From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C5C94C71155 for ; Sat, 28 Nov 2020 22:29:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 89FED221FF for ; Sat, 28 Nov 2020 22:29:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387842AbgK1W3T (ORCPT ); Sat, 28 Nov 2020 17:29:19 -0500 Received: from relay9-d.mail.gandi.net ([217.70.183.199]:55023 "EHLO relay9-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387625AbgK1W3S (ORCPT ); Sat, 28 Nov 2020 17:29:18 -0500 X-Originating-IP: 86.194.74.19 Received: from localhost (lfbn-lyo-1-997-19.w86-194.abo.wanadoo.fr [86.194.74.19]) (Authenticated sender: alexandre.belloni@bootlin.com) by relay9-d.mail.gandi.net (Postfix) with ESMTPSA id BEFF4FF805; Sat, 28 Nov 2020 22:28:33 +0000 (UTC) From: Alexandre Belloni To: Jonathan Cameron Cc: Lars-Peter Clausen , Peter Meerwald-Stadler , Nicolas Ferre , Ludovic Desroches , linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Alexandre Belloni Subject: [PATCH v3 05/10] iio: adc: at91_adc: rework trigger definition Date: Sat, 28 Nov 2020 23:28:13 +0100 Message-Id: <20201128222818.1910764-6-alexandre.belloni@bootlin.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201128222818.1910764-1-alexandre.belloni@bootlin.com> References: <20201128222818.1910764-1-alexandre.belloni@bootlin.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Move the available trigger definition back in the driver to stop cluttering the device tree. There is no functional change except that it actually fixes the available triggers for at91sam9rl as it inherited the list from at91sam9260 but actually has the triggers from at91sam9x5. Signed-off-by: Alexandre Belloni Reviewed-by: Ludovic Desroches --- drivers/iio/adc/at91_adc.c | 80 +++++++++++++++++--------------------- 1 file changed, 36 insertions(+), 44 deletions(-) diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c index 171288a4ab9a..d746a18143cd 100644 --- a/drivers/iio/adc/at91_adc.c +++ b/drivers/iio/adc/at91_adc.c @@ -207,6 +207,8 @@ struct at91_adc_caps { u8 low_res_bits; u8 high_res_bits; + u32 trigger_number; + const struct at91_adc_trigger *triggers; struct at91_adc_reg_desc registers; }; @@ -227,8 +229,6 @@ struct at91_adc_state { u8 sample_hold_time; bool sleep_mode; struct iio_trigger **trig; - struct at91_adc_trigger *trigger_list; - u32 trigger_number; bool use_external; u32 vref_mv; u32 res; /* resolution used for convertions */ @@ -537,13 +537,13 @@ static int at91_adc_channel_init(struct iio_dev *idev) } static int at91_adc_get_trigger_value_by_name(struct iio_dev *idev, - struct at91_adc_trigger *triggers, + const struct at91_adc_trigger *triggers, const char *trigger_name) { struct at91_adc_state *st = iio_priv(idev); int i; - for (i = 0; i < st->trigger_number; i++) { + for (i = 0; i < st->caps->trigger_number; i++) { char *name = kasprintf(GFP_KERNEL, "%s-dev%d-%s", idev->name, @@ -575,7 +575,7 @@ static int at91_adc_configure_trigger(struct iio_trigger *trig, bool state) u8 bit; value = at91_adc_get_trigger_value_by_name(idev, - st->trigger_list, + st->caps->triggers, idev->trig->name); if (value < 0) return value; @@ -620,7 +620,7 @@ static const struct iio_trigger_ops at91_adc_trigger_ops = { }; static struct iio_trigger *at91_adc_allocate_trigger(struct iio_dev *idev, - struct at91_adc_trigger *trigger) + const struct at91_adc_trigger *trigger) { struct iio_trigger *trig; int ret; @@ -647,7 +647,7 @@ static int at91_adc_trigger_init(struct iio_dev *idev) int i, ret; st->trig = devm_kcalloc(&idev->dev, - st->trigger_number, sizeof(*st->trig), + st->caps->trigger_number, sizeof(*st->trig), GFP_KERNEL); if (st->trig == NULL) { @@ -655,12 +655,12 @@ static int at91_adc_trigger_init(struct iio_dev *idev) goto error_ret; } - for (i = 0; i < st->trigger_number; i++) { - if (st->trigger_list[i].is_external && !(st->use_external)) + for (i = 0; i < st->caps->trigger_number; i++) { + if (st->caps->triggers[i].is_external && !