* [PATCH 0/3] Enable RTP (GPADC) controller on Allwinner R40
@ 2021-11-19 19:14 Evgeny Boger
2021-11-19 19:14 ` [PATCH 1/3] iio: adc: sun4i-gpadc-iio: no temp sensor on R40 Evgeny Boger
` (2 more replies)
0 siblings, 3 replies; 11+ messages in thread
From: Evgeny Boger @ 2021-11-19 19:14 UTC (permalink / raw)
To: Chen-Yu Tsai, linux-sunxi, Maxime Ripard
Cc: Evgeny Boger, Lee Jones, Rob Herring, devicetree, Jernej Skrabec,
linux-arm-kernel
R40 SoC has touchscreen controller also serving as general-purpose ADC.
The hardware is very similar to A31, except that R40 has separate
calibrated thermal sensor IP, so temperature sensing channel in RTP is
not documented and is not to be used.
Evgeny Boger (3):
iio: adc: sun4i-gpadc-iio: no temp sensor on R40
dt-bindings: iio: adc: new compatible for Allwinner R40 RTP controller
ARM: dts: sun8i: r40: add rtp node
.../bindings/mfd/allwinner,sun4i-a10-ts.yaml | 1 +
arch/arm/boot/dts/sun8i-r40.dtsi | 8 +++++
drivers/iio/adc/sun4i-gpadc-iio.c | 32 ++++++++++++++-----
drivers/mfd/sun4i-gpadc.c | 17 ++++++++++
4 files changed, 50 insertions(+), 8 deletions(-)
--
2.25.1
^ permalink raw reply [flat|nested] 11+ messages in thread* [PATCH 1/3] iio: adc: sun4i-gpadc-iio: no temp sensor on R40 2021-11-19 19:14 [PATCH 0/3] Enable RTP (GPADC) controller on Allwinner R40 Evgeny Boger @ 2021-11-19 19:14 ` Evgeny Boger 2021-11-22 9:11 ` Maxime Ripard 2022-01-17 9:00 ` Lee Jones 2021-11-19 19:14 ` [PATCH 2/3] dt-bindings: iio: adc: new compatible for Allwinner R40 RTP controller Evgeny Boger 2021-11-19 19:14 ` [PATCH 3/3] ARM: dts: sun8i: r40: add rtp node Evgeny Boger 2 siblings, 2 replies; 11+ messages in thread From: Evgeny Boger @ 2021-11-19 19:14 UTC (permalink / raw) To: Chen-Yu Tsai, linux-sunxi, Maxime Ripard Cc: Evgeny Boger, Lee Jones, Rob Herring, devicetree, Jernej Skrabec, linux-arm-kernel R40 SoC has touchscreen controller also serving as general-purpose ADC. The hardware is very similar to A31, except that R40 has separate calibrated thermal sensor IP (handled by sun8i_thermal). Despite the temperature sensor in the RTP is never mentioned in the R40 family user manuals, it appears to be working. However, it's not very useful as it lacks calibration data and there is another fully functioning temperature sensor anyway. This patch disables the temperature sensor in RTP/GPADC IP on R40. The reason for disabling the temperature sensor is that the IP needs to be switched back and forth between RTP and GPADC modes for temperature measurements. Not only this introduces delays, but it also disturbs external circuitry by injecting current into ADC inputs. Signed-off-by: Evgeny Boger <boger@wirenboard.com> --- drivers/iio/adc/sun4i-gpadc-iio.c | 32 +++++++++++++++++++++++-------- drivers/mfd/sun4i-gpadc.c | 17 ++++++++++++++++ 2 files changed, 41 insertions(+), 8 deletions(-) diff --git a/drivers/iio/adc/sun4i-gpadc-iio.c b/drivers/iio/adc/sun4i-gpadc-iio.c index 2d393a4dfff6..e63a45c092ab 100644 --- a/drivers/iio/adc/sun4i-gpadc-iio.c +++ b/drivers/iio/adc/sun4i-gpadc-iio.c @@ -53,6 +53,7 @@ struct