* [PATCH v2 1/1] nvmem: qcom-spmi-sdam: Enable multiple devices
@ 2020-07-21 19:46 Guru Das Srinagesh
2020-07-22 9:32 ` Srinivas Kandagatla
0 siblings, 1 reply; 2+ messages in thread
From: Guru Das Srinagesh @ 2020-07-21 19:46 UTC (permalink / raw)
To: Srinivas Kandagatla, linux-arm-msm
Cc: Subbaraman Narayanamurthy, David Collins, Anirudh Ghayal,
Shyam Kumar Thella, linux-kernel, Guru Das Srinagesh
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@codeaurora.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;
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH v2 1/1] nvmem: qcom-spmi-sdam: Enable multiple devices
2020-07-21 19:46 [PATCH v2 1/1] nvmem: qcom-spmi-sdam: Enable multiple devices Guru Das Srinagesh
@ 2020-07-22 9:32 ` Srinivas Kandagatla
0 siblings, 0 replies; 2+ messages in thread
From: Srinivas Kandagatla @ 2020-07-22 9:32 UTC (permalink / raw)
To: Guru Das Srinagesh, linux-arm-msm
Cc: Subbaraman Narayanamurthy, David Collins, Anirudh Ghayal,
Shyam Kumar Thella, linux-kernel
On 21/07/2020 20:46, Guru Das Srinagesh wrote:
> 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@codeaurora.org>
> ---
> drivers/nvmem/qcom-spmi-sdam.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
Applied thanks,
--srini
>
> 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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