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[185.246.87.17]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-37189897926sm1365082f8f.87.2024.08.15.05.12.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 15 Aug 2024 05:12:09 -0700 (PDT) From: Guillaume Stols Date: Thu, 15 Aug 2024 12:12:01 +0000 Subject: [PATCH 7/8] iio: adc: ad7606: Switch to xxx_get_device_match_data Precedence: bulk X-Mailing-List: linux-fbdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240815-ad7606_add_iio_backend_support-v1-7-cea3e11b1aa4@baylibre.com> References: <20240815-ad7606_add_iio_backend_support-v1-0-cea3e11b1aa4@baylibre.com> In-Reply-To: <20240815-ad7606_add_iio_backend_support-v1-0-cea3e11b1aa4@baylibre.com> To: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Lars-Peter Clausen , Michael Hennerich , Jonathan Cameron , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Greg Kroah-Hartman , "Rafael J. Wysocki" , Jonathan Corbet Cc: linux-pwm@vger.kernel.org, linux-kernel@vger.kernel.org, Michael Hennerich , linux-fbdev@vger.kernel.org, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-doc@vger.kernel.org, Guillaume Stols , 20240705211452.1157967-2-u.kleine-koenig@baylibre.com, 20240712171821.1470833-2-u.kleine-koenig@baylibre.com, cover.1721040875.git.u.kleine-koenig@baylibre.com, aardelean@baylibre.com X-Mailer: b4 0.14.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1723723923; l=13866; i=gstols@baylibre.com; s=20240417; h=from:subject:message-id; bh=mzJbwcOvbairLbN592J/ttZQ0Yv4RcpSamoG1D3d/tg=; b=xBft+6Y3H404nyXMc+9qiyy0VX26Tz2lw9fFxb8SAzrb802pcLqiky4+HcixpfwElNXeH+39M GY4H62Cj8dvBEjXc4c1Sk2hm+TX1+vH5Z9S4S+T6pnaBWU+FUcSlL7u X-Developer-Key: i=gstols@baylibre.com; a=ed25519; pk=XvMm5WHuV67sGYOJZqIYzXndbaJOlNd8Q6li6vnb4Cs= On the parallel version, the current implementation is only compatible with id tables and won't work with fx_nodes. So in this commit, the goal is to switch to use get_device_match_data, in order to simplify the logic of retrieving chip data. Also, chip info is moved in the .h file so to be accessible to all the driver files that can set a pointer to the corresponding chip as the driver data. Signed-off-by: Guillaume Stols --- drivers/iio/adc/ad7606.c | 106 ++-------------------------------- drivers/iio/adc/ad7606.h | 132 ++++++++++++++++++++++++++++++++++++++++--- drivers/iio/adc/ad7606_par.c | 22 ++++---- drivers/iio/adc/ad7606_spi.c | 31 +++++----- 4 files changed, 154 insertions(+), 137 deletions(-) diff --git a/drivers/iio/adc/ad7606.c b/drivers/iio/adc/ad7606.c index 2c9ddcd0ad77..99d5ca5c2348 100644 --- a/drivers/iio/adc/ad7606.c +++ b/drivers/iio/adc/ad7606.c @@ -43,14 +43,6 @@ static const unsigned int ad7616_sw_scale_avail[3] = { 76293, 152588, 305176 }; -static const unsigned int ad7606_oversampling_avail[7] = { - 1, 2, 4, 8, 16, 32, 64, -}; - -static const unsigned int ad7616_oversampling_avail[8] = { - 1, 2, 4, 8, 16, 32, 64, 128, -}; - static int ad7606_reset(struct