(st->use_external)) continue; st->trig[i] = at91_adc_allocate_trigger(idev, - st->trigger_list + i); + st->caps->triggers + i); if (st->trig[i] == NULL) { dev_err(&idev->dev, "Could not allocate trigger %d\n", i); @@ -685,7 +685,7 @@ static void at91_adc_trigger_remove(struct iio_dev *idev) struct at91_adc_state *st = iio_priv(idev); int i; - for (i = 0; i < st->trigger_number; i++) { + for (i = 0; i < st->caps->trigger_number; i++) { iio_trigger_unregister(st->trig[i]); iio_trigger_free(st->trig[i]); } @@ -836,8 +836,7 @@ static int at91_adc_probe_dt(struct iio_dev *idev, { struct at91_adc_state *st = iio_priv(idev); struct device_node *node = pdev->dev.of_node; - struct device_node *trig_node; - int i = 0, ret; + int ret; u32 prop; char *s; @@ -882,37 +881,6 @@ static int at91_adc_probe_dt(struct iio_dev *idev, st->registers = &st->caps->registers; st->num_channels = st->caps->num_channels; - st->trigger_number = of_get_child_count(node); - st->trigger_list = devm_kcalloc(&idev->dev, - st->trigger_number, - sizeof(struct at91_adc_trigger), - GFP_KERNEL); - if (!st->trigger_list) { - dev_err(&idev->dev, "Could not allocate trigger list memory.\n"); - ret = -ENOMEM; - goto error_ret; - } - - for_each_child_of_node(node, trig_node) { - struct at91_adc_trigger *trig = st->trigger_list + i; - const char *name; - - if (of_property_read_string(trig_node, "trigger-name", &name)) { - dev_err(&idev->dev, "Missing trigger-name property in the DT.\n"); - ret = -EINVAL; - goto error_ret; - } - trig->name = name; - - if (of_property_read_u32(trig_node, "trigger-value", &prop)) { - dev_err(&idev->dev, "Missing trigger-value property in the DT.\n"); - ret = -EINVAL; - goto error_ret; - } - trig->value = prop; - trig->is_external = of_property_read_bool(trig_node, "trigger-external"); - i++; - } /* Check if touchscreen is supported. */ if (st->caps->has_ts) @@ -1312,6 +1280,13 @@ static int at91_adc_resume(struct device *dev) static SIMPLE_DEV_PM_OPS(at91_adc_pm_ops, at91_adc_suspend, at91_adc_resume); +static const struct at91_adc_trigger at91sam9260_triggers[] = { + { .name = "timer-counter-0", .value = 0x1 }, + { .name = "timer-counter-1", .value = 0x3 }, + { .name = "timer-counter-2", .value = 0x5 }, + { .name = "external", .value = 0xd, .is_external = true }, +}; + static struct at91_adc_caps at91sam9260_caps = { .calc_startup_ticks = calc_startup_ticks_9260, .num_channels = 4, @@ -1325,6 +1300,15 @@ static struct at91_adc_caps at91sam9260_caps = { .mr_prescal_mask = AT91_ADC_PRESCAL_9260, .mr_startup_mask = AT91_ADC_STARTUP_9260, }, + .triggers = at91sam9260_triggers, + .trigger_number = ARRAY_SIZE(at91sam9260_triggers), +}; + +static const struct at91_adc_trigger at91sam9x5_triggers[] = { + { .name = "external-rising", .value = 0x1, .is_external = true }, + { .name = "external-falling", .value = 0x2, .is_external = true }, + { .name = "external-any", .value = 0x3, .is_external = true }, + { .name = "continuous", .value = 0x6 }, }; static struct at91_adc_caps at91sam9rl_caps = { @@ -1341,6 +1325,8 @@ static struct at91_adc_caps at91sam9rl_caps = { .mr_prescal_mask = AT91_ADC_PRESCAL_9260, .mr_startup_mask = AT91_ADC_STARTUP_9G45, }, + .triggers = at91sam9x5_triggers, + .trigger_number = ARRAY_SIZE(at91sam9x5_triggers), }; static struct at91_adc_caps at91sam9g45_caps = { @@ -1357,6 +1343,8 @@ static struct at91_adc_caps at91sam9g45_caps = { .mr_prescal_mask = AT91_ADC_PRESCAL_9G45, .mr_startup_mask = AT91_ADC_STARTUP_9G45, }, + .triggers = at91sam9x5_triggers, + .trigger_number = ARRAY_SIZE(at91sam9x5_triggers), }; static struct at91_adc_caps at91sam9x5_caps = { @@ -1377,6 +1365,8 @@ static struct at91_adc_caps at91sam9x5_caps = { .mr_prescal_mask = AT91_ADC_PRESCAL_9G45, .mr_startup_mask = AT91_ADC_STARTUP_9X5, }, + .triggers = at91sam9x5_triggers, + .trigger_number = ARRAY_SIZE(at91sam9x5_triggers), }; static struct at91_adc_caps sama5d3_caps = { @@ -1396,6 +1386,8 @@ static struct at91_adc_caps sama5d3_caps = { .mr_prescal_mask = AT91_ADC_PRESCAL_9G45, .mr_startup_mask = AT91_ADC_STARTUP_9X5, }, + .triggers = at91sam9x5_triggers, + .trigger_number = ARRAY_SIZE(at91sam9x5_triggers), }; static const struct of_device_id at91_adc_dt_ids[] = { -- 2.28.0 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9B288C63798 for ; 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Sat, 28 Nov 2020 22:28:33 +0000 (UTC) From: Alexandre Belloni To: Jonathan Cameron Subject: [PATCH v3 05/10] iio: adc: at91_adc: rework trigger definition Date: Sat, 28 Nov 2020 23:28:13 +0100 Message-Id: <20201128222818.1910764-6-alexandre.belloni@bootlin.