linux-kernel - [PATCH v2 1/1] nvmem: qcom-spmi-sdam: Enable multiple devices

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Message-Id: <1595360761-640-1-git-send-email-gurus@codeaurora.org>
Date:   Tue, 21 Jul 2020 12:46:01 -0700
From:   Guru Das Srinagesh <gurus@...eaurora.org>
To:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        linux-arm-msm@...r.kernel.org
Cc:     Subbaraman Narayanamurthy <subbaram@...eaurora.org>,
        David Collins <collinsd@...eaurora.org>,
        Anirudh Ghayal <aghayal@...eaurora.org>,
        Shyam Kumar Thella <sthella@...eaurora.org>,
        linux-kernel@...r.kernel.org,
        Guru Das Srinagesh <gurus@...eaurora.org>
Subject: [PATCH v2 1/1] nvmem: qcom-spmi-sdam: Enable multiple devices

Using pdev->id as the nvmem's config ID (which, by default, is
NVMEM_DEVID_NONE) prevents multiple instances of this driver from
probing because of the following error:

  sysfs: cannot create duplicate filename '/bus/nvmem/devices/spmi_sdam'

Use NVMEM_DEVID_AUTO as the NVMEM config ID to fix the issue.

Signed-off-by: Guru Das Srinagesh <gurus@...eaurora.org>
---
 drivers/nvmem/qcom-spmi-sdam.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/nvmem/qcom-spmi-sdam.c b/drivers/nvmem/qcom-spmi-sdam.c
index 8682cda..a72704c 100644
--- a/drivers/nvmem/qcom-spmi-sdam.c
+++ b/drivers/nvmem/qcom-spmi-sdam.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /*
- * Copyright (c) 2017 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2017, 2020 The Linux Foundation. All rights reserved.
  */
 
 #include <linux/device.h>
@@ -141,7 +141,7 @@ static int sdam_probe(struct platform_device *pdev)
 
 	sdam->sdam_config.dev = &pdev->dev;
 	sdam->sdam_config.name = "spmi_sdam";
-	sdam->sdam_config.id = pdev->id;
+	sdam->sdam_config.id = NVMEM_DEVID_AUTO;
 	sdam->sdam_config.owner = THIS_MODULE,
 	sdam->sdam_config.stride = 1;
 	sdam->sdam_config.word_size = 1;
-- 
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