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 AFAE51DE89C; Mon, 10 Mar 2025 17:43:15 +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=1741628595; cv=none; b=bdqCt7jaheQWEIzbhaquRTrfIktwmleiivAMHfrSjhL89dmJQzN1638yFKV3qrJDfQgqNvaxCgHkseJYujsAcZnd4vW8MplOodwuswv5jsjbpMSZV06Q32UeiQ4dl+LfkfQKsYYYZC6Gz70Jk1JkJpa5GZIFEVp7EElAJxX+rSI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741628595; c=relaxed/simple; bh=kMPrw9clAIdvgg+edJjpI8euTXmoiwkjYfZQwArK2iI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=oz4gk6VPF3CAtS+8njyYt17UwJo9Erc95Q/eMLBqfd61mz+8r0G5iIAhanhe0lk/2sm6H2099yC3utt9k4tKaJGbb6jG7bq1ES2YZygmawCjQH8V6VRbc1YmE6X2W3ep8bn9UnpypNwLLN8SLvWO2lHAtaDyvx/Yy9iu00F+ars= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=UfXS604T; 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="UfXS604T" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3AB28C4CEE5; Mon, 10 Mar 2025 17:43:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1741628595; bh=kMPrw9clAIdvgg+edJjpI8euTXmoiwkjYfZQwArK2iI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UfXS604TuTE7OcDr5zC4e+z5EblsDZwFj9ySXIUibPF+P3lUwOJ2lgoRHVZcnDU+X mcqeOGck9JRg+ZZEFv9zles8zkUZoPonX5JADanM2mrrYK5Fj6l+mqImZqg63w16CE ZPUZqszR5rfSE58a85WEfwRj9Qc4jm/Et+4WHuLE= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Angelo Dureghello , Stable@vger.kernel.org, Jonathan Cameron Subject: [PATCH 6.1 090/109] iio: dac: ad3552r: clear reset status flag Date: Mon, 10 Mar 2025 18:07:14 +0100 Message-ID: <20250310170431.144732184@linuxfoundation.org> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250310170427.529761261@linuxfoundation.org> References: <20250310170427.529761261@linuxfoundation.org> User-Agent: quilt/0.68 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 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Angelo Dureghello commit e17b9f20da7d2bc1f48878ab2230523b2512d965 upstream. Clear reset status flag, to keep error status register clean after reset (ad3552r manual, rev B table 38). Reset error flag was left to 1, so debugging registers, the "Error Status Register" was dirty (0x01). It is important to clear this bit, so if there is any reset event over normal working mode, it is possible to detect it. Fixes: 8f2b54824b28 ("drivers:iio:dac: Add AD3552R driver support") Signed-off-by: Angelo Dureghello Link: https://patch.msgid.link/20250125-wip-bl-ad3552r-clear-reset-v2-1-aa3a27f3ff8c@baylibre.com Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/dac/ad3552r.c | 6 ++++++ 1 file changed, 6 insertions(+) --- a/drivers/iio/dac/ad3552r.c +++ b/drivers/iio/dac/ad3552r.c @@ -703,6 +703,12 @@ static int ad3552r_reset(struct ad3552r_ return ret; } + /* Clear reset error flag, see ad3552r manual, rev B table 38. */ + ret = ad3552r_write_reg(dac, AD3552R_REG_ADDR_ERR_STATUS, + AD3552R_MASK_RESET_STATUS); + if (ret) + return ret; + return ad3552r_update_reg_field(dac, addr_mask_map[AD3552R_ADDR_ASCENSION][0], addr_mask_map[AD3552R_ADDR_ASCENSION][1],