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Thu, 11 Jun 2026 05:28:52 -0700 (PDT) Date: Thu, 11 Jun 2026 13:29:53 +0100 From: Nuno =?utf-8?B?U8Oh?= To: "Paller, Kim Seer" Cc: Jonathan Cameron , David Lechner , "Sa, Nuno" , Andy Shevchenko , "Hennerich, Michael" , Rob Herring , Krzysztof Kozlowski , Conor Dooley , "linux-iio@vger.kernel.org" , "linux-kernel@vger.kernel.org" , linux , "devicetree@vger.kernel.org" Subject: Re: [PATCH 3/3] iio: dac: ad3530r: Add support for AD3532R/AD3532 Message-ID: References: <20260604-iio-ad3532r-support-v1-0-c3552f9031de@analog.com> <20260604-iio-ad3532r-support-v1-3-c3552f9031de@analog.com> <20260605142428.5cd21b26@jic23-huawei> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: On Thu, Jun 11, 2026 at 07:04:37AM +0000, Paller, Kim Seer wrote: > > > @@ -445,7 +704,7 @@ static int ad3530r_setup(struct ad3530r_state *st, > > > int external_vref_uV) static const struct regmap_config > > ad3530r_regmap_config = { > > > .reg_bits = 16, > > > .val_bits = 8, > > > - .max_register = AD3530R_MAX_REG_ADDR, > > > + .max_register = AD3532R_MAX_REG_ADDR, > > > > What happens if we read off the end (via debugfs) for the smaller parts? > > I tested reading registers at 0x1000 and above on AD3531R it just > returns 0xFF and no crash. Should I add a per-chip regmap_config to limit > the exposed register space? Personally, that would make sense to me. - Nuno Sá > > > > }; > > > > > > static const struct iio_info ad3530r_info = { @@ -514,6 +773,8 @@ > > > static const struct spi_device_id ad3530r_id[] = { > > > { "ad3530r", (kernel_ulong_t)&ad3530r_chip }, > > > { "ad3531", (kernel_ulong_t)&ad3531_chip }, > > > { "ad3531r", (kernel_ulong_t)&ad3531r_chip }, > > > + { "ad3532", (kernel_ulong_t)&ad3532_chip }, > > > + { "ad3532r", (kernel_ulong_t)&ad3532r_chip }, > > > > Add a precursor patch to switch this to named initializers. Otherwise this will > > clash with the work Uwe is doing to ensure these are all done that way. > > > > > { } > > > }; > > > MODULE_DEVICE_TABLE(spi, ad3530r_id); @@ -523,6 +784,8 @@ static > > > const struct of_device_id ad3530r_of_match[] = { > > > { .compatible = "adi,ad3530r", .data = &ad3530r_chip }, > > > { .compatible = "adi,ad3531", .data = &ad3531_chip }, > > > { .compatible = "adi,ad3531r", .data = &ad3531r_chip }, > > > + { .compatible = "adi,ad3532", .data = &ad3532_chip }, > > > + { .compatible = "adi,ad3532r", .data = &ad3532r_chip }, > > > { } > > > }; > > > MODULE_DEVICE_TABLE(of, ad3530r_of_match); > > > >