gpadc_data { unsigned int tp_adc_select; unsigned int (*adc_chan_select)(unsigned int chan); unsigned int adc_chan_mask; + bool has_temp_sensor; }; static const struct gpadc_data sun4i_gpadc_data = { @@ -62,6 +63,7 @@ static const struct gpadc_data sun4i_gpadc_data = { .tp_adc_select = SUN4I_GPADC_CTRL1_TP_ADC_SELECT, .adc_chan_select = &sun4i_gpadc_chan_select, .adc_chan_mask = SUN4I_GPADC_CTRL1_ADC_CHAN_MASK, + .has_temp_sensor = true, }; static const struct gpadc_data sun5i_gpadc_data = { @@ -71,6 +73,7 @@ static const struct gpadc_data sun5i_gpadc_data = { .tp_adc_select = SUN4I_GPADC_CTRL1_TP_ADC_SELECT, .adc_chan_select = &sun4i_gpadc_chan_select, .adc_chan_mask = SUN4I_GPADC_CTRL1_ADC_CHAN_MASK, + .has_temp_sensor = true, }; static const struct gpadc_data sun6i_gpadc_data = { @@ -80,12 +83,24 @@ static const struct gpadc_data sun6i_gpadc_data = { .tp_adc_select = SUN6I_GPADC_CTRL1_TP_ADC_SELECT, .adc_chan_select = &sun6i_gpadc_chan_select, .adc_chan_mask = SUN6I_GPADC_CTRL1_ADC_CHAN_MASK, + .has_temp_sensor = true, +}; + +static const struct gpadc_data sun8i_r40_gpadc_data = { + .temp_offset = -1623, + .temp_scale = 167, + .tp_mode_en = SUN6I_GPADC_CTRL1_TP_MODE_EN, + .tp_adc_select = SUN6I_GPADC_CTRL1_TP_ADC_SELECT, + .adc_chan_select = &sun6i_gpadc_chan_select, + .adc_chan_mask = SUN6I_GPADC_CTRL1_ADC_CHAN_MASK, + .has_temp_sensor = false, }; static const struct gpadc_data sun8i_a33_gpadc_data = { .temp_offset = -1662, .temp_scale = 162, .tp_mode_en = SUN8I_GPADC_CTRL1_CHOP_TEMP_EN, + .has_temp_sensor = true, }; struct sun4i_gpadc_iio { @@ -499,7 +514,7 @@ static int sun4i_gpadc_probe_dt(struct platform_device *pdev, void __iomem *base; int ret; - info->data = of_device_get_match_data(&pdev->dev); + info->data = (struct gpadc_data *)of_device_get_match_data(&pdev->dev); if (!info->data) return -ENODEV; @@ -519,7 +534,7 @@ static int sun4i_gpadc_probe_dt(struct platform_device *pdev, return ret; } - if (IS_ENABLED(CONFIG_THERMAL_OF)) + if (IS_ENABLED(CONFIG_THERMAL_OF) && info->data->has_temp_sensor) info->sensor_device = &pdev->dev; return 0; @@ -552,7 +567,7 @@ static int sun4i_gpadc_probe_mfd(struct platform_device *pdev, * that choice to the user. */ - if (IS_ENABLED(CONFIG_THERMAL_OF)) { + if (IS_ENABLED(CONFIG_THERMAL_OF) && info->data->has_temp_sensor) { /* * This driver is a child of an MFD which has a node in the DT * but not its children, because of DT backward compatibility @@ -575,7 +590,7 @@ static int sun4i_gpadc_probe_mfd(struct platform_device *pdev, indio_dev->channels = sun4i_gpadc_channels_no_temp; } - if (IS_ENABLED(CONFIG_THERMAL_OF)) { + if (IS_ENABLED(CONFIG_THERMAL_OF) && info->data->has_temp_sensor) { ret = sun4i_irq_init(pdev, "TEMP_DATA_PENDING", sun4i_gpadc_temp_data_irq_handler, "temp_data", &info->temp_data_irq, @@ -590,7 +605,7 @@ static int sun4i_gpadc_probe_mfd(struct platform_device *pdev, if (ret < 0) return ret; - if (IS_ENABLED(CONFIG_THERMAL_OF)) { + if (IS_ENABLED(CONFIG_THERMAL_OF) && info->data->has_temp_sensor) { ret = iio_map_array_register(indio_dev, sun4i_gpadc_hwmon_maps); if (ret < 0) { dev_err(&pdev->dev, @@ -636,7 +651,7 @@ static int sun4i_gpadc_probe(struct platform_device *pdev) pm_runtime_set_suspended(&pdev->dev); pm_runtime_enable(&pdev->dev); - if (IS_ENABLED(CONFIG_THERMAL_OF)) { + if (IS_ENABLED(CONFIG_THERMAL_OF) && info->data->has_temp_sensor) { info->tzd = thermal_zone_of_sensor_register(info->sensor_device, 0, info, &sun4i_ts_tz_ops); @@ -661,7 +676,7 @@ static int sun4i_gpadc_probe(struct platform_device *pdev) return 0; err_map: - if (!info->no_irq && IS_ENABLED(CONFIG_THERMAL_OF)) + if (!info->no_irq && IS_ENABLED(CONFIG_THERMAL_OF) && info->data->has_temp_sensor) iio_map_array_unregister(indio_dev); pm_runtime_put(&pdev->dev); @@ -678,7 +693,7 @@ static int sun4i_gpadc_remove(struct platform_device *pdev) pm_runtime_put(&pdev->dev); pm_runtime_disable(&pdev->dev); - if (!IS_ENABLED(CONFIG_THERMAL_OF)) + if (!IS_ENABLED(CONFIG_THERMAL_OF) || !info->data->has_temp_sensor) return 0; thermal_zone_of_sensor_unregister(info->sensor_device, info->tzd); @@ -693,6 +708,7 @@ static const struct platform_device_id sun4i_gpadc_id[] = { { "sun4i-a10-gpadc-iio", (kernel_ulong_t)&sun4i_gpadc_data }, { "sun5i-a13-gpadc-iio", (kernel_ulong_t)&sun5i_gpadc_data }, { "sun6i-a31-gpadc-iio", (kernel_ulong_t)&sun6i_gpadc_data }, + { "sun8i-r40-gpadc-iio", (kernel_ulong_t)&sun8i_r40_gpadc_data }, { /* sentinel */ }, }; MODULE_DEVICE_TABLE(platform, sun4i_gpadc_id); diff --git a/drivers/mfd/sun4i-gpadc.c b/drivers/mfd/sun4i-gpadc.c index cfe14d9bf6dc..293acad52e5a 100644 --- a/drivers/mfd/sun4i-gpadc.c +++ b/drivers/mfd/sun4i-gpadc.c @@ -17,6 +17,7 @@ #define ARCH_SUN4I_A10 0 #define ARCH_SUN5I_A13 1 #define ARCH_SUN6I_A31 2 +#define ARCH_SUN8I_R40 3 static const struct resource adc_resources[] = { DEFINE_RES_IRQ_NAMED(SUN4I_GPADC_IRQ_FIFO_DATA, "FIFO_DATA_PENDING"), @@ -69,6 +70,15 @@ static struct mfd_cell sun6i_gpadc_cells[] = { { .name = "iio_hwmon" }, }; +static struct mfd_cell sun8i_r40_gpadc_cells[] = { + { + .name = "sun8i-r40-gpadc-iio", + .resources = adc_resources, + .num_resources = ARRAY_SIZE(adc_resources), + }, + { .name = "iio_hwmon" }, +}; + static const struct regmap_config sun4i_gpadc_regmap_config = { .reg_bits = 32, .val_bits = 32, @@ -86,6 +96,9 @@ static const struct of_device_id sun4i_gpadc_of_match[] = { }, { .compatible = "allwinner,sun6i-a31-ts", .data = (void *)ARCH_SUN6I_A31, + }, { + .compatible = "allwinner,sun8i-r40-ts", + .data = (void *)ARCH_SUN8I_R40, }, { /* sentinel */ } }; @@ -117,6 +130,10 @@ static int sun4i_gpadc_probe(struct platform_device *pdev) cells = sun6i_gpadc_cells; size = ARRAY_SIZE(sun6i_gpadc_cells); break; + case ARCH_SUN8I_R40: + cells = sun8i_r40_gpadc_cells; + size = ARRAY_SIZE(sun8i_r40_gpadc_cells); + break; default: return -EINVAL; } -- 2.25.1 ^ permalink raw reply related [flat|nested] 11+ messages in thread
