From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B31BD199E9F; Thu, 25 Jul 2024 14:42:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721918539; cv=none; b=ORTjq3PEP6DPObk92yIJI5yRhZ1kg7/xoRwHr54rmNzhUZaQLF4BCYWcaIf80XnQoyRVsmwZ2Ye6GGIUe6Suc3zQRK1PaEsf97o/ci08KbMG6JRkRpeSupoUEMVWZOnOyE5X7R/IaCSap9hKBJcBpN3Vxgw3lPplZR6gpFpZaoA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721918539; c=relaxed/simple; bh=6hKUm/45m+I1/lB3c0+YNth86MlUfBdQ4ruIOygwXfU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ax6w+xBP4gq6jvgzmnSZGMm6DpQK77VvA5CwzYQ5VXR70PIS1UEOAmk864RP24aTu7/NTsMhVASqOd2q2zsnJWXGGtk8R9+isE20XdsKLZoDmR/eOo/55tO0W4Fqgiv0jO46k78zxIOvuxBR8kQco3wueDTphQk4tBtYN6owgBM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=iQCGQKTR; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="iQCGQKTR" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3837FC116B1; Thu, 25 Jul 2024 14:42:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1721918539; bh=6hKUm/45m+I1/lB3c0+YNth86MlUfBdQ4ruIOygwXfU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iQCGQKTRRU0uSNimV5C7Pl8We9aAebVNzwwytpiY5/x7BTC5Es8+R+snrMhOVnOLq RKrV/3H2k77eI+oOsdbWs3JORk2E3CoQxZiFWyhUrHNA7tPKwiYc+Cxxj+DkBhU/3V aLtAd1EdewrRwkzGHx7uWoEGbDoopnJ7l4lF1sI8= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Hans de Goede , Dmitry Torokhov , Sasha Levin Subject: [PATCH 5.4 08/43] Input: silead - Always support 10 fingers Date: Thu, 25 Jul 2024 16:36:31 +0200 Message-ID: <20240725142730.789346612@linuxfoundation.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240725142730.471190017@linuxfoundation.org> References: <20240725142730.471190017@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Hans de Goede [ Upstream commit 38a38f5a36da9820680d413972cb733349400532 ] When support for Silead touchscreens was orginal added some touchscreens with older firmware versions only supported 5 fingers and this was made the default requiring the setting of a "silead,max-fingers=10" uint32 device-property for all touchscreen models which do support 10 fingers. There are very few models with the old 5 finger fw, so in practice the setting of the "silead,max-fingers=10" is boilerplate which needs to be copy and pasted to every touchscreen config. Reporting that 10 fingers are supported on devices which only support 5 fingers doesn't cause any problems for userspace in practice, since at max 4 finger gestures are supported anyways. Drop the max_fingers configuration and simply always assume 10 fingers. Signed-off-by: Hans de Goede Acked-by: Dmitry Torokhov Link: https://lore.kernel.org/r/20240525193854.39130-2-hdegoede@redhat.com Signed-off-by: Sasha Levin --- drivers/input/touchscreen/silead.c | 19 +++++-------------- 1 file changed, 5 insertions(+), 14 deletions(-) diff --git a/drivers/input/touchscreen/silead.c b/drivers/input/touchscreen/silead.c index c8776146f1d1b..467feacdbd7a2 100644 --- a/drivers/input/touchscreen/silead.c +++ b/drivers/input/touchscreen/silead.c @@ -70,7 +70,6 @@ struct silead_ts_data { struct regulator_bulk_data regulators[2]; char fw_name[64]; struct touchscreen_properties prop; - u32 max_fingers; u32 chip_id; struct input_mt_pos pos[SILEAD_MAX_FINGERS]; int slots[SILEAD_MAX_FINGERS]; @@ -98,7 +97,7 @@ static int silead_ts_request_input_dev(struct silead_ts_data *data) input_set_abs_params(data->input, ABS_MT_POSITION_Y, 0, 4095, 0, 0); touchscreen_parse_properties(data->input, true, &data->prop); - input_mt_init_slots(data->input, data->max_fingers, + input_mt_init_slots(data->input, SILEAD_MAX_FINGERS, INPUT_MT_DIRECT | INPUT_MT_DROP_UNUSED | INPUT_MT_TRACK); @@ -145,10 +144,10 @@ static void silead_ts_read_data(struct i2c_client *client) return; } - if (buf[0] > data->max_fingers) { + if (buf[0] > SILEAD_MAX_FINGERS) { dev_warn(dev, "More touches reported then supported %d > %d\n", - buf[0], data->max_fingers); - buf[0] = data->max_fingers; + buf[0], SILEAD_MAX_FINGERS); + buf[0] = SILEAD_MAX_FINGERS; } touch_nr = 0; @@ -200,7 +199,6 @@ static void silead_ts_read_data(struct i2c_client *client) static int silead_ts_init(struct i2c_client *client) { - struct silead_ts_data *data = i2c_get_clientdata(client); int error; error = i2c_smbus_write_byte_data(client, SILEAD_REG_RESET, @@ -210,7 +208,7 @@ static int silead_ts_init(struct i2c_client *client) usleep_range(SILEAD_CMD_SLEEP_MIN, SILEAD_CMD_SLEEP_MAX); error = i2c_smbus_write_byte_data(client, SILEAD_REG_TOUCH_NR, - data->max_fingers); + SILEAD_MAX_FINGERS); if (error) goto i2c_write_err; usleep_range(SILEAD_CMD_SLEEP_MIN, SILEAD_CMD_SLEEP_MAX); @@ -437,13 +435,6 @@ static void silead_ts_read_props(struct i2c_client *client) const char *str; int error; - error = device_property_read_u32(dev, "silead,max-fingers", - &data->max_fingers); - if (error) { - dev_dbg(dev, "Max fingers read error %d\n", error); - data->max_fingers = 5; /* Most devices handle up-to 5 fingers */ - } - error = device_property_read_string(dev, "firmware-name", &str); if (!error) snprintf(data->fw_name, sizeof(data->fw_name), -- 2.43.0