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[23.128.96.18]) by mx.google.com with ESMTP id q26si5695418edi.415.2020.06.09.11.12.21; Tue, 09 Jun 2020 11:12:21 -0700 (PDT) Received-SPF: pass (google.com: domain of stable-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=1dUjzoml; spf=pass (google.com: domain of stable-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=stable-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387872AbgFISF4 (ORCPT + 15 others); Tue, 9 Jun 2020 14:05:56 -0400 Received: from mail.kernel.org ([198.145.29.99]:40304 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731340AbgFIRvZ (ORCPT ); Tue, 9 Jun 2020 13:51:25 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id F0D912074B; Tue, 9 Jun 2020 17:51:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591725084; bh=XxPjzOynTHbPgpR13vBAI/9uNDts2jENToDc88xOW0k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=1dUjzomlEM4Z4NaPLVJ2AtpjxW42QRYXgNFjoyL1bDscwefqygAZE1Kg2N7/7yoDW x9NilWEYQ8VXE757daXYKIcGh0AOoukWILN+k7gzNpgYgFTqypkUMrquNeYRmSUX4c bkb59BHIrkzBU91M3OJGVCWOrf92voZiZAKgsRNk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Srinivas Kandagatla , Douglas Anderson Subject: [PATCH 4.19 18/25] nvmem: qfprom: remove incorrect write support Date: Tue, 9 Jun 2020 19:45:08 +0200 Message-Id: <20200609174050.711498673@linuxfoundation.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200609174048.576094775@linuxfoundation.org> References: <20200609174048.576094775@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Srinivas Kandagatla commit 8d9eb0d6d59a5d7028c80a30831143d3e75515a7 upstream. qfprom has different address spaces for read and write. Reads are always done from corrected address space, where as writes are done on raw address space. Writing to corrected address space is invalid and ignored, so it does not make sense to have this support in the driver which only supports corrected address space regions at the moment. Fixes: 4ab11996b489 ("nvmem: qfprom: Add Qualcomm QFPROM support.") Signed-off-by: Srinivas Kandagatla Reviewed-by: Douglas Anderson Cc: stable Link: https://lore.kernel.org/r/20200522113341.7728-1-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman --- drivers/nvmem/qfprom.c | 14 -------------- 1 file changed, 14 deletions(-) --- a/drivers/nvmem/qfprom.c +++ b/drivers/nvmem/qfprom.c @@ -35,25 +35,11 @@ static int qfprom_reg_read(void *context return 0; } -static int qfprom_reg_write(void *context, - unsigned int reg, void *_val, size_t bytes) -{ - struct qfprom_priv *priv = context; - u8 *val = _val; - int i = 0, words = bytes; - - while (words--) - writeb(*val++, priv->base + reg + i++); - - return 0; -} - static struct nvmem_config econfig = { .name = "qfprom", .stride = 1, .word_size = 1, .reg_read = qfprom_reg_read, - .reg_write = qfprom_reg_write, }; static int qfprom_probe(struct platform_device *pdev)