* Re: [PATCH 1/3] iio: adc: sun4i-gpadc-iio: no temp sensor on R40 2021-11-19 19:14 ` [PATCH 1/3] iio: adc: sun4i-gpadc-iio: no temp sensor on R40 Evgeny Boger @ 2021-11-22 9:11 ` Maxime Ripard 2021-11-22 12:41 ` Jonathan Cameron 2022-01-17 9:00 ` Lee Jones 1 sibling, 1 reply; 11+ messages in thread From: Maxime Ripard @ 2021-11-22 9:11 UTC (permalink / raw) To: Evgeny Boger Cc: Chen-Yu Tsai, linux-sunxi, Lee Jones, Rob Herring, devicetree, Jernej Skrabec, linux-arm-kernel [-- Attachment #1: Type: text/plain, Size: 1000 bytes --] On Fri, Nov 19, 2021 at 10:14:54PM +0300, Evgeny Boger wrote: > R40 SoC has touchscreen controller also serving as general-purpose ADC. > The hardware is very similar to A31, except that R40 has separate > calibrated thermal sensor IP (handled by sun8i_thermal). > > Despite the temperature sensor in the RTP is never mentioned in > the R40 family user manuals, it appears to be working. However, > it's not very useful as it lacks calibration data and there is another > fully functioning temperature sensor anyway. > > This patch disables the temperature sensor in RTP/GPADC IP on R40. > > The reason for disabling the temperature sensor is that the IP > needs to be switched back and forth between RTP and GPADC modes for > temperature measurements. Not only this introduces delays, but it also > disturbs external circuitry by injecting current into ADC inputs. > > Signed-off-by: Evgeny Boger <boger@wirenboard.com> Acked-by: Maxime Ripard <maxime@cerno.tech> Maxime [-- Attachment #2: signature.asc --] [-- Type: application/pgp-signature, Size: 228 bytes --] ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [PATCH 1/3] iio: adc: sun4i-gpadc-iio: no temp sensor on R40 2021-11-22 9:11 ` Maxime Ripard @ 2021-11-22 12:41 ` Jonathan Cameron 2022-01-11 13:13 ` Evgeny Boger 0 siblings, 1 reply; 11+ messages in thread From: Jonathan Cameron @ 2021-11-22 12:41 UTC (permalink / raw) To: Maxime Ripard Cc: Evgeny Boger, Chen-Yu Tsai, linux-sunxi, Lee Jones, Rob Herring, devicetree, Jernej Skrabec, linux-arm-kernel, linux-iio On Mon, 22 Nov 2021 10:11:32 +0100 Maxime Ripard <maxime@cerno.tech> wrote: > On Fri, Nov 19, 2021 at 10:14:54PM +0300, Evgeny Boger wrote: > > R40 SoC has touchscreen controller also serving as general-purpose ADC. > > The hardware is very similar to A31, except that R40 has separate > > calibrated thermal sensor IP (handled by sun8i_thermal). > > > > Despite the temperature sensor in the RTP is never mentioned in > > the R40 family user manuals, it appears to be working. However, > > it's not very useful as it lacks calibration data and there is another > > fully functioning temperature sensor anyway. > > > > This patch disables the temperature sensor in RTP/GPADC IP on R40. > > > > The reason for disabling the temperature sensor is that the IP > > needs to be switched back and forth between RTP and GPADC modes for > > temperature measurements. Not only this introduces delays, but it also > > disturbs external circuitry by injecting current into ADC inputs. > > > > Signed-off-by: Evgeny Boger <boger@wirenboard.com> > > Acked-by: Maxime Ripard <maxime@cerno.tech> +Cc linux-iio@vger.kernel.org I'm fine with this and assuming Lee is happy to pick it up + send me an immutable branch in case anything crosses with it this cycle.. Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Thanks, Jonathan > > Maxime > ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [PATCH 1/3] iio: adc: sun4i-gpadc-iio: no temp sensor on R40 2021-11-22 12:41 ` Jonathan Cameron @ 2022-01-11 13:13 ` Evgeny Boger 2022-01-15 15:41 ` Jonathan Cameron 0 siblings, 1 reply; 11+ messages in thread From: Evgeny Boger @ 2022-01-11 13:13 UTC (permalink / raw) To: Jonathan Cameron, Maxime Ripard Cc: Chen-Yu Tsai, linux-sunxi, Lee Jones, Rob Herring, devicetree, Jernej Skrabec, linux-arm-kernel, linux-iio 22.11.2021 15:41, Jonathan Cameron пишет: > On Mon, 22 Nov 2021 10:11:32 +0100 > Maxime Ripard <maxime@cerno.tech> wrote: > >> On Fri, Nov 19, 2021 at 10:14:54PM +0300, Evgeny Boger wrote: >>> R40 SoC has touchscreen controller also serving as general-purpose ADC. >>> The hardware is very similar to A31, except that R40 has separate >>> calibrated thermal sensor IP (handled by sun8i_thermal). >>> >>> Despite the temperature sensor in the RTP is never mentioned in >>> the R40 family user manuals, it appears to be working. However, >>> it's not very useful as it lacks calibration data and there is another >>> fully functioning temperature sensor anyway. >>> >>> This patch disables the temperature sensor in RTP/GPADC IP on R40. >>> >>> The reason for disabling the temperature sensor is that the IP >>> needs to be switched back and forth between RTP and GPADC modes for >>> temperature measurements. Not only this introduces delays, but it also >>> disturbs external circuitry by injecting current into ADC inputs. >>> >>> Signed-off-by: Evgeny Boger <boger@wirenboard.com> >> Acked-by: Maxime Ripard <maxime@cerno.tech> > +Cc linux-iio@vger.kernel.org > > I'm fine with this and assuming Lee is happy to pick it up + send > me an immutable branch in case anything crosses with it this cycle.. > > Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Hi Jonathan! Is there anything else I should do to make this patch series accepted? > Thanks, > > Jonathan > >> Maxime >> ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [PATCH 1/3] iio: adc: sun4i-gpadc-iio: no temp sensor on R40 2022-01-11 13:13 ` Evgeny Boger @ 2022-01-15 15:41 ` Jonathan Cameron 0 siblings, 0 replies; 11+ messages in thread From: Jonathan Cameron @ 2022-01-15 15:41 UTC (permalink / raw) To: Evgeny Boger Cc: Jonathan Cameron, Maxime Ripard, Chen-Yu Tsai, linux-sunxi, Lee Jones, Rob Herring, devicetree, Jernej Skrabec, linux-arm-kernel, linux-iio On Tue, 11 Jan 2022 16:13:02 +0300 Evgeny Boger <boger@wirenboard.com> wrote: > 22.11.2021 15:41, Jonathan Cameron пишет: > > On Mon, 22 Nov 2021 10:11:32 +0100 > > Maxime Ripard <maxime@cerno.tech> wrote: > > > >> On Fri, Nov 19, 2021 at 10:14:54PM +0300, Evgeny Boger wrote: > >>> R40 SoC has touchscreen controller also serving as general-purpose ADC. > >>> The hardware is very similar to A31, except that R40 has separate > >>> calibrated thermal sensor IP (handled by sun8i_thermal). > >>> > >>> Despite the temperature sensor in the RTP is never mentioned in > >>> the R40 family user