ad7606_state *st) { if (st->gpio_reset) { @@ -415,96 +407,6 @@ static const struct attribute_group ad7606_attribute_group_range = { .attrs = ad7606_attributes_range, }; -static const struct iio_chan_spec ad7605_channels[] = { - IIO_CHAN_SOFT_TIMESTAMP(4), - AD7605_CHANNEL(0), - AD7605_CHANNEL(1), - AD7605_CHANNEL(2), - AD7605_CHANNEL(3), -}; - -static const struct iio_chan_spec ad7606_channels[] = { - IIO_CHAN_SOFT_TIMESTAMP(8), - AD7606_CHANNEL(0), - AD7606_CHANNEL(1), - AD7606_CHANNEL(2), - AD7606_CHANNEL(3), - AD7606_CHANNEL(4), - AD7606_CHANNEL(5), - AD7606_CHANNEL(6), - AD7606_CHANNEL(7), -}; - -/* - * The current assumption that this driver makes for AD7616, is that it's - * working in Hardware Mode with Serial, Burst and Sequencer modes activated. - * To activate them, following pins must be pulled high: - * -SER/PAR - * -SEQEN - * And following pins must be pulled low: - * -WR/BURST - * -DB4/SER1W - */ -static const struct iio_chan_spec ad7616_channels[] = { - IIO_CHAN_SOFT_TIMESTAMP(16), - AD7606_CHANNEL(0), - AD7606_CHANNEL(1), - AD7606_CHANNEL(2), - AD7606_CHANNEL(3), - AD7606_CHANNEL(4), - AD7606_CHANNEL(5), - AD7606_CHANNEL(6), - AD7606_CHANNEL(7), - AD7606_CHANNEL(8), - AD7606_CHANNEL(9), - AD7606_CHANNEL(10), - AD7606_CHANNEL(11), - AD7606_CHANNEL(12), - AD7606_CHANNEL(13), - AD7606_CHANNEL(14), - AD7606_CHANNEL(15), -}; - -static const struct ad7606_chip_info ad7606_chip_info_tbl[] = { - /* More devices added in future */ - [ID_AD7605_4] = { - .channels = ad7605_channels, - .num_channels = 5, - }, - [ID_AD7606_8] = { - .channels = ad7606_channels, - .num_channels = 9, - .oversampling_avail = ad7606_oversampling_avail, - .oversampling_num = ARRAY_SIZE(ad7606_oversampling_avail), - }, - [ID_AD7606_6] = { - .channels = ad7606_channels, - .num_channels = 7, - .oversampling_avail = ad7606_oversampling_avail, - .oversampling_num = ARRAY_SIZE(ad7606_oversampling_avail), - }, - [ID_AD7606_4] = { - .channels = ad7606_channels, - .num_channels = 5, - .oversampling_avail = ad7606_oversampling_avail, - .oversampling_num = ARRAY_SIZE(ad7606_oversampling_avail), - }, - [ID_AD7606B] = { - .channels = ad7606_channels, - .num_channels = 9, - .oversampling_avail = ad7606_oversampling_avail, - .oversampling_num = ARRAY_SIZE(ad7606_oversampling_avail), - }, - [ID_AD7616] = { - .channels = ad7616_channels, - .num_channels = 17, - .oversampling_avail = ad7616_oversampling_avail, - .oversampling_num = ARRAY_SIZE(ad7616_oversampling_avail), - .os_req_reset = true, - .init_delay_ms = 15, - }, -}; - static int ad7606_request_gpios(struct ad7606_state *st) { struct device *dev = st->dev; @@ -644,7 +546,7 @@ static void ad7606_pwm_disable(void *data) } int ad7606_probe(struct device *dev, int irq, void __iomem *base_address, - const char *name, unsigned int id, + const struct ad7606_chip_info *chip_info, const struct ad7606_bus_ops *bops) { struct ad7606_state *st; @@ -673,7 +575,7 @@ int ad7606_probe(struct device *dev, int