From: Quentin Schulz Date: Thu, 14 Mar 2024 09:36:23 +0000 (+0100) Subject: rockchip: adc: rockchip-saradc: factor out stop callback X-Git-Url: http://git.dujemihanovic.xyz/%22/img/sics.gif/%22/static/git-favicon.png?a=commitdiff_plain;h=d63c57e104fd3ae37108fb4d502d41d7380770ee;p=u-boot.git 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 Reviewed-by: Kever Yang Signed-off-by: Quentin Schulz --- diff --git a/drivers/adc/rockchip-saradc.c b/drivers/adc/rockchip-saradc.c index 607d10b5b7..b5df58fe3e 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[] = {