manuals, it appears to be working. However, > >>> it's not very useful as it lacks calibration data and there is another > >>> fully functioning temperature sensor anyway. > >>> > >>> This patch disables the temperature sensor in RTP/GPADC IP on R40. > >>> > >>> The reason for disabling the temperature sensor is that the IP > >>> needs to be switched back and forth between RTP and GPADC modes for > >>> temperature measurements. Not only this introduces delays, but it also > >>> disturbs external circuitry by injecting current into ADC inputs. > >>> > >>> Signed-off-by: Evgeny Boger <boger@wirenboard.com> > >> Acked-by: Maxime Ripard <maxime@cerno.tech> > > +Cc linux-iio@vger.kernel.org > > > > I'm fine with this and assuming Lee is happy to pick it up + send > > me an immutable branch in case anything crosses with it this cycle.. > > > > Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> > > Hi Jonathan! > > Is there anything else I should do to make this patch series accepted? Perhaps try a resend to Lee Jones, making sure to cc linux-iio Chances are it just got missed in the deluge! Jonathan > > > > Thanks, > > > > Jonathan > > > >> Maxime > >> > ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [PATCH 1/3] iio: adc: sun4i-gpadc-iio: no temp sensor on R40 2021-11-19 19:14 ` [PATCH 1/3] iio: adc: sun4i-gpadc-iio: no temp sensor on R40 Evgeny Boger 2021-11-22 9:11 ` Maxime Ripard @ 2022-01-17 9:00 ` Lee Jones 1 sibling, 0 replies; 11+ messages in thread From: Lee Jones @ 2022-01-17 9:00 UTC (permalink / raw) To: Evgeny Boger Cc: Chen-Yu Tsai, linux-sunxi, Maxime Ripard, Rob Herring, devicetree, Jernej Skrabec, linux-arm-kernel On Fri, 19 Nov 2021, Evgeny Boger wrote: > R40 SoC has touchscreen controller also serving as general-purpose ADC. > The hardware is very similar to A31, except that R40 has separate > calibrated thermal sensor IP (handled by sun8i_thermal). > > Despite the temperature sensor in the RTP is never mentioned in > the R40 family user manuals, it appears to be working. However, > it's not very useful as it lacks calibration data and there is another > fully functioning temperature sensor anyway. > > This patch disables the temperature sensor in RTP/GPADC IP on R40. > > The reason for disabling the temperature sensor is that the IP > needs to be switched back and forth between RTP and GPADC modes for > temperature measurements. Not only this introduces delays, but it also > disturbs external circuitry by injecting current into ADC inputs. > > Signed-off-by: Evgeny Boger <boger@wirenboard.com> > --- > drivers/iio/adc/sun4i-gpadc-iio.c | 32 +++++++++++++++++++++++-------- > drivers/mfd/sun4i-gpadc.c | 17 ++++++++++++++++ Please split these out. They don't *need* to go in via a single tree. > 2 files changed, 41 insertions(+), 8 deletions(-) -- Lee Jones [李琼斯] Principal Technical Lead - Developer Services Linaro.org │ Open source software for Arm SoCs Follow Linaro: Facebook | Twitter | Blog ^ permalink raw reply [flat|nested] 11+ messages in thread
