From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755161AbeDWMmV (ORCPT ); Mon, 23 Apr 2018 08:42:21 -0400 Received: from mail-wr0-f194.google.com ([209.85.128.194]:46409 "EHLO mail-wr0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755063AbeDWMl5 (ORCPT ); Mon, 23 Apr 2018 08:41:57 -0400 X-Google-Smtp-Source: AIpwx4/bfb1Ax1H9m3GPO8g+M888wgG2leplcKef1fMwQF342E6a/KlEZn0xzIuh/XE6x8h8M8EBBQ== From: Jerome Brunet To: Srinivas Kandagatla , Carlo Caione , Kevin Hilman Cc: Jerome Brunet , linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 3/3] nvmem: meson-efuse: add write support Date: Mon, 23 Apr 2018 14:41:49 +0200 Message-Id: <20180423124149.3077-4-jbrunet@baylibre.com> X-Mailer: git-send-email 2.14.3 In-Reply-To: <20180423124149.3077-1-jbrunet@baylibre.com> References: <20180423124149.3077-1-jbrunet@baylibre.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add write support to the meson-gx efuse driver. Beware, this efuse is one time programmable ! Reviewed-by: Kevin Hilman Signed-off-by: Jerome Brunet --- drivers/nvmem/meson-efuse.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/nvmem/meson-efuse.c b/drivers/nvmem/meson-efuse.c index 4623249dfd87..d769840d1e18 100644 --- a/drivers/nvmem/meson-efuse.c +++ b/drivers/nvmem/meson-efuse.c @@ -28,6 +28,13 @@ static int meson_efuse_read(void *context, unsigned int offset, bytes, 0, 0, 0); } +static int meson_efuse_write(void *context, unsigned int offset, + void *val, size_t bytes) +{ + return meson_sm_call_write((u8 *)val, bytes, SM_EFUSE_WRITE, offset, + bytes, 0, 0, 0); +} + static const struct of_device_id meson_efuse_match[] = { { .compatible = "amlogic,meson-gxbb-efuse", }, { /* sentinel */ }, @@ -52,8 +59,8 @@ static int meson_efuse_probe(struct platform_device *pdev) econfig->name = dev_name(dev); econfig->stride = 1; econfig->word_size = 1; - econfig->read_only = true; econfig->reg_read = meson_efuse_read; + econfig->reg_write = meson_efuse_write; econfig->size = size; nvmem = devm_nvmem_register(&pdev->dev, econfig); -- 2.14.3