linux-kernel - Re: [PATCH v3 5/5] input/touchscreen: imagis: add support for IST3032C

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Date:   Mon, 4 Dec 2023 14:45:08 +0200
From:   Markuss Broks <markuss.broks@...il.com>
To:     Karel Balej <karelb@...li.ms.mff.cuni.cz>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Henrik Rydberg <rydberg@...math.org>,
        linux-input@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Duje Mihanović <duje.mihanovic@...le.hr>,
        ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
        Karel Balej <balejk@...fyz.cz>
Subject: Re: [PATCH v3 5/5] input/touchscreen: imagis: add support for
 IST3032C

Hi Karel,

On 12/2/23 14:48, Karel Balej wrote:
> From: Karel Balej <balejk@...fyz.cz>
>
> IST3032C is a touchscreen chip used for instance in the
> samsung,coreprimevelte smartphone, with which this was tested. Add the
> chip specific information to the driver.
>
> Signed-off-by: Karel Balej <balejk@...fyz.cz>
> ---
>   drivers/input/touchscreen/imagis.c | 10 ++++++++++
>   1 file changed, 10 insertions(+)
>
> diff --git a/drivers/input/touchscreen/imagis.c b/drivers/input/touchscreen/imagis.c
> index 84a02672ac47..41f28e6e9cb1 100644
> --- a/drivers/input/touchscreen/imagis.c
> +++ b/drivers/input/touchscreen/imagis.c
> @@ -35,6 +35,8 @@
>   #define IST3038B_REG_CHIPID		0x30
>   #define IST3038B_WHOAMI			0x30380b
>   
> +#define IST3032C_WHOAMI			0x32c
> +
Perhaps it should be ordered in alphabetic/alphanumeric order, 
alternatively, the chip ID values could be grouped.
>   struct imagis_properties {
>   	unsigned int interrupt_msg_cmd;
>   	unsigned int touch_coord_cmd;
> @@ -363,6 +365,13 @@ static int imagis_resume(struct device *dev)
>   
>   static DEFINE_SIMPLE_DEV_PM_OPS(imagis_pm_ops, imagis_suspend, imagis_resume);
>   
> +static const struct imagis_properties imagis_3032c_data = {
> +	.interrupt_msg_cmd = IST3038C_REG_INTR_MESSAGE,
> +	.touch_coord_cmd = IST3038C_REG_TOUCH_COORD,
> +	.whoami_cmd = IST3038C_REG_CHIPID,
> +	.whoami_val = IST3032C_WHOAMI,
> +};
> +
>   static const struct imagis_properties imagis_3038b_data = {
>   	.interrupt_msg_cmd = IST3038B_REG_STATUS,
>   	.touch_coord_cmd = IST3038B_REG_STATUS,
> @@ -380,6 +389,7 @@ static const struct imagis_properties imagis_3038c_data = {
>   
>   #ifdef CONFIG_OF
>   static const struct of_device_id imagis_of_match[] = {
> +	{ .compatible = "imagis,ist3032c", .data = &imagis_3032c_data },
>   	{ .compatible = "imagis,ist3038b", .data = &imagis_3038b_data },
>   	{ .compatible = "imagis,ist3038c", .data = &imagis_3038c_data },
>   	{ },

Other than that,

Reviewed-by: Markuss Broks <markuss.broks@...il.com>

- Markuss