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201128222818.1910764-1-alexandre.belloni@bootlin.com> References: <20201128222818.1910764-1-alexandre.belloni@bootlin.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201128_172839_894230_A1402EB1 X-CRM114-Status: GOOD ( 20.84 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Alexandre Belloni , Lars-Peter Clausen , linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, Ludovic Desroches , Peter Meerwald-Stadler , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Move the available trigger definition back in the driver to stop cluttering the device tree. There is no functional change except that it actually fixes the available triggers for at91sam9rl as it inherited the list from at91sam9260 but actually has the triggers from at91sam9x5. Signed-off-by: Alexandre Belloni Reviewed-by: Ludovic Desroches --- drivers/iio/adc/at91_adc.c | 80 +++++++++++++++++--------------------- 1 file changed, 36 insertions(+), 44 deletions(-) diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c index 171288a4ab9a..d746a18143cd 100644 --- a/drivers/iio/adc/at91_adc.c +++ b/drivers/iio/adc/at91_adc.c @@ -207,6 +207,8 @@ struct at91_adc_caps { u8 low_res_bits; u8 high_res_bits; + u32 trigger_number; + const struct at91_adc_trigger *triggers; struct at91_adc_reg_desc registers; }; @@ -227,8 +229,6 @@ struct at91_adc_state { u8 sample_hold_time; bool sleep_mode; struct iio_trigger **trig; - struct at91_adc_trigger *trigger_list; - u32 trigger_number; bool use_external; u32 vref_mv; u32 res; /* resolution used for convertions */ @@ -537,13 +537,13 @@ static int at91_adc_channel_init(struct iio_dev *idev) } static int at91_adc_get_trigger_value_by_name(struct iio_dev *idev, - struct at91_adc_trigger *triggers, + const struct at91_adc_trigger *triggers, const char *trigger_name) { struct at91_adc_state *st = iio_priv(idev); int i; - for (i = 0; i < st->trigger_number; i++) { + for (i = 0; i < st->caps->trigger_number; i++) { char *name = kasprintf(GFP_KERNEL, "%s-dev%d-%s", idev->name, @@ -575,7 +575,7 @@ static int at91_adc_configure_trigger(struct iio_trigger *trig, bool state) u8 bit; value = at91_adc_get_trigger_value_by_name(idev, - st->trigger_list, + st->caps->triggers, idev->trig->name); if (value < 0) return value; @@ -620,7 +620,7 @@ static const struct iio_trigger_ops at91_adc_trigger_ops = { }; static struct iio_trigger *at91_adc_allocate_trigger(struct iio_dev *idev, - struct at91_adc_trigger *trigger) + const struct at91_adc_trigger *trigger) { struct iio_trigger *trig; int ret; @@ -647,7 +647,7 @@ static int at91_adc_trigger_init(struct iio_dev *idev) int i, ret; st->trig = devm_kcalloc(&idev->dev, - st->trigger_number, sizeof(*st->trig), + st->caps->trigger_number, sizeof(*st->trig), GFP_KERNEL); if (st->trig == NULL) { @@ -655,12 +655,12 @@ static int at91_adc_trigger_init(struct iio_dev *idev) goto error_ret; } - for (i = 0; i < st->trigger_number; i++) { - if (st->trigger_list[i].is_external && !(st->use_external)) + for (i = 0; i < st->caps->trigger_number; i++) { + if (st->caps->triggers[i].is_external && !