_put(&ao_spi_mutex[id]);
 }
 
+void
+ao_spi_put_pins(uint8_t spi_index)
+{
+	uint8_t		id = AO_SPI_INDEX(spi_index);
+
+	ao_spi_disable_pin_config(ao_spi_pin_config[id]);
+	ao_spi_pin_config[id] = AO_SPI_CONFIG_NONE;
+	ao_spi_put(spi_index);
+}
+
 static void
 ao_spi_channel_init(uint8_t spi_index)
 {