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| author | Quentin Schulz <quentin.schulz@theobroma-systems.com> | 2024-03-14 10:36:23 +0100 |
|---|---|---|
| committer | Kever Yang <kever.yang@rock-chips.com> | 2024-03-14 18:19:44 +0800 |
| commit | d63c57e104fd3ae37108fb4d502d41d7380770ee (patch) | |
| tree | 1985f8a1f1b4e24a0d356f8e4ff81fbb91a63ec9 | |
| parent | 257752551229f04567ac6ddde651b407c8c74e8f (diff) | |
| download | u-boot-d63c57e104fd3ae37108fb4d502d41d7380770ee.zip u-boot-d63c57e104fd3ae37108fb4d502d41d7380770ee.tar.gz u-boot-d63c57e104fd3ae37108fb4d502d41d7380770ee.tar.bz2 | |
rockchip: adc: rockchip-saradc: factor out stop callback
SARADC v2 doesn't have a stop mechanism once in single mode. In series
conversion, the logic is different anyway. Therefore, let's abstract
this function so that it can be provided from the udevice.data pointer.
Cc: Quentin Schulz <foss+uboot@0leil.net>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
| -rw-r--r-- | drivers/adc/rockchip-saradc.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/drivers/adc/rockchip-saradc.c b/drivers/adc/rockchip-saradc.c index 607d10b..b5df58f 100644 --- a/drivers/adc/rockchip-saradc.c +++ b/drivers/adc/rockchip-saradc.c @@ -39,6 +39,7 @@ struct rockchip_saradc_data { unsigned long clk_rate; int (*channel_data)(struct udevice *dev, int channel, unsigned int *data); int (*start_channel)(struct udevice *dev, int channel); + int (*stop)(struct udevice *dev); }; struct rockchip_saradc_priv { @@ -124,13 +125,29 @@ int rockchip_saradc_start_channel(struct udevice *dev, int channel) return 0; } -int rockchip_saradc_stop(struct udevice *dev) +int rockchip_saradc_stop_v1(struct udevice *dev) { struct rockchip_saradc_priv *priv = dev_get_priv(dev); /* Power down adc */ writel(0, &priv->regs.v1->ctrl); + return 0; +} + +int rockchip_saradc_stop(struct udevice *dev) +{ + struct rockchip_saradc_priv *priv = dev_get_priv(dev); + + if (priv->data->stop) { + int ret = priv->data->stop(dev); + + if (ret) { + pr_err("Error stopping channel, %d!", ret); + return ret; + } + } + priv->active_channel = -1; return 0; @@ -209,6 +226,7 @@ static const struct rockchip_saradc_data saradc_data = { .clk_rate = 1000000, .channel_data = rockchip_saradc_channel_data_v1, .start_channel = rockchip_saradc_start_channel_v1, + .stop = rockchip_saradc_stop_v1, }; static const struct rockchip_saradc_data rk3066_tsadc_data = { @@ -217,6 +235,7 @@ static const struct rockchip_saradc_data rk3066_tsadc_data = { .clk_rate = 50000, .channel_data = rockchip_saradc_channel_data_v1, .start_channel = rockchip_saradc_start_channel_v1, + .stop = rockchip_saradc_stop_v1, }; static const struct rockchip_saradc_data rk3399_saradc_data = { @@ -225,6 +244,7 @@ static const struct rockchip_saradc_data rk3399_saradc_data = { .clk_rate = 1000000, .channel_data = rockchip_saradc_channel_data_v1, .start_channel = rockchip_saradc_start_channel_v1, + .stop = rockchip_saradc_stop_v1, }; static const struct udevice_id rockchip_saradc_ids[] = { |