[PATCH] input: rmi_spi: Add missing entries SPI to device ID table

[PATCH] input: rmi_spi: Add missing entries SPI to device ID table

[Mark Brown]

Currently autoloading for SPI devices does not use the DT ID table, it uses
SPI modalises. Supporting OF modalises is going to be difficult if not
impractical, an attempt was made but has been reverted, so ensure that
module autoloading works for this driver by adding SPI IDs for parts that
only have a compatible listed.

Fixes: 96c8395e2166 ("spi: Revert modalias changes")
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 drivers/input/rmi4/rmi_spi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/input/rmi4/rmi_spi.c b/drivers/input/rmi4/rmi_spi.c
index c82edda66b23..1dccb8dd8919 100644
--- a/drivers/input/rmi4/rmi_spi.c
+++ b/drivers/input/rmi4/rmi_spi.c
@@ -511,6 +511,7 @@ static const struct dev_pm_ops rmi_spi_pm = {
 
 static const struct spi_device_id rmi_id[] = {
 	{ "rmi4_spi", 0 },
+	{ "rmi4-spi", 0 },
 	{ }
 };
 MODULE_DEVICE_TABLE(spi, rmi_id);
-- 
2.20.1

Re: [PATCH] input: rmi_spi: Add missing entries SPI to device ID table

[Dmitry Torokhov]

Hi Mark,

On Mon, Sep 27, 2021 at 02:40:00PM +0100, Mark Brown wrote:
> Currently autoloading for SPI devices does not use the DT ID table, it uses
> SPI modalises. Supporting OF modalises is going to be difficult if not
> impractical, an attempt was made but has been reverted, so ensure that
> module autoloading works for this driver by adding SPI IDs for parts that
> only have a compatible listed.
> 
> Fixes: 96c8395e2166 ("spi: Revert modalias changes")
> Signed-off-by: Mark Brown <broonie@kernel.org>
> ---
>  drivers/input/rmi4/rmi_spi.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/input/rmi4/rmi_spi.c b/drivers/input/rmi4/rmi_spi.c
> index c82edda66b23..1dccb8dd8919 100644
> --- a/drivers/input/rmi4/rmi_spi.c
> +++ b/drivers/input/rmi4/rmi_spi.c
> @@ -511,6 +511,7 @@ static const struct dev_pm_ops rmi_spi_pm = {
>  
>  static const struct spi_device_id rmi_id[] = {
>  	{ "rmi4_spi", 0 },
> +	{ "rmi4-spi", 0 },

I do not think this is needed as kmod "normalizes" module names and
modalias strings by converting all dashes to underscore before executing
matching.

Thanks.

-- 
Dmitry