* [PATCH 2/3] dt-bindings: iio: adc: new compatible for Allwinner R40 RTP controller 2021-11-19 19:14 [PATCH 0/3] Enable RTP (GPADC) controller on Allwinner R40 Evgeny Boger 2021-11-19 19:14 ` [PATCH 1/3] iio: adc: sun4i-gpadc-iio: no temp sensor on R40 Evgeny Boger @ 2021-11-19 19:14 ` Evgeny Boger 2021-11-22 9:10 ` Maxime Ripard 2021-11-30 1:46 ` Rob Herring 2021-11-19 19:14 ` [PATCH 3/3] ARM: dts: sun8i: r40: add rtp node Evgeny Boger 2 siblings, 2 replies; 11+ messages in thread From: Evgeny Boger @ 2021-11-19 19:14 UTC (permalink / raw) To: Chen-Yu Tsai, linux-sunxi, Maxime Ripard Cc: Evgeny Boger, Lee Jones, Rob Herring, devicetree, Jernej Skrabec, linux-arm-kernel R40 SoC has touchscreen controller also serving as general-purpose ADC. The hardware is very similar to A31, except that R40 has separate calibrated thermal sensor IP, so temperature sensing channel in RTP is not documented and is not to be used. Signed-off-by: Evgeny Boger <boger@wirenboard.com> --- .../devicetree/bindings/mfd/allwinner,sun4i-a10-ts.yaml | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/mfd/allwinner,sun4i-a10-ts.yaml b/Documentation/devicetree/bindings/mfd/allwinner,sun4i-a10-ts.yaml index f591332fc462..6214477465b8 100644 --- a/Documentation/devicetree/bindings/mfd/allwinner,sun4i-a10-ts.yaml +++ b/Documentation/devicetree/bindings/mfd/allwinner,sun4i-a10-ts.yaml @@ -19,6 +19,7 @@ properties: - allwinner,sun4i-a10-ts - allwinner,sun5i-a13-ts - allwinner,sun6i-a31-ts + - allwinner,sun8i-r40-ts reg: maxItems: 1 -- 2.25.1 ^ permalink raw reply related [flat|nested] 11+ messages in thread
* Re: [PATCH 2/3] dt-bindings: iio: adc: new compatible for Allwinner R40 RTP controller 2021-11-19 19:14 ` [PATCH 2/3] dt-bindings: iio: adc: new compatible for Allwinner R40 RTP controller Evgeny Boger @ 2021-11-22 9:10 ` Maxime Ripard 2021-11-30 1:46 ` Rob Herring 1 sibling, 0 replies; 11+ messages in thread From: Maxime Ripard @ 2021-11-22 9:10 UTC (permalink / raw) To: Evgeny Boger Cc: Chen-Yu Tsai, linux-sunxi, Lee Jones, Rob Herring, devicetree, Jernej Skrabec, linux-arm-kernel [-- Attachment #1: Type: text/plain, Size: 437 bytes --] On Fri, Nov 19, 2021 at 10:14:55PM +0300, Evgeny Boger wrote: > R40 SoC has touchscreen controller also serving as general-purpose ADC. > The hardware is very similar to A31, except that R40 has separate > calibrated thermal sensor IP, so temperature sensing channel in RTP is > not documented and is not to be used. > > Signed-off-by: Evgeny Boger <boger@wirenboard.com> Acked-by: Maxime Ripard <maxime@cerno.tech> Maxime [-- Attachment #2: signature.asc --] [-- Type: application/pgp-signature, Size: 228 bytes --] ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [PATCH 2/3] dt-bindings: iio: adc: new compatible for Allwinner R40 RTP controller 2021-11-19 19:14 ` [PATCH 2/3] dt-bindings: iio: adc: new compatible for Allwinner R40 RTP controller Evgeny Boger 2021-11-22 9:10 ` Maxime Ripard @ 2021-11-30 1:46 ` Rob Herring 1 sibling, 0 replies; 11+ messages in thread From: Rob Herring @ 2021-11-30 1:46 UTC (permalink / raw) To: Evgeny Boger Cc: Chen-Yu Tsai, linux-sunxi, linux-arm-kernel, Maxime Ripard, devicetree, Rob Herring, Jernej Skrabec, Lee Jones On Fri, 19 Nov 2021 22:14:55 +0300, Evgeny Boger wrote: > R40 SoC has touchscreen controller also serving as general-purpose ADC. > The hardware is very similar to A31, except that R40 has separate > calibrated thermal sensor IP, so temperature sensing channel in RTP is > not documented and is not to be used. > > Signed-off-by: Evgeny Boger <boger@wirenboard.com> > --- > .../devicetree/bindings/mfd/allwinner,sun4i-a10-ts.yaml | 1 + > 1 file changed, 1 insertion(+) > Acked-by: Rob Herring <robh@kernel.org> ^ permalink raw reply [flat|nested] 11+ messages in thread
* [PATCH 3/3] ARM: dts: sun8i: r40: add rtp node 2021-11-19 19:14 [PATCH 0/3] Enable RTP (GPADC) controller on Allwinner R40 Evgeny Boger 2021-11-19 19:14 ` [PATCH 1/3] iio: adc: sun4i-gpadc-iio: no temp sensor on R40 Evgeny Boger 2021-11-19 19:14 ` [PATCH 2/3] dt-bindings: iio: adc: new compatible for Allwinner R40 RTP controller Evgeny Boger @ 2021-11-19 19:14 ` Evgeny Boger 2 siblings, 0 replies; 11+ messages in thread From: Evgeny Boger @ 2021-11-19 19:14 UTC (permalink / raw) To: Chen-Yu Tsai, linux-sunxi, Maxime Ripard Cc: Evgeny Boger, Lee Jones, Rob Herring, devicetree, Jernej Skrabec, linux-arm-kernel R40 SoC has touchscreen controller also serving as general-purpose ADC. The hardware is very similar to A31, except that R40 has separate calibrated thermal sensor IP, so temperature sensing channel in RTP is not documented and is not to be used. Signed-off-by: Evgeny Boger <boger@wirenboard.com> --- arch/arm/boot/dts/sun8i-r40.dtsi | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/arm/boot/dts/sun8i-r40.dtsi b/arch/arm/boot/dts/sun8i-r40.dtsi index 1d87fc0c24ee..3e98f24c1400 100644 --- a/arch/arm/boot/dts/sun8i-r40.dtsi +++ b/arch/arm/boot/dts/sun8i-r40.dtsi @@ -786,6 +786,14 @@ ths: thermal-sensor@1c24c00 { #thermal-sensor-cells = <1>; }; + rtp: rtp@1c25000 { + compatible = "allwinner,sun8i-r40-ts", + "allwinner,sun6i-a31-ts"; + reg = <0x01c25000 0x100>; + interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>; + #thermal-sensor-cells = <0>; + }; + uart0: serial@1c28000 { compatible = "snps,dw-apb-uart"; reg = <0x01c28000 0x400>; -- 2.25.1 ^ permalink raw reply related [flat|nested] 11+ messages in thread
end of thread, other threads:[~2022-01-17 9:00 UTC | newest] Thread overview: 11+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2021-11-19 19:14 [PATCH 0/3] Enable RTP (GPADC) controller on Allwinner R40 Evgeny Boger 2021-11-19 19:14 ` [PATCH 1/3] iio: adc: sun4i-gpadc-iio: no temp sensor on R40 Evgeny Boger 2021-11-22 9:11 ` Maxime Ripard 2021-11-22 12:41 ` Jonathan Cameron 2022-01-11 13:13 ` Evgeny Boger 2022-01-15 15:41 ` Jonathan Cameron 2022-01-17 9:00 ` Lee Jones 2021-11-19 19:14 ` [PATCH 2/3] dt-bindings: iio: adc: new compatible for Allwinner R40 RTP controller Evgeny Boger 2021-11-22 9:10 ` Maxime Ripard 2021-11-30 1:46 ` Rob Herring 2021-11-19 19:14 ` [PATCH 3/3] ARM: dts: sun8i: r40: add rtp node Evgeny Boger
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