irq, void __iomem *base_address, return dev_err_probe(dev, ret, "Failed to enable specified AVcc supply\n"); - st->chip_info = &ad7606_chip_info_tbl[id]; + st->chip_info = chip_info; if (st->chip_info->oversampling_num) { st->oversampling_avail = st->chip_info->oversampling_avail; @@ -696,7 +598,7 @@ int ad7606_probe(struct device *dev, int irq, void __iomem *base_address, indio_dev->info = &ad7606_info_no_os_or_range; } indio_dev->modes = INDIO_DIRECT_MODE; - indio_dev->name = name; + indio_dev->name = chip_info->name; indio_dev->channels = st->chip_info->channels; indio_dev->num_channels = st->chip_info->num_channels; @@ -773,7 +675,7 @@ int ad7606_probe(struct device *dev, int irq, void __iomem *base_address, NULL, &ad7606_interrupt, IRQF_TRIGGER_FALLING | IRQF_ONESHOT, - name, indio_dev); + chip_info->name, indio_dev); if (ret) return ret; diff --git a/drivers/iio/adc/ad7606.h b/drivers/iio/adc/ad7606.h index 60bac1894a91..aab8fefb84be 100644 --- a/drivers/iio/adc/ad7606.h +++ b/drivers/iio/adc/ad7606.h @@ -40,8 +40,19 @@ struct pwm_device *cnvst_pwm; +enum ad7606_supported_device_ids { + ID_AD7605_4, + ID_AD7606_8, + ID_AD7606_6, + ID_AD7606_4, + ID_AD7606B, + ID_AD7616, +}; + /** * struct ad7606_chip_info - chip specific information + * @name device name + * @id device id * @channels: channel specification * @num_channels: number of channels * @oversampling_avail pointer to the array which stores the available @@ -52,6 +63,8 @@ struct pwm_device *cnvst_pwm; * after a restart */ struct ad7606_chip_info { + enum ad7606_supported_device_ids id; + const char *name; const struct iio_chan_spec *channels; unsigned int num_channels; const unsigned int *oversampling_avail; @@ -151,16 +164,119 @@ struct ad7606_bus_ops { }; int ad7606_probe(struct device *dev, int irq, void __iomem *base_address, - const char *name, unsigned int id, + const struct ad7606_chip_info *info, const struct ad7606_bus_ops *bops); -enum ad7606_supported_device_ids { - ID_AD7605_4, - ID_AD7606_8, - ID_AD7606_6, - ID_AD7606_4, - ID_AD7606B, - ID_AD7616, +static const unsigned int ad7606_oversampling_avail[7] = { + 1, 2, 4, 8, 16, 32, 64, +}; + +static const unsigned int ad7616_oversampling_avail[8] = { + 1, 2, 4, 8, 16, 32, 64, 128, +}; + +static const struct iio_chan_spec ad7605_channels[] = { + IIO_CHAN_SOFT_TIMESTAMP(4), + AD7605_CHANNEL(0), + AD7605_CHANNEL(1), + AD7605_CHANNEL(2), + AD7605_CHANNEL(3), +}; + +static const struct iio_chan_spec ad7606_channels[] = { + IIO_CHAN_SOFT_TIMESTAMP(8), + AD7606_CHANNEL(0), + AD7606_CHANNEL(1), + AD7606_CHANNEL(2), + AD7606_CHANNEL(3), + AD7606_CHANNEL(4), + AD7606_CHANNEL(5), + AD7606_CHANNEL(6), + AD7606_CHANNEL(7), +}; + +/* + * The current assumption that this driver makes for AD7616, is that it's + * working in Hardware Mode with Serial, Burst and Sequencer modes activated. + * To activate them, following pins must be pulled high: + * -SER/PAR + * -SEQEN + * And following pins must be pulled low: + * -WR/BURST + * -DB4/SER1W + */ +static const struct iio_chan_spec ad7616_channels[] = { + IIO_CHAN_SOFT_TIMESTAMP(16), + AD7606_CHANNEL(0), + AD7606_CHANNEL(1), + AD7606_CHANNEL(2), + AD7606_CHANNEL(3), + AD7606_CHANNEL(4), + AD7606_CHANNEL(5), + AD7606_CHANNEL(6), + AD7606_CHANNEL(7), + AD7606_CHANNEL(8), + AD7606_CHANNEL(9), + AD7606_CHANNEL(10), + AD7606_CHANNEL(11), + AD7606_CHANNEL(12), + AD7606_CHANNEL(13), + AD7606_CHANNEL(14), + AD7606_CHANNEL(15), +}; + +static const struct ad7606_chip_info ad7605_4_info = { + .channels = ad7605_channels, + .num_channels = 5, + .name = "ad7605-4", + .id = ID_AD7605_4, +}; + +static const struct ad7606_chip_info ad7606_8_info = { + .channels = ad7606_channels, + .num_channels = 9, + .oversampling_avail = ad7606_oversampling_avail, + .oversampling_num = ARRAY_SIZE(ad7606_oversampling_avail), + .name = "ad7606-8", + .id = ID_AD7606_8, +}; + +static const struct ad7606_chip_info ad7606_6_info = { + .channels = ad7606_channels, + .num_channels = 7, + .oversampling_avail = ad7606_oversampling_avail, + .oversampling_num = ARRAY_SIZE(ad7606_oversampling_avail), + .name = "ad7606-6", + .id = ID_AD7606_6, +}; + +static const struct ad7606_chip_info ad7606_4_info = { + .channels = ad7606_channels, + .num_channels = 5, + .oversampling_avail = ad7606_oversampling_avail, + .oversampling_num = ARRAY_SIZE(ad7606_oversampling_avail), + .name = "ad7606-4", + .id = ID_AD7606_4, +}; + +static const struct ad7606_chip_info ad7606b_info = { + .channels = ad7606_channels, + .num_channels = 9, + .oversampling_avail = ad7606_oversampling_avail, + .oversampling_num = ARRAY_SIZE(ad7606_oversampling_avail), + .name = "ad7606B", + .id = ID_AD7606B, +}; + +static const struct ad7606_chip_info ad7616_info = { + .channels = ad7616_channels, + .num_channels = 17, + .oversampling_avail = ad7616_oversampling_avail, + .oversampling_num = ARRAY_SIZE(ad7616_oversampling_avail), + .os_req_reset = true, + .init_delay_ms = 15, + .name = "ad7616", + .id = ID_AD7616, }; #ifdef CONFIG_PM_SLEEP diff --git a/drivers/iio/adc/ad7606_par.c b/drivers/iio/adc/ad7606_par.c index d8408052262e..d83c0edc1e31 100644 --- a/drivers/iio/adc/ad7606_par.c +++ b/drivers/iio/adc/ad7606_par.c @@ -47,7 +47,7 @@ static const struct ad7606_bus_ops ad7606_par8_bops = { static int ad7606_par_probe(struct platform_device *pdev) { - const struct platform_device_id *id = platform_get_device_id(pdev); + const struct ad7606_chip_info *chip_info = platform_get_device_match_data(pdev); struct resource *res; void __iomem *addr; resource_size_t remap_size; @@ -64,26 +64,26 @@ static int ad7606_par_probe(struct platform_device *pdev) remap_size = resource_size(res); return ad7606_probe(&pdev->dev, irq, addr, - id->name, id->driver_data, + chip_info, remap_size > 1 ? &ad7606_par16_bops : &ad7606_par8_bops); } static const struct platform_device_id ad7606_driver_ids[] = { - { .name = "ad7605-4", .driver_data = ID_AD7605_4, }, - { .name = "ad7606-4", .driver_data = ID_AD7606_4, }, - { .name = "ad7606-6", .driver_data = ID_AD7606_6, }, - { .name = "ad7606-8", .driver_data = ID_AD7606_8, }, + { .name = "ad7605-4", .driver_data = (kernel_ulong_t)&ad7605_4_info, }, + { .name = "ad7606-4", .driver_data = (kernel_ulong_t)&ad7606_4_info, }, + { .name = "ad7606-6", .driver_data = (kernel_ulong_t)&ad7606_6_info, }, + { .name = "ad7606-8", .driver_data = (kernel_ulong_t)&ad7606_8_info, }, { } }; MODULE_DEVICE_TABLE(platform, ad7606_driver_ids); static const struct of_device_id ad7606_of_match[] = { - { .compatible = "adi,ad7605-4" }, - { .compatible = "adi,ad7606-4" }, - { .compatible = "adi,ad7606-6" }, - { .compatible = "adi,ad7606-8" }, - { }, + { .compatible = "adi,ad7605-4", .data = &ad7605_4_info }, + { .compatible = "adi,ad7606-4", .data = &ad7606_4_info }, + { .compatible = "adi,ad7606-6", .data = &ad7606_6_info }, + { .compatible = "adi,ad7606-8", .data = &ad7606_8_info }, + { } }; MODULE_DEVICE_TABLE(of, ad7606_of_match); diff --git a/drivers/iio/adc/ad7606_spi.c b/drivers/iio/adc/ad7606_spi.c index 287a0591533b..c23a7448f851 100644 --- a/drivers/iio/adc/ad7606_spi.c +++ b/drivers/iio/adc/ad7606_spi.c @@ -307,10 +307,10 @@ static const struct ad7606_bus_ops ad7606B_spi_bops = { static int ad7606_spi_probe(struct spi_device *spi) { - const struct spi_device_id *id = spi_get_device_id(spi); + const struct ad7606_chip_info *chip_info = spi_get_device_match_data(spi); const struct ad7606_bus_ops *bops; - switch (id->driver_data) { + switch (chip_info->id) { case ID_AD7616: bops = &ad7616_spi_bops; break; @@ -323,28 +323,27 @@ static int ad7606_spi_probe(struct spi_device *spi) } return ad7606_probe(&spi->dev, spi->irq, NULL, - id->name, id->driver_data, - bops); + chip_info, bops); } static const struct spi_device_id ad7606_id_table[] = { - { "ad7605-4", ID_AD7605_4 }, - { "ad7606-4", ID_AD7606_4 }, - { "ad7606-6", ID_AD7606_6 }, - { "ad7606-8", ID_AD7606_8 }, - { "ad7606b", ID_AD7606B }, - { "ad7616", ID_AD7616 }, + { "ad7605-4", (kernel_ulong_t)&ad7605_4_info }, + { "ad7606-4", (kernel_ulong_t)&ad7606_4_info }, + { "ad7606-6", (kernel_ulong_t)&ad7606_6_info }, + { "ad7606-8", (kernel_ulong_t)&ad7606_8_info }, + { "ad7606b", (kernel_ulong_t)&ad7606b_info }, + { "ad7616", (kernel_ulong_t)&ad7616_info }, {} }; MODULE_DEVICE_TABLE(spi, ad7606_id_table); static const struct of_device_id ad7606_of_match[] = { - { .compatible = "adi,ad7605-4" }, - { .compatible = "adi,ad7606-4" }, - { .compatible = "adi,ad7606-6" }, - { .compatible = "adi,ad7606-8" }, - { .compatible = "adi,ad7606b" }, - { .compatible = "adi,ad7616" }, + { .compatible = "adi,ad7605-4", &ad7605_4_info }, + { .compatible = "adi,ad7606-4", &ad7606_4_info }, + { .compatible = "adi,ad7606-6", &ad7606_6_info }, + { .compatible = "adi,ad7606-8", &ad7606_8_info }, + { .compatible = "adi,ad7606b", &ad7606b_info }, + { .compatible = "adi,ad7616", &ad7616_info }, { }, }; MODULE_DEVICE_TABLE(of, ad7606_of_match);