From: Tzung-Bi Shih <tzungbi@kernel.org>
To: Ben Walsh <ben@jubnut.com>
Cc: "Benson Leung" <bleung@chromium.org>,
"Guenter Roeck" <groeck@chromium.org>,
"Dustin L. Howett" <dustin@howett.net>,
"Kieran Levin" <ktl@frame.work>,
"Thomas Weißschuh" <linux@weissschuh.net>,
"Mario Limonciello" <mario.limonciello@amd.com>,
chrome-platform@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/6] platform/chrome: cros_ec_lpc: MEC access can use an AML mutex
Date: Mon, 20 May 2024 17:46:11 +0800 [thread overview]
Message-ID: <Zksb4xB5wpxCQYtC@google.com> (raw)
In-Reply-To: <20240515055631.5775-3-ben@jubnut.com>
On Wed, May 15, 2024 at 06:56:27AM +0100, Ben Walsh wrote:
> diff --git a/drivers/platform/chrome/cros_ec_lpc_mec.c b/drivers/platform/chrome/cros_ec_lpc_mec.c
[...]
> +static int cros_ec_lpc_mec_lock(void)
> +{
> + bool success;
> +
> + if (!aml_mutex) {
> + mutex_lock(&io_mutex);
> + return 0;
> + }
> +
> + success = ACPI_SUCCESS(acpi_acquire_mutex(aml_mutex,
> + NULL, ACPI_LOCK_DELAY_MS));
> +
> + if (!success) {
> + pr_info("%s failed.", __func__);
> + return -EBUSY;
I guess it doesn't need to print anything as the -EBUSY should be propagated
correctly now.
> +static int cros_ec_lpc_mec_unlock(void)
> +{
> + bool success;
> +
> + if (!aml_mutex) {
> + mutex_unlock(&io_mutex);
> + return 0;
> + }
> +
> + success = ACPI_SUCCESS(acpi_release_mutex(aml_mutex, NULL));
> +
> + if (!success) {
> + pr_err("%s failed.", __func__);
> + return -EBUSY;
Same here.
next prev parent reply other threads:[~2024-05-20 9:46 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-15 5:56 [PATCH 0/6] Fix MEC concurrency problems for Framework Laptop Ben Walsh
2024-05-15 5:56 ` [PATCH 1/6] platform/chrome: cros_ec_lpc: MEC access can return error code Ben Walsh
2024-05-20 9:45 ` Tzung-Bi Shih
2024-05-15 5:56 ` [PATCH 2/6] platform/chrome: cros_ec_lpc: MEC access can use an AML mutex Ben Walsh
2024-05-20 9:46 ` Tzung-Bi Shih [this message]
2024-05-15 5:56 ` [PATCH 3/6] platform/chrome: cros_ec_lpc: Pass driver_data in static variable Ben Walsh
2024-05-20 9:46 ` Tzung-Bi Shih
2024-05-15 5:56 ` [PATCH 4/6] platform/chrome: cros_ec_lpc: Add a new quirk for AML mutex Ben Walsh
2024-05-15 5:56 ` [PATCH 5/6] platform/chrome: cros_ec_lpc: Correct ACPI name for Framework Laptop Ben Walsh
2024-05-20 9:47 ` Tzung-Bi Shih
2024-05-23 18:42 ` Ben Walsh
2024-05-24 2:26 ` Tzung-Bi Shih
2024-05-24 18:35 ` Ben Walsh
2024-05-24 18:39 ` Dustin Howett
2024-05-24 18:45 ` Ben Walsh
2024-05-26 1:26 ` Tzung-Bi Shih
2024-05-27 18:06 ` Ben Walsh
2024-05-28 3:08 ` Tzung-Bi Shih
2024-05-15 5:56 ` [PATCH 6/6] platform/chrome: cros_ec_lpc: Add AML mutex " Ben Walsh
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