2019-11-21 09:11:13

by Agrawal, Akshu

[permalink] [raw]
Subject: [PATCH] i2c: i2c-cros-ec-tunnel: Fix slave device enumeration

During adding of the adapter the slave device registration
use to fail as the acpi companion field was not populated.

Signed-off-by: Akshu Agrawal <[email protected]>
---
drivers/i2c/busses/i2c-cros-ec-tunnel.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/i2c/busses/i2c-cros-ec-tunnel.c b/drivers/i2c/busses/i2c-cros-ec-tunnel.c
index c551aa96a2e3..aca8070393bd 100644
--- a/drivers/i2c/busses/i2c-cros-ec-tunnel.c
+++ b/drivers/i2c/busses/i2c-cros-ec-tunnel.c
@@ -273,6 +273,7 @@ static int ec_i2c_probe(struct platform_device *pdev)
bus->adap.dev.parent = &pdev->dev;
bus->adap.dev.of_node = np;
bus->adap.retries = I2C_MAX_RETRIES;
+ ACPI_COMPANION_SET(&bus->adap.dev, ACPI_COMPANION(&pdev->dev));

err = i2c_add_adapter(&bus->adap);
if (err)
--
2.17.1


2019-11-25 15:34:42

by Enric Balletbo i Serra

[permalink] [raw]
Subject: Re: [PATCH] i2c: i2c-cros-ec-tunnel: Fix slave device enumeration

Hi Akshu,

On 21/11/19 10:06, Akshu Agrawal wrote:
> During adding of the adapter the slave device registration
> use to fail as the acpi companion field was not populated.
>

I am wondering if this a fix that needs to picked on stable kernels? Which
chrome platform are you using?

Thanks,
Enric

> Signed-off-by: Akshu Agrawal <[email protected]>
> ---
> drivers/i2c/busses/i2c-cros-ec-tunnel.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/i2c/busses/i2c-cros-ec-tunnel.c b/drivers/i2c/busses/i2c-cros-ec-tunnel.c
> index c551aa96a2e3..aca8070393bd 100644
> --- a/drivers/i2c/busses/i2c-cros-ec-tunnel.c
> +++ b/drivers/i2c/busses/i2c-cros-ec-tunnel.c
> @@ -273,6 +273,7 @@ static int ec_i2c_probe(struct platform_device *pdev)
> bus->adap.dev.parent = &pdev->dev;
> bus->adap.dev.of_node = np;
> bus->adap.retries = I2C_MAX_RETRIES;
> + ACPI_COMPANION_SET(&bus->adap.dev, ACPI_COMPANION(&pdev->dev));
>
> err = i2c_add_adapter(&bus->adap);
> if (err)
>

2019-11-25 18:54:54

by Raul Rangel

[permalink] [raw]
Subject: Re: [PATCH] i2c: i2c-cros-ec-tunnel: Fix slave device enumeration

On Mon, Nov 25, 2019 at 8:32 AM Enric Balletbo i Serra
<[email protected]> wrote:
>
> Hi Akshu,
>
> On 21/11/19 10:06, Akshu Agrawal wrote:
> > During adding of the adapter the slave device registration
> > use to fail as the acpi companion field was not populated.
> >
>
> I am wondering if this a fix that needs to picked on stable kernels? Which
> chrome platform are you using?
>
It's a fixup of https://lore.kernel.org/patchwork/patch/1151436/ so
unless that patch has been ported to stable kernels, I wouldn't worry
about it.

2019-11-25 18:56:58

by Raul Rangel

[permalink] [raw]
Subject: Re: [PATCH] i2c: i2c-cros-ec-tunnel: Fix slave device enumeration

On Thu, Nov 21, 2019 at 2:06 AM Akshu Agrawal <[email protected]> wrote:
>
> During adding of the adapter the slave device registration
> use to fail as the acpi companion field was not populated.
>
> Signed-off-by: Akshu Agrawal <[email protected]>
> ---
> drivers/i2c/busses/i2c-cros-ec-tunnel.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/i2c/busses/i2c-cros-ec-tunnel.c b/drivers/i2c/busses/i2c-cros-ec-tunnel.c
> index c551aa96a2e3..aca8070393bd 100644
> --- a/drivers/i2c/busses/i2c-cros-ec-tunnel.c
> +++ b/drivers/i2c/busses/i2c-cros-ec-tunnel.c
> @@ -273,6 +273,7 @@ static int ec_i2c_probe(struct platform_device *pdev)
> bus->adap.dev.parent = &pdev->dev;
> bus->adap.dev.of_node = np;
> bus->adap.retries = I2C_MAX_RETRIES;
> + ACPI_COMPANION_SET(&bus->adap.dev, ACPI_COMPANION(&pdev->dev));
>
> err = i2c_add_adapter(&bus->adap);
> if (err)
> --
> 2.17.1
>

Acked-by: Raul E Rangel <[email protected]>

2019-11-26 10:27:34

by Enric Balletbo i Serra

[permalink] [raw]
Subject: Re: [PATCH] i2c: i2c-cros-ec-tunnel: Fix slave device enumeration

Hi,

On 21/11/19 10:06, Akshu Agrawal wrote:
> During adding of the adapter the slave device registration
> use to fail as the acpi companion field was not populated.
>
> Signed-off-by: Akshu Agrawal <[email protected]>

Looks good to me.

Reviewed-by: Enric Balletbo i Serra <[email protected]>

> ---
> drivers/i2c/busses/i2c-cros-ec-tunnel.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/i2c/busses/i2c-cros-ec-tunnel.c b/drivers/i2c/busses/i2c-cros-ec-tunnel.c
> index c551aa96a2e3..aca8070393bd 100644
> --- a/drivers/i2c/busses/i2c-cros-ec-tunnel.c
> +++ b/drivers/i2c/busses/i2c-cros-ec-tunnel.c
> @@ -273,6 +273,7 @@ static int ec_i2c_probe(struct platform_device *pdev)
> bus->adap.dev.parent = &pdev->dev;
> bus->adap.dev.of_node = np;
> bus->adap.retries = I2C_MAX_RETRIES;
> + ACPI_COMPANION_SET(&bus->adap.dev, ACPI_COMPANION(&pdev->dev));
>
> err = i2c_add_adapter(&bus->adap);
> if (err)
>

2020-01-31 07:46:43

by Wolfram Sang

[permalink] [raw]
Subject: Re: [PATCH] i2c: i2c-cros-ec-tunnel: Fix slave device enumeration

On Thu, Nov 21, 2019 at 02:36:17PM +0530, Akshu Agrawal wrote:
> During adding of the adapter the slave device registration
> use to fail as the acpi companion field was not populated.
>
> Signed-off-by: Akshu Agrawal <[email protected]>

Applied to for-next (v5.6) with Fixes tag added, thanks!


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