(st->use_external)) continue; st->trig[i] = at91_adc_allocate_trigger(idev, - st->trigger_list + i); + st->caps->triggers + i); if (st->trig[i] == NULL) { dev_err(&idev->dev, "Could not allocate trigger %d\n", i); @@ -685,7 +685,7 @@ static void at91_adc_trigger_remove(struct iio_dev *idev) struct at91_adc_state *st = iio_priv(idev); int i; - for (i = 0; i < st->trigger_number; i++) { + for (i = 0; i < st->caps->trigger_number; i++) { iio_trigger_unregister(st->trig[i]); iio_trigger_free(st->trig[i]); } @@ -836,8 +836,7 @@ static int at91_adc_probe_dt(struct iio_dev *idev, { struct at91_adc_state *st = iio_priv(idev); struct device_node *node = pdev->dev.of_node; - struct device_node *trig_node; - int i = 0, ret; + int ret; u32 prop; char *s; @@ -882,37 +881,6 @@ static int at91_adc_probe_dt(struct iio_dev *idev, st->registers = &st->caps->registers; st->num_channels = st->caps->num_channels; - st->trigger_number = of_get_child_count(node); - st->trigger_list = devm_kcalloc(&idev->dev, - st->trigger_number, - sizeof(struct at91_adc_trigger), - GFP_KERNEL); - if (!st->trigger_list) { - dev_err(&idev->dev, "Could not allocate trigger list memory.\n"); - ret = -ENOMEM; - goto error_ret; - } - - for_each_child_of_node(node, trig_node) { - struct at91_adc_trigger *trig = st->trigger_list + i; - const char *name; - - if (of_property_read_string(trig_node, "trigger-name", &name)) { - dev_err(&idev->dev, "Missing trigger-name property in the DT.\n"); - ret = -EINVAL; - goto error_ret; - } - trig->name = name; - - if (of_property_read_u32(trig_node, "trigger-value", &prop)) { - dev_err(&idev->dev, "Missing trigger-value property in the DT.\n"); - ret = -EINVAL; - goto error_ret; - } - trig->value = prop; - trig->is_external = of_property_read_bool(trig_node, "trigger-external"); - i++; - } /* Check if touchscreen is supported. */ if (st->caps->has_ts) @@ -1312,6 +1280,13 @@ static int at91_adc_resume(struct device *dev) static SIMPLE_DEV_PM_OPS(at91_adc_pm_ops, at91_adc_suspend, at91_adc_resume); +static const struct at91_adc_trigger at91sam9260_triggers[] = { + { .name = "timer-counter-0", .value = 0x1 }, + { .name = "timer-counter-1", .value = 0x3 }, + { .name = "timer-counter-2", .value = 0x5 }, + { .name = "external", .value = 0xd, .is_external = true }, +}; + static struct at91_adc_caps at91sam9260_caps = { .calc_startup_ticks = calc_startup_ticks_9260, .num_channels = 4, @@ -1325,6 +1300,15 @@ static struct at91_adc_caps at91sam9260_caps = { .mr_prescal_mask = AT91_ADC_PRESCAL_9260, .mr_startup_mask = AT91_ADC_STARTUP_9260, }, + .triggers = at91sam9260_triggers, + .trigger_number = ARRAY_SIZE(at91sam9260_triggers), +}; + +static const struct at91_adc_trigger at91sam9x5_triggers[] = { + { .name = "external-rising", .value = 0x1, .is_external = true }, + { .name = "external-falling", .value = 0x2, .is_external = true }, + { .name = "external-any", .value = 0x3, .is_external = true }, + { .name = "continuous", .value = 0x6 }, }; static struct at91_adc_caps at91sam9rl_caps = { @@ -1341,6 +1325,8 @@ static struct at91_adc_caps at91sam9rl_caps = { .mr_prescal_mask = AT91_ADC_PRESCAL_9260, .mr_startup_mask = AT91_ADC_STARTUP_9G45, }, + .triggers = at91sam9x5_triggers, + .trigger_number = ARRAY_SIZE(at91sam9x5_triggers), }; static struct at91_adc_caps at91sam9g45_caps = { @@ -1357,6 +1343,8 @@ static struct at91_adc_caps at91sam9g45_caps = { .mr_prescal_mask = AT91_ADC_PRESCAL_9G45, .mr_startup_mask = AT91_ADC_STARTUP_9G45, }, + .triggers = at91sam9x5_triggers, + .trigger_number = ARRAY_SIZE(at91sam9x5_triggers), }; static struct at91_adc_caps at91sam9x5_caps = { @@ -1377,6 +1365,8 @@ static struct at91_adc_caps at91sam9x5_caps = { .mr_prescal_mask = AT91_ADC_PRESCAL_9G45, .mr_startup_mask = AT91_ADC_STARTUP_9X5, }, + .triggers = at91sam9x5_triggers, + .trigger_number = ARRAY_SIZE(at91sam9x5_triggers), }; static struct at91_adc_caps sama5d3_caps = { @@ -1396,6 +1386,8 @@ static struct at91_adc_caps sama5d3_caps = { .mr_prescal_mask = AT91_ADC_PRESCAL_9G45, .mr_startup_mask = AT91_ADC_STARTUP_9X5, }, + .triggers = at91sam9x5_triggers, + .trigger_number = ARRAY_SIZE(at91sam9x5_triggers), }; static const struct of_device_id at91_adc_dt_ids[] = { -- 2.28.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel